1) sub-level full-mechanized caving mining
分层综放开采
1.
Based on geological conditions of Huating Colliery,this paper applied numerical simulation software to optimizing coal pillar design and roadway layout of sub-level full-mechanized caving mining extremely thick coal seam.
在华亭矿地质条件基础上,利用数值模拟软件对特厚煤层分层综放开采煤柱的留设和分层巷道布置进行优化计算,得出了较优的区段煤柱尺寸和分层巷道的布置方式。
2) comprehensive mechanized zonal mining with moveable-filling
综放分层开采
3) sublevel caving in bottom slice
下分层综放开采
1.
Based on the field measurement and theoretical analysis, the model of strata structure over the coal face is established with fully mechanized sublevel caving in bottom slice.
在大量现场实测与理论研究的基础上，建立了下分层综放开采的覆岩结构模型，并对大、小结构的稳定性及其对矿压显现的影响进行了分析。
4) 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。
5) 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。
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：分层
分层
stratification
l)当i笋j时，S，自气一必; 2)对所有的i6P，S，是局部闭的; 3)X=日;，S; 4)如果S，自瓦笋必，则S，C瓦(且在尸中，这等价于i共j). 作为一个例子，考虑R’中由不等式尸一少)0给出的子集分成四片退(二，夕):x，一夕，>0}，{(x沙):t丫‘一厂，y>0}，{(、，夕):厂一广y<叫，{o，0}. 现在，设X是一个光滑流形M的子集，X的分层是某个偏序集p的尸分解(S)，。，，使得每片是NI的一个光滑子流形. 分层(S)称为瑚litney分层(认币i吹y stratifi以-‘ion)女11果对每对具有S.C=瓦的层S，，凡，下面的瑚ljtlley的条件A和B(V刃〕itlley‘5 cond itio斑A andB)成立.假设点列y*〔S收敛于y任S‘，点列x*E戈也收敛于ye凡·进一步，假设切平面兀*凡收敛于某个极限平面T和割线.不不收敛于某条线l(关于环绕流形M中y的某个局部坐标系)，则 A)兀S，CT; B)l仁了 条件B)事实上蕴涵着条件A). 涉及V门石tney分层的几个事实和定理如下.一个解析流形的任何闭次解析子集允许一个V刃五切ey分层(〔A51).特别地，R”中的代数集，即由有限多个多项式为零给出的集合(也见半代数集(~‘日罗b几icsct))可以瑚litney分层，认币让ney分层空间可被三角音」分([ A41).分层啤口柱五cati即;c甲。中欣叫H川，亦称层化 一个(可能无限维)流形到严格缩减维数的连通子流形的分解.M.H.B创由互ex阳cK而撰【补注】通常，一个空间的“分层”仅只意味着到具有缩减维数的连通片中的某个分解. 设(尸，<)是一个偏序集.拓扑空问x的一个尸分解(尸~d邸nlposition)是以尸的元素为标号的X的子空间S，的局部有限集，使得
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