Results 31 to 40 of about 2,048 (300)

Strength anisotropy of jointed rock slope considering mining damage: a numerical analysis method

open access: yesGeomatics, Natural Hazards & Risk, 2020
A combination of Hoek–Brown strength criterion and geological strength index (GSI) rock mass classification is a common method to determine rock mass strength.
Yuan Chang, Laishan Chang, Fuqiang Ren
doaj   +1 more source

Influence of degree of interlock on confined strength of jointed hard rock masses

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2020
The strength of jointed rock mass is strongly controlled by the degree of interlock between its constituent rock blocks. The degree of interlock constrains the kinematic freedom of individual rock blocks to rotate and slide along the block forming joints.
Navid Bahrani, Peter K. Kaiser
doaj   +1 more source

Electrical resistivity of a jointed rock mass with an anomaly

open access: yes, 2020
It is of great importance to estimate the spatial characteristics of a jointed rock mass in a diverse range of disciplines. Although electrical resistivity prospecting can facilitate this, limited attempts have been made to perform electric field ...
Ryu, Hee-Hwan   +2 more
core   +1 more source

Strength of jointed rock masses [PDF]

open access: yesGéotechnique, 1983
Jointed rock masses comprise interlocking angular par- ticles or blocks of hard brittle material separated by discontinuity surfaces which may or may not be coated with weaker materials. The strength of such rock masses depends on the strength of the intact pieces and on their freedom of movement which, in turn, depends on the number, orientation ...
openaire   +1 more source

Strength of massive to moderately jointed hard rock masses

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2019
The Hoek-Brown (HB) failure criterion and the geological strength index (GSI) were developed for the estimation of rock mass strength in jointed and blocky ground where rock mass failure is dominated by sliding along open joints and rotation of rock ...
R.P. Bewick, P.K. Kaiser, F. Amann
doaj   +1 more source

Energy damage evolution mechanism of non-across jointed rock mass under uniaxial compression

open access: yesYantu gongcheng xuebao, 2019
Energy accumulation and energy release appear evidently during the whole deformation process of jointed rock mass. In order to explore the energy evolution law of jointed rock mass under loading condition, the uniaxial compression experiment and the ...
WANG Gui-lin 1,2, ZHANG Liang 1,2, XU Ming 1,2, LAING Zai-yong 1, RANG Long-bao 1
doaj   +1 more source

The Method of Determining Excavation Damaged Zone by Acoustic Test and the Application in Engineering Cases

open access: yesAdvances in Civil Engineering, 2021
It is very important to accurately determine the depth of excavation damaged zone for underground engineering excavation and surrounding rock stability evaluation, and it can be measured by acoustic test, but there is no quantitative method for analysis ...
Qian-Cheng Sun   +4 more
doaj   +1 more source

Seepage Flow Properties of a Columnar Jointed Rock Mass in a True Triaxial Experiment

open access: yesGeofluids, 2021
A columnar jointed rock mass is a type of rock mass with strong geometric anisotropy and high interface permeability. Its seepage characteristics pose new challenges to the construction and maintenance of the Baihetan Hydropower Station on the Jinsha ...
Yanxin He   +5 more
doaj   +1 more source

Method for preparing artificial columnar jointed rock mass specimens by using 3D printing technology

open access: yesYantu gongcheng xuebao, 2018
Taking regular hexagonal columnar jointed rock mass as an object, a method for preparing artificial columnar jointed rock mass specimens is proposed based on 3D printing technology.
XIAO Wei-min 1,2, HUANG Wei 1,2, DING Mi 1, LI Zhi-jian 1
doaj   +1 more source

Analysis on the evolution law of creep-fatigue failure energy of deep anchored jointed rock mass

open access: yesZhongguo dizhi zaihai yu fangzhi xuebao, 2022
In order to explore the mechanical properties of deep rock masses under disturbance loads such as blasting and excavation, laboratory tests of anchored rock masses under creep-fatigue loads were carried out, and the law of energy evolution was further ...
Yang SONG, Hui YANG, Yongqi LI, Bo FAN
doaj   +1 more source

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