煤田地质与勘探2019，Vol.47Issue(1)：127-132,137,7.DOI:10.3969/j.issn.1001-1986.2019.01.019
高水压作用下煤层底板隔水关键层弹性力学解
Elastic mechanics solution of water proof key layer in coal seam floor under high water pressure
摘要
Abstract
Aiming at the problem of water resisting capacity of the key layer in seam floor under the action of high pressure water, the key stratum was simplified as a fixed beam. The stress and displacement were calculated by the stress function method and the semi inverse method respectively. The results of two calculations were compared with the FLAC3D results. The results show that the stress and displacement obtained by the stress function method are more appropriate than those calculated by the FLAC3D method. It is suggested that for elastic mechanics analytic method of the fixed beam of the key layer the stress function method is the first method. The research results can provide theoretical support for the prediction and forecasting of water inrush from seam floor the bottom in a stope.关键词
底板突水/固支梁/应力函数/半逆解法Key words
water inrush in floor/clamped beam/stress function/semi inverse solution分类
矿业与冶金引用本文复制引用
王妍,姚多喜,鲁海峰..高水压作用下煤层底板隔水关键层弹性力学解[J].煤田地质与勘探,2019,47(1):127-132,137,7.基金项目
国家自然科学基金面上项目(51474008) （51474008）
