岳城矿预抽地面井采动影响数值模拟研究  

Numerical simulation study on mining influence of pre-pumping surface well in Yuecheng Mine

作　　者：王然 武文宾[1,2] 戴林超 付军辉[1,2] Wang Ran;Wu Wenbin;Dai Linchao;Fu Junhui(State Key Laboratory of The Gas Disaster Detecting and Emergency Controlling,Chongqing 400037,China;China Coal Technology and Engineering Group Chongqing Research Institute,Chongqing 400037,China)

机构地区：[1]瓦斯灾害监控与应急技术国家重点实验室,重庆400037 [2]中煤科工集团重庆研究院有限公司,重庆400037

出　　处：《能源与环保》2023年第5期299-304,共6页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：重庆英才计划项目(cstc2022ycjh-bgzxm0021);山西省科技计划揭榜项目(20201101001-2)。

摘　　要：为提高地面井抽采效率及优化地面井井位选择,基于岳城矿1301下工作面概况、岩层参数及综合柱状图,采用FLAC 3D构建岳城矿综采工作面数值计算模型,对采场覆岩运移规律进行模拟计算分析。通过模拟1301下综采工作面回采情况,分析了采动过程顶底板塑性区变化及覆岩应力变化规律,得到了综采工作面推进至预抽井附近时的应力演化特征,并进一步分析了综采工作面推进至预抽井附近时的应力演化特征,为预抽井井位优选提供了理论依据。In order to improve the extraction efficiency of surface wells and optimize the selection of surface wells,based on the general situation of low 1301 working face of Yuecheng Mine,rock parameters and comprehensive bar chart,the numerical calculation model of fully-mechanized working face of Yuecheng Mine is built by FLAC 3D,and the overburden migration law of stope is simulated and analyzed.Through simulation,low 1301 fully-mechanized mining face,analyzes the process of mining roof and floor changes and the strata stress change rule of the plastic zone,the fully-mechanized working face advancing to drainage wells near the evolution characteristics of stress,and further analyzes the fully-mechanized working face advancing to drainage wells near the evolution characteristics of stress,provides a theoretical basis for pre-pumpinge well location optimization.

关 键 词：地面预抽井 采场覆岩 采动影响 数值模拟 井位优选 

分 类 号：TD712[矿业工程—矿井通风与安全]