采矿与安全工程学报2018，Vol.35Issue(1)：118-124,145,8.DOI:10.13545/j.cnki.jmse.2018.01.017
基于岩层移动计算的工作面 覆岩体渗透率变化研究
Study on the permeability change of overlying strata based on strata movement calculations
摘要
Abstract
In order to calculate the permeability change of overlying strata caused by the strata caving and deformation during mining, the influence-function method, which is widely applied to the surface subsidence prediction, is revised and optimized in this study. Meanwhile, the detail steps are designed to calculate the strata deformation and movement, establishing the subsurface strata-movement-prediction model based on the influence-function method. Both the horizontal and vertical strain could be derived by above-mentioned model. Furthermore, according to the permeability model of coal and rock mass, a method of "strain-porosity-permeability" for characterizing permeability change is established. The re-liability of the subsurface strata-movement-prediction model is tested, based on the field data of surface and overlying strata movement during mining in a shallow coal seam. Results indicate that this model has high reliability, and could also be applied to calculate the permeability change of overlying strata after mining activities.关键词
煤矿开采沉陷/预测模型/影响函数法/上覆岩层Key words
mining subsidence/prediction model/influence-function method/overburden strata分类
矿业与冶金引用本文复制引用
陆卫东,程健维..基于岩层移动计算的工作面 覆岩体渗透率变化研究[J].采矿与安全工程学报,2018,35(1):118-124,145,8.基金项目
新疆维吾尔自治区高层次人才培养计划项目 （）
煤炭资源与安全开采国家重点实验室自主研究课题项目(SKLCRSM18X002) （SKLCRSM18X002）
中国博士后科学基金项目(2015M581897) （2015M581897）
新疆工程学院横向项目(2014xgyh051712) （2014xgyh051712）
