Results 31 to 40 of about 2,525 (166)

Implications for identification of principal stress directions from acoustic emission characteristics of granite under biaxial compression experiments

Journal of Rock Mechanics and Geotechnical Engineering, 2023
The rock fracture characteristics and principal stress directions are crucial for prevention of geological disasters. In this study, we carried out biaxial compression tests on cubic granite samples of 100 mm in side length with different intermediate ...
Longjun Dong, Yongchao Chen, Daoyuan Sun, Yihan Zhang, Sijia Deng   +4 more
doaj   +1 more source

Experimental Research on Brittleness and Rockburst Proneness of Three Kinds of Hard Rocks under Uniaxial Compression

Advances in Civil Engineering, 2021
Rockburst is a highly destructive geological disaster caused by excavation and unloading of hard and brittle rock mass under high geostress environment. Quantitative evaluation of rock brittleness and rockburst proneness is one of the important tasks in ...
Rongchao Xu, Yiding Jin, Yumin Zhang
doaj   +1 more source

Influence of fracture parameters on hydraulic shear seepage characteristics of granite

Case Studies in Thermal Engineering
To reveal the influence mechanism of different fracture parameters on the permeability characteristics of hot dry rock after hydraulic shear. The self-made high temperature true triaxial hydraulic shear test device and rock roughness profile tester were ...
Jupeng Tang, Honghao Yu, Zhihao Wei, Xiao Zhang   +3 more
doaj   +1 more source

Fracture toughness of stripa granite cores

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1986
There is a growing interest in the study of fracture parameters of rock material, but to date no standard testing method for measuring the fracture toughness of rock exists.
Sun, Zongqi, Ouchterlony, Finn
openaire   +3 more sources

An Experimental Investigation on the Characteristics of Excavation-Induced Failure of Rocks Surrounding a Shaft

Advances in Civil Engineering
A series of true triaxial compression (TTC) tests was conducted on granite specimens to investigate their fracture behavior. The granite was sampled from a 1500-m-deep exploration borehole located on the Sanshandao gold field in Shandong Province, China,
Huanxin Liu, Zhihai An, Xingquan Liu, Xi Wang, Zhen Liu   +4 more
doaj   +1 more source

Dynamic fracture properties and criterion of cyclic freeze-thaw treated granite subjected to mixed-mode loading

Journal of Rock Mechanics and Geotechnical Engineering
Rock masses in high-elevation or cold regions are vulnerable to the combined effects of freeze-thaw (F-T) weathering and dynamic mixed-mode loading, posing a serious threaten to the safety and stability of geotechnical engineering.
Zhihui Cui, Feng Dai, Yi Liu, Biao Zhang, Mingdong Wei, Qi Zhang   +5 more
doaj   +1 more source

Investigation of Relation between Fracture Scale and Acoustic Emission Time-Frequency Parameters in Rocks

Shock and Vibration, 2018
To investigate relation between fracture scale and acoustic emission time-frequency parameters in rocks, experiments of acoustic emission monitoring of granite uniaxial compression were carried out.
Junwen Zhang
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Experimental study on microstructure evolution of Beishan granite under high temperature conditions

Yantu gongcheng xuebao
Understanding the evolution of the microstructure and mechanical properties of granite under high temperature conditions is of great significance for the stability evaluation of rock engineering related to safe disposal of nuclear waste, geothermal ...
WU Yun1, 2, 4 , WANG Jiamin3 , HUANG Zhen4, YU Liyuan1, HU Lihua1, 2, LIU Jiangfeng1, WANG Yingchao1
doaj   +1 more source

Combined control mechanism of weathering and tectonics for basement granite of Qiongdongnan Basin, South China Sea

Shiyou shiyan dizhi
Reservoirs within buried hills in petroliferous basins represent a unique area of exploration. Recent discoveries in the Mesozoic granite buried hills of the Qiongdongnan Basin in the South China Sea show promising exploration prospects. Among these, the
Junqiang WANG, Anqing CHEN, Lin HU, Mingcai HOU, Li YOU, Xiaohu HE, Haiyang CAO, Youyuan QUE, Fuhao XIONG, Wenbo WANG   +9 more
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Experimental Study of Temperature Distribution and Evolution Law of Fractured Rock Mass During Heat Transfer Process

Applied Sciences
To investigate the hindering effect of fracture on heat transfer within rock mass, real-time temperature monitoring was conducted on fractured granite heated by different constant-temperature heat sources.
Baoping Xi, Keliu Liu, Qiang Fan, Fuzhi Han, Wenzhuo Zhao   +4 more
doaj   +1 more source