本文選題：煤炭開采　切入點：地裂縫　出處：《生態(tài)與農(nóng)村環(huán)境學(xué)報》2016年02期 　論文類型：期刊論文

【摘要】：淺埋煤層開采引起地表出現(xiàn)大量地裂縫,部分地裂縫自我修復(fù)后閉合程度較好,但大部分地裂縫難以閉合而發(fā)展成為永久裂縫。在進行生態(tài)重建工作時,地裂縫及其周邊植被狀況關(guān)系到礦區(qū)生態(tài)重建的效果。以大柳塔礦區(qū)2003、2004和2005年開采的工作面為例,利用現(xiàn)場勘測和內(nèi)業(yè)統(tǒng)計分析方法,首先結(jié)合井下開采布置圖對地裂縫的空間分布進行分析,然后利用Arc GIS 10.0軟件提取地裂縫及其周邊植被信息,統(tǒng)計分析地裂縫周邊植被指數(shù)均值變化情況。研究發(fā)現(xiàn),地裂縫主要分布在開切眼、停采線、工作面相鄰處以及巷道交叉處,且地裂縫數(shù)隨地形起伏增大而增多;通過對192條地裂縫的統(tǒng)計回歸分析發(fā)現(xiàn),距地裂縫2 m范圍內(nèi)的植被與地裂縫顯著相關(guān)(R2≥0.96,P0.05),而2 m范圍的植被與地裂縫相關(guān)性未達顯著水平(P0.05),表明受到其他因子的影響較大;隨機選取7條地裂縫,分析距地裂縫不同距離處植被指數(shù)均值變化情況,發(fā)現(xiàn)地裂縫對距其4 m范圍內(nèi)植被有影響。
[Abstract]:A large number of ground cracks appear in shallow coal seam mining, some of which are closed after self-repair, but most of them are difficult to close and develop into permanent cracks. The situation of ground fissure and its surrounding vegetation is related to the effect of ecological reconstruction in mining area. Taking the mining face of Daliuta Mining area in 2003,2004 and 2005 as an example, the methods of field survey and statistical analysis of internal industry are used. The spatial distribution of ground fissures is analyzed with underground mining layout, and then the information of ground fissures and their surrounding vegetation is extracted by Arc GIS 10.0 software, and the change of mean value of vegetation index around ground fissures is analyzed statistically. The ground fissures are mainly distributed in the open and cut holes, stoppage lines, adjacent working face and roadway intersections, and the number of ground cracks increases with the increase of topographic undulation, which is found by statistical regression analysis of 192 ground fissures. There is significant correlation between vegetation and ground fissures in the range of 2 m from ground fissures (R ~ 2 鈮，

本文編號：1580642