›› 2012, Vol. 33 ›› Issue (4): 1031-1039.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Field test and numerical simulation of pile-slab foundation of 500 kV transmission line tower in silt

LIU Zhen-ping，HE Huai-jian，BAI Shi-wei，ZHANG Hua，ZOU Dan，LI Huo-bing   

  1. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Science, Wuhan 430071, China
  • Received:2010-10-28 Online:2012-04-13 Published:2012-04-26

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Abstract: A new foundation type called pile-slab base is introduced for the 500kV transmission line tower according to the geological conditions of silt. Then the field mechanical tests of heap loading and uplifting are done for this new foundation after the pile integrity testing. At the same time, the pressure of the slab, the stress of steel bar meters and the displacement deformation of four corners of the slab and pile are monitored. The results show that the compressive and uplifting resistance performance is excellent and the foundation can function as a whole to resist deformation; the engineering demand also can be satisfied. Moreover, the field test is simulated by the ABAQUS software; the conclusions are verified further on the basis of consistence between numerical calculation results and test data; therefore, the numerical model can be applied to other mechanical simulation reliably.

Key words: field test, tower foundation of pile-slab, uplifting resistance, numerical calculation

CLC Number: 

  • TU 447
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