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RISHydromechanical Behaviors of Unsaturated Soils
Publisher: American Society of Civil Engineers
Abstract: In this paper, the hydromechanical behavior of unsaturated soils is explored. A constitutive model is proposed to describe the coupled hydraulic and mechanical behavior of unsaturated soils. The compression stiffness ...
Consolidation of a Double-Layered Compressible Foundation Partially Penetrated by Deep Mixed Columns
Publisher: American Society of Civil Engineers
Abstract: Deep mixed columns often penetrate partially into the soft soil as floating columns due to the depth of the end-bearing layer. Partially penetrated soft soil by columns and the underlying compressible soft soil create a ...
Vibration Reduction of Phononic-Like Crystal Metaconcrete Track Bed for Underground Railway
Publisher: ASCE
Abstract: Train vibrations can travel through the track, tunnel structure, and surrounding strata as well as into the structure of buildings near tunnels, where they can be radiated as low-frequency vibration waves and noises inside ...
Application and Vibration Reduction Properties of Prefabricated and Cast-in-Place Phononic-Like Crystal Polymer Concrete Track Bed in Subway Engineering
Publisher: American Society of Civil Engineers
Abstract: Subway plays an important role in building a three-dimensional urban transportation system and alleviating urban traffic congestion due to its advantages of land conservation, green environmental protection, safety and ...
Design and Study of Locally Resonant Wave-Impeding Barriers for Mitigating Environmental Vibrations on Adjacent Reinforced Concrete Buildings
Publisher: American Society of Civil Engineers
Abstract: The effect of environmental vibrations, such as those from traffic, mechanical operations, and building construction, on nearby buildings and infrastructure have become a serious issue. Novel approaches are needed to ...
Properties and Applications of Cement-Treated Sand-Expanded Polystyrene Bead Lightweight Fill
Publisher: American Society of Civil Engineers
Abstract: To mitigate settlement problems associated with bridge approach embankments over soft soil, a newly-developed lightweight material was proposed in this study. This lightweight material consisted of expanded polystyrene ...
A Revised Porous Media Model of Microbially Induced Carbonate Precipitation for Loess Solidification
Publisher: American Society of Civil Engineers
Abstract: Similar to sand solidification with microbially induced carbonate precipitation (MICP), the MICP technique can also be used to bond loess particles and improve the collapsibility of loess. However, existing theoretical ...
Sand Foreshore Slope Stability and Erosion Mitigation Based on Microbiota and Enzyme Mix–Induced Carbonate Precipitation
Publisher: ASCE
Abstract: To mitigate foreshore erosion, it is necessary to find effective and environmentally friendly interventions to stabilize slopes. In this study, the microbiota and enzyme mix–induced carbonate precipitation (MEMCP) method ...
Liquefaction Resistance of Biocemented Loess Soil
Publisher: ASCE
Abstract: Microbially induced calcite precipitation (MICP) is currently appraised to improve sandy soils, but only a few studies use it to solidify loess soil. MICP solidification tests and undrained cyclic triaxial tests were ...