Results 121 to 130 of about 186 (158)

Effects of temperature and stress on the time-dependent behavior of Beishan granite

International Journal of Rock Mechanics and Minings Sciences, 2017
• The time-dependent behavior of the Beishan granite at different T and stress level is studied.
Yingchun Li
exaly   +2 more sources

Evolution of thermal damage and permeability of Beishan granite

Applied Thermal Engineering, 2017
Abstract Thermal damage in Beishan granite subjected to high temperature treatment (from 100 °C to 800 °C at different heating rates, ranging from 1 to 15 °C/min) is studied in order to assess the thermal effect on physical and mechanical properties.
Shiwan Chen, Chunhe Yang, Guibin Wang
openaire   +1 more source

Damage stress and acoustic emission characteristics of the Beishan granite

International Journal of Rock Mechanics and Mining Sciences, 2013
• Crack initiation stress ( σ ci ) and crack damage stress ( σ cd ) of the Beishan granite under uniaxial and triaxial compressions are determined.
X.G. Zhao, M. Cai, J. Wang, L.K. Ma
openaire   +1 more source

Determination of the effective diffusion coefficient for 125I− in Beishan granite

Radiochimica Acta, 2008
With the policy of active development of nuclear energy in China in the following 20 years or more, the high-level radioactive wastes and spent fuels will increase considerably. In order to dispose of these wastes safely, China plans to construct a geological repository in the middle of the 21st century.
C. J. Lu, C. L. Liu, T. Chen, J. Wang, X. Y. Wang, R. Su, J. Y. Sun, R. X. Yang, X. S. Zhang   +8 more
exaly   +2 more sources

Experimental characterisation of thermo-mechanical coupling properties of Beishan granite

European Journal of Environmental and Civil Engineering, 2015
With the help of MTS815 rock mechanics test system and 3D acoustic emission monitoring system, a series of thermo-mechanical coupling tests at temperatures in the range of 23–90 °C and confining pressures from 5 to 30 MPa are carried out, to investigate the thermo-mechanical properties of Beishan granite.
Jianfeng Liu
exaly   +2 more sources

Rockburst Behaviors of Beishan Granite Subjected to Instantaneous Unloading

2013 Fourth International Conference on Digital Manufacturing & Automation, 2013
Deep geological disposal is an internationally accepted way to deal with high-level radioactive waste. A better understanding of mechanical characteristics of host rock is very important for the stability of underground excavation and its long-term safety during operation.
Xing-guang Zhao, Li-ke Ma, Rui Su
openaire   +1 more source

The influence of pH on diffusion of 75Se(IV) in Beishan granite

Journal of Radioanalytical and Nuclear Chemistry, 2018
The through-diffusion method and batch sorption experiments were used to explore the influence of pH on the diffusion behavior of 75Se(IV) in matrix Beishan granite (BsG). In the pH range of 2.0–8.5, the De values of 75Se(IV) in BsG decreased first and then increased with pH increasing, while the changing trend of Kd was nearly opposite.
Chunli Wang, Xiaoyu Yang, Fangxin Wei, Jiangang He, Liye Qi, Chunli Liu   +5 more
openaire   +1 more source

Effect of stress induced damage on gas permeability of Beishan granite

European Journal of Environmental and Civil Engineering, 2020
Permeability is the key factor to control long-term stability of surrounding rock of high level radioactive waste (HLW) geological repository.
Hai-Yang Zhang, Liang Chen, Jian Liu, Chun-Ping Wang, Li-Ke Ma, Wei Wang   +5 more
openaire   +1 more source

Experimental study on permeability of Beishan granite

2011
Rock engineers involved in the design and construction of nuclear waste repositories need to know the permeability of Beishan granite under high stress. A series of permeability tests were performed on specimens of Beishan granite at different axial stress levels and confining stresses.
Tham, LG, Ma, LK, Wang, J, Zhao, XG
openaire   +2 more sources

Shear behavior of Beishan granite fractures after thermal treatment

Engineering Fracture Mechanics, 2019
Abstract In this study direct shear tests on a series of thermally-treated Beishan granite samples including a rough fracture were conducted, and the thermal treatment temperature was up to 400 °C. Particle mechanics models for Beishan granite were also built up to examine the characteristics of thermally-induced and shear-induced microcracks in ...
Zhihong Zhao, Zihao Dou
exaly   +2 more sources