岩溶陷落柱形成的岩体力学条件  

THE ROCK MECHANICS CONDITIONS FORMING KARSTIC COLLAPSE COLUMN

作　　者：杨为民[1] 周治安[1] 

机构地区：[1]淮南矿业学院资源与环境工程系

出　　处：《煤田地质与勘探》1997年第6期31-33,共3页Coal Geology & Exploration

摘　　要：在研究刘桥一矿岩溶陷落柱基本特征的基础上，结合华北陷落柱资料，认为岩溶陷落柱多形成在现代伸展构造或自重应力为主的地区，柱体围岩具备易于冒落的岩体结构，陷落过程围岩应力条件与采空区覆岩冒落过程类似，奥灰岩溶的持续作用是陷落柱体不断向上发展的根本原因。Based on study of fundamental features karstic collapse column of in Liuqiao NO.1 coal mine,and some of mine in other region,it is concluded that the rock mechanics conditions consist of the following aspects :lst,the collapse column are almost contribued over an area of extensional tectonics or selfweight street field;2nd,its rock stucture is easy to fall;3rd,its stress state of cavein is similar to the roof fall caused by mining;4th,the essential factor of the column growing up is sustained karstification

关 键 词：岩溶陷落柱 应力分析 岩体力学 煤矿床 

分 类 号：P641.461[天文地球—地质矿产勘探]