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RISA Governance Framework for the Sustainable Delivery of Megaprojects: The Interaction of Megaproject Citizenship Behavior and Contracts
Publisher: ASCE
Abstract: Compared with the performance dilemma, how to deliver a megaproject following the principle of sustainability is a more intractable problem. For the sustainable delivery of megaprojects (SDM), contracts and megaproject ...
Effect of Social Identity on Megaproject Managers’ Conflict Management Styles
Publisher: American Society of Civil Engineers
Abstract: The complexity of megaprojects and their nested organizational structure contribute to the constant occurrence of project conflicts. The dual identity of project managers brings about two distinct modes of identification: ...
Fracture Mode Transition for Explosively Loaded GB/JB 20 Steel Containment Vessels
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A rupture experiment was conducted on cylindrical explosion containment vessels (ECVs), where the fracture mode transition was observed. Microstructure examinations indicate the material GB/JB20 (AISI 1020) experienced a ...
Fluctuating Frequency of Live Bed Scour Depth around Submerged Weirs at Equilibrium Stages
Publisher: ASCE
Abstract: Previous studies have primarily focused on the estimation of equilibrium scour depths around weirs, while overlooking the details of the temporal evolution of the live bed scour process of submerged weirs at the equilibrium ...
Evolution of Soil Arching Subjected to Dynamic Loads
Publisher: ASCE
Abstract: The Loess Plateau in Northwest China is located in a seismic area. Therefore, the high-filled cut-and-cover tunnels (HFCCTs) in this area are subjected to high earthquake risk. The load reduction measure of laying an ...
Automatic Astronomical Survey Method Based on Video Measurement Robot
Publisher: ASCE
Abstract: Utilizing charge-coupled device (CCD) imaging technology in astronomical surveying and positioning facilitates high-precision measurements without manual observation. This eliminates the influence of the traditional celestial ...
Coupled Effect of Cross-Sectional Shape and Load Reduction on High-Filled Cut-and-Cover Tunnels Considering Soil–Structure Interaction
Publisher: ASCE
Abstract: High-filled cut-and-cover tunnels (HFCCTs) are common in northwestern China because their construction allows usable land over the CCT to be reclaimed. However, due to the unique landforms of the Loess Plateau in this ...
Evolution of Load Reduction for High-Filled Cut-and-Cover Tunnels Subjected to Soil Creep
Publisher: ASCE
Abstract: The excessive load from the high embankments of high-filled cut-and-cover tunnels (HFCCTs) threatens the safety and stability of HFCCTs. Relatively low-compacted (RLC) soil can reduce such loads in the short term, but the ...
Oxyfuel Cofiring Characteristics of Biomass with Ultralow Volatile Carbon-Based Fuels
Publisher: American Society of Civil Engineers
Abstract: Biomass from agricultural production is a renewable energy source with a high-volatile content. Semicoke (SC) and gasification residual carbon, which are ultralow volatile carbon-based fuels (LVFs), are by-products of the ...
Study of Pore Volume Fractal Dimension for Different Air Content Cement Mortar
Publisher: American Society of Civil Engineers
Abstract: The pore structure parameter of cement mortar with different air contents was tested through Automatic Mercury Porosimeter and Air Void Analysis of Hardened Concrete. A fractal model based on the thermodynamic method was ...