Experimental Study on Horizontal Bearing Characteristics of Tripod-bucket Foundation in Sand

被引：0
|
作者：
Zhao X. [1 ,2 ]
Li Y. [1 ,2 ]
Wang X. [3 ]
Zhu W. [1 ,2 ]
Dai G. [1 ,2 ]
Deng W. [1 ,2 ]
机构：
[1] School of Civil Engineering, Southeast University, Nanjing
[2] Key Laboratory of Concrete and Prestressed Concrete Structure of Ministry of Education, Southeast University, Nanjing
[3] T. Y. Lin International Engineering Consulting(China)Co Ltd, Nanjing
来源：
Zhao, Xueliang (zhaoxl@seu.edu.cn); Zhao, Xueliang (zhaoxl@seu.edu.cn) | 1600年 / Hunan University卷 / 48期
基金：
中国国家自然科学基金; 国家重点研发计划;
关键词：
Horizontal bearing capacity; Model test; Sandy soil; Triple-bucket foundation;
D O I：
10.16339/j.cnki.hdxbzkb.2021.09.003
中图分类号：
学科分类号：
摘要：
Based on a series of small-scale model tests, the bearing characteristics of suction tripod-bucket foundation under horizontal loads are studied, and the effects of the length diameter ratio, load direction and spacing of suction caisson are investigated. The test parameters include three different aspect ratios (length/diameter), three load directions and three caisson spacing conditions. According to the test results, the characteristics of the load-displacement curve for the tripod-bucket foundation under various working conditions are different. Under the same caisson weight and different spacing conditions, increasing the aspect ratio is beneficial to improve the horizontal bearing capacity. However, before the foundation loses stability, the caisson with a larger aspect ratio results in greater horizontal displacement. The change of load direction has a significant influence on the joint working area of the suction tripod-bucket foundation. When the load direction is 0 degree, the corresponding joint working effect area is the largest, which provides the most benefit to the horizontal bearing capacity of the foundation. On the other hand, when the load direction is 60 degrees, the joint working effect between the caisson and soil is the weakest, resulting in the smallest horizontal bearing capacity. Under the same size and load direction conditions, with the increase of caisson spacing, the bearing capacity increases in different degrees. And the larger the ratio of length to diameter is, the more obvious the increase of bearing capacity is. © 2021, Editorial Department of Journal of Hunan University. All right reserved.
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页码：20 / 29
页数：9
相关论文
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