变相岩层变形机理及控制技术的研究  

Study on Deformation Mechanism and Control Technology of Metamorphic Rock Strata

作　　者：张建华 Zhang Jianhua(Zhenchengdi Mine,Xishan Coal Electricity Co.,Ltd.,Taiyuan Shanxi 030053)

机构地区：[1]西山煤电股份有限公司镇城底矿,山西太原030053

出　　处：《山西冶金》2023年第4期63-65,共3页Shanxi Metallurgy

摘　　要：为了解决变相岩性顶板岩层支护困难的问题,以镇城底矿为研究背景,基于地质资料建立UDEC数值模拟模型,对4种支护方案下巷道顶板下沉量进行分析,发现方案三和方案四无法使巷道稳定性得到保障;方案一和方案二支护可行,考虑经济效益后,最佳支护方案为方案二。对方案二进行应用发现,支护后且顶板及底板的移近量最大值为210 mm,两帮的移近量最大值为180 mm,满足支护要求,为矿井后期开采提供一定的安全保障。In order to solve the problem of difficult support for metamorphic lithologic roof strata,based on the research background of Zhenchengdi Mine,a UDEC numerical simulation model was established based on geological data to analyze the roadway roof subsidence under four support schemes.It was found that the roadway stability cannot be guaranteed under the two support schemes,scheme III and scheme IV,and scheme I and scheme II are feasible.After considering economic benefits,the best support scheme is scheme II.The application study of scheme 2 found that after the support,the maximum displacement of the roof and floor is 210 mm,and the maximum displacement of the two sides is 180 mm,which meets the support requirements and provides a certain safety guarantee for the later mining of the mine.

关 键 词：数值模拟 变相岩层 支护方案 

分 类 号：TD854.6[矿业工程—金属矿开采]