| 真空联合堆载预压法加固水工建筑物软基效果检验 |
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| 引用本文： | 吴跃东,殷宗泽,郭纪中.真空联合堆载预压法加固水工建筑物软基效果检验[J].岩土力学,2007,28(4):738-742. |
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| 作者姓名： | 吴跃东 殷宗泽 郭纪中 |
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| 作者单位： | 1. 河海大学岩土工程研究所, 江苏 南京 210098；2. 江苏省电力设计院，江苏 南京 210024 |
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| 摘 要： | 介绍了真空联合堆载预压法加固软土地基的特点，探讨了该方法的加固机理，论证了淮河入海水道张马涵闸软基处理采用真空联合堆载预压法的依据。根据现场的监测资料(包括表面沉降、分层沉降、水平位移、孔隙水压力、真空度等)和原位测试(包括CPT、十字板试验、静载试验和标准贯入试验等)资料，以及土工试验成果的分析和比较，对张马涵闸软基的加固效果进行分析和检验，结果证明，该法完全满足设计要求，为该工法在类似工程软基处理的推广应用提供参考。
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| 关 键 词： | 真空联合堆载预压 水工建筑物 现场监测 原位测试 加固效果 |
| 文章编号： | 1000-7598-（2007）04-0738-05 |
| 收稿时间： | 2005-01-02 |
| 修稿时间： | 2005-01-02 |
Assessment of effect of ground improvement for hydraulic structure using combined vacuum and surcharge preloading |
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| WU Yue-dong,YIN Zong-ze,GUO Ji-zhong.Assessment of effect of ground improvement for hydraulic structure using combined vacuum and surcharge preloading[J].Rock and Soil Mechanics,2007,28(4):738-742. |
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| Authors: | WU Yue-dong YIN Zong-ze GUO Ji-zhong |
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| Institution: | 1.Institute of Geotechnical Engineering, Hohai University，Nanjing 210098，China；2.Jiangsu Electric Power Design Institute,Nanjing 210024, China |
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| Abstract: | The special feature including the mechanism of combined vacuum and surcharge preloading method for soft ground improvement is described.The soft ground improvement work in Huaihe River Zhangma Watergate project is investigated.Based on the field monitoring data(including surface settlement,settlement at different strata,horizontal displacement,pore-water pressure and degree of vacuum),in-situ tests(including CPT,STP,vane shear tests and static load tests) and laboratory tests,the effect of ground improvement is analyzed and assessed.The results satisfy the design requirements.The study provides a reference for similar ground improvement projects using the proposed method. |
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| Keywords: | combined vacuum and surcharge preloading hydraulic structure field monitoring in-situ test ground improvement effect |
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