论文中文题名: | 急倾斜矿床深部开采围岩运动规律研究 |
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学号: | G07083 |
保密级别: | 公开 |
学科代码: | 081901 |
学科名称: | 采矿工程 |
学生类型: | 硕士 |
学位年度: | 2011 |
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研究方向: | 矿山压力与岩层控制 |
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论文外文题名: | Sharp Inclined Deposit Deep Mining Strata Movement Rules Research |
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论文中文摘要: |
摘 要
本文以银母寺急倾斜矿床深部工程为背景,通过对深部典型条件岩体力学性质单轴试验和三轴试验的测定,确定了岩石的力学参数;采用现场视窗观测法进行地质力学统计分析,基于国际岩石力学分类方法,进行了深部岩体结构分类。给出了深部岩体分析参数计算表达式和强度准则,通过建立矿井3D整体地质力学模型,分析得到初始地应力分布规律和开采历史地应力分布规律,进一步建立开采计算模型,分析由于矿房开采、矿石充填和放矿过程等工艺影响下30米段高和60米段高矿房岩盘变形运动规律;通过超声波观测,研究了深部地压引起的矿房围岩、矿柱破坏规律,探讨了深部大段高采场矿房围岩破坏机理。最后,运用深部围岩运动规律的研究结果,提出与银母寺深部开采围岩控制相配套的开采参数和围岩锚固参数。现场试验结果表明,研究成果为银母寺矿的深部开采提供了科学依据,成功解决了银母寺矿井深部开采问题。
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论文外文摘要: |
ABSTRACT
This paper with sharp inclined deposit deep engineering at YinMuSi, through deep typical conditions of mechanical properties of rock mass uniaxial test and the determination of triaxial test, determines the mechanical parameters of rock; and by the field Windows observation method based on statistical analysis of geological mechanics, international rock mechanics classification method, has carried on the deep rock mass structure classification. The analysis parameters computational expressions and mass strength criterion of deep rock are given, through the establishment of the 3D geological mechanics model for the whole mine, the initial geostress distribution and mining stress distribution of history stress distribution are obtained and further establish mining calculation model to analyse 30 metres section and 60 meters high mineral room rock plate section deformation movement rules under the influences of mine mining, ore filling and putting ore process such technology processes. Through the ultrasonic observation, studies the surrounding rock ore room spike destruction rules caused by deep pressure,discusses the damage mechanism of deep delivering high surrounding rock ore room stope. Finally, this paper puts forward the mining parameters and surrounding rock anchorage parameters matching the deep mining of surrounding rock control at YinMuSi according to the results. Field test results show that the paper results provide scientific basis of YinMuSi mine deep mining, success in solving the deep mining problems at YinMuSi.
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中图分类号: | TD853.392 |
开放日期: | 2011-06-16 |