Pile-soil interaction mechanism and bearing characteristics of roots in uplift process of piles

doi:10.11779/CJGE2021S1009

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	Pile-soil interaction mechanism and bearing characteristics of roots in uplift process of piles
	Zhang, Ji-Lu 3; Huang, Xue-Feng 1,3; Zhou, Jun-Peng 4; Wei, Lin-Hui 3; Yuan, Jun 2; Wang, Xue-Ming 2
刊名	Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering
	2021-07-01
卷号	43 页码:47-52
关键词	Bearing capacity Failure (mechanical) Geotechnical engineering Soils Bearing characteristic Different densities Exponential distributions Load transfer model Numerical stimulations Pile soil interaction Uplift bearing capacity Variable cross section
ISSN号	10004548
DOI	10.11779/CJGE2021S1009
英文摘要	In order to clarify the load transfer model for root piles and the action law of pile-soil, the uplift bearing capacities of equal section pile, belled pile and root pile are tested. Meantime, the change rules of the bearing capacity under different densities of root are explored through numerical stimulation. The result shows that: (1) The root pile is more suitable under the conditions of complex load and strict requirements for displacement. Moreover, the multi-layer variable cross-section setting of the root pile makes the bearing capacity of material, play a further role and achieves the goal of economic saving. (2) In the test condition, the relationship between the crack rate of soil around piles and the load is exponential distribution. Under the same load, the higher the fissure rate, the lower the bearing capacity. Under the ultimate load, the higher the fissure rate, the more fully the bearing capacity of soil will be exerted. (3) Increasing the density of roots (cross-section area) is beneficial to reducing the earth pressure around the roots and preventing the plastic failure from happening in the original period of the foundation. In generally, the ratio of the roots to the branch cross-section area with the same diameter should be set from 0.1 to 0.3. © 2021, Editorial Office of Chinese Journal of Geotechnical Engineering. All right reserved.
语种	中文
出版者	Chinese Society of Civil Engineering
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/151125]
专题	兰州理工大学
作者单位	1.School of Civil Engineering, Chongqing Jiaotong University, Chongqing; 400074, China; 2.Northwest Electric Power Design Institute Co., Ltd. of China Power Engineering Consulting Group, Xi'an; 710075, China 3.School of Civil Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 4.Department of Military Installations Engineering, Army Logistical University of PLA, Chongqing; 401311, China;
推荐引用方式 GB/T 7714	Zhang, Ji-Lu,Huang, Xue-Feng,Zhou, Jun-Peng,et al. Pile-soil interaction mechanism and bearing characteristics of roots in uplift process of piles[J]. Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering,2021,43:47-52.
APA	Zhang, Ji-Lu,Huang, Xue-Feng,Zhou, Jun-Peng,Wei, Lin-Hui,Yuan, Jun,&Wang, Xue-Ming.(2021).Pile-soil interaction mechanism and bearing characteristics of roots in uplift process of piles.Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering,43,47-52.
MLA	Zhang, Ji-Lu,et al."Pile-soil interaction mechanism and bearing characteristics of roots in uplift process of piles".Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering 43(2021):47-52.