Page 498 - Trenchless Technology Piping Installation and Inspection
P. 498
448 Inde x
lining tubes, 298 Maxi-HDD (Cont.):
load calculations drilling rig, 193
pipe collapse conditions, 272–275, drill-rod radius of curvature,
273t 192–193
pulling load planning guide, external coating, 199, 199f
271–272 inspection/construction monitoring,
pulling load theoretical 201–203
considerations, 267–271 installation loads, 197–198
load influence coefficients, 72t manuals/guides for, 227
load transfer operating (service) loads, 198–199
flexible pipes and, 130–131, 131f operations, 188–191, 190f, 191f
flexible vs. rigid pipes and, 123–124, pilot borehole phase, 188–189, 190f
123f, 126, 126f pipe collapse and, 219
pipe-soil interaction and, 126, 126f pipe load calculations, 217–219,
rigid pipes and, 129–130, 129f 217f
TEB test and, 129, 129f pipeline fabrication, 187f, 193
localized repairs, 56t, 62, 62f preream phase, 189, 190f
locating/tracking, pipe product pipe specifications,
CPJ, 311 196–199
HAB, 335 pull force and, 217–219, 217f, 219f
HDD, 348 pullback phase, 189, 191, 191f
longitudinal flexure, 133–134, purposes of using, 186, 186f
134f, 135f site investigation requirements,
longitudinal tensile failure, 139, 140f 186–188, 187f
lubrication fluids specifications/drawings, 199–200
HAB and, 335 subsurface survey, 187–188
MT and, 320 surface survey, 187
pipe bursting and, 355 metallic pipes
pipe jacking and, 311 ductile iron, 171–176, 178
pipe ramming and, 339 overview of, 171
PTMT and, 327, 328 steel, 176–182
safe handling of, 381 microtunneling (MT). See also pilot-tube
lump sum contracts, 200 microtunneling
lumps, 302t advantages/limitations of, 38
allowable forces in, 318
machine operation, safe, 381 applications, 33t
manhole connections, 257, 258f, boring machine, 312, 315f
259f, 260 construction and, 320–323
manuals/guides for HDD, 227 cutting heads, 312, 314, 316f
manufacturing inspection guide, 324f
AC, 148–149 introduction to, 312–317
concrete pipe, 141–142 jacking force calculation, 321,
ductile iron pipe, 173–174 321f–322f, 323
GRP, 168–169 jacking shaft in, 312, 314f
PE, 163–164, 164f main components of, 22, 32t
PVC, 155–156, 155f measuring pipe deformation in,
steel pipe, 177 317, 317f
VCP, 150 overview of, 20, 22
mapping of utilities, 389–390 pipe materials, 317–320
Marston, Anson, 2, 126, 127 pipe requirements, 318–319
Marston load, 2 pipe transportation/storage, 319
mastic filled tongue and groove joints, pipe/soil type and, 35t
145, 146t planning, 315–317
material change, pipe, 286t protective coatings and, 320
Maxi-HDD quality assurance/control, 314–315,
contractual considerations, 200–201 317
depth of cover, 192 schematics of, 22f, 316f
drilled path design, 191–193 sequence of construction in, 24f
drilling fluids, 193–196, 195f, 196f standards regarding, 23

