Page 503 - Trenchless Technology Piping Installation and Inspection

Index 453

rigid pipes (Cont.): sample specifications for CIPP
examples of, 123, 123t clean-up/payment, 91
failure causes summary in, 132 inspection, 90–91
failure modes in, 133–134, 134f, 135f, installation, 89–90
136, 136f installation responsibilities for
vs. flexible, 122–124, 123f, 126, 126f incidental items, 88–89
load transfer and, 123–124, 123f, 126, intent of, 83
126f, 129–130, 129f materials, 85–86
performance limits for, 133 product/manufacturer/installer
shear failure in, 136, 136f qualification requirements, 84–85
soil arching effect and, 127–128, referenced documents, 83–84
128f reinstatement of branch connections,
types of, 141–153 90
VCP, 149–153 structural requirements, 86–87
rig/mud circulation/recycling testing requirements, 87–88
equipment, HDD and, 343 sands, classification of, 125t
ring deflection, 139f scooter, 100t
ring flexure, 133–134, 134f screening of alternatives, 49
risk assessment seam tape, defective, 305t
new installation and, 40–41 selection considerations, 140–141
replacement design considerations, service connections, 261–262, 261f, 262f
245–247 setback
safety and, 382–384, 383t, 388–389 distance, 210–211, 211f
Risk Assessment Plan, 382–384, 383t implications, 212
rodding, 100t settlement
rolled and welded pipe, 177 monitoring, 358–359
Rome, 1 potential, 371, 377–378
Russell, James, 1 sewer strike, 391
sewers
safety considerations, 265 CIPP and, 278, 279t
bits/reamer, 343 defect codes used in, 280, 280t
color codes, utility, and, 385, 386t shafts
communication, 390–391 driving/receiving, 357–358
contingency plans, 390 safety and, 384–387
design phase regarding, 380–381 spacing of, 386–387
equipment operator training, shape change, pipe, 286t
391–392 shear failure, 136, 136f
experience, 392 shoring, 254–255
formal training and, 379–380 shotcrete, 93
hazard assessment, 387–388 silts, classification of, 125t
industry standards and, 380 site visit, 365–366
installation depths, 31, 34t SL. See sliplining
job site preparation, 385–386 sliplining (SL), 52f, 52t, 53, 54t–55t, 58f.
new installation methods and, See also modified sliplining
39–42, 42f slug method, 101–102
open-trench, 379, 380t slurry machine, 12, 14f
OSHAct and, 379 slurry spoil removal, MT, 320
overview of, 363–365 soft spot in liner, 303t
planning and, 381–384, 383t soft swab pigging, 100t
pull strength and, 269t soil removal, PTMT, 327
risk assessment, 388–389 soils. See also pipe-soil interaction;
Risk Assessment Plan and, 382–384, pipe-soil system
383t arching effect of, 127–128, 128f
shaft/pit space planning, 386–387 classification of, 124, 125t
shafts/pits, working, 384–385 construction and, 124, 126
spray-on coatings/linings, 103, 105f open-cut design and, 119–120
tolerance zone, 385–386, 386f removal/excavation modes, 35t
utility strike, 391 replacement design considerations
sag, excessive, 265–266 and, 243–245, 244f