FIELD FULL-SCALE TEST STUDY ON TENSION BEARING MECHANISM OF DX PILES CAST-IN-SITU

Chen Lun; Jiang Li; Wang Haiyan; He Dexin; Sun Junping

doi:10.13204/j.gyjz200410010

Volume 34 Issue 10

Dec. 2014

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YU Feng, CHEN Hao, YAO Chi, QIN Yin, FANG Yuan, BU Shuangshuang. Numerical Analysis of Moment-Curvature Relations on Self-Stressing Steel-Slag- Concrete-Filled Steel Tube Columns Under Quasi-Static Loading[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(1): 160-168,188. doi: 10.13204/j.gyjzG22012912

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Chen Lun, Jiang Li, Wang Haiyan, He Dexin, Sun Junping. FIELD FULL-SCALE TEST STUDY ON TENSION BEARING MECHANISM OF DX PILES CAST-IN-SITU[J]. INDUSTRIAL CONSTRUCTION, 2004, 34(10): 33-35,46. doi: 10.13204/j.gyjz200410010

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FIELD FULL-SCALE TEST STUDY ON TENSION BEARING MECHANISM OF DX PILES CAST-IN-SITU

doi: 10.13204/j.gyjz200410010

1.
1. Department of Hydraulic Engineering,Tsinghua University Beijing 100084;
2.
2. Beijing Zhongkuo Foundation Co.,Ltd. Beijing 100083

Received Date: 2004-03-20
Publish Date: 2004-10-20

Abstract

Abstract

Based on a series of loading tests of ful-l scale model DX piles cas-t in- situ, the bearing behaviour and loadtransferring mechanism of tension DX piles are studied. The results show that the tension bearing capacity of DX pile is apparently higher than that of the pile with constant section, and the curve of load-displacement of DX pile is slowly varying. The enlarged disks bear the most of all tension bearing capacity. It is found that the unit frictional resistances of DX pile is also higher than that of the pile with constant section because of squeezed efficiency of disk. Then, the lateral resistance of tension DX pile, tension pile and compression pile with constant sections are compared. The difference of lateral resistance under tensile and compressive loadings is also analyzed.
- DX pile,
- tension bearing,
- capacity,
- static loading test,
- full-scale model

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References(5)

References

刘祖德.抗拔桩基础.见:刘金砺.桩基工程技术.北京:中国建材工业出版社,1996

[2] 贺德新,沈保汉.DX挤扩装置及DX多节挤扩桩的应用工业建筑,2001,31(1):27～31

[3] 沈保汉,贺德新,等DX多节挤扩桩的产生及特点工业建筑,2004,34(3):1～4

[4] 陈轮,王海燕,沈保汉,等.DX桩承载力及荷载传递特点的现场试验研究工业建筑,2004,34(3):5～8

[5] 黄锋.单桩在压与拔荷载下桩侧摩阻力发展机理研究:[博士学位论文].北京:清华大学,1998

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