Results 21 to 30 of about 111,840 (308)

Study on the size effect of elastic modulus of rock considering the joint spacing

Frontiers in Materials, 2023
The relationship between the rock’s elastic modulus and deformation characteristics, affected by joint spacing and ductility, was not determined. This study investigates the size effect of the elastic modulus of rock with parallel joints using numerical ...
Tao Zhao, Tao Zhao, Tao Zhao, Gaojian Hu
doaj   +1 more source

A fractal fragmentation model for rockfalls [PDF]

, 2017
The final publication is available at Springer via http://dx.doi.org/10.1007/s10346-016-0773-8The impact-induced rock mass fragmentation in a rockfall is analyzed by comparing the in situ block size distribution (IBSD) of the rock mass detached from the ...
Corominas Dulcet, Jordi, Mavrouli, Olga Christina, Ruiz Carulla, Roger   +2 more
core   +2 more sources

Numerical Analysis on the Influence of Non-persistent Joint Inclination on the Deformation and Failure of Surrounding Rock

Taiyuan Ligong Daxue xuebao, 2021
The existence of non-persistent joints makes the stability, deformation characteristics, and stress distribution of surrounding rock more complicated.
Baoyu ZHANG, Changsuo ZHANG
doaj   +1 more source

The Effect of Horizontal Smooth Joints on Strength and Deformability of Sandstone [PDF]

Eurasian Journal of Science and Engineering, 2017
The Uniaxial Compressive Strength (UCS) and deformability of jointed rock are required to design structures on or in jointed rock mass. These rock masses depend on the number and orientation of joints. In this study, horizontal smooth joints were created
Younis Alshkane
doaj   +1 more source

Use of Rock Mass Rating (RMR) values for support designs of tunnels excavated in soft rocks without squeezing problem [PDF]

, 2019
Effect of the rock material strength on the RMR value and tunnel support designs were investigated within this study including site works, analytical and numerical analyses.
Demir, Serhat, Komurlu, Eren
core   +1 more source

Evaluation of maximum rockfall dimensions based on probabilistic assessment of the penetration of the sliding planes into the slope [PDF]

, 2020
There is intrinsic difficulty in the investigation of the largest volume of rockfalls that is expected in an area, which lies in the small number of large events, in registrable times.
Corominas Dulcet, Jordi, Mavrouli, Olga Christina   +1 more
core   +3 more sources

Influence of the Tunnel Shape on Shotcrete Lining Stresses [PDF]

, 2012
Tunnel excavation is frequently carried out in rock masses by the drill and blast method and the final shape of the tunnel boundary can be irregular due to overbreaks.
Adeli, AFTES, Barpi, Bianchini, Borio, Brown, BTS, Carranza-Torres, CETU, DAUB, Dubois, Goodman, Hellmich, Hoek, Hoek, Ibarra, ICE, Kalamaras, Lunardi, Mancini, Mancini, Mancini, Oreste, Panet, Peila, Sadeghi, Samant, Sarma, Sarma, Sarma, Scheiner, Schmitz, Schulz, Singh, Son, Stelzer, Tagherouit, Thomas, USACE, Wahlstrom, Wood, Wyllie, Zadeh, Zadeh   +43 more
core   +1 more source

Improvment of safety conditions of unstable rock slopes through the use of explosives [PDF]

, 2008
The paper discusses operations aimed at creating a safer natural or man made rock slope by artificially inducing the displacement of unstable elements by blasting.
Casale, M., Oggeri, Claudio, Peila, Daniele   +2 more
core   +3 more sources

How thick is a fault? Fault displacement-thickness scaling revisited [PDF]

, 2006
No abstract ...
Bright, A.M., Kirkpatrick, J.D., Lunn, R.J., Shipton, Z.K., Soden, A.M.   +4 more
core   +1 more source

Numerical investigation of bolted rock joints under varying normal stress and joint roughness coefficient conditions

Frontiers in Earth Science
Rock masses are formed through long-term, complex geological processes, and the presence of joints significantly reduces their strength and increases their deformation.
Zhiyong Wang, Zhiyong Wang, Liyun Liao, Liyun Liao, Shiyi Guo, Shiyi Guo, Hanfang Zheng, Xuezhen Wu, Xuezhen Wu   +8 more
doaj   +1 more source