综放开采下煤层底板采动破坏深度预测  

Prediction of Mining Failure Depth of Coal Floor under Fully Mechanized Top Coal Caving

作　　者：薛冰 鲁海峰[1] XUE Bing;LU Haifeng(School of Earth and Environment,Anhui University of Science and Technology,Huainan 232063,China)

机构地区：[1]安徽理工大学地球与环境学院,安徽淮南232063

出　　处：《煤炭技术》2025年第1期7-10,共4页Coal Technology

基　　金：国家自然科学基金面上项目(41977253)。

摘　　要：以淮南顾北煤矿12121工作面为工程研究背景,收集了22个综放工作面地质资料和底板破坏深度实测值,通过线性回归分析建立新的预测模型,得出了底板采动破坏深度的拟合公式,准确计算出底板采动破坏的深度,并将计算值及3个传统统计公式计算结果与现场实测值进行对比分析,得出新预测模型拟合公式比传统统计公式预测精度更高、误差更小,更接近实测值,基本可以满足现场需要。研究成果对淮南矿区煤层综放开采水害防治具有较高的实用价值,为类似工作面的水害防治提供更为科学的依据。Taking 12121 face of Gubei coal mine in Huainan as the engineering research background,the geological data of 22 fully mechanized caving faces and the measured value of floor failure depth were collected,and a new prediction model was established through linear regression analysis,the fitting formula of floor mining failure depth was obtained,and the depth of floor mining failure was accurately calculated.Comparing the calculated values and the results of the three traditional statistical formulas with the measured values,it is concluded that the fitting formula of the new prediction model has higher prediction accuracy and smaller error than the traditional statistical formulas,and is closer to the measured values,which can basically meet the needs of the field.The study results have high practical value for water damage control in fully mechanized caving mining of coal seam in Huainan mining area,and provide more scientific basis for water damage control of similar working faces.

关 键 词：综放开采 底板突水 拟合公式 底板采动破坏深度 

分 类 号：TD325[矿业工程—矿井建设] TD745