土工合成材料约束碎石桩承载特性数值分析
Numerical analysis of bearing characteristics of geosynthetics-enclosed stone columns
葛安定 1曹晓航2
作者信息
- 1. 中交第一航务工程勘察设计院有限公司,天津 300222
- 2. 中交第一航务工程局有限公司,天津 300461;中交天津港湾工程研究院有限公司,天津 300222;天津市港口岩土工程技术重点实验室,天津 300222;港口岩土工程技术交通行业重点实验室,天津 300222
- 折叠
摘要
工程实践中碎石桩常因缺乏足够的侧向约束力导致其应用效果不佳,复合地基沉降难以得到有效控制.为解决普通碎石桩应用效果不佳的问题,基于ABAQUS有限元数值软件建立土工合成材料约束桩复合地基模型,研究不同桩体长径比、桩体模量、土工合成材料强度等因素对承载特性的影响.结果表明,土工合成材料可以有效地为碎石桩提供侧向约束并提高复合地基承载力.研究结果有助于深入认识土工合成材料约束桩加固地基机理,为相关工程施工提供参考.
Abstract
In engineering practice,stone columns often have poor application effects due to the lack of sufficient lateral binding force,making it difficult to effectively control the settlement of composite foundations.In order to solve the problem of poor application effect of ordinary stone columns,a geosynthetics-enclosed stone column composite foundation model was established based on ABAQUS finite element software,and the influence of different column length diameter ratio,column modulus,geosynthetics strength and other factors on the bearing characteristics of geosynthetics-enclosed stone column was studied.The results show that geosynthetics can effectively provide lateral restraint for stone columns and improve the bearing capacity of composite foundation.The research results are helpful to deeply understand the mechanism of reinforcing foundations with geosynthetics-enclosed stone columns,and provide reference for related engineering construction.
关键词
约束碎石桩/土工合成材料/数值模拟/承载特性Key words
enclosed stone column/geosynthetics/numerical simulation/bearing characteristics引用本文复制引用
出版年
2024
NETL
NSTL
万方数据