土侧压力作用下地连墙侧向位移经验函数

Study on experience function of lateral displacement of underground continuous wall under action of soil lateral pressure

在基坑工程中,基坑支护是一个很重要的研究课题,支护结构(地下连续墙)在土侧压力作用下会产生侧向位移,这种位移的计算对基坑工程意义重大.在目前的方法中,基本以预埋测试盒的方法来观察支护结构的侧向变形,该方法的缺点是不能得知任意一个深度的支护结构的侧移.在以支护结构是均匀的,连续的这一假设的前提下,利用曲线拟合的方法和监测中已知的数据来探究地下连续墙在土侧压力作用下侧向变形随深度变化的经验函数,从而可以知道任意一点的侧向位移.这种方法与函数对基坑工程的意义重大.

In the foundation pit engineering, foundation pit supporting is a very important research subject.Among them, the supporting structure （underground continuous wall） in the soil under the action of lateral pressure will produce lateral displacement.The displacement calculation of foundation pit engineering is of great significance. In the present method, the basic method to embed the checkerboard to observe the lateral deformation of retaining structure, the shortcomings of the method is not known any lateral depth of supporting structure. This paper studied on the supporting structure was uniform, continuous under the premise of this assumption, by using the method of curve fitting and monitoring of the known data to explore underground continuous wall under the action of soil lateral pressure of lateral deformation function changing with depth of experience, in order to know the lateral displacement of any point. This method with the function of foundation pit engineering of enormous significance.