复杂条件下跨巷开采的巷道安全性分析

Safety Analysis of Cross Mining Roadway under Complex Condition

针对某矿复杂开采条件下710工作面顺跨底板大巷开采的现状,为了使巷道能够正常使用,确保矿井的安全生产,采用回归分析和FLAC^(3D)数值模拟方法,预计跨采过程中底板巷道的最大变形量,根据预测结果对巷道的二次加固提出合理建议。分析加固后的巷道在正常开采期间的宏观矿压显现观测数值,综合巷道变形预测值与实际观测值,对巷道的可行性与安全性进行分析。

Aiming at the present situation of 710 working face cross mining roadway under the complex condition in a certain colliery , in order to make the roadway can be normal used and ensure the safety production,the regression analysis and FLAC3~ numerical simulation method are used to predict maximum deformation of cross mining roadway which reach a conclusion that the roadway must be reinforced. By analysing the strata behaviors of reinforced tunnel during normal mining and integrating the predicted deformation values and actual values to analyze the feasibility and security of the roadway.