深部大水矿床超前疏干方案研究

发布时间：2018-04-14 08:25

本文选题：深部大水矿床 + 充水条件　；参考：《中南大学》2014年硕士论文

【摘要】：摘要：开磷集团马路坪矿段为缓倾中厚的破碎矿体,品位高,质量好,但随着开采向着深部迈进,出现回采过程中涌水量大、回采稳定性差、回采困难、生产环境差等问题,导致回采贫化损失率高、成本高。针对以上问题,应用超前快速疏干方法对深部矿体进行超前疏干处理,其创新点在于采用地下超前导孔进行超前疏干,超前将岩层、矿体中的地下水抽出,解决矿体回采过程中的水问题,保证回采的高效安全。这其中矿区水文资料的研究与调查是实现矿体超前疏干的基础及关键,是确定超前导孔位置的关键,是提高疏干工程有效性的保证。考虑地下岩体中复杂的水文特性的因素,应对深部大水矿体的超前疏干方案进行探究,对进行现场工业试验,本文就此展开深入研究,得出以下成果： (1)对区域水文地质条件进行调查,分析研究矿区的充水条件与涌水特征。对矿区的充水水源进行分析,确定矿区的充水水源及其比例,并结合矿区的前期调查资料,分析了矿区主要充水通道及其对矿床充水的影响。建立涌水监测点与岩石淋水分级系统,分析得出出水点空间特征与矿区巷道淋水度分级。 (2)完成了多个超前疏干方案,并对各个方案的实施方式、疏干效果等进行了论证。根据现场条件与技术条件,对各个方案进行比较,进行方案的初选。 (3)给出超前疏干方案优选的ANP(网络分析法)模型,并采用GMS对最终方案的可用性与有效性进行模拟验证。通过采用ANP优选出富水钻孔超前疏干方案,采用GMS对其与巷道疏干进行模拟对比,验证了其的优越性。 (4)给出详细的现场工业试验工艺,并进行实际的现场试验；得出现场施工经验,为后续大规模的现场应用提供基础；超前疏干过的矿房,涌水量明显减少,矿石回收量明显增加,创造了良好的经济效益,现场试验获得成功。
[Abstract]:Absrtact: the section of Maoping Mine of Kai-Phosphorus Group is a broken ore body with moderate and thick dip, which has high grade and good quality. However, with the development of deep mining, problems such as large water gushing, poor stability, difficult recovery and poor production environment appear in the process of mining.It leads to high loss rate and high cost.In view of the above problems, the advanced and rapid dredging method is applied to the deep orebody, the innovation of which is to use the underground leading guide hole to clear the ground water in advance, and to draw out the groundwater in the rock stratum and orebody ahead of time.To solve the water problem in the mining process of orebody and ensure the high efficiency and safety of mining.The research and investigation of hydrological data is the foundation and key to realize the advance drainage of orebody, the key to determine the location of leading guide hole, and the guarantee to improve the effectiveness of dredging engineering.Considering the factors of complex hydrological characteristics in underground rock mass, it is necessary to probe into the leading draining scheme of deep Dashu orebody, and to carry out the field industrial test. In this paper, the following results are obtained:1) investigating the regional hydrogeological conditions, analyzing and studying the water filling conditions and the characteristics of water gushing in mining areas.This paper analyzes the water source of water filling in mining area, determines the water source and its proportion in mining area, and analyzes the main water filling channel and its influence on the water filling of ore deposit in combination with the investigation data in the early stage of mining area.The water gushing monitoring points and rock sprinkling classification system are established, and the spatial characteristics of water points and the classification of roadway flooding degree in mining area are obtained by analyzing the characteristics of water points.2) several leading draining schemes have been completed, and the methods and effects of these schemes have been demonstrated.According to the field conditions and technical conditions, the various schemes are compared, and the primary selection is carried out.(3) ANPs (Network Analysis method) model is presented for the optimal selection of leading draining schemes, and GMS is used to simulate the availability and effectiveness of the final schemes.By using ANP to select the advanced drainage scheme of water-rich borehole, and comparing it with roadway dredging by GMS, the superiority of this scheme is verified.(4) the detailed field industrial test process is given, and the actual field test is carried out; the site construction experience is obtained to provide the foundation for the subsequent large-scale field application; the water inflow is obviously reduced for the mine house which has been drained in advance.The recovery of ore has been increased obviously, and good economic benefit has been created, and the field test has been successful.
【学位授予单位】：中南大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TD745

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