DESIGN AND APPLICATIONS OF RIGID PILES WITH PRESTRESSED ANCHORED CABLES IN LANDSLIDE ENGINEERING TO GREATWALL MINE

摘要

The technique of rigidity stabilizing piles with pre-stressed anchor cables is an effective measure in landslides remediation works. Compared to stabilizing piles, they make the state of the forces on piles more reasonable. In this paper the mechanical and mathematical model of piles with pre-stressed anchor cables have been set up, which establishes the foundation of the calculation for the structure design of the system. The analytical and numerical solutions of the established mathematical model have been achieved. In the whole paper, two-parameter method is employed to calculate the coefficient of subgrade reaction or subgrade modulus. The anchor cable will be regarded as an elastic hinge. Under the consideration of deformation harmony of anchor cable with piles bodies and pile bottom conditions, the solutions of the internal forces distribution along piles bodies are presented.