Results 251 to 260 of about 76,814 (294)

Slit tube responses and rock fracture characteristics in slit charge blasting under high in situ stress

Deep Underground Science and Engineering, EarlyView.
In this article, the finite element method‐smoothed particle hydrodynamics adaptive coupling algorithm is applied to numerically simulate and analyze the dynamic response of the slit tube and the crack propagation under high in situ stress. The dynamic response of the slit tube mainly exhibits radial response in the vertical direction of the slit and ...
Zhe Sui, Liyun Yang, Lijun Wu, Chenxi Ding   +3 more
wiley   +1 more source

Study on longitudinal nonlinear deformation of adjacent existing tunnels induced by deep foundation excavation. [PDF]

Sci Rep
Zhao H, Song Y.
europepmc   +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

Dvelopment and application of similar material for physical model test of an ultradeep foundation pit in round gravel strata. [PDF]

Sci Rep
Guo Y, Ren X, Liu S, Fu X, Yuan G, Zhang G, Yang Y, Yang Z, Wang X, Ni M.   +9 more
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

An interpretable framework for risk management in TBM excavation using expert elicitation integrated with fuzzy set theory. [PDF]

Sci Rep
Kwon K, Kang M, Shin YJ, Ahn B, Choi H.
europepmc   +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

Evaluating fault stability near tunnels: a numerical parametric study and a dimensionless safety approach. [PDF]

Sci Rep
Mohamed T, Nasr A.
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

Optimization of large-diameter deep-hole stope blasting technology based on numerical simulation: a case study of the Dongguashan copper mine. [PDF]

Sci Rep
Guo J, Sun S, Jiang N, Wang J, Huang M, Yan X, Yang W, Zhang Q.   +7 more
europepmc   +1 more source