榆神礦區(qū)頂板含水層涌(突)水條件綜合研究
發(fā)布時間:2018-04-14 05:33
本文選題:榆神礦區(qū) + 保水采煤 ; 參考:《西安科技大學(xué)》2017年碩士論文
【摘要】:榆神礦區(qū)煤炭資源豐富,煤質(zhì)優(yōu)良,地質(zhì)構(gòu)造簡單,開采條件優(yōu)良,但是該區(qū)生態(tài)環(huán)境脆弱,煤炭開采引發(fā)了一系列的生態(tài)環(huán)境問題,因此開展煤炭開采過程中的水資源保護基礎(chǔ)理論研究,是榆神礦區(qū)“煤-水”雙資源型礦井煤炭資源科學(xué)開發(fā)面臨的迫切任務(wù)。以榆神礦區(qū)為研究對象,主要從榆神礦區(qū)的煤水賦存特征及首采煤層頂板涌(突)水綜合條件入手,以實現(xiàn)保護礦區(qū)的水資源為目標(biāo),主要做了如下研究:(1)篩選出了平面上均勻分布的410個鉆孔數(shù)據(jù)作為本次研究的基礎(chǔ)資料,通過基礎(chǔ)地質(zhì)圖件的繪制系統(tǒng)地研究了榆神礦區(qū)煤-水賦存特征及首采煤層與含水層的關(guān)系;(2)通過SPSS軟件采用聚類分析方法,最終將榆神礦區(qū)首采煤層上覆含(隔)水層組合類型劃分為5個區(qū):砂-土-洛-基型(Ⅰ)、砂-土-基型(Ⅱ)、砂-基型(Ⅲ)、無水開采型(Ⅳ)、燒變巖型(Ⅴ);(3)運用多元地學(xué)信息復(fù)合疊加原理,采用層次分析法通過GIS疊加分析,疊加首采煤層頂板充水含水層富水性分區(qū)圖及煤層開采頂板冒落安全性分區(qū)圖,得到首采煤層開采頂板涌(突)水條件綜合分區(qū)圖,最終將榆神礦區(qū)首采煤層頂板涌(突)水危險性分為四個等級:危險性大區(qū)(Ⅰ)、危險性較大區(qū)(Ⅱ)、危險性中等區(qū)(Ⅲ)和危險性小區(qū)(Ⅳ),在此基礎(chǔ)上研究了榆神礦區(qū)每一層首采煤層的上覆含(隔)水層組合類型及其頂板涌(突)水危險性分區(qū)。本文采用采用定性定量相結(jié)合的方法對榆神礦區(qū)首采煤層上覆含(隔)水層空間組合類型及頂板涌(突)水危險性進行了分區(qū)研究,得到的結(jié)論具有一定的可靠性,為區(qū)域的采煤規(guī)劃及科學(xué)開采提供了理論和技術(shù)依據(jù)。
[Abstract]:Yushen mining area is rich in coal resources, good in coal quality, simple in geological structure and excellent in mining conditions, but the ecological environment in this area is fragile, and coal mining has caused a series of ecological and environmental problems.Therefore, it is an urgent task for the scientific development of coal resources in Yushen mining area to carry out the research on the basic theory of water resources protection in the process of coal mining.Taking Yushen mining area as the research object, starting with the characteristics of coal and water occurrence in Yushen mining area and the comprehensive conditions of roof surge (outburst) water in the first coal seam, the aim of this paper is to realize the protection of water resources in mining area.The following research was done: 1) 410 borehole data with uniform distribution on the plane were selected as the basic data for this study.The characteristics of coal-water occurrence in Yushen mining area and the relationship between coal seam and aquifer in Yushen mining area are systematically studied by drawing the basic geological map. The cluster analysis method is adopted by SPSS software.Finally, the types of water-bearing and water-bearing strata on the first mining seam of Yushen mining area are divided into five areas: sand soil-Luo-base type (鈪,
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