论文中文题名: | 大采高综采面运输巷自移式超前支架支护研究 |
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学号: | 201212573 |
学科代码: | 081901 |
学科名称: | 采矿工程 |
学生类型: | 硕士 |
学位年度: | 2015 |
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第一导师姓名: | |
论文外文题名: | Research on Transportation Lane Advanced Self-shift Type Supporting in Fully-mechanized Face under Large Mining Height |
论文中文关键词: | |
论文外文关键词: | Large Mining Height ; Working Face Transportation Lane ; Advanced Support |
论文中文摘要: |
随着大采高综采技术对工作面两巷断面尺寸要求越来越大,传统的工作面单体液压支柱超前支护方式已不能适应安全高效综采工作面对超前支护的要求,两巷超前支护已经成为制约大采高工作面安全高效生产的瓶颈之一,特别是运输巷超前支护段大型设备密布,实现机械化超前支护难度很大。因此,研究大采高综采工作面运输巷机械化超前支护技术具有重要的理论意义和应用价值。
本论文以红柳林煤矿大采高综采运输巷超前支护为研究对象,采用了计算机数值模拟,理论分析方法和现场试验,结合大采高综采面运输巷道的围岩应力变形特点,分析了围岩变形及应力变化对超前支护的影响,工作面采动应力分布的特征,以及在采动影响运输巷的变形破坏特征。根据理论分析和应用FLAC3D模拟大采高综采面运输巷使用超前支架后围岩破坏与巷道围岩变形位移及应力变化特征,提出了自移式超前液压支架采用交错迈步自移式超前支架的主体结构形式,对主要技术参数进行了分析比较,给出了自移式超前支架工作阻力的确定方法,合理的确定了超前支架的主要技术参数。现场初步试验中安全可靠、推移速度快,试验效果良好。
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论文外文摘要: |
With the large mining Mechanized Mining technology of fully working face two lane size demand is higher and higher.Traditional advanced support method of single hydraulic on working face can’t fit the requirement of advanced supporting for working face of safety and efficient. Two lane advanced supporting has become one of bottlenecks of restricting the large mining height working face safety and high efficiency, especially transportation lane advanced supporting had many large equipment. It’s so hard to realize mechanization advanced supporting. Consequently, to research advanced support technology for transportation lane mechanization on the large mining height working face has important theoretical significance and application value.
This paper takes the Hong Liulin Coal Mining large mining Mechanized Mining transportation lane advanced support as the research object. Using the computer numerical simulation, the theoretical analysis method and field test, and combined with the pressure of surrounding rock of large mining height and fully mechanized working face haulage-way deformation characteristics. Analyzed that the impact of the change of pressure and deformation of surrounding rock on advanced support and the characteristics of the working face mining-induced stress distribution, and the deformation failure characteristic under the working face of mining. According to the theory analysis and application FLAC3D to simulate the large mining height and fully mechanized working face in the transportation lane using advanced support. Simulate surrounding rock failure and roadway deformation displacement after using fore support in the transportation lane and stress variable characteristics. We proposed that advanced self-shift hydraulic supporting adopted the main structure form of stepped from self-advanced, and analyzed the main technical parameters. We showed the decided method of working resistance self-advanced support. This technology had been safe, quick in traction speed, good in experiment effect on preliminary testing ground.
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中图分类号: | TD353 |
开放日期: | 2015-06-18 |