Results 191 to 200 of about 2,759,873 (338)

Roof Collapse When Mining Coal Seams [PDF]

, 2017
Cherednyk, Vladyslava, Khozyaykina, N. V., Kostrytska, S. I.   +2 more
core  

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

Structural optimization of the excavator boom under extreme working conditions using EDEM-ADAMS coupled simulation. [PDF]

PLoS One
Wu H, Ding X, Liu G, Zhu X, Wang H.
europepmc   +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

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

Optimization of blasting for high-efficiency and low-damage drivage of large-section production drifts in block caving. [PDF]

Sci Rep
Yan S, Jian X, Li X, Feng X, Li G.
europepmc   +1 more source

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

Effect of minimal intervention on carious lesions in primary teeth. An Umbrella review. [PDF]

Front Dent Med
Padilla-Cáceres TC, Arbildo-Vega HI, Mamani-Cori V, Caballero-Apaza LM, Cruzado-Oliva FH, Farje-Gallardo CA, Marroquín-Soto C, Aguirre-Ipenza R, Vásquez-Rodrigo H, Luján-Valencia SA, Meza-Málaga JM, Castillo-Cornock TB, Coronel-Zubiate FT.   +12 more
europepmc   +1 more source

Study on the failure mechanism of the shield excavation face in the sandy cobble stratum under different buried depths

Deep Underground Science and Engineering, EarlyView.
Abstract One of the significant challenges faced in shield tunnel construction is the risk of collapse resulting from abrupt changes in soil conditions in advance of the working face, particularly within the sandy cobble stratum. This study aims to effectively manage these sudden variations and to further investigate the failure mechanisms associated ...
Hua Jiang, Chongyang Liu, Ao Zhang, Xiaoyan Zhang, Yuhang Li   +4 more
wiley   +1 more source

The stress-strain analysis of the entire construction process of underground diaphragm wall based on self-sensing FRP bar monitoring. [PDF]

Sci Rep
Li J, Shi Q, Xu S, Sun K, Liu Y.
europepmc   +1 more source