| 甘肃永登湿陷性新近堆积黄土的微观结构分析 |
| |
| 引用本文： | 邓津,王兰民,张振中,袁中夏.甘肃永登湿陷性新近堆积黄土的微观结构分析[J].西北地震学报,2005,27(3):267-271. |
| |
| 作者姓名： | 邓津 王兰民 张振中 袁中夏 |
| |
| 作者单位： | 中国地震局兰州地震研究所 甘肃兰州730000
(邓津，王兰民，张振中)，中国地震局兰州地震研究所 甘肃兰州730000(袁中夏) |
| |
| 基金项目： | 国家自然基金项目资助(50379049)，中国地震局兰州地震研究所论著编号:LC20050050 |
| |
| 摘 要： | 甘肃永登县树屏村某工程场地土为第四纪新近堆积黄土,其工程性质较为特殊,具有较大的湿陷性,但在天然湿度下震陷性却很小。本文利用扫描显微镜对其微结构图象进行分析,同时结合土工试验结果,揭示了导致其特殊工程性质的微观机理。最后提出了在工程施工中应注意的问题。
|
| 关 键 词： | 关键词:新近堆积黄土 微结构 震陷 湿陷 |
| 文章编号： | 1000-0844(2005)03-0267-05 |
| 收稿时间： | 12 20 2004 12:00AM |
| 修稿时间： | 2004年12月20 |
Analysis on Microstructure of the Recently Cumulated Collapsible Loess in Yongdeng County, Gansu Province |
| |
| DENG Jin,WANG Lan-min,ZHANG Zhen-zhong and YUAN Zhong-xia.Analysis on Microstructure of the Recently Cumulated Collapsible Loess in Yongdeng County, Gansu Province[J].Northwestern Seismological Journal,2005,27(3):267-271. |
| |
| Authors: | DENG Jin WANG Lan-min ZHANG Zhen-zhong and YUAN Zhong-xia |
| |
| Institution: | Lunzhou Institute of Seismology, CEA, lanzhou 730000,China |
| |
| Abstract: | It is found that the recently accumulated loess in one site at Shuping village,Yongdeng country,Gansuprovince,has special engineering behaviors.It has larger water collapsibility but only smaller seismic subsidence in natural humidity.Based on the analysis of microstructure images by means of scanning electron microscopy and experimental results of its physical parameters,the micro-mechanism of causing the special engineering behaviors is revealed.Some suggestions for construction on this kind site soil are presented. |
| |
| Keywords: | Recently accumulated loess Microstructure Seismic subsidence Water collapsibility |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《西北地震学报》浏览原始摘要信息 |
| 点击此处可从《西北地震学报》下载免费的PDF全文 |
