工作面跨巷道开采的安全岩柱厚度与加强支护技术
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
为保障大采高工作面跨石门巷道开采过程中的生产安全,通过理论分析建立了大采高工作面跨巷道开采的力学模型,并定义了工作面与石门巷道之间的安全岩柱厚度;根据分析结果设计了石门巷道的支护方式和工作面跨巷道开采的进度安排,同时对开采过程进行了矿山压力监测。研究结果表明:合理的安全岩柱厚度由工作面底板破坏深度、石门巷道顶板破坏高度和承载岩柱厚度3部分组成,石门巷道的分区段加固方式可以最大限度地节约支护成本,大采高工作面跨巷道开采过程中的支架工作阻力没有发生异常变化,表明石门巷道加固达到了预期效果,实现了大采高工作面跨石门巷道的安全开采。
In order to guarantee the production safety during the great height working face striding crosscuts,the mechanical model was set up through theoretical analysis.The thickness of safety rock stratum between working face and crosscuts was redefined.Based on the analyzing results,the support pattern of crosscuts and mining process arrangement were designed,at the same time,the mine ground pressure was observed.The results show that the possible thickness of safety rock stratum is composed of the breakage depth of working face baseboard,the breakage height of crosscut roof and the thickness of bearing rock stratum.The support patterns in different subarea to crosscuts can save the support cost in furthest.The working resistances of hydraulic supports do not change in unusual,which indicates that the support pattern of crosscuts has attained desired effect,and the safety production of great height mining face striding crosscuts is realized.
引文
[1]张学臣,李大勇,陈士海,等.跨采巷道的围岩稳定性预测与控制[J].采矿与安全工程学报,2008,25(3):361-365.Zhang Xuechen,Li Dayong,Chen Shihai,et al.Stability predictionand control of surrounding rocks for roadway affected by overheadmining[J].Journal of Mining and Safety Engineering,2008,25(3):361-365.
    [2]谢文兵,史振凡,殷少举.近距离跨采对巷道围岩稳定性影响分析[J].岩石力学与工程学报,2004,23(12):1986-1991.Xie Wenbing,Shi Zhenfan,Yin Shaoju.Stability analysis of sur-rounding rock masses of roadway under overhead mining[J].Chi-nese Journal of Rock Mechanics and Engineering,2004,23(12):1986-1991.
    [3]严国超,胡耀青,宋选民,等.极近距离薄煤层群联合开采常规错距理论与物理模拟[J].岩石力学与工程学报,2009,28(3):591-597.Yan Guochao,Hu Yaoqing,Song Xuanmin,et al.Theory and physi-cal simulation of conventional staggered distance during combinedmining of ultra-close thin coal seam group[J].Chinese Journal ofRock Mechanics and Engineering,2009,28(3):591-597.
    [4]柏建彪,侯朝炯.空巷顶板稳定性原理及支护技术研究[J].煤炭学报,2005,30(1):8-11.Bai Jianbiao,Hou Chaojiong.Research on principle of roof stabilityof abandoned workings and supporting technology[J].Journal ofChina Coal Society,2005,30(1):8-11.
    [5]姜福兴,马其华.深部长壁工作面动态支承压力极值点的求解[J].煤炭学报,2002,27(3):273-275.Jiang Fuxing,Ma Qihua.Mechanical solution of the maximum pointof dynamic abutment pressure under deep long-wall working face[J].Journal of China Coal Society,2002,27(3):273-275.
    [6]李树清,王卫军,潘长良.加固底板对深部软岩巷道两帮稳定性影响的数值分析[J].煤炭学报,2007,32(2):123-126.Li Shuqing,Wang Weijun,Pan Changliang.Numerical analysis oninfluence of reinforcing floor on stability of sides in deep soft rockroadways[J].Journal of China Coal Society,2007,32(2):123-126.
    [7]韩斌,王贤来,文有道.不良岩体巷道的湿喷混凝土支护技术[J].中南大学学报(自然科学版),2012,41(6):2381-2384.Han Bin,Wang Xianlai,Wen Youdao.Drift support technology withwet shotcrete method in weak rock mass[J].Journal of Central SouthUniversity(Science and Technology),2012,41(6):2381-2384.
    [8]庞建勇,郭兰波.半刚性网壳锚喷支护及其在跨采巷道中的应用[J].土木工程学报,2005,38(3):8-11.Pang Jianyong,Guo Lanbo.Semi-rigid wire-shell bolting shotcretesupport and its applications in dynamic pressure tunnels[J].ChinaCivil Engineering Journal,2005,38(3):8-11.
    [9]郭子红,刘新荣,舒志乐.深埋隧道围岩滑移面验证及稳定性分析[J].中南大学学报(自然科学版),2012,43(1):315-321.Guo Zihong,Liu Xinrong,Shu Zhile.Verification of deep tunnel rockmass sliding surface and stability analysis[J].Journal of CentralSouth University(Science and Technology),2012,43(1):315-321.
    [10]蒋金泉,冯增强,韩继胜.跨采巷道围岩结构稳定性分类与支护参数决策[J].岩石力学与工程学报,1999,18(1):81-85.Jiang Jinquan,Feng Zengqiang,Han Jisheng.Classification of struc-tural stability of surrounding rocks of roadway affected by overhead mining and decision making of support parameters[J].Chinese Journal of Rock Mechanics and Engineering,1999,18(1):81-85.
    [11]林登阁,宋克志.跨采软岩巷道锚注支护试验研究[J].岩土力学,2002,23(2):238-241.Lin Dengge,Song Kezhi.Research on support of bolt-grouting of roadway in cross-mined and soft rock[J].Rock and Soil Mechanics,2002,23(2):238-241.
    [12]谭正华,王李管,熊书敏,等.基于实测边界线的地下巷道三维建模方法[J].中南大学学报(自然科学版),2012,43(2):626631.Tan Zhenghua,Wang Liguan,Xiong Shumin,et al.3D modeling method for laneway entities based on measured boundary lines[J].Journal of Central South University(Science and Technology),2012,43(2):626-631.
    [13]李学华,姚强岭,张农,等.高水平应力跨采巷道围岩稳定性模拟研究[J].采矿与安全工程学报,2008,25(4):420-425.Li Xuehua,Yao Qiangling,Zhang Nong,et al.Numerical simulation of stability of surrounding rock in high horizontal stress roadway under overhead mining[J].Journal of Mining and Safety Engineering,2008,25(4):420-425.
    [14]谭正华,王李管,熊书敏,等.一种新的复杂地质体采矿工程剖面图自动生成方法[J].中南大学学报(自然科学版),2012,43(3):1092-1097.Tan Zhenghua,Wang Liguan,Xiong Shumin,et al.A new method for automatic generation of complex geological mining engineer profile chart[J].Journal of Central South University(Science and Technology),2012,43(3):1092-1097.
    [15]高富强,康红普,林健.深部巷道围岩分区破裂化数值模拟[J].煤炭学报,2010,35(1):21-25.Gao Fuqiang,Kang Hongpu,Lin Jian.Numerical simulation of zonal distrigation of surrounding rock mass in deep mine roadways[J].Journal of China Coal Society,2010,35(1):21-25.
    [16]李栋伟,汪仁和,范菊红.基于卸荷试验路径的泥岩变形特征及数值计算[J].煤炭学报,2010,35(3):387-391.Li Dongwei,Wang Renhe,Fan Juhong.The deformation properties of mudstone and numerical calculation based on unloading path[J].Journal of China Coal Society,2010,35(3):387-391.
    [17]钱鸣高,石平五.矿山压力与岩层控制[M].徐州:中国矿业大学出版社,2003.Qian Minggao,Shi Pingwu.Mine pressure and ground control[M].Xuzhou:China University of Mining and Technology Press,2003.
    [18]周小平,黄煜镔,丁志诚.考虑中间主应力的太沙基地基极限承载力公式[J].岩石力学与工程学报,2002,21(10):15541556.Zhou Xiaoping,Huang Yubin,Ding Zhicheng.Influence of intermediate principal stress on the formula of Terzaghi ultimate bearing capacity of foundations[J].Chinese Journal of Rock Mechanics and Engineering,2002,21(10):1554-1556.
    [19]王文星.岩体力学[M].长沙:中南大学出版社,2004.Wang Wenxing.Rock mechanics[M].Changsha:Central South University Press,2004.
    [20]吴兆营,薄景山,刘红帅,等.岩体边坡地震稳定性动安全系数分析方法[J].防灾减灾工程学报,2004,24(3):237-241.Wu Zhaoying,Bo Jingshan,Liu Hongshuai,et al.A method for evaluating dynamic safety factor rock slope seismic stability analysis[J].Journal of Disaster Prevention and Mitigation Engineering,2004,24(3):237-241.

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