Results 31 to 40 of about 3,185 (188)

Effect of Joint Roughness and Infill Thickness on Shear Characteristics of Rock Mass

Advances in Civil Engineering, 2022
The joint planes in fractured rock mass will reduce the tensile strength and shear strength of rock mass, which has a decisive influence on the deformation and failure mode of engineering rock mass.
Xuezhen Wu, Hanfang Zheng, Gang Wang, Yuanjin Zhou, Zhenchang Guan   +4 more
doaj   +1 more source

Unified Friction Formulation from Laminar to Fully Rough Turbulent Flow [PDF]

, 2018
This paper provides a new unified formula for Newtonian fluids valid for all pipe flow regimes from laminar to fully rough turbulent flow. This includes laminar flow; the unstable sharp jump from laminar to turbulent flow; and all types of turbulent ...
Brkić, Dejan, Praks, Pavel
core   +4 more sources

Determination of Joint Surface Roughness Based on 3D Statistical Morphology Characteristic

Advances in Civil Engineering, 2021
Roughness significantly affects the shear behavior of rock joints, which are widely encountered in geotechnical engineering. Since the existing calculation methods on the joint roughness coefficient (JRC) fail to obtain a sufficiently accurate value of ...
Hang Lin, Jianxin Qin, Yixian Wang, Yifan Chen   +3 more
doaj   +1 more source

The role of rock joint frictional strength in the containment of fracture propagation [PDF]

, 2016
The fracturing phenomenon within the reservoir environment is a complex process that is controlled by several factors and may occur either naturally or by artificial drivers.
A Palmstrom, A Palmstrom, A Settari, A Trivedi, AA Daneshy, AC Ugural, B Damjanac, B Yang, BA Schrefler, BB Singhal, BHG Brady, CA Tang, CE Renshaw, DM Ivars, E Anderson, E Fjaer, E Haghighat, E Hoek, E Hoek, ER Simonson, FG Bell, GD Anderson, H Konietzky, H Lee, HA Eekelen Van, Itasca Consulting Group, J Byerlee, J Lichun, J Rutqvist, J-W Park, JA Hudson, JG Wang, JQ Deng, K Duan, K Eshiet, K Eshiet, KC Bennett, Kenneth Imo-Imo Eshiet, L Zhang, M Cai, M Chen, M Plesha, M Plesha, M Sarmadivaleh, M Tjioe, M Tjioe, ME Hanson, MK Hubbert, MK Hubbert, MPJ Schopfer, N Barton, N Barton, N Barton, N Barton, N Barton, N Cho, N Moës, NJ Price, NR Warpinski, PHSW Kulatilake, Q Huang, RI Borja, S Bandis, S Ji, S Ji, S Pietruszczak, S Pietruszczak, S Secchi, S Secchi, SC Blair, SM Ghaderia, T Mohammadnejad, T Moon, W Narr, X Li, X Zhang, X Zhang, Y Ohnishi, Yong Sheng, Z Bieniawski, Z Xu   +80 more
core   +1 more source

The Influence of Different Shear Directions on the Shear Resistance Characteristics of Rock Joints

Buildings, 2023
The joint roughness coefficient JRC of rock joints is an important parameter for measuring the geometric morphology of rock joints. However, the parameter obtained from traditional calculation methods has certain limitations in reflecting the differences
Xipeng Lai, Wei Yuan, Wei Wang, Ruifeng Sun, Pengzhao Du, Hang Lin, Xiaodong Fu, Qinghe Niu, Chao Yin   +8 more
doaj   +1 more source

Rational approximation for solving an implicitly given Colebrook flow friction equation [PDF]

, 2019
The empirical logarithmic Colebrook equation for hydraulic resistance in pipes implicitly considers the unknown flow friction factor. Its explicit approximations, used to avoid iterative computations, should be accurate but also computationally efficient.
Brkić, Dejan, Praks, Pavel
core   +5 more sources

Rock mass characterization coupled with seismic noise measurements to analyze the unstable cliff slope of the Selmun Promontory (Malta) [PDF]

, 2017
In the Mediterranean area, cliff slopes represent widespread high-risk landforms as they are highly frequented touristic places often interested by landslide processes.
D’Amico, Sebastiano, Iannucci, Roberto, Martino, Salvatore, Paciello, Antonella   +3 more
core   +1 more source

Uncertainty quantification based on symbolic regression and probabilistic programming and its application

Machine Learning with Applications
The joint roughness coefficient (JRC) is critical to evaluate the strength and deformation behavior of joint rock mass in rock engineering. Various methods have been developed to estimate JRC value based on the statistical parameter of rock joints.
Yuyang Zhao, Hongbo Zhao
doaj   +1 more source

EUROCODES: BACKGROUND & APPLICATIONS: Elaboration of maps for climatic and seismic actions for structural design with the Eurocodes [PDF]

, 2016
Activities for promotion of policies for sustainable construction in the Balkan region Guidance for countries adopting the Eurocodes State-of-the-art material to elaborate maps for seismic and climatic actions for structural design Experience of the non ...
AKKAR Sinan, APOSTOLSKA Roberta, APOSTOLSKA Roberta, CROCE Pietro, DANCIU Laurentiu, DIMOVA Silvia, DIMOVA Silvia, FARDIS Michael, FORMICHI Paolo, GOCHEVA Anelia, KALE Özkan, LUECHINGER Paul, MALAKATAS Nikolaos, NIKOLOV Dimitar, PINTO VIEIRA Artur, PINTO VIEIRA Artur, RAJČIĆ Vlatka, RAPOSO DE M. DO N. E S. DE SOTTO MAYOR Maria Luisa, RAPOSO DE M. DO N. E S. DE SOTTO MAYOR Maria Luisa, YAKUT Ahmet   +19 more
core   +1 more source

A New Characterization Method for Rock Joint Roughness Considering the Mechanical Contribution of Each Asperity Order

Applied Sciences, 2021
The morphology of the joint surface is multi-scale, and it can be divided into first-order asperity (waviness) and second-order asperity (unevenness). At present, the joint roughness characterization formula considers only the morphology contribution of ...
Zhouhao Yuan, Yicheng Ye, Binyu Luo, Yang Liu   +3 more
doaj   +1 more source