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RISAnalytical Solution of the Mechanical Response of a Shield Tunnel Crossing an Active Ground Fissure Zone
Publisher: American Society of Civil Engineers
Abstract: Uneven settlement of the strata induced by ground fissure activity trigger great damage to a shield tunnel crossing a ground fissure zone. It is of great significance for the safe maintenance of tunnels to accurately predict ...
Extracting Urban Subzonal Land Uses through Morphological and Spatial Arrangement Analyses Using Geographic Data and Remotely Sensed Imagery
Publisher: American Society of Civil Engineers
Abstract: Land use (LU) information is of significant value for various urban studies and is needed for a wide variety of decision-making initiatives in the range of global, regional, and urban areas. However, it has been difficult ...
Analysis of the Entire Failure Process of the Rotational Slide Using the Material Point Method
Publisher: American Society of Civil Engineers
Abstract: In view of the postfailure simulation, the material point method (MPM) has higher computational efficiency and better computational stability compared with the other numerical methods. This paper aims to understand the ...
Differences between Time-Dependent Instantaneous and Apparent Chloride Diffusion Coefficients of Concrete in Tidal Environment
Publisher: ASCE
Abstract: Time-dependent chloride diffusivity can reflect the chloride transport in concrete, which is greatly affected by different factors such as material composition and environment condition. In this paper, three tests with ...
Randomness and Similarity of Concrete Permeability in a Natural Tidal Environment
Publisher: ASCE
Abstract: This work first analyzes the time-dependent property of average concrete permeability by the relative decline ratio and proposes an analysis method for the randomness of time-dependent variables. Then, based on exposure ...
Numerical Modeling of Pumping-Induced Earth Fissures Using Coupled Quasi-Static Material Point Method
Publisher: ASCE
Abstract: Pumping-induced earth fissuring is a typical fluid–solid coupling problem involving fracture evolution. Despite recent advances in the numerical modeling of earth fissures, a holistic approach capable of predicting their ...
Permeability Test of Saturated Clay under Stepwise Loading
Publisher: American Society of Civil Engineers
Abstract: Issues in the consolidation deformation of saturated clay have a close relationship with its permeability. In this work, a modified K oedometer was used to conduct a variable water head permeability test. The changing law ...
Reducing Full-Field Residual Stress of Girth Weld With Thick Wall by Combining Local PWHT and Water Jet Peening
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, a new controlling method combined local postweld heat treatment (PWHT) and water jet peening (WJP) was proposed to reduce full-field residual stress of girth weld with thick wall. The finite element analysis ...
A Virtual Supply Airflow Rate Sensor Based on Original Equipment Manufacturer Data for Rooftop Air Conditioners
Publisher: ASCE
Abstract: The supply airflow rate is crucial for monitoring, controlling, and detecting faults in rooftop air conditioner units (RTUs). However, the cost and intrusiveness of a supply airflow rate sensor (SARS) make it difficult to ...
A Robot System for Rapid and Intelligent Bridge Damage Inspection Based on Deep-Learning Algorithms
Publisher: ASCE
Abstract: Large numbers of bridges have already suffered various types of damage but still operate all year round without proper treatment. Conducted primarily manually, the routine bridge inspections are ineffective in detecting ...