›› 2011, Vol. 32 ›› Issue (5): 1596-1600.

• Testing Technology • Previous Articles    

Complicated loading device for pile foundation of wind-driven generator in centrifugal field

RONG Bing, ZHANG Ga, WANG Fu-qiang   

  1. State Key Laboratory of Hydrosciences and Engineering, Tsinghua University, Beijing 100084, China
  • Received:2010-02-02 Online:2011-05-10 Published:2011-09-23

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Abstract: Piles are widely used as a foundation for the offshore wind power generation and undergoing a complex combination of loads including the low-frequency cyclic wind loading. A new device has been developed to simulate the complicated loads on the piles during the centrifuge model tests. Apart from the horizontal and vertical static loads, this device can also realize a long-time and low-frequency cyclic load, with a combination of other types of loads that are applied simultaneously or successively. The validity of this device, that it can meet the requirement for simulating the complicated loads that the pile undergoes, is preliminarily verified via a series of tests. The test results show that the displacement of pile top increases with increasing number of cycles of horizontal cyclic loads; but the growth rate gradually decreased with the displacement tending to stabilize after a certain cycles; and the deformation of soils concentrates in a certain region near the pile

Key words: wind driven generator, pile foundation, centrifuge model test, complicated loads

CLC Number: 

  • TU 473.1
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