| 考虑水化状态影响的膨胀土强度特性 |
| |
| 引用本文： | 李雄威,孔令伟,郭爱国,张勇.考虑水化状态影响的膨胀土强度特性[J].岩土力学,2008,29(12):3193-3198. |
| |
| 作者姓名： | 李雄威 孔令伟 郭爱国 张勇 |
| |
| 作者单位： | 1. 中国科学院武汉岩土力学研究所 岩土力学与工程国家重点实验室，武汉 430071；2. 常州工学院 土木建筑工程学院，江苏 常州 213002 |
| |
| 基金项目： | 国家自然科学基金资助项目
，
湖北省青年杰出人才基金项目
，
交通部西部交遥建设科技项目
|
| |
| 摘 要： | 从膨胀土水化作用时间和温度两个影响因素出发，在室内研究了膨胀土的膨胀变形特性与强度特性。结果表明，膨胀土饱和后还会经历相当长的膨胀过程，这就使得土体的饱和强度随水化作用时间的延长而逐渐降低；膨胀土在膨胀过程 中，温度越高，土体的膨胀速率越大，土体最终的膨胀率也越大，土体的饱和强度随水化作用温度的升高而逐渐降低。饱和膨胀土的抗剪强度指标宜考虑水化作用时间和温度的影响，采用变动强度公式更为合适。
|
| 关 键 词： | 膨胀土 水化 饱和 变形 强度 |
| 收稿时间： | 2007-12-06 |
Strength characteristics of expansive soil considering effect of hydrous state |
| |
| LI Xiong-wei,KONG Ling-wei,GUO Ai-guo,ZHANG Yong.Strength characteristics of expansive soil considering effect of hydrous state[J].Rock and Soil Mechanics,2008,29(12):3193-3198. |
| |
| Authors: | LI Xiong-wei KONG Ling-wei GUO Ai-guo ZHANG Yong |
| |
| Institution: | 1. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 2. School of Civil Engineering & Architecture, Changzhou Institute of Technology, Changzhou 213002, China |
| |
| Abstract: | Considering two effects of hydration time and temperature,the swelling deformation and strength characteristics of expansive soil are studied through the laboratory test.The results show that the swelling process of expansive soil after saturation could even still continue for quite a long time,which makes the strength of saturated soil gradually reduced with the extended hydration time.Moreover,during the swelling process of expansive soil,the higher the hydration temperature is,the greater the swelling ra... |
| |
| Keywords: | expansive soil hydration saturation deformation strength |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《岩土力学》浏览原始摘要信息 |
| 点击此处可从《岩土力学》下载免费的PDF全文 |
