Model tests on liquefaction characteristics of saturated sand deposits under nonuniform vertical stresses
Memoirs of the Faculty of Engineering, Yamaguchi University Volume 45 Issue 1
Page 23-28
published_at 1994-10
Title
不均等な鉛直応力下にある飽和砂地盤の液状化に関するモデル実験
Model tests on liquefaction characteristics of saturated sand deposits under nonuniform vertical stresses
Creators
Yamamoto Tetsuro
Creators
Ishikawa Mitsuo
Creators
Ohara Sukeo
Source Identifiers
In our previous study, in order to clarify the liquefaction characteristics of saturated sand deposit under nonuniform vertical stresses, shaking tabel tests on models were performed. It was found from the tests that RVS and k_h affects the occurrence of liquefaction of the models. In this paper, in order to investigate it in more detail, shaking table tests on three models having RVS of 0.57,0.35 and 0.21 prepared in two Kjellman's type shear boxes are performed. Here RVS=(σ'_<vo>)_1/(σ'_<vo>)_h, in which (σ'_<vo>)_1 and (σ'_<vo>)_h denote lower and higher vertical stresses of two neighboring sand elements. It is found from the tests that the liquefaction characteristics of the model are affected by the values of RVS and horizontal seismic coefficient k_h of vibration. It is also shown that an initial shear stress Δτ affects the liquefaction characteristics of the model (1) at k_h less than 0.1.
Languages
jpn
Resource Type
departmental bulletin paper
Publishers
山口大学工学部
Date Issued
1994-10
File Version
Version of Record
Access Rights
open access
Relations
[ISSN]0372-7661
[NCID]AN00244228
Schools
工学部