Study on the Law Load of the Secondary Lining of Da Liang Tunnel

Abstract:

In order to determine the best load combination and the safety factor of concrete section, contact pressure of the three dangerous sections of the secondary lining has been measured. By numerical simulation of FEM, load structure model has been created and the measured pressure has been exerted, then internal forces of each dangerous section were calculated out. Thus the most unfavourable load of each section was determined. Using statistical software, a series of load combination and the best load combination were acquired. As the result indicates, when the horizontal load and vertical load are 0.5 MPa, the safety factor of concrete section is the maximum and the load combination is the best one. It is reliable using the measure in the site with indoor numerical simulation of FEM to determine the best load combination of the secondary lining and the factor of concrete section.

• Periodical: Applied Mechanics and Materials (Volumes 644-650)
• Pages: 5093-5096
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.644-650.5093
• Online since: September 2014
• Authors: Zhi Jie Wang, Sheng Ya He*, Gen Qiang Wu, Ye Yuan
• Keywords: Best Load Combination, Measured Pressure, Numerical Simulation, Safety Factor, Secondary Lining

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