Rectangular pipe jacking machine is used in the construction of an underpass project in Wuhan,which has the characteristics of large section,small spacing,shallow soil cover,subway tunnel,urban main road,and multiple pipe jacking parallel construction.Through the establishment of numerical model,the rational sequence and construction pa-rameters of pipe jacking are discussed,and the influence of pipe jacking construction on the surrounding environment is analyzed.The results show that when the construction sequence of pipejacking is 2,3-1,4 and the construction parame-ter soil bin pressure is 120 kPa,the deformation of the surrounding structures is less than the control value.
rectangular pipe jackingnumerical simulationsubway tunnelurban main roadjacking se-quenceconstruction parameter
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