南京工业大学课题组发表“基于惯性数的土壤液化过程表征”论文丨GDS动三轴DYNTTS应用实例

https://doi.org/10.1007/s10064-025-04663-8

*论文版权归原作者和出版方所有，本文仅为学习交流。

以下是对这项成果的简要介绍：

伺服电机控制器的动三轴试验系统DYNTTS

*图表为论文截图，版权归论文原作者和出版方所有，本文仅为学习交流。

Fig.2 The diagram of dynamic triaxial apparatus

Fig.3 Numerical sand model by DEM

Fig.4 Shear stress-shear strain relationships of soils under cyclic loading: (a) Nanjing fine sand, (b) Nanjing silt, (c) Calcareous sand, (d) Numerical sand

Fig.5 Evolution of excess pore pressure ratio of soils under cyclic loading: (a) Nanjing fine sand, (b) Nanjing silt, (c) Calcareous sand, (d) Numerical sand

Fig.6 Particle distribution of numerical sands

Fig.7 Probability density distributions with unbalanced force for numerical sands in DEM simulations: (a) Particle group 2 at the end of the 6^th cycle, (b) Different particle groups at the end of the 6^th cycle

Fig.10 Evolutions of inertial number, shear strain rate, effective mean stress ratio, axial strain for the examined four types of soils: (a) Nanjing fine sand, (b) Nanjing silt, (c) Calcareous sand, (d) Numerical sand

Fig.12 Effect of effective confining pressure on the evolution of average inertial number: (a) Nanjing fine sand, (b) Nanjing silt, (c) Calcareous sand, (d) Numerical sand

备注：论文及摘要等为论文原文的中文译文，仅供快速参考；若遇语义或技术细节歧义，请以英文原文为准。完整研究内容、参数取值及验证数据请查阅原文。

GDS高级动态三轴试验系统 (DYNTTS) 是一套高端的试验设备，它将三轴压力室和动力驱动器合为一体，可以施加最大5Hz的动态荷载、变形和应力。轴向加载由装有马达驱动的基座螺旋传动，从压力室底座施加轴向力和轴向变形。

典型动三轴试验系统DYNTTS

300mm大直径动三轴与经典型动三轴DYNTTS压力室对比

定制温控动三轴DYNTTS

5Hz/10kN系统频率和幅值的典型系统表现

1Hz时位移控制的典型试验结果-轴向位移反馈控制

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