本文選題：特厚煤層 + 自燃“三帶”　； 參考：《金屬礦山》2015年04期

【摘要】：針對(duì)特厚煤層綜放開采過程中工作面推進(jìn)速度慢、采空區(qū)遺煤量大、漏風(fēng)嚴(yán)重、極易自燃的特點(diǎn),建立特厚煤層綜放開采采空區(qū)滲流及擴(kuò)散數(shù)學(xué)模型。利用富力礦-380 m前部22#層采空區(qū)的特征,對(duì)該特厚煤層采空區(qū)作出相應(yīng)的假設(shè),對(duì)該工作面采空區(qū)自燃"三帶"進(jìn)行劃分,最終確定氧化帶為采后距工作面25~60 m的范圍。根據(jù)模擬結(jié)果,采取注氮注漿防滅火措施,取得較好的效果。利用該工作面現(xiàn)場(chǎng)數(shù)據(jù)進(jìn)行數(shù)據(jù)擬合,驗(yàn)證防火措施效果,較好地達(dá)到防滅火的目的。
[Abstract]:In view of the characteristics of low speed of working face, large amount of coal left in goaf, serious air leakage and easy spontaneous combustion in the process of fully mechanized caving mining in ultra-thick coal seam, a mathematical model of seepage and diffusion in goaf of fully mechanized caving in ultra-thick coal seam is established. Based on the characteristics of the goaf in front of -380m in Fuli Coal Mine, this paper makes a corresponding assumption on the goaf of the extra thick coal seam, divides the "three zones" of spontaneous combustion in the goaf of this working face, and finally determines the oxidation zone as the range of 2560m from the working face after mining. According to the simulation results, the measures of preventing and extinguishing fire by nitrogen injection grouting have been adopted and good results have been obtained. The field data of the working face are used to fit the data to verify the effect of fire prevention measures and to achieve the purpose of fire prevention and fire control.
【作者單位】： 遼寧工程技術(shù)大學(xué)礦業(yè)學(xué)院;遼寧工程技術(shù)大學(xué)安全科學(xué)與工程學(xué)院;冀中能源集團(tuán)有限責(zé)任公司冀中股份邢東礦;
【基金】：國家自然科學(xué)基金青年科學(xué)基金項(xiàng)目(編號(hào):51404127)
【分類號(hào)】：TD752.2

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6 肖e，

本文編號(hào)：2058705