Pipe User Group. Tuesday March 14, Walnut Creek, CA. Matt Wassam

Transcription

1 Pipe User Group Tuesday March 14, 2017 Walnut Creek, CA Matt Wassam

2 Agenda AWWA M-28 liner definitions brief overview What information is required to bid a project? Technology Overview Transmission Mains: Compressive Fit Distribution: CIPP Trenchless vs. Open Cut Economics

3 Pressure Liner Classifications Two categories of pressure pipe liners Independent liner is designed for all applicable loads independent of the host pipe Interactive semi-structural liner relies on radial support from host pipe to handle internal loads without failing INDEPENDENT loose-fitting and closefitting INTERACTIVE

4 Design Liner Classification (AWWA M 28 Manual) Class I Linings Class II Linings Class III Linings Class IV Linings* Non Structural Semi Structural Semi Structural Fully Structural or Structurally Independent 1. A long term (50-year) internal burst strength, when tested independently from the host * pipe, equal to or greater than the MAOP of the pipe to be rehabilitated 2. The ability to survive any dynamic loading or other short-term effects associated with sudden failure of the host pipe due to internal pressure loads

5 Why are you considering a Economics trenchless project? Pipe depth? Host pipe material? AC pipe? Surface restoration cost? Traffic disruption? Environmental? Wetlands? Contaminated soil? Construction timing?

6 Questions to ask Is your product 3 rd party verified Psi rating / material properties / safety Detailed instructions for installing future repairs / taps / connections Long-term performance testing

7 What information is needed? Pipe Diameter (exact?) Pipe material Internal corrosion (cleaning requirements) Service connection details Temp bypass requirements Adjacent utilities Pit locations and sizes Traffic control Process water discharge requirements Permitting

8 Procurement / Bidding Pilot Project: Sole Source Bid against other competing technologies Bid against conventional open cut Design Build

9 Plans for bidding project Standard Utility Drawings Adjacent Utilities Bypass Requirements

10 Project Plans #2

11 Lining Project Economics Pit Frequency 300 for CIPP 800 for CFPE Construction restrictions Work hours / days? Internal Corrosion Bypass requirements Commercial bypass? Impact envelope Surface Restoration

12 Compressive Fitting HDPE 6-48 Transmission Mains Very Long Pulls: 2, Hazen-Williams= 150 Over 10 million feet installed Class IV or Class III Large access pits Service connections require excavation Must know exact ID Future connections

13 History of Compressed Fit Lining Method originally developed by British Gas in 1970 s Partnership with industry to advance the technology with companies such as DuPont Widely used in the oil, gas and mining industries Over 10,000,000 installed globally over the past 40 years Numerous recent advancements and patents (end fittings, flange connections, monitoring, industry specific, etc.)

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15 Engineering and Design HDPE Pipe Methods of Joining Butt fusion - Butt fused joint 20% stronger than rest of pipe Electrofusion Mechanical joints

16 Liner Pipe Fusion PE pipe is manufactured in joint lengths of up to 60 Smaller diameters can be provided on reels Butt fusion process

17 Host Pipeline Cleaning and Calibration MAXIMUM PENETRATION 1/16

18 Liner Pipe Installation Cable strung through pipeline Sizing plate pulled Cable attached to pulling head Pipe pulled through reduction rollers and host pipe

19 HDPE Engineering Pulling Yield strength Closely monitored and logged

20 Termination End Fittings Stub Ends Bolt Up Compression Rings Installed

21 Fittings

22 Termination Fittings Mechanical

23 Fittings

24 Ft. Collins, Colorado 6,000 x 27

25 Ft. Collins, Colorado 6,000 x 27 2,400 x 27 in a single pull DR 26 Fully Structural pressure rated replacement

26 Ft. Collins, Colorado 2,400 x 27

27 Ft. Collins, Colorado 6,000 x 27

28 Ft. Collins, Colorado 6,000 x 27

29 Amarillo, TX Case Study Challenge 3,100 feet of 30 Cast Iron Water Transmission Main installed in 1927 Leaking lead joints Tight easement, close to homes and through busy roads Shut down limited to dry weather conditions Flow capacity needed to be maintained

30 Amarillo, TX Case Study Solution Several Methods Analyzed with CFPE selected to maximize flow capacity, limit excavation, follow the existing utility path and speed of installation Liner System Design 32 Outside Diameter DR 32.5 HDPE DR ,200 feet pull distances to minimize connections

31 HDPE layout

32 Amarillo, TX Case Study 3,100 installed in 2 days Total project cost 50% of open cut estimate Project design completed in less than a month 4 joints in 3,100 feet of pipe

33 Project Scope 525 of 24 Ductile Iron Pipe at 180 psi. Lined with 24 DR 26 HDPE PE3408

34 Project Scope 540 of 19 Steel Pipe at 180 psi. Lined with DR 26

35 Case Studies Mississippi 45,000 ft 3 inch to 12 inch steel pipe 2,250 psi CO2 injection

36 Case Studies Colorado 72,000 ft 12 inch steel 2220 PSI Produced water

37 Case Studies PHMSA Regulated Pipeline 55 miles 8 steel pipe 70 year old pipeline Oil transmission Heavy urban setting 500 psi

38 Mexico 8 12 steel pipe 27,000 ft <1,000 psi Case Studies

39 CIPP For Distribution Mains million feet installed Services reconnected robotically Temp bypass installed Relatively short runs: Must know the exact ID and internal condition

40 Class IV CIPP Water Main Renewal 1. Locate the pipe 2. Excavate access pits 3. Clean the pipe 4. CCTV inspection 5. Install service connection plugs 6. Install the structural CIPP 7. Hydrostatic pressure test 8. Robotically reinstate services 9. Reconnection & civil work 10. Disinfect the pipe 11. Site restoration

41 Temporary Bypass

42 Water Main Renewal Basic Project Steps Pipe Cleaning: Clean to bare metal Dry surface

43 Water Main Renewal Liner installation Polyester woven liner impregnated with epoxy resin Cured with hot 65 C (150 F)

44 Water Main Renewal Liner installation Pulled-in-place

45 Water Main Renewal Liner installation Pig Launcher Pig Receiver

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47 Reconnection

48 Breckenridge, CO 5,100 x 6 and 8 inch Cast Iron Pipe 9-11 feet deep History of circumferential beam breaks

49 Breckenridge, CO Wat er Main Aqua- Pipe BASE BID ALT B A DDITION TO BASE BID ALT B BID UN I T UNIT QUAN UNIT ITEM DESCRIPTION COST ITEM QUANTITY COST TITY COST COST 1.1 4" Gat e Valve EA 0 $0.00 $ $0.00 $ " Gat e Valve EA 7 $1, $10, $1, $12, " Gat e Valv e EA 0 $0.00 $ $1, $3, " Solid Sleeve EA 0 $0.00 $ $0.00 $ " Solid Sleeve EA 0 $0.00 $ $0.00 $ Vert ical Bends EA 0 $0.00 $ $0.00 $ "x4" Reducer EA 0 $0.00 $ $0.00 $ "x6" Reducer EA 0 $0.00 $ $ $ "x6" Tee EA 5 $ $3, $ $4, "x6" Tee EA 0 $0.00 $ $0.00 $ "x8" Tee EA 0 $0.00 $ $0.00 $ " MJ Cap EA 0 $0.00 $ $0.00 $ Fire Hydrant Assembly EA 3 $11, $33, $9, $99, Insulat ion LF 0 $0.00 $ $17.48 $1, " Bend EA 0 $0.00 $ $ $1, " 900 Bend EA 0 $0.00 $ $ $1, " DIP LF 0 $0.00 $ $76.15 $6, " DIP LF 0 $0.00 $ $87.31 $125, " Plug EA 0 $0.00 $ $0.00 $ " Plug EA 0 $0.00 $ $0.00 $ Reconnect t o Exist ing Fire Hydrant EA 1 $5, $5, $0.00 $ Tie int o Exist ing Main EA 0 $0.00 $ $3, $15, Cure-in-Place LF 2940 $ $427, $ $320, Sewer Main Replacement LF 0 $0.00 $ $ $12, SUBTOTAL $480, ########

50 Breckenridge, CO

51 Breckenridge, CO

52 Breckenridge, CO

53 Loveland, CO 6,400 of ,500 of open cut Public bid against open cut Project Completion July 2016

54 Loveland, CO

55 Loveland, CO

56 Loveland, CO $747,740 savings over open cut 6,200 of lining completed in 6 weeks $177,008 savings in asphalt fees

57 Loveland, CO

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59 Old Market Project

60 Old Market Project Specifics: Lined over 2500 of 10 and 12 CILJ water main 20% less than bursting and open cut Eliminated 20 (18) service reconnection excavations. (2 had to be dug up after lining.) Avoided about 10,000 ft 2 of brick removal 24 calendar days to clean and line ½ mile of mains (including small service reinstatements) calendar days total on-site - vs. 145 days (est.) for replacement

61 Old Market Project

62 Old Market Project