煤矿开采引发不同地区地面变形的对比分析

本文简介了亭南煤矿、大佛寺煤矿采空区引发的不同地质灾害,经对比分析两矿地质采矿条件,提出有效长深比、有效深厚比、覆岩力学性质、不同力学性质覆岩厚度的明显不同是两矿采空区引发不同地质灾害的主要原因,并依据有效深厚比划分了两矿不同程度地质灾害的分布范围及对村庄的危险性。

Comparatine analysis of ground collapse the caused by coal mining

This article has introduced ground collapse caused by goaf of adjacent coal mines—Tingnan and Dafosi.After the contrastive analysis,it has put forward that obvious differents of the effective ratio of length to depth,the effective ratio of depth to thickness,overlying strata mechanical properties,different mechanical properties rock layer thickness are the different geological disaster＇s primary cause by two types goaf,and based on the effective ratio depth to thickness,it havs divided the different geological disaster range of distribution and the degree of risk to the village.