基坑伺服轴力钢支撑系统轴力加载策略研究

Study on Axial Force Loading Strategy of Servo Axial Force Steel Support System for Foundation Pit

基于基坑开挖的时空效应,提出了一种基坑伺服轴力钢支撑系统的轴力施加策略,并以工程实例介绍了实施技术路线。根据理论计算和实测数据结果显示,这种轴力施加策略符合基坑设计理论,易于操作,可有效控制基坑变形,从而减小基坑开挖过程对敏感建构筑物的扰动。

Based on the space-time effect of foundation pit excavation,this paper puts forward a axial force loading strategy of servo axial force steel support system for foundation pit,and introduces the technical route of implementation by the engineering cases.Based on the theoretical calculation and measured data,the result shows that this kind of axial force loading strategy conforms to the design theory of foundation pit,is easy for operation and can effectively control the deformation of foundation pit so as to decrease the disturbance to the sensitive buildings and structures in the excavation process of foundation pit.