Introduction to modern non-excavation pipe laying technology Modern non-excavation pipe laying technology refers to the use of geotechnical guidance, directional drilling and other means to lay, replace or repair various underground pipelines without digging trenches. technology.
The technology has significant social and economic benefits, especially in areas where excavation operations cannot be carried out, such as crossing roads, railways, buildings, rivers, historic sites, downtown areas, crops and vegetation reserves. This technology is now widely used in engineering departments such as gas, telecommunications and power.
Modern non-excavation underground pipeline construction methods have appeared in large numbers since the 1970s, including: horizontally guided drilling, horizontal directional drilling, horizontally controlled auger, impact spear, pipe hammer, micro-tracking, Old pipe replacement and repair, pipe jacking machine, etc.
Non-excavation technology not only reduces road excavation, reduces construction costs and solves some problems that cannot be constructed in traditional excavation, but also repairs old pipelines and difficult installations; in West-East Gas Transmission and Guangdong LNG Projects Large-scale pipeline network laying; natural gas as a universal use of clean and environmentally friendly energy, in the natural gas replacement project; to ensure that the supply of gas to customers does not significantly interrupt, and when installing zone pressure regulating valves and pipelines; After the completion of the network, if you need to update the old gas pipeline, it has a considerable advantage.
The non-excavation technology replaces the civil construction (the trenching method), which not only advances the gas construction technology, but also reflects the rapid development of construction technology and technological modernization.
Non-excavation works | Non-excavation construction
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