發(fā)布時(shí)間：2018-08-08 17:31

【摘要】：采用理論分析、數(shù)值模擬和相似模擬方法對(duì)傳統(tǒng)留煤柱巷道布置和錯(cuò)層位巷道布置進(jìn)行研究。首先確定傳統(tǒng)巷道布置的煤柱寬度,并進(jìn)行合理性驗(yàn)證,以及錯(cuò)層位巷道采用外切式布置;其次根據(jù)錢家營(yíng)煤礦實(shí)際地質(zhì)條件,模擬研究不同寬度煤柱在煤體開(kāi)挖后的圍巖應(yīng)力和變形破壞,得出了12-1煤層區(qū)段煤柱的合理寬度為6m,彈性核寬度為3.2m,與錯(cuò)層位巷道布置進(jìn)行對(duì)比,最后采用相似實(shí)驗(yàn)?zāi)M研究2種巷道布置上覆巖移狀態(tài),為12-1煤層后續(xù)開(kāi)采巷道布置提供依據(jù)。
[Abstract]:Theoretical analysis, numerical simulation and similarity simulation are used to study the layout of traditional coal pillar roadway and staggered roadway. Firstly, the width of the coal pillar in the traditional roadway layout is determined, and the rationality is verified, and the out-of-cut layout is adopted in the staggered roadway. Secondly, according to the actual geological conditions of Qianjiaying Coal Mine, The stress and deformation failure of surrounding rock of coal pillar with different width after excavation is simulated. The reasonable width of pillar is 6 m and the width of elastic core is 3.2 m in section of 12-1 coal seam, which is compared with the layout of staggered roadway. At last, the similar experimental simulation is used to study the overlying rock movement state of two kinds of roadway layout, which provides the basis for the roadway layout of the 12-1 coal seam.
【作者單位】： 中國(guó)礦業(yè)大學(xué)(北京)資源與安全工程學(xué)院;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(51404270) 中央高�；究蒲袠I(yè)務(wù)費(fèi)專項(xiàng)資金項(xiàng)目(2011QZ06)
【分類號(hào)】：TD822.2
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本文編號(hào)：2172507