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A model test system with a dynamic load device forgeotechnical engineering in cold regions
Authors:ShuPing Zhao  Wei M  GuiDe Jiao  Fei Luo
Affiliation:State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.;State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.;1. State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.2. Civil and Engineering Department, Lanzhou University, Lanzhou, Gansu 730000, China.;State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.
Abstract:A model test system with a dynamic load device for geotechnical engineering in cold regions is presented. This system consists ofa model test tank, a refrigeration device and temperature controller, a dynamic load device, together with sensors and data loggersfor detecting stress, deformation, and temperature changes. The system can accommodate soil blocks up to 3 m in length, 2.5 m inwidth, and 1 m in height. The lowest temperature provided by the refrigeration device is -20 °C. The maximum load provided bythe dynamic load device is 100 kN and the vibration frequency of the dynamic load can range from 0.1 to 10 Hz. A number ofwaveforms, such as sine waves, rectangular waves, triangle waves, and other user-defined waves can be generated by the dynamicload device controller.
Keywords:model test system   dynamic load device   stress   deformation   temperature change
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