| 不同瓦斯压力条件下的煤与瓦斯突出模拟实验 |
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| 引用本文： | 王维忠,陶云奇,许江,彭守建.不同瓦斯压力条件下的煤与瓦斯突出模拟实验[J].重庆大学学报(自然科学版),2010,33(3):82-86. |
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| 作者姓名： | 王维忠 陶云奇 许江 彭守建 |
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| 作者单位： | 重庆大学,西南资源开发及环境灾害控制工程教育部重点实验室,重庆,400044;重庆大学,西南资源开发及环境灾害控制工程教育部重点实验室,重庆,400044;河南省煤层气开发利用有限公司,河南郑州450016 |
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| 基金项目： | 国家自然科学基金重点项目(50534080);;重庆市科技攻关计划重大项目(CSCT,2006AA7002) |
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| 摘 要： | 为探讨瓦斯压力在煤与瓦斯突出过程中的作用机制,利用自主研制的煤与瓦斯突出模拟试验台和同一种煤样,在煤样成型压力、煤样含水率、受力状况等参数均恒定的情况下,分别进行了5种不同瓦斯压力水平下的煤与瓦斯突出模拟实验。结果表明,煤与瓦斯突出可形成口小腹大的呈梨形或椭圆形的突出孔洞,且突出孔洞容积仅为突出煤体积的1/2～2/3;在瓦斯压力方面存在一个使煤与瓦斯突出发生与否的阀值,高于此阀值时,瓦斯压力愈大则突出强度亦愈大,且瓦斯压力作为突出发生的动力同时也对突出煤粉有一定的粉碎和抛出作用;煤样温度呈先升高后降低并连续变化的趋势,利用温度变化梯度可进行煤与瓦斯突出预测预报。
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| 关 键 词： | 煤矿 煤与瓦斯突出 瓦斯压力 温度 |
| 收稿时间： | 2009/11/10 0:00:00 |
Simulation of coal and gas outburst with different gas pressure |
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| WANG Wei zhong,TAO Yun qi,XU Jiang and PENG Shou jian.Simulation of coal and gas outburst with different gas pressure[J].Journal of Chongqing University(Natural Science Edition),2010,33(3):82-86. |
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| Authors: | WANG Wei zhong TAO Yun qi XU Jiang and PENG Shou jian |
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| Institution: | 1.Key Laboratory for the Exploitation of Southwest Resources and Environmental Disaster Control Engineering;Ministry of Education;Chongqing University;Chongqing 400044;P.R.China;2.Henan Provincial Coal Seam Gas development and Utilization CO.;LTD;Zhengzhou 450016;Henan;P.R.China |
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| Abstract: | To discuss the mechanism of gas pressure in coal and gas outburst process,with the constant of moulding pressure,moisture and forced status of the outburst coal sample,five outburst experiments of the different gas pressure are simulated by the independently developed coal and gas outburst simulation test device and the same coal sample.It is found that coal and gas outburst could produce pyriform or elliptic holes with small mouth and big belly.And the volume of hole to the volume of outburst coal is from ... |
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| Keywords: | coal mines coal and gas outburst gas pressure temperature |
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