IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2016  > Vol13 No.8
Shear strength features of soils developed from purple clay rock and containing less than two-millimeter rock fragments
ZHONG Shou-qin; ZHONG Mang; WEI Chao-fu; ZHANG Wei-hua; HU Fei-nan
Corresponding AuthorWEI Chao-fu
2016-08
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume13Issue:8Pages:1464-1480
Subtype期刊论文
AbstractSoil shear strength is an important indicator of engineering design and an essential parameter of soil precision tillage and agricultural machinery and equipment design. Although numerous studies have investigated the characteristics of different soil shear strengths, only a few of these works have paid attention to soils containing considerable quantities of rock fragments. To date, most studies on the effects of rock fragments on the shear strength have paid attention to the role of rock fragments with sizes >2 mm. The effects of rock fragments <2 mm in soil are generally ignored. Similar to rock fragments >2 mm, the presence of rock fragments <2 mmcould also change the mechanical properties of soils. Thus, in the present study we evaluated the potential influence of <2 mm rock fragments on soil shear strength via an unconsolidated undrained (UU) triaxial compression test. Our results were as follows: (1) A certain quantity of <2 mm rock fragmentspresented in purple soils developed from clay rocks; and an appropriate quantity of <2 mm rock fragments could improve the shear strength of soils. (2) The different PSDs of soils containing <2 mm rock fragments mainly caused variations in the internal friction angle of soils. (3) The shear strengths of the two mudstone-developed red-brown and gray-brown purple soils was more sensitive to water than that of the shale-developed coarse-dark purple soil. As the soil water content increased from 9% to 23%, the changes in the cohesion, internal friction angle, shear strength, and the maximum principal stress difference were smaller in the coarse dark purple soil than in the two other soils. We therefore concluded that <2 mm rock fragments in purple soils exerted important effects on soil shear strength. A better understanding of the differences among the shear strength features of purple soils could help improve the design of agricultural machinery and equipment.
KeywordShear Strength Purple Soils Rock Fragments Particle Size Distribution (Psd) Soil Water Content Triaxial Test
DOI10.1007/s11629-015-3524-8
Indexed BySCI
Language英语
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/17447
CollectionJournal of Mountain Science_Journal of Mountain Science-2016_Vol13 No.8
Recommended Citation
GB/T 7714
ZHONG Shou-qin,ZHONG Mang,WEI Chao-fu,et al. Shear strength features of soils developed from purple clay rock and containing less than two-millimeter rock fragments[J]. Journal of Mountain Science,2016,13(8):1464-1480.
APA ZHONG Shou-qin,ZHONG Mang,WEI Chao-fu,ZHANG Wei-hua,&HU Fei-nan.(2016).Shear strength features of soils developed from purple clay rock and containing less than two-millimeter rock fragments.Journal of Mountain Science,13(8),1464-1480.
MLA ZHONG Shou-qin,et al."Shear strength features of soils developed from purple clay rock and containing less than two-millimeter rock fragments".Journal of Mountain Science 13.8(2016):1464-1480.
Files in This Item:
File Name/Size DocType Version Access License
12.pdf(1171KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[ZHONG Shou-qin]'s Articles
[ZHONG Mang]'s Articles
[WEI Chao-fu]'s Articles
Baidu academic
Similar articles in Baidu academic
[ZHONG Shou-qin]'s Articles
[ZHONG Mang]'s Articles
[WEI Chao-fu]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[ZHONG Shou-qin]'s Articles
[ZHONG Mang]'s Articles
[WEI Chao-fu]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 12.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.