深圳某泵站管道开挖对沿江高速桥梁的影响分析

Impact of the Excavation of Pumping Station Pipeline on the Bridge Foundations of Yanjiang Expressway in Shenzhen

工程开挖对邻近桥梁影响问题越来越频繁出现,对深圳某泵站管道的开挖对附近桥梁的影响进行了数值分析,按照工程建设顺序从原始地应力到最后管道开挖进行了全过程模拟,获得了土体及桥梁结构的应力、位移场变化规律,结合计算结果及相关规范对桥梁桩基安全进行了评估,为后续施工图设计提供了依据和建议,亦为该类问题的分析提供了可借鉴的方法。

The impact of engineering excavation on the adjacent foundations is more and more frequently encountered in the construction.In this paper,the influence of the pipeline excavation for a pumping station in Shenzhen on the nearby bridge foundations is numerically analyzed.The process of the excavation is simulated from the initial ground stress state to the final excavation and the stresses in soil as well as in the bridge foundations are obtained.The safety of the pile bridge foundation is evaluated in accordance with the current code and the results are satisfactory.