The Middle and Lower Jurassic with thick coal seam is widely distributed in Northwest China.
西北地区中、下侏罗统煤层广布，厚度较大；
Traditional coal depositional model can hardly explain the cause of this extra-thick coal seam.
传统的煤沉积模式难以解释其超厚煤层的成因。
The concrete construction methods and effects of mining technology in the middle thick coal seam are introduced.
介绍了中厚煤层回采工艺的具体施工方法和效果，同时介绍了工作面支护参数的计算。
Fully mechanized caving mining has became mining technology of high output and efficiency in thick coal seam mining.
综采放顶煤技术已成为厚煤层开采的高产高效采煤技术。
The organization of construction and application result of metal net support in thick coal seam mining are introduced.
介绍了厚煤层回采巷道中锚网(索)支护的施工组织及应用效果分析。
This text mainly introduces the main problem existing in the thick coal seam layering mining and the method to solve it.
本文介绍厚煤层分层开采存在主要问题和解决方法。
The selection process and approach on mining technology and equipment in gently inclined and inclined thick coal seam are discussed.
论述了缓倾斜、倾斜厚煤层采煤工艺及设备方案的合理选择过程、方法。
The technology experience of passing stone gate actual mining in combined mining thick coal seam and economic benefit in Xinan coal mine are introduced.
介绍了新安煤矿厚煤层综采跨石门回采的技术经验及取得的经济效果。
Through numerical simulation and analysis, the top coal movement and stress distribution in mechanized top caving mining of thick coal seam is revealed.
通过数值模拟分析，提示了厚煤层综放开采时顶煤运移和应力分布规律。
The bolting with wire mesh is commonly used actual mining roadway of the thick coal seam, and in some cases the cabling reinforcement should be considered.
采用锚网支护方式维护厚煤层放顶煤沿底回采巷道时，多数需要考虑锚索加固问题。
This paper introduces condition, coal seam form change, distribute law of rock nature and rock phase, thick coal seam collect conditim in Hegang coal filed.
介绍了鹤岗煤田的地质情况，煤层空间形态变化，岩性、岩相的分布规律和厚煤层聚积条件。
The specific calculated data of mining technology in the steeply pitching medium thick coal seam and it's application effect in real construction are introduced.
介绍了急倾斜中厚煤层回采工艺的具体计算数据，以及在实际施工中的应用效果；同时介绍了采后沿空留巷的施工方法。
Through the way of numerical simulation and locale measurement, we found the safety utmost bedrock ply at the condition of thin bedrock and thick coal seam in Sima coal Mine.
通过数值模拟和现场实测的方法，研究了司马矿薄基岩厚煤层开采条件下，保证安全开采的极限基岩厚度。
Combining with the actual situation in Qianqiu coal mine, the technology for comprehensive gas treatment in spontaneously inflammable and specially thick coal seam is introduced.
结合千秋煤矿实际情况，介绍了易自燃特厚煤层瓦斯综合治理技术。
To meet the requirement of mining technology innovation, as a developing trend, mining roadways in thick coal seams of Xinglongzhuang coal mine should be totally located in coal seam.
由此提出，为不断适应采煤工艺变革的要求，“全煤采区巷道布置方式”将是兴隆庄煤矿“厚煤层采区巷道布置方式”的发展趋势。
It was succeeded in practical application. It is an useful exploration for the roadway stability control of fully-mechanized top-coal caving long-wall face in soft and thick coal seam.
并成功进行了实践应用，为进一步完善松软厚煤层长壁综放工作面顺槽稳定性控制理论技术体系进行了有益探索。
Methods to define the laneways loose zone of thick coal seam with enriched gas and spontaneous combustion is studied in the article and define the rational the length of sealed borehole.
研究了铜川矿务局下石节煤矿高瓦斯油气共生易自燃厚煤层巷道松动圈的范围，确定合理封孔长度。
By trial of fully mechanized caving in relatively thinner thick coal seam in Y. J. L. coal Mine, the problems in mining are raised and the ways to increase its unit production are discussed.
通过对云驾岭矿较薄厚煤层综放的开采实践，提出了开采中存在的问题，并对如何提高综放工作面单产进行了探讨。
How to select road section shape, bolting parameter and roadway construction method in large section cut in thick coal seam according to production reality and bolting theory are introduced.
根据生产实践及锚杆支护理论，论述了在厚煤层大断面切眼中，如何进行巷道断面形状、锚杆支护参数的选择及其巷道的施工方法。
Through comparing calculation of two plan which are mining overall height in one times and shise mining, the optimum one suitake for thick coal seam mining in Dongrong No. 3 Coal Mine is determined.
通过一次采全高和分层开采两个方案的比较计算，功定了适合东荣三矿厚煤层开采的最佳方案。
The average coal seam here is three feet thick.
这里的煤层平均为3英尺厚。
This paper introduces the advantages and disadvantages of each coal mining method in the thick seam, and connecting with the features of Wangjialing Mine, selects the appropriate coal mining method.
介绍了各种厚煤层采煤方法的优缺点，并结合王家岭矿井特点，选择了合适的采煤方法。
First, based on similar material model test, top coal cave-in characters in steep and thick seam were studied as well as failure law of main roof and features of surface subsiding.
首先利用相似模拟实验研究了急斜特厚煤层顶煤的冒落特征、顶板的破坏规律，以及地表下沉的特点。
Numerical simulation software FLAC2D is used to simulate the failure mechanism of slender coal pillars (which are of much lower width to height ratios) during high wall mining of thick seam.
对特厚煤层条件下采用螺旋钻机开采细长窄煤柱的破坏过程进行了数值模拟。
The feasibility of the protective coal pillar mining in the artificial inclined steep drift in the thick (ultra thick) coal seam of a large slope is discussed.
论证了急倾斜厚(特厚)煤层伪斜上山保护煤柱回收的可行性。
The average UK coal seam is one metre thick.
英国煤层的平均厚度为1米。
The hard-and-thick strata ACTS both as the floor of coal seam No. 7 and as the roof of coal seam No. 9 in Zhangshuanglou coal Mine; and coal seam No. 9 is also hard.
张双楼煤矿主采煤层为7煤和9煤，两层煤之间赋存唯一一层厚硬岩层，即9煤层的直接顶也是7煤层的直接底。
The hard-and-thick strata ACTS both as the floor of coal seam No. 7 and as the roof of coal seam No. 9 in Zhangshuanglou coal Mine; and coal seam No. 9 is also hard.
张双楼煤矿主采煤层为7煤和9煤，两层煤之间赋存唯一一层厚硬岩层，即9煤层的直接顶也是7煤层的直接底。
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