Mechanical Properties and Constitutive Model of Artificially Frozen Sandy Soils Under Different Intermediate Principal Stresses DOI Creative Commons
Kun Huang,

Qinyong Ma,

Guojun Cai

и другие.

Research Square (Research Square), Год журнала: 2023, Номер unknown

Опубликована: Дек. 13, 2023

Abstract Triaxial compression tests were conducted on frozen sandy soils under a constant minimum principal stress (σ3 = 1.6 MPa) and various intermediate stresses (σ2 1.6, 3.4, 5.2, 7.0, 8.8, 9.8 MPa). The purpose of the research was to investigate influence (σ2) characteristic levels deformation characteristics. test results obtained demonstrated that crack damage failure initially increase then decrease with an in σ2. However, initiation exhibits initial up specific value, after which it stabilizes. difference between σ2 σ3 directions increased increasing From perspective propagation, mechanism strength is discussed. revealed using superposition principle Poisson’s effect. Finally, constitutive model based Weibull distribution Drucker-Prager criterion can accurately represent stress-strain relationships conditions.

Язык: Английский

Impact of plane strain state on the long-term cyclic behavior of sand under true triaxial tests DOI
Shaoheng He, Zhi Ding, Mao‐Xin Wang

и другие.

Transportation Geotechnics, Год журнала: 2025, Номер unknown, С. 101512 - 101512

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

0
The mechanical properties of Yellow River floodplain silt considering the influence of intermediate principal stress DOI

Yiyuan Qin,

Mengyao Li,

Yonghui Li

и другие.

Marine Georesources and Geotechnology, Год журнала: 2025, Номер unknown, С. 1 - 14

Опубликована: Март 25, 2025

This study reveals the mechanical behavior of silt in Yellow River floodplain under 3D stress. A true triaxial apparatus was used to conduct consolidated drained shear tests different intermediate principal stress coefficients (b) and consolidation confining pressures investigate influence on deformation strength silt. The stress-strain curves exhibited strong strain-hardening characteristics during shearing. Due enhanced particle interlocking microstructural reorganization, demonstrated complex b-dependent characteristics. cohesion rose with increasing b, whereas internal friction angle followed a non-monotonic pattern, decreasing slightly as b approached 1. envelope fell between that predicted by Lade-Duncan extended von Mises criteria., which is best generalized nonlinear criterion when soil parameter α 0.533. findings reveal stress-path-dependent mechanisms provide essential parameters for optimizing design underground engineering projects this region.

Язык: Английский

Процитировано

0
The mechanical properties of frozen peat soil under true triaxial testing and intelligent constitutive modeling based on prior information DOI
Hang Wei, Zhaoming Yao, Xun Wang

и другие.

Cold Regions Science and Technology, Год журнала: 2025, Номер unknown, С. 104496 - 104496

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0
Experimental investigation of ice–frozen sand interface and the effect of ice structure on frozen soil specimens DOI
Song Zhang, Tiecheng Sun, Xiaomin Zhou

и другие.

Bulletin of Engineering Geology and the Environment, Год журнала: 2025, Номер 84(7)

Опубликована: Июнь 5, 2025

Язык: Английский

Процитировано

0
Mechanical properties and constitutive model of artificial frozen sandy soils under true triaxial stress state conditions DOI Creative Commons
Kun Huang,

Haoran Tang,

Dongdong Ma

и другие.

Case Studies in Thermal Engineering, Год журнала: 2024, Номер 61, С. 105026 - 105026

Опубликована: Авг. 25, 2024

Triaxial compression tests were conducted on frozen sandy soils under a constant minimum principal stress (σ3 = 1.6 MPa) and various intermediate stresses (σ2 1.6, 3.4, 5.2, 7.0, 8.8, 9.8 MPa). The purpose of the research was to investigate influence mechanical properties soil, establish constitutive model predict stress-strain relationship soil complex state. test results obtained demonstrated that crack damage failure initially increase then decrease with an in stress. However, initiation exhibits initial up specific value, after which it stabilizes. From perspective propagation, mechanism strength discussed. With variation state, difference between strain gradually increases. deformation revealed using superposition principle Poisson's effect. Finally, based Weibull distribution Drucker-Prager criterion can accurately represent relationships true triaxial states.

Язык: Английский

Процитировано

2
Experimental Study on the Mechanical Behavior of Frozen Soil Reinforced with Disposable Face Masks DOI
Jianpeng Liu, Shuang Cao, Feifan Liu

и другие.

Journal of Cold Regions Engineering, Год журнала: 2024, Номер 38(4)

Опубликована: Сен. 26, 2024

Язык: Английский

Процитировано

1
Experimental Investigation on the Critical Dynamic Stress of Frozen Silty Clay Under Different Temperature and Moisture Conditions DOI Creative Commons
Jiahui Wang, Jihui Ding, Yingying Zhao

и другие.

Applied Sciences, Год журнала: 2024, Номер 14(23), С. 11419 - 11419

Опубликована: Дек. 8, 2024

In this paper, a comprehensive series of dynamic triaxial tests were conducted to delve into the influence temperature and moisture content on behavior frozen silty clay. Upon scrutinizing experimental outcomes under prolonged reciprocal cyclic loading, insights gained how varying temperatures contents impact cumulative permanent strain (CPS) critical stress (CDS) The results show that variation curves CPS with number loadings significant changes at different contents. Additionally, based assessment vertical recorded 100th 1000th loading iterations, criteria for assessing plastic stability creep threshold clay devised. Consequently, an analysis was delineate correlation between in strains stresses applied within clay, resulting formulation curves. relationship CDS affected by water analyzed. limits showed slowly increasing trend decreasing

Язык: Английский

Процитировано

1
Solidification Treatment of Wastewater and Waste Soil Generated during Binhai Reclamation: A Study on Mechanical Properties and Resource Utilization DOI Open Access
Aiwu Yang,

Jian Xu,

Caili Xu

и другие.

Processes, Год журнала: 2023, Номер 11(10), С. 2983 - 2983

Опубликована: Окт. 15, 2023

Coastal reclamation projects generate an accumulation of wastewater and waste soil, resulting in highly saturated soft soil. Presently, there is a scarcity research regarding the lightweight solidification three-dimensional mechanical properties these soils. Additionally, dearth specialized models for stabilizing soils containing using technology, pertinent engineering solutions are lacking. By introducing solidifying agents foaming to treat fill novel type solidified material produced, imparting strength. This study investigates its properties. During triaxial tests with equal stress (σ3) b values, softening curve noticeably diminished at = 0.25. In plane strain test, cohesion increased by 10.7% compared traditional tests, internal friction angle 11%. Subsequently, Cambridge model was established. At elevated confining pressures, corrected closely approximated test curve, demonstrating minimum accuracy approximately 96% pressure 20 KPa. These findings offer valuable numerical references theoretical foundation efficient utilization

Язык: Английский

Процитировано

1
A new three-dimensional strength criterion considering the transverse isotropy based on the α-Spatial Mobilized Plane DOI
Kun Wang, Daofei Tang, F. Tian

и другие.

Computers and Geotechnics, Год журнала: 2024, Номер 177, С. 106853 - 106853

Опубликована: Окт. 24, 2024

Язык: Английский

Процитировано

0
Triaxial tests and numerical simulations on frozen silty clays under different stress paths and minor principal stresses DOI
Hongpeng Zhang,

Qinyong Ma,

Dongdong Ma

и другие.

European Journal of Environmental and Civil engineering, Год журнала: 2024, Номер unknown, С. 1 - 17

Опубликована: Ноя. 21, 2024

To investigate the mechanical characteristics of frozen silty clay under complex stress paths, using true triaxial instrument for permafrost, tests were carried out compressive and plane strain states permafrost to analyze deformation strength evolution law different paths minor principal stresses (σ3) establish criterion conditions. PFC3D numerical simulation results compared test meso-crack was discussed. The showed that stress-strain curves characterized by hardening. Destructive a gradual increase with σ3 values obtained from higher than those compression tests. Volume strains basically shear shrinkage all directions expansion deformation. Strength at damage state approximated based on generalized Mises Lade-Duncan criterion. Stress-strain in agreed well indoor results. number tensile cracks developed model various increased strain.

Язык: Английский

Процитировано

0