• The stress field and plastic zone of the main roadway and the branch roadway from 225 to 625 m depth below ground level of Qixiashan mining in Nanjing are studied by using finite element method(FEM).

    通过有限元计算,分析南京栖霞山矿巷道稳定性以及巷道在不同支护条件应力场塑性情况,得出不同埋深时巷道和穿脉巷道较为合理支护方式

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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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  • As the main carrier of urban traffic, urban roadway system's limitation on traffic is the important aspect of cause of problem.

    城市道路系统作为城市交通主要载体,它交通制约因素问题成因重要方面

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  • The structure of surrounding rock is one of main factors which affect the result of grouting to reinforce a roadway.

    围岩结构特性影响巷道围岩注浆加固效果主要因素之一

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  • Through analysis to weak coalbed and harmfulness to roadway, main haulage roadway and room supporting design and adaptability condition are discussed in weak coalbed.

    通过松软煤层的性质及其巷道的危害分析探讨了松软煤层主要运输巷道及硐支护设计形式适用条件

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  • Bolt support has been the main support form of the mine roadway in the under - ground engineering because of its obvious technical and economical superiority.

    由于锚杆支护显著技术经济优越性成为矿井巷道地下工程支护主要形式

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  • The support with bolt and cable is a main way of roadway drivage.

    锚杆锚索支护巷道掘进一种主要形式。

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  • This paper introduces controlled blasting technology on signal chamber of pit-bottom and main haulage roadway, which are of complex condition, lithological character and highly security.

    介绍采用控制爆破技术施工位于井底车场主要运输大巷信集闭峒条件复杂岩性变化大,要求安全性

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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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  • Insulating and cooling technology for high temperature strata roadway in deep mine is studied, and the main purpose of the research is to provide design parameters for cooling of deep mine roadway.

    深井巷道降温提供设计参数深井高温岩层巷道隔热降温技术研究主要目的

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  • The results show that non-uniform thin-walled stress is the main reason of the frequent rock burst in driving roadway.

    结果表明:非均匀薄壁应力现象存在,掘进工作面岩爆频发重要原因

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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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