首页 | 官方网站   微博 | 高级检索  
     

矿井采空区地下水库抗震性研究
引用本文:王文才,李雨萌.矿井采空区地下水库抗震性研究[J].煤矿安全,2020(4):57-60,65.
作者姓名:王文才  李雨萌
作者单位:内蒙古科技大学矿业研究院
基金项目:国家自然科学基金资助项目(51764044,51364028)。
摘    要:为研究矿井采空区水库在震动环境下稳定性和安全度的变化情况,以李家壕煤矿为研究背景,通过采用公式推导和实验室相似模拟实验的方法,分析研究地震或其他震动持续存在的情况下,采空区水库各主要部分的稳定性以及安全度的变化情况。由于坝体是支撑采空区水库正常作业的关键部分,因此,着重对坝体在地震作用下的动力响应进行分析,得到坝体在地震情况下的动力响应公式。同时,通过实验室相似模拟实验的研究得出在采空区在震动持续存在的情况下,整个采空区受扰动后安全度的变化情况:随着震动强度的增加,水库整体的安全度降低;且在震源位置已知的条件下,距离震源越近处的安全度越低。

关 键 词:采空区  地下水库  震动扰动  动力响应  安全度

Study on Earthquake Resistance of Underground Reservoir in Mined-out Area of Mine
WANG Wencai,LI Yumeng.Study on Earthquake Resistance of Underground Reservoir in Mined-out Area of Mine[J].Safety in Coal Mines,2020(4):57-60,65.
Authors:WANG Wencai  LI Yumeng
Affiliation:(Mining Research Institute,Inner Mongolia University of Science and Technology,Baotou 014010,China)
Abstract:To study the change of stability and safety degree of mine goaf reservoir under vibration environment, taking Lijiahao Coal Mine as the research background, the stability and safety of the main parts of the goaf reservoir are analyzed and studied under the continuous existence of earthquake or other earthquakes by using the method of formula derivation and similar simulation experiment in laboratory. Since the dam body is a key part of supporting the normal operation of goaf reservoir, the dynamic response formula of the dam body under the action of earthquake is analyzed to obtain the dynamic response of the dam body under the condition of earthquake. At the same time, through the research of similar simulation experiments in the laboratory,the variation of the safety degree of the whole goaf after disturbance is obtained under the condition that the vibration in the goaf continues to exist. With the increase of seismic intensity, the overall safety of the reservoir decreases. And under the condition that the source location is known, the closer the source is, the less safe it is.
Keywords:goaf  groundwater reservoir  vibration disturbance  dynamic response  safety
本文献已被 CNKI 维普 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司    京ICP备09084417号-23

京公网安备 11010802026262号