To install a pipeline using pipe jacking, thrust and reception pits are constructed at manhole positions, their dimensions tailored to specific project needs. A thrust wall provides resistance for jacking, sometimes requiring special arrangements in poor ground conditions. A thrust ring distributes jacking forces around the pipe circumference, ensuring uniform pressure, while reception pits facilitate shield removal at drive completion.
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Pipe Jacking
Known as microtunnelling for smaller diameters
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PIPE JACKING
Pipe jacking, also known as microtunnelling for smaller diameters, involves installing underground pipelines, ducts, and culverts. Hydraulic jacks push pipes through the ground behind a shield while excavation occurs within. This method yields a structurally sound, watertight pipeline as the tunnel is created, offering flexibility and efficiency.
Individual pipe jack lengths are practically limitless, although engineering and economic factors may impose restrictions. Drives of several hundred meters, either straight or curved, are achievable with various mechanical and remote control excavation systems. Construction tolerances match those of traditional tunneling methods, with less overbreak and improved ground support.
PIPE JACKING - MICROTUNNELING
Pipe Jacking
Microtunnelling – originally used to describe the construction of fully automated non man entry pipe jacked tunnels in smaller diameters.
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