Published October 7, 1993
Reference - 288 Pages
ISBN 9780751401028 - CAT# RU35798
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Covers development of trenchless technology; pipejacking and microtunnelling methods equipment: shields and tunnel boring machines; pipejacking: line, drive pit, top side; equipment: microtunnelling; design concepts.
Part 1 Development of trenchless technology: recent growth of trenchless technology - categories of trenchless technology; defining pipejacking and microtunnelling - pipejacking, microtunnelling. a historical perspective - pipejacking, microtunnelling. Part 2 Pipejacking and microtunnelling methods: elements of pipe jacking - the face, the line, the jacking pit, top side - surface equipment. applications of pipejacking and microtunnelling - line installation, installation of ducts, crossings, pipe excavation techniques; advantages and limitations of pipejacking and microtunnelling - working in a wide range of soil conditions, minimizing damage to property and existing services, minimizing disruption to the public and the environment, safe working for operatives and public safety installing to owner's satisfaction, providing a cost-effective solution. Part 3 Equipment - shields and tunnel boring machines: introduction, classes of equipment - conventional (open) shields, compressed-air shields, Auger-type shields, pressure chamber shields, design and construction of shields. spoil cutting - manual excavation, partially-mechanized excavation, rotary cutting arms and sheels, full face machines, crushing heads, rock heads; shield location, guidance and monitoring - location, guidance, monitoring additional information. Part 4 Pipejacking - line, drive pit, top side: spoil removal - wheeled systems, belt and chain conveyors, positive displacement pumps, pumped slurry, screw conveyors, vacuum extraction. jacking equipment - jacking rigs, intermediate jacking stations (IJSs); top side - surface equipment - spoil handling and disposal, pipe and other material handling, power supplies - air, hydraulic and electric. Part 5 Equipment - microtunnelling: classifying microtunnelling equipment. pilot-bore microtunnelling - stage one, the pilot bore, stage two, enlarging the bore; Auger-bore microtunnelling - drive types, head variations, line installation, equipment manufacturers and suppliers; pressure balance microtunnelling equipment - water balance machines, Bentonite slurry machines, earth pressure balance machines, manufacturers and suppliers; displacement methods of microtunnelling; microtunnellers for on-line replacement; microtunnellers for house connections; site equipment. Part 6 Design concepts: role of client, engineer and contractor - traditional approaches to design, global trends, the changing nature of work, integrated design. conceptual design for sewer installation - line installation - alignment, gradient and depth, subsurface considerations, construction considerations, traffic, social and environmental considerations; location of crossings - planning and design, investigation, crossing waterways.