采動卸壓區域瓦斯解吸規律研究
軟件名稱: | 采動卸壓區域瓦斯解吸規律研究 | |
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軟件大小: | 266.2 KB | |
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軟件登陸: | admin | |
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官方網址: | 官方站 | |
程序演示: | 演示 | |
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整理時間: | 2015-04-21 | |
軟件簡介: | 摘 要:為了找到采動卸壓區域瓦斯解吸規律,對采動卸壓區域瓦斯解吸規律進行了數理分析和公式推演,找到了等效負壓驅動效應和解吸瓦斯應力理論極大值;結合現場試驗分析,探明了采動卸壓條件下瓦斯解吸規律。結果表明:采動卸壓區域煤體應力變化是瓦斯解吸的原始驅動力,且由於等效負壓驅動效應的存在呈現了瓦斯壓力峰值落後於煤體應力峰值現象,且瓦斯壓力峰值小於理論極大值。 關鍵詞:卸壓 瓦斯解吸 瓦斯壓力 煤體應力 等效負壓驅動效應 分類號: X936 TD712Study on gas desorption law of mining pressure relief areaLI Yao-bin , LI Zhong-qing , LIU Jian (1. Key Laboratory of Mining Coal Safety and Efficiently Constructed by Anhui Province and Ministry of Education, Huainan 232001, China; 2. School of Energy and Safety, Anhui University of Science and Technology, Huainan 232001, China)Abstract:To find the gas desorption law of mining pressure relief area, mathematical analysis and formula deduction of gas desorption law of mining pressure relief area are carried out, equivalent negative pressure drive effect and the theory maximum stress of gas desorption are found. And then combined with field test analysis, the gas desorption law is verified. The results showed that the coal stress variation of mining pressure relief area is the original impetus of gas desorption,and due to equivalent negative pressure drive effect the peak gas pressure shows little behind the peak coal stress, and peak value of gas pressure is less than the theory maximum. Keyword:pressure relief; gas desorption; gas pressure; coal stress; equivalent negative pressuredrive effect |
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