| Laboratory Investigation of the Effect of Initial Dry Density and Grain Size Distribution on Soil–Water Characteristic Curves of Wide-Grading Gravelly Soil | |
Chen Xiaoqing1 ; Hu Kai1,2; Chen Jiangang1; Zhao Wanyu1
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| 2018 | |
| Source Publication | Geotechnical and Geological Engineering
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| ISSN | 0960-3182 |
| EISSN | 1573-1529 |
| Volume | 36Issue:2Pages:885-896 |
| Subtype | Article |
| Contribution Rank | 1 |
| Abstract | Wide-grading gravelly soils are often encountered in debris flow source areas. To perform stability analyses under rainfall conditions the soil–water characteristic curves (SWCC) are significant. However the studies for SWCC of wide-grading gravelly soils are rare. In order to investigate the effects of initial dry density and grain size distribution on the SWCCs of wide-grading gravelly a large-scale osmotic column allowing the measurement of both volumetric water content and matric suction at various levels was fabricated for a series of osmotic column tests. The test data were best-fitted to Van Genuchten equation using a least-squares algorithm and found that both the initial dry density and grain size distribution had a greater effect on the SWCCs. An increase in the initial dry density resulted in an increase in water retention capacity. The air entry value and residual volumetric water content increased linearly with increases in the initial dry density whereas the maximum slope of SWCC decreased linearly with increases in the initial dry density. The air entry value and residual volumetric water content increased linearly with increases in the fine content (particle diameter 10. © 2017 Springer International Publishing AG. |
| Keyword | Soil–water characteristic curves Widegrading gravelly soil Initial dry density Grain size distribution |
| DOI | 10.1007/s10706-017-0362-1 |
| Indexed By | EI |
| Language | 英语 |
| EI Accession Number | Accession number:20173704145034 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/25554 |
| Collection | 山地灾害与地表过程重点实验室 |
| Corresponding Author | Hu Kai |
| Affiliation | 1.CAS Key Laboratory of Mountain Hazards and Surface Processes Institute of Mountain Hazards and Environment Chinese Academy of Sciences #9 Block 4 Renminnanlu Road Chengdu ;610041 China ; 2.University of Chinese Academy of Sciences Beijing ;100049 China |
| Recommended Citation GB/T 7714 | Chen Xiaoqing,Hu Kai,Chen Jiangang,等. Laboratory Investigation of the Effect of Initial Dry Density and Grain Size Distribution on Soil–Water Characteristic Curves of Wide-Grading Gravelly Soil[J]. Geotechnical and Geological Engineering,2018,36(2):885-896. |
| APA | Chen Xiaoqing,Hu Kai,Chen Jiangang,&Zhao Wanyu.(2018).Laboratory Investigation of the Effect of Initial Dry Density and Grain Size Distribution on Soil–Water Characteristic Curves of Wide-Grading Gravelly Soil.Geotechnical and Geological Engineering,36(2),885-896. |
| MLA | Chen Xiaoqing,et al."Laboratory Investigation of the Effect of Initial Dry Density and Grain Size Distribution on Soil–Water Characteristic Curves of Wide-Grading Gravelly Soil".Geotechnical and Geological Engineering 36.2(2018):885-896. |
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| File Name/Size | DocType | Version | Access | License | ||
| Laboratory Investiga（1097KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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