本文關(guān)鍵詞： 神東礦區(qū) 淺埋煤層 地下水庫(kù) 循環(huán)利用 導(dǎo)水裂隙　出處：《西安科技大學(xué)》2016年博士論文　論文類(lèi)型：學(xué)位論文

【摘要】：神東礦區(qū)地處干旱半干旱的毛烏素沙漠邊緣,生態(tài)環(huán)境脆弱,水資源匱乏。煤炭高強(qiáng)度開(kāi)發(fā)導(dǎo)致地層水資源漏失嚴(yán)重,是神東礦區(qū)綠色開(kāi)采亟待解決的重大技術(shù)難題。利用井下采空區(qū)作為礦井水儲(chǔ)存、凈化和利用的空間,進(jìn)行基于地下水庫(kù)的礦井水循環(huán)利用關(guān)鍵技術(shù)研究,具有重要的理論意義和實(shí)踐價(jià)值。本文針對(duì)神東礦區(qū)大柳塔煤礦地質(zhì)開(kāi)采條件,結(jié)合神東礦區(qū)高產(chǎn)高效煤炭開(kāi)采技術(shù),綜合采用現(xiàn)場(chǎng)實(shí)測(cè)、理論分析與模擬實(shí)驗(yàn)等手段,研究和開(kāi)發(fā)了通過(guò)井下采空區(qū)水庫(kù)實(shí)現(xiàn)水資源循環(huán)利用的地下水庫(kù)選址、壩體結(jié)構(gòu)與防滲、監(jiān)測(cè)與調(diào)控等關(guān)鍵技術(shù)。地下水庫(kù)的選址應(yīng)建設(shè)在圍巖較穩(wěn)定、地勢(shì)偏低、不受采動(dòng)直接影響的區(qū)域,以便于水資源的穩(wěn)定儲(chǔ)存和高效調(diào)用。通過(guò)對(duì)地下水庫(kù)隔離壩體結(jié)構(gòu)分析,得到了水庫(kù)隔離壩體參數(shù)的計(jì)算方法。針對(duì)壩體防滲技術(shù),提出了煤柱壩體采動(dòng)裂隙采用注漿加固與封堵裂隙的防滲技術(shù),提出了人工構(gòu)筑壩體采用結(jié)構(gòu)和強(qiáng)度設(shè)計(jì)的防滲技術(shù)。按照地下水庫(kù)污水回灌和清水取用的功能要求,提出了“污水由高處回灌、清水由低處取用”的管路布置原則,并形成了不同水平之間水庫(kù)管路布設(shè)的關(guān)鍵技術(shù)。構(gòu)建了以傳感器、測(cè)量控制單元(MCU)和監(jiān)測(cè)控制平臺(tái)為主的地下水庫(kù)安全監(jiān)測(cè)系統(tǒng)。應(yīng)用本研究技術(shù),在大柳塔礦建成了我國(guó)首個(gè)具有立體空間網(wǎng)絡(luò)的龐大的地下水庫(kù)水循環(huán)利用系統(tǒng),可向礦區(qū)生產(chǎn)和生活供水,形成了天然污水處理廠和自然壓差供水系統(tǒng),實(shí)現(xiàn)了大柳塔煤礦“礦區(qū)地上清潔水源零入井、地下開(kāi)采導(dǎo)致的污水零升井”的雙零處理目標(biāo),實(shí)現(xiàn)了水資源的高效循環(huán)利用,有效保護(hù)了水資源。大柳塔煤礦地下水庫(kù)技術(shù)推廣應(yīng)用到神華集團(tuán)神東煤炭分公司的15個(gè)礦,設(shè)計(jì)實(shí)施了 35座地下水庫(kù),總設(shè)計(jì)地下水庫(kù)儲(chǔ)水量達(dá)2499.5萬(wàn)mm3,提供了 95%的礦區(qū)生產(chǎn)和生活用水,實(shí)現(xiàn)了礦區(qū)水資源良性立體循環(huán),由昔日的用水大戶(hù)變?yōu)榻袢盏膶?duì)外供水大戶(hù),取得了顯著的社會(huì)經(jīng)濟(jì)效益,為我國(guó)淺埋煤層綠色開(kāi)采開(kāi)辟了新途徑。
[Abstract]:Shendong mining area is located on the edge of arid and semi-arid Maowusu desert. The ecological environment is fragile and water resources are scarce. It is an important technical problem to be solved urgently in green mining in Shendong mining area. Using goaf as the space of mine water storage, purification and utilization, the key technology of mine water recycling based on underground reservoir is studied. It has important theoretical significance and practical value. According to the geological mining conditions of Daliuta coal mine in Shendong mining area, combined with the high yield and high efficiency coal mining technology of Shendong mining area, the field measurement is adopted comprehensively in this paper. By means of theoretical analysis and simulation experiments, the underground reservoir location, dam structure and seepage control are studied and developed to realize the recycling utilization of water resources through the underground goaf reservoir. Monitoring and control and other key technologies. The location of underground reservoir should be built in the area where the surrounding rock is relatively stable, the topography is low, and the underground reservoir is not directly affected by mining. In order to facilitate the stable storage and efficient transfer of water resources, the calculation method of reservoir isolation dam parameters is obtained by analyzing the structure of isolated dam body of underground reservoir. This paper puts forward the anti-seepage technology of mining fissure in coal pillar dam body by grouting reinforcement and sealing the fissure. The anti-seepage technology of artificial construction dam body is put forward, which adopts structure and strength design. According to the function requirement of sewage recharge and clear water utilization in underground reservoir, it is put forward that "sewage recharge from high place." The principle of pipe layout of clear water is taken from the low place, and the key technology of setting up the reservoir pipeline between different levels is formed. The sensor is constructed. Survey and control unit (MCU) and monitoring and control platform for underground reservoir safety monitoring system. The first large underground reservoir water recycling system with three-dimensional space network has been built in Daliuta Mine which can supply water to production and life of mining area and form natural sewage treatment plant and natural pressure differential water supply system. The double zero treatment goal of "zero entry of clean water source in mining area and zero rising well of sewage caused by underground mining" has been realized in Daliuta coal mine, and the efficient recycling of water resources has been realized. The technology of underground reservoir in Daliuta Coal Mine was popularized and applied to 15 mines of Shenhua Group Shendong Coal Company, and 35 underground reservoirs were designed and implemented. The total design of underground reservoir water storage reaches twenty-four million nine hundred and ninety-five thousand mm, providing 95% of the production and domestic water in mining area, realizing the benign three-dimensional circulation of water resources in mining area. From the former water users to the foreign water suppliers, remarkable social and economic benefits have been obtained, which has opened a new way for the green mining of shallow coal seams in China.
【學(xué)位授予單位】：西安科技大學(xué)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2016
【分類(lèi)號(hào)】：TV213.9

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