采空区充水过程水位变化特征及影响因素研究  

Research on water level variation characteristics and influencing factors during water filling in goaf

作　　者：高鑫 邓存宝 邢玉忠 GAO Xin;DENG Cunbao;XING Yuzhong(College of Safety and Emergency Management Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Center of Shanxi Mine Safety for Graduate Education Innovation,Taiyuan 030024,China)

机构地区：[1]太原理工大学安全与应急管理工程学院,山西太原030024 [2]山西省煤矿安全研究生教育创新中心,山西太原030024

出　　处：《煤矿安全》2023年第9期180-186,共7页Safety in Coal Mines

基　　金：国家自然科学基金-山西煤基低碳联合基金重点支持资助项目(U1710258)。

摘　　要：影响矿井突水水位的重要因素有突水强度、矿井巷道和矿井采空区;为研究矿井突水后采空区充水过程中的内部水位变化特征及影响因素,搭建了实验平台,进行采空区充水实验研究。结果表明:在矸石对水流的阻滞作用下,采空区充水过程分为初期水流蔓延阶段和后续充水阶段,整个过程中近工作面处水位较高而深部水位较低,水面出现坡度且随时间逐渐减小;采空区充水率随时间增长且近似二次函数变化,突水量和矿井空间结构是影响充水过程的重要因素。The important factors that affect the water inrush level in mines are the intensity of water inrush,mine roadways and mine goafs.In order to study the characteristics and influencing factors of internal water level changes in the process of water filling in goafs after mine water inrush,an experimental platform was built to conduct experimental research on water filling in goafs.The results show that:under the blocking effect of gangue on water flow,the water filling process of the goaf is divided into the initial water flow spreading stage and the subsequent water filling stage.In the whole process,the water level near the working face is higher while the deep water level is lower,and the water surface slope appears and gradually decreases with time;the water filling rate of goaf increases with time and approximates a quadratic function change.Water inrush and mine spatial structure are important factors affecting the water filling process.

关 键 词：矿井突水 水位 相似模拟 变化特征 影响因素 

分 类 号：TD745[矿业工程—矿井通风与安全]