Huozhou Coal Power Group Hejin Tenghui Coal Industry Co. , Ltd.

为提高腾辉煤业三采区大巷在复采区域的掘进效率,确保巷道掘进期间的安全性,根据巷道地质条件及掘进工艺,采用多指标综合分析法及层次分析法,建立了复采巷道快速掘进的安全分级,对腾辉煤业三采区复采巷道安全性进行了评价。基于影响因子值并采用综合分析法,定义了安全因子,并确定了安全因子的最大值为0.680及最小值为0.075,根据安全因子的最大及最小值的平均值将巷道安全性划分为5个等级。进一步引入腾辉煤业3采区大巷掘进中的评价指标值,计算得到当前生产条件安全因子值为0.398,安全等级属于相对安全范围。

In order to improve the excavation efficiency of the main roadway in the third mining area of Tenghui Coal Mine and ensure the safety during the excavation period, based on the geological conditions and excavation process of the roadway, the multi-index comprehensive analysis method and analytic hierarchy process were used to establish a safety classification for rapid excavation of the re-mining roadway, and the safety of the re-mining roadway was evaluated. Based on the value of the impact factor and using the comprehensive analysis method, a safety factor was defined, and the maximum and minimum values of the safety factor were determined to be 0. 680 and 0. 075, respectively. The maximum and minimum values of the safety factor were averaged to divide the safety of the roadway into five levels. Further, the evaluation index values from the excavation were introduced, and the current production condition safety factor value was calculated to be 0. 398, indicating that the excavation was relatively safe.

李 达. 厚煤层残煤复采区掘进大巷安全影响因素分析及评价 [J]. 煤炭工程, 2023, 55(7): 115-119.