采动过程中的工作面底板破坏规律数值模拟研究  

Numerical Simulation Study on the Failure Law of the Working Face Floor in the Process of Mining

作　　者：刘英杰 LIU Yingjie(Shouyang Luyang Xiangsheng Coal Industry Co.,Ltd.of Shanxi,Shouyang 045400,Shanxi,China)

机构地区：[1]山西寿阳潞阳祥升煤业有限公司,山西寿阳045400

出　　处：《能源与节能》2020年第2期32-33,共2页Energy and Energy Conservation

摘　　要：对采场采动过程中的工作面底板破坏规律进行了数值模拟研究。当峰峰组不具有隔水性、厚度设置为18 m时,隔水层底板未出现原位张裂区域,开采完成后峰峰组含水层与底板相互贯通,工作面底板突水形成;当工作面底板隔水层厚度较大时,施加水压对底板破坏深度的影响不明显。This paper studied the numerical simulation of the failure law of the working face floor in the process of mining.When the Fengfeng Formation is not water-proof and the thickness is set at 18 m,there is no in-situ tension crack area in the bottom of the aquiclude.After mining,the aquiclude of Fengfeng Formation is connected with the bottom of the aquiclude,and the water inrush from the bottom of the working face is formed.When the thickness of aquiclude is large,the influence of water pressure on the depth of floor failure is not obvious.

关 键 词：底板 隔水层 突水 

分 类 号：TD325.4[矿业工程—矿井建设]