• The Middle and Lower Jurassic with thick coal seam is widely distributed in Northwest China.

    西北地区侏罗统煤层广布,厚度较大;

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  • The concrete construction methods and effects of mining technology in the middle thick coal seam are introduced.

    介绍煤层回采工艺具体施工方法效果,同时介绍了工作面支护参数计算。

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  • Fully mechanized caving mining has became mining technology of high output and efficiency in thick coal seam mining.

    综采顶煤技术成为煤层开采高产高效采煤技术。

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  • The organization of construction and application result of metal net support in thick coal seam mining are introduced.

    介绍了煤层回采巷道中锚网(索)支护施工组织应用效果分析

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  • This text mainly introduces the main problem existing in the thick coal seam layering mining and the method to solve it.

    本文介绍煤层分层开采存在主要问题解决方法

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  • The selection process and approach on mining technology and equipment in gently inclined and inclined thick coal seam are discussed.

    论述了倾斜、倾斜煤层采煤工艺设备方案的合理选择过程方法

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  • The technology experience of passing stone gate actual mining in combined mining thick coal seam and economic benefit in Xinan coal mine are introduced.

    介绍了新安煤矿煤层综采跨石门回采技术经验取得的经济效果

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  • 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,提示了煤层综放开采顶煤运移应力分布规律

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  • 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.

    采用支护方式维护煤层放顶煤沿底回采巷道时,多数需要考虑锚索加固问题。

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  • 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.

    介绍鹤岗煤田地质情况煤层空间形态变化,岩性、分布规律煤层聚积条件。

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  • 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.

    介绍倾斜煤层回采工艺具体计算数据以及实际施工中的应用效果;同时介绍了采后沿空留巷施工方法。

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  • 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.

    通过数值模拟现场实测方法研究了司马矿基岩煤层开采条件下,保证安全开采的极限基岩厚度

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  • 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自燃煤层瓦斯综合治理技术

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  • 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要求,“全采区巷道布置方式”是兴隆庄煤矿煤层采区巷道布置方式”的发展趋势

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  • 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.

    成功进行了实践应用,为进一步完善松软煤层长壁综放工作面顺槽稳定性控制理论技术体系进行有益探索

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  • 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煤层巷道松动范围,确定合理长度

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  • 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.

    通过云驾岭矿薄厚煤层综放开采实践,提出开采存在问题,如何提高综放工作面单产进行了探讨。

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  • 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.

    根据生产实践锚杆支护理论,论述了煤层断面眼中,如何进行巷道断面形状、锚杆支护参数选择及其巷道的施工方法

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  • 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.

    通过分层开采两个方案比较计算,功定了适合东荣三矿煤层开采的最佳方案。

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  • 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.

    介绍各种煤层采煤方法优缺点,结合王家岭矿井特点选择合适的采煤方法。

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  • 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煤层顶煤冒落特征顶板破坏规律以及地表下沉特点

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  • 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.

    对特煤层条件下采用螺旋钻机开采细长窄煤柱破坏过程进行数值模拟

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  • 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.

    论证倾斜(厚)煤层伪斜上山保护煤柱回收可行性。

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  • 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.

    张双楼煤矿采煤层79煤,煤之间赋存唯一一层厚岩层,即9煤层直接也是7煤层的直接底。

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  • 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.

    张双楼煤矿采煤层79煤,煤之间赋存唯一一层厚岩层,即9煤层直接也是7煤层的直接底。

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