任燕娟, 梁士奎. 基于模糊物元理论的岩爆倾向性等级评价[J]. 中国矿业, 2020, 29(6): 149-154,175. DOI: 10.12075/j.issn.1004-4051.2020.06.013
    引用本文: 任燕娟, 梁士奎. 基于模糊物元理论的岩爆倾向性等级评价[J]. 中国矿业, 2020, 29(6): 149-154,175. DOI: 10.12075/j.issn.1004-4051.2020.06.013
    REN Yanjuan, LIANG Shikui. Grade evaluation of rockburst tendency based on fuzzy matter-element theory[J]. CHINA MINING MAGAZINE, 2020, 29(6): 149-154,175. DOI: 10.12075/j.issn.1004-4051.2020.06.013
    Citation: REN Yanjuan, LIANG Shikui. Grade evaluation of rockburst tendency based on fuzzy matter-element theory[J]. CHINA MINING MAGAZINE, 2020, 29(6): 149-154,175. DOI: 10.12075/j.issn.1004-4051.2020.06.013

    基于模糊物元理论的岩爆倾向性等级评价

    Grade evaluation of rockburst tendency based on fuzzy matter-element theory

    • 摘要: 岩爆倾向性等级评价是研究岩爆发生机理的基础。本文以脆性岩爆指标(B)、Barton岩爆指标(α)、弹性变形能岩爆指标(Wet)和冲击能岩爆指标(Wcf)为基础建立岩爆倾向性评价指标体系,建立了基于模糊物元理论的岩爆倾向性等级评价模型。采用该模型对小厂坝矿区典型岩石的岩爆倾向性等级进行评价,结果表明:矿岩和黑云母石英片岩均为强岩爆倾向性。灰岩随着埋深增加,由弱岩爆倾向性向中岩爆倾向性过渡。矿体的上盘(黑云母石英片岩)为强岩爆倾向性,矿体的下盘(灰岩)为中岩爆倾向性,在实际开采过程中,应尽量将采矿工程布置于下盘。矿体为强岩爆倾向性,这与实际开采中频繁出现岩爆征兆现象一致。建议开采过程中应加强地压监测,合理布置卸压工程。

       

      Abstract: The grade evaluation of rockburst tendency is the basis for studying the mechanism of rockburst.Based on the brittle rockburst index(B), Barton rockburst index(α), elastic deformation energy rockburst index(Wet) and impact energy rockburst index(Wcf), the rockburst tendency evaluation index system is established.The rockburst tendency grade evaluation model is established based on the fuzzy matter-element theory.This model is used to evaluate the rockburst tendency grade of typical rocks in Xiaochangba mining area.The results show that both the ore and biotite quartz schist are strong rockburst tendency.As the burial depth increases, the limestone transitions from a weak rockburst tendency to a medium rockburst tendency.The upper plate of the ore body(biotite quartz schist) is a strong rockburst tendency, and the lower plate(grey rock) of the ore body is a medium rockburst tendency.In the actual mining process, the mining project should be arranged in the lower plate as much as possible.The ore body is a strong rockburst tendency, which is consistent with the frequent occurrence of rockburst symptoms in actual mining.It is suggested that the ground pressure monitoring should be strengthened during the mining process and the pressure relief project should be arranged reasonably.

       

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