Main outcomes from in situ thermo-hydro-mechanical experiments programme to demonstrate feasibility of radioactive high-level waste disposal in the Callovo-Oxfordian claystone

被引：90
作者：
Armand, G. [1 ]
Bumbieler, F. [1 ]
Conil, N. [1 ]
de la Vaissiere, R. [1 ]
Bosgiraud, J. -M. [2 ]
Vu, M. -N. [2 ]
机构：
[1] Meuse Haute Marne Underground Res Lab, F-55290 Andra, Bure, France
[2] Andra, F-92298 Chatenay Malabry, France
来源：
JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING | 2017年 / 9卷 / 03期
关键词：
In situ experiments; Claystone; Thermo-hydro-mechanical (THM) behaviour; Research programme; Radioactive high-level waste (HLW) disposal; CLAY; BEHAVIOR; ANISOTROPY; ATLAS;
D O I：
10.1016/j.jrmge.2017.03.004
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
In the context of radioactive waste disposal, an underground research laboratory (URL) is a facility in which experiments are conducted to demonstrate the feasibility of constructing and operating a radioactive waste disposal facility within a geological formation. The Meuse/Haute-Marne URL is a site-specific facility planned to study the feasibility of a radioactive waste disposal in the Callovo-Oxfordian (COx) claystone. The thermo-hydro-mechanical (THM) behaviour of the host rock is significant for the design of the underground nuclear waste disposal facility and for its long-term safety. The French National Radioactive Waste Management Agency (Andra) has begun a research programme aiming to demonstrate the relevancy of the French high-level waste (HLW) concept. This paper presents the programme implemented from small-scale (small diameter) boreholes to full-scale demonstration experiments to study the THM effects of the thermal transient on the COx claystone and the strategy implemented in this new programme to demonstrate and optimise current disposal facility components for HLW. It shows that the French high-level waste concept is feasible and working in the COx claystone. It also exhibits that, as for other plastic clay or claystone, heating-induced pore pressure increases and that the THM behaviour is anisotropic. (C) 2017 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
引用
收藏
页码：415 / 427
页数：13
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