香根草加固不同含水率膨胀土的侧限膨胀和直剪试验

周成; 路永珍; 黄月华

doi:10.11779/CJGE2016S2005

香根草加固不同含水率膨胀土的侧限膨胀和直剪试验 English Version

周成^{1, 2},
路永珍¹,
黄月华¹

1. 四川大学水电学院水力学与山区河流开发保护国家重点实验室,四川成都 610065;
2. 南京水利科学研究院水利部土石坝破坏机理与防控技术重点实验室,江苏南京210024

基金项目: 国家自然科学基金项目（51579167）; 水利部行业专项项目（201301022）; 水利部土石坝破坏机理与防控技术重点实验室开放基金项目（YK913002）

详细信息

作者简介:
周成(1970- ),男,江苏赣榆人,教授,从事环境岩土工程研究。E-mail: czhou@scu.edu.cn。

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出版历程
- 收稿日期: 2016-05-18
- 发布日期: 2016-10-19

Oedometer expansion and direct shear tests on vetiver root-reinforced expansive soil with different water contents

1. State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, Chengdu 610065, China;
2. Key Lab of Failure Mechanism and Safety Control Techniques of Earth-Rock Dam of the Ministry of Water Resources , Nanjing Hydraulic Research Institute, Nanjing 210024, China

摘要

摘要: 针对初始含水率不同的膨胀土,开展了侧限膨胀试验和直剪试验,分别测定有、无香根草根系的试样在不同初始含水率时的膨胀力和抗剪强度指标。分析表明香根草根系能够减小膨胀力和增加抗剪强度。试验结果可以启发我们：对于具有一定饱和度的膨胀土边坡,在有降雨的情况下香根草根系可以作为一种柔性加固方法帮助边坡控制膨胀变形和释放膨胀力。
- 膨胀土 /
- 香根草根系 /
- 根系固土 /
- 初始含水率 /
- 柔性加固
Abstract: Oedometer expansion and direct shear tests are conducted on expansive soil with various initial water contents. Expansive force and shear strength of the samples with/without vetiver roots with different initial water contents are measured. The expensive force and shear strength with respect to reinforcement of vetiver roots are investigated. It is illustrated that vetiver root can increase shear strength and be used as flexible reinforcement to control expansive deformation and release expensive force of expansive soil with a degree of saturation under rainfall.
- expansive soil /
- vetiver root /
- root reinforcement /
- initial water content /
- flexible stabilization

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参考文献(16)

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