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车站主体暗挖大断面穿越建构筑物时,会对建构筑物产生一定变形影响,能否合理控制建筑的水平位移及沉降至关重要,直接决定车站采用何种工法。论文以北京地铁某车站为例,通过车站与桥梁的相互位置关系及地层等特点,提出洞柱法[1]施工和洞桩法[1]施工穿越桥梁的设计方案,并结合经验及理论分析计算,得出在该种情况下洞柱法方案更具有优越性。该方案可大量推广应用于类似的设计及施工。
When the main body of a station passes through the building with a large cross-section, it will have a certain deformation effect on the building structure. Whether the horizontal displacement and settlement of the building can be reasonably controlled is crucial and directly determines the method adopted at the station. Taking a Beijing subway station as an example, this paper proposes the design scheme of the construction crossing bridge through the method of the hole column method [1] and the bridge through the mutual relationship between station and bridge and the strata and so on. Based on experience and theoretical analysis Calculated, concluded that in this case the method of more advantages of the hole column method. The program can be widely promoted for similar design and construction.