| 山区机场高填方地基工后沉降变形简化算法 |
| |
| 引用本文： | 曹光栩,宋二祥,徐明.山区机场高填方地基工后沉降变形简化算法[J].岩土力学,2011,32(Z1):1-5. |
| |
| 作者姓名： | 曹光栩 宋二祥 徐明 |
| |
| 作者单位： | 清华大学土木工程系;清华大学土木工程安全与耐久教育部重点实验室; |
| |
| 基金项目： | 国家高技术研究发展计划(863计划)资助项目(No.2007AA11Z113); 国家自然科学基金项目(No.50978140); 教育部博士点新教师基金(No.200800031061) |
| |
| 摘 要： | 我国西部山区机场建设的迅猛发展导致高填方地基日益增多。填方体量大、高度高,且存在软弱原地基是此类填方地基的主要特点,这也增加了预测其工后沉降变形的难度。针对山区机场高填方地基的构成特点,将其工后沉降变形的计算分为软弱原地基和上部粗粒填料填方体两部分进行考虑。在分析比较已有简化算法的基础上,对软弱原地基的沉降变形提出了可以考虑施工加载过程的简化计算方法,并应用此法对实际工程进行了计算,所得结果与现场实测值吻合相对较好;通过对室内试验数据进行分析,发现双曲线模型亦能较好的预测粗粒料的蠕变变形,进而在此基础上提出了计算粗粒料填方体长期蠕变变形的简化算法。
|
| 关 键 词： | 高填方 工后沉降 简化算法 蠕变变形 固结变形 |
| 收稿时间： | 2011-01-04 |
Simplified calculation methods of post-construction settlement of high-fill foundation in mountain airport |
| |
| CAO Guang-xu,SONG Er-xiang,XU Ming.Simplified calculation methods of post-construction settlement of high-fill foundation in mountain airport[J].Rock and Soil Mechanics,2011,32(Z1):1-5. |
| |
| Authors: | CAO Guang-xu SONG Er-xiang XU Ming |
| |
| Institution: | （1. Department of Civil Engineering, Tsinghua University, Beijing 100084, China; 2. Key Laboratory of Civil Engineering Safety and Durability of Ministry of Education, Tsinghua University, Beijing 100084, China |
| |
| Abstract: | The rapid development of airport construction in western mountain area of China leads to increasing number of high-fill foundations,of which the main features are the large fill volume,high height and the existence of soft quondam foundation under fill.These features also increase the difficulty of post-construction settlement prediction.According to composition characters of high-fill foundations of mountain airport,the post-construction settlement can be divided into the creep deformation from upper coars... |
| |
| Keywords: | high-fill foundation post-construction settlement simplified calculation method creep deformation consolidation deformation |
| 本文献已被 CNKI 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 |
|
