采动影响下巷道围岩变形特征及支护技术研究
|
摘要
为解决采动影响下的巷道围岩应力集中、变形大等支护难题,以华润煤业205运输顺槽为例,采用FLAC3D数值模拟软件,分别对工作面顺槽受采动影响前和受采动影响时围岩屈服破坏情况、垂直应力分布、垂直和水平位移特征进行分析,得出205运输顺槽受采动影响时的最优支护方式和参数,并且成功用于工程实践。
To solve stress concentration and severe deformation of surrounding rocks under the influence of mining,taking No.205 transporting crosshead as an example,the FLAC3D numerical simulation software was used to analyze the yield failure of surrounding rocks,vertical stress distribution,and vertical and horizontal displacement before and after the mining.The optimal support method and parameters in the mining has been successfully used in engineering practice.
To solve stress concentration and severe deformation of surrounding rocks under the influence of mining,taking No.205 transporting crosshead as an example,the FLAC3D numerical simulation software was used to analyze the yield failure of surrounding rocks,vertical stress distribution,and vertical and horizontal displacement before and after the mining.The optimal support method and parameters in the mining has been successfully used in engineering practice.
引文
[1]杜时贵.岩体结构面的工程性质[M].北京:地震出版社,1999.
[2]钱明高,石平五.矿山压力与岩层控制[M].徐州:中国矿业大学出版社,2009.
[3]赵海军,马凤山,丁德民,等.采动影响下巷道变形机理与破坏模式[J].煤炭学报,2009,34(5):599-604.
[4]樊正兴,谢文兵.采动影响下煤层上山巷道支护技术[J].煤炭科学技术,2012,40(1):12-15.
[5]刘建军,吕志强,郭敏江.邻近工作面采动影响下巷道矿压规律研究[J].煤炭科技,2009,(1):81-83.
[2]钱明高,石平五.矿山压力与岩层控制[M].徐州:中国矿业大学出版社,2009.
[3]赵海军,马凤山,丁德民,等.采动影响下巷道变形机理与破坏模式[J].煤炭学报,2009,34(5):599-604.
[4]樊正兴,谢文兵.采动影响下煤层上山巷道支护技术[J].煤炭科学技术,2012,40(1):12-15.
[5]刘建军,吕志强,郭敏江.邻近工作面采动影响下巷道矿压规律研究[J].煤炭科技,2009,(1):81-83.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心