摘要
采用某受承压水威胁工作面的具体工程地质资料,利用FLAC3D软件强大的流固耦合功能,建立该带压开采工作面的数值分析模型并进行流固耦合数值模拟.通过数值模拟,分析不同推进长度时煤层底板隔水层内岩体的位移、应力分布规律及含水层承压水在隔水层中的导升高度.数值模拟结合"下三带"理论,判断在承压水作用下,底板内是否存在完整隔水层,以判断工作面在采煤过程中是否会发生突水事故.对承压水上采煤的流耦合数值模拟具有一定的参考作用.
In combination with the specific engineering geological conditions of some mining face which is under the threat of confined water mining, this paper uses the powerful fluid - solid coupling function of FLAC^3D software to have a fluidsolid coupling numerical simulation on the mining face. It analyzes the coal floor rock strata in mining process displacement, stress and pore water pressure variation rules and the coal floor that the failure characteristics. And it is combined with the three zones theory to judge whether the work face will water bursting or not, which have certain reference function coal to above water fluid - structure coupling numerical simulation .
出处
《矿业工程研究》
2013年第2期37-41,共5页
Mineral Engineering Research
基金
国家自然科学基金资助项目(51074003
51074005)
国家自然科学基金委员会与神华集团有限公司联合资助项目(51174255)
安徽省优秀青年科技基金资助项目(10040606Y31)
中国博士后科学基金资助项目(2011M501037)
关键词
流固耦合
带压开采
“下三带”理论
底板破坏特征
fluid -solid coupling
confined water coal mining
the three zones theory
damage law
