Results 261 to 270 of about 2,759,873 (338)

Numerical and experimental study on optimal design of rock bolts in single-lining support of expressway tunnel. [PDF]

Sci Rep
Wu M, Jiang B, Hu X, Wu S.
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Research on PFC3D meso-parameters prediction model and strength simulation of backfill based on hemical-mechanical coupling. [PDF]

Sci Rep
Wang Y, Cao C, Wang D, Jiao J, Wu A.
europepmc   +1 more source

Water-induced damage mechanism and dual-radius grouting control of weakly cemented argillaceous roadways in Western China. [PDF]

Sci Rep
Yu Z, Lun Z, Zhang Z, Zhang W, Wang S, Zhao L, Liu S.   +6 more
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Influence of adjacent undercutting line positions on surrounding rock stability in block caving. [PDF]

Sci Rep
Cao Y, Hua X, Zhang H.
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18-yr cumulative incidence of respiratory outcomes is related to employment sectors in a general population sample. [PDF]

Sci Rep
Maio S, Sarno G, Angino A, Stanisci I, Tagliaferro S, Gariazzo C, Marchetti MR, Massari S, Biggeri A, Catelan D, Viegi G, Baldacci S.   +11 more
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Kinematic simulation and trajectory planning of intelligent tunneling automatic mesh-laying robot. [PDF]

Sci Rep
Chengjun H, Kun Z, Gege P, Mingchao D, Jinglong B, Liangsong H, Bo L, Shuo W.   +7 more
europepmc   +1 more source

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Mechanical excavation in mining and civil industries

International Journal of Mining, Reclamation and Environment, 2014
As the preface to the book states, ‘this book is intended to reflect several years of experience and accumulated knowledge on mechanized excavation, applied especially in mining and construction in...
R. Singhal
openaire   +2 more sources

Experimental investigation on dynamic mechanical properties and fracture evolution behavior of the underground openings with excavation damaged zones

International journal of damage mechanics, 2022
The existence of excavation damaged zone (EDZ) generally influences the stability and safety of the underground openings. To investigate the influence of EDZ on the stability of underground excavation under dynamic stress disturbances, underground ...
Huatao Zhao, Mingjiang Tao, Xibing Li, Zhixian Hong, Rui Zhao, Wenzhuo Cao   +5 more
semanticscholar   +1 more source

Reducing-resistance mechanism of vibratory excavation of hydraulic excavator

Journal of Central South University of Technology, 2008
Based on the working principle of vibratory excavation of hydraulic excavator, the expression of digging resistance changed with time under sine wave inspiritment was deduced; a comparison analysis was given after calculating the forces status of rock and soil under static load and vibratory load respectively by using MATLAB; and then RFPA-2D(rock ...
Jian-xin Zhu, Cheng-yun Yang, Huo-yan Hu, Xiang-fu Zou   +3 more
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A Multi-Criteria Procedure for Selecting Mechanical Excavation Methods

Inżynieria Mineralna, 2019
This paper presents the results of a technical and economic analysis of the process of obtaining aggregates by mechanical excavation using hydraulic hammers, vibration rippers, Wirtgen surface miners, and ripper-dozers.
Maciej Zajączkowski, Z. Kasztelewicz, M. Sikora, Tomasz Będkowski   +3 more
semanticscholar   +1 more source