观澜河顶管穿越工程流固耦合研究

Study on fluid-structure interaction in the Guanlan River pipe jacking crossing project

基于岩体劣化本构模型,利用FLAC3D对观澜河顶管穿越工程进行数值模拟分析,计算结果表明:围岩与顶管的位移和应力随水头压力增加而显著增加,并分析了竖井与顶管施工对地表沉降的影响,对于工程的施工与维护具有重要意义。

In this essay,we will use FLAC3D to perform a numerical simulation analysis against the Guanlan River pipe jacking crossing project, based on the rock mass deterioration constitutive model. The calculation result shows that along with the increasing of the head pressure,the dis-placement and stress of the surrounding rock and jacking pipe also increases significantly. This research also analyzes how the vertical shaft and pipe-jacking construction will affect the ground settlement,so it bears great importance on the construction and maintenance of the project.