Property estimation of free-field sand in 1-g shaking table tests

被引：0

作者：

Xu Chengshun ^{[1
]}

Jiang Zhiwei ^{[1
,2
,3
]}

Du Xiuli ^{[1
]}

Deng Lijun ^{[4
]}

Li Zheng ^{[5
]}

机构：

[1] College of Architecture and Civil Engineering, Beijing University of Technology

[2] National Engineering Research Center of Green & Safe Construction Technology in Urban Rail Transit, Beijing Urban Construction Design and Development Group Co, Ltd

[3] Department of Civil Engineering, Tsinghua University

[4] Department of Civil and Environmental Engineering, University of Alberta

[5] Université Gustave Eiffel, Département GERS, Laboratoire Centrifugeuses Géotechniques (CG)

来源：

EarthquakeEngineeringandEngineeringVibration | 2022年 / 21卷 / 03期

关键词：

D O I：

暂无

中图分类号：

TU41 [土工试验];

学科分类号：

081401 ;

摘要：

Experimental data taken from free-field soil in 1-g shaking table tests are valuable for seismic studies on soil-structure interaction. But the available data from medium-to large-scale shaking table tests were not abundant enough to cover a large variety of types and conditions of the soil. In the study, 1-g shaking table tests of a 3-m-height sand column were conducted to provide seismic experimental data about sand. The sand was directly collected in-situ, with the largest grain diameter being 2 cm and containing a water content of 6.3%. Properties of the sand were estimated under the influence of white noise plus pulse and earthquake motions, including the settlement, the dynamic properties of the sand column, and the three soil layers′ shear modulus degradation relationships. The estimated properties were then indirectly verified by means of finite element analysis. Results show that the estimated parameters were effective and could be used in numerical modeling to reproduce approximate seismic responses of the sand column.

引用

页码：591 / 604

页数：14

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