Showing papers in "Geotechnique in 2021"
University of California, Davis1, Washington State University2, New Mexico State University3, Georgia Institute of Technology4, Norwegian Geotechnical Institute5, University of Illinois at Urbana–Champaign6, California State University, Sacramento7, Istituto Italiano di Tecnologia8, National Science Foundation9, University of California, Berkeley10, University of New Hampshire11, University of California, San Diego12, New York City College of Technology13, Northwestern University14, University of California, Santa Barbara15, Arizona State University16, University of Massachusetts Amherst17, Louisiana State University18, South Dakota School of Mines and Technology19, Indian Institute of Science20, Florida Atlantic University21, American University of Beirut22, Texas A&M University23, Aarhus University24, University of Washington25, University of Western Ontario26, National Autonomous University of Mexico27, University of Grenoble28, University of Natural Resources and Life Sciences, Vienna29, Case Western Reserve University30, Iowa State University31
TL;DR: The 1st International Workshop on Bio-Inspired Geotechnics as mentioned in this paper was held in 2019 in Pacific Grove, California, USA, with a focus on bio-inspired geotechnical applications.
Abstract: This paper is the product of the 1st International Workshop on Bio-Inspired Geotechnics, held in May 2019 in Pacific Grove, California, USA. The 1st International Workshop on Bio-inspired Geotechnics was funded in part by the US National Science Foundation under Grant No. CMMI-1821029 and the NSF-funded Center for Biomediated and Bioinspired Geotechnics (CBBG) under Grant No. EEC-1449501. Any opinions, findings and conclusions or recommendations expressed in these materials are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.
54 citations
TL;DR: In this paper, the bearing capacity of shallow foundations may decrease when located near slopes, particularly under seismic conditions, and there is limited work that isolates the destabilising influences o...
Abstract: The bearing capacity of shallow foundations may decrease when located near slopes, particularly under seismic conditions. However, there is limited work that isolates the destabilising influences o...
52 citations
TL;DR: In this article, a discrete-element method is presented for simulation of mini-triaxial tests on a sand with realistically shaped grains, comparing the results with physical experiments at multiple length scal...
Abstract: This paper presents a discrete-element method simulation of mini-triaxial tests on a sand with realistically shaped grains. It compares the results with physical experiments at multiple length scal...
43 citations
TL;DR: A critical state testing round robin program was carried out on sandy silt gold tailings in this paper, which involved 15 laboratories around the world testing a silt tailings to infer its critical state.
Abstract: A critical state testing round robin programme was carried out on sandy silt gold tailings. This involved 15 laboratories around the world testing a sandy silt tailings to infer its critical state ...
37 citations
TL;DR: In this paper, the mechanism of thermal pressurization of pore water in the sliding surface is described and applied to simple but common sliding geometries, and criteria to decide if rapid motion is likely to occur in practice are given.
Abstract: The velocity and motion of landslides, once equilibrium is lost, is necessary information for the estimation of the potential damage. The Lecture will describe concepts and modelling techniques addressing this problem. Firstly, the physical phenomena and deformation mechanisms leading to fast sliding velocities will be explored. The mechanism of thermal pressurization of pore water in the sliding surface will be described and applied to simple but common sliding geometries. Criteria to decide if rapid motion is likely to occur in practice will be given.
32 citations
TL;DR: In this paper, the authors focused on the assessment of seismic fragility curves for circular tunnels under moderate to severe earthquakes with the aim of improving the reliability of the risk assessment of circular tunnels.
Abstract: The paper is focused on the assessment of seismic fragility curves for circular tunnels under moderate to severe earthquakes with the aim of improving the reliability of the risk assessment of unde...
31 citations
TL;DR: In this article, the authors considered a spatially variable ground as a uniform medium with appropriately reduced strength, and various strength reduction factors have been proposed for cement-treated ground.
Abstract: Spatially variable cement-treated ground can be considered, in design, as a uniform medium with appropriately reduced strength. Various strength reduction factors have been proposed for cement-trea...
29 citations
TL;DR: In this article, the existence of cracks can negatively impact both the mechanical and hydraulic properties of soil, and accurate acquisition of soil crack nets is required for soil desiccation cracking.
Abstract: Soil desiccation cracking is a common natural phenomenon. The existence of cracks can negatively impact both the mechanical and hydraulic properties of soil. Accurate acquisition of soil crack netw...
29 citations
TL;DR: Tangential flow-induced interface erosion poses a major threat to a wide variety of engineering structures, such as earth-filled embankment dams, and oil and gas-producing wells as mentioned in this paper.
Abstract: Tangential flow-induced interface erosion poses a major threat to a wide variety of engineering structures, such as earth-filled embankment dams, and oil- and gas-producing wells. This study explor...
27 citations
TL;DR: The hydraulic behavior of compacted smectite-rich clays is of practical interest in geological disposal of high-level nuclear waste, as the buffer component of the engineered barrier system as discussed by the authors.
Abstract: Hydraulic behaviour of compacted smectite-rich clays is of practical interest in geological disposal of high-level nuclear waste, as the buffer component of the engineered barrier system. Despite s...
27 citations
TL;DR: In this article, serviceability criteria for offshore monopiles include the estimation of long-term, permanent tilt under repeated operational loads, and experimental analysis methods are used to evaluate the performance of these criteria.
Abstract: Serviceability criteria for offshore monopiles include the estimation of long-term, permanent tilt under repeated operational loads. In the lack of well-established analysis methods, experimental a...
TL;DR: The discrete element method (DEM) has gained popularity for developing a qualitative understanding of soil behaviour under a critical state soil mechanics (CSSM) framework as mentioned in this paper, and it has been used extensively for soil behavior analysis.
Abstract: The discrete-element method (DEM) has gained popularity for developing a qualitative understanding of soil behaviour under a critical state soil mechanics (CSSM) framework. Most studies with a thre...
TL;DR: Deterioration of earthworks and the resultant implications for serviceability and increased occurrence of failures have a significant negative impact on transport networks both in the UK and in the US as discussed by the authors.
Abstract: Deterioration of earthworks and the resultant implications for serviceability and increased occurrence of failures have a significant negative impact on transport networks both in the UK and intern...
TL;DR: In this article, a new analytical model is proposed to estimate the peak impact pressure of debris flow exerted on a rigid barrier, which consists of two terms, p 1ρ0gh0 + 0·5ρ0u02, accounting for static and dynamic impact.
Abstract: A new analytical model is proposed to estimate the peak impact pressure of debris flow exerted on a rigid barrier. The new model consists of two terms, p = α1ρ0gh0 + 0·5ρ0u02, accounting for static...
TL;DR: In this paper, the discrete element method (DEM) was used to simulate constant-volume (undrained) triaxial compression tests for coarse particles (sand) mixed with non-plastic fine.
Abstract: The discrete-element method (DEM) was used to simulate constant-volume (undrained) triaxial compression tests for coarse particles (sand) mixed with non-plastic fines. Simulations were performed on...
TL;DR: In this paper, a constitutive model for anisotropic clays is proposed and evaluated under monotonic and cyclic loading, and a hypoplastic model is proposed for the clays.
Abstract: In the present work, a constitutive model for anisotropic clays is proposed and evaluated under monotonic and cyclic loading. To that end, the hypoplastic model for anisotropic clays by Masin is ex...
TL;DR: In this paper, a series of monotonic and cyclic triaxial tests were performed on bio-desaturated sand for mitigation of the liquefaction hazard of sand.
Abstract: Microbial (or bio-) desaturation is a new method for mitigation of the liquefaction hazard of sand. In this paper, a series of monotonic and cyclic triaxial tests was performed on bio-desaturated s...
TL;DR: This article used synchrotron X-ray tomography to quantify the role of the particle shape on the interaction between collective comminution and individual grain fracture in Two Sands (subrounded Ottawa).
Abstract: This work uses synchrotron X-ray tomography to quantify the role of the particle shape on the interaction between collective comminution and individual grain fracture Two sands (subrounded Ottawa
TL;DR: In this article, a series of physical modelling tests performed to measure the resistance developing during lateral dragging of a rigid pipe buried in loose to very dense dry sand is presented, and the results show that the pipe is able to resist lateral dragging in very dense sand.
Abstract: This paper presents a series of physical modelling tests performed to measure the resistance developing during lateral dragging of a rigid pipe buried in loose to very dense dry sand. The experimen...
TL;DR: Both the solid and fluid phases in a debris flow vitally influence the impact dynamics against a rigid barrier, but previous numerical and analytical models commonly adopt an equivalent fluid model.
Abstract: Both the solid and fluid phases in a debris flow vitally influence the impact dynamics against a rigid barrier. However, previous numerical and analytical models commonly adopt an equivalent fluid ...
TL;DR: The behaviour of gap-graded granular materials does not always conform to established framings as mentioned in this paper, i.e., mixtures of coarse and cohesionless finer grains with measurable differences in particle size.
Abstract: The behaviour of gap-graded granular materials – that is, mixtures of coarse and cohesionless finer grains with measurable differences in particle size – does not always conform to established fram...
TL;DR: In this article, the hydromechanical behavior of a steep, forested, instrumented slope during an artificial rainfall event was interpreted, which triggered a shallow slope failure 15'h after rainfall initialization.
Abstract: This paper interprets the hydromechanical behaviour of a steep, forested, instrumented slope during an artificial rainfall event, which triggered a shallow slope failure 15 h after rainfall initiat...
TL;DR: In this article, the static and seismic values of bearing capacity factors for shallow strip foundations adjacent to slopes have been evaluated using the method of characteristics, accounting, through accounting for the bearing characteristics.
Abstract: In this paper the static and seismic values of bearing capacity factors for shallow strip foundations adjacent to slopes have been evaluated using the method of characteristics, accounting, through...
TL;DR: The use of the Casagrande-style plasticity chart to classify fine-grained soils using Atterberg's liquid and plastic limits is ubiquitous in geotechnical engineering as discussed by the authors.
Abstract: Use of the Casagrande-style plasticity chart to classify fine-grained soils using Atterberg's liquid and plastic limits is ubiquitous in geotechnical engineering. This classification is dependent o...
TL;DR: In this paper, soil arching is an important component of predicting soil behavior in cases such as the progressive displacements above sinkholes and when predicting loads on buried structures, wher...
Abstract: Understanding soil arching is an important component of predicting soil behaviour in cases such as the progressive displacements above sinkholes and when predicting loads on buried structures, wher...
TL;DR: In this article, a numerical model based on the theories of the conservation of mass, momentum and energy was proposed to describe the long-term coupled behaviour of landfilled municipal solid waste (MSW).
Abstract: To describe the long-term coupled behaviour of landfilled municipal solid waste (MSW), this paper proposes a numerical model based on the theories of the conservation of mass, momentum and energy o...
TL;DR: Soil bioengineering using vegetation is an environmentally friendly technique for slope stabilisation in this paper, where plants stabilise slopes by way of mechanical reinforcement (through root anchorage) and hydrol...
Abstract: Soil bioengineering using vegetation is an environmentally friendly technique for slope stabilisation. Plants stabilise slopes by way of mechanical reinforcement (through root anchorage) and hydrol...
TL;DR: In this paper, geotechnical research is being devoted to foundation optimisation for large-diameter monopiles, with the offshore wind industry rapidly expanding worldwide, and the analysis and desi...
Abstract: With the offshore wind industry rapidly expanding worldwide, geotechnical research is being devoted to foundation optimisation – most intensively for large-diameter monopiles. The analysis and desi...
TL;DR: In this paper, the applicability of using crystalline silica-rich material as a co-additive with calcium-based stabilisers to treat sulfate-rich expansive s...
Abstract: A research study was designed and conducted to evaluate the applicability of using crystalline silica-rich material as a co-additive with calcium-based stabilisers to treat sulfate-rich expansive s...
TL;DR: In this article, the authors show that fiber orientation in fiber-reinforced sand (FRS) is highly anisotropic due to compaction during sample preparation or field construction, which makes the mechanical behaviour of FRS, such as strengt...
Abstract: Fibre orientation in fibre-reinforced sand (FRS) is highly anisotropic due to compaction during sample preparation or field construction. This makes the mechanical behaviour of FRS, such as strengt...