Blaster Trade Communication Study Guide Blasting Logs and Reports

Transcription

1 Blaster Trade Communication Study Guide Blasting Logs and Reports June 2012

2 Regulatory Information To work on a blast site, you will be required to comply with the Blasting Safety Regulations. The Blasting Safety Regulations detail how to blast safely. You are required to read the Blasting Safety Regulations. A copy is available online at Page 2 of 36

3 The Department of Labour and Advanced Education, Occupational Health and Safety (OHS) Division requires that Blasters complete and submit various logs, forms and reports. OHS makes some of these documents available. Blasters and employers can develop and use their own forms as long as they meet the minimum information requirements indicated in the Blasting Safety Regulations. Sample forms are provided here that may be useful in your work. They may be used if your employer does not already have forms. The purpose of this guide is to help you identify the logs and reports and describe the procedures used to complete them. At the end of this unit, you will be able to complete the following logs and reports, as required per the provincial Occupational Health and Safety Act or Blasting Safety Regulations. These include: 1. Blast Log 2. Blasting Incident Report 3. Application for Special Case Blasts and Specialized Blasts 4. Written Work Procedure 5. Deviation 6. Magazine Inventory 7. Hazard Assessment Form Page 3 of 36

4 Blast Log In accordance with the Blasting Safety Regulations, a blaster with direction and control of a blasting operation must make a blast log for the blast. Only the blaster with direction and control of a blasting operation is required to make a blast log. However, if they wish, other blasters may make their own personal logs. The employer must ensure that the blaster makes a blast log. The blaster must give a copy of a completed blast log to their employer as soon as reasonably possible. If possible, the blaster should give a copy of a completed blast log before the end of the day, after firing the blast and inspecting the blasting area. The employer must keep the copy of a blast log received from the blaster for at least 3 years after the date of the blast. There is no requirement for the blaster to keep the blast log after they have given a copy to the employer, according to the Blasting Safety Regulations. However, the blaster may choose to keep a copy of the blast log for his/her own records. These records may be helpful in demonstrating evidence of the blaster s experience when applying for certification or employment purposes. The Occupational Health and Safety division of the Department of Labour and Advanced Education (OHS) does not provide a form for the blast log. The Blasting Safety Regulations require that the blast log include all of the following information: The date and time of the blast The location of the blast The name, address and telephone number of the employer The name, blaster certificate number and signature of the blaster who had direction and control of the blasting operation The distance from the nearest house, residence, shop, church, school or other structure occupied in whole or in part by people The distance from the nearest structure other than those mentioned above How the blast was initiated The following drilling and loading characteristics for each hole or for each group of holes sharing the same characteristics: o Hole identifier number o Hole diameter o Hole depth o Burden o Spacing o Quantity of explosives planned to be loaded in each hole, recorded in kilograms Page 4 of 36

5 o Total quantity of explosives planned to be used for the blasting operation, recorded in kilograms o Type and length of stemming o Type and brand of explosive o Type of detonator A sketch of the loading pattern for the blast The total quantity of explosives actually loaded into each hole, recorded in kilograms The maximum quantity of explosives per delay, recorded in kilograms The specifics of the delay pattern The number of detonators used in the blast The period numbers of the detonators used in the blast The resistance in the electric blasting circuit, recorded in ohms (before the last connection is made in an electric blasting circuit, the blaster must test the resistance in the circuit with a blasting meter to ensure that readings are consistent with the values calculated in the blast design) The type of warning signal used Whether blasting mats were used Whether warning signs were posted on all public roads near the blasting area, leading to the blasting area and leading from the blasting area Whether all roads and approaches were guarded or barricaded The results of the inspection of the blasting area conducted after the blast Whether a misfire occurred, and Whether there was any injury to persons or damage to property resulting from the blast. A sample Blaster s Log is provided in the several following pages. Page 5 of 36

6 Sample of Blaster s Log Date of Blast Blast Location Blaster s Log Time Material Blasted Name of Employer Employer Phone Number Employer Address Blaster in Charge Blaster s CQ Number Blaster s Signature Drillers Helpers Distance to nearest occupied structure (metres) Distance to nearest structure other than occupied structures (metres) Blast Initiation Electric Non Electric Electronic Shot Type Overburden Secondary Demolition Quarry Construction Other (effect) Driling and loading characteristics for each hole (see attched) Hole diameter Spacing Total number of holes Total weight of explosive in each hole (kg) Type and length of stemming Type of detonator / Total number of holes Maximum quantity of explosives per delay (kg) Number of detonators used Type of warning signal used Burden Cubic metres Powder factor Total weight planned for blasting operation (kg) Type and brand of explosive Period numbers of detonators Delay pattern specifics Resistance in the blasting circuit (ohms) Number of blasting mats used Were warning signs posted on all public roads near the blasting area? Yes No Where all roads and approaches guarded or barricaded? Yes No Result of inspection of blasting area done after the blast Good Fragmentation: Yes No Flyrock Yes No Backbreak: Yes No Oversized Yes No Scaling required: Yes No Monitored: Yes No Page 6 of 36

7 Explosives Blaster s Log Size Type Weight Detonators Length Type Delay Number used Seismograph Locations Seismograph Results 1. Distance from blast: m 2. Distance from blast: m 3. Distance from blast: m Seismograph T V L PPV SPLdB Weather conditions Did a misfire occur? Yes No Did any injury to person or damage to property result from the blast? Yes No Page 7 of 36

8 Sketch of Loading Pattern for the Blast This sketch should include the direction and distance to the nearest structure. Show north and the initiation timing. A diagram has been started to show the format and details needed. Blast Plan: # Date: n 1 x Sample Initiation Sequence X = 25 ms n = 130 ms Numbers in this font are hole numbers. For delays and other values put on this diagram, numbers may replace letters if values differ across the blasting plan. Page 8 of 36

9 Drilling and Loading Characteristics of Holes The following table provides the rest of the details regarding the specific holes. Hole No Depth Collar Feet Loaded Quantity of explosives planned (kg) Quantity of explosives actually loaded (kg) Page 9 of 36

10 A presentation summarizing this information on blasting logs is available time for this session is about 34 minutes. Self Assessment 1. How long after your participation in a blast must you keep your own log records? A. You are not required to keep copies for yourself after the blast. B. You must keep records as long as you work for that employer. C. You must keep records for up to 6 months. D. You must keep records for up to one year. 2. How soon after the blast must a record be completed and submitted to the employer? A. Within 24 hours of the blast completion. B. As soon as the muckpile has been cleared. C. By the end of the day that the area was blasted. D. After any complaints from neighbors have been resolved. 3. What is not included in the Blaster s log? A. The delay periods used over the entire blast site. B. The complete contact information for the employer. C. The complete contact information for the blaster in charge. D. The warning signage used over the entire blast site and approaching roads. See correct answers to the questions above on the next page. Page 10 of 36

11 The correct answers are as follows: 1. A 2. C 3. C Page 11 of 36

12 Blasting Incident Report Any one of the following occurrences can be considered a blasting incident: A misfire or a suspected misfire The presence of any fire, heat or gas that creates a risk of an explosive detonating accidentally Injury to any person or damage to property from flying material, or Flying material leaving the workplace. If a blasting incident occurs, the employer, in consultation with the blaster, must notify the Director of Occupational Health and Safety, with the Nova Scotia Department of Labour and Advanced Education, in writing, no later than 24 hours after the time of the blasting incident. The employer must submit a blasting incident report and a copy of the blast log to the Director as soon as reasonably practicable. If one or more committees have been established at the workplace, or one or more representatives have been selected, the employer must give each committee and representative a copy of the blasting incident report and a copy of the blast log as soon as reasonably practicable. The employer must consult with the committees and representatives about actions that may prevent a future blasting incident similar to the one that has occurred. The employer will also take every precaution that is reasonable in the circumstances to prevent a future blasting incident similar to the one that has occurred. The OHS Division does not provide a form for the blasting incident report. The Blasting Safety Regulations require that the blasting incident report include all of the following: A summary of the blasting incident The date and time of the blasting incident The location of the blasting incident If a supervisor was directing work in the blasting area, the name of the supervisor The name of the blaster under whose direction and control the blasting operation was conducted The names of all blasters involved in the blasting operation, together with their blaster certificate numbers The name and telephone number of the person completing the blasting incident report Page 12 of 36

13 The names and addresses of all persons who witnessed the blasting incident If any person was injured as a result of the blasting incident, the name and address of the person and a description of the injuries sustained If any property damage occurred as a result of the blasting incident, a description of the property damage A description of the weather at the time of the blasting incident If the blasting incident occurred during or as a result of a blast, how the blast was initiated The employer s assessment of the cause of the blasting incident A description of actions that may prevent a future blasting incident similar to the one that is the subject of the blasting incident report. Page 13 of 36

14 Sample of Blasting Incident Report Summary of Blasting Incident Blasting Incident Report Date of Blast Blast Location Name of Supervisor (if applicable) Name of Employer Blaster in Charge Time Type of Blasting Incident Address of Supervisor Address and Phone Number of Employer Blaster s Signature Name Name Name Information on all blasters involved in the incident Certificate Number Certificate Number Certificate Number Person Completing this Report Telephone Number Name Name Name Name Information on all witnesses of the incident Address Address Address Information for any individuals injured or property damaged Address Description of injury Name Address Description of injury Name Address Description of injury Description of Property Damage Page 14 of 36

15 Weather at the time of the blast Blasting Incident Report Type of initiation of blast (if applicable) Employer s assessment of blast cause Actions to be taken to prevent a similar incident in the future Notification: Director (within 24 hours) Copy to Safety Committtee There is no special format for this notification. The example given here is a sample of how it may be done. However, any submitted form should note the: Name, phone number and address of the employer Type of blasting incident Date and time of incident Location of incident. The incident report can be submitted electronically so long as the employer first verifies that the Occupational Health and Safety Division has all computer software necessary to open all submitted reports. A presentation summarizing this information on incident reports is available time for this session is approximately 7 minutes. Page 15 of 36

16 Self-Assessment 1. Who must receive a copy of the Blast Incident Report within 24 hours after the incident? A. The employer. B. The Director of Apprenticeship Training. C. The Director of Occupational Health and Safety. D. The committee established at the workplace. 2. When is a supervisor s name part of the Incident Report? A. When there are witnesses to the incident. B. When a supervisor was involved in the blast. C. Any time a blaster completes an incident report. D. In any company where a work committee has been established. 3. What is not considered a blasting incident? A. A blaster was hit by flyrock. B. A nearby window was broken by air. C. A blaster tripped and injured his leg. D. It is suspected that the explosives did not detonate. 4. Who is ultimately responsible for determining what happened and how to prevent it in the future? A. The blaster. B. The employer. C. The Director of Occupational Health and Safety. D. The committee established at the worksite. See correct answers to the questions above on the next page. Page 16 of 36

17 The correct answers are as follows: 1. C 2. B 3. C 4. B Page 17 of 36

18 Application for Special Case Blasts and Specialized Blasts Special case blasts A special case blast is any blasting activity conducted by persons who do not hold the Nova Scotia blaster certificate for the blast they want to perform. The following examples are some of the situations that may demand a special case blast. Any blast within 50 m of homes, such as to install power poles or fence posts, that is not carried out by a 1st class blaster Seismic blasting To perform a special case blast, you have 4 options: 1. Obtain a 1st, 2nd or 3rd Class Blaster Certificate of Qualification (whichever classification is appropriate for the planned blast). 2. Obtain blaster assistant status and work under the supervision of a certified 1st, 2nd or 3rd Class Blaster (whichever classification is appropriate for the planned blast). 3. File a written work procedure for a special case blast 30 days prior to the scheduled blast. See the Written Work Procedure section of this guide to learn more about written work procedures. 4. Apply for a deviation. See the Deviation section of this guide to learn more about deviations. Specialized Blast Blasting of any of the following (whether or not you hold the appropriate certification): Blasting in confined space Blasting underwater Blasting to demolish an above-ground building, stack or similar structure Blasting ice Blasting in theatrical applications Blasting in, at or near an oil or gas well To perform a specialized blast, you have 2 options: Page 18 of 36

19 1. File a written work procedure for a specialized blast 30 days prior to the scheduled blast. (See the written work procedure section of this guide for more information.) 2. Apply for a deviation. (See the deviation section of this guide for more information.) Self Assessment 1. What would be a special case blast? A. A blast 45 m from a row of new houses carried out by a 1 st class blaster. B. A blast 45 m away from an established neighborhood carried out by a 2 nd class blaster. C. A blast 55 m away from a row of new houses carried out by a 1 st class blaster. D. A blast 55 m away from a row of new houses carried out by a 2 nd class blaster. 2. What statement is true? A. You need to be a 1 st class blaster to blast underwater. B. You need to be a1st class blaster to apply for a special case blast. C. You need to be a blaster assistant to apply for a special case blast. D. You need to be a 1 st class blaster to conduct a blast within 50 m of a residence. See correct answers to the questions above on the next page. Page 19 of 36

20 The correct answers are as follows: 1. B 2. D Page 20 of 36

21 Written Work Procedure An employer or a person who proposes to conduct specialized blasting or a special case blast must prepare a written work procedure for using and handling explosives in the blasting operation and file it with the Director of Occupational Health and Safety (OHS) This must be done at least 30 days before the planned date of the specialized blasting or the special case blast. You may ask the Director to review it within a shorter time frame. The OHS division will review it for safety issues and provide you with a decision. Blasting in any of the following situation requires this step. It must be done by all people planning such blasts, whether or not they hold certification: Blasting in confined space Blasting underwater Blasting to demolish an above-ground building, stack or similar structure Blasting ice Blasting in theatrical applications Blasting in, at or near an oil or gas well The written work procedure must have the following information: The names and qualifications of all persons who will be conducting blasting activities in the blasting operation A detailed description of how the planned blast will be safely performed. A written work procedure can be very specific and describe a single blast operation. It can also be more general and detail the limits and procedures to be adhered to every time this type of blast is performed over a longer period of time. In any written procedure, you must provide proof that the work will be safe. The more detailed information you provide the better. There is no fee to file a written work procedure. The form can be found at Page 21 of 36

22 Send the completed written work procedure at least 30 days before the planned date of the blast to: Director, Occupational Health and Safety division Department of Labour and Advanced Education 5151 Terminal Road, 5th Floor Halifax, NS B3J 1A1 Fax: (902) Page 22 of 36

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25 Self Assessment 1. What would not be a special case blast? A. Clearing an ice dam on a river. B. Demolishing a building downtown. C. Blasting in a quarry for ore extraction. D. Blasting as part of oil and gas exploration. 2. By what time should the written work procedure be filed? A. 24 hours before the blast. B. 10 business days before the blast. C. 2 weeks before the blast. D. 30 days before the blast. 3. Which statement describes a written work procedure? A. A plan for a specific blast, to be used one time. B. A standard procedure documented and approved to be applied on a routine basis. C. A plan for a specific type of blast, to be used when applicable over a longer period of time. D. A and C are true. E. A, B and C are true. See correct answers to the questions above on the next page. Page 25 of 36

26 The correct answers are as follows: 1. C 2. D 3. D Page 26 of 36

27 Deviation A deviation requests permission to perform something in a way that the regulations do not allow, but which is as safe or safer than the method allowed by the regulations. The blaster, employer or organization can apply for the deviation. Deviations can be applied to any regulation under the Occupational Health and Safety Act, including the Blasting Safety Regulations. Unlike the written work procedure, a deviation request applies only to a single blast planned for a specific date and cannot be applied to other similar blasts which have the same features. The completed form must have the following information: The contact information of the applicant The regulation used in this deviation The substitutions suggested in this deviation Benefits and drawbacks to health and safety Technical information to support this deviation There is no fee for filing this application. It will take at least 28 days to process the request. The form can be found at the Occupational Health and Safety site: Send the completed request to: Director, Occupational Health and Safety Division Department of Labour and Advanced Education 5151 Terminal Road, 5th Floor Halifax, NS B3J 1A1 Fax: (902) ohsdivision@gov.ns.ca Page 27 of 36

28 Self-Assessment 1. See the following options. What information is needed for the deviation request? A. A and B only. B. B and C only. C. A, B and C only. D. A, C and D only. A. The name and phone number of the applicant. B. The benefits and drawbacks of the methods currently in the regulation. C. The benefits and drawbacks of the methods of the suggested deviation. D. The regulations used in this deviation. 2. How is a deviation different from a written work procedure? A. A deviation requires that the applicant be a certified blaster. B. A deviation can only be applied in one specific situation and blast. C. A written work order does not substitute one method for another. D. A written work order is sent to the Director of Occupational Health and Safety. See correct answers to the questions above on the next page. Page 28 of 36

29 The correct answers are as follows: 1. D 2. B Page 29 of 36

30 Magazine Inventory The employer must ensure that an employee in charge of a magazine maintains a written inventory of the contents of the magazine. The Blasting Safety Regulations require the magazine inventory include either A record of detonators stored in the magazine, organized by period and legwire length, or A record of explosives other than detonators stored in the magazine, organized by type of explosive. An employer must keep a magazine inventory for at least 2 years after the date that information is last entered into the magazine inventory. The magazine inventory is kept at the workplace, and not in the magazine. A short presentation on magazine inventories is available It includes information concerning safety regulations regarding safe storage The total time for this presentation is approximately 11 minutes. Please note: Provincial magazine licenses were eliminated with the introduction of the Blasting Safety Regulations. Magazine licenses are now issued by the Natural Resources Canada Explosives Regulatory Division. Page 30 of 36

31 Self Assessment 1. What is a rule regarding magazines? A. Explosives must be organized by legwire length B. The inventory must not be stored in the magazine itself. C. Detonators must be recorded and organized by type of explosive. D. Materials must be stored in the inventory for no more than 2 years. 2. Who is responsible for maintaining a written magazine inventory? A. The employer. B. The company owner. C. The employee designated as being in charge. D. All employees who use the materials in the magazine. See correct answers to the above questions on the next page. Page 31 of 36

32 The correct answers are as follows: 1. B 2. C Page 32 of 36

33 Hazard Assessment Form Hazards are evaluated and identified as indicated in Section 28 (2) of the Occupational Health and Safety Act. It specifies a written OHS program including a hazard identification system. Every worker on the site is involved in identifying potential hazards and preventing any injury or property damage. Follow up and control of hazards is required by law. The OHS Division does not provide a form for a hazard assessment. The following is a sample form that gives some examples of hazards that should be noted. Page 33 of 36

34 Sample Hazard Asessment Form Job Location: General Contractor: Date: Supervisor: Actual Potential Conditions on-site OK or N/A Hazard Priority Comments on health, injury, damage to equipment Item # Buildings on the site Buildings off-site affected Roadways / Traffic on the site Walking Trails / Pedestrians Overhead lines, electric or other Buried pipe, cable Trench work involved Streams or ponds affected Traffic control concerns Signage / Warning Permitting GPS Distance Building: metres Nearest road: metres Suggested action to be taken Priority Person responsible Date completed Hazard Priority Key A A condition or practice likely to cause permanent disability, loss of life or heavy property loss B A condition or practice likely to cause serious injury or illness resulting in temporary disability or moderate property loss C A condition or practice likely to cause minor non disabling injury or illness or non-disruptive property damage Performed by: Date: Management review: Date: Page 34 of 36

35 Self Assessment 1. What details are listed on the hazard report? A. 1, 2 and 3. B. 1, 2 and 4. C. 2, 3, and 4 D. 2, 4 and 5. Options 1. Buildings on the site 2. The presence of any walking trails 3. Whether trenches were needed for this blast. 4. How many people working on the site 5. Location of any natural gas piping in the area. 2. The risk of flyrock hitting local business buildings and pedestrians or vehicles would have which priority? A. A B. B C. C D. Unknown until the blast is done and results evaluated. 3. A blaster walking in the woods towards the blasting site may trip and fall. What is the priority for this hazard? A. A B. B C. C D. Unknown until the area has been seen and evaluated for ground conditions. See correct answers on the next page. Page 35 of 36

36 The correct answers are as follows: 1. A 2. A 3. C Page 36 of 36