• 本文介绍了德国煤矿沿空技术相应防治自然灾害措施

    This text introduces the technology of remained tunnel for continuous usage in work-out area in Germany coal mine and corresponding measures of preventing and curing natural disast

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  • 通过结构关键稳定性分析论证综放沿空留巷可行性

    Based on the stability analysis of key-block with large structure, the feasibility of gob-side entry retaining has been demonstrated.

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  • 研究结果对综放内充填沿空留巷应用提供理论依据设计指导

    The results can provide theory basis and design guidance for the application of the GERTCF.

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  • 研究成果较大采高工作面沿空留巷技术提供理论依据借鉴经验

    The research result provides a theoretical basis and some useful experience for the gob-side entry retaining work of large mining-height working faces.

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  • 该法施工工艺简单成本低廉,使沿空留巷达到较好的技术经济效果。

    The advantages of this method are inexpensive, simple for construction and able to get good benefits to retain roadway for next sub-level.

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  • 分析沿空留巷围岩移动力学根源帮内支承应力变化规律

    An effort has been also made to diagnose the dynamic causes of displacement of the surrounding rocks and the occurrence of changes of bearing stress in roadway coal pillars.

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  • 分析了沿空留巷围岩移动力学根源道煤帮支承应力变化规律

    An effort has been also made to diagnose the dynamic causes of displacement of the surrounding rocks and the occurrence of changes of bearing stre...

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  • 该法施工工艺简单成本低廉,使沿空留巷达到较好的技术经济效果。

    The advantages of this method are inexpensive, simple for construction and able t...

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  • 介绍综采工作面沿空留方法提高采区资源回收率缓解采掘关系紧张问题

    This paper introduces comprehensivelg to adopt in working range leaving lane method to raise rate of recovery of resource, to alleviate and to excavate the tense problem of the relation.

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  • 缩量、理论值现场沿空留试验测结果相同说明了这种力学模型正确性。

    The shrink quantity, theory value and test result of retaining roadways along goaf are the same, this shows the exantness of the mechanics model.

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  • 综放沿空留巷技术研究成果成功应用综放工作面实现集约化高效生产开拓了新路

    Based on the successful application of gob-side entry retaining at longwall top coal caving face, a new way for realizing intensive and high efficiency is put forward in thick seams.

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  • 介绍了45 1工作面运输地质采矿条件沿空留巷支护技术应用情况

    The application of the geology mining condition and the gob-side entry support technology in haulage roadway No. 451 face are introduced.

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  • 工程应用表明锚杆支护沿空留巷有效顶板减小旁支护体载荷

    The project application cases showed that the gob-side entry retaining with bolt support could effectively cut the side roof of the gob-sides and reduce the loading of the support devices.

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  • 通过倾角工作面沿空留巷破坏原因分析提出相应有效支护措施,收到了良好技术经济效果

    Through analyzing on the reason of large tilt Angle face roadway destruction, corresponding efficient support measures are provided, and good technology economic results are made.

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  • 材料充填沿空留技术由于采煤生产中的独特优点而愈来愈受到采矿高度重视,并逐步得到推广应用

    Due to the unique advantages in coal mining, the back fill technology with high water material for rib in used gateway is getting more and more special attraction from the coal mining industry.

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  • 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。

    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.

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  • 通过理论分析实验研究现场试验本文率先国内初步建立了由断面断面沿空留巷组成的综放沿空留巷技术体系

    With theory analysis, experiment research and spot test, this paper takes the lead in establishing technology system of gob-side entry retaining with large section or small one.

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  • 研究表明,综放沿空留巷采场影响时间程度留巷煤柱宽度增加表现出明显滞后现象以及位移压力增长的同步现象。

    The study indicates that with the increase of the coal pillar width the peak mining stress delays its appearance and the increase of the displacement and stress are not synchronous.

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  • 本文指出了我国现有沿空留支护存在问题,分析了沿空留巷支架工作状态载荷构成,提出了沿空留巷支架的合理工作特性、工作阻力以及支护方式。

    The problems related to the supports used in gateways maintained along the goaf-sides are discussed in this paper. The working state of the supports and constituents of the load are analyzed.

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  • 沿煤柱设问题进行了分析计算

    This paper analyzed and calculated width of coal pillar for driving roadway along gob.

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  • 关键分析数值模拟结果确定综放沿空断面留巷的断面形状,给出了梁的合理支护设计

    The entry section shape and the reasonable design of inclined beam were determined according to the analysis of key blocks and the results of numerical simulation.

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  • 同时通过实测模型计算结合,验算区段煤柱尺寸合理性基础上探讨了沿空煤柱开采的可行性。

    Combined with field tests and numerical simulation, the size of section pillar is proved to be reasonable and the feasibility of driving without section pillar is also studied.

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  • 同时通过实测模型计算结合,验算区段煤柱尺寸合理性基础上探讨了沿空煤柱开采的可行性。

    Combined with field tests and numerical simulation, the size of section pillar is proved to be reasonable and the feasibility of driving without section pillar is also studied.

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