coal-seam gas-pressure的意思|示意

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

隧道穿越不良地质有：高压力水、煤层、采空区、瓦斯、岩溶、断层等。

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.

煤层瓦斯压力是决定煤层瓦斯含量的一个主要因素，也是煤与瓦斯突出危险性预测的一个重要参数。

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.

介绍了德国在煤与瓦斯突出危险的研究过程中，用计算方式求煤层瓦斯压力的方法，并对其结果进行了分析对比。

"Pressure relief antireflective" technology is to improve the soft low-permeability coal seam gas extraction rate in an effective way.

“卸压增透”技术是提高松软低透气性煤层瓦斯抽采率的有效途径。

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

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。

The hole enlargement by high - pressure water jet provided a feasible technical way for raising gas drainage effect from coal seam in low permeability and improving the effect of outburst pre...

高压水射流扩孔为提高低透气性煤层的瓦斯抽放效果和扩大防突措施的效果提供了一个可行的技术途径。