地铁车站深基坑开挖支撑方案的仿真模拟

Numerical Simulation and Optimization for the Construction Plan of Deep Foundation Pit in Subway Station

对深圳某地铁车站深基坑施工中可能采用的两种开挖支撑方案的施工过程进行了仿真模拟,研究分析了两种方案的基坑围护结构、支撑体系及周围地层的受力变形规律,提出了施工优化建议。

The full construction process of the two excavation plans that may be used in practice was simulated using a two-dimensional finite el- ement program. The bearing force and displacement of the exterior- protected construction, braces and the soil masses were fully analyzed. Some proposals were presented based on the comparison of the nu- merical results of the two excavation plans. This work will give some useful references to the improvement of the design and construction level in deep pits projects.