Pipejacking & Microtunnelling

ISBN-13: 9780751401028 / Angielski / Miękka / 1993 / 288 str.

J. C. Thomson; Jr. James C. Thomson

Opis

The installation of new pipelines and sewers and the replacement and renovation of these structures without extensive surface excavation has been one of the major advances in engineering over the last ten years. Sophisticated items of machinery and instrumentation have been developed, and have been tried and tested in the most diverse and difficult ground conditions with tremendous success. Pipejacking and microtunnelling techniques offer considerable savings over conventional trenching methods and this, combined with the greatly reduced surface disturbance, is leading to an acceleration in the use of trenchless technology. This book provides a comprehensive and expert insight into the techniques of pipejacking and microtunnelling - the cornerstones of trenchless technology. It is written by a pioneer in the field who is internationally respected for his work in developing this highly practical and cost-effective engineering method. and geotechnical engineering.

Spis treści

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.

O autorze

James Thomson