A5101446373- Climate change and permafrost
- Cryospheric studies and observations
- Geotechnical Engineering and Analysis
- Microwave Dielectric Ceramics Synthesis
- Landslides and related hazards
- Civil and Geotechnical Engineering Research
- Nuclear materials and radiation effects
- Ferroelectric and Piezoelectric Materials
- Rock Mechanics and Modeling
- Geothermal Energy Systems and Applications
- Soil and Unsaturated Flow
- Electromagnetic Launch and Propulsion Technology
- Glass properties and applications
- High-Velocity Impact and Material Behavior
- Railway Engineering and Dynamics
- Geotechnical Engineering and Soil Mechanics
- Energetic Materials and Combustion
- Geotechnical Engineering and Soil Stabilization
- Advanced ceramic materials synthesis
Lanzhou Jiaotong University
2020-2024
Shanghai Institute of Ceramics
2022-2023
Chinese Academy of Sciences
2022-2023
China South Industries Group (China)
2021
Frost jacking of electricity transmission tower (ETT) pile foundations in permafrost regions the Qinghai–Tibet Plateau is becoming increasingly serious. This study investigated effects thermosyphons on frost characteristics such foundations. Field tests with and without were carried out Wonkhu–Budongquan section Plateau. A three-dimensional finite-element model was established to analyze effectiveness thermosyphons, ground temperature distributions, displacements force ETT The results showed...
The shear creep characteristics of the contact surface between permafrost and structure play an important role in study law deformation measures for prevention control pile foundations. In order to development tendency concrete, it is necessary establish accurate model. this study, based on Nishihara model, a nonlinear element damage factor D were introduced intrinsic model permafrost-concrete surfaces considering effect stress. Creep tests with graded loading concrete frozen silt different...
This study focused on the coupling heat transfer mechanism and cooling efficiency of L-shaped two-phase closed thermosyphons (L-shaped TPCTs) in wide subgrade permafrost regions. Considering fact that time–space dynamics change effects air temperature, wind speed, geotemperature, a coupled temperature–L-shaped TPCT–subgrade soil model was established using ANSYS 15.0 software platform, rationality verified through measured data. The heat-transfer characteristics TPCTs long-term thermal...
Abstract The frost heave rate and stiffness of soil in frozen foundations varies remarkably with the freezing depth under influence freezing-end temperature, temperature gradient, overburden stress. stress level increases increasing penetration, leading to greater a smaller rate. In this work, gradient are introduced traditional Takashi model via layering method is modified establish an empirical prediction stiffness. Analytical solutions load transfer differential equation single pile...
Abstract Pyrotechnic agent was a sensitive energetic material that produces explosion and combustion effects of pyrotechnics. It plays decisive role in the safety, reliability effectiveness weapon system. Because current pyrotechnic is to high temperature, mechanical impact, friction, there are many unsafe factors its manufacture use. The demand continuous, automatic environmental protection production technology for pyrotechnics China increasing. traditional explosive can not meet these...