Numerical Simulation and Analysis on Freezing Temperature Field of Seam in Mine Shaft
YAO Wei-li
WANG Kai
LIU Xiao-min
Abstract：A ground freezing construction was less to meet the seam. Thus a less study on the freezing performances of the seam was conducted at present and the information on the seam freezing was in-sufficient. With the site test of the samples and the reading of the related documents and information , the proper operation parameters were selected and the actual deflection condition of the freezing bore-holes was considered. A numerical model was established and the numerical simulation and analysis were conducted on the freezing temperature field in the seam with a depth of 625 m in No.2 mine au-xiliary shaft of Dahaize Mine. When the construction of the mine shaft was reached at the layer of the seam as expected ,the temperature filed distribution cloud chart of the seam freezing wall as well as the characteristic curves of the main and interface temperature fields ,and other freezing wall development law and parameters would be obtained. Finally the paper provided the proposals on the freezing and the shaft excavation and lining construction when the mine shaft passed through the seam.
Keywords：mine shaftseamfreezing temperature fieldnumerical simulationfinite element software
Publication Date：2015-08-17
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 41-43,8 )