The Field Monitoring and Finite Element Analysis of Axial Force of a Deep Foundation Pit's Reinforced Concrete Inner-Supporting

摘要

In this paper, a reinforce concrete inner supporting of tunnel working well is taken as the research object. Based on the result of field monitoring and numerical simulation, the change rules of axial force of inner-supporting are analyzed. By the method of field monitoring, the force condition of reinforced concrete inner-supporting can be understand. By the method of numerical simulation, the finite element model of reinforced concrete inner-supporting can be modeled by ABAQUS. The results show that, the error of measured values and design values is caused by the sensitivity of vibrating wire sensor, temperature and the shrinkage of concrete. This paper can provide a reference for similar measurement projects, whose measured values much larger than design values.