群力礦煤與瓦斯突出災(zāi)變時期通風(fēng)系統(tǒng)紊亂研究
[Abstract]:Based on the theory of active air network, this paper studies the migration law of outburst gas in mine roadway and the influence of outburst gas on the whole mine ventilation system during coal and gas outburst disaster period. The dynamic process of coal and gas outburst in group coal mine is simulated by using TF1M program software written by MATLAB for the study of ventilation system during catastrophic period as an analysis tool. The active wind net is used to describe the ventilation system with outburst gas, and the coal and gas outburst source model is constructed, and the diffusion and migration law of outburst gas in the roadway is solved by one-dimensional finite element method. The method of characteristic line is used to solve the gas dynamic instability process in outburst roadway. Finally, the ventilation network and gas distribution model under unstable conditions are established. When coal and gas outburst occurs, ventilation system goes through three processes: outburst dynamic process, natural flow process and recovery ventilation process. After outburst, gas is poured into the main ventilation roadway under the action of outburst source power, which leads to the gas countercurrent in the air entry roadway. The gas released by outburst flows and diffuses in the mine, which leads to the uneven distribution of gas in each roadway in the mine ventilation system, resulting in the natural air pressure of gas. Under the influence of natural gas wind pressure, the phenomenon of air flow reversal occurs in the local loop of mine, and the scope of gas sweep will be enlarged at the same time.
【學(xué)位授予單位】:遼寧工程技術(shù)大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2013
【分類號】:TD713;TD724
【參考文獻(xiàn)】
相關(guān)期刊論文 前10條
1 李宗翔;王德民;溫永宇;;礦井3D風(fēng)網(wǎng)圖及基于MATLAB仿真編程實現(xiàn)[J];安全與環(huán)境學(xué)報;2010年06期
2 黃雙杰,馬心校,蔡櫻;突出瓦斯對通風(fēng)系統(tǒng)影響的計算[J];礦業(yè)安全與環(huán)保;2000年02期
3 高運(yùn)增;周心權(quán);王潤華;;煤礦井下爆炸煙氣動態(tài)稀釋規(guī)律研究[J];礦業(yè)安全與環(huán)保;2006年02期
4 張仁松,唐繼東;礦井瓦斯對風(fēng)流穩(wěn)定性影響的探討[J];煤炭工程師;1997年05期
5 余楚新,鮮學(xué)福,譚學(xué)術(shù);煤層瓦斯流動理論及滲流控制方程的研究[J];重慶大學(xué)學(xué)報(自然科學(xué)版);1989年05期
6 程衛(wèi)民;王剛;周剛;陳連軍;;煤與瓦斯突出后對防突風(fēng)門破壞的數(shù)值模擬[J];重慶大學(xué)學(xué)報;2009年03期
7 高建良;羅娣;;巷道風(fēng)流中瓦斯逆流現(xiàn)象的數(shù)值模擬[J];重慶大學(xué)學(xué)報;2009年03期
8 王樹剛,王繼仁,桂祥友;礦內(nèi)空氣非定常流動規(guī)律研究[J];遼寧工程技術(shù)大學(xué)學(xué)報(自然科學(xué)版);1998年04期
9 李宗翔;劉宇;于景曉;賈進(jìn)章;;突出瓦斯流與礦井通風(fēng)系統(tǒng)耦合移動仿真[J];重慶大學(xué)學(xué)報;2012年11期
10 丁曉良,俞善炳,丁雁生,寇紹全,談慶明,鄭哲敏;煤在瓦斯?jié)B流作用下持續(xù)破壞的機(jī)制[J];中國科學(xué)(A輯 數(shù)學(xué) 物理學(xué) 天文學(xué) 技術(shù)科學(xué));1989年06期
相關(guān)博士學(xué)位論文 前1條
1 楊守國;煤與瓦斯突出判識及災(zāi)害氣體運(yùn)移規(guī)律研究[D];重慶大學(xué);2011年
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