• 文章通过条带充填开采载荷强度理论分析,提出条带充填开采所需留设合理尺寸开采宽度

    Through theoretical analyses of the pillar stress and pillar strength in the pillar-and-stripe mining with backfilling, the rational pillar size and mining stripe opening are deter - mined.

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  • 首次提出了根据屈服宽度条带宽度来确定条带开采安全系数方法,同时给出了设计条带开采尺寸聚。

    It is first raised that safety coefficient can be calculated by using the widths of yield zone and pillar, and the steps of designing the strip mining size are pro-posed.

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  • 首先对地质条件进行分类,采用连续介质力学理论探讨条带开采合理条带尺寸

    The coal mine's geological conditions are classified, and the rational sizes of strip coal pillars in strip mining are discussed using the theory of continuous medium mechanics.

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  • 本文通过相似材料模型试验探讨条带开采条带支撑状态地表移动问题

    Modelling tests are made to study problems of supporting state of coal pillar together with characteristics of overlying strata and surface movement in partial mining in this paper.

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  • 详细分析了条带沿空掘支护特点

    The supporting characteristics of roadways driving along next goaf in repeated mining of strip pillar were analyzed.

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  • 走向条带破坏典型的偏离平衡态的非线性过程

    The instability and failure of strip coal pillar along strike is a typical nonlinear process.

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  • 条带开采解决当今日益严重村庄建筑物问题主要措施之一

    Strip mining is one of the main measures to mine the coal that is buried under villages and buildings.

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  • 实例分析表明公式计算条带柱破坏宽度符合实际的。

    It was shown that the damaged width calculated by the formula was in accordance with the observed data.

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  • 通过数学运算推导条带塑性应力宽度表达式

    A formula of the stress and the width of plastic zone in strip coal pillars is derived by strictly mathematical calculation.

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  • 条带开采尺寸设计,目前大多数采用强度稳定性分析方法,而没有考虑面对稳定性影响

    In the dimension design of coal pillars in strip mining, presently, most of them are carried out by analyzing strength stability, without considering the effect of weak plane in coal pillar.

    youdao

  • 针对条带开采尺寸设计大多数采用强度稳定性分析方法,而没有考虑面对稳定性的影响,由于弱面的存在,柱常常会因抗剪强度不够而产生剪切破坏等问题。

    In the dimension design of coal pillars in strip mining, presently, most of them are carried out by analyzing strength stability, without considering the effect of weak plane in coal pillar.

    youdao

  • 系统地分析条带开采稳定性问题。

    A systematic analysis of pillar stability in strip mining was made. It suggest that a.

    youdao

  • 系统地分析条带开采稳定性问题。

    A systematic analysis of pillar stability in strip mining was made. It suggest that a.

    youdao

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