竖向动载下巷道支护相似模拟试验装置的研制
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摘要
为研制用于动压巷道支护技术相似模拟研究的试验装置,从采动压力出发分析归纳了采动的静压效应和动压效应,以此为设计思想,设计制造了新型的动压巷道支护相似模拟试验装置,给出了相应试验过程的设计,并进行了测试试验。研究表明:具有内、外框架嵌套式结构的新型试验装置可通过静载油缸模拟超前支承压力及侧向支承压力,并通过动载油缸模拟由采区顶板断裂、垮落等因素产生的振动荷载。测试结果表明新型装置可实现静、动荷载的同时加载,互不干扰;新型试验装置模拟的巷道模型破坏规律符合巷道破坏的一般规律,试验结果真实可靠。
For developing similar simulation equipment for roadway support subjected to dynamic pressure,the dynamic and static pressure effects related to mining are analyzed and summarized,which becomes the design idea for manufacturing the new similar simulation equipment to study the support technology of dynamic pressure roadway.Then the design of test processes is given,and the relevant experiments are performed.The results show that the inner-frame and outer-frame are the designed nested structure in the new equipment.The pressures on lead abutment and side abutment can be simulated by using the static load cylinder,and the vibration caused by mining such as roof breaking and roof caving can be simulated by using the vibrating cylinder.The new equipment makes reliable static and dynamic loads and is applied synchronously without interference.The failure laws of the roadway in the tests accord with the general ones of roadway damage,and the test results are reliable.
For developing similar simulation equipment for roadway support subjected to dynamic pressure,the dynamic and static pressure effects related to mining are analyzed and summarized,which becomes the design idea for manufacturing the new similar simulation equipment to study the support technology of dynamic pressure roadway.Then the design of test processes is given,and the relevant experiments are performed.The results show that the inner-frame and outer-frame are the designed nested structure in the new equipment.The pressures on lead abutment and side abutment can be simulated by using the static load cylinder,and the vibration caused by mining such as roof breaking and roof caving can be simulated by using the vibrating cylinder.The new equipment makes reliable static and dynamic loads and is applied synchronously without interference.The failure laws of the roadway in the tests accord with the general ones of roadway damage,and the test results are reliable.
引文
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[13]王钰博.特厚煤层综放工作面端部结构及侧向支承压力演化机理[J].煤炭学报,2017,42(增刊1):30-35.(WANGYu-bo.Evolution mechanism of end structure and abutment pressure on fully-mechanized top coal caving face in extra thick coal seam[J].Journal of China Coal Society,2017,42(S1):30-35.(in Chinese))
[14]单仁亮,黄博,宋永威,等.新峪矿采空区下近距离巷道矿压特征研究[J].矿业科学学报,2016,1(1):29-37.(SHAN Ren-liang,HUANG Bo,SONG Yong-wei,et al.Ground pressure features of roadway under close range goaf in the Xinyu Mine[J].Journal of Mining Science and Technology,2016,1(1):29-37.(in Chinese))
[15]王家臣,王兆会.高强度开采工作面顶板动载冲击效应分析[J].岩石力学与工程学报,2015,34(增刊2):3987-3997.(WANG Jia-chen,WANG Zhao-hui.Impact effect of dynamic load induced by roof in high-intensity mining face[J].Chinese Journal of Rock Mechanics and Engineering,2015,34(S2):3987-3997.(in Chinese))
[16]曹安业.采动煤岩冲击破裂的震动效应及其应用研究[D].徐州:中国矿业大学,2009.(CAO An-ye.Research on seismic effort of burst and failure of coal-rock mass associated with mining and its application[D].Xuzhou:China University of Mining and Technology,2009.(in Chinese))
[17]张少泉,张兆平,杨懋源,等.矿山冲击的地震学研究与开发[J].中国地震,1993,9(1):1-8.(ZHANG Shao-quan,ZHANG Zhao-ping,YANG Mao-yuan,et al.The seismological research and development on mining tremors[J].Earthquake Research in China,1993,9(1):1-8.(in Chinese))
[18]笠原庆一.地震力学[M].北京:地震出版社,1984.(KASAHARA K.Earthquake mechanics[M].Beijing:Seismological Press,1984.(in Chinese))
[2]杨立云,杨仁树,马佳辉,等.大型深部矿井建设模型试验系统研制[J].岩石力学与工程学报,2014,33(7):1424-1431.(YANG Li-yun,YANG Ren-shu,MA Jia-hui,et al.Development of a model test system for deep mine construction[J].Chinese Journal of Rock Mechanics and Engineering,2014,33(7):1424-1431.(in Chinese))
[3]李国彪.干河煤矿大断面巷道围岩稳定性分析及控制技术研究[D].北京:中国矿业大学(北京),2013.(LI Guo-biao.Research on the surrounding rock stability and control techniques of large section roadway in Ganhe Coal Mine[D].Beijing:China University of Mining and Technology(Beijing),2013.(in Chinese))
[4]闫振东.大断面煤巷支护技术试验研究及新型锚杆机研发应用[D].北京:中国矿业大学(北京),2010.(YANZhen-dong.Research on support technology experiment of large section coal roadway and development of new roof bolter for coal mine[D].Beijing:China University of Mining and Technology(Beijing),2010.(in Chinese))
[5]吕秀江.煤巷掘进影响区动态应力响应及对动力灾害影响研究[D].北京:中国矿业大学(北京),2014.(LüXiu-jiang.Research on the dynamic mechanical response of driving affected zone in coal roadway and its effect on dynamic disaster[D].Beijing:China University of Mining and Technology(Beijing),2014.(in Chinese))
[6]陈登红.深部典型回采巷道围岩变形破坏特征及控制机理研究[D].淮南:安徽理工大学,2014.(CHEN Deng-hong.Research on fractured deformation characteristics and control mechanism of surrounding rock on deep typical gateways[D].Huainan:Anhui University of Science and Technology,2014.(in Chinese))
[7]李迎富.二次沿空留巷围岩稳定性控制机理研究[D].淮南安徽理工大学,2012.(LI Ying-fu.Research on controlling mechanism of surrounding rock stability of the secondary gob-side entry retaining[D].Huainan:Anhui University of Science and Technology,2012.(in Chinese))
[8]单仁亮,黄博,白瑶,等.动压巷道支护物理模型试验装置及方法:中国,2015110213719[P].2017-05-31.(SHANRen-liang,HUANG Bo,BAI Yao,et al.Physical model experiment and test method for roadway support subjected to dynamic pressure:China,2015110213719[P].2017-05-31.(in Chinese))
[9]陆士良.无煤柱区段巷道的矿压显现及适用性的研究[J].中国矿业学院学报,1980(4):1-22.(LU Shi-liang.Roadways in pillarless districts:occurrence of mine pressure and adaptability[J].Journal of China University of Mining and Technology,1980(4):1-22.(in Chinese))
[10]宋振骐,宋扬,刘义学,等.关于采场支承压力的显现规律及其应用[J].山东矿业学院学报,1982(1):1-25.(SONG Zhen-qi,SONG Yang,LIU Yi-xue,et al.Behavior regularity of abutment pressure in stope and its application[J].Journal of Shandong University of Science and Technology(Natural Science),1982(1):1-25.(in Chinese))
[11]宋振骐,蒋金泉,宋扬.关于采场巷道矿压控制设计问题[J].山东矿业学院学报,1985(3):1-11.(SONG Zhen-qi,JIANG Jin-quan,SONG Yang.Design of strata control in roadways ground working faces[J].Journal of Shandong University of Science and Technology(Natural Science),1985(3):1-11.(in Chinese))
[12]谢广祥,杨科,刘全明.综放面倾向煤柱支承压力分布规律研究[J].岩石力学与工程学报,2006,25(3):545-549.(XIE Guang-xiang,YANG Ke,LIU Quan-ming.Study on distribution laws of stress in inclined coal pillar for fully-mechanized top-coal caving face[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(3):545-549.(in Chinese))
[13]王钰博.特厚煤层综放工作面端部结构及侧向支承压力演化机理[J].煤炭学报,2017,42(增刊1):30-35.(WANGYu-bo.Evolution mechanism of end structure and abutment pressure on fully-mechanized top coal caving face in extra thick coal seam[J].Journal of China Coal Society,2017,42(S1):30-35.(in Chinese))
[14]单仁亮,黄博,宋永威,等.新峪矿采空区下近距离巷道矿压特征研究[J].矿业科学学报,2016,1(1):29-37.(SHAN Ren-liang,HUANG Bo,SONG Yong-wei,et al.Ground pressure features of roadway under close range goaf in the Xinyu Mine[J].Journal of Mining Science and Technology,2016,1(1):29-37.(in Chinese))
[15]王家臣,王兆会.高强度开采工作面顶板动载冲击效应分析[J].岩石力学与工程学报,2015,34(增刊2):3987-3997.(WANG Jia-chen,WANG Zhao-hui.Impact effect of dynamic load induced by roof in high-intensity mining face[J].Chinese Journal of Rock Mechanics and Engineering,2015,34(S2):3987-3997.(in Chinese))
[16]曹安业.采动煤岩冲击破裂的震动效应及其应用研究[D].徐州:中国矿业大学,2009.(CAO An-ye.Research on seismic effort of burst and failure of coal-rock mass associated with mining and its application[D].Xuzhou:China University of Mining and Technology,2009.(in Chinese))
[17]张少泉,张兆平,杨懋源,等.矿山冲击的地震学研究与开发[J].中国地震,1993,9(1):1-8.(ZHANG Shao-quan,ZHANG Zhao-ping,YANG Mao-yuan,et al.The seismological research and development on mining tremors[J].Earthquake Research in China,1993,9(1):1-8.(in Chinese))
[18]笠原庆一.地震力学[M].北京:地震出版社,1984.(KASAHARA K.Earthquake mechanics[M].Beijing:Seismological Press,1984.(in Chinese))