Search
CSV
RISCompressibility and Microstructure Evolution of Different Reconstituted Clays during 1D Compression
Publisher: ASCE
Abstract: The compressibility and microstructural changes of four types of reconstituted clays, Tianjin, Shanghai, kaolin, and montmorillonite clays, were studied to investigate the effects of mineral composition and clay content ...
Simplified Method for Calculating Consolidation Degree of Deep Mixed Column–Improved Soft Soils
Publisher: ASCE
Abstract: Deep mixing method has been widely used to improve soft soils by increasing bearing capacity, reducing total and differential settlements, and enhancing stability. Experimental and numerical studies have demonstrated that ...
Cyclic Behavior of Tianjin Soft Clay under Intermittent Combined-Frequency Cyclic Loading
Publisher: ASCE
Abstract: Subgrade soft clays are subjected to intermittent changeable-frequency cyclic loading and exhibit complex dynamic reactions compared with those under single-frequency cyclic loading. This research proposed a novel testing ...
Changes in the Permeability and Permeability Anisotropy of Reconstituted Clays under One-Dimensional Compression and the Corresponding Micromechanisms
Publisher: ASCE
Abstract: It is important to assess the permeability characteristics of clays in the prediction of the postconstruction settlement of geotechnical projects on clay grounds. The coefficient of permeability in the vertical direction ...
Ground Improvement of Dredged Fills with Two Improved Vacuum Preloading Methods: Case Study
Publisher: ASCE
Abstract: In a full-scale case study, the performance of two methods—the vacuum-surcharge preloading method (S-VP) and the air-booster vacuum preloading method (A-VP)—were compared in terms of the dredged soft soil ground of the ...
Ground Movement and Existing Tunnel Deformation Induced by Overlapped Tunneling
Publisher: ASCE
Abstract: Tunneling inevitably induces changes in soil stress and, hence, may adversely affect the surrounding ground and nearby existing tunnels. A model test and a series of numerical analyses were carried out to investigate the ...
Reinforcement Effect of the Stepped-Alternating Vacuum Preloading Method on Dredged Fills
Publisher: ASCE
Abstract: Dredged fills have been widely used as a filling material to meet the demand for land resources during land reclamation in coastal areas. When the conventional vacuum preloading (CVP) method is used to reinforce dredged ...
Pore–Water Salinity Effect on the Compression and Hydraulic Characteristics of Saturated Saline Soils
Publisher: American Society of Civil Engineers
Abstract: Changes in the pore-water environment have an obvious effect on the physical and mechanical properties of soil. Traditional consolidation theory has not considered the influence of the hydrochemical environment on the ...
Face Stability Analysis of Shield Tunnel in Cohesive–Frictional Soils Considering Soil Arch Evolution
Publisher: American Society of Civil Engineers
Abstract: Face instability models considering the gradual evolution of the soil arching effect and the characteristics of face instability under different cover-to-diameter ratios are proposed in this paper. The face instability ...
Dynamic Deformation Behavior and Cyclic Degradation of Ultrasoft Soil under Cyclic Loading
Publisher: American Society of Civil Engineers
Abstract: The dynamic deformation behavior of ultrasoft soil foundations is one of the major concerns in the field of geotechnical engineering. In this study, a series of cyclic triaxial tests with different vibration frequencies, ...