干旱区生态环境知识资源中心(Arid): Calculation of increased soil shear strength from desert plant roots

Arid

DOI	10.1007/s12517-019-4700-x
	Calculation of increased soil shear strength from desert plant roots
	Feng, Bo 1,2; Zong, Quanli 1; Cai, Hangbing 2; Chen, Zhikang 2; Wang, Jianxin 2
通讯作者	Zong, Quanli
来源期刊	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2019
卷号	12 期号:16
英文摘要	Tarim River is one of the most important water sources in western China, which experiences serious soil erosion. Desert plant roots of various species in the Tarim River Basin can effectively stabilize the slopes. In this study, a total of 28 soil samples were obtained including 17 samples of root-soil composites. The results of soil tests indicate that the cohesion of root-soil composites with values from 9.43 to 28.30 kPa is generally higher than that of no-root soils with values from 3.14 to 16.51 kPa. However, the roots have a minimal impact on the internal friction angle of soils. The results of single root tensile experiment indicate that the tensile strengths of root decrease with the increase of root diameter, while the tensile forces increase with it. Two models of the root and soil interaction were proposed based on the assumptions of roots rigid state and flexible state, which represent the increased maximum and minimum shear strengths, respectively. The calculated value of increased maximum and minimum shear strengths compared with the experimental results proved that the measured increased shear strengths were within the theoretical calculation range, which could provide a theoretical calculation method for evaluating the effects of desert plant roots on riverbank soil shear strength.
英文关键词	Shear strength Desert plant roots Root-soil composite Mechanical model Tarim River
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000480554600001
WOS关键词	REINFORCEMENT ; RESISTANCE ; SIMULATION ; ROCK
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214346
作者单位	1.Qingdao Agr Univ, Sch Resource & Environm, Qingdao 266109, Shandong, Peoples R China; 2.Shihezi Univ, Coll Water Conservancy & Civil Engn, Shihezi 832000, Peoples R China
推荐引用方式 GB/T 7714	Feng, Bo,Zong, Quanli,Cai, Hangbing,et al. Calculation of increased soil shear strength from desert plant roots[J],2019,12(16).
APA	Feng, Bo,Zong, Quanli,Cai, Hangbing,Chen, Zhikang,&Wang, Jianxin.(2019).Calculation of increased soil shear strength from desert plant roots.ARABIAN JOURNAL OF GEOSCIENCES,12(16).
MLA	Feng, Bo,et al."Calculation of increased soil shear strength from desert plant roots".ARABIAN JOURNAL OF GEOSCIENCES 12.16(2019).