完整底板突水机理研究  

Recearch on Complete Type Floor Water Inrushing Mechanism

作　　者：李存禄 郝建[2] 范吉宏 张涛 

机构地区：[1]山东能源临矿集团新驿煤矿,山东兖州272100 [2]山东科技大学矿山灾害预防控制国家重点实验室培育基地,山东青岛266590

出　　处：《煤》2016年第12期1-4,共4页Coal

基　　金：国家自然科学基金资助项目(51604167)

摘　　要：为研究完整型底板突水机理,文章理论分析了突水事故发生的三大要素,即水源、水压、突水通道,分析了采动突水通道形成的发展规律及突水灾害实现的条件。对演马庄矿12121采煤工作面突水事故时空特点进行了分析,分析认为:12121采煤工作面突水事故在时间上,恰逢直接顶初次来压(工作面推进31 m)前夕;空间上,突水点位于煤壁附近,靠近回风巷位置。其原因是,直接顶来压前夕,支承压力峰值较大,对底板岩体的破坏作用较大,而靠近回风巷位置为应力叠加区域,支承压力峰值最高。在强大的矿山压力和水压作用下,底板破坏带和承压水导升带沟通,高水压通过底板裂隙涌入工作面,产生突水。In order to research complete type floor inrush mechanism, three elements theory analyzed the water inrush accidents was analyzed theoretically, that is water resource, water pressure and water inrushing path. Forming and developing rule of water inrushing path was analyzed, meanwhile realizing conditions of water inrush was analyazed, characteristics of tempora and space of water inrush accident of YanmazhuangCoal Mine 12121working face are analyzed, analysis indicates that the water inrushing accident occurred at immediate roof first pressure （31 m） working face advancing eve, and located near the coal wall, close to the position of return air roadway. The reason is that the immediate roof weighting on the eve of the abutment pressure peak value is greater, the destruction of the floor rock mass effect is greater, And the return air lane position for stress superposition region, the abutment pressure peak value is highest. Under the effect of powerful mine pressure and the water pressure, the floor damage zone and confined water belt. waterwith high pressure come into working face by floor fractures, water inrushing accident occurred.

关 键 词：完整型底板 突水机理 时空特点 突水通道 

分 类 号：TD745[矿业工程—矿井通风与安全]