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RISStability Factors <i>F<sub>c</sub></i>, <i>F<sub>s</sub></i>, and <i>F<sub>γ</sub></i> for Twin Tunnels in Three Dimensions
Publisher: ASCE
Abstract: This paper aims to study the three-dimensional (3D) tunnel heading pressure of twin circular tunnels in a drained cohesive–frictional soil using a stability factor approach and finite-element limit analysis (FELA). The ...
Three-Dimensional Analysis of Circular Tunnel Headings Using Broms and Bennermark’s Original Stability Number
Publisher: ASCE
Abstract: The stability of a tunnel face is described by the combined effects of surcharge load, self-weight of the soil, and internal supporting pressure. This combination can cause failure in either blowout or collapse. Since the ...
Three-Dimensional Hydrodynamic Simulation of Tidal Flow through a Vegetated Marsh Area
Publisher: American Society of Civil Engineers
Abstract: Simulation of tidal flow in an estuarine marsh area is challenging because of resistance from spatially and temporally varied vegetation. This study simulated the tidal flow in the Davis Pond marsh area near New Orleans, ...
Influence of Photovoltaic Shading on Rooftop Heat Transfer, Building Energy Loads, and Photovoltaic Power Output
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Photovoltaic (PV) modules on building rooftops provide shade from summer heating, leading to a reduction in cooling load during hot seasons. However, PV shading also reduces passive solar heating during winter months, ...
Building Energy Savings and Power Output Augmentation of Roof Mounted Photovoltaic Using Co-Located Rooftop Reflectors
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Photovoltaic (PV) panels installed on building rooftops yield a positive influence on the thermal performance of the building due to the shading of the PV panels, decreasing cooling loads while causing a smaller increase ...