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Distinct Responses of North Pacific and North Atlantic Summertime Subtropical Anticyclones to Global Warming
Publisher: American Meteorological Society
Abstract: The subtropical North Pacific and North Atlantic are controlled by basin-scale anticyclones in boreal summer. Based on a novel metric regarding the strengths of the rotational and the divergent circulation of anticyclones, ...
Train-Induced Vibrations from a Tunnel in a Layered Half-Space with Varied Groundwater Table
Publisher: ASCE
Abstract: This paper presents an analytical method to analyze the effect of the variation in the groundwater table on train-induced vibrations from subway tunnels. The soil above the groundwater table is considered as a dry single-phase ...
Estimation of Vehicle Mass and Road Grade of an Electric Vehicle Based on a Hybrid Algorithm
Publisher: ASCE
Abstract: In view of the parameter estimation of gross vehicle mass and road gradient during the driving of battery electric vehicles and according to the characteristics of the vehicle mass with steady variability and road gradient ...
Three-Dimensional Analytical Model for Coupled Track-Tunnel-Soil System in a Multilayered Half-Space
Publisher: ASCE
Abstract: An analytical model is presented in this paper to predict the three-dimensional dynamic response of a circular tunnel in an elastic multilayered half-space. By applying the transfer matrix method and wave transformation, ...
Modeling of Vehicle-Track-Tunnel-Soil System Considering the Dynamic Interaction between Twin Tunnels in a Poroelastic Half-Space
Publisher: ASCE
Abstract: The vibration prediction of a vehicle-track-tunnel-soil dynamic system is quite meaningful in engineering practice. However, the complexity involved in modeling the underground environment makes most previous studies ignore ...
Development of New Three-Dimensional Coal Mass Strength Criterion
Publisher: American Society of Civil Engineers
Abstract: In this study, laboratory tests were conducted to obtain the geomechanical properties for the coal matrix and coal discontinuities. Computed tomography (CT) scanning technology was then used to detect the pre-existing ...