The main points of the micro tunneling techniques is the correct pipe deviation in the ground. Especially suitable for large and medium-sized trenchless laying of pipe diameter. Has economic, efficient, the comprehensive function of protecting the environment. The advantages of this technology are: no excavation surface; Do not demolition, does not destroy the ground buildings; Don’t harm the environment; Does not affect the pipeline section of the differential deformation; To save time, efficient, safe, low comprehensive cost.

The micro tunneling techniques in the coastal economically developed areas in China are widely used in urban underground water supply and drainage pipelines, gas pipelines, communication cable, etc. Various of trenchless pipe laying. It can through the highway, railway, bridge, mountains, rivers, channel and any building on the ground. Construction, adopting the technique can save a lot of requisition of cost, reduce the environmental pollution and road congestion, with remarkable economic and social benefits.

Micro tunneling techniques (Pipe jacking construction) is after shield construction and developed a kind of underground pipeline construction method, it does not require the excavation surface, and the ability to cross roads, railways, rivers, ground buildings, underground structures, and all kinds of underground pipeline, etc. Pipe jacking construction by means of the main roof oil tank and pipeline between relay between the thrust, the tool or machine tube from work well through the soil has been pushed to the receiving shaft hoist. At the same time, also took the following tool tube or pipe buried after the machine between two Wells, in order to realize the trenchless construction method of underground pipeline laying.