摘要
对国内某煤炭地下气化现场气化煤层的顶底板岩石不同温度下的热力学参数资料进行了收集整理,建立了岩石及煤比热容和导热系数随温度变化的拟合曲线方程,并采用COMSOL模拟了研究区地下气化的温度场分布。根据温度场模拟结果运用FLAC^(3D)软件对研究区的覆岩裂隙场进行了数值模拟,证明了数值计算模型及其结果的合理性。
The thermodynamic parameters of surrounding rock of the coal seam in a certain gasification field were collected, the relationships of the heat capacity and thermal conductivity of the surrounding rock of the coal seam and the temperature were established. The temperature field was simulated by using COMSOL, and base on the temperature field, the fracture field of the overburden strata was simulated by using FLAC^3D. The simulation values are close to the real values, the numerical calculation model and its results are reasonable.
出处
《煤炭技术》
CAS
北大核心
2016年第6期177-179,共3页
Coal Technology
基金
国家自然科学基金资助项目(41172213
41272275)
关键词
煤炭地下气化
温度场
覆岩
裂隙场
UCG
temperature field
overburden strata
fracture field
