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Correction of dynamic Brazilian disc tensile strength of rocks under preloading conditions considering the overload phenomenon and invoking the Griffith criterion被引量：1
《Journal of Rock Mechanics and Geotechnical Engineering》2023年第8期1986-1996,共11页Kaiwen Xia Yuchao Yu Bangbiao Wu Wei Yao 
We acknowledge the funding support from the National Natural Science Foundation of China(Grant Nos.42141010,51879184 and 12172253).
Dynamic tensile failure is a common phenomenon in deep rock practices,and thus accurately evaluating the dynamic tensile responses of rocks under triaxial pressures is of great significance.The Brazilian disc(BD)test ...
关键词：Dynamic brazilian disc test Overload phenomenon Dynamic tensile strength Hydrostatic pressure Griffith criterion 
Estimation of fracture size and azimuth in the universal elliptical disc model based on trace information被引量：3
《Journal of Rock Mechanics and Geotechnical Engineering》2023年第6期1391-1405,共15页Jichao Guo Jun Zheng Qing Lü Jianhui Deng 
funded by National Natural Science Foundation of China(Grant No.41972264);Zhejiang Provincial Natural Science Foundation of China(Grant No.LR22E080002);the Observation and Research Station of Geohazards in Zhejiang,Ministry of Natural Resources,China(Grant No.ZJDZGCZ-2021).
The geometric characteristics of fractures within a rock mass can be inferred by the data sampling from boreholes or exposed surfaces.Recently,the universal elliptical disc(UED)model was developed to represent natural...
关键词：Universal elliptical disc(UED)model Rock mass Discrete fracture network(DFN) Optimization algorithm Inverse problem 
Thermal effects on fracture toughness of cracked straight-through Brazilian disk green sandstone and granite被引量：4
《Journal of Rock Mechanics and Geotechnical Engineering》2022年第5期1447-1460,共14页Lei Zhou Weiting Gao Liyuan Yu Zheming Zhu Jianxing Chen Xingkai Wang 
funding support from the Sichuan Science and Technology Program (Grant No. 2021YJ0511);the State Key Laboratory for Geo-Mechanics and Deep Underground Engineering,China University of Mining&Technology (Grant No.SKLGDUEK2111);the Key Laboratory of Rock Mechanics and Geohazards of Zhejiang Province (Grant No. ZJRMG-2020-01)。
Cracked straight-through Brazilian disc(CSTBD) samples prepared using two rock materials were used for thermal treatment from room temperature to 700℃. Uniaxial splitting experiments were performed using an automatic...
关键词：High temperature Cracked straight-through Brazilian disc(CSTBD)sample Fracture toughnessm Scanning electron microscope(SEM) 
Time-sensitivity mechanism of rock stress memory properties under tensile stress被引量：1
《Journal of Rock Mechanics and Geotechnical Engineering》2020年第3期528-540,共13页Yuxin Ban Xiang Fu Qiang Xie Jun Duan 
funded by the National Natural Science Foundation of China(Grant No.51779021);Chongqing Natural Science Foundation(Grant No.cstc2019jcyj-msxm2176);Scientific and Technological Research Program of Chongqing Municipal Education Commission(Grant No.KJQN201800745).
In deep underground engineering,understanding of time-related stress memory properties is critical to evaluate the in situ stress conditions of a rock mass.In this study,the time-sensitivity mechanism of the rock stre...
关键词：Acoustic emission(AE) Time-sensitivity Stress memory Kaiser effect(KE) Brazilian disc rotation Power spectrum 
Clearance angle and evolution of depth of cut in actuated disc cutting被引量：4
《Journal of Rock Mechanics and Geotechnical Engineering》2019年第3期644-658,共15页Sevda Dehkhoda Bryce Hill 
Minerals Research Institute of Western Australia, Mining3 and CSIRO for funding this work
This paper investigates the effect of cutter clearance angle on variation of depth of cut and cutting process with an actuated disc cutting(ADC).ADC is a cyclic cutting method with two main characteristics:(i)a disk-s...
关键词：Actuated DISC CUTTING UNDERCUTTING Force model Wobble HARD ROCK CUTTING 
Theoretical prediction of wear of disc cutters in tunnel boring machine and its application被引量：9
《Journal of Rock Mechanics and Geotechnical Engineering》2019年第1期111-120,共10页Zhaohuang Zhang Muhammad Aqeel Cong Li Fei Sun 
supported by the National Natural Science Foundation of China(Grant No.51475163);the National Hightech R&D Program of China(Grant No.2012AA041803)
Predicting the cutter consumption and the exact time to replace the worn-out cutters in tunneling projects constructed with tunnel boring machine(TBM) is always a challenging issue. In this paper, we focus on the anal...
关键词：Full-face rock TUNNEL BORING machine(TBM) DISC CUTTER WEAR prediction 
Dynamic rock tensile strengths of Laurentian granite: Experimental observation and micromechanical model被引量：8
《Journal of Rock Mechanics and Geotechnical Engineering》2017年第1期116-124,共9页Kaiwen Xia Wei Yao Bangbiao Wu 
provided by the Innovative Research Groups of Natural Science Foundation of China (NSFC) (Grant No. 51321065);NSFC (Grant No. 51479131);The research of Kaiwen Xia was partially supported by the Natural Sciences and Engineering Research Council of Canada (NSERC) through the Discovery (Grant No. 72031326)
Tensile strength is an important material property for rocks. In applications where rocks are subjected to dynamic loads, the dynamic tensile strength is the controlling parameter. Similar to the study of static tensi...
关键词：Dynamic tensile strength Brazilian disc(BD) test Semi-circular bending(SCB) Direct tension Split Hopkinson bar 
The influence of jaw's curvature on the results of the Brazilian disc test被引量：2
《Journal of Rock Mechanics and Geotechnical Engineering》2016年第2期127-146,共20页Ch.F.Markides S.K.Kourkoulis 
co-financed by the EU(European Social Fund-ESF);Greek National Funds through the Operational Program "Education and Lifelong Learning" of the National Strategic Reference Framework(NSRF)-Research;Funding Program:THALES:Reinforcement of the interdisciplinary and/or inter-institutional research and innovation
The general contact problem of a disc squeezed between jaws of arbitrary curvature is considered employing Muskhelishvili’s complex potentials.Taking advantage of the general solution introduced,the closed-form expre...
关键词：Brazilian disc test Elastic contact Complex potentials Stress field Frictional stresses 
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