THE ANALYSIS OF MULTI-COIL PIPE FREEZING MODEL EXPERIMENT

The interaction between the temperature field the pressure field and the moisture field in the multicoil pipe freezing process is a problem of non-linearity and multi-fields, involving many factors. The temperature field, the pressure field and the moisture field in the freezing process are studied by the model experiment based on the Gubei Mine in Huainan, the variations of the temperature filed, the pressure field and the moisture field againt the freezing time are obtained. The results can be used to establish the coupling model of the moister fields, the temperature fields and the pressure fields to be used in mining engineering practice.