Pipe jacking is a specialist tunnelling method for installing underground pipelines with minimum surface disruption. It was first introduced into the United Kingdom in the early sixties and was used as an alternative tunnelling method to small segmental tunnels and timber headings, for providing short crossings under obstacles such as roads, railways, rivers and canals. The technique developed and it became practical to use the method for longer tunnel drives, and so pipe jacking found a market in the sewer and surface water sectors. It is now used in the construction of gas and water mains, oil pipelines, electricity and telecommunications installations, culverts and subways.
The Pipe jacking Association (PJA) has been established for over 30 years and represents the leading contractors, pipe suppliers and machine manufacturers in the United Kingdom pipe jacking and microtunnelling industry. DCT Civil Engineering is an active member of the PJA, and has earned its reputation over 30 years, undertaking tunnelling and pipe jacking, predominantly in the water industry.
John Hensman, Development Director for DCT, will provide a basic introduction to pipe jacking and some of its benefits. Prior to joining DCT John spent 13 years in a water industry client environment working for Severn Trent Water, Haswell Consulting Engineers and Broxtowe Borough Council. Lloyd Williams is a product of DCT’s graduate scheme and joined the Company following his graduation from Manchester University in 2005. Lloyd will provide more technical information and discuss issues arising on a particular pipe jacking example.
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