| 天然沉积饱和有明粘性土的Burland 孔隙指数与归一化含水量的关系 |
| |
| 引用本文： | 洪振舜,刘志方,郭海轮,刘松玉.天然沉积饱和有明粘性土的Burland 孔隙指数与归一化含水量的关系[J].岩土力学,2004,25(11):1698-1701. |
| |
| 作者姓名： | 洪振舜 刘志方 郭海轮 刘松玉 |
| |
| 作者单位： | 东南大学 岩土工程研究所，江苏 南京 210096 |
| |
| 基金项目： | 教育部留学回国人员科研启动基金资助项目(No.2003-406)。 |
| |
| 摘 要： | 如何评价土结构性对天然沉积饱和土的力学性状的影响是一个非常重要的研究课题。Burland在第30届郎肯讲座论文中导入孔隙指数对各种重塑土的压缩曲线进行归一化，提出固有压缩曲线用于评价天然沉积土的压缩性状。通过对广泛沉积在日本九洲岛的有明粘性土进行试验研究，探讨了灵敏有明粘性土的特征，提出一个比Burland孔隙指数更为简单实用的评价天然沉积土力学性状的指标——归一化含水量，定义为含水量与液限之比。根据大量的试验结果，得出了天然沉积有明粘性土的Burland孔隙指数与归一化含水量的相关关系，提出了对应于归一化含水量的固有压缩曲线。
|
| 关 键 词： | 有明粘性土 固有压缩曲线 液限 归一化含水量 孔隙指数 含水量 |
| 文章编号： | 1000-7598-(2004)11-1698-04 |
| 收稿时间： | 2003-09-15 |
| 修稿时间： | 2003年9月15日 |
Relationship between void index and normalized water content for natural sedimentary Ariake clays |
| |
| HONG Zhen-shun,LIU Zhi-fang,GUO Hai-lun,LIU Song-yu.Relationship between void index and normalized water content for natural sedimentary Ariake clays[J].Rock and Soil Mechanics,2004,25(11):1698-1701. |
| |
| Authors: | HONG Zhen-shun LIU Zhi-fang GUO Hai-lun LIU Song-yu |
| |
| Institution: | Institute of Geotechnical Engineering, Southeast University, Nanjing 210096, China |
| |
| Abstract: | How to evaluate the effects of soil structure on mechanical behavior for natural sedimentary soils is an important issue in geotechnical engineering. Burland has introduced void index in the Thirtieth Rankine Lecture for normalizing the compression curves of various reconstituted soils, and proposed the intrinsic compression line for assessing the in-situ compressive behavior of natural sedimentary soils. In this study, a series of tests were performed for natural sensitive Ariake clays deposited in Japan to investigate the engineering properties. Based on the extensive experimental data, it is found that the void index proposed by Burland has an unique relationship with a simple physical index, designated as normalized water content. The normalized water content is defined as the ratio of water content to liquid limit. The intrinsic compression line (ICL) proposed by Burland is rewritten in the simple form of the normalized water content and against the applied pressure. |
| |
| Keywords: | Ariake clays intrinsic compression line liquid limit normalized water content void index water content |
| 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 |
