Mechanism of Load Transfer on Ultra-long  and Large-Diameter Bored-Piles at Thermal Power Plant Phase-Ⅱin Hai Phong City of Vietnam

JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTI ›› 2012, Vol. 29 ›› Issue (3): 55-58.

• ROCK-SOIL ENGINEERING • Previous Articles Next Articles

Mechanism of Load Transfer on Ultra-long and Large-Diameter Bored-Piles at Thermal Power Plant Phase-Ⅱin Hai Phong City of Vietnam

ZHANG Li-jie ^1,2, BIAN Zhi-hua ² ,JING Feng ² ,TANG Hui-ming ¹,YANG Xi-qing ³ ,YE Hong-wei ³ ,BI Cheng ³

1.Faculty of Engineering, China University of Geosciences, Wuhan 430074, China； 2.Key Laboratory of Geotechnical Mechanics and Engineering of MWR, Yangtze River Scientific Research Institute, Wuhan430010，China； 3.Hubei First Electric Power Engineering Construction Company, Wuhan 430061, China

Received:2011-02-14 Online:2012-03-01 Published:2012-05-15

Abstract

Abstract: The thermal power plant is located at Thuy-nguyen District, Haiphong city in Vietnam with an installed capacity of 2×300 MW. Since the power plant is located in a low land near the Gia River with developed Karst geomorphology and thick mucky soil strata on the top, the soil quality is too weak to meet the requirements of the foundation. Bored piles are planned to be used on the main construction area. Pile foundation test is performed in this project area. Mechanism of axial force transfer on the pile and the characteristics of load-settlement of the pile are analyzed. The results suggest that the ultimate bearing capacity of single pile could be 7000kN in this area. The axial force transfer on pile is influenced by many factors. Load on the pile top is transferred down gradually by lateral friction resistance which takes up a great proportion compared with the friction resistance on the pile end. Sediment thickness at the bottom of pile remarkably affects the pile top settlement and the ultimate bearing capacity of pile.

CLC Number:

P642

ZHANG Li-Jie, BIAN Zhi-Hua, JING Feng, TANG Hui-Ming, YANG Xi-Qing, YE Hong-Wei, BI Cheng. Mechanism of Load Transfer on Ultra-long and Large-Diameter Bored-Piles at Thermal Power Plant Phase-Ⅱin Hai Phong City of Vietnam[J]. JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTI, 2012, 29(3): 55-58.

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Mechanism of Load Transfer on Ultra-long and Large-Diameter Bored-Piles at Thermal Power Plant Phase-Ⅱin Hai Phong City of Vietnam

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