The Elastic–Plastic Damage Analysis of Underground Research Laboratory Excavation for Disposal of High Level Radioactive Waste

The deep geological disposal is an internationally recognized method for the disposal of high level radioactive waste. As an essential facility, the construction safety of underground research laboratory (URL) is very important. Taking the China’s first URL in Beishan, Gansu Province as engineering...

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Bibliographic Details
Published in:Geotechnical and geological engineering 2019-06, Vol.37 (3), p.1793-1811
Main Authors: Ren, Ming-yang, Zhang, Qiang-yong, Liu, Chuan-cheng, Wu, Dong, Ding, Yan-zhi
Format: Article
Language:English
Subjects:
Civil Engineering
Construction
Construction accidents & safety
Construction industry
Damage
Damage assessment
Dredging
Earth and Environmental Science
Earth Sciences
Elastic analysis
Excavation
Geotechnical Engineering & Applied Earth Sciences
Hydrogeology
Joints (timber)
Laboratories
Levels
Mathematical models
Numerical methods
Occupational safety
Original Paper
Plastics
Radioactive waste disposal
Radioactive wastes
Rock masses
Rocks
Stress distribution
Terrestrial Pollution
Underground construction
Waste Management/Waste Technology
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Summary:The deep geological disposal is an internationally recognized method for the disposal of high level radioactive waste. As an essential facility, the construction safety of underground research laboratory (URL) is very important. Taking the China’s first URL in Beishan, Gansu Province as engineering background, considering the influence of arranged joints in rock mass, an elastic–plastic damage numerical method for fractured rock mass is presented and the corresponding subprogram in Flac3D is developed. Based on the numerical calculation of underground research laboratory construction, the optimized excavation scheme of URL is obtained and the distribution rules of surrounding rock displacement field, stress field and plastic damage zone are studied. The research result can provide important guidance for the construction of Beishan URL.
ISSN:0960-3182
1573-1529
DOI:10.1007/s10706-018-0723-4