本文主要以上海某号线地铁站施工对邻近短桩桥基加固效果进行观察,通过制定不同的桥基加固方法对施工期间三维动态相关数值进行模拟,并对施工期间桥基受力性态、变形、桩土相互作用加以分析,并比较测量结果和部分计算结果。根据部分计算结果和测量结果加以比较。根据研究来分析桩基托换能够降低施工过程中桥基出现沉降现象的几率,利用地面支撑来减少承载、对短桩底部实施局部注浆加固,更好地降低施工期间桥基沉降的现象。 In this paper, we mainly observe the reinforcement effect of the adjacent short-pile abutment by a subway station construction in Shanghai. Through simulating the three-dimensional dynamic correlation values ​​during construction, different bridge abutment reinforcement methods are developed. Deformation, pile-soil interaction to be analyzed, and compare the measurement results and part of the calculation results. According to some calculations and measurement results to be compared. According to the research, the analysis of pile foundation underpinning can reduce the chance of settlement of bridge foundation during construction, reduce the bearing by using ground support, and partially grout reinforcement the bottom of short pile, so as to reduce the settlement of bridge foundation during construction.