Pile Driving Inspector Course

Transcription

1 Pile Driving Inspector Course Module 3: Construction Documents October 2018 Pile Driving Inspector Release 10, Module 3-1 Release 10 July

2 Learning Outcomes Locate Plan Sheet Details related to pile driving Identify key elements of the Pile Installation Plan Learn how to fill the Pile Driving Record Identify & interpret applicable 455 Specifications October 2018 Pile Driving Inspector Release 10, Module 3-2 Release 10 July

3 Plans & Specification Checklist October 2018 Pile Driving Inspector Release 10, Module 3-3 A Plan and Document Checklist follows for your illustration and use. A checklist like this is useful to ensure that you remember to check all of the relevant documents. Release 10 July

4 Inspector References Approved Pile Driving Installation Plan Complete set of Project Plans with Pay Items Minutes of Previous Meetings Special Provisions Technical Special provisions for project Standard Specifications Supplemental Specifications Standard Plans (Formerly Design Standards) This class Notebook October 2018 Pile Driving Inspector Release 10, Module 3-4 Presented here is a brief list of items that the Pile Driving Inspector should have in his or her possession prior to start of the pile driving. Release 10 July

5 Project Document Governing Order Engineer: The Director, Office of Construction, acting directly or through duly authorized representatives October 2018 Pile Driving Inspector Release 10, Module 3-5 Here is the governing order of the specifications. Section 5-2 of the Standard Specifications for Road and Bridge Construction. Sets the following governing order: Special Provisions Technical Special Provisions Plans Standard Plans (Formerly Design Standards) Developmental Standards Supplemental Specifications. Standard Specifications Also, as we have seen in the previous Module, the specs refers frequently to the Engineer. Let us remember the definition of Engineer: Engineer is the Director of the Office of Construction, acting directly or through his duly designated representatives Release 10 July

6 COMPONENT Plan Revisions Other Plans Key Sheet Summary of Pay Items Key Parts of Documents IMPORTANCE Always check for revised sheets to see if there are any changes that affect the pile installation. Familiarize yourself with the plans, know where to find things without a lot of time looking. Shows what is contained in the plan set, revisions, location, Financial I.D. No., or FAP No. 1) Quantities 2) Pay Items Plan and Profile Good for project layout- shows location of utilities. Note that all utilities are not necessarily shown and that locations may not be correct. October 2018 Pile Driving Inspector Release 10, Module 3-6 Here are some key parts of the plans that can contain information needed by the Inspector. Release 10 July

7 STRUCTURAL PLANS General Notes Standard Plans General Plan & Elevation Report of Core Borings Foundation Layout Bent/Pier Plans Key Parts of Documents IMPORTANCE This sheet may contain notes that change 455 application. Also will have design assumptions made. Standard Plan Indices showing Pile details. Shows layout and elevation of bridge & foundation (one or more sheets) - Will show number of bents/piers. Can tell whether pier or bent. Shows subsurface conditions used in design of the piles. Useful to know. Shows the specific location of production and test piles. Shows specifics of each bent/pier including the Cutoff elevation for the piles. October 2018 Pile Driving Inspector Release 10, Module 3-7 This is Continuation slide showing more some of the key parts of the plans that can contain information needed by the Inspector. Inspectors must check the General Notes and the Foundation Notes for special requirements that may apply to foundations. Release 10 July

8 Scour Abutment Scour Clear-water contraction scour Scour Abutment Scour Long-term degradation Live-bed contraction scour Short-term scour Piles October 2018 Pile Driving Inspector Release 10, Module 3-8 This slide illustrates scour. Scour is the erosion and undermining of the ground caused by moving water. In general, pile tip elevations on the plans should be below the noted scour elevations. Scour can create significant holes around foundations of bridges as the following pictures will illustrate. Release 10 July

9 Scour October 2018 Pile Driving Inspector Release 10, Module 3-9 The first picture illustrates a bridge was founded on short timber piles. A 50-year storm caused scour around the pier to about half the length of the piles. The remaining pile embedment was inadequate to resist the applied structure and water forces. The downstream piles plunged and the pier rotated, broke the upstream piles and fell into the scour hole. The second picture shows an abutment that was affected by scour forces that eroded the end fill to a point where the footing was undermined. Release 10 July

10 Scour October 2018 Pile Driving Inspector Release 10, Module 3-10 This photo shows that even abutments that are protected by riprap can be subjected to scour forces. Release 10 July

11 Plan Set Review October 2018 Pile Driving Inspector Release 10, Module 3-11 We will now review a Sample Plan Set Release 10 July

12 Plan Set Sheet 1 October 2018 Pile Driving Inspector Release 10, Module 3-12 This is the Key Sheet, which is the 1 st sheet of the set of plans. We will enlarge couple of areas of this sheet. Release 10 July

13 Plan Set Sheet 1 October 2018 Pile Driving Inspector Release 10, Module 3-13 The key sheet shows a location map with the limits of the project, financial project number, county and state road number Release 10 July

14 Plan Set Sheet 1 October 2018 Pile Driving Inspector Release 10, Module 3-14 Let us enlarge another area of this sheet. Release 10 July

15 Plan Set Sheet 1 Note: At the time these plans were prepared, what was called Design Standards are now called Standard Plans October 2018 Pile Driving Inspector Release 10, Module 3-15 The key sheet will also include what specifications are applicable and what Standard Plans were used. It will also list the revisions that were performed during the development of the plans. Release 10, October

16 Plan Set Sheet 2 October 2018 Pile Driving Inspector Release 10, Module 3-16 This is the Summary of Pay Items. Let us enlarge an area where pile items are included Release 10 July

17 Plan Set Sheet 2 October 2018 Pile Driving Inspector Release 10, Module 3-17 This is the Summary of Pay Items. We can see within this enlarged view some pay items related to pile driving, such as prestressed concrete piling and Test Pile (prestressed concrete piling). Release 10 July

18 Plan Set Sheet 3 October 2018 Pile Driving Inspector Release 10, Module 3-18 This is the General Notes Sheet. Let us enlarge the general notes area. Release 10 July

19 Plan Set Sheet 3 October 2018 Pile Driving Inspector Release 10, Module 3-19 You may want to always check and review the General Notes. There may be some specific requirements and restrictions that impact the pile driving. However, in this particular plan there is nothing related to pile driving. Release 10 July

20 Plan Set Sheet 4 October 2018 Pile Driving Inspector Release 10, Module 3-20 This is the Report of Core Borings Sheet. In this particular case the Report of core borings presents borings taken in land. The information contained in this sheet can be beneficial for the inspector. Here is where the soil borings taken during the design phase are represented. Depending on the size of the project and the amount of boprings taken the report of core borings may actually consists of several sheets. Release 10 July

21 Plan Set Sheet 4 October 2018 Pile Driving Inspector Release 10, Module 3-21 Legend. The Report of Core Borings contains a legend explaining what the soil symbols mean. In addition definition of symbols and numbers are explained in this area. Release 10 July

22 Plan Set Sheet 4 October 2018 Pile Driving Inspector Release 10, Module 3-22 The report of core borings will contain a boring location plan, indicating where the soil borings were performed in relation to the proposed structure or foundations. Release 10 July

23 Plan Set Sheet 4 October 2018 Pile Driving Inspector Release 10, Module 3-23 This enlargement shows a detail at a particular boring. It includes soil information encountered at every particular location, testing, date, stationing and offset of the boring, elevation, and type of hammer used in the SPT N value determination. The numbers you see at the left of the boring under the N heading represent the N value in blows per foot. This is determined based on the procedure described in the previous Module. The blocks represent soil lab data oof basic properties such as fines content or passing 200 percentage (-200 in the drawing), natural moisture content (NMC), liquid limit (LL) and plastic index (PI). Release 10 July

24 Plan Set Sheet 4 October 2018 Pile Driving Inspector Release 10, Module 3-24 The report of core boring may contain relevant notes that may impact constructability. These notes may refer to variability of the ground, special conditions, obstructions or features that the contractor may encountered. In this particular drawing, the geotechnical engineer has placed a note regarding the potential of encountering artesian water conditions. Release 10 July

25 Plan Set Sheet 5 October 2018 Pile Driving Inspector Release 10, Module 3-25 This is a Report of Core Borings Sheet for borings taken in water. Water borings are typically taken from a barge. The information is presented in a similar way Release 10 July

26 Plan Set Sheet 5 October 2018 Pile Driving Inspector Release 10, Module 3-26 In this particular case you will see water being represented in top of the ground. This is because the borings are taken from a barge. This boring in particular have several layers of sand (symbol SP and SP-SM), clayey sand (symbol SC), plastic clay (symbol CH) and limestone from approximately El 22 down (the brick symbol). The N values in the sand layers vary from 3 to 5 blows per foot and in clay the N value is 2 blows per foot In the rock (limestone), vary from 7 to refusal (50 blows per 3 ). There is a symbol indicating loss of drilling fluid completely at around El -20 (note the 100 with an arrow). The hammer used for the SPT in this boring was a safety hammer which is a manual type of SPT hammer. Note the date of the boring. As of January 2014, consultants are required to use an automatic hammers in FDOT projects. One additional note: As per FDOT Soils and Foundation Handbook the report of core borings must include individual descriptions for every layer. So instead of the SP, CH, SP-SM symbols you will typically see actual text describing the materials observed during the performance of the soil borings. Release 10 July

27 Plan Set Sheet 6 October 2018 Pile Driving Inspector Release 10, Module 3-27 This is the Bridge Hydraulic Sheet. This plan is prepared by a Hydraulics Engineer who will estimate water levels and predict scour elevations. Release 10 July

28 Plan Set Sheet 6 October 2018 Pile Driving Inspector Release 10, Module 3-28 Here we see a detail that shows the scour elevations. It is important for the Inspector to verify that the 100 Year Scour on this sheet matches that in the Pile Data Table. If you find a discrepancy please communicate it to the Project Administrator as soon as possible. We will cover the pile data table within the next few slides. Release 10 July

29 Plan Set Sheet 7 October 2018 Pile Driving Inspector Release 10, Module 3-29 This is the Foundation Layout Sheet. The foundation layout sheet could consist in most of the cases for than one sheet. In this drawing or drawings you will find the location of the bents or piers, the location and spacing of the individual piles. It may include information of the existing piles. Release 10 July

30 Plan Set Sheet 7 October 2018 Pile Driving Inspector Release 10, Module 3-30 The foundation layout will include notes and legend. See the notes and legends on this plan. In this particular case they are widening the bridge and the foundation of the widened bents consists of 4 piles. Note that there are battered piles. Battered is a term to describe inclined piles. Note also the test pile with the black symbol. Release 10 July

31 Plan Set Sheet 7 October 2018 Pile Driving Inspector Release 10, Module 3-31 In this detail we can observe the location of the bents or piers, the location and spacing of the individual piles. It includes also information of the existing piles. Release 10 July

32 Plan Set Sheet 8 October 2018 Pile Driving Inspector Release 10, Module 3-32 This is the Pile Data Table. It is part of the Foundation layout Plans. You must have this available at all times. Release 10 July

33 Plan Set Sheet 8 October 2018 Pile Driving Inspector Release 10, Module 3-33 The Pile Data Table will include notes that define load resistance requirements, scour, minimum tip elevations and other pertinent pile driving requirements. Release 10 July

34 Plan Set Sheet 8 October 2018 Pile Driving Inspector Release 10, Module 3-34 This is the pile data table. Release 10 July

35 Plan Set Sheet 8 October 2018 Pile Driving Inspector Release 10, Module 3-35 Indicated in the Pile Data Table are the pile cut-off elevations for each bent and pile. Scour, load estimates, down drag and scour resistance are in the design criteria section. In the Installation criteria you will see the nominal bearing capacity required, the tension capacity required, the minimum tip elevation required, the test pile lengths, the required jet elevation and the required preformed elevation. Release 10 July

36 Plan Set Sheet 9 October 2018 Pile Driving Inspector Release 10, Module 3-36 This is the End Bent 1 details sheet. Release 10 July

37 Plan Set Sheet 9 October 2018 Pile Driving Inspector Release 10, Module 3-37 The end bent details sheet includes information such as the elevation of the top of piles, bent dimensions, elevations of important bent elements, reinforcement information and pile embedment within the bent. This embedment is typically 1 foot. Release 10 July

38 Plan Set Sheet 10 October 2018 Pile Driving Inspector Release 10, Module 3-38 This is the Intermediate Bent details sheet Release 10 July

39 Plan Set Sheet 10 October 2018 Pile Driving Inspector Release 10, Module 3-39 The intermediate bent details sheet includes information such as the top of piles, bent dimensions, elevations of important bent elements, reinforcement information and pile embedment within the bent. The typical embedment of the piles within the bent is 1 foot. Release 10 July

40 Pile Installation Plan October 2018 Pile Driving Inspector Release 10, Module 3-40 This slide introduces the Pile Installation Plan, known as PIP. The Pile Installation Plan is a shop drawing describing in detail the Contractor's tools and methods of installing the pile foundation. Section , Pile Installation Plan describes the minimum requirements of the Plan. The idea behind having the Contractor submit this plan is to make him put thought and planning into the project. The Contractor would benefit himself if proper planning is given to the methods of installation and equipment ahead of time, minimizing some of the unknown factors. A smooth and successful start will usually be carried all the way through the job. As a Pile Driving Inspector you must receive a copy of the Contractor's Pile Installation Plan. You should be familiar with the installation plan well in advance of the start of pile driving. Release 10 July

41 Pile Installation Plan General: Submit the completed Pile Driving Installation Plan Form (Form No ) with the following information at the preconstruction conference or no later than 30 days before driving the first pile. October 2018 Pile Driving Inspector Release 10, Module 3-41 In the following slides we will be covering one by one the items required by the specs to be included in the Pile Installation Plan. Release 10 July

42 Pile Installation Plan 1. List and size of proposed equipment including cranes, barges, driving equipment, jetting equipment, compressors, and preformed pile hole equipment. Include manufacturer s data sheets on hammers. October 2018 Pile Driving Inspector Release 10, Module 3-42 This information is usually in the Department s Pile Driving Installation Form, form This form assist contractors in filling the required information. Note that there is also a checklist of items that should be attached as part of the PIP package. Release 10 July

43 Pile Installation Plan 2. Methods to determine hammer energy in the field for determination of pile capacity. Include in the submittal necessary charts and recent calibrations for any pressure measuring equipment. October 2018 Pile Driving Inspector Release 10, Module 3-43 Shown in the picture is a device to determine strokes on open ended Diesel hammers. Release 10 July

44 Pile Installation Plan 3. Detailed drawings of any proposed followers. 4. Detailed drawings of templates. 5. Details of proposed load test equipment and procedures, including recent calibrations of jacks and required load cells. October 2018 Pile Driving Inspector Release 10, Module 3-44 Release 10 July

45 Pile Installation Plan 6. Sequence of driving of piles for each different configuration of pile layout. 7. Details of proposed features and procedures for protection of existing structures. October 2018 Pile Driving Inspector Release 10, Module 3-45 Release 10 July

46 Pile Installation Plan 8. Required shop drawings for piles, cofferdams, etc. October 2018 Pile Driving Inspector Release 10, Module 3-46 Featured in this picture is a vibration monitor used to verify that the construction activities do not produce harmful vibrations on adjacent structures. Release 10 July

47 Pile Installation Plan 9. Methods and equipment proposed to prevent displacement of piles during placement and compaction of fill within 15 feet of the piles. 10. Methods to prevent deflection of battered piles due to their own weight and to maintain their asdriven position until casting of the pile cap is complete. October 2018 Pile Driving Inspector Release 10, Module 3-47 Release 10 July

48 Pile Installation Plan 11. Proposed pile splice locations and details of any proprietary splices anticipated to be used. 12. Methods and equipment proposed to prevent damage to voided or cylinder piles due to interior water pressure. Notify the Engineer of any test pile driving and production pile driving at least one week prior to beginning the installation operations of any pile. October 2018 Pile Driving Inspector Release 10, Module 3-48 Release 10 July

49 Pile Installation Plan Acceptance of Equipment and Procedures: All equipment and procedures are subject to satisfactory field performance. Make required changes to correct unsatisfactory field performance. The Engineer will give final acceptance after the Contractor makes necessary modifications. Do not make any changes in the driving system after acceptance without authorization of the Engineer. A hammer repaired on site or removed from the site and returned is considered to have its performance altered (efficiency increased or decreased), which is considered a change in the driving system and is subject to a dynamic load test in accordance with at no additional compensation. October 2018 Pile Driving Inspector Release 10, Module 3-49 Release 10 July

50 Pile Driving Record Form October 2018 Pile Driving Inspector Release 10, Module 3-50 PILE DRIVING RECORD An important part of your job is to record information about pile driving operations. To make it easier to record and process the necessary information, you should be given a field book like the one shown. Starting on projects let on July 1, 2016 and after, the Department requires the filling of records in electronic form. Shown above are the two first pages of the log. The form and instructions can be downloaded from (In the window enter the number to find it.) Release 10 July

51 Pile Driving Record The form set is actually a Excel workbook consisting of individual 4-6 pages, depending on the pile length. Pile Log Pg 1 (project and pile information sheet) Pile Log Pg 2, 3 & 4 (1, 2 or 3 pile driving log table sheets, as needed) REF input & Notes (input up to 5 References & Note No. s 1-28, as needed) Notes (available for additional Note No. s input, as needed) Sketch provides automatic summary sketch of completed pile installation October 2018 Pile Driving Inspector Release 10, Module 3-51 We will present a summary of how the pile driving record is completed. We recommend you to go to the Detailed instructions included in the Appendices of this manual. In addition, there are training videos available at Release 10 July

52 Pile Driving Record- Page 1 October 2018 Pile Driving Inspector Release 10, Module Structure No. Structure Number of bridge, as indicated on the bridge plans. 2. Project No. FIN Project ID Number, as indicated on the plans. 3. Date Date that pile is driven. 4. Station Number Station location of the pile driven to the nearest measured unit. 5. Pile Size/Type Size and type of pile driven, as indicated on the bridge plans. 6. Length (ft) Actual/Authorized Pile Length. Any deviation in the length from the authorized pile length should be explained in the summary table (table located above inspector Name & Signature area, includes log items 46-61). 7. Bent/Pier No. Bent/Pier Number assigned to the bent or pier, as indicated in the bridge plans. 8. PILE No. Pile Number of the pile to be driven within a bent or pier, as indicated in the plans, or assigned by the project engineer. 9. Hammer Make/Model Hammer Make/Model (including manufacturer name and model number) used to drive the pile. 10. S/N Hammer Serial Number. 11. Rated Energy As accepted in the PIP. Note any changes from the PIP in the notes section. 12. Operating Rate As approved in the PIP. Note any changes from the PIP in the notes 13. REF Elev. Reference Elevation 14. Min Tip Elev. Minimum Tip Elevation as indicated in the plans, or authorized by the engineer. 15. Pile Cutoff Elev. Pile Cutoff Elevation as authorized by the engineer, or as indicated in the plans. Release 10 July

53 Pile Driving Record- Page 1 (cont d) October 2018 Pile Driving Inspector Release 10, Module Driving Criteria Driving Criteria (DC) Note: Just referring to a DC letter is not acceptable. This area has been developed for the inspector to input the main requirements of the District or Consultant Geotechnical Engineer s Driving Criteria (DC) letter. The left side of area 16 includes the following fields: Type (of DC): It could be Test pile, production pile DC or a dynamic load test on a production pile. There is a drop-down box that allows you to choose between these three options. DC2 elevation: Input only when two driving criteria are included in the letter. This is the pile tip elevation at which, and below which, blow count criteria 2 (DC2) applies. DC1 blow count criteria applies when the pile tip elevation is above the DC2 elevation. DC Max Stk: Maximum stroke allowed by the DC letter. Min. Stk req d for refusal: Minimum stroke required to consider refusal. At the right side of area 16, there are two tables to input the blows and stroke as presented in the driving criteria letter. The most typical criteria letters require only one blow count criteria. When there is only one blow count criterion, input the values of blows/ft and stroke under the DC1 heading and left the values under DC2 in blank. If the driving criteria letter includes two blow count criteria tables, then input the values indicated in the letter for the upper criterion under the heading DC1, and the lower criterion under the heading DC2. Note: When a DC2 Elev is input, the spreadsheet will show, in blue, the depth of the pile below reference, LP, at which the change of driving criteria should be applied. Release 10 July

54 Pile Driving Record- Page 1 (cont d) October 2018 Pile Driving Inspector Release 10, Module Scour EL Scour Elevation as indicated in the plans Pile Cushion Thickness and Material Measured pile cushion thickness & material. 19. Hammer Cushion Thickness & Material As accepted in the PIP. Note any changes in the "Notes" section. 20. Pile Activity Record an abbreviated title for the particular Pile Activity (ex. Driving, Splicing, Set-checks, etc.). 21. Date Input the date when the pile activity indicated above happened. 22. Start Time actual Pile Activity (pile driving, set-check, re-driving, etc.) start time. 23. Stop Time actual Pile Activity (pile driving, set-check, re-driving, etc.) end time. 24. Weather Record weather conditions at the time of Pile Activity (ex. partly cloudy, cloudy, clear, etc.). 25. Temperature The ambient (air) temperature at the time the activity being documented. 26. Notes As necessary, include note(s) relating to the Pile Activity 27. PAY ITEM Number As indicated by contract documents. 28. WORK ORDER No. The number of the transfer or release form certified by authorized personnel inspecting the pile casting operation. Concrete pile only. 29. MANUFACTURED By Name of the company that manufactured the pile being driven. 30. MFR s PILE No. Manufacturer s Pile Number as shown on the work order described in number 28. Should match the number on the pile. 31. DATE CAST As shown on the work order described in number should match the date shown on the pile. Release 10 July

55 Pile Driving Record- Page 1 (cont d) October 2018 Pile Driving Inspector Release 10, Module 3-55 This slide illustrates the survey information a how the elevations are computed by the spreadsheet. Release 10 July

56 Pile Driving Record- Page 1 (cont d) October 2018 Pile Driving Inspector Release 10, Module TBM/BM Elev. The elevation of the temporary benchmark (TBM) or benchmark (BM) used to determine all pertinent elevations. 33. TBM/BM Rod Read Actual level rod reading of shot taken while the survey rod is held (plumb) on top of the TBM or BM. 34. H.I. Elev. The Height of Instrument Elev (level/tripod) for the instrument 35. PRE-DRILLED Elev. - Actual elevation of the bottom of the Pre-Drilled hole. 36. GROUND Rod Read Actual level rod reading of the ground shot taken beside the pile. 37. GROUND Elev. Actual elevation of ground at the base of the driven pile. 38. PREFORMED Elev. Actual elevation of the bottom of the Preformed hole. 39. Bottom of Excavation Rod Reading For pier pile groups in which the proposed pile cap is below ground, actual survey rod reading taken at the bottom of the pile cap/footing excavation. 40. Bottom of Excavation Elev. Actual elevation of the bottom of the pile cap excavation. 41. Rod Reading Actual survey rod reading taken while rod is resting on top of the pile after driving. 42. PILE HEAD Elev. Actual elevation of the pile head after driving 43. PILE TIP Elev. Actual elevation of the pile tip after driving. 44. Top of SOIL PLUG Elev. (for Open ended Pipe Piles & H-piles) The elevation of the of the soil plug in feet (ex. measure Soil Plug depth using weighted tape, and then calculate Elev.). 45. Natural Ground Elev. Elevation of the natural ground below embankment/fill material. Release 10 July

57 Pile Driving Record- Page 1 (cont d) October 2018 Pile Driving Inspector Release 10, Module Splice Each The number of pile splices, as applicable. 47. Preformed Hole Indicate the length in feet of the preformed hole 48. Dynamic Load Test Indicate whether full dynamic load test DLT was performed. 49. Pay Set Check Number of set checks to be paid as per specifications 50. No. Pay Set Check Number of set checks performed that do not incur in additional compensation as per specifications 51. Redrive Indicate the number of redrives performed. 52. Extraction If the pile is extracted, indicate with a (1). If not, indicate with a zero (0). 53. Driving of Splice If splice was driven indicate with (1), if not, indicate with a zero (0). 54. Pile Type Code: Place the corresponding number in this field. To assist the inspector with selection & input, a drop-down list is included. 55. Plumb or Batter The cell drop-down list includes 3 input/display choices: PLUMB, BATTER and Select. Fields 56a and 56 b- Batter Ratio V:H (V vertical input in 56a, and H horizontal input in 56b) 57. Original Furnished Pile Length The total length of the pile as furnished, including planned splices, and excluding pile extensions/build-ups. 58. Total Pile Length with Extension Total length includes the original pile length and the extension/build-ups. To two decimal places. 59. Pile PENETRATION - below GROUND Elev, Natural Ground Elev, Bottom of Excav Elev or SCOUR Elev, as applicable The actual length of the pile installed below these elevations, to two decimal places. Release 10 July

58 Pile Driving Record- Page 1 (cont d) October 2018 Pile Driving Inspector Release 10, Module Extension/Build up, Authorized - The total length of the extension and/or buildup authorized by the engineer. To two decimal places. 61. Extension/Build up, Actual - The actual total length of the extension and/or buildup provided. To two decimal places. 62. CTQP Trainee Name A person inspecting the pile under full supervision of a qualified inspector, in order to meet the experience requirements of the CTQP qualification. 63. CTQP Trainee TIN Training Identification Number of CTQP technician. 64. Qualified Inspector - Name and TIN Printed name of the CTQP qualified inspector or present, inspecting the driving of the pile and supervising a trainee (if any). 65. Qualified Inspector - Signature Signature of qualified inspector Release 10 July

59 Pile Driving Record- Page 2 October 2018 Pile Driving Inspector Release 10, Module 3-59 Here is the pile driving part of the log. 1. Depth start The chosen Depth Start LP (Pile Log Pg 2, just below green shaded block) is the starting depth from which the table is automatically generated forward 2. Depth end End of Depth range (Depth below current REF at that point in the pile log table), after the applicable single increment [typically 1-ft, but may be revised to inch(es)] of pile driving. After the Depth start Start LP (Pile LogPg 2, cell B17, light green shaded) is decided upon, and input on the Pile log Pg 2 sheet, the Depth start and Depth end values for the table are automatically generated. 3. Blows The number of blows required to drive the pile down a distance equal to the corresponding incremental depth, which is equal to Depth end - Depth start (ft). 4. Stroke/Pressure Only one number need be entered here. 5. Notes To document events that occur during pile driving that warrant the generation of a note. 6. REF - Number to identify any reference elevation changes. When reference changes need to work with Ref Inputs and notes spreadsheet. 7. Depth Table Extended InputofaDepthTableExtensionvalueherewillprovide additional pile log length generation. Release 10 July

60 Pile Driving Record- Driving Warnings Up to three (3) warning alerts (1 each from the following 3 categories) may be triggered to appear in each of the incremental lower Notes cells, as applicable: (1) Stk! (2) pr?, PR- or PR (3) DC1 or DC2 October 2018 Pile Driving Inspector Release 10, Module 3-60 Next to the upper right side of the table, cell BK 10, there is a switch button (named DC/PR alert). This switch can be turned On or Off by the drop-down box next to it. Having the switch On may create a delay after you enter the blows and stroke, before going to the next increment. When the switch is On, Spreadsheets Pile Log Pg2 through 4 will provide warnings to the inspector, when the following happens: Stk! The maximum stroke allowed by the DC letter and entered in page 1, has been exceeded. pr? When 180 blows per foot or higher happened. The inspector may then decide to mark in inches to verify the refusal condition. The pr? Warning will be shown only if the minimum stroke for refusal is met. PR- When practical refusal is observed (20 blows/in) but the pile tip is above the minimum tip elevation PR When practical refusal is observed (20 blows/in) and the pile tip has met the minimum tip elevation requirements. DC1 When a foot of blow count criteria DC1 is met, the minimum tip elevation has been met and pile tip elev > DC2 elev. DC2 When a foot of blow count criteria DC2 is met, the min tip elevation has been met and the pile tip elev < or = DC2 elev. If no warning alerts are triggered for a foot/increment, the corresponding Notes cells would remain blank. Release 10 July

61 Pile Driving Record- Driving Warnings October 2018 Pile Driving Inspector Release 10, Module 3-61 Here is an example of the warning alerts. In this case the inspector had input 10.5 as the maximum stroke allowed, and the minimum stroke for refusal was 9.5 feet. Therefore, the spreadsheet warns/alerts the inspector about the high stroke (10.6 ft, avg stroke) between depths of 36 and 37 ft (see alert Note Stk!). From depth 37 to 38 ft, the spreadsheet warns/alerts the inspector about the relatively high blow count (>180 blows, see alert note pr?). It also warns that the Stk! Is greater than the stroke exceeded the maximum DC stroke. However, notice that the pr? warning did not show up for depth 39 to 40 ft, because the average stroke (9 ft) was less than the minimum stroke required (9.5 ft) for refusal. Release 10 July

62 Pile Driving Record- Driving Warnings October 2018 Pile Driving Inspector Release 10, Module 3-62 Here, from 86 to 87 ft, there is no refusal warning, since the minimum stroke for refusal is 9.5 ft. Between 86 to 88 ft, there are no DC2 warnings because the minimum stroke entered for this criteria was 8.5 ft. Between 88 and 89 ft, there is a DC2 warning, indicating that the blow count and stroke for this foot increment meets the blow count and stroke of the driving criteria 2 (DC2), presented in the driving criteria letter. Between 89 and ft, there is a practical refusal warning, PR and driving criteria warning DC2. As can be seen, more than one warning alert Note could be displayed in a single alert Note cell, when applicable. Note: We do not encourage to drive all the way to 240 blows per foot in or near refusal conditions. This was just an example to illustrate how the spreadsheet works. When the pile inspector experiences hard driving, he is advised to stop driving, apply mark inches to the pile, and check for practical refusal (20 blows/in). Release 10 July

63 Reference Inputs and Notes October 2018 Pile Driving Inspector Release 10, Module 3-63 Here you input reference changes. The data entered here will be used by pages 1 and 2 to update reference elevations after changes happen. Input REF EL and Input REF description columns: Input REF EL and REF description data into the table, starting with REF 1. The LP target values (for min tip & c/o) are automatic sheet calculations. Maintain the current/latest REF Elev on the Pile Log Pg 1 sheet also. If more REF s are used, input REF EL and REF description data on the table using REF No. 2 row next, and so on. Typical FDOT pile driving would use only 1 or 2 References (ex. REF 1 and REF 2). Notes There are two Notes sheets: REF inputs & Notes and Notes (hidden tab that can be unhidden if necessary). There are two types of notes included on the REF inputs & Notes : Abbreviated Std Notes (standard commonly used notes) and other manually input notes, Notes The current reference list (legend) of Std Notes is located in the Notes area of the REF inputs & Notes sheet, including notes which are commonly/frequently applied to pile logs). Release 10 July

64 Sketch spreadsheet October 2018 Pile Driving Inspector Release 10, Module 3-64 This Sketch sheet will display a graphical view of the final pile installation indicating Pile Head Elevation, Pile Tip Elevation, Ground Elevation, REF Elevation(s) (REF Elevation that are used), Pre-drill Elevation, Pre-form Elevation, Scour Elevation and Min Tip Elevation. Notes There are two Notes sheets: REF inputs & Notes and Notes (hidden tab that can be unhidden if necessary). There are two types of notes included on the REF inputs & Notes : Abbreviated Std Notes (standard commonly used notes) and other manually input notes, Notes The current reference list (legend) of Std Notes is located in the Notes area of the REF inputs & Notes sheet, including notes which are commonly/frequently applied to pile logs). Release 10 July

65 Sketch spreadsheet (cont d) October 2018 Pile Driving Inspector Release 10, Module 3-65 The final input required from you is to indicate under Pile Bearing how (the criteria used) the pile was accepted. Select from the drop down box which criterion applied or type it if the reason for accepting the pile is not included in the options given by the dropdown box. Under Pile Penetration the log will automatically review pile log input data and calcs against the FDOT Standard Spec Penetration Requirements to determine the status of the pile s penetration relative to the specs. No input is required here. Release 10 July

66 Pile Driving Record Sample October 2018 Pile Driving Inspector Release 10, Module 3-66 This slide and the next one show a sample of a completed pile driving record. Here are the Pile Driving log pages 1 and 2 samples. Release 10 July

67 Pile Driving Record Sample October 2018 Pile Driving Inspector Release 10, Module 3-67 Here is the continuation of a completed driving record sample. Here are the Reference Inputs and Notes and the Sketch page samples. Release 10 July

68 Learning Outcomes Locate Plan Sheet Details Related to Pile Driving Identify key elements of the Pile Installation Plan, PIP, and covered the specifications requirements regarding the PIP Learn how to fill the Pile Driving Record October 2018 Pile Driving Inspector Release 10, Module 3-68 We have come to the end of this Module. We have covered the important plan sheets, details and notes that you need to be familiar with when dealing with Pile Driving We have identified key elements of the Pile Installation Plan, PIP, and covered the specifications requirements regarding the PIP. We learned how to fill the Pile Driving Record Release 10 July

69 ANY QUESTIONS? October 2018 Pile Driving Inspector Release 10, Module 3-69 Release 10 July