地铁车站基坑开挖对周围建筑物影响优化分析

Optimal analysis on the impact of subway station foundation excavation upon surrounding buildings

结合工程实例,对其中一个风险源进行MIDAS/GTS数值模拟,分析了基坑开挖对周边环境产生的附加变形,根据分析结果加强了对基坑周围建筑物的保护措施,并选取部分实测结果与模拟结果进行对比分析,结果表明:二者数据吻合较好,数值模拟采用的计算模型、参数合理,能较真实的反映基坑开挖过程的实际状态。

Combining with the engineering example, the paper carries out MIDAS/GTS numerical simulation for one risk source, analyzes additional deformation of foundation excavation upon surrounding environment. According to analysis results, it strengthens protective measures of surrounding buildings, compares partial measurement results to simulation results, Results show that： the two data are coordinated, the calculation model and parameters are rational, which can reflects actual foundation excavation process.