论文部分内容阅读
一、前言地下结构是防护工程的主要组成部分。其动力计算方法,目前在国内主要采用“等效静载法”和“位移法”。在这些方法中均假设作用在结构上的动荷载峰值为一定值,即不考虑结构变形速度对作用在其上的动荷载性质的影响;同时采用温克尔模型来描述周围介质对结构的作用关系,即在动荷载作用下周围介质对结构的约束反力 P
I. Introduction The underground structure is the main component of the protection project. Its dynamic calculation method is currently mainly used in the country “equivalent static load method” and “displacement method.” In these methods, it is assumed that the peak value of the dynamic load acting on the structure is a certain value, that is, the influence of the structural deformation speed on the dynamic load acting on it is not considered; meanwhile, the Winkel model is used to describe the effect of the surrounding medium on the structure. The relationship, that is, the constrained reaction of the surrounding medium to the structure under the action of a dynamic load.