本文關(guān)鍵詞：淮南煤田潘謝礦區(qū)構(gòu)造控水特征研究　出處：《安徽理工大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 潘謝礦區(qū) 構(gòu)造特征 水文地質(zhì)特征 構(gòu)造演化 構(gòu)造控水

【摘要】：潘謝礦區(qū)位于安徽省中西部,是淮南煤田的重要組成部分。本文運用構(gòu)造、水文地質(zhì)及構(gòu)造控水理論知識,采取逐級分塊、構(gòu)造演化及逐漸控制的方法手段對潘謝礦區(qū)勘探資料展開深入研究,分析概括礦區(qū)構(gòu)造發(fā)育規(guī)律及水文地質(zhì)特征,研究總結(jié)潘謝礦區(qū)構(gòu)造控水特征,主要得到以下幾點結(jié)論.(1)潘謝礦區(qū)主體復(fù)向斜內(nèi)部發(fā)育以NWW～NW走向褶皺為主,礦區(qū)發(fā)育的斷層主要是NW向張性斷層、NEE-NE向斜切正斷層及近EW向斷層,總體以正斷層為主。礦區(qū)構(gòu)造主要經(jīng)歷印支期(受NS向擠壓)、燕山期(早期受NW-SE向擠壓,晚期轉(zhuǎn)變?yōu)槔瓘堊饔?及喜山期(主要ES向WN傾伏的不均衡沉降)等改造影響共同作用形成如今形態(tài)。(2)潘謝礦區(qū)地下水主要包括松散層、煤系砂巖、太灰、奧灰等含水層(組),各含水層(組)之間有一定隔水層,且各含水層水主要以靜儲量為主,被采礦抽排水不斷消耗,礦區(qū)內(nèi)地下水整體自西向東發(fā)生緩慢徑流。其中煤系砂巖水富水性弱,太灰富水性弱-中等,但水壓過高,而奧灰富水性弱-強(qiáng),極其不均一,不同地段差異很大。(3)潘謝礦區(qū)含水層初步形成于加里東、華力西期,后經(jīng)印支、燕山、喜山等運動改造逐漸形成現(xiàn)存狀態(tài),礦區(qū)周邊區(qū)域大中斷層的阻水作用,使潘謝礦區(qū)處于一個較封閉獨立的水文地質(zhì)單元中。潘謝礦區(qū)除局部斷層裂隙較發(fā)育處富水較強(qiáng)外,總體斷層富水性差,絕大多數(shù)為隔水?dāng)鄬?但在開采擾動情況下,一些隔水?dāng)鄬涌赡芑罨蓪?dǎo)水通道。最后指出易發(fā)斷層突水情況:大落差斷層切割A(yù)組煤及太灰附近,需注意下部緊鄰的太灰水井下采掘擾動可能使斷層發(fā)生活化,以及斷層切割煤層與灰?guī)r對口部位為抗壓薄弱帶難以抵抗太灰高水壓等情況,可能使隔水?dāng)鄬幼優(yōu)閷?dǎo)水?dāng)鄬?從而發(fā)生突水。提出疏水降壓、斷層帶注漿加固,以及留設(shè)安全煤巖柱等措施及建議。
[Abstract]:Panxie Mining Area in Anhui Province, is an important part of the Huainan coalfield. This paper uses water control structure, hydrogeological and tectonic theory knowledge, take step by step block, tectonic evolution and control methods gradually to conduct in-depth study of Panxie Mining exploration data, analysis of the characteristics and hydrogeological structure of mining area development, research summary Panxie mine water control structure characteristics, mainly get the following conclusions. (1) the main synclinorium developed inside the Panxie Mining Area at NWW ~ NW trending folds, faults of the mining area is mainly NW to Zhang Xingduan to NEE-NE layer, oblique normal fault and EW trending fault, the normal faults. The tectonic main experience the Indosinian (by NS to the Yanshan period (early extrusion), NW-SE compression, advanced into the role of tension) and Himalayan period (mainly ES to WN plunging uneven settlement) reconstruction effect Now the formation of form. (2) Panxie Mining Area Groundwater mainly including loose layer, coal and sandstone, limestone, etc. the ash Austria aquifer (Group), each aquifer (Group) between a water resisting layer, and the aquifer water mainly in the static reserves mainly by mining drainage time consumption, mine groundwater the whole West slowly to the East. The runoff coal sandstone rich water is too weak, grey water rich weak medium, but the water pressure is too high, and the Ordovician limestone water rich weak strong, extremely uneven, lots of different differences. (3) aquifer in Panxie Mining Area initially formed in Variscan, east of Gary, after the Indosinian, Yanshan and Himalayan movement transformation gradually formed the existing state, water resistance and fault area surrounding the mine, the Panxie Mining Area is in a relatively closed independent hydrogeological unit in Panxie Mining Area. In addition to the local fault fissure is developed at the water rich and strong, the overall poor water rich fault For the vast majority of water, fault, but in the case of mining disturbance, some water into the water channel fault may be activated. Finally, prone to water inrush: large gap fault cutting coal group A and ash too near, the need to pay attention to too close to lower ash wells under mining disturbance may make the fault of life, and the fault cutting coal seam and limestone site with weak compressive counterpart can not resist too gray high pressure etc., may make the water into the water conductive fault fault, and water inrush. The hydrophobic buck, grouting strengthening, and leaving the safety of coal pillar and other measures and suggestions.

【學(xué)位授予單位】：安徽理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：P641.461

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