承压水上采煤底板破坏深度的探讨  

Study on depth of destroyed floor with mining above confined aquifers

作　　者：郭敬中[1] 单耀[1] 赵启峰[1] 

机构地区：[1]华北科技学院安全工程学院,北京东燕郊101601

出　　处：《华北科技学院学报》2016年第5期37-42,共6页Journal of North China Institute of Science and Technology

基　　金：中央高校基本科研业务费资助(HKJYZD201604;3142015028)

摘　　要：针对我国承压水上采煤底板突水灾害随工作面斜长不断增大而逐年增多的趋势,在总结全国典型煤矿底板破坏深度实测资料的基础上,通过Excel中的拟合函数功能,建立了多元线性回归公式。通过与经验公式,实测数据对比发现,该公式具有较好的预测效果。研究发现,工作面斜长对底板破坏深度起着至关重要的作用,且随着工作面斜长的增加,底板破坏深度也随着增加。Aimed at the trend of water inrush disasters increasing annually with the facing length above con- fined aquifers, based on the summary of measured data of typical coal floor damage depth nation - wide in Chi- na. Using the function analysis capability in Excel, multi - variable linear regression formula was founded. With the comparisons in computation error between the measured data and the coal floor damage depth ted using the standard empirical equation, and in - situ data, multi - variable linear regression formula a higher accuracy in prediction and relatively low error range. This study shows that facing length has a cant influence, and depth of the failure floor increases as the facing length extends. predic- provide signifi-

关 键 词：底板破坏深度 多元回归 经验公式 数值模拟 

分 类 号：TD32[矿业工程—矿井建设]