摘要
针对太原典型地质环境,运用PLAXIS3D建立考虑渗流效应与不考虑渗流效应的数值模型,将这两者的模拟结果与实际监测数据进行对比,验证考虑渗流效应模型的可靠性,并在此基础上展开地铁深基坑的变形特性研究。研究结果表明,考虑渗流效应的围护桩水平位移比不考虑渗流效应的要大,并且与实际监测数据更接近;增大围护桩直径能有效减小围护桩的最大水平位移;增大钢支撑壁厚,能较有效减小围护桩最大水平位移。
Aiming at the typical geological environment of Taiyuan,PLAXIS3D was used to establish numerical models that consider seepage effects and those that do not consider seepage effects.The simulation results of the two were compared with actual monitoring data to verify the reliability of the model that considers seepage effects.On this basis,the deformation characteristics of subway deep foundation pits were studied.The research results show that the horizontal displacement of the retaining pile considering the seepage effect is greater than that of the retaining pile without considering the seepage effect,and is closer to the actual monitoring data;increasing the diameter of the retaining pile can effectively reduce the maximum horizontal displacement of the retaining pile;increasing the thickness of the steel support wall can effectively reduce the maximum horizontal displacement of the retaining pile.
出处
《科技创新与应用》
2025年第8期68-72,共5页
Technology Innovation and Application
关键词
渗流效应
深基坑
变形特性
围护桩
水平位移
seepage effect
deep foundation pit
deformation characteristics
retaining pile
horizontal displacement
