煤矿安全2018，Vol.49Issue(3)：33-35,39,4.DOI:10.13347/j.cnki.mkaq.2018.03.009
渗流作用下软弱覆岩相似模拟实验研究
Study on Similar Simulation Experiment of Weak Strata Under the Action of Seepage
摘要
Abstract
Aiming at the failure characteristics and the water permeation mechanism of the weak overburden in the aquifer,in this paper,two-dimensional physical similarity simulation experiment is used to explore the mining process.The formation mechanism of the seepage flow area is analyzed,and the judgment basis of the dominant route of water diversion is discussed.The experimental study shows that under the action of seepage,the fractured area of fissure development area,fissure compacting area and potential fissure area are affected by mining failure.From surface to coal seam direction,overburden fissure gradually increased from top to bottom,the water seeps along the fissures with larger crack rate into goaf.The seepage area is distributed in the “funnel” distribution above the aquifer,and the “broken arch” is formed along the fault line of the formation.The trace of water flow gradually dissipated from the inside of the “broken arch” to the outside.In the direction of coal seam,the relative size of the gushing water is the side of the open-off cut＞ the overburden area of the goaf area＞ the side of the stop mining face.关键词
相似模拟实验/综放开采/渗流机理/导水路径/涌水量Key words
similar simulation experiment/full-mechanized caving mining/percolation mechanism/path of water inrush/water inflow分类
矿业与冶金引用本文复制引用
陈卓立,夏洪春,胡涛,战胜..渗流作用下软弱覆岩相似模拟实验研究[J].煤矿安全,2018,49(3):33-35,39,4.基金项目
国家自然科学基金资助项目(51574055,51374046,51374045) （51574055,51374046,51374045）
辽宁省教育厅资助项目(L2013474) （L2013474）
大连大学校园创业资助项目(2016036) （2016036）
