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Failure Mechanism and Active Earth Pressure of Narrow Backfills behind Retaining Structures Rotating about the Base
Publisher: ASCE
Abstract: A series of model tests were conducted to simulate the active failure of narrow cohesionless backfills behind retaining walls rotating about the base (RB mode). The tests aimed to investigate the effect of wall displacement ...
Active Earth Pressure on the Rigid Support Structures of Excavations Parallel to Tunnel Construction
Publisher: American Society of Civil Engineers
Abstract: The failure mode of the soil behind the rigid support structure of excavations parallel to tunneling was simulated using the adaptive finite-element limit analysis method. This study showed the effects of tunnel diameter, ...
Determination of Optimal Water Resource Management through a Fuzzy Multiobjective Programming and Genetic Algorithm: Case Study in Kinman, Taiwan
Publisher: American Society of Civil Engineers
Abstract: Given the increase in demands on water resources, optimal management policy has been sought for minimum resource utilities and maximum environmental benefits. Since the water resource system is complicated and has many ...
Enhancement of Aromatic Hydrocarbon Biodegradation by Toluene and Naphthalene Degrading Bacteria Obtained from Lake Sediment: The Effects of Cosubstrates and Cocultures
Publisher: American Society of Civil Engineers
Abstract: Toluene and naphthalene degrading (ND) bacteria, obtained from contaminated lake sediment, were used to degrade both monoaromatics and polycyclic aromatic hydrocarbons (PAHs) and the effects of cosubstrates and cocultures ...
Mathematical Models of Distribution of Sediment Concentration
Publisher: American Society of Civil Engineers
Abstract: Mathematical models have been developed that can completely describe the distribution of sediment concentration from the channel bed to the water surface. These models can be used to estimate the mean (depth-averaged) ...
Fast and Minimally Intrusive Method for Measuring Tidal-Stream Discharge
Publisher: American Society of Civil Engineers
Abstract: The measurement and computation of discharge measurement in tidal streams using a fast and minimally intrusive method is developed. The discharge of tidal streams is highly unsteady because of influences from ocean tides ...
Freeze–Thaw Impact on Sandy Clay in Artificial Frozen Walls: An Investigation of Shear Strength and Pore-Size Distribution
Publisher: ASCE
Abstract: Artificial ground freezing construction is an effective and widely adopted method for reinforcement in constructing subway tunnels. Regarding sandy clay in artificial frozen walls, changes in its microstructure can affect ...