International Journal of Geomechanics: Recent submissions
Now showing items 1561-1580 of 4049
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A Generalized Analytical Model for Mechanical Responses of Rock during Multiple-Tunnel Excavation in Viscoelastic Semi-Infinite Ground
(ASCE, 11/1/2021)The excavation of multiple tunnels at shallow depths has become increasingly common. The tunnel spacings, arrangements, buried depths, and excavation sequences significantly affect the ground responses. In addition, rock ... -
Treatment and Recovery of Clay Soils Using Geopolymerization Method
(ASCE, 11/1/2021)This paper focuses on the effectiveness in the improvement of clay soils of using geopolymers of fly ash (FA), metakaolin (MK), or blast furnace slag, activated by an alkaline solution of sodium hydroxide (NaOH), sodium ... -
Numerical Investigation of Ground-Borne Vibration Mitigation by Infilled Trenches in a Poroelastic Half-Space Considering the Moving Water Table
(ASCE, 10/1/2021)The moving water table would vary soil layering and may significantly affect the isolation efficiency of wave barriers. A two-dimensional finite-element model is then developed using COMSOL to study the influence of the ... -
Large-Scale Instrumented Triaxial Setup for Investigating the Response of Soft Clay Reinforced with Sand Column Groups
(ASCE, 10/1/2021)Granular columns are widely used as a soil improvement solution adopted in the case of soft clays in an effort to increase their bearing capacity and stiffness. Granular columns, whether sand drains or gravel columns, are ... -
Analysis of Shaft Resistance Setup of Driven Piles in Soft Sensitive Clays Considering Soil Consolidation and Creep
(ASCE, 11/1/2021)Soft sensitive clays around a pile shaft experience destructuration during pile installation, excess pore pressure (u) dissipation, and creep after pile installation, but their influence on pile shaft resistance is difficult ... -
Experimental Investigation on Mass Loss Characteristics of Broken Rocks with Discontinuous Gradation
(ASCE, 9/1/2021)This study mainly focuses on the transport process of broken rocks in geological fractures, faults, and karst conduits. Because previous research mainly focused on the influencing factors of adverse geological conditions, ... -
Analysis of Grout Diffusion of Postgrouting Pile Considering the Time-Dependent Behavior of Grout Viscosity
(ASCE, 11/1/2021)To get an accurate bearing capacity of a postgrouting pile, the range of grout diffusion should be considered in practice. Considering the time-dependent behavior of power-law cement grout viscosity, calculation methods ... -
Euler–Bernoulli Pile Element for Nonlinear Buckling Analysis of Single Piles in Slope
(ASCE, 9/1/2021)Piles are sometimes unavoidably embedded in slopes for supporting buildings on hills. In contrast to a pile on a horizontal ground, a pile in slope is acted on by additional sliding force from the slope, impairing its ... -
Analytical Solutions for Consolidation of Unsaturated Soil with Time-Dependent Boundary Conditions
(ASCE, 9/1/2021)Unsaturated soil is widely distributed in geotechnical projects, of which the consolidation and settlement are of great importance. Based on the consolidation theory of unsaturated soil, proposed by Fredlund and Hansan, ... -
Greenfield Test and Numerical Study on Grouting in Silty Clay to Control Horizontal Displacement of Underground Facilities
(ASCE, 10/1/2021)Compensation grouting has been widely applied for the vertical deformation control of constructed facilities. However, few studies have been conducted on the horizontal displacement control of underground facilities using ... -
Calculation Method for Ultimate Bearing Capacity of Meadow Soil Foundation
(ASCE, 9/1/2021)Meadow soil is rich in fresh plant roots and differs considerably from general soft soil in terms of its engineering characteristics. Previous studies have shown that reticulated roots can produce a reinforcement effect ... -
Analytical Solution to Ultimate Lateral Pressure on a Vertical Plate in Undrained Soil
(ASCE, 9/1/2021)For a vertical plate emerging on the surface of undrained cohesive soil, the adhesion between the plate and soil considerably impacts the lateral soil pressure on it. However, very few closed-form solutions have been ... -
Warning Index Associated with Rock Burst in Deeply Buried Tunnels
(ASCE, 11/1/2021)Rock bursts are disastrous when occurring during the construction of tunnels in a deep underground rock mass, and they occur under two key conditions: energy release from surrounding rocks; and fracture propagation. Based ... -
System Reliability Analysis of Soil Nail Walls against Facing Failures
(ASCE, 9/1/2021)The facing design of soil nail walls against flexure, punching shear, and headed-stud tensile limit states has been rarely studied within the reliability-based design framework. This study presents reliability analyses of ... -
Application of the Taguchi Method to Enhance Bearing Capacity in Geotechnical Engineering: Case Studies
(ASCE, 9/1/2021)In this study, the Taguchi design of experiments (TDOE) is employed to enhance the bearing capacity of geotechnical structures. To this end, two different case studies, including tapered helical piles as a novel kind of ... -
Theoretical Analysis of Postconstruction Load-Carrying Capacity of a Cast-in-Place Pile Installed in <i>K</i><sub>0</sub>-Consolidated Anisotropic Clayey Soil
(ASCE, 9/1/2021)This paper analytically investigates the postconstruction load-carrying capacity of a cast-in-place pile in clayey soil. The stress release induced by borehole excavation, the slurry supporting effects, and the dissipation ... -
Role of Particle Breakage in Rockfill Materials: Investigated by Using Combined SBFEM/DEM with Two Different Breakage Models
(ASCE, 9/1/2021)This research will investigate the numerical simulation of rockfill materials using a combined scaled boundary finite–discrete element method (SBFEM/DEM) with two breakage models. Two rockfill specimens that are subjected ... -
Time-Dependent Solutions for Lined Circular Tunnels Considering Rockbolts Reinforcement and Face Advancement Effects
(ASCE, 10/1/2021)During deep excavation in weak rock masses, the time-dependent deformation of the rock and longitudinal advancement process have significant influences on the tunnel performance. Accordingly, a combined support system ... -
Three-Dimensional Hydraulic Fracture Simulation with Hydromechanical Coupled-Element Partition Method
(ASCE, 9/1/2021)The numerical simulation of a 3D complex reservoir has been an important but difficult problem. One of the biggest challenges is how to deal with the large number of natural fractures with consideration of hydromechanical ... -
Geogrid Reinforcement for Stiffness Improvement of Railway Track Formation Over Clay Subgrade
(ASCE, 9/1/2021)Weak subgrade condition generally develops large settlements in ballasted tracks, leading to adverse performance. To ameliorate such problems, a commonly adopted technique is to provide a thick cushion of granular ...