International Journal of Geomechanics: Recent submissions
Now showing items 2281-2300 of 4049
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Mechanics Criterion of Water Inrush from the Coal Floor under Influence of Fault and Its Engineering Application
(American Society of Civil Engineers, 2019)In order to investigate the impact of fault on the stability of the water-resisting layer of the coal floor, the critical water pressure formula of the water-resisting layer failure under the influence of fault is deduced ... -
Testing and Constitutive Modeling of Lime-Stabilized Collapsible Loess. II: Modeling and Validations
(American Society of Civil Engineers, 2019)Assessing the hydromechanical behavior of collapsible soils is always a challenging topic in an unsaturated soil mechanics context. Although numerous efforts have been made thus far to establish frameworks for explaining ... -
Estimation of Elastic Compliance Matrix of Rock Mass Containing Penny-Shaped Fractures
(American Society of Civil Engineers, 2019)In geotechnical engineering, fracture fillings or rough fracture surfaces often resist deformation and enhance the equivalent elastic moduli of fractured rock masses. In this study, the normal stiffness and shear stiffness ... -
Experimental Investigation and Constitutive Modeling of Grout–Sand Interface
(American Society of Civil Engineers, 2019)The shear stress–displacement behavior and shear-strength parameters of the interface between the cement grout nail and surrounding soil are important factors in the design and safety assessment of a soil-nailing system. ... -
Deformation of Granular Material under Continuous Rotation of Stress Principal Axes
(American Society of Civil Engineers, 2019)The mechanical response of granular material to the rotation of stress principal axes is an issue of both practical and theoretical importance in soil mechanics. This study used a two-dimensional (2D) discrete-element ... -
Experimental Investigation on Behavior of a Laterally Loaded Single Pile Located on Sloping Ground
(American Society of Civil Engineers, 2019)Laboratory model tests were conducted on an aluminum model pile embedded on a crest of soft clay. The slope angle and L/D ratio (L = embedded length, D = diameter of pile) were varied, and the pile was subjected to lateral ... -
Conversion Timing of Tunnel Excavation Methods in Upper-Soft and Lower-Hard Stratum Based on Displacement Direction Angle Theory: Case Study
(American Society of Civil Engineers, 2019)Zi-Zhi Tunnel is a shallow-buried tunnel, and its geological conditions are generally upper soft and lower hard. Therefore, the designed excavation methods are the center diaphragm method and the bench method. For the ... -
Catastrophe Instability Mechanism of the Pillar-Roof System in Gypsum Mines Due to the Influence of Relative Humidity
(American Society of Civil Engineers, 2019)In this study, a simplified mechanical model is proposed based on the failure characteristics of a gypsum pillar–roof system obtained through in situ investigation. Then, a cusp catastrophe model for the gypsum pillar–roof ... -
Liquefaction-Induced Buckling Failure of Group-Pile Foundation and Countermeasure by Partial Ground Improvement
(American Society of Civil Engineers, 2019)Pile foundations may lose their lateral resistance in earthquake-induced liquefaction and may fail not only by bending and shear forces but also buckling. Although research has been done on the buckling of pile foundations, ... -
Determining Aggregate Grain Size Using Discrete-Element Models of Sieve Analysis
(American Society of Civil Engineers, 2019)The grain size of aggregate particles is crucial to the mixture gradation of discrete-element (DE) models when realistic aggregate shapes are simulated. The objective of this study was to answer the question of how to ... -
Three-Dimensional Slope Stability Analysis Incorporating Coupled Effects of Pile Reinforcement and Reservoir Drawdown
(American Society of Civil Engineers, 2019)In pile-reinforced dams and bank slopes, the antislide effect of piles and drawdown of reservoirs are two aspects that could significantly affect the slope stability. However, existing studies have incorporated these two ... -
New Approach to Group Pile Load Estimation
(American Society of Civil Engineers, 2019)Current literature lacks an analytical method for estimating pile load distribution due to the statically indeterminate nature of pile groups. In practice, such estimations are accomplished by finite-element-based analyses ... -
Numerical Simulation of Steel Sheet Pile Support Structures in Foundation Pit Excavation
(American Society of Civil Engineers, 2019)U-section steel sheet piles are widely used as support structures in bridge foundation pit excavation. Because of the reduced modulus action (RMA) effect of U-section steel sheet piles, it is difficult to balance structural ... -
Experimental Investigation and Modeling of Pullout Response of Soil Nails in Cohesionless Medium
(American Society of Civil Engineers, 2019)Soil nailing is a popular in situ reinforcement technique that is widely used to stabilize unstable slopes and vertical faces of excavations and tunnels. The pullout capacity of soil nails is a governing design parameter ... -
Cracking Performance of an Operational Tunnel Lining Due to Local Construction Defects
(American Society of Civil Engineers, 2019)Local defects, such as surround cavities and insufficient thickness of the tunnel lining due to imperfect construction, will lead to local discontinuity in the ground–lining interaction. This study investigated the mechanical ... -
Mechanics of the Interface Interaction between Hemp Fibers and Compacted Clay
(American Society of Civil Engineers, 2019)A drive is currently underway in the construction industry to promote the use of in situ soils (including clays) that are reinforced with natural fibers. This effort is primarily driven by sustainability considerations and ... -
Analytical Solutions to Interaction Factors of Two Unequal Length Piles under Horizontal Loads
(American Society of Civil Engineers, 2019)The technical note presents analytical solutions to interaction factors of two unequal length piles (ULPs) under horizontal loads by using the fictitious pile method. The bending moments along the fictitious piles and the ... -
Finite-Element Limit Analysis of Strip and Circular Skirted Footings on Sand
(American Society of Civil Engineers, 2019)The lower- and upper-bound theorems of the limit analysis have been used in conjunction with finite elements and second-order cone programming (SOCP) for determining the bearing capacity of strip and circular skirted ... -
Three-Dimensional Simulations of Plate Anchor Pullout in Granular Materials
(American Society of Civil Engineers, 2019)Plate anchors are embedded into the ocean floor to provide holding capacity for offshore structures. Anchor holding capacity is a function of both the anchor and soil properties. Although plate anchors have been widely ... -
Influence of Hardening and Softening on Limit Pressure of Cylindrical Cavity Expansion
(American Society of Civil Engineers, 2019)This paper presents a large strain solution for the problem of cylindrical cavity expansion embedded in hardening–softening, non-associative Mohr-Coulomb material. The solution is obtained by transforming the problem from ...