Optimization Analysis of Inclination Angle of Anchor Rod of Foundation Pit Based on Pile-anchor Support

The inclination angle of the anchor rod is an important parameter for the foundation pit support and a significant role in the design and construction of the foundation pit. In order to explore the inclination mechanism of anchor rod, the finite element analysis software, MIDAS/GTS NX, has been adopted to establish the three-dimensional simulation model of pile-anchor supporting structure to carry out numerical analysis. The stability differences and internal forces of supporting structure have been analyzed through dynamically selecting design parameters of anchor rod of foundation pit. The results show that the valley value appears when the deformation of the supporting structure is within the range of certain inclination angles, and there is the optimal inclination angle range while the inclination parameters should be reasonably chosen in the design of anchor rod to obtain the optimum solution of the cost and effect of the supporting.