摘要
文章通过分析散体材料桩的鼓胀破坏机制,采用数值方法对考虑散体材料桩鼓胀变形模式的桩侧土体极限侧向土压力进行研究,并通过相关参数分析,在被动土压力法的基础上对散体材料桩单桩承载力公式进行了修正,修正后的公式更符合散体材料桩鼓胀破坏机理,且更接近工程实践观测的结果。
By analyzing the bulging failure mechanism of discrete material piles, this article used the numerical method to study the ultimate lateral earth pressure of pile-side soil body considering the bulging deformation mode of discrete material piles, and, through the related parameter analysis, it modified the single-pile bearing capacity formula of discrete material piles based on passive earth pressure method.The modified formula is more in line with the bulging failure mechanism of discrete material piles,and is closer to the observation results of engineering practice.
作者
陈君炜
谭鑫
CHEN Jun-wei;TAN Xin(Guangxi Communications Investment Group Liuzhou Expressway Operation Co.,Ltd.,Liuzhou,Guangxi,545000;Hunan University,Changsha,Hunan,410082)
出处
《西部交通科技》
2018年第8期6-10,共5页
Western China Communications Science & Technology
基金
国家青年自然科学基金项目(51508181)
关键词
复合地基
散体材料桩
鼓胀变形
鼓胀土压力
数值模拟
Composite foundation
Discrete material pile
Bulging deformation
Bulging earth pressure
Numerical simulation