International Journal of Geomechanics: Recent submissions
Now showing items 1321-1340 of 4049
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Correction Factor on Dynamic Force in a Marsh Funnel Test for Tunneling
(ASCE, 2022/07/06)This paper presents an improvement on a previous model for predicting the Marsh funnel (MF) test that is used in slurry shield tunneling for evaluating the rheological properties of bentonite slurries. The improvement ... -
Failure Characteristics and Failure Process Investigation of Fine-Grained Sandstone under Impact Load by Ultrahigh Speed DIC and SEM Techniques
(ASCE, 2022/05/10)The dynamic failure characteristics and fracture process of brittle materials such as rock involves a complex crack propagation process, the underlying mechanics of which is not yet fully understood. At present, the ... -
A New Strength Criterion for Frozen Soil Considering Pore Ice Content
(ASCE, 2022/05/10)Pore ice content is crucial in evaluating the mechanical properties of frozen soils. Existing strength criterion models are usually empirical and ignore the influence of pore ice content. By assuming that the critical state ... -
Exploring Effect of Microproperties on Shear Strength of Rock Joints through Physical and Numerical Modeling
(ASCE, 2022/05/26)Understanding the shear strength and failure mechanism of a rock joint is essential in rock engineering. This study performed a series of direct shear tests and discrete element modelings on artificial joint specimens to ... -
Ground Movement and Existing Tunnel Deformation Induced by Overlapped Tunneling
(ASCE, 2022/05/06)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 ... -
Target Reliability-Based Design of Embankments Using Biopolymer-Modified Cohesive Soil
(ASCE, 2022/05/26)This study evaluates the unconfined compressive strength (UCS) behavior of biopolymer-modified cohesive soil exposed to natural field conditions. Two biopolymers, xanthan gum (G1) and guar gum (G2), at dosages of 0.5, 1, ... -
DEM-Based Study on the Mechanical Behaviors of Pore-Filling MHBS under Drained True Triaxial Conditions Varying the Intermediate Stress Ratio of Constant Mean Effective Stresses
(ASCE, 2022/06/24)Methane hydrate-bearing soils (MHBS) are natural soil deposits that contain methane hydrate (MH) in the pores and have attracted a huge amount of attention as alternative energy to study mechanical properties for realizing ... -
Effect of Excavation Disturbance on Clayey Soil Mechanical Properties and Pile Capacity
(ASCE, 2022/05/06)Excavation causes disturbance to the surrounding soil, affecting the soil’s mechanical properties. This study presents a case study to investigate the effect of excavation disturbance on soil properties and pile capacity ... -
Study on the Effect of Loading Method on Mechanical Behavior of Rockbolt Based on DEM Modeling
(ASCE, 2022/05/10)Fully grouted rockbolt is a form of reinforcement commonly used in underground projects. Its mechanical behavior is of vital importance to enhancing the stability of surrounding rock masses. To investigate the effect of ... -
Effect of Rainfall Infiltration on the Stability of Compacted Embankments
(ASCE, 2022/05/06)Rainfall infiltration causes the collapse of unsaturated embankments due to loss of suction. In this paper, the Barcelona Basic Model (BBM), a constitutive model developed for unsaturated soils, was implemented in Fast ... -
Rock Creep Deformation Triggered by Dynamic Disturbance: Numerical Simulation
(ASCE, 2022/05/06)During underground mining excavation, dynamic disturbances (e.g., blasting) may accelerate rock creeping and induce unstable failure. It is crucial to properly quantify the impact of dynamic disturbances on creeping behavior ... -
Failure Mechanism of Helical Anchors in Sand by Centrifuge Modeling and PIV
(ASCE, 2022/05/26)Helical anchors are receiving more attention these days due to their economic and environmental advantages. However, the behavior of these structures requires further investigation. One of the critical areas requiring ... -
A Concrete-Filled Steel Tubular Yieldable Support for a Tunnel within Deep Soft Rock
(ASCE, 2022/05/04)A concrete-filled steel tubular (CFT) yieldable support is proposed as a new passive support system in deep tunnels to improve the stability of soft rock mass, which consists of a CFT arc, a porous metal connector, and a ... -
Effect of OCR and Pile Diameter on Load Movement Response of Piles Embedded in Clay over Time
(ASCE, 2022/05/03)The main causes of soil setup effects on pile response are generation of excess pore water pressure (EPWP) due to installation of prefabricated piles in saturated soils and subsequent dissipation of EPWP and, hence, stress ... -
A Numerical Investigation of Laterally Loaded Steel Fin Pile Foundation in Sand
(ASCE, 2022/05/06)Pile foundations are often subjected to lateral loadings. By adding steel plates (fins) to the side of the pile, steel fin pile foundations (SFPFs) can improve the lateral load capacity of piles. Existing numerical studies ... -
Sodium Sulfate Attack–Induced Deterioration of the Mechanical Characteristics and Its Deterioration Mechanism of Sandstone with Mode-I Crack under Dry–Wet Cycles
(ASCE, 2022/05/06)With the actual environments of the joint rock in the bank slope of the Three Gorge Reservoir region (in China) as the background and considering the research concept that the effect of sodium sulfates and the dry–wet (D–W) ... -
Disturbed State Concept–Based Model for the Uniaxial Strain-Softening Behavior of Fiber-Reinforced Soil
(ASCE, 2022/05/03)A uniaxial strain-softening constitutive model for fiber-reinforced soils is developed based on the disturbed state concept (DSC). The response in the relatively intact state is assumed to satisfy the Duncan–Chang model ... -
Influence of Unsaturated Hydraulic Properties on Transient Seepage and Stability Analysis of an Earthen Dam
(ASCE, 2022/05/10)Traditionally, the seepage through embankments and other geotechnical structures is estimated using the hydraulic properties of saturated soil. In most cases, the soil is not fully saturated, and the use of saturated soil ... -
3D Numerical Analysis of a Single Footing on Soft Soil Reinforced by Rigid Inclusions
(ASCE, 2022/05/26)In the absence of high-quality soils, the rigid inclusion reinforcement technique has been extensively used in geotechnical engineering practice to meet the serviceability requirements of construction projects. This article ... -
Equivalent Elastic Model and Deformation Characteristics of X-Type Cross-Jointed Rock Mass
(ASCE, 2022/05/06)The conjugated X-type cross joints are one of the main forms of rock mass in nature. It is a composite geological material with macrodefects like joint fissures, and microdefects like microjoints and microvoids. From the ...