基于综合指数法及BP神经网络模型的矿压显现程度分析

Strata Pressure Behavior Degree Based on Comprehensive Index Method and BP Neural Network Model

中煤集团塔山煤矿矿区内临近矿井进行3-5#煤层开采时曾发生过冲击事件,为保证该矿3-5#煤层一采区实现安全正常回采,依据具体的地质和开采技术条件,采用综合指数法对整个区域的冲击危险性进行评价。研究表明,一采区整体性为无冲击危险性,采用BP神经网络建立预测矿压显现的模型,对整个区域的矿压显现剧烈程度进行划分,对于矿井的安全生产、预警预防措施的制定等方面具有重要的意义。为类似开采技术条件下煤层的矿压治理、预测提供参考。

Rock burst in the mining occurred in the proximity of 3-5 coal seam in the mining area of Tashan Coal Mine.In order to ensure the|safety of the No.1 mining area,the comprehen-sive index method was used to evaluate the impact risk of the entire area based on the specific ge-ological and mi ning technical conditions.The study showed the mining area as no rock burst risk.A BP neural net work model to predict strata pressure behavior was esta blished for risk classifica-tion of strata pressure behavior in the entire area,which was of great significance for the safety production as well as the esta blishment of early warning and preventive meas ures and which pro-vided a reference for the treatment and prediction of the strata pressure under the similar condi-tions.