基于热力学理论煤层瓦斯压力计算方法研究

煤层原始瓦斯压力的准确测定一直是现场瓦斯防治工作的技术难题,而传统的各种测定方法均存在一定的局限性。从热力学的角度分析了煤层中微元体的各种状态参数及其变化过程,在此基础上应用力学的相关理论,构建了煤层原始瓦斯压力的数学模型并求出其解析式。现场实测和理论计算的比较分析表明,该计算方法能较准确地反映实测结果。研究结果不仅从理论上进一步完善了煤层瓦斯压力的计算方法,而且对准确确定深部开采煤层和高温矿井的瓦斯压力具有重要意义。

Study of Calculating Method on Coal Seam Gas Pressure with Thermodynamic Theory

It is all along technology problem for gas prevention and control in spot that how to mensurate accurately original gas pressure,however traditional measures have respectively deficiencies.In term of thermodynamics theory,the paper analyzed diversified parameters and change processes of coal min-object.Base on mechanics correlation theoretics,a mathematic model on original gas pressure in coal seam is set up and the analytic formula is developed.The contrast and analysis of measuring results with theoretica...