Results 41 to 50 of about 1,387 (177)

Overshooting of Hypoplastic Models With Intergranular Strain: Manifestation, Implications and Remedy

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 13, Page 5068-5091, September 2026.
ABSTRACT Intergranular strain extensions of hypoplasticity (IGS, ISA, GIS) are widely used to model small‐strain and cyclic soil behaviour. However, recent studies and our own simulations reveal that these models can exhibit stress overshooting not only under repeated small loading cycles but also during monotonic loading.
Jan Machaček, Merita Tafili, Carlos Grandas Tavera   +2 more
wiley   +1 more source

Consolidated Undrained Triaxial Compression Tests and Strength Criterion of Solidified Dredged Materials

Advances in Civil Engineering, 2018
Consolidated undrained triaxial compression tests were performed to investigate the shear strength behavior of the solidified dredged materials (SDM). The variation law of deviator stress and excess pore water pressure with the increase of the applied ...
Jianwen Ding, Xusong Feng, Yupeng Cao, Sen Qian, Feng Ji   +4 more
doaj   +1 more source

Modeling Biocemented Sands: Hypoplastic Model for MICP‐Based Ground Improvement

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 12, Page 4893-4912, 25 August 2026.
ABSTRACT Bio‐cementation offers a sustainable and low‐carbon alternative to conventional ground improvement methods, aligning with the growing demand for green geotechnical solutions. To enable reliable numerical simulation of bio‐cemented soil behavior in engineering applications, advanced constitutive models are required to account for the effects of
Merita Tafili, Hossam Abdellatif, Nazanin Irani, Torsten Wichtmann   +3 more
wiley   +1 more source

Undrained Cyclic Shear Strength of a Dense Niigata Sand

Soils and Foundations, 1984
ABSTRACT A large continuous sample of a saturated sand to a depth of about 10 m was successfully obtained in Niigata, Japan, by means of an in situ freezing method, and so-called undisturbed samples of the sand were obtained by a conventional triple-tube sampler.
YOSHIMI, YOSHIAKI, TOKIMATSU, KOHJI, KANEKO, OSAMU, MAKIHARA, YORIO   +3 more
openaire   +2 more sources

Undrained Shear Strength of Unsaturated Soils under Zero or Low Confining Pressures in the Vadose Zone

Vadose Zone Journal, 2018
In geotechnical engineering practice, many projects such as stability analysis of slopes or trenches and pavement design involve soils in vadose zones at shallow depths, where soils are under unsaturated conditions. For these types of projects, undrained
Won Taek Oh, Sai Vanapalli
doaj   +1 more source

Field and Experimental Observations Show Elevated Shear Strength of Active Margin Sediments Requires Processes Beyond Normal Consolidation

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Near‐seafloor marine sediments on active margins have been shown to be stronger than those on passive margins. However, the reasons for this are not fully understood. To investigate the role of intrinsic properties, we performed resedimentation and oedometer tests and measured undrained shear strength, grain size, mineralogy, and plasticity on
Bailey Fitzgerald, Derek E. Sawyer, Julia S. Reece, Wyatt Scott   +3 more
wiley   +1 more source

Variations of Undrained Shear Strength of EPB Mud and a Calculation Model Based on Consistency Index

Advances in Civil Engineering
If earth pressure balance (EPB) shields are used for tunneling in clayey soils, dispersants are often applied to condition the mud. For the conditioned mud, the undrained shear strength is a key indicator determining the shield tunneling operational ...
Pengfei Liu, Weicheng Tu, Qinxin Hu, Xiangshuai Song, Xintong Kong, Hanbiao Zhu   +5 more
doaj   +1 more source

Revisiting the Bjerrum's correction factor: Use of the liquidity index for assessing the effect of soil plasticity on undrained shear strength

Journal of Rock Mechanics and Geotechnical Engineering, 2015
The undrained shear strength (su) of fine-grained soils that can be measured in situ and in laboratory is one of the key geotechnical parameters. The unconfined compression test (UCT) is widely used in laboratory to measure this parameter due to its ...
Kamil Kayabali, Ozgur Akturk, Mustafa Fener, Orhan Dikmen, Furkan Hamza Harputlugil   +4 more
doaj   +1 more source

Effects of Pore Fluid Properties on Dynamic Slip in Sandstone‐Derived Fault Gouges From the Groningen Gas Reservoir

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract The dynamic slip behavior of faults is strongly influenced by the thermal and hydraulic properties of pore fluids, which control thermal pressurization (TP) during seismic slip. While previous experiments showed significant TP‐induced weakening in DI‐water‐saturated Groningen sandstone gouges, in situ fluids are brine or brine–gas mixtures ...
Chien‐Cheng Hung, André R. Niemeijer
wiley   +1 more source

Undrained Shear Strength of Overconsolidated Clay

, 2022
It has been known for a long time now that in soft and sensitive clays undrained failure occurs apparently before the full friction angle has been mobilized. The main object of this paper is to clarify the importance of deformations in the process of mobilizing undrained shear strength.
Aas, Gunnar, Lacasse, Suzanne
openaire   +1 more source