基于FLAC3D对某双隧道地压及围岩破坏分析

ANALYSIS OF GROUND PRESSURE AND SURROUNDING ROCK FAILURE OF A DOUBLE TUNNEL BASED ON FLAC 3D

运用FLAC3D数值模拟软件,依据TSP隧道地震勘探法检测得到的某双隧道的地质条件和围岩各项参数,对开挖过程中的某双隧道进行模拟,从而得出在开挖阶段应力、位移和塑性的变化规律。

In this paper, the author uses FLAC3D numerical simulation software to simulate the excavation process of tunnel, based on the various geological basis parameters of surrounding rock of a double tunnel from tun-nel seismic prediction and according to the Mohr-Coulomb theorem. The conclusions are drawn regarding the stress, the displacement and the plastic deformation in the excavation process.