Application Research Of Reliability Analysis In Deep Bedrock Shaft Of The Design Of The Frozen Wall

The freezing method is a construction method of human construction process in order to increase the strength and stability of rock and soil. Frozen wall is the core of the freezing project, which strength and stability related to the project's success or failure and the economic benefits. The primarily design of the frozen wall is determine the thickness of the frozen wall, the high of excavation section and the average temperature. With the increase of mining depth, The traditional calculation of the frozen wall thickness Couldn`t accurately calculate the thickness of the frozen wall. This article introduces a new method - Reliability Analysis method, Which in the thickness of the Frozen wall of the deep Bedrock Shaft calculation results of the traditional with analysis and Optimization.This article analyzes the theoretical of traditional calculation methods of frozen wall, which obtained the mechanical model of axisymmetric plane, Mechanical model of axial symmetry of space, the experience method of mathematical statistics and temperature data projection method based on hole to calculate the deep bedrock borehole freezing wall there are some limitations, Which describes the reliability analysis method in the analysis in the application of frozen wall. Having analyzed the Monte-Carlo in the geotechnical engineering advantages and the reasons selecting of this paper. Under some assumptions Analysis the deformation characteristics of the frozen wall has established a maximum displacement of the radial deformation equation. According to the reliability of the frozen wall and deformation criterion equation, to established a functionality and reliability limit state equation of Reliability Analysis of the frozen wall and application of MATLAB based on Monte-Carlo analysis of the reliability of frozen wall. Hu Jia-he coal mine as a background analysis different depths of the reliability of the coal seams, And the same rock strata of different depths and different shaft in the same depth of the same composition of coal and rock the reliability of the frozen wall. Analysis of the frozen wall of the variability of each parameter stability of the frozen wall impact.This article will introduce the reliability theory to the study of the frozen wall, which has Established a established reliability theory of the deep Bedrock Shaft Frozen wall, And reliability analysis of the thickness of the frozen wall, through the frozen shaft of Hu Jia-he to illustrate the theoretical feasibility. The Reliability analysis method of frozen wal to the design and checking of the freeze wall to provide a theoretical basis and analysis methods, which study has some significance and practical value.