摘要
北京地铁西四车站暗挖段,地处闹市,地面交通繁忙,地质条件复杂,施工难度较大,因此在具体施工前对其施工工法和洞室稳定性进行细致研究是十分必要的。本文采用有限差分程序FLAC3D对施工方案中设计的管棚、注浆、喷层等支护措施和支护效果进行数值模拟分析,对具体工法做出了定量的评价,对后期工程的施工有很大的参考价值和一定的指导作用。
The Xisi subway station in Beijing is located in downtown area with busy ground transportation, and underground pipes network is densely distributed, so that tremendous difficulties and risks appear in construction. In light of these characteristics, FLAC^3D is adopted to analyze the stability of surrounding soil during the construction. According to the variation of displacements, stresses and distributions of the modules area, we should pay attention to the shoring of side-hole, reinforcement of the soil at the bottom, and so on. These conclusions can be used for reference to the construction of similar projects.
出处
《建筑科学》
北大核心
2007年第11期20-25,共6页
Building Science
关键词
浅埋暗挖
中隔壁法
有限差分法
FLAC^3D
shallow embedment and concealed dredging
CD methods
finite difference analysis
FLAC^3D
