Analytical evaluation of reducing bending moment in piles with soil cement partial improvement
In. Hamada, M, ed; O'Rourke, T, ed. Proceedings from the Sixth Japan-U.S. Workshop on Earthquake Resistant Design of Lifeline Facilities and Countermeasures Against Soil Liquefaction. Buffalo, NY, U.S. National Center for Earthquake Engineering Research, Sep. 1996. p.565-76, ilus, tab.
Monography
in En
| DESASTRES
| ID: des-9718
Responsible library:
CR3.1
Localization: CR3.1; DES
ABSTRACT
The authors have developed a new code for three-dimensional nonlinear analysis based on effective stress to assess the dynamic response of structures on liquefiable ground. The object of this paper is to study using the new code the effectiveness of some remediation methods as a means to protect a group pile foundation from soil liquefaction hazard. Four types of foundation supporting a rigid structure are considered 1) end-bearing piles in unimproved ground, 2) end-bearing piles in the ground improved with sand compaction piles, 3)end-bearing piles and a "soil cement ring", 4) end-bearing piles and a "soil cement block". The study shows that the remedial measures of Case 3 and Case 4 reduce remarkably the magnitude of the internal forces in the piles, even though the size of the soil improvement is smaller than that of the other methods.(AU)
Collection:
05-specialized
Database:
DESASTRES
Main subject:
Soil Mechanics
/
Evaluation Study
/
Engineering
/
Earthquakes
Language:
En
Year:
1996
Document type:
Congress and conference
/
Monography