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论文中文题名:

 东坡煤矿矿井地质构造定量评价及预测    

姓名:

 陆治霖    

学号:

 201011518    

保密级别:

 公开    

学科代码:

 081801    

学科名称:

 矿产普查与勘探    

学生类型:

 硕士    

学位年度:

 2013    

院系:

 地质与环境学院    

专业:

 矿产普查与勘探    

第一导师姓名:

 樊怀仁    

论文外文题名:

 The Quantitative Evaluation and Prediction of Geological Structure in Dongpo Mine    

论文中文关键词:

 矿井构造 ; 东坡煤矿 ; 等性块段 ; 模糊综合评判 ; 灰色建模预测    

论文外文关键词:

 Mine structures Dongpo Minefield Etc.blocks Fuzzy Comprehensive Evaluation Gre    

论文中文摘要:
煤炭作为我国的主要能源,在未来几十年里,我国对煤炭资源的需求仍然偏紧,煤炭资源的开采力度还会加大,而地质构造的发育程度影响着煤炭的开采。因此,深刻认识矿井构造的客观规律,准确评价矿井构造复杂程度,对煤矿开采规划适合于机械化采煤的区域以及为资源高产高效的开发利用提供依据具有重要意义。 本文通过分析研究区区域构造背景,总结分析了铜川矿区断裂及褶皱构造的发育规律,在此基础上对东坡矿井地质构造的发育规律进行了研究,分析了构造应力场,在对井田构造进行定性分析的基础上,应用模糊综合评判法,选取5个定量评价指标对东坡矿井已采区构造的复杂程度进行了评价,应用灰色建模预测未采区评价指标值,并对未采区构造复杂程度进行了评价。论文取得以下主要结果: (1)东坡井田褶皱构造比较发育,受奥陶系基底起伏的影响,表现出一定的继承性,轴向以近东西向为主,东南部轴向呈NE向。井田中发育的大中型断层以NE和NEE走向为主,小断层以NE方向为主,密度达到10条/km2左右。其中张性或张扭性正断层占绝大多数。井田内断层的平面组合型式主要表现为“入”字型、树枝状、网络状和雁列式等。井田内断层的剖面组合型式主要表现为阶梯式、地堑式和地垒式三类。 (2)选取断层密度、断层强度指数、断层走向影响指数、平面褶皱强度指数、构造面积损失系数5个定量评价指标,利用模糊综合评判对东坡矿井已采区划分的175个单元进行了构造复杂程度的定量评价,结果为:属于Ⅰ类(简单)的有103个单元,属于Ⅱ类(中等)的有35个单元,属于Ⅲ类(复杂)的有20个单元,属于Ⅳ类(极复杂)的有17个单元。实际揭露情况与评价结果基本一致。在此基础上利用灰色系统建模预测未采区各项评价指标值,对未采区划分的32个单元构造复杂程度进行了模糊综合评判,结果为:属于Ⅰ类(简单)的有2个单元,属于Ⅱ类(中等)的有26个单元,属于Ⅲ类(复杂)的有4个单元,得出未采区构造等级以Ⅱ类为主,仅在井田北部和东北部分布有Ⅲ类构造等级,其中Ⅱ类构造等级所占比重最大,Ⅰ类和Ⅲ类次之,未采区未出现Ⅳ类构造等级,故矿井未采区的构造复杂程度较低,整体适合综合机械化采煤。
论文外文摘要:
Coal as a major energy source in China , in the coming decades, the demand of china for coal resources will remain tight, efforts will increase the exploitation of coal resources. The geological structure affect the coal mining. Therefore, a profound understanding of the objective laws to the mine structure, and accurate evaluation of the complexity of the mine structure suitable for mechanized mining mining area as well as to provide a scientific basis for high yield and efficiency of resources development and utilization plan for coal mining. This paper analyzed the regional tectonic setting of the study area, summarizes the analysis of the Tongchuan mine faults, fold structure development rules to carry out a study on the the Dongpo mine geological structure of law on this basis, to analyze the tectonic stress field, doing preliminary Minefield Structural qualitative analysis, the application of fuzzy comprehensive evaluation method, select five quantitative evaluation mining area of mined area. Use gray modeling to forecast the Evaluation of without mining area of Dongpo mine,and evaluate the structural complexity of without mining area. The paper made the following main results: (1) The Dongpo Mine fold structures are well developed by the Ordovician basement and downs of the impact of the performance of certain inherited axial nearly east-west, southeast Axes NE trending. Ida in the development of large and medium-sized fault to the NE and NEE toward small faults in a NE direction and density of about 10/km2. The sheets or tenso normal faults majority. Ida fault plane combination type into the type of fonts, dendritic, network-like, and en echelon type. The Ida fault profile combination type mainly for stepped graben and horst three categories. (2) Select the fault density, fault strength index, fault toward impact index, flat-fold intensity index, constructed area loss coefficient of five quantitative evaluation indicators, fuzzy comprehensive evaluation of Dongpo mine has been mining area divided 175 unit structural complexity quantitative evaluation of the results: 103 units belong to the classⅠ, 35 units belongs to class II , 20 units belonging to the class Ⅲ, Ⅳ class with 17 units. Actually expose the exploitation and evaluation results are basically the same. In gray system modeling predicted on the basis of the evaluation value of non-mining area, the complexity of the type of by not mining area, the construction of the 32 units for the fuzzy comprehensive evaluation results: two units belong to the classⅠbelonging to the class II 26units, four unit class Ⅲ draw tectonic level of the non-mining area mainly Class Ⅱ level III class constructor Ida north and northeast part of the cloth, II class constructor Level the largest share of class Ⅰand Ⅲ class, followed by not mining area does not appear the class constructor IV level, so the whole mine is not the structural complexity of the mining area.
中图分类号:

 TD163    

开放日期:

 2013-06-20    

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