基坑开挖宽度对坑底变形的影响分析

结合某基坑工程实践，采用有限元分析软件Plaxis，选用HardeningSoilModel模拟土体，针对不同基坑开挖宽度，对基坑开挖引起的地表变形、坑底变形、围护结构变形等进行了研究，从而确定在不同基坑开挖宽度时，开挖对周边环境的影响范围，进而可以明确相应的处理范围。

Analysis of the bottom deformation under different width of foundation pit

Combined with a foundation pit engineering practice, this paper analyses the deformation of the surface around, the bottom of foundation pit and supporting structure, using the finite analysis tools Plaxis, choosing the Hardening Soil Model to simulate the soil, and decide the environment influence brought by excavation, and further the range we need to handle under different width of foundation pit.