• The coal roadway driving is a "bottleneck" problem of influencing and restricting the normal replacement of mining and driving in the outburst mines.

    掘进一直影响制约突出矿井采掘正常接替瓶颈问题

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  • The measurement method is demonstrated valid in outburst elimination by the examination of remnant gas pressure, pre-drainage rate and the zonal verification during the coal roadway driving.

    残余瓦斯压力检验以及掘进期间区域验证,均证明方法布置的预抽钻孔突效果有效

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  • The combined support with cable bolt wire mesh and shotcreting is applied in coal roadway in Xingan coal Mine of Hegang Mining Industry Group.

    鹤岗矿业集团兴安煤矿巷中应用锚索锚杆支护,取得了较好的技术经济效果。

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  • The excavation sequence is the key to the roadway stability in long-span full coal drift.

    跨度巷道开挖顺序关系巷道稳定性关键

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  • Most rock roof of roadway is sediment rock, so its intensity is low, the stratification is a common rock mass structure in coal mines.

    巷顶板多数岩体强度沉积岩,层状岩体结构是沉积岩的主要特征之一。

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  • The prerequisite of rock burst occurrence is that the elastic energy in coal and rock mass around coal mine roadway and stope has accumulated enough.

    冲击地压发生前提矿山井巷采场周围岩体储存了足够的弹性

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  • Take new built mine seam for example, expound the advantages of leaving roadway fashion of concrete coal refuse cinder cement stone wall, and make analysis of technical economic.

    典型新建煤矿煤层阐述采用水泥碴胶泥砌筑石墙方式优点进行技术经济分析

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  • The numerical analogy has been adopted to study the mechanic features influencing stress distribution in coal and rock around the roadway in order to control rock burst disasters.

    为了治理冲击矿压灾害采用数值模拟方法研究了井巷周围岩体力学特性应力分布的影响。

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  • Describes the use of the device in coal mine roadway turning.

    介绍这种装置煤矿井下转弯巷道中的使用情况。

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  • This paper analyzes the problems appearing in the bolt support construction of coal roadway, and advances some solving measures.

    分析锚杆支护施工出现问题提出了相应解决措施。

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  • The paper described the development plan, the selection of seam location and the arrangement methods of main roadway in Jinchang Coal Mine from the designing aspect under present geological condition.

    现有矿井地质条件下,设计方面论述晋昶煤矿开拓方案选择大巷层位设计大巷布置方式

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  • The roadway manage, actual mining and support beside roadway in thin coal seam are introduced. Through planing reliable safety technology measures, better economic benefit has been achieved.

    简要地介绍煤层前进采煤的巷道布置、回采工艺支护等,制定了切实可行安全技术措施取得较好的经济效益

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  • This paper theoretically analyzes the mechanism of truss bolt system, and gives the design of coal roadway support according to the characteristics of the "Three-soft" coal roadway.

    理论上分析桁架锚杆系统作用机理针对“三”全巷道特点,制定了全煤顺槽桁架支护方案。

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  • Combining work practice, the paper focuses on the coal mine's adopting of anchor hollow bar supporting roadway mechanism, construction process and its technique parameters.

    结合工作实际,重点介绍煤矿采用式注浆锚杆支护巷道机理施工工艺及其技术参数。

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  • The deformation feature of deep shaft coal roadway is analyzed, and the reason for many kinds of support failures is studied.

    分析深井煤层巷道围岩变形特征支护失效原因,提出此类巷道内外结构耦合平衡支护原理。

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  • To analyze the deformation characters of soft rock roadway in Fengshuigou Coal Mine, provide corresponding preventive measures and have made good technology economic results.

    分析了风水沟煤矿岩巷变形特点提出了相应防治措施,在软岩支护方面取得较好的支护效果和经济效益。

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  • Study was conducted on the roof of No. 3604S4 coal face and the actual mining roadway with fractals, and a few kinds of functional values of subsidence velocity of this face were obtained.

    3604S4工作面回采巷道顶板进行了研究得到了工作面下沉速度几种分维

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  • Tunneling machine is the most important device in mechanical tunneling of coal mine roadway, but it is operated by driver with hands.

    掘进机煤矿巷道机械化掘进重要设备,目前仍司机手动操作

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  • The horizontal distance X between roadway and the edge of its upper pillar is an important parameter for roadway layout in floor strata and adjacent coal seams.

    巷道上部煤柱边缘之间水平距离X底板岩巷邻近煤层巷道布置重要参数

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  • The phenomenon of underground pressure and principle of surrounding rock control of deep shaft coal roadway are introduced.

    分析深井煤层巷道围岩变形特征支护失效原因,提出此类巷道的内外结构耦合平衡支护原理

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  • Based on the occurring mechanism of slough rock burst, the mechanism to weaken shock with bolt support in coal roadway is analyzed.

    片帮冲击矿压发生机理出发,分析了煤层煤巷采用锚杆支护减的机理。

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  • The main factor causing destruction of roadway in tectonic stress field is found to be the high tensile strain, which appears after the coal seam above haulage roadway is mined.

    提出构造应力场中,开采运输巷道上方煤体使巷道产生拉伸形变巷道破坏主要根源。

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  • 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.

    分析沿空留巷围岩移动力学根源巷道帮内支承应力变化规律

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  • Finally, a calculation example was showed, and the results indicated that the roof separation critical value of gob-side roadway is more than that of solid-coal roadway.

    最后根据回采工作面的基本条件,试算了两类煤的顶板离层临界值与实际观测数据进行了对比分析。

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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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  • The results show that there are great differences in the stress of roadway surrounding rock, and the stress and strain in coal pillar while the fracture line of main roof locates in different places.

    研究表明,基本断裂线位于不同位置巷道围岩应力煤柱应力应变差异较大

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  • The results show that there are great differences in the stress of roadway surrounding rock, and the stress and strain in coal pillar while the fracture line of main roof locates in different places.

    研究表明,基本断裂线位于不同位置巷道围岩应力煤柱应力应变差异较大

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