Stress Measurement Analysis of Freezing Shaft Lining in Gubei Mine Auxiliary Shaft

In order to solve the technical problems of freeze sinking in the deep alluvium in Gubei Mine in Huainan, in-situ measurement on the temperature and stress of freezing well and freezing shaft was conducted during the process of shaft sinking. Then the field data of freezing pressure, freezing shaft temperature and stress were obtained, from which the changing law of freezing shaft pressure was acquired. The result has an important guiding for the design and construction of freezing shaft.