Application and Improvement of Pulling Pipe Jacking Technology in Weak Soil Layer
As a new technology improved from the directional drilling traction technology,the pulling pipe jacking technology has the advantages of small construction area,small disturbance to surrounding buildings and small damage to the existing road pavements,and has the great advantages in the construction of urban pipe network.However,when applied in soft soil layers such as deep silt layer or liquefaction layer,it will cause a series of problems By analyzing the causes of these problems,the corresponding improvement ideas of the pipe jacking technology are proposed,and are applied in the practical projects.The result shows that the proposed improvement method is effective and feasible,which can provide the guidance for this technology to be applied in the weak soil layer later.
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