Anti-pulling force and displacement deformation analysis of the anchor pulling system of the new debris flow grille dam

doi:10.1038/s41598-022-07722-2

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Anti-pulling force and displacement deformation analysis of the anchor pulling system of the new debris flow grille dam
	Wang, Yongsheng 1,2; Lv, Baohong 1,2; Liu, Jianshe 1,2; Zhang, Xiaobin 1,2
刊名	SCIENTIFIC REPORTS
	2022-03-08
卷号	12 期号:1
ISSN号	2045-2322
DOI	10.1038/s41598-022-07722-2
英文摘要	To avoid waste from a large section space structure layout and deep burial, improve the structural strength and stability. Anchor technology is introduced, and combined with the advantages of the supporting wall, a new debris-flow grille dam is proposed. Starting from the force process and damage mechanism of the new debris-flow grille dam, the computation formula for the anti-pulling force and the total displacement is given. The anti-pulling force includes the sidewall frictional resistance of the anchor pier and the positive pressure of the front end face of the anchor pier. The total displacement includes three parts: the elastic deformation of the cable, the relative shear displacement between the anchor pier and the surrounding soil, and the compression deformation of the soil at the front of the anchor pier. Finally, the influence of soil parameters and anchor pier size on the anti-pulling force and displacement deformation of the anchor-pulling system is analyzed by examples, and the results are compared with the numerical results. The results show that the displacement deformation decreases gradually with increasing elastic modulus of the soil around the anchor pier and increases with increasing Poisson's ratio. The change in elastic modulus mainly affects the relative shear displacement of the anchor pier and soil and the compressive deformation of the soil at the front end of the anchor pier. Poisson's ratio has the greatest influence on the relative shear displacement of the anchor pier and soil. A larger anchor pier is not better; thus, it is wise to choose the economic design dimension. Theoretical and numerical simulation results are consistent, showing a linear growth trend. The results of this paper can further improve the theoretical calculation method of the new debris-flow grille dam, thus making it widely used in more debris flow control projects.
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATURE PORTFOLIO
WOS记录号	WOS:000826474600077
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/159794]
专题	土木工程学院
作者单位	1.Lanzhou Univ Technol, Key Lab Disaster Prevent & Mitigat Civil Engn Gan, Lanzhou 730050, Gansu, Peoples R China 2.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730050, Peoples R China;
推荐引用方式 GB/T 7714	Wang, Yongsheng,Lv, Baohong,Liu, Jianshe,et al. Anti-pulling force and displacement deformation analysis of the anchor pulling system of the new debris flow grille dam[J]. SCIENTIFIC REPORTS,2022,12(1).
APA	Wang, Yongsheng,Lv, Baohong,Liu, Jianshe,&Zhang, Xiaobin.(2022).Anti-pulling force and displacement deformation analysis of the anchor pulling system of the new debris flow grille dam.SCIENTIFIC REPORTS,12(1).
MLA	Wang, Yongsheng,et al."Anti-pulling force and displacement deformation analysis of the anchor pulling system of the new debris flow grille dam".SCIENTIFIC REPORTS 12.1(2022).