Bearing Mechanism and Calculation Method of Screw Pile

doi:10.16183/j.cnki.jsjtu.2010.06.002

Abstract

Abstract:

The vertical bearing mechanism of screw piles was studied by the model test and numerical analysis. The results of the analysis show that the bearing capacity of the screw piles depends on the soil shear strength and a shear zone along the pile will take place in the surrounding soil under ultimate load. Parameter analysis was presented including the pile-soil interface properties, the soil shear strength, and the design parameters of the screw pile. The parameter study indicates that the key factors influence the vertical bearing capacity of screw piles are the soil shear strength, the screw pitch and the width of screw. A calculation method was obtained based on the field test and numerical results.

Key words: screw pile, vertical bearing capacity, model test, numerical analysis, shear strength

CLC Number:

TU473

LI Cheng-wei, CHEN Jin-jian, WU Qiong, XIA Xiao-he, WANG Jian-hua. Bearing Mechanism and Calculation Method of Screw Pile[J]. Journal of Shanghai Jiao Tong University, 2010, 44(06): 726-730.

Figures/Tables 10

Fig. 1

Fig. 2

Tab. 1

Fig. 3

Fig. 4

Tab. 2

Fig. 5

Fig. 6

Fig. 7

Fig. 8

References 6

[1]	蒋建平, 高广运, 顾宝和.扩底桩、楔形桩、等直径桩对比试验研究[J]. 岩土工程学报, 2003, 25(6): 764-766.
	JIANG Jian-ping, GAO Guang-yun, GU Bao-he. Comparison of belled pile, tapered pile and equal-diameter pile[J]. Chinese Journal of Geotechnical Engineering, 2003, 25(6): 764-766.
[2]	钱德玲.挤扩支盘桩受力性状的研究[J]. 岩石力学与工程学报, 2003, 22(3): 494-499.
	QIAN De-ling. Study on bearing behavior of squeezed branch pile[J]. Chinese Journal of Rock Mechanics and Engineering, 2003, 22(3): 494-499.
[3]	李波扬, 吴敏.灌注螺纹桩成桩工艺[P]. 中国专利: ZL96119602.5, 1997-06-25.
[4]	吴敏, 李波扬.全螺旋灌注桩-螺纹桩竖向承载力初探[J]. 武汉大学学报(工学版), 2002, 35(5): 109-112.
	WU Min, LI Bo-yang. Primary discussion on vertical load bearing capacity of screwed filling piles[J]. Engineering Journal of Wuhan University, 2002, 35(5): 109-112.
[5]	李红文, 李雪梅, 郑俊杰, 等.螺纹桩的设计及应用[J]. 土工基础, 2006, 20(2): 82-85.
	LI Hong-wen, LI Xue-mei, ZHENG Jun-jie, et al. The design and application of screw pile[J]. Soil Engineering and Foundation, 2006, 20(2): 82-85.
[6]	孙文怀, 张元冬, 魏厚峰, 等.螺纹桩在软弱地层中的应用[J]. 华北水利水电学院学报, 2009, 30(3): 74-76.
	SUN Wen-huai, ZHANG Yuan-dong, WEI Hou-feng, et al. Application of screw pile in weak strata[J]. Journal of North China Institute of Water Conservancy and Hydroelectric Power, 2009, 30(3): 74-76.

材料	E/MPa	υ	c/kPa	φ/(°)
砂土	6	0.4	5	15
桩体	2 000	0.2	?	?

材料	E/MPa	υ	c/kPa	φ/(°)
上层土	25	0.3	15	22
下层土	60	0.3	10	25
桩体	3×10⁴	0.2	?	?

[1]	XIE Yi, ZHU Wenxuan, XIONG Yonglin, YE Guanlin. Numerical Analyses of Seismic Reponses of Unsaturated Slopes from Cuttings and Embankments [J]. Journal of Shanghai Jiao Tong University, 2026, 60(3): 473-485.
[2]	ZHAO Xuan, ZHAO Qi, ZHANG Daxu, ZHANG Peifu. Effects of Polymer Matrices on Interlaminar Shear Strength of GFRP Rebars in Seawater Sea-Sand Concrete Environment [J]. Journal of Shanghai Jiao Tong University, 2026, 60(3): 452-462.
[3]	PENG Shennan, YANG Jian, WANG Xing’er, LU Mincheng, ZHU Yuhan. Influence and Mechanism of Crack Morphology on Post-Fracture Stiffening Effect of SG-laminated Glass [J]. Journal of Shanghai Jiao Tong University, 2025, 59(8): 1123-1132.
[4]	ZHAO Guangyi, ZHANG Mengmeng, FU Shixiao, XU Yuwang, REN Haojie, BAI Yingli. Experimental Study on Vortex-Induced Vibration Force Characteristics of Side-by-Side Double Free-Hanging Water Transmission Pipes Under Uniform Flow [J]. Journal of Shanghai Jiao Tong University, 2025, 59(8): 1067-1080.
[5]	CHEN Pengyu, ZHU Yiming, XIE Xiaomin. Simulation and Experimental Study on Yawing Motion Characteristic for Single-Anchor Mooring Ships [J]. Ocean Engineering Equipment and Technology, 2025, 12(3): 87-93.
[6]	WANG Boyu, HU Zhiping, ZHANG Yonghui, YIN Ke, MA Jiakuan. Analytical Solution for Vertical Vibration Response of Screw Piles Considering Three-Dimensional Wave Effect in Soil [J]. Journal of Shanghai Jiao Tong University, 2025, 59(12): 1855-1865.
[7]	ZHENG Mao, DING Shigan, LAN Jiafen. Maneuvering Motion Modeling of Unconventional Ship Based on Numerical Calculation [J]. Journal of Shanghai Jiao Tong University, 2025, 59(12): 1824-1836.
[8]	SONG Junlin, LIU Bo, TANG Liheng, LIAO Chencong. Centrifuge Tests on Vertical Bearing Capacity of Jacket Pile Foundation in Clay Seabed Under Different Grouting Effects [J]. Journal of Shanghai Jiao Tong University, 2025, 59(1): 38-47.
[9]	LIU Shuxiang1, DING Yong1, WANG Yilin2, LI Sa2. Testing Study on Horizontal Capacity Characteristics of Jack-Ups [J]. Ocean Engineering Equipment and Technology, 2025, 12(1): 74-78.
[10]	LI Xu, XIAO Longfei, WEI Handi, WU Wencheng, ZHU Ziyang, LI Yan. Inverse Reconstruction of Environmental Loads and Virtual Model Test [J]. Journal of Shanghai Jiao Tong University, 2024, 58(2): 141-146.
[11]	LIU Dongxi, MA Renjie, CAI Wenjuan, LU Tianze. Experimental Study of Three-Dimensional Swirling Sloshing of Free Surface in Vertical Cylindrical Tank [J]. Journal of Shanghai Jiao Tong University, 2024, 58(11): 1665-1673.
[12]	SHANG Xianling, LI Chunlei, WANG Leqin, FAN Zeren, HAN Yunrui, YU Long. Numerical Analysis of J-Lay on a Nonlinear Seabed [J]. Ocean Engineering Equipment and Technology, 2024, 11(1): 99-105.
[13]	ZHOU Dongrong, ZHANG Jiaming, ZHUANG Qianwei, HUANG Xin, ZHAI Yixin, ZHU Xiaodong, ZHANG Chi, ZHANG Zixin. CEL Numerical Analysis of Disturbance of Constructing Curved Beam Based on “Yangtze River Estuary II” Ancient Wreck [J]. Journal of Shanghai Jiao Tong University, 2023, 57(S1): 60-68.
[14]	YAO Rulin, FAN Qidong, YU Long, WANG Xuefeng. Numerical and Testing Analysis of Fin Stabilizers of A Medium Sized Cruise Ship with Overset Grids [J]. Journal of Shanghai Jiao Tong University, 2023, 57(S1): 178-184.
[15]	YAN Yuanzhong, ZHANG Qi, YE Guanlin, SUN Bo, LIU Guojun. Vertical Bearing Characteristics of Mat Foundation on Horizontal and Sloping Clay Seabed [J]. Journal of Shanghai Jiao Tong University, 2023, 57(6): 700-708.