1) mechanized top-coal caving
综采综放
1.
Comprehensive evaluation system of mechanized top-coal caving mine section geological conditions;
综采综放采区地质条件综合评价系统研究
2) 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。
3) fully-mechanized sublevel caving face
综放采场
1.
Analysis on rupture of hard and massive overlying strata in fully-mechanized sublevel caving face;
综放采场上覆厚层坚硬岩层破断规律的分析及应用
2.
Study on relationship between roof stability and recovery ratio of top coal at first weight period in fully-mechanized sublevel caving face;
综放采场初压阶段顶板稳定性与顶煤放出率关系探讨
3.
During cyclic weighting in fully-mechanized sublevel caving face,the stowing degree of the goaf influences the stability of hard and massive overlying roof.
综放采场周期来压阶段,顶煤从垮落到放完是一个动态过程,采空区的充填程度影响着大厚度坚硬顶板的稳定性,因此,建立与顶煤放出率相关的顶板结构的稳定性判断准则是一个重要的理论课题。
4) 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。
5) caving mining and breaking top
综采放顶
1.
By the benefit comparison and test of two different coal mining methods,the primany full mining is better than caving mining and breaking top,whatever in the coal quality or economic benefit.
通过对大隆矿S1702工作面综采放顶和一次采全高两种采煤方法的试验与效益对比,说明了一次采全高在产品质量和经济效益上都明显优于综采放顶方法,在可能的条件下应是首选的采煤方法。
6) 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。
补充资料：综采放顶煤
综采放顶煤：厚煤层煤炭开采技术之一。把原来分层开采的煤炭，一次采完。方法是，在煤层底部按传统方法开采，使上面的煤炭在矿压的作用下，自动落下来。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条