Study on dynamic characteristics of saturated manufactured sand model soil for shaking table test

被引：0
作者：
Han Q. [1 ,2 ,3 ]
Wang Y. [3 ]
Liu M. [1 ,2 ,3 ]
Li H. [3 ]
机构：
[1] Key Laboratory of Earthquake Engineering Simulation and Seismic Resilience of China Earthquake Administration, Tianjin University, Tianjin
[2] Key Laboratory of Coast Civil Structure Safety, Ministry of Education, Tianjin University, Tianjin
[3] School of Civil Engineering, Tianjin University, Tianjin
来源：
Tumu Gongcheng Xuebao/China Civil Engineering Journal | 2024年 / 57卷 / 03期
关键词：
dynamic characteristics; dynamic triaxial test; liquefaction characteristics; preparation of model soil; saturated manufactured sand; similarity;
D O I：
10.15951/j.tmgcxb.23090776
中图分类号：
学科分类号：
摘要：
According to the similarity requirements of shaking table tests for saturated sand-structure interaction, the similarity of saturated sand was discussed, and the manufactured sand was proposed to be used as the universal model material for saturated sand. Through dynamic triaxial tests, the variation ranges of the maximum dynamic shear modulus Gmax, dynamic shear modulus ratio curve G/Gmax-γ, damping ratio curve λ-γ, and pore pressure ratio curve ru-ΔW of saturated manufactured sand model soil were studied. The variation laws and fitting formulas of the dynamic constitutive model parameters with effective particle size d10, uniformity coefficient Cu, curvature coefficient Cc and relative density Dr were obtained. And then, based on the similarity requirements and fitting formulas, the preparation method of saturated manufactured sand model soil was proposed for different situations. The similarity analysis with various prototype sand in the literatures showed that saturated manufactured sand model soil could effectively achieve similarity in dynamic and liquefaction characteristics for most prototype sand with wide applicability. © 2024 Chinese Society of Civil Engineering. All rights reserved.
引用
收藏
页码：110 / 122
页数：12
相关论文
共 25 条
  • [1] Zhuang Haiyang, Fu Jisai, Chen Su, Et al., Liquefaction and deformation of the soil foundation around a subway underground structure with a slight inclined ground surface by the shaking table test, Rock and Soil Mechanics, 40, 4, pp. 1263-1272, (2019)
  • [2] Ko Y Y, Li Y T., Response of a scale-model pile group for a jacket foundation of an offshore wind turbine in liquefiable ground during shaking table tests [ J ], Earthquake Engineering & Structural Dynamics, 49, 15, pp. 1682-1701, (2020)
  • [3] Chen Zhangsheng, Preliminary research on lateral seisimic behavior of batter piles based on shaking table test, (2016)
  • [4] (2020)
  • [5] Park T, Park D, Ahn J K., Pore pressure model based on accumulated stress [ J ], Bulletin of Earthquake Engineering, 13, 7, pp. 1913-1926, (2015)
  • [6] Wang Zhihua, He Jian, Gao Hongmei, Et al., Dynamic pore water pressure model for liquefiable soils based on theory of thixotropic fluid, Chinese Journal of Geotechnical Engineering, 40, 12, pp. 2332-2340, (2018)
  • [7] (2009)
  • [8] Lu X L, Chen Y Q, Chen B, Et al., Shaking table model test on the dynamic soil-structure interaction system [ J ], Journal of Asian Architecture and Building Engineering, 1, 1, pp. 55-64, (2002)
  • [9] Xenaki V C, Athanasopoulos G A., Liquefaction resistance of sand-silt mixtures: an experimental investigation of the effect of fines, Soil Dynamics and Earthquake Engineering, 23, 3, pp. 1-12, (2003)
  • [10] GB / T 50123—2019 Standard for geotechnical testing method, (2019)
123