›› 2014, Vol. 35 ›› Issue (S2): 278-283.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Application of shape acceleration array technology to shaking table model test of soil-structure system

NI Ke-chuang，GAO Wen-sheng   

  1. Institute of Foundation Engineering, China Academy of Building Research, Beijing 100013, China
  • Received:2014-06-05 Online:2014-10-31 Published:2014-11-12

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Abstract: Shape acceleration array (SAA) is a sensor based on microelectronic mechanical system (MEMS) testing principle used to test acceleration and displacement, and it has the characteristics of high accuracy, reusable, automatic real-time acquisition. This paper presents the first use of the shape-acceleration array (SAA) technology in shaking table test of pile and composite subgrade in layered soils. We investigate the displacement response of the coupling system of pile and composite subgrade as well as soils under seismic excitations. Experimental results show that SAA can record the dynamic behavior of piles and soils in regard to accelerations and deformations. We also observe that the deformations of piles and soils are compatible only under small amplitude earthquakes. The existence of soft soil layers has a large effect on the horizontal displacement of the soil foundation.

Key words: shape acceleration array (SAA), shaking table test, pile foundation, composite subgrade

CLC Number: 

  • TU 443
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