陕西郭家河煤矿地质环境承载力评价研究

发布时间：2018-01-15 01:23

  本文关键词：陕西郭家河煤矿地质环境承载力评价研究　出处：《浙江大学》2015年硕士论文　论文类型：学位论文

  更多相关文章： 地质环境承戴力 评价指标 拓扑学物元矩阵 沉陷预测

【摘要】：郭家河煤矿位于陕西省侏罗纪煤田永陇矿区麟北勘查区的南部,东西长约15km,南北宽约8.5km,面积约94.7km2。矿区所在区域生态环境优越,煤炭资源赋存丰富。陕西是能源大省,经济的发展主要依赖于对煤炭的开采和初加工。但长期以来,由于开发过程中弱化了对矿山地质环境的保护和研究工作,在有效开发的同时保证生态环境不受到破坏是目前矿区亟需解决的问题,因此进行郭家河矿区地质环境承载能力的研究意义十分重大。本论文在收集郭家河矿区地质资料和实地调查的基础上,在全面考虑评价指标选取原则和矿山地质环境承载力影响因素的基础上,从构造介质、水文地质和构造界面和构造形态4个方面筛选了覆岩厚度、覆岩综合硬度、土层和岩层厚度比、关键层位置、褶曲翼尖角、节理断层岩体结构、应力状态和覆岩含水性等8个评价指标,应用拓扑学物元矩阵理论,求解各参数关联函数,采用公式法确定各指标权重,建立矿山地质环境承载抗扰动能力评价指标体系,对郭家河矿区进行地质环境抗扰动能力评价；应用基于概率积分法编制的软件开采沉陷预计系统(MSCS)对郭家河矿区主采的3号煤层赋存区进行采空区塌陷预测,预测的基础上评价生态环境承受能力评价。评价结果表明：郭家河矿区地质环境抗干扰能力强,等级为Ⅰ级,矿区生态环境抗干扰能力强,等级为Ⅰ级,综合评价郭家河煤矿地质环境承载能力强,等级为等级为Ⅰ级。通过预计计算得到沉降量,将下沉值和评价模型进行进一步的联合分析,是一个开采沉陷学和地质学的交叉成果,有助于矿区未来的生产,具有一定的创新性。地质环境抗扰动能力对矿山生态环境环境的影响程度,对协调发展郭家河矿区煤炭资源开发和矿山地质环境保护具有一定指导意义。
[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，

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