软土地区堆山工程地基承载力分析

李嘉; 闫澍旺; 林澍; 孙立强

doi:10.11779/CJGE2016S2025

软土地区堆山工程地基承载力分析 English Version

李嘉^{1, 2},
闫澍旺^{1, 2},
林澍^{1, 2},
孙立强^{1, 2}

1. 天津大学水利工程仿真与安全国家重点实验室,天津 300072;
2. 天津大学建筑工程学院,天津 300072

基金项目: 国家自然科学基金项目（51322904,51279127,41402263）; 天津市重点项目基金项目（13JCZDJC35300）; 教育部新教师基金项目（20130032120053）

详细信息

作者简介:
李嘉(1986- ),男,博士研究生,主要从事软土工程性质的研究。E-mail: li_jia@tju.edu.cn。

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出版历程
- 收稿日期: 2016-05-18
- 发布日期: 2016-10-19

Ground bearing capacity of piled mountain in soft soil area

LI Jia^{1, 2},
YAN Shu-wang^{1, 2},
LIN Shu^{1, 2},
SUN Li-qiang^{1, 2}

1. State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China;
2. School of Civil Engineering, Tianjin University, Tianjin 300072, China

摘要

摘要: 近年国内进行了多处人工堆山工程,其特点是堆载分层施加、荷载分布面积大、施工期较长且总荷载非常大,进行常规地基处理往往不能满足堆山荷载对地基承载力的要求。结合堆山工程逐级施加的堆土荷载之间通常有较长时间间隔的特点,认为地基可在分级堆填间歇时间内发生一定程度固结有效应力提高,导致土体强度增加,因此地基承载力也产生相应的提高,利用固结引起土体强度增长导致的承载力提高是堆山工程成功的关键。从有效应力法和剪切试验两方面分析了土体固结引起强度增长的机理和计算,提出不排水条件下考虑土体强度增长的地基承载力分析方法,运用该理论分析了人工堆山工程案例,并对堆山工程提出建议供类似工程参考。
- 堆山工程 /
- 有效固结应为法 /
- 剪切试验 /
- 固结 /
- 承载力
Abstract: In recent years, many piled mountains are built, and their characteristics are as follows: the loads are applied stage by stage, the construction period is long, and the total load is huge. Ground bearing capacity frequently cannot be satisfied by conducting common ground treatments. The time interval between applied loads stage by stage is usually long, in which consolidation occurs and the effective stress increases, resulting in the increase of strength and ground bearing capacity. Utilizing the increase of bearing capacity caused by the increase of soil strength is the key factor for the success of piled mountains. The increase of soil strength caused by consolidation is analyzed by using the effective consolidation stress method and shearing tests. A ground bearing capacity analysis method considering the increase of soil strength is proposed. A piled mountain case is analyzed by this method, and some suggestions are offered for similar projects.
- piled mountain /
- effective consolidation stress method /
- shearing test /
- consolidation /
- bearing capacity

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参考文献(9)

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软土地区堆山工程地基承载力分析 English Version

作者简介: 李 嘉(1986- ),男,博士研究生,主要从事软土工程性质的研究。E-mail: li_jia@tju.edu.cn。

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Ground bearing capacity of piled mountain in soft soil area

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目录

作者简介:
李嘉(1986- ),男,博士研究生,主要从事软土工程性质的研究。E-mail: li_jia@tju.edu.cn。