煤与瓦斯突出模拟试验型煤相似材料研发与特性分析
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摘要
为了解决煤与瓦斯突出物理模拟试验中型煤相似材料的性质与原煤性质相似性低的问题,以典型突出案例为原型,依据煤与瓦斯突出物理模拟相似准则,研发了一种基本物理力学参数调节方便、性质符合原煤相似要求的型煤相似材料。试验分析了粉煤颗粒级配和胶结剂浓度对型煤物理力学参数的影响规律。试验结果表明:型煤的抗压强度、弹性模量、黏聚力均随胶结剂浓度的增加而增大,且抗压强度可调范围在0.5～2 MPa、弹性模量可调范围在55～300 MPa、黏聚力可调范围在60～170 kPa;颗粒级配对型煤的内摩擦角起主要控制作用;型煤具有和原煤相似的吸附性质;相似材料的重复利用试验证明该相似材料具有良好的重复利用性。最后,通过改变颗粒级配和胶结剂浓度配制出了符合煤与瓦斯突出物理模拟相似准则、与原煤性质相似的试验型煤。
In order to solve the problem that the similarity between coal briquette and raw coal samples in outburst model test is too poor to meet the similar criterion requirements. A kind of coal briquette similar material with adjustable basic physical and mechanical parameters is proposed based on typical outburst cases and similar principles of physical simulation coal and gas outburst test. The tests analyzed the law how the grain size distribution of fine coal and concentration of cementing agent influences the physical and mechanical parameters of coal briquette. The experimental result shows that the compression strength, the elasticity modulus and the cohesive force of coal briquette increase when the concentration of cementing agent increases. The adjustable range of the compression strength is 0.5-2 MPa. The range of elasticity parameters is 55-300 MPa and the range of cohesive force is 60-170 kPa. The grain size has dominant effects on the internal friction angle of coal briquette and the coal briquette has similar adsorption property comparing to the raw coal. The recycle test of similar materials proved that this similar material can be well re-used. At last, the experimental coal briquette is proposed by changing the grain size and concentration of cementing agent, which accords with the similar criterion of physical simulation of coal and gas outburst with raw coal.
In order to solve the problem that the similarity between coal briquette and raw coal samples in outburst model test is too poor to meet the similar criterion requirements. A kind of coal briquette similar material with adjustable basic physical and mechanical parameters is proposed based on typical outburst cases and similar principles of physical simulation coal and gas outburst test. The tests analyzed the law how the grain size distribution of fine coal and concentration of cementing agent influences the physical and mechanical parameters of coal briquette. The experimental result shows that the compression strength, the elasticity modulus and the cohesive force of coal briquette increase when the concentration of cementing agent increases. The adjustable range of the compression strength is 0.5-2 MPa. The range of elasticity parameters is 55-300 MPa and the range of cohesive force is 60-170 kPa. The grain size has dominant effects on the internal friction angle of coal briquette and the coal briquette has similar adsorption property comparing to the raw coal. The recycle test of similar materials proved that this similar material can be well re-used. At last, the experimental coal briquette is proposed by changing the grain size and concentration of cementing agent, which accords with the similar criterion of physical simulation of coal and gas outburst with raw coal.
引文
[1]俞启香.矿井瓦斯防治[M].徐州:中国矿业大学出版社,1993:66-79.
[2]鲍利辛柯A A.煤、岩石和瓦斯突出国外资料汇编[M].重庆:科技文献出版社重庆分社,1980:1-9.
[3]YUAN Liang.Control of coal and gas outbursts in Huainan mines in China:a review[J].Journal of Rock Mechanics and Geolechincal Engineering,2016,8(4):559-567.
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[8]李昀,张子新.相似模型试验中土质相似材料的试验研究[C]//中国土木工程学会,中国土木工程学会隧道及地下工程分会.中国土木工程学会第十二届年会暨隧道及地下工程分会第十四届年会论文集.上海:[出版者不详],2006:684-688.
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[10]康向涛,黄滚,邓博知,等.模拟原煤的相似材料试验研究[J].东北大学学报(自然科学版),2015,36(1):138-142.KANG Xiangtao,HUANG Gun,DENG Bozhi,et al.Experimental study on similar material for simulating raw coal[J].Journal of Northeastern University(Natural Science),2015,36(1):138-142.
[11]氏平增之.内部分かス压じよる多孔质材料の破坏づろやスたついてかス突出た关する研究[J].[出版地不详]:日本矿业会志,1984(100):397-403.
[12]许江,陶云奇,尹光志,等.煤与瓦斯突出模拟试验台的研制与应用[J].岩石力学与工程学报,2008,27(11):2354-2362.XU Jiang,TAO Yunqi,YIN Guangzhi,et al.Development and application of coal and gas outburst simulation test device[J].Chinese Journal of Rock Mechanics and Engineering,2008,27(11):2354-2362.
[13]王汉鹏,张庆贺,袁亮,等.含瓦斯煤相似材料研制及其突出试验应用[J].岩土力学,2015,36(6):1676-1682.WANG Hanpeng,ZHANG Qinghe,YUAN Liang,et al.Development of a similar material for methane-bearing coal and its application to outburst experiment[J].Rock and Soil Mechanics,2015,36(6):1676-1682.
[14]欧建春.煤与瓦斯突出演化过程模拟试验研究[D].徐州:中国矿业大学,2012:24-30.
[15]邓全封,栾永祥,王佑安.煤与瓦斯突出模拟试验[J].煤矿安全,1989(11):5-10.DENG Quanfeng,LUAN Yongxiang,WANG You’an.Experimental simulation of coal and gas outbursts[J].Safety in Coal Mines,1989(11):5-10.
[16]董金玉,杨继红,杨国香,等.基于正交设计的模型试验相似材料的配比试验研究[J].煤炭学报,2012,37(1):44-49.DONG Jinyu,YANG Jihong,YANG Guoxiang,et al.Research on similar material proportioning test of model test based on orthogonal design[J].Journal of China Coal Society,2012,37(1):44-49.
[17]张庆贺,王汉鹏,袁亮,等.煤与瓦斯突出物理模拟相似准则建立与分析[J].煤炭学报,2016,41(11):2773-2779.ZHANG Qinghe,WANG Hanpeng,YUAN Liang,et al.Establishment and analysis of similarity criteria for physical simulation of coal and gas outburst[J].Journal of China Coal Society,2016,41(11):2773-2779.
[18]煤炭工业部煤矿安全标准化技术委员会.MT/T 752-1997煤的甲烷吸附量测定方法(高压容量法)[S].北京:中国煤炭工业出版社,1998:87-90.
[19]孙志国.腐植酸钠吸收烟气中SO2和NO2的试验及机制研究[D].上海:上海交通大学,2011:16-19.
[2]鲍利辛柯A A.煤、岩石和瓦斯突出国外资料汇编[M].重庆:科技文献出版社重庆分社,1980:1-9.
[3]YUAN Liang.Control of coal and gas outbursts in Huainan mines in China:a review[J].Journal of Rock Mechanics and Geolechincal Engineering,2016,8(4):559-567.
[4]朱连山.煤与瓦斯突出机理浅析[J].矿业安全与环保,2002,29(2):23-25.ZHU Lianshan.Introduction of coal and gas outburst mechanism[J].Mining Safety&Environmental Protection,2002,29(2):23-25.
[5]陈安敏,顾金才,沈俊,等.地质力学模型试验技术应用研究[J].岩石力学与工程学报,2004,23(22):3785-3789.CHEN Anmin,GU Jincai,SHEN Jun,et al.Application study on the geomechanical model experiment techniques[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(22):3785-3789.
[6]许江,刘东,尹光志,等.非均布荷载条件下煤与瓦斯突出模拟试验[J].煤炭学报,2012,37(5):836-842.XU Jiang,LIU Dong,YIN Guangzhi,et al.Simulation experiment of coal and gas outburst under non-uniform load[J].Journal of China Coal Society,2012,37(5):836-842.
[7]高魁,刘泽功,刘健.基于相似模拟和地质力学模型试验的突出装置研制及应用[J].岩土力学,2015,36(3):711-718.GAO Kui,LIU Zegong,LIU Jian.Design of outburst experiment device based on similar simulation and geomechanical model test and its application[J].Rock and Soil Mechanics,2015,36(3):711-718.
[8]李昀,张子新.相似模型试验中土质相似材料的试验研究[C]//中国土木工程学会,中国土木工程学会隧道及地下工程分会.中国土木工程学会第十二届年会暨隧道及地下工程分会第十四届年会论文集.上海:[出版者不详],2006:684-688.
[9]张建国,魏风清.含瓦斯煤的突出模拟试验[J].矿业安全与环保,2002,29(1):7-12.ZHANG Jianguo,WEI Fengqing.Simulated outburst of coal containing gas test[J].Mining Safety&Envi ronmental Protection,2002,29(1):7-12.
[10]康向涛,黄滚,邓博知,等.模拟原煤的相似材料试验研究[J].东北大学学报(自然科学版),2015,36(1):138-142.KANG Xiangtao,HUANG Gun,DENG Bozhi,et al.Experimental study on similar material for simulating raw coal[J].Journal of Northeastern University(Natural Science),2015,36(1):138-142.
[11]氏平增之.内部分かス压じよる多孔质材料の破坏づろやスたついてかス突出た关する研究[J].[出版地不详]:日本矿业会志,1984(100):397-403.
[12]许江,陶云奇,尹光志,等.煤与瓦斯突出模拟试验台的研制与应用[J].岩石力学与工程学报,2008,27(11):2354-2362.XU Jiang,TAO Yunqi,YIN Guangzhi,et al.Development and application of coal and gas outburst simulation test device[J].Chinese Journal of Rock Mechanics and Engineering,2008,27(11):2354-2362.
[13]王汉鹏,张庆贺,袁亮,等.含瓦斯煤相似材料研制及其突出试验应用[J].岩土力学,2015,36(6):1676-1682.WANG Hanpeng,ZHANG Qinghe,YUAN Liang,et al.Development of a similar material for methane-bearing coal and its application to outburst experiment[J].Rock and Soil Mechanics,2015,36(6):1676-1682.
[14]欧建春.煤与瓦斯突出演化过程模拟试验研究[D].徐州:中国矿业大学,2012:24-30.
[15]邓全封,栾永祥,王佑安.煤与瓦斯突出模拟试验[J].煤矿安全,1989(11):5-10.DENG Quanfeng,LUAN Yongxiang,WANG You’an.Experimental simulation of coal and gas outbursts[J].Safety in Coal Mines,1989(11):5-10.
[16]董金玉,杨继红,杨国香,等.基于正交设计的模型试验相似材料的配比试验研究[J].煤炭学报,2012,37(1):44-49.DONG Jinyu,YANG Jihong,YANG Guoxiang,et al.Research on similar material proportioning test of model test based on orthogonal design[J].Journal of China Coal Society,2012,37(1):44-49.
[17]张庆贺,王汉鹏,袁亮,等.煤与瓦斯突出物理模拟相似准则建立与分析[J].煤炭学报,2016,41(11):2773-2779.ZHANG Qinghe,WANG Hanpeng,YUAN Liang,et al.Establishment and analysis of similarity criteria for physical simulation of coal and gas outburst[J].Journal of China Coal Society,2016,41(11):2773-2779.
[18]煤炭工业部煤矿安全标准化技术委员会.MT/T 752-1997煤的甲烷吸附量测定方法(高压容量法)[S].北京:中国煤炭工业出版社,1998:87-90.
[19]孙志国.腐植酸钠吸收烟气中SO2和NO2的试验及机制研究[D].上海:上海交通大学,2011:16-19.
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