地铁新线穿越既有线车站的施工方案优化设计

在地铁车站施工中,新建线路穿越既有线路车站是不可避免的问题,为保障施工影响范围内地下建筑物的安全,以及围岩与结构的稳定,针对具体工程,对需要采取措施的近接施工,采用力学仿真分析,总结出合理的设计施工方案。在新建车站施工过程中,通过分析优化设计既有车站的应力、变形规律,而获得相应的支护措施和最优的施工方案。

Construction Plan Optimization of Metro Station of the New Line Cross the Existing Station

The question that the new metro line cross the existing station is inevitable in metro station construction. The whole construction process of the new line crossing the existing station is simulated by numerical computation in this paper to ensure underground building safety and surrounding rock stability in construction influence range. According to the stress and deformation law of existing station,corresponding supporting menthods are used and the optimum construction plan is summarized.