| 改善膨胀性土变形性能的处理机理研究 |
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| 引用本文： | 申利梅,郭院成,周同和.改善膨胀性土变形性能的处理机理研究[J].郑州大学学报(工学版),2001,22(4):74-76. |
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| 作者姓名： | 申利梅 郭院成 周同和 |
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| 作者单位： | 1. 郑州大学土木工程学院,
2. 郑州大学综合设计研究院, |
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| 基金项目： | 河南省科技攻关项目(981150121) |
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| 摘 要： | 膨胀性土作为区域性特殊土,具有浸水膨胀、失水收缩的工程变形特点,导致其力学性能很不稳定.从改善膨胀性土力学性能,满足工程承载力和变形要求出发,根据某危桥维修加固工程,研究总结了改善膨胀性土力学性能的处理机理.工后检测结果表明,无砂砼压密注浆小桩对膨胀性土的改性处理,理论上是科学的,实践中是可行的,可为同类加固工程提供一定的参考.
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| 关 键 词： | 膨胀性土 无砂砼小桩 加固内聚力 |
| 文章编号： | 1007-6492(2001)04-0074-03 |
| 修稿时间： | 2001年6月10日 |
Study on the Amelioration Mechanism for Expansion-soil |
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| SHEN Li-mei ,GUO Yuan-cheng ,ZHOU Tong-he.Study on the Amelioration Mechanism for Expansion-soil[J].Journal of Zhengzhou University: Eng Sci,2001,22(4):74-76. |
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| Authors: | SHEN Li-mei GUO Yuan-cheng ZHOU Tong-he |
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| Affiliation: | SHEN Li-mei 1,GUO Yuan-cheng 1,ZHOU Tong-he 2 |
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| Abstract: | expansion -soil is a special specimen in some Chinese area, it bulges when soaked in water, shrinks when water in it evaporates. As results in the great deviation of its engineering features. The purpose of amelioration is to meet the bearing capacity and deformation criterion. Based on a case strenghening a bridge, the mechanism of the amelioration is summed up. The testing data denotes that mini pier with none-grit-high-pressure jetting procedure is able to cope with expansion-soil. The principle is reasonable, the procedure is practical, and it can be used as a reference for other projects. |
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| Keywords: | expansion-soil mini pier with none-grit-high-pressure-jetting procedure amelioration cohesion |
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