| 泥浆搅拌墙对砂层密封效果的室内试验研究 |
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| 引用本文： | 周睿博,娄炎,黄伟豪,李榕波.泥浆搅拌墙对砂层密封效果的室内试验研究[J].路基工程,2020,0(4):97-101. |
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| 作者姓名： | 周睿博 娄炎 黄伟豪 李榕波 |
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| 作者单位： | 中交四航局港湾工程设计院有限公司,广州510290;南京水利科学研究院,南京210029;中交四航工程研究院有限公司,广州510230;中交四航局广州南沙工程有限公司,广州510230 |
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| 摘 要： | 软土地基在真空预压处理时需要对周边土层进行密封处理，如遇砂层，其密封效果往往欠佳，为考察不同类型的泥浆搅拌墙对砂层的密封效果，进行了室内试验研究:在不同颗粒组成的砂中分别掺入泥浆、膨润土和水泥三种密封材料进行渗透试验及物理力学试验，定量给出了密封效果最佳的掺入比参数。
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| 关 键 词： | 夹砂地层 软基真空预压 泥浆搅拌墙 密封效果 掺入材料 掺入比 |
| 收稿时间： | 2019-10-08 |
Indoor Test Study on Sealing Effect of Slurry Mixing Wall on Sand Stratum |
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| Abstract: | For soft soil foundation, the surrounding soil layer is required to be processed by sealing in vacuum preloading, however in case of sand stratum, the sealing effect is undesirable. In order to investigate the sealing effect of various slurry mixing wall on sand stratum, indoor tests were carried out that the sand of different particles mixed with slurry, bentonite and cement respectively as the sealing material were tested for the permeability and physico-mechanical properties, and then the mixing ratio contributing to optimal sealing effect was given quantitatively. |
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