Model test research on the formation of freezing wall in seepage ground

Abstract

With the basic similitude laws of model tests,a model test set of artificial seepage ground freezing with two holes was set up. According to the orthogonal designation and completion of model tests of seepage ground freezing of two holes, studied the closure time of two ice poles and the upward and downward temperature development influenced by different seepage velocity and holes space under the condition of the normal brine freezing technology. The closure time mount up sharply, when seepage velocity increases from second level of 0.7 m/h to the third level of 1.0 m/h, and the seepage velocity is the most important factor effected the development of upward freezing wall. The best way to stand against water flow influence is to cut down the holes space.