›› 2011, Vol. 32 ›› Issue (12): 3630-3636.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Settlement calculation of new prestressed pipe-pile with rib based on Geddes’ formula

XIONG Hou-ren1, 2, NIU Zhi-rong1, JIANG Yuan-hai1, WU Xiang-song1, YANG Jiang-yong2   

  1. 1. College of Civil Engineering and Architecture, Jiaxing University, Jiaxing, Zhejiang 314001, China; 2. School of Architectural and Surveying & Mapping Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 341000, China
  • Received:2010-03-12 Online:2011-12-10 Published:2011-12-13

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Abstract: Based on Geddes’ stress formula, the hypotheses are designed aiming at the influence of annular flange rib of new prestressed pipe-pile with rib: The force of annular flange rib can be equivalent to the compaction to its lower part soil, i.e. additional stress; for the convenience of calculation, this kind of additional stress is simplified to the rectangular distribution skin friction resistance along double length of the lower part of annular flange rib; and the formula for calculating the settlement suitable for the single pile of new prestressed pipe-pile with rib is given; then Matlab software is used to program calculations. The calculated results are consistent with the experimental test results; so they can be used to estimate for the project.

Key words: new prestressed pipe-pile with rib, settlement, Geddes&rsquo, stress formula, annular flange rib, friction resistance

CLC Number: 

  • TU 473
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