Results 21 to 30 of about 70,920 (305)

Dynamic strength of rocks and physical nature of rock strength

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2009
Abstract:Time-dependence of rock deformation and fracturing is often ignored. However, the consideration of the time-dependence is essential to the study of the deformation and fracturing processes of materials, especially for those subject to strong dynamic loadings.
Qian, Qihu, Qi, Chengzhi, Wang, Mingyang
openaire   +1 more source

Assessment of rock fragmentation and strength properties using the Rosin-Rammler and Extended Swebrec Distribution functions parameters [PDF]

open access: yesInternational Journal of Mining and Geo-Engineering, 2022
This work assessed the curve fitting ability of Rosin-Rammler and Swebrec functions and the comparison of their fitting parameters with rock strength properties.
Victor Akinbinu   +2 more
doaj   +1 more source

Estimation of uniaxial compressive and indirect tensile strengths of intact rock from Schmidt hammer rebound number

open access: yesJournal of the Mechanical Behavior of Materials, 2023
A number of destructive and non-destructive tests were conducted on rock samples collected from various zones in northern Iraq. So far, for Iraqi rocks, few studies have correlated Schmidt hammer rebound (R) with both unconfined compressive strength (UCS)
Fadhil Amjad Ibrahim   +2 more
doaj   +1 more source

A new method for determining strength parameters of rock using digital drilling technology

open access: yesFrontiers in Earth Science, 2023
Fast and accurate prediction for mechanical parameters of rock mass is an important prerequisite for guiding the safe construction of rock engineering.
Guo Qiang, Xudong Ma, Xinxing Liu
doaj   +1 more source

A Comparative Study of Regression Model and the Adaptive Neuro-Fuzzy Conjecture Systems for Predicting Energy Consumption for Jaw Crusher

open access: yesApplied Sciences, 2019
Crushing is a vital process for different industrial applications where a significant portion of power is consumed to properly blast rocks into a predefined size of fragmented rock.
Khaled Ali Abuhasel
doaj   +1 more source

Thermal Shock Effect on Strength Loss Properties of Rock Materials: An Experimental Study on Thermal Fatigue Durability

open access: yesDoğal Afetler ve Çevre Dergisi, 2019
Four different types of rock materials from Eastern Black Sea Region of Turkey were investigated to determine their change in porosity as well as the degree of cracking, fracturing, disintegration and strength loss under heating-cooling cycles with ...
Eren Kömürlü
doaj   +1 more source

ROCK MASS QUALITY EFFECTED BY LINEAMENT USING ROCK MASS RATING (RMR)– CASE STUDY FROM FORMER QUARRY SITE [PDF]

open access: yesEarth Science Malaysia, 2017
Lineament plays major role in stability and strength of rock mass. The presence of lineaments will decrease the strength of rock mass. Lineament can be identified or trace using topographic map, aerial photographs or satellite images. In this research,
Hamzah   +3 more
doaj   +1 more source

Experimental investigation of incipient shear failure in foliated rock [PDF]

open access: yes, 2015
It has long been known that rock fabric plays a key role in dictating rock strength and rheology throughout Earth's crust; however the processes and conditions under which rock fabric impacts brittle failure and frictional strength are still under ...
Niemeijer, André R.   +3 more
core   +1 more source

A New Method for Predicting Residual Strength of Rock in Water Diversion Tunnel Using Drilling Process Monitoring

open access: yesShock and Vibration, 2022
The peak and residual strengths of rock materials are important parameters for the stability evaluation of rock engineering, especially water diversion tunnels.
Wanfei Gao
doaj   +1 more source

A new shear strength criterion of three-dimensional rock joints

open access: yes, 2020
The presence of rock joints substantially reduces the rock mass strength. The deformability and stability of natural and engineered rock structures, such as rock slopes and underground caverns, are highly afected by rock joints along which sliding can
Li, Yingchun   +3 more
core   +1 more source

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