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RISNumerical Evaluation of Insulation Application to Embankment of Qinghai–Tibetan Highway
Publisher: American Society of Civil Engineers
Abstract: In many cases, protecting permafrost from further thaw due to human activities might be the first choice for embankment design in permafrost regions. Two-dimensional finite-element analysis was conducted, in which phase ...
In Situ Test on Cooling Effectiveness of Air Convection Embankment with Crushed Rock Slope Protection in Permafrost Regions
Publisher: American Society of Civil Engineers
Abstract: An experimental air convection embankment (ACE) was constructed in Beiluhe on the Qinghai-Tibet Plateau during 2001–2003, using coarse (5–8 and 40–50 cm), poorly graded crushed rock fill material on the slope of embankment ...
Investigation on the Effects of Freeze-Thaw Action on the Pore Water Pressure Variations of Soils
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Freeze-thaw action changes soil microstructure and thus has a great influence on physical and mechanical properties of soils, which is closely correlated to pore water pressure (PWP). Herein, the PWPs of sandy soil and ...
Frequency and Stability Analysis Method of Asymmetric Anisotropic Rotor Bearing System Based on Three Dimensional Solid Finite Element Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An efficient analysis method is suggested to investigate the frequency characteristics and stability of asymmetric anisotropic rotorbearing systems. Modifications are made to incorporate the effect of stator asymmetry into ...
Qinghai-Xizang Railroad Construction in Permafrost Regions
Publisher: American Society of Civil Engineers
Abstract: Construction of the Qinghai-Xizang Railroad (QXR) in permafrost regions presents a number of significant engineering problems. The engineering properties of permafrost can vary greatly, and climate warming, especially warm ...
Embankment Stability of the Qinghai–Tibet Railway in Permafrost Regions
Publisher: American Society of Civil Engineers
Abstract: It has been 1 years since the Qinghai–Tibet Railway (QTR), constructed from 21 to 25, was opened to traffic in 26. Experts from around the world, in the field of cold regions, have been paying close attention to ...
Aerodynamic Configuration of the HCW Based on the Lifting Body
Publisher: American Society of Civil Engineers
Abstract: A novel hypersonic aerodynamic configuration of the high-pressure–capturing wing (HCW) based on the lifting body is proposed, and computational fluid dynamics (CFD) is employed to carefully analyze longitudinal and lateral ...
Stability Analysis and Distortion Compensation of Robot Structure Dynamics for a Hybrid Simulator
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The space docking process must be simulated on the ground to guarantee the success of the space docking task. By synthesizing a physical simulation and a numerical simulation, a hybrid simulator can simulate the complicated ...
Long-Term Thermal Effects of Air Convection Embankments in Permafrost Zones: Case Study of the Qinghai–Tibet Railway, China
Publisher: American Society of Civil Engineers
Abstract: Long-term thermal effects of air convection embankments (ACEs) over 55-km-long permafrost zones along the Qinghai–Tibet railway were analyzed on the basis of 14-year records (22–216) of ground temperature. The results ...
Characteristics of Asphalt Pavement Damage in Degrading Permafrost Regions: Case Study of the Qinghai–Tibet Highway, China
Publisher: American Society of Civil Engineers
Abstract: In the context of climate warming, damage to road pavements and embankments in permafrost regions caused by thawing of underlying permafrost severely reduces the serviceability of roads. In this study, 1 types of asphalt ...