| 基坑内土体加固对围护结构内力的影响分析 |
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| 引用本文： | 罗战友,夏建忠,吴李泉,刘 薇.基坑内土体加固对围护结构内力的影响分析[J].岩土力学,2006,27(Z2):403-406. |
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| 作者姓名： | 罗战友 夏建忠 吴李泉 刘 薇 |
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| 作者单位： | 浙江科技学院 岩土工程研究所，杭州 310023 |
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| 基金项目： | 浙江省高校青年教师资助计划项目（No. 0202303005）；浙江省教育厅研究项目（No. 20061459） |
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| 摘 要： | 软土地区常采用坑内土体加固来达到控制围护结构内力的目的。以弹性地基梁法为基础建立了基坑的有限元模型，利用模型分析了坑内土体的加固深度及程度对围护结构内力的影响。结果表明，围护结构的内力随加固深度及程度的增大而减小，而且还存在着临界加固深度及程度。因此，合理地确定加固深度及程度既能保证基坑安全，又能够节省工程造价。
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| 关 键 词： | 基坑 土体加固 弯矩 值 |
| 收稿时间： | 2006-09-19 |
Analysis of soil influence of improvement on endogenous force of retaining structure for foundation pit |
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| LUO Zhan-you,XIA Jian-zhong,WU Li-quan,LIU Wei.Analysis of soil influence of improvement on endogenous force of retaining structure for foundation pit[J].Rock and Soil Mechanics,2006,27(Z2):403-406. |
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| Authors: | LUO Zhan-you XIA Jian-zhong WU Li-quan LIU Wei |
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| Institution: | Institute of Geotechnical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China |
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| Abstract: | Soil improvement is an effective method to decrease the endogenous force of soil and retaining structure. Based on elastic foundation beam theory, a finite element model of foundation pit was proposed. The effect of soil improvement on endogenous force of the retaining structure was studied. The results show that the endogenous force reduces with the increase of depth and degree of soil improvement. To save the engineering cost and guarantee the pit safety, it is important to reasonably decide the depth and degree of soil improvement. |
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| Keywords: | foundation pit soil improvement bending mement m value |
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