Simulation numerical analysis on stability of foundation pit under the conditions of heavy rainfall

Abstract

In view of the influence of complex condition on the basic of the accident and caused huge losses, this paper uses the FLAC3D numerical simulation analysis on the foundation stability under intensive rainfall simulation software, to provide a basis for site selection of reasonable support method. Research shows that: in the foundation pit of -3m, -5.8m, -11m position with bolting after foundation pit slope stress, displacement evolution rules, to determine the depth of pit in the -9m position, -5.8m anchor reinforcement of foundation pit slope state, the lateral displacement is smallest, foundation pit reinforcement effect is the best, in this state, the slope lateral displacement amounts were reduced to design supporting condition of the 44.8%, 40.55%, 38.74%, 39.61%, can meet the requirements of safety and stability