發(fā)布時間：2018-01-15 01:23

  本文關(guān)鍵詞：陜西郭家河煤礦地質(zhì)環(huán)境承載力評價研究　出處：《浙江大學》2015年碩士論文　論文類型：學位論文

  更多相關(guān)文章： 地質(zhì)環(huán)境承戴力 評價指標 拓撲學物元矩陣 沉陷預(yù)測

【摘要】：郭家河煤礦位于陜西省侏羅紀煤田永隴礦區(qū)麟北勘查區(qū)的南部,東西長約15km,南北寬約8.5km,面積約94.7km2。礦區(qū)所在區(qū)域生態(tài)環(huán)境優(yōu)越,煤炭資源賦存豐富。陜西是能源大省,經(jīng)濟的發(fā)展主要依賴于對煤炭的開采和初加工。但長期以來,由于開發(fā)過程中弱化了對礦山地質(zhì)環(huán)境的保護和研究工作,在有效開發(fā)的同時保證生態(tài)環(huán)境不受到破壞是目前礦區(qū)亟需解決的問題,因此進行郭家河礦區(qū)地質(zhì)環(huán)境承載能力的研究意義十分重大。本論文在收集郭家河礦區(qū)地質(zhì)資料和實地調(diào)查的基礎(chǔ)上,在全面考慮評價指標選取原則和礦山地質(zhì)環(huán)境承載力影響因素的基礎(chǔ)上,從構(gòu)造介質(zhì)、水文地質(zhì)和構(gòu)造界面和構(gòu)造形態(tài)4個方面篩選了覆巖厚度、覆巖綜合硬度、土層和巖層厚度比、關(guān)鍵層位置、褶曲翼尖角、節(jié)理斷層巖體結(jié)構(gòu)、應(yīng)力狀態(tài)和覆巖含水性等8個評價指標,應(yīng)用拓撲學物元矩陣理論,求解各參數(shù)關(guān)聯(lián)函數(shù),采用公式法確定各指標權(quán)重,建立礦山地質(zhì)環(huán)境承載抗擾動能力評價指標體系,對郭家河礦區(qū)進行地質(zhì)環(huán)境抗擾動能力評價；應(yīng)用基于概率積分法編制的軟件開采沉陷預(yù)計系統(tǒng)(MSCS)對郭家河礦區(qū)主采的3號煤層賦存區(qū)進行采空區(qū)塌陷預(yù)測,預(yù)測的基礎(chǔ)上評價生態(tài)環(huán)境承受能力評價。評價結(jié)果表明：郭家河礦區(qū)地質(zhì)環(huán)境抗干擾能力強,等級為Ⅰ級,礦區(qū)生態(tài)環(huán)境抗干擾能力強,等級為Ⅰ級,綜合評價郭家河煤礦地質(zhì)環(huán)境承載能力強,等級為等級為Ⅰ級。通過預(yù)計計算得到沉降量,將下沉值和評價模型進行進一步的聯(lián)合分析,是一個開采沉陷學和地質(zhì)學的交叉成果,有助于礦區(qū)未來的生產(chǎn),具有一定的創(chuàng)新性。地質(zhì)環(huán)境抗擾動能力對礦山生態(tài)環(huán)境環(huán)境的影響程度,對協(xié)調(diào)發(fā)展郭家河礦區(qū)煤炭資源開發(fā)和礦山地質(zhì)環(huán)境保護具有一定指導意義。
[Abstract]:The Guojiahe coal mine is located in the south of the northern exploration area of Yonglong mining area in Jurassic coalfield of Shaanxi Province. The length of east and west is about 15km and the width of north and south is about 8.5 km. The area of the mining area is about 94.7km2. The area of the mining area is superior in ecological environment and rich in coal resources. Shaanxi is a big energy province, the economic development mainly depends on the coal mining and initial processing, but for a long time. Due to the weakening of the protection and research work of mine geological environment during the development process, it is urgent to solve the problem of ensuring the ecological environment not to be destroyed while developing effectively. Therefore, it is of great significance to study the bearing capacity of geological environment in Guojiahe mining area. This paper is based on the collection of geological data and field investigation in Guojiahe mining area. On the basis of overall consideration of the selection principle of evaluation indexes and factors affecting the bearing capacity of mine geological environment, overburden thickness is screened from four aspects: tectonic medium, hydrogeology, structural interface and structural form. The topologic matter-element matrix theory is applied to evaluate the overburden rock hardness, the ratio of soil layer to rock thickness, the key layer position, the angle of fold wing, the structure of jointed fault rock mass, the stress state and the water content of overburden rock. Solving the correlation function of each parameter, using the formula method to determine the weight of each index, establishing the evaluation index system of the bearing and anti-disturbance ability of the geological environment, and evaluating the anti-disturbance ability of the geological environment in the Guojiahe mining area. The software mining subsidence prediction system (MSCS) based on probability integration method is used to predict the collapse of goaf in the No. 3 coal seam in the main mining area of Guojiahe mining area. The evaluation results show that the geological environment of Guojiahe mining area has strong anti-interference ability, grade I and mining area ecological environment anti-interference ability is strong, grade I. The comprehensive evaluation of the geological environment of Guojiahe coal mine has a strong bearing capacity, and the grade is grade 鈪，

本文編號：1426178