摘要
利用冻结法凿井测温孔在冻结壁融化过程中的实测数据,对深厚冲积层不同土层的融化速率进行了分析。依据测温孔实测曲线,并对曲线进行了拟合,得到在深厚冲积层冻结壁融化阶段测温孔的温度时间曲线可以用幂函数来表示。并通过计算,得到了不同土层相应的融冻时间比。
The data of the measurement temperature holes in melting stage of frozen wall were used,the melting rate of different soil layers in deep alluvium were analyzed. Based on the measured curve of temperature hole,the results showed that the temperature-time curve of temperature hole can be fit power function during the melting of frozen wall in deep alluvium. The ratio of the melting and freezing time in different soil layers were obtained by computation.
出处
《煤炭技术》
CAS
北大核心
2015年第2期10-12,共3页
Coal Technology
关键词
冻结壁
测温孔
融化过程
温度场
曲线拟合
frozen wall
temperature hole
melting process
temperature field
curve fitting