2004 0930 ca

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2004-0930CA technical archives www.trictrenchless.com TRIC Training Log: 09-30-04 Client: West Point Solutions, San Mateo, CA Job: Apartment Complex, replace broken and clogged line Pull: 90’ / downstream / 6” SDR17 / bursting 6” AC

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Page 1: 2004 0930 Ca

2004-0930CA

technical archives

www.trictrenchless.com

TRIC Training Log: 09-30-04

Client: West Point Solutions, San Mateo, CA

Job: Apartment Complex, replace broken and clogged line

Pull: 90’ / downstream / 6” SDR17 / bursting 6” AC

Page 2: 2004 0930 Ca

2004-0930CA

technical archives

www.trictrenchless.com

We at TRIC Tools have specific requirements for the use and maintenance of our equipment with regard to safety and efficiency on the job. Our written and verbal recommendations coincide with safety regulations set by local, state, and national government agencies. Our

clients may have standards over and above industry regulations. However, the safety equipment, apparel, and operating procedures

demonstrated by our clients in this presentation may or may not comply with above mentioned government regulations.

Page 3: 2004 0930 Ca

2004-0930CA

technical archives

www.trictrenchless.com

Entry pit: Washed out and backed up due to collapsed or root infested pipe downstream. Sewer passes under and alongside utility room foundation at this point.

Page 4: 2004 0930 Ca

2004-0930CA

technical archives

www.trictrenchless.com

Exit (pulling) pit: Also washed out (landfill at bay’s edge), requiring constant sump pumping.

Page 5: 2004 0930 Ca

2004-0930CA

technical archives

www.trictrenchless.com

Backup release: Worker drills pilot hole in sewer at upstream (entry) pit to release backflow from blockage downstream between pits. Note gas and irrigation lines.

Page 6: 2004 0930 Ca

2004-0930CA

technical archives

www.trictrenchless.com

Diversion: Removing backflow from work area.

Page 7: 2004 0930 Ca

2004-0930CA

technical archives

www.trictrenchless.com

Entry prepared: Excess water is pumped out and concrete pipe section removed. Note coupling (and plug) on upstream section where new pipe will be connected.

Page 8: 2004 0930 Ca

2004-0930CA

technical archives

www.trictrenchless.com

Entry: A “saddle” is cut out at edge of pit. Just a few shovel strokes can ease entry angle immensely.

Page 9: 2004 0930 Ca

2004-0930CA

technical archives

www.trictrenchless.com

The wonders of PE pipe: 100’ section of pipe curves to accommodate the surrounding buildings.

Page 10: 2004 0930 Ca

2004-0930CA

technical archives

www.trictrenchless.com

Easy turn: Impossible with any other type of pipe, with PE this entry is relatively simple.

Page 11: 2004 0930 Ca

2004-0930CA

technical archives

www.trictrenchless.com

Shoring: In this case, 10-foot sections of 2” galvanized pipe are used to support pull. Area behind resistance plate is completely collapsed, yet upper wall is intact and useful.

Page 12: 2004 0930 Ca

2004-0930CA

technical archives

www.trictrenchless.com

Cable view: Sump pump is in continuous use to keep pulley and cable visible. Ram can operate completely immersed; however, operator needs to see when clevis appears at

threshold of pulley base.

Page 13: 2004 0930 Ca

2004-0930CA

technical archives

www.trictrenchless.com

Best Vantage Point: Out of the hole and with a

view of pulley from above. (In

this case, there was plenty of

open area to watch for the

clevis and bursting head in the

wash-out behind the

resistance plate and steel

poles.)

Page 14: 2004 0930 Ca

2004-0930CA

technical archives

www.trictrenchless.com

Safe Landing: Extender cage was used against galvanized pipe shoring to extract last couple of feet.

Page 15: 2004 0930 Ca

2004-0930CA

technical archives

www.trictrenchless.com

Bumping: In most cases involving 4” and 6” pipe, a 12 to 16 pound sledge hammer will move the pipe along nicely after the cable and bursting head are removed.

Page 16: 2004 0930 Ca

2004-0930CA

technical archives

www.trictrenchless.com

PE pipe “memory”: At entry pit, pipe will hold the curve resulting from flexed entry. Note pin bar used to hold pipe down while cleanup is underway.