U-shaped Steel Bracket Bearing Structure Analysis And Stability Control

This paper is to analyze the failure characteristics and failure mechanism of the bracket based on the actual geology ?829-1 Face in Luling Mine roadway and as a reasonable choice based on strong support U-shaped steel bracket parameters and programs. By finite element numerical simulation software for the selected few to several factors that affect the carrying capacity of steel is analyzed, and combined with field engineering, structural steel support characteristics were analyzed. Finally, comprehensive laboratory tests and numerical simulation and theoretical analysis of the actual project proposed for field support program.(1) Combined with 8 Luling Coal Mine Engineering Examples Analysis of rock mass characteristics and features of carrying U-shaped steel brackets and failure mechanism.(2) Overview of several common factors that affect the performance of the steel support bearing and use SolidWorks Simulation software for cross-sectional area than the cross, legs, bottom mounting methods several factors including a uniform, non-uniform (shoulder, help section, top centralized) supporting performance under load analysis.(3) Comprehensive field measurement and numerical simulation results, the structural weaknesses block bracket and proposed structure principle and the principle of compensation. Using numerical simulation software to compensate for the carrying capacity of the bracket before and after analysis.(4) Summary results of the support load in the form of cross higher than, the size and location of the establishment of binding four factors and four levels orthogonal experiment. Drawn from primary and secondary impact of the program sequence and the optimal combination of various factors. Ultimately providing solutions for on-site reference the appropriate support, and test results.Through the roof and floor of the project site with the help of two closer and closer to the rate ratio and hydraulic analysis of the measured data obtained pillow, better roadway stability. Verify the feasibility of supporting the program.