摘要
Abstract
The mechanism of the action of preloading method is introduced in this paper.Based on Rendulic assumption, the formula of soil horizontal stress after preloading is educed and the influencing factors of horizontal stress are discussed.Two extreme cases are then analyzed.The result shows that the maximum increase of horizontal stress is neither at the top nor at the bottom of soil mass, but in somewhere in the middle of soil mass.ff preloading is smaller, horizontal stress remains almost unchanged before and after preloading when soil mass is within elastic strain range.Horizontal stress increases less if the ratio between resilience index and compression index increased.关键词
堆载预压法/水平应力/静止土压力系数/超固结比Key words
preloading method/ horizontal stress/ static soil pressure coefficient/ over-consolidation ratio分类
交通工程
