摘要
根据人工多圈管冻结模型试验,认为温度梯度是引起水分迁移的主要原因.提出了正冻土中水热耦合控制微分方程,并在AD INA有限元程序中实现了水、热耦合的数值模拟.数值模拟数据与模型试验中的测点温度、含水量变化规律一致,表明利用该方法可以进行人工多圈管冻结壁形成过程的水热耦合分析.
The artificial multi-coil pipes frozen model experiment results show that the temperature gradient is the main reason of causing moisture migration. Therefore the moisture-temperature coupling control equation was proposed in the frozen soil. The numerical simulation on moisture-temperature coupling was realized in ADINA finite element program. Temperature and moisture change rule of the measuring points in freeze model experiment is consistent with the numerical simulation results, it shows that using this method can carry on the moisture-temperature coupling analysis in the formation process for artificial multi-coil pipes frozen wall.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2006年第6期757-760,共4页
Journal of China Coal Society
基金
安徽省自然科学基金资助项目(050440501)
安徽省高校矿山建设工程重点实验室基金资助项目
关键词
多圈管冻结
水热耦合
温度场
水分场
multi-freezing-tube cycles
moisture-temperature coupling
temperature field
moisture field
