Results 101 to 110 of about 13,773,158 (351)

The Establishment of Segmented Constitutive Relationship of Coal under Triaxial Compression: Take the No. 3 Coal of Xinhe Colliery as an Example

Advances in Civil Engineering, 2020
Constitutive relationship of coal under triaxial compression must be determined during solving the theoretical calculation and numerical simulation about coal body failure. This paper carried out the conventional triaxial compression test on No.
Yongjie Yang, Yang Zhang, Tianli Zhang
doaj   +1 more source

Experimental and constitutive modeling investigations on marble in Jinping Underground Laboratory

Deep Underground Science and Engineering, EarlyView.
The objective of this study is to reveal the underlying mechanisms behind the brittle‐ductile transition of the marble through a combination of experimental research and constitutive modeling. A series of triaxial compression and triaxial cyclic loading tests are conducted.
Susheng Wang, Qiang Zhang, Hao Luo, Zhinan Lin   +3 more
wiley   +1 more source

Characterization of the permeability evolution of hard and soft rocks under hydro‐mechanical coupling conditions

Deep Underground Science and Engineering, EarlyView.
The permeability variation of rocks during complete stress–strain processes was investigated. A mathematical model describing the influence of rock damage on permeability was constructed. The permeability–stress relationship between soft rock and hard rock was proposed.
Zhen Huang, Jian Yu, Yun Wu, Cong Gong, Xiaozhao Li, Kui Zhao, Dickson Moyo   +6 more
wiley   +1 more source

The Triaxial Test of Polypropylene Fiber Reinforced Fly Ash Soil. [PDF]

Materials (Basel), 2022
Li L, Zhang X, Xiao H, Zhang J, Chen N, Li W.   +5 more
europepmc   +1 more source

On the capillary stress tensor in wet granular materials

, 2011
This paper presents a micromechanical study of unsaturated granular media in the pendular regime, based upon numerical experiments using the discrete element method, compared to a microstructural elastoplastic model.
Alonso, Biarez, Bishop, Bishop, Cambou, Chang, Chang, Christofferson, Cundall, De Buhan, Fisher, Fleureau, Fredlund, Haines, Hicher, Hicher, Hicher, Hotta, Jiang, Kozicki, Li, Lian, Liao, Love, Lu, Mahboubi, Nemat-Nasser, Nicot, Nuth, Rothenburg, Soulié, Terzaghi, Wheeler, Willet   +33 more
core   +1 more source

Strain‐based modeling and analysis for rock blasting and geomechanics applications

Deep Underground Science and Engineering, EarlyView.
This paper introduces a novel strain‐based modeling approach for blasting and geomechanical applications, using measurable variables like particle velocity, strain, and displacement. By bypassing complex constitutive relations, strain‐based models capture critical blasting trends and full‐blast design parameters with minimal calibration.
Ruilin Yang
wiley   +1 more source

Dissipated energy in undrained cyclic triaxial tests [PDF]

, 2015
Energy-based methods are an emerging tool for the evaluation of liquefaction potential. These methods relate excess pore water pressure build-up to seismic energy dissipated per unit volume.
Azeiteiro, RJN, Coelho, PALF, Grazina, JC, Taborda, DMG   +3 more
core  

Probability prediction of true‐triaxial compressive strength of intact rocks based on the improved PSO‐RVM model

Deep Underground Science and Engineering, EarlyView.
In this work, we propose an improved particle swarm optimization (PSO) algorithm and develop an improved PSO‐relevance vector machine (RVM) model as a substitute for traditional true‐triaxial testing. The model's high prediction accuracy was validated through comparisons with two other machine learning methods and five three‐dimensional Hoek–Brown type
Qi Zhang, Maohui Wang, Ning Wang, Yixin Shen, Xuzhen He   +4 more
wiley   +1 more source

Optimal sensor placement in hydropower house based on improved triaxial effective independence method

Water Science and Engineering, 2012
The capacity and size of hydro-generator units are increasing with the rapid development of hydroelectric enterprises, and the vibration of the powerhouse structure has increasingly become a major problem.
Ji-jian Lian, Long-jun He, Hai-jun Wang
doaj   +1 more source

Temperature induced pore fluid pressurization in geomaterials [PDF]

, 2010
The theoretical basis of the thermal response of the fluid-saturated porous materials in undrained condition is presented. It has been demonstrated that the thermal pressurization phenomenon is controlled by the discrepancy between the thermal expansion ...
Ghabezloo, Siavash, Sulem, Jean
core   +3 more sources