Results 41 to 50 of about 3,618 (152)
Advances in Materials Science and Engineering, 2018 The study of deformation, strength, and other mechanical characteristics of sandstone under true triaxial compression is significant for understanding failure mechanisms in rock and evaluating the stability of underground structures.
Zhaolin Li +4 more
doaj +1 more source
Exponential true triaxial strength criteria for rock
Yantu gongcheng xuebao, 2018 The rock strength is the premise and foundation for stability evaluation of rock engineering and optimization design of structures. Based on the true triaxial test results, the evolution of rock strength are analyzed: (1) The rock strength increases with
ZHANG Qiang , LI Cheng , GUO Qiang , MIN Ming , JIANG Bin-song , WANG Yan-ning
doaj +1 more source
International Journal of Mining Science and Technology, 2023 Investigations on the dynamic mechanical properties and failure mechanisms of coal under in-situ stress is essential for the prevention of dynamic disasters in deep coal mines.
Zhanguo Ma +5 more
doaj +1 more source
Deep Underground Science and Engineering, EarlyView.This study establishes a multi‐factor coupling framework for predicting breakdown pressure in laminated shale by integrating experimental hydraulic fracturing tests, physics‐informed neural networks (PINNs), and Sobol sensitivity analysis. It reveals how differential stress, the bedding dip angle, and the injection rate interact to influence fracture ...
Tao Wang +6 more
wiley +1 more source
Advances in Civil Engineering, 2021 The TRW-3000 true triaxial rock testing machine was used to conduct loading and unloading tests of sandstone under different σ2, and the true triaxial lateral unloading mechanics and energy characteristics of sandstone under different σ2 were studied ...
Yingjie Zhang +3 more
doaj +1 more source
Deep Underground Science and Engineering, EarlyView.This paper conducts a numerical simulation study on the construction of a deep‐buried tunnel in an anisotropic stratum area. A statistical analysis of the effects of two anti‐faulting design measures, namely, a conventional design and an articulated design, is carried out, and the results demonstrate the effectiveness of the anti‐faulting structures ...
Shiqi Liu +3 more
wiley +1 more source
Modified true triaxial Hoek-Brown criterion considering intermediate principal stress effect
Meitan kexue jishuIn order to improve the Hoek-Brown strength criterion not considering the influence of intermediate principal stress on rock strength, the evolutions of rock strength were investigated according to the results of the rock true triaxial compression test ...
Yapeng LI +3 more
doaj +1 more source
Similar locomotor patterns across Quarter Horse disciplines inform lameness assessment
Equine Veterinary Journal, EarlyView.Abstract Background Lineage‐based selection is central to the Quarter Horse industry and is often justified by the assumption that morphology determines locomotor function. However, objective evidence linking static conformation to discipline‐specific locomotor behaviour under standardised conditions remains limited.
Renata Farinelli de Siqueira +4 more
wiley +1 more source
JCPP Advances, EarlyView.Abstract Background Attention‐deficit/hyperactivity disorder (ADHD) symptoms are associated with adverse health outcomes; this may be partially due to unhealthy lifestyle factors such as low physical activity (PA) and high sedentary behavior (SED). However, this association remains unclear.
Narda Ontiveros +5 more
wiley +1 more source
A method to determine strength parameters by triaxial testing and 3D rock failure models
Journal of Rock Mechanics and Geotechnical EngineeringEstimating the strength parameters of a chosen rock failure criterion is crucial for rational stability analyses. However, the grid search algorithm applied to true triaxial test data presents challenges that hinder its widespread adoption.
Pengfei He +4 more
doaj +1 more source