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RISEffect of the Interaction of Fines and Granular Particles on Cyclic Liquefaction Resistance Using the Equivalent Granular Void Ratio and Capacity Energy Approach
Publisher: American Society of Civil Engineers
Abstract: A series of strain-controlled cyclic triaxial tests were performed on Firoozkuh sand‒silt mixtures with wide ranges of fines content (FC), relative density (Dr), and effective confining stress (
Residual Strength and Large-Deformation Potential of Loose Silty Sands
Publisher: American Society of Civil Engineers
Abstract: Laboratory and field evidence on residual shear strength, density, and penetration resistance of very loose, water-deposited silty sands and sandy silts capable of liquefying and developing large shear deformations is ...
Effects of Nanoclay on the Treatment of Core Material in Earth Dams
Publisher: American Society of Civil Engineers
Abstract: The main objective of this paper is to investigate the effect of nanoclay on the hydraulic conductivity of compacted clayey sands as an earth dam core material. Furthermore, other mechanical characteristics, such as shear ...
Mitigation of Liquefaction and Lateral Spreading by Biogas Method Using Shaking Table Tests and the Strain Energy Approach
Publisher: ASCE
Abstract: In this study, six shaking table tests were conducted to investigate the effects of two biomaterial solutions on liquefaction and lateral spreading in a sandy layer. The desaturation liquefaction mitigation method, which ...
Seismic Ground Surface Amplification Pattern due to the Presence of Twin Tunnels
Publisher: American Society of Civil Engineers
Abstract: In this study, a series of 1-g large shaking table tests were conducted on a soil layer with embedded twin tunnels to evaluate the acceleration distribution pattern at the ground surface. Furthermore, numerical analyses ...
Simplified Soil Liquefaction Assessment Based on Cumulative Kinetic Energy Density: Attenuation Law and Probabilistic Analysis
Publisher: American Society of Civil Engineers
Abstract: Liquefaction of sandy soils has led to catastrophic damage to structures during past earthquakes. Implementing simplified procedures such as the shear-stress method is the most prevalent current practice in assessing ...
Seismic Ground Surface Amplification Pattern due to the Presence of Twin Tunnels
Publisher: American Society of Civil Engineers
Abstract: In this study, a series of 1-g large shaking table tests were conducted on a soil layer with embedded twin tunnels to evaluate the acceleration distribution pattern at the ground surface. Furthermore, numerical analyses ...
Effect of Superstructure on the Dynamic Response of Nonconnected Piled Raft Foundation Using Centrifuge Modeling
Publisher: American Society of Civil Engineers
Abstract: In this research, a series of centrifuge modelings, including those with two different superstructures supported by a nonconnected piled raft foundation system (NPRS) in a dry sand bed, was conducted. The superstructures ...
Use of Vertical and Inclined Walls to Mitigate the Interaction of Reverse Faulting and Shallow Foundations: Centrifuge Tests and Numerical Simulation
Publisher: ASCE
Abstract: This research introduces a new effective approach, including a weak vertical wall (WVW) and a strong inclined wall (SIW) under a shallow foundation, to reduce the rotations caused by a fault rupture. A series of centrifuge ...