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
薛冰 1鲁海峰1
作者信息
- 1. 安徽理工大学地球与环境学院,安徽淮南 232063
- 折叠
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.
Abstract
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Key words
fully mechanized top coal caving/floor water inrush/fitting formula/floor mining failure depth引用本文复制引用
出版年
2025
NETL
NSTL
万方数据