Full Text:   <3294>

Summary:  <2511>

CLC number: TU473.1

On-line Access: 2015-12-04

Received: 2015-06-08

Revision Accepted: 2015-07-28

Crosschecked: 2015-11-25

Cited: 4

Clicked: 5526

Citations:  Bibtex RefMan EndNote GB/T7714


Jia-jin Zhou


Xiao-nan Gong


-   Go to

Article info.
Open peer comments

Journal of Zhejiang University SCIENCE A 2015 Vol.16 No.12 P.951-963


A field study on the behavior of static drill rooted nodular piles with caps under compression

Author(s):  Jia-jin Zhou, Xiao-nan Gong, Kui-hua Wang, Ri-hong Zhang

Affiliation(s):  1Research Center of Coastal and Urban Geotechnical Engineering, Zhejiang University, Hangzhou 310058, China; more

Corresponding email(s):   xngong@hzcnc.com

Key Words:  Static drill rooted method, Nodular pile, Pile cap, Cemented soil, Skin friction, Mobilized base load

Jia-jin Zhou, Xiao-nan Gong, Kui-hua Wang, Ri-hong Zhang. A field study on the behavior of static drill rooted nodular piles with caps under compression[J]. Journal of Zhejiang University Science A, 2015, 16(12): 951-963.

@article{title="A field study on the behavior of static drill rooted nodular piles with caps under compression",
author="Jia-jin Zhou, Xiao-nan Gong, Kui-hua Wang, Ri-hong Zhang",
journal="Journal of Zhejiang University Science A",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T A field study on the behavior of static drill rooted nodular piles with caps under compression
%A Jia-jin Zhou
%A Xiao-nan Gong
%A Kui-hua Wang
%A Ri-hong Zhang
%J Journal of Zhejiang University SCIENCE A
%V 16
%N 12
%P 951-963
%@ 1673-565X
%D 2015
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1500168

T1 - A field study on the behavior of static drill rooted nodular piles with caps under compression
A1 - Jia-jin Zhou
A1 - Xiao-nan Gong
A1 - Kui-hua Wang
A1 - Ri-hong Zhang
J0 - Journal of Zhejiang University Science A
VL - 16
IS - 12
SP - 951
EP - 963
%@ 1673-565X
Y1 - 2015
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1500168

The static drill rooted nodular (SDRN) pile is a new type of composite pile that consists of a precast pile and surrounding cemented soil. Its cost advantages and environmentally friendly construction have been proven in applications in Southeast China. Moreover, the composition of pipe pile and nodular pile is based on the load transfer mechanisms of a pile foundation, which is effective in optimal design. This paper presents a field study on the behavior of SDRN piles under compression. The load–displacement response, axial force, mobilized load of pile cap, skin friction, and tip resistance of the composite pile are discussed. Here, the bilinear base load–displacement model was adopted to analyze the test results. It is found that providing caps on the static drill rooted piles takes full advantage of the static drill rooted method, and drilling and grouting into the soil beneath the cap, which can be considered a type of ground improvement treatment, can increase the bearing capacity of the pile cap; thus, setting a pile cap for this type of piles is recommended. The existence of the caps in the field tests decreased the skin friction of the upper part of pile shaft because of the additional settlement of the surrounding soil, which developed owing to the pressure from the caps. The frictional capacity of the concrete–cemented soil interface was much higher than that of the cemented soil–soil interface. The skin friction of the lower part of the pile shaft was about 1.25 times in clayey soil and 2.0 times in sandy soil compared with the bored pile. It can be concluded that the cemented soil–soil interface of the SDRN pile was probably better than the concrete–soil interface of the bored pile. The test results fitted the first stage curve of the bilinear model well, and it can be supposed that the base soil was strengthened because of the permeation of the cement paste.

The manuscript is an excellent and novel mix of research design and practical engineering work.


方法:在预制桩制作过程中在桩身安置钢筋应力计 (图1),通过含有钢筋应力计的试桩的静载试验对其抗压承载性能(图7和8)、各级荷载作用下的桩身轴力(图9和10)、承台承载性能(图11和12)、桩侧摩擦性能(图18)以及桩端承载性能(图19和20)进行分析与研究。
结论:1. 静钻根植工法通过搅拌注浆能够改善承台下部土体性质,在静钻根植桩中设置承台能充分发挥静钻根植工法的优势,在该种桩基中设置承台比较合适;2. 承台的存在使桩周土体产生沉降,使得试桩上部桩土相对位移较小,从而使试桩上部桩侧摩阻力减小,试桩下部土体所提供的侧摩阻力相比灌注桩都有所提高;在粘性土中试桩桩侧摩阻力值为灌注桩的1.25倍,在砂性土中达到2倍,说明试桩中水泥土-土体接触面摩擦性能优于灌注桩混凝土-桩周土体接触面的摩擦性能,且在砂性土中提高程度更大;试桩桩端荷载位移曲线基本呈线性,与双折线模型相似;由于有水泥土的渗入,桩端土的强度得到提高,使桩端承载性能也得到提高。


Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


[1]Borda, O., Uno, M., Towhata, I., 2007. Shaft capacity of nodular piles in loose sand. Proceedings of the 49th National Conference, Japanese Geotechnical Society, Japan, 2: 1175-1176 (in Japanese).

[2]Butterfield, R., Banerjee, P.K., 1971. The problem of pile group-pile cap interaction. Géotechnique, 21(2):135-142.

[3]Chow, Y.K., Teh, C.I., 1991. Pile-cap–pile-group interaction in non-homogeneous soil. Journal of Geotechnical Engineering, 117(11):1655-1668.

[4]Cooke, R.W., 1986. Piled raft foundations on stiff clays—a contribution to design philosophy. Géotechnique, 36(2):169-203.

[5]Horiguchi, T., Karkee, M.B., 1995. Load tests on bored PHC nodular piles in different ground conditions and the bearing capacity based on simple soil parameters. Proceedings of Technical Report of Japanese Architectural Society, 1:89-94 (in Japanese).

[6]Karkee, M.B., Kanai, S., Horiguchi, T., 1998. Quality assurance in bored PHC nodular piles through control of design capacity based on loading test data. Proceeding of the 7th International Conference and Exhibition, Piling and Deep Foundations, Vienna, Austria, p.1-9.

[7]Karkee, M.B., Horiguchi, T., Kishida, H., 1999. Limit state formulation for the vertical resistance of bored PHC nodular piles based on field load test results. 11th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, Kluwer Academic Publishers, Seoul, p.237-240.

[8]Lee, S.H., Chung, C.K., 2005. An experimental study of the interaction of vertically loaded pile groups in sand. Canadian Geotechnical Journal, 42(5):1485-1493.

[9]Liu, H.L., Ren, L.W., Zheng, H., et al., 2010. Experimental research on load transfer behaviors of single jet grouting soil-cement-pile strengthened pile with cap. Chinese Journal of Rock Mechanics and Engineering, 31(5):1395-1401 (in Chinese).

[10]MOHURD (Ministry of Housing and Urban-Rural Development of the People’s Republic of China), 2003. Technical Code for Testing of Building Foundation Piles, JGJ106-2003. China Architecture and Building Press, Beijing (in Chinese).

[11]Prakoso, W., Kulhawy, F.H., 2001. Contribution to piled raft foundation design. Journal of Geotechnical and Geoenvironmental Engineering, 127(1):17-24.

[12]Randolph, M.F., Wroth, C.P., 1978. Analysis of deformation of vertically loaded pile. Journal of the Geotechnical Engineering Division, 104(12):1465-1488.

[13]Yabuuchi, S., 1994. Bearing mechanisms of muti-node piles. Proceedings of the International Offshore and Polar Engineering Conference, Osaka, Japan, p.504-507.

[14]Zhang, H.H., Small, J.C., 2000. Analysis of capped pile groups subjected to horizontal and vertical loads. Computers and Geotechnics, 26(1):1-21.

[15]Zhang, Q.Q., Zhang, Z.M., 2012. A simplified calculation approach for settlement of single pile and pile groups. Journal of Computing in Civil Engineering, 26(6):750-758.

[16]Zhou, J.J., Wang, K.H., Gong, X.N., et al., 2013. Bearing capacity and load transfer mechanism of a static drill rooted nodular pile in soft soil areas. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 14(10):705-719.

Open peer comments: Debate/Discuss/Question/Opinion


Please provide your name, email address and a comment

Journal of Zhejiang University-SCIENCE, 38 Zheda Road, Hangzhou 310027, China
Tel: +86-571-87952783; E-mail: cjzhang@zju.edu.cn
Copyright © 2000 - 2024 Journal of Zhejiang University-SCIENCE