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TECHNICAL ARCHIVES




           PROJECT LOG

                      DATE
               August 8–13, 2005

                     CLIENT
Marriott Hotel, 3400 Market Street, Riverside, CA

                 CONTRACTOR
       ARS Rescue Rooter, Riverside, CA
RIVERSIDE, CALIFORNIA: AUGUST 2005                                                                                                   2




        Tuesday: Fusing 8” SDR17 HDPE pipe behind hotel. Note PE cap and short pieces of SDR11, for use as initial fuse after cap.
RIVERSIDE, CALIFORNIA: AUGUST 2005                                                                                                 3




        A close shave to make first fusion. Thicker walled pipe (SDR11) makes a stronger leading section to follow bursting head.
RIVERSIDE, CALIFORNIA: AUGUST 2005                                                                                   4




        Entry point (at left) roughly 7 feet deep with angled access. Note temporary connections for residual flow.
RIVERSIDE, CALIFORNIA: AUGUST 2005                                                                                                    5




        Wednesday: Rescue Rooter confers with hotel management. Another active tie-in is discovered upstream from entry point, and
        further excavation is required near loading dock to uncover that connection. Pull is postponed until the following morning.
RIVERSIDE, CALIFORNIA: AUGUST 2005                                                                                                        6




        6-inch steel I-beams are driven almost 4 feet into the ground to brace against pull at exit pit (4’ x 6’ x 6’ deep in hallway).
RIVERSIDE, CALIFORNIA: AUGUST 2005                            7




                                     Wednesday afternoon:
                                     Work inside hallway
                                     precludes the use of
                                     large power equipment.
RIVERSIDE, CALIFORNIA: AUGUST 2005                                                                                                       8




        Thursday morning: Water supply is shut off. Heavily corroded and restricted cast iron pipe at entry point, near property line.
RIVERSIDE, CALIFORNIA: AUGUST 2005                         9




        Attaching cable and bursting head to fused pipe.
RIVERSIDE, CALIFORNIA: AUGUST 2005                                                                            10




        Head driver (front) screws onto 2” diameter threaded cable stud, and pipe driver threads on behind.
RIVERSIDE, CALIFORNIA: AUGUST 2005                                          11




        Bursting head, or mole, slides onto assembly, and is ready to go.
RIVERSIDE, CALIFORNIA: AUGUST 2005                                                                                                          12




        Shortly after entry, Thursday afternoon. 40 feet later, just inside the building foundation behind the loading dock, the bursting
        head is trapped by a combination of no-hub couplings and a thick external sleeve of PVC plastic.
RIVERSIDE, CALIFORNIA: AUGUST 2005                                                                                                   13




        Friday morning: After excavating to free the bursting head, shoring was reset and pull was resumed. The 12+ hour delay in
        resuming water and sewer service required hotel management to relocate numerous guests, including an entire wedding party.
RIVERSIDE, CALIFORNIA: AUGUST 2005                                                                                                        14




        Friday afternoon, viewed from Market Street. About 130’ of new pipe is in the ground. After another 30 feet or so, the bursting
        head will show itself at the other end.
RIVERSIDE, CALIFORNIA: AUGUST 2005                                                                                                  15




        Not without a fight, however. Another PVC sleeve is encountered about 25’ from the finish. This requires another excavation
        inside the hotel, at a wall separating lobby rest rooms from an adjacent hallway.
RIVERSIDE, CALIFORNIA: AUGUST 2005                                                                                                    16




        Ram, pulley base, and plate are hoisted together out of the pulling hole to clear the way for reinforcement of the shoring.
RIVERSIDE, CALIFORNIA: AUGUST 2005                                                                                                        17




        After the second impasse, the entire pulling support structure is failing. The left I-beam is noticeably bowed and shifted, and
        the right I-beam is buckled and twisted out of place altogether. 6” x 6” wood beams spanning the steel were crushed.
RIVERSIDE, CALIFORNIA: AUGUST 2005                                                                                                        18




        ARS Rescue Rooter crew digs up the mole for the second time, then cuts away the PVC sleeve and collected couplings. PVC
        often does not break apart like cast iron, clay, or concrete pipe, but rather folds and expands. Couplings around the bursting
        head within such a sleeve can create a long and corrugated anchor, which in this case withstood about 45 tons of pulling force.
RIVERSIDE, CALIFORNIA: AUGUST 2005                                                                                                          19




        11:05 PM Friday, and the head has arrived! A second pair of 6” I-beams was driven in next to the failing ones, and they were
        starting to shift after only 25’ of pulling. The last leg of the pull still required almost 40 tons of force and caused some pipe
        stretching, even though the entire run contained no bends other than the entry.
RIVERSIDE, CALIFORNIA: AUGUST 2005                                                                                                          20




        Pulling assembly and cribbing removed. Note garden hose, used to put water down the line when pulling upstream. This re-
        duces friction against the bursting head and softens surrounding earth, often resulting in significantly lower hydraulic pressures
        needed to burst existing pipe. In this case, water was less effective against couplings and foundation sleeves embedded in sand.
RIVERSIDE, CALIFORNIA: AUGUST 2005                                                                                                        21




        Head slides off core assembly to facilitate cutting of pipe. This design also simplifies removal of the mole in restricted areas
        such as manholes and narrow culverts.
RIVERSIDE, CALIFORNIA: AUGUST 2005                                                                                                      22




        Saturday Morning: Shortly after Rescue Rooter finishes connections and sewer is operational, steel beams are cut off at ground
        level with an acetylene torch and removed.
RIVERSIDE, CALIFORNIA: AUGUST 2005                                                                                          23




        Marriott General Manager Tom Donahue and TRIC Tools General Manager Myles O’Dwyer rejoice in the hard-earned (and
        not so simple) pleasure of running water and working drains!

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2005 0809 Ca

  • 1. TECHNICAL ARCHIVES PROJECT LOG DATE August 8–13, 2005 CLIENT Marriott Hotel, 3400 Market Street, Riverside, CA CONTRACTOR ARS Rescue Rooter, Riverside, CA
  • 2. RIVERSIDE, CALIFORNIA: AUGUST 2005 2 Tuesday: Fusing 8” SDR17 HDPE pipe behind hotel. Note PE cap and short pieces of SDR11, for use as initial fuse after cap.
  • 3. RIVERSIDE, CALIFORNIA: AUGUST 2005 3 A close shave to make first fusion. Thicker walled pipe (SDR11) makes a stronger leading section to follow bursting head.
  • 4. RIVERSIDE, CALIFORNIA: AUGUST 2005 4 Entry point (at left) roughly 7 feet deep with angled access. Note temporary connections for residual flow.
  • 5. RIVERSIDE, CALIFORNIA: AUGUST 2005 5 Wednesday: Rescue Rooter confers with hotel management. Another active tie-in is discovered upstream from entry point, and further excavation is required near loading dock to uncover that connection. Pull is postponed until the following morning.
  • 6. RIVERSIDE, CALIFORNIA: AUGUST 2005 6 6-inch steel I-beams are driven almost 4 feet into the ground to brace against pull at exit pit (4’ x 6’ x 6’ deep in hallway).
  • 7. RIVERSIDE, CALIFORNIA: AUGUST 2005 7 Wednesday afternoon: Work inside hallway precludes the use of large power equipment.
  • 8. RIVERSIDE, CALIFORNIA: AUGUST 2005 8 Thursday morning: Water supply is shut off. Heavily corroded and restricted cast iron pipe at entry point, near property line.
  • 9. RIVERSIDE, CALIFORNIA: AUGUST 2005 9 Attaching cable and bursting head to fused pipe.
  • 10. RIVERSIDE, CALIFORNIA: AUGUST 2005 10 Head driver (front) screws onto 2” diameter threaded cable stud, and pipe driver threads on behind.
  • 11. RIVERSIDE, CALIFORNIA: AUGUST 2005 11 Bursting head, or mole, slides onto assembly, and is ready to go.
  • 12. RIVERSIDE, CALIFORNIA: AUGUST 2005 12 Shortly after entry, Thursday afternoon. 40 feet later, just inside the building foundation behind the loading dock, the bursting head is trapped by a combination of no-hub couplings and a thick external sleeve of PVC plastic.
  • 13. RIVERSIDE, CALIFORNIA: AUGUST 2005 13 Friday morning: After excavating to free the bursting head, shoring was reset and pull was resumed. The 12+ hour delay in resuming water and sewer service required hotel management to relocate numerous guests, including an entire wedding party.
  • 14. RIVERSIDE, CALIFORNIA: AUGUST 2005 14 Friday afternoon, viewed from Market Street. About 130’ of new pipe is in the ground. After another 30 feet or so, the bursting head will show itself at the other end.
  • 15. RIVERSIDE, CALIFORNIA: AUGUST 2005 15 Not without a fight, however. Another PVC sleeve is encountered about 25’ from the finish. This requires another excavation inside the hotel, at a wall separating lobby rest rooms from an adjacent hallway.
  • 16. RIVERSIDE, CALIFORNIA: AUGUST 2005 16 Ram, pulley base, and plate are hoisted together out of the pulling hole to clear the way for reinforcement of the shoring.
  • 17. RIVERSIDE, CALIFORNIA: AUGUST 2005 17 After the second impasse, the entire pulling support structure is failing. The left I-beam is noticeably bowed and shifted, and the right I-beam is buckled and twisted out of place altogether. 6” x 6” wood beams spanning the steel were crushed.
  • 18. RIVERSIDE, CALIFORNIA: AUGUST 2005 18 ARS Rescue Rooter crew digs up the mole for the second time, then cuts away the PVC sleeve and collected couplings. PVC often does not break apart like cast iron, clay, or concrete pipe, but rather folds and expands. Couplings around the bursting head within such a sleeve can create a long and corrugated anchor, which in this case withstood about 45 tons of pulling force.
  • 19. RIVERSIDE, CALIFORNIA: AUGUST 2005 19 11:05 PM Friday, and the head has arrived! A second pair of 6” I-beams was driven in next to the failing ones, and they were starting to shift after only 25’ of pulling. The last leg of the pull still required almost 40 tons of force and caused some pipe stretching, even though the entire run contained no bends other than the entry.
  • 20. RIVERSIDE, CALIFORNIA: AUGUST 2005 20 Pulling assembly and cribbing removed. Note garden hose, used to put water down the line when pulling upstream. This re- duces friction against the bursting head and softens surrounding earth, often resulting in significantly lower hydraulic pressures needed to burst existing pipe. In this case, water was less effective against couplings and foundation sleeves embedded in sand.
  • 21. RIVERSIDE, CALIFORNIA: AUGUST 2005 21 Head slides off core assembly to facilitate cutting of pipe. This design also simplifies removal of the mole in restricted areas such as manholes and narrow culverts.
  • 22. RIVERSIDE, CALIFORNIA: AUGUST 2005 22 Saturday Morning: Shortly after Rescue Rooter finishes connections and sewer is operational, steel beams are cut off at ground level with an acetylene torch and removed.
  • 23. RIVERSIDE, CALIFORNIA: AUGUST 2005 23 Marriott General Manager Tom Donahue and TRIC Tools General Manager Myles O’Dwyer rejoice in the hard-earned (and not so simple) pleasure of running water and working drains!