SAFETY EVALUATION OF THE CROSSING PROJECT OF MUNICIPAL PIPELINES UNDER SUBWAY STRUCTURE BASED ON NUMERICAL SIMULATION

摘要

In order to maintain the operation of existing subways and the safety of underground structure, strata deformation caused by construction surrounding existing subways need to be strictly controlled. Numerical simulation is most frequently used method in the safety evaluation of existing subway structure under construction disturbance. Finite Element Method (FEM) is utilized here to simulate the whole process of the crossing of municipal pipelines under subway structure. A real project is also used to examine the feasibility of numerical simulation method in safety evaluation in this area.