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RISMonotonic Behavior of Mississippi River Valley Silt in Triaxial Compression
Publisher: American Society of Civil Engineers
Abstract: The static behavior of Mississippi River Valley silt was characterized using triaxial compression testing. Silt specimens, especially overconsolidated ones, showed dilation behavior. There was no unique critical state among ...
Compressibility Characteristics of Low-Plasticity Silt before and after Liquefaction
Publisher: American Society of Civil Engineers
Abstract: Low-plasticity silt is known to have a potential to liquefy during earthquakes. The compressibility characteristics could change before and after a dynamic event that produces liquefaction. This research investigates the ...
Effect of Plasticity on Shear Behavior of Low-Plasticity Fine-Grained Soil
Publisher: American Society of Civil Engineers
Effect of Initial Consolidation Condition on Postcyclic Undrained Monotonic Shear Behavior of Mississippi River Valley Silt
Publisher: American Society of Civil Engineers
Abstract: The postcyclic undrained monotonic shear behavior of Mississippi River Valley (MRV) silt is investigated by carrying out triaxial tests under various initial consolidation conditions. Results show that the variation of ...
Effect of Previous Cyclic Shearing on Liquefaction Resistance of Mississippi River Valley Silt
Publisher: American Society of Civil Engineers
Abstract: Liquefied silty soil can experience repeated liquefaction as a result of aftershocks or other subsequent earthquake events, which can be considered to be previous cyclic loading. The effect of previous cyclic loading on ...
Analytical Study of the Permeability of a Foam-Conditioned Soil
Publisher: ASCE
Abstract: It is important to control the permeability of a mixture of foam and solid in many fields such as civil engineering, petroleum engineering, and material processing. An analytical model to estimate the coefficient of ...
A Novel Index to Evaluate the Workability of Conditioned Coarse-Grained Soil for EPB Shield Tunnelling
Publisher: ASCE
Abstract: Although slump testing has been used extensively to assess the workability of conditioned soil in shield-driven tunnelling, this traditional evaluation method still requires many subjective descriptions. This study developed ...
Criteria for Clogging Potential in Coarse-Grained Strata during Shield Tunneling
Publisher: American Society of Civil Engineers
Abstract: Engineering practice has shown that shield machines may become clogged in coarse-grained strata. The criteria for determining the clogging potential in coarse-grained strata were proposed. With the surface area ratio of ...
Soil Conditioning for EPB Shield Tunneling in Argillaceous Siltstone with High Content of Clay Minerals: Case Study
Publisher: American Society of Civil Engineers
Abstract: Soil clogging occurred in the early construction stage of Nanchang Metro Line 1, China, when an earth balance pressure (EPB) shield passed through the argillaceous siltstone with a total content of clay minerals of 40.5%. ...
Numerical Examination of EPB Shield Tunneling–Induced Responses at Various Discharge Ratios
Publisher: American Society of Civil Engineers
Abstract: This study investigated earth pressure balance (EPB) shield tunneling–induced responses in terms of muck pressure, machine parameters, and surface settlements using an efficient numerical scheme that couples PFC3D and ...