Results 21 to 30 of about 272,485 (255)

Mechanical Parameters of Deep-Buried Coal Goaf Rock Mass Based on Optimized GSI Quantitative Analysis

Advances in Civil Engineering, 2021
In order to obtain the accurate mechanical parameters of deep-buried coal goaf rock mass, the limitation of geological strength index (GSI) in concealed rock mass is analyzed.
Qingqiu Wang, Mo Xu, Yunhui Zhang, Xinyu Cen, Xingwang Chang   +4 more
doaj   +1 more source

Improving rock classification in terms of explosivity [PDF]

, 2019
Purpose. To improve rock classification in terms of explosivity relying upon the detailed analysis of characteristics of rating classifications available in the Russian Federation and in the world. Methods.
Kirsanov, A, Kurchin, G, Lobatsevich, M, Trebush, Yu, Vokhmin, S, Zaitseva, E   +5 more
core   +1 more source

Joint Investigation and 3D Visual Evaluation of Rock Mass Quality

Advances in Civil Engineering, 2020
In order to realize the high efficiency quality classification and three-dimensional visualization of engineering rock mass and to solve the technical difficulties of the traditional rock mass quality evaluation method such as high labor intensity, long ...
Haiping Yuan, Chenghao Chen, Yixian Wang, Hanbing Bian, Yan Liu   +4 more
doaj   +1 more source

Updating of the Hierarchical Rock Mass Rating (HRMR) system and a new subsystem developed for weathered granite formations [PDF]

, 2014
The RMR system is still very much applied in rock mechanics engineering context. It is based on the evaluation of six weights to obtain a final rating.
Berry, Bieniawski, Cortez, Hastie, Lima, Miranda, Miranda, Sousa   +7 more
core   +2 more sources

Quantitative granitic weathering assessment for rock mass classification optimization of tunnel face using image analysis technique

Ain Shams Engineering Journal, 2023
Weathering degree is one of the key criteria used to determine tunnel support with the main difficulty is in assessing the weathering grade of the tunnel face. This study applied CIEL*a*b colour space and image analysis to a rock mass tunnel face.
Intan Norsheira Yusoff, Mohd Ashraf Mohamad Ismail, Hayato Tobe, Kensuke Date, Yasuhiro Yokota   +4 more
doaj   +1 more source

Tensile Strength of Geological Discontinuities Including Incipient Bedding, Rock Joints and Mineral Veins [PDF]

, 2016
Geological discontinuities have a controlling influence for many rock-engineering projects in terms of strength, deformability and permeability, but their characterisation is often very difficult.
A Brzovic, A Turichshev, AS Khan, AV Turkington, CN Waters, D Saiang, DQ Dan, DU Deere, F Tating, G Barla, HB Li, I Hawkes, ISRM, ISRM, J. Shang, JF Liu, JGM Mier, JJ Liao, K Hashiba, L. J. West, M Cravero, MA Perras, N Aitkenhead, N Erarslan, NJ Soper, P Paronuzzi, S Okubo, S. R. Hencher, SR Hencher, SR Hencher, SR Hencher, SR Hencher, W Wang, WBR King   +33 more
core   +3 more sources

Characterization of rock slopes through slope mass rating using 3D point clouds [PDF]

, 2016
Rock mass classification systems are widely used tools for assessing the stability of rock slopes. Their calculation requires the prior quantification of several parameters during conventional fieldwork campaigns, such as the orientation of the ...
Abellán, Anbalagan, Andrea, Barton, Bieniawski, Bieniawski, de Vallejo, Ferrero, Filipello, Gigli, Haneberg, Hudson, Irigaray, Jaboyedoff, Khoshelham, Lato, Lato, Lato, Olariu, Oppikofer, Oppikofer, Riquelme, Riquelme, Romana, Slob, Sturzenegger, Sturzenegger, Sturzenegger, Tomás, Umili   +29 more
core   +2 more sources

Rock Slope Stability Of Ponorogo - Pacitan Road Km 232.5 Using Rock Mass Rating (Rmr) And Rocplane Software

Rekayasa Sipil, 2021
Geological structures and discontinuities in the rock are weak areas and groundwater infiltration pathways. The existence of geological structures and discontinuities will reduce the level of rock shear strength and the main implication is to increase ...
Hasyim Alhadar, Arief Rachmansyah, Eko Andi Suryo   +2 more
doaj   +1 more source

Alternative models for the calculation of the RMR and Q indexes for granite rock masses [PDF]

, 2007
Empirical classification systems like the RMR and Q are often used in current practice of geotechnical structures design built in rock masses. They allow obtaining an overall description of the rock mass and the calculation, through analytical ...
Correia, A. Gomes, Cortez, Paulo, Miranda, Tiago F. S., Nogueira, I., Santos, Manuel Filipe, Sousa, L. R.   +5 more
core   +1 more source

Characteristics of boulders formed in tropical weathered granite: a review [PDF]

, 2016
Boulder is well known as one of the obstruction material and problematic to the underground excavations and constructions. Although the presence of boulder in weathered rock mass was revealed and reported by many researchers, but the occurrence and ...
Komoo, Ibrahim, Md Dana, Mohd. Firdaus, Mohamad, Edy Tonnizam   +2 more
core   +1 more source