Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Simplified procedures for assessing soil liquefaction during earthquakes
Abstract Simplified methods to evaluate the effects of saturated sandy soil liquefaction are needed for reasonable earthquake resistant design of structures considering the surrounding soil liquefaction. The authors, Iwasaki et al.,1 proposed two simplified methods with use of a liquefaction resistance factor F L and a liquefaction potential index I L to evaluate the liquefaction potential of saturated sandy soils. Based on the proposed methods, the liquefaction potential can be estimated simply by using the fundamental properties of soils, i.e. N-values of the standard penetration test, unit weights, mean article diameters, and maximum acceleration at ground surface. In this paper, the two simplified methods are firstly introduced, and to prove the effectiveness of the proposed methods the values of both F L and I L at 64 liquefied sites and 23 non-liquefied sites during past six earthquakes are calculated according to the simplified methods. Also shaking table tests on soil liquefaction are carried out for the saturated sandy model ground. Furthermore, several application methods using the factor F L, the excessive pore water pressure induced in the saturated sandy soils and the effects of soil liquefaction on the resistance properties of grounds surrounding structures are described.
Simplified procedures for assessing soil liquefaction during earthquakes
Abstract Simplified methods to evaluate the effects of saturated sandy soil liquefaction are needed for reasonable earthquake resistant design of structures considering the surrounding soil liquefaction. The authors, Iwasaki et al.,1 proposed two simplified methods with use of a liquefaction resistance factor F L and a liquefaction potential index I L to evaluate the liquefaction potential of saturated sandy soils. Based on the proposed methods, the liquefaction potential can be estimated simply by using the fundamental properties of soils, i.e. N-values of the standard penetration test, unit weights, mean article diameters, and maximum acceleration at ground surface. In this paper, the two simplified methods are firstly introduced, and to prove the effectiveness of the proposed methods the values of both F L and I L at 64 liquefied sites and 23 non-liquefied sites during past six earthquakes are calculated according to the simplified methods. Also shaking table tests on soil liquefaction are carried out for the saturated sandy model ground. Furthermore, several application methods using the factor F L, the excessive pore water pressure induced in the saturated sandy soils and the effects of soil liquefaction on the resistance properties of grounds surrounding structures are described.
Simplified procedures for assessing soil liquefaction during earthquakes
Iwasaki, Toshio (Autor:in) / Arakawa, Tadashi (Autor:in) / Tokida, Ken-Ichi (Autor:in)
01.01.1984
10 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Assessment of soil liquefaction during earthquakes
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Semi-empirical procedures for evaluating liquefaction potential during earthquakes
| British Library Online Contents | 2006