Case study on microseismic effect of coal and gas outburst process
Case study on microseismic effect of coal and gas outburst process
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DOI：
10.1016/j.ijrmms.2012.05.009
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发表时间：
2012-07-01
影响因子：
7.2
通讯作者：
Du, Bin-Bin
中科院分区：
文献类型：
--
作者：
Lu, Cai-Ping;Dou, Ling-Ming;Du, Bin-Bin
自1843年法国卢瓦尔煤田伊萨克煤矿首次报道煤与瓦斯突出以来[1]，这一灾害在大多数产煤国都有发生，并对煤矿安全生产提出了挑战[2-4]。Lama和Bodziony [1]报告说，全世界已经发生了超过30，000次爆发，但其中只有大约10，000次发生在中国。近年来，中国发生了14,000多起突出事故[5]，许多学者研究了突出与地质因素的关系，如煤层厚度、煤阶、煤层年龄、现今埋深、距岩体的距离等，但由于其成因机制的复杂性，不同煤田和地区的研究结论不尽相同。煤与瓦斯突出是一种由开采引起的工程地质灾害，在澳大利亚、加拿大、中国、欧洲、日本、美国、俄罗斯等地都有发生。此外，煤与瓦斯突出有时会间接引起瓦斯燃烧爆炸，造成重大的财产损失和人员伤亡。煤与瓦斯突出、瓦斯粉尘诱发爆炸仍是危害安全生产的第一位，其预测与防治工作是全球性的课题。煤与瓦斯突出本质上是一个功能与能量的转换过程，是将源的势能积累转化为动能。突出过程一般可分为激发和发生两个阶段，这两个阶段有时可以明显区分，但区分这两个阶段非常困难，
Since the first reported coal and gas outburst occurred in the Issac Colliery, Loire coal field, France, in 1843 [1], this hazard has occurred in most coal-producing countries and has posed a challenge to coal mine safety production [2–4]. Lama and Bodziony [1] reported that over 30,000 outbursts have occurred worldwide, but their total included only about 10,000 in China. More recent reports showed more than 14,000 outbursts have occurred in China [5].Many researchers have studied relationships between coal outbursts and geological factors, such as coal seam thickness, coal rank, coal seam age, current burial depth, and distance to plutons, with different conclusions for different coal fields and regions because of the complexity of the causative mechanisms. Coal and gas outburst is an engineering geological hazard by mining, and in Australia, Canada, China, Europe, Japan, the United States, and Russia, this hazard often happened. Besides, gas combustion and explosion was sometimes caused indirectly by coal and gas outburst, which would cause substantial damage to property and casualties. Coal and gas outburst, gas and dust explosion induced is still the first harm to safety production, its prediction and prevention work is global issue. Coal and gas outburst essentially is a conversion process between function and energy, which converts the potential accumulated energy of the source into the kinetic energy. Outburst process generally can be divided into two stages: stimulation and occurrence, which sometimes can be distinguished obviously, however, it is very difficult to distinguish these two stages because