摘要
以自行研制开发的大型煤与瓦斯突出模拟试验系统为手段,对其可靠性进行试验验证,并对不同含水率煤体发生煤与瓦斯突出时突出强度变化规律进行模拟试验研究。结果表明:研制开发的大型煤与瓦斯突出模拟试验系统的模拟试验结果与煤与瓦斯突出事故实际较吻合,且系统可靠性较好;随着含水率的升高,煤体发生煤与瓦斯突出的可能性减小,煤与瓦斯突出强度也呈减小趋势;在试验煤体含水率情况下,含水率与煤与瓦斯突出强度呈二次曲线关系。
Based on self-developed large-scale simulation test system of coal and gas outburst, experimental verification of its reliability is carded out; and experimental study of simulation of variation laws of intensity of coal and gas outburst is done under different water contents of coal as well. It is shown that： （1） the simulation results obtained by the large scale simulation test system of coal and gas outburst are fairly consistent with actual results of coal and gas outburst; （2） the reliability is satisfactory; （3） both possibility and intensity of coal and gas outburst decrease with the increase of water contents of coal; and （4） under the test conditions, the relationship between the water contents and intensity of coal and gas outburst is conic.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2009年第8期1674-1680,共7页
Chinese Journal of Rock Mechanics and Engineering
基金
国家自然科学基金资助项目(50874124)
国家重点基础研究发展计划(973)项目(2005CB221502)
国家自然科学基金重点项目(50534080)
重庆市自然科学基金计划重点项目(CSTC
2008BA6028)
关键词
采矿工程
煤与瓦斯突出
模拟试验
突出强度
煤体含水率
可靠性
mining engineering
coal and gas outburst
simulation test
intensity of outburst
water content of coal
reliability
