黄土窑洞在水作用下的变形过程机理研究

Study on deformation mechanism of loess cave under water action

在实地调查和模拟黄土窑洞在不同黄土含水率条件下各主要部位应力与位移发展特征的基础上,对黄土窑洞的敏感部位及其变形破坏发展过程进行了研究,并将黄土窑洞的变形发展过程归纳为四个阶段,得出黄土窑洞抗力主要来源于黄土自身结构和窑洞拱形结构提供的抗力,并在此基础上提出经过验证的经济可行的防护措施。

Based on field investigations and simulations of stress and displacement characteristics of loess cave dwelling under different water content conditions of loess,this paper studies the sensitive parts of loess cave dwelling and their deformation and destruction processes.The process of the deformation of loess caves is summarized into four stages.It is concluded that the resistance of the loess cave dwelling comes mainly from the loess'own structure and the resistance provided by the arch structure of the cave.Finally,the economically feasible protective measures are put forward.