摘要
岩溶塌陷的形成是多种因素共同作用的结果,具有很强的复杂性。该文利用极限平衡理论,提出合理的假设,并对岩溶洞穴的塌落体进行受力分析,确定致塌力和抗塌力,建立岩溶洞穴力学稳定性分析模型。当安全系数K时,塌落坑失稳塌陷;=1时,塌陷体处于极限平衡状态;>1时,塌落坑稳定,以此对尚未发生岩溶塌陷的洞穴进行预测、预警。
The formation of karst collapse is the result of a variety of factors,which is very complex.In this paper,the limit equilibrium theory is used to make reasonable assumptions,and the stress analysis of the collapse body of karst caves is carried out to determine the collapse force and the anti-collapse force,and the mechanical stability analysis model of karst caves is established.When the safety factor K<1,the collapse of the collapse of collapse collapse;K=1,the collapse of the body in the limit equilibrium state;K>1,the collapse of the pit stability,in order to have no karst collapse of the cave to predict.
作者
周佺
Zhou Quan(Chong qing Jiaotong University, Chongqing, 400060, China)
出处
《科技创新导报》
2017年第12期92-94,共3页
Science and Technology Innovation Herald
关键词
岩溶塌陷
极限平衡理论
稳定性
安全系数
塌落体
Karst collapse
Limit equilibrium theory
Stability
Safety factor
Collapse body
