基于覆岩结构的沿空留巷充填体载荷估算方法
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摘要
针对部分充填体载荷设计公式复杂、参数选取随意等造成的留巷失败或浪费等问题,通过分析沿空留巷上覆岩层移动规律,提出了基于采动覆岩结构和ALPS的充填体承载特性,并给出了不同顶板条件下沿空留巷后期充填体载荷的简化估算公式。该估算方法在坚硬及中硬顶板条件下沿空留巷实践中得到成功验证,为沿空留巷充填体的设计提供一定借鉴。
Some formulas of packing body load design were complicated and parameters were hardly determined,which could make gob-side entry retaining failure or materials waste. By analyzing overlying strata structure in gob-side entry,packing body loading characteristics based on overlying strata structure and ALPS were proposed and simplified estimating formula of packing body's stable load in later stage of gob-side entry retaining under different strata was put forward. The method was successfully verified in gob-side entry retaining under medium hard and hard roof,providing experience for design of packing body in gob-side entry retaining.
Some formulas of packing body load design were complicated and parameters were hardly determined,which could make gob-side entry retaining failure or materials waste. By analyzing overlying strata structure in gob-side entry,packing body loading characteristics based on overlying strata structure and ALPS were proposed and simplified estimating formula of packing body's stable load in later stage of gob-side entry retaining under different strata was put forward. The method was successfully verified in gob-side entry retaining under medium hard and hard roof,providing experience for design of packing body in gob-side entry retaining.
引文
[1]宋振骐,崔增娣,夏红春,等.无煤柱矸石充填绿色安全高效开采模式及其工程理论基础研究[J].煤炭学报,2010,35(5):705-710.
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[12]王晓虎,李迎富,华心祝,等.深部复合顶板下沿空留巷巷旁充填体合理宽度研究[J].煤炭工程,2016,48(10):41-44.
[13]林东才,赵一先,栾恒杰.等.沿空留巷巷旁墙体支护强度合理性研究[J].煤炭工程,2016,48(2):47-49.
[14]Wilson,A.H.Stress and Stability in Coal Rib sides and Pillars[C].Proceedings,1st Conference on Ground Control in Mining,Morgantown,WV,1981.
[15]Mark,C.,Analysis of Longwall Pillar Stability[D].PA State Univ,1987.
[16]何凤贞,阚甲广,杨森,等.坚硬顶板下沿空留巷巷旁充填体合理宽度优化研究[J].煤矿开采,2016,21(4):56-59,72.
[2]吴健,孙恒虎.巷旁支护载荷和变形设计[J].矿山压力,1986(2):2-11.
[3]孙恒虎,吴健,邱运新.沿空留巷的矿压规律及岩层控制[J].煤炭学报,1992,17(1):15-24.
[4]李化敏.沿空留巷顶板岩层控制设计[J].岩石力学与工程学报,2000,19(5):651-654.
[5]漆泰岳,郭育光,侯朝炯.沿空留巷整体浇注护巷带适应性研究[J].煤炭学报,1999,24(3):256-260.
[6]涂敏.沿空留巷顶板运动与巷旁支护阻力研究[J].辽宁工程技术大学学报(自然科学版),1999,18(4):347-351.
[7]谭云亮,于凤海,宁建国,等.沿空巷旁支护适应性原理与支护方法[J].煤炭学报,2016,41(2):376-382.
[8]李迎富,华心祝,蔡瑞春.沿空留巷关键块的稳定性力学分析及工程应用[J].采矿与安全工程学,2012,29(3):357-364.
[9]张农,韩昌良,阚甲广,等.沿空留巷围岩控制理论与实践[J].煤炭学报,2014,39(8):1635-1641.
[10]张东升,缪协兴,冯光明,等.综放沿空留巷充填体稳定性控制[J].中国矿业大学学报,2003,32(3):232-235.
[11]李全战,董关杰,卢前明.薄煤层沿空留巷巷旁充填体参数的合理确定[J].煤炭工程,2015,47(3):58-60,64.
[12]王晓虎,李迎富,华心祝,等.深部复合顶板下沿空留巷巷旁充填体合理宽度研究[J].煤炭工程,2016,48(10):41-44.
[13]林东才,赵一先,栾恒杰.等.沿空留巷巷旁墙体支护强度合理性研究[J].煤炭工程,2016,48(2):47-49.
[14]Wilson,A.H.Stress and Stability in Coal Rib sides and Pillars[C].Proceedings,1st Conference on Ground Control in Mining,Morgantown,WV,1981.
[15]Mark,C.,Analysis of Longwall Pillar Stability[D].PA State Univ,1987.
[16]何凤贞,阚甲广,杨森,等.坚硬顶板下沿空留巷巷旁充填体合理宽度优化研究[J].煤矿开采,2016,21(4):56-59,72.