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| Analysis of Load Capacity Behaviors of Steel Fiber Reinforced Concrete Piles Through Model Tests |
| OUYANG Fang1,ZHANG Jianjing1,DENG Xiaoning2,HAN Jianwei1,BI Junwei1,DU Lin1 |
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(1. Civil Engineering Institute， Southwest Jiaotong University， Chengdu 610031， China；
2. Zhengzhou Nuclear Geotechnical Engineering Co. Ltd., China Nuclear Engineering Group Co.,
Zhengzhou 450002， China) |
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Abstract Abstract： Static load tests of concrete piles of different diameters with and without steel fiber were conducted to study the bearing capacity, the characteristics of strain, and the damage phenomenon of steel fiber reinforced concrete piles under vertical loads. Strain gauges were arranged along the longitudinal direction of the piles in order to measure the strain. Besides, a comparative analysis of the damage features between the steel fiber reinforced concrete pile and the concrete pile was conducted with the excavated piles after the completion of the tests. It is found that the compression deformation of the concrete pile can be effectively decreased with the steel fiber. The steel fiber reinforced concrete pile of the diameter equal to 7.0 cm has less compression and larger ultimate bearing capacity compared to that of the pile with the diameter equal to 4.5 cm. However, the compression and the ultimate bearing capacity vary little when the diameter of the piles changes from 7.0 cm to 8.0 cm. Moreover, the cracks or damage appear at the bottom or top of these piles, and the crack resistance of the concrete pile is improved with the steel fiber. Based on the results, some suggestions were proposed for the design of the steel fiber reinforced concrete pile.
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Received: 22 May 2015
Published: 28 March 2016
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| [2] |
MENG Zhen,CHEN Jinjian，WANG Jianhua. The Coupled EulerianLagrangian Analysis of Pile Jacking Process in#br#
Saturated Soft Clay by Using Modified CamClay Model[J]. J. Shanghai Jiaotong Univ.(Sci.) , 2017, 51(3): 263-. |
| [3] |
ZENG Fanyun,LI Mingguang,CHEN Jinjian，WANG Jianhua. Development and Application of a System for Dynamic and#br#
Synchronous Analysis of both Monitor Data and#br#
Construction Information in Foundation Pit Groups[J]. J. Shanghai Jiaotong Univ.(Sci.) , 2017, 51(3): 269-. |
| [4] |
ZHAO Xiangshan,CHEN Jinjian,HUANG Zhonghui,WANG Jianhua. Determination of Soil Parameters for Numerical Simulation of an Excavation
[J]. J. Shanghai Jiaotong Univ.(Sci.) , 2016, 50(01): 1-7. |
| [5] |
DU Jialun1，4,ZUO Zibo2,RONG Jian3,HUANG Xingchun1, 2. Influence of Construction Procedures on Adjacent Energy Supply Pipeline due to Large Foundation Pit Excavation[J]. J. Shanghai Jiaotong Univ.(Sci.) , 2015, 49(07): 998-1004. |
| [6] |
ZHANG Bin1,HUANG Zhonghui1，2,ZHU Yanfei1，3,WANG Jianhua1. Data Model and Data Structure of Deep Excavation Considering Parameter Fusion[J]. J. Shanghai Jiaotong Univ.(Sci.) , 2014, 48(11): 1517-1522. |
| [7] |
ZHANG Kanghan1,CHEN Jinjian1，WANG Jianhua1,DU Yi2. Movement of Tunnel between Two Adjacent Concurrent Excavations[J]. J. Shanghai Jiaotong Univ.(Sci.) , 2013, 47(10): 1537-1541. |
| [8] |
DU Ye1,2,CHEN Longzhu1,ZHANG Jingyi1,YANG Yu3,MA Ye3. Analysis of Defects of Pile Shaft for Parallel Seismic Test[J]. J. Shanghai Jiaotong Univ.(Sci.) , 2013, 47(10): 1562-1568. |
| [9] |
ZHAN Yongxiang1，YAO Hailin1，DONG Qipeng1，WANG Jiaqiang2，HE Dongping3. Soil Arching Effect Analysis of Anti-slide Piles in Loose Media Landslide[J]. J. Shanghai Jiaotong Univ.(Sci.) , 2013, 47(09): 1372-1376. |
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LIU Yi-Jie, CHEN Jin-Jian, WANG Jian-Hua, ZHU Yan-Fei. Risk Evaluation Method of Deep Excavation Considering Multi-parameter Correlation[J]. J. Shanghai Jiaotong Univ.(Sci.) , 2012, 46(10): 1594-1603. |
| [11] |
JIN Guo-Long, WANG Yong, GU Kai-Yun. Influence of Constructing Hand-Dug Piles Closing to Retaining Wall[J]. J. Shanghai Jiaotong Univ.(Sci.) , 2012, 46(01): 84-88. |
| [12] |
LIANG Zhi-Rong, LI Zhong-Cheng, LI Cheng-Wei. An Engineering Accident Analysis and Treatment of Prefabricated Engineering Piles in Shanghai[J]. J. Shanghai Jiaotong Univ.(Sci.) , 2012, 46(01): 69-72. |
| [13] |
SUN Bo，ZHANG Lu-lu，WANG Jian-hua. Uncertainties of Piles Load Transfer Parameters[J]. J. Shanghai Jiaotong Univ.(Sci.) , 2008, 42(11): 1866-1870. |
| [14] |
DING Yong-chun1，WANG Jian-hua1，XU Zhong-hua2，CHEN Jin-jian1. Deformation Characteristics of Deep Excavations for Metro Stations in Shanghai Soft Soil Deposits[J]. J. Shanghai Jiaotong Univ.(Sci.) , 2008, 42(11): 1871-1875. |
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