本文選題：煤與瓦斯突出　切入點：力學模型　出處：《煤炭技術(shù)》2015年08期 　論文類型：期刊論文

【摘要】：為了根據(jù)煤與瓦斯突出動力現(xiàn)象設(shè)計突出預警系統(tǒng),減少災害事故的發(fā)生,建立了煤與瓦斯突出力學模型。該模型考慮了地應力分布、煤體瓦斯壓力分布與滲流、煤體不均勻性、吸附瓦斯的解吸等瓦斯突出主要影響因素。編制了三維有限元程序,并在此基礎(chǔ)上進行了數(shù)值模擬計算。計算結(jié)果的物理圖像正確合理,表明這個力學模型及三維計算程序可以對典型的工況進行計算模擬,為突出預警提供了參考依據(jù)。
[Abstract]:In order to design an outburst warning system according to the dynamic phenomena of coal and gas outburst and reduce the occurrence of disaster accidents, a mechanical model of coal and gas outburst is established, which takes into account the distribution of in-situ stress, the distribution of gas pressure and seepage of coal body. The main influencing factors of gas outburst, such as the inhomogeneity of coal body and the desorption of adsorbed gas, are analyzed. A three-dimensional finite element program is developed, and the numerical simulation calculation is carried out on the basis of which, the physical images of the calculated results are correct and reasonable. It is shown that the mechanical model and the three-dimensional calculation program can be used to simulate the typical working conditions and provide a reference basis for the outstanding early warning.
【作者單位】： 內(nèi)蒙古科技大學礦業(yè)工程學院;遼寧工程技術(shù)大學礦業(yè)工程學院;
【分類號】：TD713
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本文編號：1612634