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论文中文题名:

 新庄煤矿副立井不同地层冻结规律研究    

姓名:

 袁延召    

学号:

 201309481    

学科代码:

 081405    

学科名称:

 防灾减灾工程及防护工程    

学生类型:

 硕士    

学位年度:

 2016    

院系:

 建筑与土木工程学院    

专业:

 防灾减灾工程及防护工程    

第一导师姓名:

 杨更社    

第一导师单位:

 西安科技大学    

论文外文题名:

 Study on the Freezing-law of Different Stratum in the Vice Mine of Xinzhuang Coal Mine    

论文中文关键词:

 新庄煤矿 ; 不同地层 ; 传热机制 ; 冻结规律 ; 晶格理论    

论文外文关键词:

 Xinzhuang Coal Mine ; Different formation ; Heat transfer mechanism ; Freezing    

论文中文摘要:
西部开采煤层要面对复杂的地质构造以及工程地质问题,西部地层一般具有高含水率,低胶结率,且容易软化等特点,因此在这些的含水地层的支护以及加固开采上多采用冻结法来解决这些问题,这也是解决穿越富水地层的最有效的施工技术。因此对不同地层在不同状态下的冻结规律的研究,可以为西部矿井进行冻结设计与冻结壁的厚度预测提供参数选择方法。 本文以新庄煤矿冻结井筒穿越不同地层为例,主要的研究内容有:①对各个地层进行地质条件,地温分布,地层物理性质等地层的地质分布规律进行研究,并根据各地层的地质环境,选取出三个代表层(第四系土层中的粘性粉土层,白垩系地层中的洛河组岩层,侏罗系地层中的安定组岩层)作为所在地层的典型代表;②通过量子理论建立材料热传导理论的晶格理论,并通过该理论对相关地层的微观结构扫描结果,微观成分分析结果与不同状态(干燥,自然,饱和含水率,地温,20℃,10℃,0℃,-10℃,-20℃,-30℃)下的热物理参数测试试验结果进行了理论分析,并结合各地层的地质环境进行热传导理论研究,重点分析各个地层在不同状态下的热传导的差异性以及变化规律的机制;③运用ANSYS软件,在试验数据的基础上对地层在冻结壁处于不同状态(干燥,自然,饱和含水率,地温,20℃,10℃,0℃,-10℃,-20℃,-30℃)下的通过变化的物理参数,模拟各自冻结温度场的分布,分析不同状态下导热系数变化对冻结工程产生的影响;④通过现场实测对比模拟结果,分析模拟与实测规律之间的关系,为不同状态下的地层进行冻结施工参数的选择提供依据。 本文采用热物理试验、数值模拟和现场实测相结合的方法对新庄煤矿副立井不同代表层的冻结规律进行了研究,相应的研究成果对穿越西部复杂地层的冻结工程的设计优化具有一定的参考价值。
论文外文摘要:
The complexed geological structure and engineering geological problems during the western mining coal seam , the western formation’s character generally have high water content, low rate of cementation, and easy to soften characteristics, and so on . the most effective construction technology is freezing method , it solve the aquifers of supporting and strengthening mining .Therefore the research on different formation in different state freezing law, which for the western mine freezing design and frozen wall thickness prediction parameters selection method. In this paper, Xinzhuang coal mine freezing shaft through different formation as an example, the main contents are as follows: ① the geological conditions of each stratum temperature distribution, studied by the geological distribution of rock strata, and according to the geological environment around the layer, select three representative layers (viscous silt, quaternary soil in Cretaceous Luohe the rock strata in the group, diazepam group strata of the Jurassic strata) as the typical representative of the strata; ② On the around of the layer and the microstructure , and on scanning microscopic component analysis with different state (dry, natural, saturated water content, 30℃, 20 ℃, 10 ℃, 0 ℃ -10℃,-20℃,-30℃) ,the thermal physical parameters under test, according to test results, the establishment of lattice theory of material heat conduction theory by quantum theory, and combined with the microscopic stratum study on the theory of heat conduction mechanism of environment, which focus on the analysis of difference of heat conduction of each formation in different conditions and the change rule. ③ by the ANSYS software. In test data on the basis of strata in different states (drying, natural, saturated water content, 30℃, 20 ℃, 10 ℃, 0 ℃ -10℃,-20℃,-30℃) under different thermal conductivity simulation each freezing temperature field distribution of different thermal conductivity of freezing project, ④ Through the field contrast simulation results. Analysis of the relationship between simulated and measured law, the different states of strata freezing construction parameters provide the basis for the selection. Through the combination of thermal physics test, the numerical simulation and the field measurement method of Xinzhuang Coal Mine vice shaft layers represent different freezing pattern was studied, the corresponding research achievements of Western through parameter design of complex formation of freezing engineering geology has certain reference value.
中图分类号:

 TD265.3    

开放日期:

 2016-06-18    

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