Results 1 to 10 of about 272,415 (188)

Multi-Rock Mass Classification Systems for the Assessment of Excavation Method and Support Design of Spillway Tunnel, Sidan Dam, Bali, Indonesia [PDF]

open access: diamondE3S Web of Conferences, 2023
This paper presents the implementation of rock mass classification systems to determine the excavation method and the support design of the Spillway Tunnel, Sidan Dam, Bali, Indonesia.
Arianto Benny   +2 more
doaj   +2 more sources

Revisiting rock classification to estimate rock mass properties

open access: diamondJournal of Rock Mechanics and Geotechnical Engineering, 2019
This paper presents the results of ongoing research carried out by the author exploring methods to provide a more robust estimate of rock mass properties specifically for use in tunnel design.
Robert Bertuzzi
doaj   +2 more sources

Rock mass classification prediction model using heuristic algorithms and support vector machines: a case study of Chambishi copper mine [PDF]

open access: yesScientific Reports, 2022
The rock mass is one of the key parameters in engineering design. Accurate rock mass classification is also essential to ensure operational safety. Over the past decades, various models have been proposed to evaluate and predict rock mass.
Jianhua Hu   +5 more
doaj   +2 more sources

Classification Method of Rock Structure and Rock Mass Quality of Surface Granite: Geological Disposal of High-Level Radioactive Waste in China [PDF]

open access: goldAdsorption Science & Technology, 2022
The engineering quality of rock mass is a key factor to evaluate the long-term stability and safety of high-level radioactive waste (HLW) geological disposal engineering and is also the important basis for disposal site selection.
Wei Xiang, Hanlie Cheng, David Cadasse
doaj   +2 more sources

An engineering rock mass quality classification system for deep-buried hard rock tunnels

open access: goldFrontiers in Earth Science
Rockburst hazards occur sporadically after excavation of deep-buried hard rock tunnel. These failures in the surrounding rock masses are primarily induced by high ground stress, rendering conventional rock mass quality classification systems less ...
Zhijue Wu   +4 more
doaj   +2 more sources

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

Rock mass quality classification based on fuzzy comprehensive evaluation and neural network

open access: yesYou-qi chuyun, 2022
Aiming at the problems of subjectivity and fuzziness in the traditional rock mass quality classification methods, a basic model of rock mass quality classification was established based on the fuzzy theory.
Shaodong JING   +3 more
doaj   +1 more source

Classification Method and Application of Rock Fracture Ability by Supercritical CO2 Blasting

open access: yesShock and Vibration, 2022
In order to study the fracture ability classification of rock mass under the cracking action of supercritical CO2 phase transition, based on the classification theory of rock mass in blasting engineering, an analytic hierarchy process (AHP)-entropy ...
Xiaohong Zhu, Jianhong Jia, Zhongwei Cai
doaj   +1 more source

A quantitative assessment method for the correlation between rock mass basic quality and Protodyakonov coefficient

open access: yesFrontiers in Earth Science, 2023
With the implementation of the “Belt and Road” initiative, tunnel projects were designed in accordance with Russian design specifications and constructed by Chinese companies in countries along the route.
Zigang Ji   +6 more
doaj   +1 more source

A Rock Mass Classification Method for Tuff Tunnel Based on the High-Pressure Gas Expansion Method

open access: yesJournal of Engineering, 2023
A precise rock mass grade result is crucial for directing the tunnel excavation engineering design. A novel rock mass classification method for tuff tunnel based on the high-pressure gas expansion method (HPGEM) was proposed, which was primarily built on
Huaide Peng   +4 more
doaj   +1 more source

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