Results 11 to 20 of about 867,349 (301)

The noncontact determination technique research of dangerously loaded zones in the underground mining [PDF]

open access: yesE3S Web of Conferences, 2019
The electromagnetic radiation signals associated with the destruction of rock samples were studied under field and laboratory conditions. The parameters of the signal were found that preceded the violation of the integrity of the rock in laboratory ...
Bizyaev Aleksey   +3 more
doaj   +1 more source

Progressive failure and friction motion characteristics of contact surface of composite rock mass [PDF]

open access: yesE3S Web of Conferences, 2021
The structural planes existing in natural rock mass can control the failure process of rock mass. Based on the progressive response-stability failure process of a single fracture interface, the relationship between progressive response and material ...
Jinhai Zhao   +3 more
doaj   +1 more source

Engineering geological studies for empirical design of tunnel 7 of Jakarta - Bandung high-speed railway, Indonesia [PDF]

open access: yesE3S Web of Conferences, 2021
The empirical design of tunnel 7 of the Jakarta-Bandung high-speed railway was based on the Basic Quality (BQ) system, which was the Chinese standard of rock mass classification.
Pramono Riski   +2 more
doaj   +1 more source

3-D discontinuum numerical modeling of subsidence incorporating ore extraction and backfilling operations in an underground iron mine in China

open access: yesInternational Journal of Mining Science and Technology, 2017
An underground iron mine in China has been used as a case-study to research the subsidence due to ore extraction and backfilling during open stoping operations.
Gang Huang   +4 more
doaj   +1 more source

Distant interaction of rock mass clusters around underground opening [PDF]

open access: yes, 2017
Purpose. To experimentally prove the fact of distant interaction between rock clusters during the irreversible displacements of rock mass. Disintegration of the rock mass does not necessarily imply loss in underground working stability.
Diedich, I   +3 more
core   +3 more sources

MODELLING ROCK MASS IMPROVEMENT USING ROCK BOLTS

open access: yesActa Polytechnica CTU Proceedings, 2017
Anchor support currently represents a significant reinforcing technique in underground constructions. The principles of rock bolt reinforcement action are derived from various concepts of the underground excavation stability.
Jan Pruška
doaj   +1 more source

A fractal fragmentation model for rockfalls [PDF]

open access: yes, 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   +2 more
core   +2 more sources

Engineering Gology Model of Bener Dam Diversion Tunnels in Geological Risk Disaster Mitigation

open access: yesJGE, 2020
The Bener Dam Diversion Tunnel Plan is located in Bener District, Purworejo Regency. Engineering geology mapping data, drillimg data and laboratory data used as primary data.
Daru Jaka Sasangka   +2 more
doaj   +1 more source

Experimental Study on the Vibration Characteristics of Dangerous Rock Mass under Constant Micromotion

open access: yesAdvances in Civil Engineering, 2023
In mountainous areas, dangerous rock mass collapse is a serious threat to human life and property safety. However, how to effectively prevent and control the instability of dangerous rock mass is still an urgent unsolved problem.
Xiaoyong Zhang   +6 more
doaj   +1 more source

Virtual reality assisted techniques in field tests and engineering application of the mechanical parameters of a horizontally layered rock mass

open access: yesAlexandria Engineering Journal, 2022
The mechanical indices used to describe the anisotropy of layered rock mass are numerous and difficult to be measured. Take the medium - thick horizontal layered limestone rock mass as an example, rock mechanical tests, engineering geological survey ...
Xianmin Han   +3 more
doaj   +1 more source

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