• 中文核心期刊
  • 中国科技核心期刊
  • RCCSE中国核心学术期刊

褶曲构造对煤巷围岩破裂范围及动压影响分析

展亚太, 王金安, 李飞, 韩现刚

展亚太, 王金安, 李飞, 韩现刚. 褶曲构造对煤巷围岩破裂范围及动压影响分析[J]. 煤矿安全, 2018, 49(9): 257-261.
引用本文: 展亚太, 王金安, 李飞, 韩现刚. 褶曲构造对煤巷围岩破裂范围及动压影响分析[J]. 煤矿安全, 2018, 49(9): 257-261.
ZHAN Yatai, WANG Jin’an, LI Fei, HAN Xiangang. Influence of Folding Structure on Cracking Zone and Dynamic Pressure of Coal Roadway Surrounding Rock[J]. Safety in Coal Mines, 2018, 49(9): 257-261.
Citation: ZHAN Yatai, WANG Jin’an, LI Fei, HAN Xiangang. Influence of Folding Structure on Cracking Zone and Dynamic Pressure of Coal Roadway Surrounding Rock[J]. Safety in Coal Mines, 2018, 49(9): 257-261.

褶曲构造对煤巷围岩破裂范围及动压影响分析

Influence of Folding Structure on Cracking Zone and Dynamic Pressure of Coal Roadway Surrounding Rock

  • 摘要: 以褶曲地质构造力学机理及其对煤巷围岩破裂范围和动压的影响为研究重点,采用矿山压力理论、现场原位试验和数值模拟等方法对窑街天祝煤矿3200工作面运输巷进行褶曲构造的力学分析,结合现场煤巷围岩破裂范围的声学测试结果,利用FLAC3D软件对采场褶曲地质构造三维矿压分布以及动力扰动下巷道围岩力学响应进行了数值模拟。研究表明:褶曲不同部位对应不同的应力状态,其中向斜部位构造应力最大,也最容易发生动压灾害,褶曲翼部构造应力次之,背斜部位最小;向斜部位对应煤巷松动范围最大,过渡段次之,背斜部位最小;煤巷向斜区段煤壁前方支承压力更为集中,顶板沉降位移最大且同等程度动力扰动下该位置巷道变形及塑性破坏范围最大,发生冒顶、动压灾害的可能性也最大。
    Abstract: Taking the mechanical mechanism of folding structure and its influence on cracking zone of roadway surrounding rock and dynamic pressure as research emphases, mine pressure theory, in-situ acoustic measurement and numerical simulation and other methods are used to carry out the mechanical analysis on the folding structures of transport roadway of 3200 working face in Tianzhu Yaojie Coal Mine. Combined the acoustic test results of the surrounding rock fracture range of coal roadway, FLAC3D software was used to simulate the three-dimensional distribution of stope mine pressure with folding structure and mechanical response of roadway surrounding rocks under dynamic disturbance. The study shows that different parts of the fold correspond to different stress state, among them, the tectonic stress in the synclinal part is the largest and the dynamic pressure disaster is the most likely to occur, followed by folded wings of tectonic stress, and anticline site is the smallest; the loose range of coal roadway is the largest at the synclinal part, followed by the transition section, and the anticlinal part is the smallest; the abutment pressure is more concentrated in front of the coal wall of coal roadway in syncline area, roof subsidence displacement is the biggest and roadway deformation and the plastic failure scope are the largest under the same degree of dynamic disturbance, and the possibility of roof collapse and dynamic pressure disasters is also the greatest.
  • [1] 刘高,聂德新,韩文峰.高应力软岩巷道围岩变形破坏研究[J].岩石力学与工程学报,2000,19(6):726.
    [2] 邹磊,来兴平,王宁波,等.复杂地质条件下极斜厚煤层巷道变形特征[J].西安科技大学学报,2010,30(2):145-149.
    [3] 余伟健,冯涛,王卫军,等.南方复杂条件下的薄煤层开采巷道围岩支护问题及对策[J].煤炭学报,2015, 40(10):2370-2379.
    [4] 王存文,姜福兴,刘金海.构造对冲击地压的控制作用及案例分析[J].煤炭学报,2012,37(S2):263-268.
    [5] 顾士坦,黄瑞峰,谭云亮,等.背斜构造成因机制及冲击地压灾变机理研究[J].采矿与安全工程学报,2015, 32(1):59-64.
    [6] 贺虎,窦林名,巩思园,等.高构造应力区矿震规律研究[J].中国矿业大学学报,2011,40(1):7-13.
    [7] 康红普,吴志刚,高富强,等.煤矿井下地质构造对地应力分布的影响[J].岩石力学与工程学报,2012,31(S1):2674-2680.
    [8] 陈国祥,窦林名,乔中栋,等.褶皱区应力场分布规律及其对冲击矿压的影响[J].中国矿业大学学报,2008, 37(6):751-755.
    [9] 王玉刚.褶皱附近冲击矿压规律及其控制研究[D].徐州:中国矿业大学,2008.
    [10] 王应启.济三煤矿6303工作面巷帮煤体冲击矿压机理研究[J].煤炭工程,2007(1):60-62.
    [11] 陈国祥,郭兵兵,窦林名.褶皱区工作面开采布置与冲击地压的关系探讨[J].煤炭科学技术,2010,38(10):27-30.
    [12] 徐坤,王志杰,孟祥磊,等.深埋隧道围岩松动圈探测技术研究与数值模拟分析[J].岩土力学,2013,34(S2):464-470.
    [13] 黄锋,朱合华,李秋实,等.隧道围岩松动圈的现场测试与理论分析[J].岩土力学,2016,37(S1):145.
    [14] 龙源,冯长根,徐全军,等.爆破地震波在岩石介质传播特性与数值计算研究[J].工程爆破,2000,6(3):1-7.
计量
  • 文章访问数:  106
  • HTML全文浏览量:  0
  • PDF下载量:  0
  • 被引次数: 0
出版历程
  • 发布日期:  2018-09-19

目录

    /

    返回文章
    返回