煤矿开采地面塌陷导致地表建(构)筑物开裂成因分析  

Cause analysis on cracking of surface buildings(structures)caused by coal mining subsidence

作　　者：王祥林 周炜 WANG Xianglin;ZHOU Wei(Team 317 of Yunnan Nonferrous Geology Bureau,Qujing 655000,Yunnan,China)

机构地区：[1]云南省有色地质局三一七队,云南曲靖655000

出　　处：《矿产勘查》2024年第S2期652-661,共10页Mineral Exploration

基　　金：云南省有色地质局“百名地质技术人才培养工程”([2022]42一三一七队-06)资助。

摘　　要：煤矿开采塌陷导致地表建(构)筑物开裂往往是多种因素综合形成,本文以某煤矿为实例,从研究区地质环境条件、自然状态下区内斜坡特征及稳定性、采空区地表移动盆地变形影响、采矿爆破震动对建(构)筑物变形影响、采矿疏干排水对建(构)筑物变形影响诸多因素综合分析,通过分析采煤形成采空区引起的采空区移动范围区岩土体产生不均匀沉降,是造成鉴定区地面附着建构筑物、道路变形、开裂的主要原因。Cracking of surface buildings(structures)caused by coal mining subsidence is often caused by many factors.Taking a coal mine as an example,this paper analyzes the factors of geological environment condi-tions,slope characteristics and stability in natural state,deformation influence of surface moving basin in goaf,influence of mining blasting vibration on deformation of buildings(structures)and influence of mining unwatering drainage on deformation of buildings(structures),then explores the uneven settlement of rock and soil in the mov-ing range of goaf caused by coal mining,which is the main reason for the deformation and cracking of buildings and structures attached to the ground and roads in the identification area.

关 键 词：开采塌陷 移动盆地 疏干排水 爆破震动 建(构)筑物开裂 

分 类 号：P694[天文地球—地质学]