Research of effect on the levee by drawdown of caisson foundation of the north anchorage of Maanshan Yangtze River bridge

摘要

On account of the north anchorage of Maanshan Yangtze River bridge, the drawdown of caisson foundation may bring about new seepage field of the ground, which make soil consolidate. This paper build two-dimensional plane strain finite-element models of open caisson and the Yangtze River levee, which aim to analyze the effect on the Yangtze River levee by drawdown of the open caisson foundation. Through the seepage analysis of the open caisson foundation and the stability analysis of the slope, this paper obtain the settlement and coefficients of stability against sliding of the Yangtze River levee.