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RISUnified, Integral Approach to Modeling and Design of High-Pressure Pipelines: Assessment of Various Flow and Temperature Models for Supercritical Fluids
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A unified one-dimensional (1D), steady-state flow and heat transfer model is presented for the pipeline transport of fluids at high pressures, including the supercritical (SC) conditions. The model includes a generalized ...
Forensic Investigation of a Water Inrush Accident during Ground Freezing Recovery Work
Publisher: American Society of Civil Engineers
Abstract: An accident involving the collapse of a running tunnel along Nanjing metro occurred when the tunneling shield arrived at the receiving shaft. Then vertical ground freezing was adopted to recover the collapsed tunnel. ...
Application of Liquid Nitrogen Freezing to Recovery of a Collapsed Shield Tunnel
Publisher: American Society of Civil Engineers
Abstract: An accident involving the collapse of a running tunnel along the Nanjing Metro (Jiangsu Province, P. R. China) occurred as the tunneling shield arrived at the receiving shaft. The brine freezing method was used for the ...
Review of Study of Long-term Deflection for Long Span Prestressed Concrete Box-girder Bridge
Publisher: American Society of Civil Engineers
Abstract: The long-term deflection of Long Span Prestressed Concrete Box-girder Bridge (LSPCBB) is getting more and more serious in terms of structure safety. And there are still many ambiguous reasons as to the cause of the deflection ...
Exploratory Experimental Study on Fatigue Prestress Loss of Prestressed Concrete Beams
Publisher: American Society of Civil Engineers
Abstract: To study the fatigue prestress loss of prestressed concrete beams, four bonded post-tensioned bonded concrete simple supported beams were designed and constructed for constant-amplitude fatigue load displacement tests. ...
Long-Term Deflection Prediction and Correction of Creep and Shrinkage Model of High-Strength Concrete Based on Short-Term Measured Data for Bridge
Publisher: American Society of Civil Engineers
Abstract: To investigate the laws of creep and shrinkage in high-strength, concrete for long-span prestressed continuous box-girder bridge and predict long-term deflection, strain sensors were embedded in the midspan of a box-girder ...
Mechanical Properties and Mechanisms of Polyacrylamide-Modified Granulated Blast Furnace Slag–Based Geopolymer
Publisher: American Society of Civil Engineers
Abstract: Geopolymers are an environmentally friendly cementitious materials, which have the advantages of high strength, good durability, and stability; however, geopolymers also have some limitations, such as strong brittleness ...
A Trajectory Planning Method for Capture Operation of Space Robotic Arm Based on Deep Reinforcement Learning
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In order to deal with the complex dynamics and control problems involved in space debris removal, a trajectory planning technique for a spatial robotic arm based on twin delayed DDPG (TD3) in deep reinforcement learning ...
Assessment of Roller-Integrated Compaction Monitoring Indexes for Low-Liquid-Limit Silt Based on Roller Vibratory Acceleration Analysis
Publisher: ASCE
Abstract: Roller-integrated compaction monitoring technology has been widely used in highway construction and has played an important role in controlling compaction quality and construction progress. In order to detect and assess ...