| 应宏伟,谢康和.软粘土深基坑开挖时间效应的有限元分析[J].计算力学学报,2000,17(3):349~354 |
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| 软粘土深基坑开挖时间效应的有限元分析 |
| FEM analysis on time-effects of deep excavations in soft clay |
| 修订日期：1998-12-17 |
| DOI：10.7511/jslx20003063 |
| 中文关键词: 软粘土 深基坑 固结 有限元法 开挖速率 |
| 英文关键词:soft clay,deep excavation,consolidation,FEM,negative excess pore pressure,rate of excavation |
| 基金项目:国家自然科学基金重点资助项目!( 5973 81 60 ) |
| 应宏伟 谢康和 |
| 浙江大学土木工程系!杭州310027 |
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| 中文摘要: |
| 目前对开挖工程一般只作总应力法分析，本文将Ｂｉｏｔ固结有限元用法饱和软粘土地基深基坑性状的研究，通过典型算例分析土体超散负孔压的分布及分步开挖工程的固结效应，阐述了开挖速率的影响。最后对某深开挖工程实例进行了分析，旨在为基坑工程的设计和施工提供参考。 |
| 英文摘要: |
| HT5SS]FEM coupled with Biot consolidation theory is used to investigate the behaviors of deep excavation in saturated soft clay. Typical example of multi\|stage excavation is analyzed to study the negative excess pore pressures and the consolidation effects on the soil displacements during and after excavation. The influences of the rate of excavation are also investigated. Finally a deep excavation case is presented. |
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