| 碎石桩复合地基应力及孔隙水压力的原位观测分析 |
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| 引用本文： | 韩杰,叶书麟,张德松. 碎石桩复合地基应力及孔隙水压力的原位观测分析[J]. 岩土工程学报, 1993, 15(5): 40-47 |
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| 作者姓名： | 韩杰 叶书麟 张德松 |
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| 作者单位： | 同济大学地下工程系；上海良工阀门厂 上海200092；上海200092；200082； |
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| 摘 要： | 通过对建筑物施工过程中基础下碎石桩加固地基的应力和孔隙水压力的原位观测,获得了非常有益的数据。试验表明:建筑物基础下观测到的应力和桩土应力比变化规律与静载荷试验中载荷板下观测到的结果基本一致,施工期地基土中孔隙水压力不但增长幅度不大,而且消散很快。
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| 关 键 词： | 碎石桩复合地基 原位观测 静载荷试验 桩土应力比 超孔隙水压力 孔隙水压力系数 建筑物基础 桩间土 固结度 桩体 |
In-situ Observations on Back-pressures and Pore Water Pressures in Composite Foundation with Stone Columns |
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| Han Jie,Ye Shulin,Zhang Desong. In-situ Observations on Back-pressures and Pore Water Pressures in Composite Foundation with Stone Columns[J]. Chinese Journal of Geotechnical Engineering, 1993, 15(5): 40-47 |
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| Authors: | Han Jie Ye Shulin Zhang Desong |
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| Affiliation: | Tongji University Shanghai Shanghai Lianggong Valve Plant |
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| Abstract: | Valuable data were obtained from field observations on back-pressures and pore water pressures in composite foundation with stone columns during construction of a building. The measured back-pressures under the foundation and their stress concentration factors were in good agreement with those from the loading tests. It is shown that the monitored excess pore water pressures during construction do not increase greatly but dissipate quickly. |
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