J-GLOBAL ID:200904012244152780  Research Project code:9800027981 Update date:Nov. 14, 2001

Seismic resistance of pile foundation and behavior of earth retaining construction works

Study period:1993 - 0
Organization (1):
Investigating Researcher (1):
Research overview:
1) Seismic resistance of pile foundation for fluidized ground. A) The eigenvalue of a building/pile foundation system changes larger for lower height buildings, which thus will be severely affected by liquefaction. B) The stress applied to the piles under liquefaction markedly increases by the reactive force from ground and by the stiffness reduction in the ground surface. C) Under ground liquefaction, the response of the building and the stress to the piles decrease with deeper basements. Therefore, deep basements may be effective for the improvement of seismic resistance for ground liquefaction cases. 2) Behavior of earth retaining construction works. By comparing a self-sustaining work with a self-standing height of 12.2m and using a T-shaped stiff wall with a circular work of a radius of 140m, etc., it was concluded that these works considerably differ from the conventional works.
Keywords (10):
pile ,  earthquake ,  earthquake-resistant ,  earthquake-resistant ,  foundation ,  subgrade ,  building ,  earth ,  supporting ,  liquefaction(fluidization)
Research program: Ordinary Research

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