干旱区生态环境知识资源中心(Arid): Full-scale tests of steel grillage foundation in aeolian sand areas

Arid

DOI	10.16285/j.rsm.2021.0317
	Full-scale tests of steel grillage foundation in aeolian sand areas
	Heng, Feng; Gao Fei-lue; Liu Guan-shi; Gao Bin; Xiao Fei; Zeng Er-xian
通讯作者	Liu, GS (corresponding author), Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China.
来源期刊	ROCK AND SOIL MECHANICS
ISSN	1000-7598
出版年	2021
卷号	42 期号:12 页码:3328-3334
英文摘要	More and more transmission lines pass through the desert area covered by aeolian sand, and steel grillage foundation has good applicability, but there are few field tests at present. In Yulin area of Shaanxi Province, southern edge of Maowusu sandy land, several groups of full-scale uplift tests of steel grillage foundation in aeolian sand ground were carried out, and the uplift bearing capacity, uplift and surface displacement, support and floor stress, upper earth pressure and other parameters were tested and analyzed. The results show that the uplift load-displacement curve of the steel grilage foundation is similar to that of the spread foundation, which can be divided into the approximate straight section, plastic transition section and linear instability section. When the cumulative uplift displacement reaches 21-23 mm, the foundation comes to the limit state. If small cracks appear on the ground surface around the top of the foundation during loading and propagate along the diagonal direction, the foundation will enter the limit state under the next level load. By analyzing the variation characteristics of the earth pressure on the upper part of the foundation, the fracture point on the uplift fracture surface of the foundation can be found, and the actual uplift angle can be calculated. The uplift bearing capacity calculated by the soil weight method in the existing codes is larger than the test value of ultimate uplift bearing capacity. It is suggested that the uplift angle should be 19.0 degrees to 19.5 degrees in the foundation design of relevant areas.
英文关键词	aeolian sand steel grillage foundation full-scale test uplift ultimate bearing capacity
类型	Article
语种	中文
收录类别	ESCI
WOS记录号	WOS:000731904200012
WOS关键词	ASSEMBLY FOUNDATION ; TRANSMISSION-LINE ; UPLIFT BEHAVIOR
WOS类目	Engineering, Geological
WOS研究方向	Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374366
作者单位	[Heng, Feng; Gao Fei-lue; Gao Bin; Zeng Er-xian] Zhongnan Elect Power Design Inst Co Ltd, China Power Engn Consulting Grp, Wuhan 430071, Hubei, Peoples R China; [Liu Guan-shi; Xiao Fei] Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Heng, Feng,Gao Fei-lue,Liu Guan-shi,et al. Full-scale tests of steel grillage foundation in aeolian sand areas[J],2021,42(12):3328-3334.
APA	Heng, Feng,Gao Fei-lue,Liu Guan-shi,Gao Bin,Xiao Fei,&Zeng Er-xian.(2021).Full-scale tests of steel grillage foundation in aeolian sand areas.ROCK AND SOIL MECHANICS,42(12),3328-3334.
MLA	Heng, Feng,et al."Full-scale tests of steel grillage foundation in aeolian sand areas".ROCK AND SOIL MECHANICS 42.12(2021):3328-3334.