马路坪矿深部开采岩爆倾向性模糊综合评判

Fuzzy Comprehensive Evaluation on Rock-burst Tendency of Deep Mining in Maluping Mine

开阳集团马路坪矿经过40多年的开采,某些中段即将进入深部开采的范围。为预测马路坪矿4种主要岩石在750中段、700中段和600中段的岩爆倾向性,对这4种岩石进行岩石力学试验,同时提出由不同影响因素构成的多种评判指标,通过理论预测法进行岩爆的模糊数学综合评判,最后运用级别变量特征值Hj作为评判准则来判断这4种岩石在3个中段的岩爆倾向性,得出这4种岩石随着开采深度的加大而岩爆倾向性增强的趋势。

After 40 years＇ mining in Maluping mine of Kaiyang Phosphorus Mine Group,some of its level positions are coming into the deep mining.In order to predict the orientation of rock-burst for four kinds of rocks in 750 level,700 level and 600 level respectively,the systematical experiments for the four kinds of rocks have been performed.At the same time,various evaluation criteria on the different influence factors were put forwards.And the theoretical prediction method was used to realize its fuzzy mathematics evaluation of rock-burst.At last,the level-variables Eigenvalue was used as the judge criteria to estimate the orientation of rock-burst in three level sections for these four kinds of rocks,and it is concluded that the rock-burst tendency will be up with the depth of these four rocks increase.