Study on the Damage Mechanism of Bank Slope-Bridge Pile Foundation Interaction under Reservoir Water Level Cycle

The physical and mechanical properties of the reservoir bank slope deteriorate under fluctuation water level, causing debonding slippage, which can produce different degrees damage to bridge foundation, piers, superstructure, a condition that is difficult treat. In this paper, for Yangtze River Bridge instability problem in Three Gorges area, numerical model was established using finite element-SPH conversion coupling algorithm, pile pier development law mode (deformation stress–strain curves foundation) were obtained according geological conditions location. Additionally, combined with characteristics destabilization area Bridge, landslide management proposed by soil drainage anti-slip reinforcement measures. addition, deflection, comprehensive deflection correction method pushing correction, adding expanding bearing, increasing cross-sectional proposed, so as provide theoretical basis prevention control landslides, service life structure, disposal diseases.