| 动力排水固结法加固浦东机场促淤地基试验研究 |
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| 引用本文： | 周红波,卢剑华,蒋建军.动力排水固结法加固浦东机场促淤地基试验研究[J].岩土力学,2005,26(11):1779-1784. |
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| 作者姓名： | 周红波 卢剑华 蒋建军 |
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| 作者单位： | 1. 上海建科建设监理咨询有限公司，上海 200032；2. 中信泰富（中国）投资有限公司房地产部，上海 200041；3. 同济大学 桥梁工程系，上海 200092 |
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| 摘 要： | 基于浦东国际机场快件处理中心促淤场地的加固处理实践，介绍采用动力排水固结法处理促淤饱和软粘土地基的工艺对吹填粉细砂上试夯区的试验研究，结果表明采取低能量“少击多遍”的强夯施工工艺，并辅以竖向塑料排水板的方法来加固处理饱和促淤软粘土是可行的，促淤地基的力学性能和变形性能显著提高，并实现了用吹填粉细砂代替中粗砂作为强夯垫层，大大降低了工程成本。通过对大面积强夯施工处理效果的检测表明，动力排水固结法加固处理促淤地基效果明显。
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| 关 键 词： | 促淤地基 塑料排水板 强夯施工工艺 饱和软粘土 水力吹填粉细砂 地基改良 |
| 文章编号： | 1000-7598-（2005）11-1779-06 |
| 收稿时间： | 2004-10-03 |
| 修稿时间： | 2005-03-10 |
Test study on reclaimed land of Pudong Airport improved with dynamic and drain consolidation method |
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| ZHOU Hong-bo,LU Jian-hua,JIANG Jian-jun.Test study on reclaimed land of Pudong Airport improved with dynamic and drain consolidation method[J].Rock and Soil Mechanics,2005,26(11):1779-1784. |
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| Authors: | ZHOU Hong-bo LU Jian-hua JIANG Jian-jun |
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| Institution: | 1. Shanghai Jianke Project Management Co.Ltd, Shanghai 200032, China; 2. Department of Real Estate, CITIC 200041, China; 3. Department of Bridge Engineering, Tongji University, Shanghai 200092, China |
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| Abstract: | Based on the improvement practice on the reclaimed land on the site of express mail disposal center of Pudong International Airport, the construction technology of improving hydraulic silty fine sand and saturated soft clay on the reclaimed land with DDCM (dynamic and drain consolidation method) is presented. Combined with testing of properties of soils before and after improving, the field test results on the testing area for dynamic consolidation on the hydraulic silty fine sand show that it is feasible to improve the saturated soft clay on the reclaimed land with the new construction technology of low-energy and “fewer times and more cycles” dynamic compaction combined with the plastic vertical drain. The mechanical property and deformation characteristics of saturated soft clay on reclaimed land are improved obviously after improving with the new technology above mentioned. It has been achieved to use hydraulic filled silty fine sand as the dynamic consolidation cushion in this project. The investment has also been reduced largely with the use of hydraulic filled silty fine sand instead of mid-coarse sand as the cushion for dynamic consolidation. The test results of the improving construction on the large area of reclaimed land show further that the improvement effect of DDCM on reclaimed land is remark. |
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| Keywords: | reclaimed land plastic vertical drain dynamic consolidation technology saturated soft clay hydraulic filled silty fine sand soil improvement |
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