Affiliation:
1. University of Science and Technology Beijing
2. North China University of Water Resources and Electric Power
3. China Huanqiu Contracting & Engineering Corporation
Abstract
Squeezed branch pile is based on the traditional uniform pile in development of a new type of pile, with a high bearing capacity, settlement of small features widely used in the engineering. Based on the actual project site static test, analyzed the vertical bearing capacity characteristics of two adjacent squeezed branch piles; By means of testing of the pile stress gauge steel embedded in different parts of piles, the axial force transfer characteristics of the body, support plate side resistance drag and play characteristics of the squeezed branch pile were analyzed. The results showed that: the branch pile Q-S curve is slowly varying type, the three branch share of the load ratio increases with the pile top load increases and then decreases, load sharing ratio of 12% or so. The side resistance increased with the pile top displacement, the curve showed significant enhancement traits. Measured friction value of two test piles is too conservative under the existing norms, the actual measured value of 1.2～1.6 times of the standardized value.
Publisher
Trans Tech Publications, Ltd.
Reference8 articles.
1. QIAN Deling. A study on compression and extraction resistance behavior of squeezed supporting disk piles[J]. Rock and Soil Mechanics, 2003, 24(Supp. 2): 517–520. (in Chinese).
2. QIAN Deling. Study on loading transfer law and FEM simulation of squeezed branch pile[J]. Chinese Journal of Geotechnical Engineering，2002，24(3)：371–375. (in Chinese).
3. OGURA H，YAMAGATA K，KISHIDA H. Study on bearing capacity of nodular cylinder pile by scaled model test[J]. Struct. Eng., AIJ, 1987, 374: 87–97.
4. OGURA H，YAMAGATA K，OHSUGI F. Study on bearing capacity of nodular cylinder pile by full-scale test of jacked piles [J]. Struct. Eng. AIJ. 1988, 386: 66–77. (in Chinese).
5. MENG Fan li, LU Cheng Yuan, SHOU Tie jun. Research on bearing property and engineering application of cast-in-place piles with branches and plates[J]. Journal of Zhejiang University of Technology, 2003, 31(6): 673–678. (in Chinese).
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献