Uplift Bearing Capacity of Squeezed Branch Pile Group

被引：2

作者：

Wang, Dehong ^{[1
,2
]}

Ju, Yanzhong ^{[1
,2
]}

Song, Mingze ^{[3
]}

Zhao, Jian ^{[1
]}

Bai, Junfeng ^{[1
,2
]}

机构：

[1] Northeast Elect Power Univ, Sch Civil Engn & Architecture, Jilin, Jilin, Peoples R China

[2] Northeast Elect Power Univ, Key Lab Elect Power Infrastruct Safety Assessment, Jilin, Jilin, Peoples R China

[3] Huizhou Power Supply Bur Guangdong Power Grid Cor, Huizhou, Peoples R China

来源：

GEOTECHNICAL AND GEOLOGICAL ENGINEERING | 2023年 / 41卷 / 01期

关键词：

Squeezed branch pile group; Uplift bearing capacity; Horizontal to uplift load ratio; Pile spacing; Field test; NUMERICAL-SIMULATION; LATERAL RESPONSE; VERTICAL LOADS; FIELD-TEST;

D O I：

10.1007/s10706-022-02279-3

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

To investigate the uplift performance of squeezed branch pile group under vertical and horizontal loads, field test of a 2 x 2 squeezed branch pile group designed according to the load of a 1000 kV ultra-high vacuum tower foundation was carried out. Parametric studies were performed by using the finite element analysis to study the influence of horizontal to uplift load ratio and pile spacing on the bearing characteristics of squeezed branch pile group. The results showed that the uplift ultimate bearing capacity of the 2 x 2 single squeezed branch pile group was increased by 60% compared to the traditional equal diameter pile group. When the pile spacing reached 4 times diameter of pile, the branch resistance and the friction resistance of the pile were fully utilized. Based on the axial force of the back row piles subjected to the following conditions, namely that of applying a single uplift load and a horizontal uplift load, a formula for calculating the adjustment coefficient of uplift capacity under horizontal load is proposed.

引用

页码：283 / 293

页数：11

共 50 条

[31] An Approach for Capacity Calculation of Shaped Pile Group Under Uplift Load
G. Q. Kong
L. D. Zhou
H. W. Gu
H. Y. Qin
Soil Mechanics and Foundation Engineering, 2018, 55 : 270 - 276
[32] An Approach for Capacity Calculation of Shaped Pile Group Under Uplift Load
Kong, G. Q.
Zhou, L. D.
Gu, H. W.
Qin, H. Y.
SOIL MECHANICS AND FOUNDATION ENGINEERING, 2018, 55 (04) : 270 - 276
[33] Research on bearing capacity of inclined uplift pile under wave cyclic loading
Fan, Shu-Li
Chen, Jian-Yun
Zhang, Jun-Qing
Yantu Lixue/Rock and Soil Mechanics, 2012, 33 (01): : 301 - 306
[34] Erratum to: Uplift Capacity of Single Bent Pile and Pile Group Considering Arching Effects in Sand
Amit Shelke
P. Basha
P. K. Basudhar
N. R. Patra
Sudib Mishra
Geotechnical and Geological Engineering, 2010, 28 (4) : 349 - 349
[35] A controlling method of the settlement-induced bearing capacity of squeezed branch piles
Pan, Ling
Xiong, Li
He, Zhijun
Li, Guowei
Zhou, Yang
Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering, 2024, 43 (10): : 2443 - 2454
[36] Analysis of the effect of the space of the bearing plate on the uplift bearing capacity of the concrete plates-expanded pile
Yong-Mei, Qian
Rong-Zheng, Zhai
Open Civil Engineering Journal, 2015, 9 (01): : 610 - 615
[37] Design method and experimental study of uplift bearing capacity of the lower enlarged composite pile
Zhou Tong-he
Gao Xin-jun
Guo Yuan-cheng
Sun Yi-bin
ROCK AND SOIL MECHANICS, 2019, 40 (10) : 3778 - +
[38] Research on the Calculating Mode of the Uplift Bearing Capacity of the Concrete Expanded-Plates Pile
Qian, Yongmei
Zhai, Rongzheng
Wang, Ruozhu
ARCHITECTURAL ENGINEERING AND NEW MATERIALS, 2015, : 240 - 247
[39] Verification of application of centrifuge model test to uplift bearing capacity problem of belled pile
Sakajo, S
Xu, L
DEFORMATION AND PROGRESSIVE FAILURE IN GEOMECHANICS - IS-NAGOYA'97, 1997, : 259 - 264
[40] Research on the Plate Cavity Geometry of the Squeezed Branch Pile
Shi Dequan
Xiao Jian
Yang Chun
Liu Baolin
2014 INTERNATIONAL (CHINA) GEOLOGICAL ENGINEERING DRILLING TECHNOLOGY CONFERENCE (IGEDTC2014), 2014, 73 : 29 - 34

← 1 2 3 4 5 →