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Tiêu đề: Simplified Design Procedure for Piled Raft Foundations - H.G. Poulos, Fellow, AS [In trang]

Tác giả: AloneGalaxy Thời gian: 16/5/2011 15:49
Tiêu đề: Simplified Design Procedure for Piled Raft Foundations - H.G. Poulos, Fellow, AS
Abstract
"In situations where a raft foundation alone does not satisfy the design requirements, it
may be possible to enhance the performance of the raft by the addition of piles. The use
of a limited number of piles, strategically located, may improve both the ultimate load
capacity and the settlement and differential settlement performance of the raft. This
paper outlines the development of a simplified method of analysis which can provide a
useful tool for preliminary design of piled raft foundations. It involves two phases:
1. The assessment of the overall foundation behavior;
2. The assessment of the behavior under individual column loads.
In both cases, use is made of simplified solutions to compute foundation stiffness
and capacity characteristics. The selection of design geotechnical parameters is an
essential component of both design stages, and some approximations for estimating the
necessary parameters are summarized.
Typical applications to a case history of a piled raft and to model centrifuge tests
are described, and it is found that the behavior predicted by the simplified analysis is
broadly consistent with the measured behavior."

Simplified Design Procedure for Piled Raft Foundations - H.G. Poulos, Fellow, ASCE.rar (677.45 KB, Lượt tải về: 57)

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