1)full-mechanized caving mining综放开采
1.Aiming at the characteristics of large falling height and complex falling configuration in full-mechanized caving mining,three-dimensional distinct element code-3DEC is employed to simulate falling rules of surrounding rock in gob,movement direction of rock beam and possible dynamic loading brought by it with different collapse geometry parameters in full-mechanized caving mining face.基于综放开采,采空区冒落高度大、冒落形态复杂的特征,采用三维离散元程序3DEC模拟分析了综放工作面岩层不同垮断几何参数时的采空区覆岩冒落规律、岩梁运动趋势及其对采场可能带来的动载荷。
2.According to Datong "dual hard" full-mechanized caving mining conditions,the practice of fire prevention and extinguishment technology by optimizing the ventilation systems,balancing gas pressure,spraying frog in working face,injecting nitrogen into coal seam,and grouting into gob in full-mechanized caving mining face was discussed.针对大同两硬条件综放开采的特点,论述了利用通风系统优化、均压防灭火、工作面喷雾阻化、注氮惰化、采空区注浆等综合防灭火技术防治自然发火的实践,对其他矿区有一定的参考价值。
3.Based on in-situ observation of underground pressure in full-mechanized caving mining coal seam with large dip angle and 1000m deep in Zhaogezhuang Colliery,Kailuan Group,the behavior of underground pressure of mining face with large dip angle is fully analyzed in this paper.结合开滦赵各庄矿千米深部大倾角综采放顶煤的开采,通过现场矿压观测,较全面地分析研究了大倾角工作面的矿压显现规律,提出了影响大倾角煤层开采矿压的因素及大倾角工作面综放开采矿压显现的新特征。
英文短句/例句
1.Roof-coal Falling Characteristics Analysis in Fully-mechanized Caving综放开采顶煤冒放性因素分析与评价
2.Reasonable Mining Height of Full-mechanized Caving Mining in Softly Inclined and Extra-thick Coal Seam缓倾斜特厚煤层综放开采合理开采厚度的确定
3.Study on the Fire Fighting Technique of the Coal Spontaneous Combustion of Full Mechanized Top Coal Caving Mining;易自燃煤层综放开采防灭火技术研究
4.Stability analysis of basic roof in fully-mechanized top-coal caving mining of the steep seam急斜煤层综放开采中基本顶的稳定性
5.Study on top-coal recovery in full-mechanized by similarity simulation综放开采顶煤回收率的相似模拟研究
6.Full-mechanized Caving Mining Test under Soft Sand Aquifer松软砂岩含水层下控水综放开采试验
7.Roof breaking law along top-coal caving face综放开采沿工作面倾向顶板垮落规律
8.Key Technologies on Fully Mechanized Top Coal Caving Mining of Ultra Thick Seam in Tashan Mine塔山煤矿特厚煤层综放开采关键技术
9.Numerical simulation analysis of underground pressure in fully mechanized top-coal caving face of Tingnan coal mine亭南煤矿综放开采矿山压力数值模拟
10.Study of the Numerical Simulation of the Fire Extinguishing and Prevention with Liquefaction Nitrogen in the Goaf Using Comprehensive Mechanized Caving Method;综放开采采空区液氮降温防灭火数值模拟研究
11.Distribution of Mining Fissures Induced by Fully Mechanized Caving Mining and Analysis on Their Evolvement Characteristics综放开采采动裂隙分布及其演化特征分析
12.Theory study on the load on support of long wall with top coal caving with great mining height in extra thick coal seam特厚煤层大采高综放开采支架外载的理论研究
13.A study on the comprehensive grouting technology to reduce surface subsidence resulting from top coal caving longwalling in extra-thick coal seams特厚煤层综放开采地表减沉注浆综合技术
14.Study on Coal Rock Caving Laws and Technological Parameters of Top-Coal Caving of Fully Mechanized Mining with Great Cutting Height for Thick Coal Seam;厚煤层大采高综放开采的煤岩冒放规律及放煤工艺参数研究
15.With the increase of the depth of coal seams mined, rock bursts will easily occur in gateways with fully-mechanized sublevel caving mining.随着煤矿开采深度增加，综放开采回采巷道易发生冲击地压危害。
16.Study on Techniques of Improving Falling Ability of Highly Tough Coal at Longwall Top-coal Caving;改善综放开采高韧性顶煤冒放性技术研究
17.Optimized Trial on Fully Mechanized Top Coal Caving Mining in High Inclined Seam大倾角煤层综放开采放煤工艺优化试验
18.Analysis of Coal Mass Gas Pressure and Intrinsic Gas Energy near Coal Caving Mouth during Primary Caving Period of Fully MechanizedCaving Mining综放开采初放期放煤口附近煤体瓦斯压力及内能分析
相关短句/例句
fully mechanized top coal caving mining综放开采
1.Research on fully mechanized top coal caving mining technology for ultra thick seam with high tenacity, easy to be combusted and hard to be falling;高韧性易自燃难冒特厚煤层综放开采技术研究
2.Research on coal caving characteristics and caving technology for fully mechanized top coal caving mining face in thick seam with complicated parting structure;含夹矸结构复杂厚煤层综放开采顶煤放出特点与放煤工艺研究
3.Research on movement and displacement failure features of top coal and strata in fully mechanized top coal caving mining in thinner thick seam;较薄厚煤层综放开采顶煤岩运移破坏特征研究
3)fully mechanized top-coal caving综放开采
1.in the process of determining the length of mining face which influences the effect of mining,many factors influence the determination of the length for fully mechanized top-coal caving face.为了解决高瓦斯厚煤层综放开采合理工作面长度的确定问题,采用理论分析和现场实验的方法,在对高瓦斯厚煤层综放工作面长度的多种因素分析的基础上,对以工作面通风能力校核工作面长度的经验公式进行了比较分析,提出了适合综放开采的以工作面通风能力确定工作面长度的校核公式。
2.In this paper,the mechanical field characteristics of fully mechanized top-coal caving(FMTC) laneway surrounding rock are researched systematacially based on the results of in-situ measurement combined with numerical simulation in different mining thickness.该研究成果为采场巷道合理布置与维护及综放开采动力灾害的防治,提供了理论依据。
4)fully mechanized caving综放开采
1.Determination of top coal cavability in fully mechanized caving;综放开采顶煤冒放性确定
2.In quasi?thick seam of Zhengchengdi mine of Xishan mine area,fully mechanized caving technology was extended and achieved success.轻型综放开采技术在太原市西山矿区镇城底矿的较薄厚煤层中进行了推广应用 ,并获得了初步成功 ,它扩大了综放开采技术的应用范
3.The feasibility of the fully mechanized caving,where there is a coal seam under a porosity aquifer in quaternary period,has been detailedly research in this paper.对第四系松散孔隙含水层下实施综放开采的可行性进行了细致的研究 ,并进行了开采试验 ,获得了成功 ,对类似条件下的矿井开采有很好的指导作
5)fully mechanized top coal caving综放开采
1.Intenerating technique of top coal in fully mechanized top coal caving hard thick coal seam;硬厚煤层综放开采顶煤弱化技术研究
2.Support instability is a normal phenomenon in the fully mechanized top coal caving face with steep coal seams.支架失稳是大倾角煤层综放开采中常见的现象,本文结合东滩煤矿1301面42°倾角,特厚煤层的条件,对支架下滑、倾倒、尾部受扭3种主要失稳方式的机理进行了研究。
3.The effect of drawing top coal window parameter,drawing procedure,and drawing interval on coal-gangue flow field resulted from great mining height fully mechanized top coal caving was analyzed based on theory and loose material model experiment.采用理论和散体模型实验分析了大采高综放开采放煤口参数、采放比、放煤工序和放煤步距对煤矸流场的影响。
6)sub-level Caving Mining综放开采
1.Mining technology about sub-level caving mining in 5 m thick coal seam5M左右厚煤层综放开采回采工艺
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