Engineering geological characterization of clayey diatomaceous earth deposits encountered in highway projects in the Tengchong region, Yunnan, China
文献类型：期刊论文
| 作者 | Zhang, Yongshuang1,2; Guo, Changbao1,2; Yao, Xin1,2; Qu, Yongxin3; Zhou, Nengjuan1,2 |
| 刊名 | ENGINEERING GEOLOGY
 |
| 出版日期 | 2013-12-17 |
| 卷号 | 167页码:95-104 |
| 关键词 | Diatomaceous earth Clay mineral Swelling Mechanical property Geohazard |
| ISSN号 | 0013-7952 |
| DOI | 10.1016/j.enggeo.2013.10.009 |
| 文献子类 | Article |
| 英文摘要 | A type of clayey diatomaceous earth of Pliocene Mangbang Formation (N(2)m) was encountered in highway projects in the Tengchong region of Yunnan Province, Southwest China. The Tengchong clayey diatomaceous earth is characterized using multiple test methods, such as granulometric analysis, chemical analysis. X-ray diffraction (XRD) and scanning electron microscopy (SEM) analysis, shrinkage and swelling tests, unconfined or uniaxial compression test, triaxial test and direct shear tests. The chemical and mineralogical compositions, physical and hydraulic properties and engineering properties of the clayey diatomaceous earth are presented in this paper. It is revealed that the Tengchong clayey diatomaceous earth is an unusual soil or rock which has characteristics of both typical diatomaceous earth and swelling clayey soil or soft clay rock. The diatoms in the earth enhance the connection between micro-structures, and improve the mechanical properties of diatomaceous earth. However, due to the existence of a significant amount of swelling clay minerals, the Tengchong clayey diatomaceous earth becomes swelling soft rock, and is prone to engineering problems or geohazards. Based on the test results, a number of issues regarding classification, discrimination and geohazard control related with the clayey diatomaceous earth are discussed to provide both some basic understanding and new insight into the characteristics of the clayey diatomaceous earth deposits. (C) 2013 Elsevier By. All rights reserved. |
| WOS关键词 | MICROFOSSILS ; SEDIMENTS ; DIAGENESIS ; BEHAVIOR ; JAPAN |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000328239500010 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | Project of Science and Technology Development Plan of Railway Ministry of China(2008G027-B) ; Project of Science and Technology Development Plan of Railway Ministry of China(2008G027-B) ; Fundamental Research Fund of Institute of Geomechanics(DZLXJK201206) ; Fundamental Research Fund of Institute of Geomechanics(DZLXJK201206) ; Project of the 12th Five-year National Sci-Tech Support Plan of China(2011BAK12B09) ; Project of the 12th Five-year National Sci-Tech Support Plan of China(2011BAK12B09) ; Project of Science and Technology Development Plan of Railway Ministry of China(2008G027-B) ; Project of Science and Technology Development Plan of Railway Ministry of China(2008G027-B) ; Fundamental Research Fund of Institute of Geomechanics(DZLXJK201206) ; Fundamental Research Fund of Institute of Geomechanics(DZLXJK201206) ; Project of the 12th Five-year National Sci-Tech Support Plan of China(2011BAK12B09) ; Project of the 12th Five-year National Sci-Tech Support Plan of China(2011BAK12B09) ; Project of Science and Technology Development Plan of Railway Ministry of China(2008G027-B) ; Project of Science and Technology Development Plan of Railway Ministry of China(2008G027-B) ; Fundamental Research Fund of Institute of Geomechanics(DZLXJK201206) ; Fundamental Research Fund of Institute of Geomechanics(DZLXJK201206) ; Project of the 12th Five-year National Sci-Tech Support Plan of China(2011BAK12B09) ; Project of the 12th Five-year National Sci-Tech Support Plan of China(2011BAK12B09) ; Project of Science and Technology Development Plan of Railway Ministry of China(2008G027-B) ; Project of Science and Technology Development Plan of Railway Ministry of China(2008G027-B) ; Fundamental Research Fund of Institute of Geomechanics(DZLXJK201206) ; Fundamental Research Fund of Institute of Geomechanics(DZLXJK201206) ; Project of the 12th Five-year National Sci-Tech Support Plan of China(2011BAK12B09) ; Project of the 12th Five-year National Sci-Tech Support Plan of China(2011BAK12B09) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/86582]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhang, Yongshuang |
| 作者单位 | 1.Minist Land & Resources, Key Lab Neotecton Movement & Geohazard, Beijing 100081, Peoples R China 2.Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Yongshuang,Guo, Changbao,Yao, Xin,et al. Engineering geological characterization of clayey diatomaceous earth deposits encountered in highway projects in the Tengchong region, Yunnan, China[J]. ENGINEERING GEOLOGY,2013,167:95-104. |
| APA | Zhang, Yongshuang,Guo, Changbao,Yao, Xin,Qu, Yongxin,&Zhou, Nengjuan.(2013).Engineering geological characterization of clayey diatomaceous earth deposits encountered in highway projects in the Tengchong region, Yunnan, China.ENGINEERING GEOLOGY,167,95-104. |
| MLA | Zhang, Yongshuang,et al."Engineering geological characterization of clayey diatomaceous earth deposits encountered in highway projects in the Tengchong region, Yunnan, China".ENGINEERING GEOLOGY 167(2013):95-104. |
入库方式： OAI收割
来源：地质与地球物理研究所
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