錦界煤礦頂板水疏放技術(shù)優(yōu)化研究
[Abstract]:Jinjie Coal Mine is located in the northern end of the Loess Plateau and the southeast edge of Maowusu Desert, belonging to the Jurassic coal field. On the top of the main coal seam 3-1, there are the phreatic aquifer of loose sand layer of the Salawusu formation of Quaternary system and the fractured aquifer of weathered bedrock of the Jurassic Middle Series Zhiluo formation, with medium water content. The soil layer between the two aquifers is thin, and in the thin bedrock section, the height of the water-conducting fracture zone of the 3-1 coal seam is higher than that of the normal bedrock overlying the coal seam. It makes weathered bedrock confined aquifer a universal water-filled aquifer in mines. In view of the water hazard threat to the roof aquifer in the mining of 3-1 coal seam, in the past, the roof water was thinned out in advance by uniform hole arrangement in the working face, so as to reduce the water inflow during the mining period. However, due to the cognitive defects of the drainage technology, excessive drainage is often caused by the large number of boreholes in the working face, the long time of drainage and the large amount of water thinning, which seriously restricts the economic benefit of the mine. Therefore, in order to ensure the mine safe mining and reduce the cost of drainage, it is urgent to optimize the technology of roof drainage of coal seam, which has important guiding significance for the realization of mine safety and efficiency and economic mining. Based on the study of geological, hydrogeological and other data of Jinjie mine, the changing trend and composition of mine water discharge are analyzed, and the influencing factors of mine water discharge are analyzed. It is pointed out that the drainage of coal face is one of the main influencing factors of mine discharge. Based on the research on the situation of roof water thinning in previous working face, the problems such as excessive number of boreholes, too long time of drainage and too large amount of water are put forward in the process of water thinning and discharging. In view of this problem, the experiment of sparing water in 31204 working face is carried out. The influence radius of the unit of holes, the water volume of single hole, the residual water head, the stable time of drainage and the influence radius of single hole are analyzed. Based on the analysis of the experimental data, the quantitative index of the drainage effect is put forward, and the criteria for judging the effect of the thinning are obtained on the basis of the analysis of the experimental data. The three-dimensional unsteady flow numerical model of groundwater in the study area was established, and the relevant hydrogeological parameters were obtained. After identification and verification, a numerical model of groundwater flow for simulation and prediction was provided for the optimal management model of drainage. By using the response matrix method, the numerical model of groundwater three-dimensional unstable flow is coupled with the optimal management model, and the optimal management model of water drainage of coal seam roof in 31205 working face is established with the criterion of the effect of drainage and drainage as the constraint condition. Based on the interval between sections, the number of holes and the time of drainage, six different schemes are set up. The model is solved by using Lingo language and 0-1 integer programming algorithm. The calculation results of each scheme are compared and analyzed. The optimal recommended scheme of roof water drainage in 31205 working face is obtained.
【學位授予單位】:煤炭科學研究總院
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:TD745
【相似文獻】
相關(guān)期刊論文 前10條
1 劉傳娥;魏久傳;郭建斌;李忠建;;多因素復合法評價煤層頂板水害危險性[J];山東煤炭科技;2010年01期
2 聶夷平;魯海剛;劉海鵬;;首采區(qū)頂板水防治經(jīng)驗淺談[J];科技與企業(yè);2012年22期
3 李波;范炳岐;王長柱;;充填回采防治頂板水技術(shù)研究[J];山東煤炭科技;2013年03期
4 林劉軍;許江濤;;澠池煤田頂板水害研究[J];科技視界;2013年13期
5 黃祖軍;李化敏;王文;;綜采長壁工作面探放頂板復合水水源判別[J];煤炭科學技術(shù);2013年S2期
6 武強,黃曉玲,董東林,殷作如,李建民,洪益清,張厚軍;評價煤層頂板涌(突)水條件的“三圖-雙預測法”[J];煤炭學報;2000年01期
7 劉偉韜,李加祥,張文泉;頂板涌水等級評價的模糊數(shù)學方法[J];煤炭學報;2001年04期
8 張文泉;俞海玲;;應用層次分析法確定礦井頂板涌水影響因素的權(quán)值[J];礦業(yè)安全與環(huán)保;2006年02期
9 張利標;;傾斜開采與“井點”疏放防治煤層頂板水害[J];采礦技術(shù);2006年01期
10 胡戈;李文平;劉啟蒙;李小琴;程偉;焦永亮;;疊加開采頂板變形破壞離散元模擬研究[J];采礦與安全工程學報;2007年04期
相關(guān)會議論文 前10條
1 楊建華;;濟寧三號煤礦頂板水綜合防治技術(shù)[A];2003年度優(yōu)秀學術(shù)論文集——煤礦先進生產(chǎn)技術(shù)交流會論文集[C];2003年
2 張學芝;魏宗明;;褚墩煤礦南三采區(qū)頂板水的防治[A];山東省煤炭學會2006年年會論文集[C];2006年
3 陳福生;劉國華;劉東東;張青;;利用高冒巷疏放頂板水的可行性[A];2007年贛皖湘蘇閩五省煤炭學會聯(lián)合學術(shù)交流會論文集[C];2007年
4 武強;武曉媛;劉守強;李士永;;基于“三圖—雙預測”法的葫蘆素礦頂板水害評價預測與防治對策[A];第三屆全國煤礦機械安全裝備技術(shù)發(fā)展高層論壇暨新產(chǎn)品技術(shù)交流會論文集[C];2012年
5 趙斌;;煤層頂板水與采空區(qū)水綜合探放技術(shù)及應用[A];煤礦水害防治技術(shù)研究——陜西省煤炭學會學術(shù)年會論文集(2013)[C];2013年
6 趙春虎;劉其聲;田干;李賢志;;平朔井工三礦首采區(qū)特厚煤層綜采頂板水綜合防治技術(shù)實踐[A];煤礦安全高效開采理論技術(shù)與實踐[C];2010年
7 王文波;韓仁橋;薛梅;;瞬變電磁在煤層頂板水探測中的應用[A];安全高效煤礦地質(zhì)保障技術(shù)及應用——中國地質(zhì)學會、中國煤炭學會煤田地質(zhì)專業(yè)委員會、中國煤炭工業(yè)勞動保護科學技術(shù)學會水害防治專業(yè)委員會學術(shù)年會文集[C];2007年
8 陳文濤;王紹坤;韓振國;;靈東煤礦承壓含水層下綜放開采頂板水害防治措施[A];全國煤礦復雜難采煤層開采技術(shù)[C];2012年
9 岳鵬超;蔣學明;;石槽村煤礦復雜煤層頂板水害疏放技術(shù)研究[A];全國煤礦復雜難采煤層開采技術(shù)[C];2012年
10 付民強;劉顯云;;地質(zhì)構(gòu)造因素與3煤頂板突水的關(guān)系[A];煤礦物探學術(shù)論文集(2007)[C];2007年
相關(guān)重要報紙文章 前2條
1 徐麗青;礦山防治水技術(shù)實現(xiàn)新突破[N];中煤地質(zhì)報;2009年
2 本報通訊員 艾紅霞;徹底排查 強化基礎[N];榆林日報;2011年
相關(guān)博士學位論文 前1條
1 徐連利;平朔一號井工礦頂板水害評價方法與應用研究[D];中國礦業(yè)大學(北京);2010年
相關(guān)碩士學位論文 前7條
1 魏真;基于SVR的煤層頂板水害分析模型研究[D];中國礦業(yè)大學;2015年
2 王苗;基于灰色理論的礦井頂板涌水量預測模型的建立與應用[D];山東科技大學;2007年
3 鄭建;牛西礦水文地質(zhì)研究[D];河北工程大學;2011年
4 羅斌;基于GIS的頂板水害條件分析及多源信息綜合評價[D];中國礦業(yè)大學;2014年
5 張雁;防止煤層頂板水潰入礦井的預警系統(tǒng)研究[D];煤炭科學研究總院;2008年
6 孫輝;古家臺鐵礦采場結(jié)構(gòu)優(yōu)化的三維正交有限元數(shù)值模擬[D];青島理工大學;2009年
7 李洪明;泊江海子礦侏羅系3-1煤層頂板孔隙水物探應用研究[D];安徽理工大學;2014年
,本文編號:2349030
本文鏈接:http://sikaile.net/kejilunwen/anquangongcheng/2349030.html