• 根据煤层瓦斯含量公式计算出不同冻结温度下煤层瓦斯压力

    According to the coal seam gas content formula, the gas pressure in different freezing temperature was calculated.

    youdao

  • 煤层瓦斯压力煤层透气性双重因素影响,煤层瓦斯后期释放主要通道

    Being influenced by the dual factor of the coal seam gas pressure difference and ventilation, the coal seam is the main route at the later period of the gas release.

    youdao

  • 最后提出了利用煤屑解吸瓦斯流量测算煤层瓦斯压力瓦斯含量计算方法和计算公式

    Finally the calculation method and formula of coal methane content and pressure are presented by using the emission rate from broken coal.

    youdao

  • 煤层瓦斯压力决定煤层瓦斯含量主要因素也是瓦斯突出危险性预测重要参数

    The gas pressure is a main factor of deciding gas content in coal seam. It is an important parameter of the dangerous prediction for coal and gas outburst too.

    youdao

  • 介绍德国瓦斯突出危险研究过程计算方式求煤层瓦斯压力方法结果进行了分析对比。

    The paper describes the computation method of seam gas pressure in the research on gas and coal outburst in Germany. Analysis and comparison are made on the obtained results.

    youdao

  • 瓦斯压力测定一直是个难题尤其煤层里测定更是难以保证

    To measure gas pressure is always a difficult problem, especially mensuration in coal bed is more difficult to guarantee.

    youdao

  • ()瓦斯突出煤矿严重自然灾害之一,且是一种复杂动力现象,是地应力煤层中的瓦斯压力煤的结构力学性质综合作用的结果。

    Coal (rock) and gas outburst is one of intense natural disaster, is also a complicated and dynamical phenomenon, caused by stress, gas pressure of coal bed as well as coal structure.

    youdao

  • 隧道穿越不良地质有:压力煤层采空区瓦斯岩溶断层等

    The poor geological conditions that the tunnel confronts include high-pressure water, coal seam, goaf, gas, Karst and fault.

    youdao

  • 隧道穿越不良地质有:压力煤层采空区瓦斯岩溶断层等

    The poor geological conditions that the tunnel confronts include high-pressure water, coal seam, goaf, gas, Karst and fault.

    youdao

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