Effect of buried depth and diameter on uplift of underground structures in liquefied soils

被引：90

作者：

Chian, S. C. ^{[1
]}

Madabhushi, S. P. G. ^{[1
]}

机构：

[1] Univ Cambridge, Dept Engn, Schofield Ctr, Cambridge CB3 0EL, England

来源：

SOIL DYNAMICS AND EARTHQUAKE ENGINEERING | 2012年 / 41卷

关键词：

Earthquakes; -; Soils; Deposits;

D O I：

10.1016/j.soildyn.2012.05.020

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

In an earthquake, underground structures located in liquefiable soil deposits are susceptible to floatation following an earthquake event due to their lower unit weight relative to the surrounding saturated soil. The uplift displacement of an underground structure in liquefiable soil deposit can be affected by the buried depth and size of the structure. Dynamic centrifuge tests have been carried out to investigate the influence of these factors by measuring the uplift displacement of shallow model circular structures. Ratios for the buried depth and diameter effects of the structure are introduced to compare the uplift displacement in different soil and earthquake conditions. With the depth effect and diameter effect ratios, the uplift displacement of a buoyant structure in liquefiable soil can also be estimated based on performance of similar structures in comparable soil condition and subjected to a similar earthquake event. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：181 / 190

页数：10

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