MODEL VIBRATION TESTS FOR THE SEISMIC EARTH PRESSURE ACTING ON THE RIGID CAISSON FOUNDATION AND ITS ANALYSES

This paper reports research on the seismic earth pressure acting on a rigid caisson foundation, using model vibration tests. In order to account for the characteristics of the seismic earth pressure influenced by the backfill ground vibration, the frequency of an input sinusoidal wave was chosen from 1 Hz to 50 Hz. The seismic earth pressure was separated into a static component and a dynamic component. The fundamental change in the dynamic earth pressure with frequency, the effect of the caisson mass on the dynamic earth pressure, and its phase difference from the inertia force of the caisson and its distribution were measured. The applicability of the Mononobe-Okabe formula was studied by comparing results obtained using this with those obtained in the experiment. The experimental results were also analysed using a numerical model called the "rigid body- ground spring model". Good agreement was obtained between the experiment and the numerical model. It was found reasonable that the seismic earth pressure was separated into two parts, the dynamic component and the static one.

• Corporate Authors:

  MINISTRY OF TRANSPORT

  YOKOSUKA,   Japan 
• Authors:
  • Kazama, M
  • INATOMI, T
  • Ohtsuka, K
• Publication Date: 1990-6

Language

• Japanese

Media Info

• Features: References;
• Pagination: p. 177-217
• Serial:
  • REPORT OF THE PORT AND HARBOUR RESEARCH INSTITUTE
  • Volume: 29
  • Issue Number: 2
  • Publisher: MINISTRY OF TRANSPORT

Subject/Index Terms

• TRT Terms: Caissons; Earth pressure; Foundations; Seismicity; Vibration
• Uncontrolled Terms: Active earth pressure; Earth pressure at rest; Passive earth pressure
• Subject Areas: Bridges and other structures; Geotechnology;

Filing Info

• Accession Number: 00638618
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Nov 24 1993 12:00AM