四川大学学报：工程科学版2011，Vol.43Issue(6)：79-84,6.
一种高切坡超前支护桩的作用机制
Study on the Mechanism of a Kind of Pre-reinforced Pile
摘要
Abstract
Pre-reinforced pile in high cutting slope can reduce the displacement of the slope and ensure the stabilization of the slope.Because of the largely structural stiffness of concrete pre-reinforced pile,the earth pressure acting on pile increases.In order to settle this problem,a layer of EPS backs on to the pre-reinforced pile was set to decrease the interaction force of pre-reinforced piles.Finite element analysis software of ANSYS was used to analyze the value and distribution of displacement,shearing force and bending moment acted on the pre-embedded pile with different thickness and types of EPS backs on to the pre-reinforced pile.The results showed that the thickness and types of EPS have large influence on pre-reinforced piles.With the increase of the thickness of EPS,the earth pressure acting on pile decreases,the displacement of pre-reinforced pile decreases,and the inner force of pre-reinforced pile decreases.With the decrease of the density of EPS,the earth pressure acting on pile decreases,the displacement of pre-reinforced pile decreases,and the inner force of pre-reinforced pile decreases.关键词
超前支护桩/EPS材料/高切坡/数值模拟Key words
pre-embedded piles/soil-pile interaction/expanded polystyrene/numerical analysis分类
建筑与水利引用本文复制引用
何思明,罗渝,何尽川..一种高切坡超前支护桩的作用机制[J].四川大学学报：工程科学版,2011,43(6):79-84,6.基金项目
国家自然科学基金资助项目 （）
交通部西部科技项目 （）
