煤层倾角对底板破坏带深度的影响  

Influence of Dip Angle of Coal Bed on Depth of Broken Floor

作　　者：孙少华 苏礼 苏志毅 

机构地区：[1]山西煤炭运销集团三元石窟煤业有限公司,山西长治047500

出　　处：《煤》2017年第8期29-32,共4页Coal

基　　金：国家自然科学基金资助项目(51274116)

摘　　要：煤层倾角是底板破坏带深度的一个重要影响因素。为研究煤层倾角对底板破坏带深度的影响,建立底板破坏带数值模拟模型,应用线性拟合数学方法,得出破坏带深度与煤层倾角的函数关系,并应用相似函数理论建立的Im-FM破坏带深度计算模型检验计算精度。对底板水害的预测预报具有一定的指导意义。Dip angle of coal bed is a key factor that affects the depth of broken floor. To study in - depth the influence of coal bed dip angle on depth of broken floor, a calculation model with higher accuracy is established. By numerical simulation and taking linear fitting mathematical method, the functional relationship between dip angle of coal bed and broken depth is concluded. Based on fracture mechanics and applying similar function theory, Im - FM calculation model to calculate the broken depth is established and it＇s accuracy is examined by sampled data.

关 键 词：煤层倾角 底板破坏带深度 断裂力学 线性拟合 相似函数 

分 类 号：TD745[矿业工程—矿井通风与安全]