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为了得到并应用CRD施工法对桥梁桩基与地铁的住移分布与应力,本文主要对地铁在邻近高架桥的施工进行了数值的模拟计算,分析了地铁在施工的过程中所产生的位移场与应力场,对地铁施工的前期采取了一些加固的措施,并且在施工的过程中对桥梁与地铁进行了严格地监控。根据模拟数值的计算并在前期采取了合理的加固措施,使得地铁在施工的过程中地轶顶部与桥基的土层位移基本控制在了5mm之内,在地轶施工的过程中保证了高架桥的安全。
In order to obtain and apply the CRD construction method to the distribution of displacement and stress of bridge pile foundation and subway, this paper mainly carries out the numerical simulation calculation of the construction of the subway near the viaduct, analyzes the displacement field of the subway in the process of construction and Stress field, some measures were taken to reinforce the early stage of subway construction, and the bridge and subway were strictly monitored during the construction. According to the calculation of the simulated values and the reasonable reinforcement measures taken in the early stage, the displacement of the soil in the top of the subway and the abutment during the construction process is basically controlled within 5 mm, which ensures that the viaduct Security.