某磷矿地下开采对地表沉降及地表建筑的影响分析  

Analysis of Influence of Underground Mining of a Phosphate Mine on Surface Subsidence and Surface Construction

作　　者：乔烨彬 李寿山 杨彬 徐祖德 Yebin Qiao;Shoushan Li;Bin Yang;Zude Xu(Zhonglan Changhua Engineering Technology Co.,Ltd.,Changsha,Hunan 410000)

机构地区：[1]中蓝长化工程科技有限公司,湖南长沙410000

出　　处：《新疆钢铁》2025年第1期186-188,共3页Xinjiang Iron and Steel

摘　　要：本文以贵州某磷矿地下开采为研究对象,基于“安全规程”“三下开采”的规范要求,结合地层岩性、矿体赋存条件、地表建筑物分布等各种因素,采用概率积分法对地下开采过程中采空区充填和不充填两种情况下的地表沉降进行计算分析,进而分析论证对地表建筑物的影响。结果表明,该磷矿地下开采过程中,在对采空区采取及时充填的情况下,计算得出地表移动变形计算值小于地表允许变形值,在规范允许范围内;但是应加强重点区域的地表位移监测和细化岩石力学参数,以期在后续开采过程中持续指导安全生产。This paper takes the underground mining of a phosphate mine in Guizhou as the research object.Based on the requirements of"safety regulations"and"three-level mining",combined with various factors such as stratum lithology,ore body occurrence conditions,and surface building structure distribution,the probability integral is used.The method is used to calculate and analyze the surface subsidence of the goaf filling and no filling in the process of underground mining,and then analyze and demonstrate the impact on the surface buildings.The results show that in the process of underground mining of this phosphate rock,when the goaf is filled in time,the calculated value of the surface movement deformation is less than the allowable deformation value of the surface,which is within the allowable range of the specification;however,the surface movement in key areas should be strengthened.Displacement monitoring and refinement of rock mechanics parameters to continuously guide safe production during subsequent mining.

关 键 词：建筑物下开采 概率积分法 地表沉降 充填采矿 

分 类 号：TD327[矿业工程—矿井建设]