COUPLED THERMO-HYDRO-MECHANICAL ANALYSIS FOR THE CONCEPTUAL REPOSITORY OF HIGH-LEVEL RADIOACTIVE WASTE IN CHINA
会议名称：《第三届废物地下处置学术研讨会》
会议日期：2010年
学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 08[工学] 09[农学] 0903[农学-农业资源与环境] 0713[理学-生态学]
关 键 词：High-level radioactive waste(HLW) geological repository concept multiple barrier system FLAC3D thermo-mechanical
摘 要：In order to safely dispose of the high-level radioactive waste(HLW),R&D guide of HLW disposal was published in February 2006 in *** spent fuel from nuclear power plants will be reprocessed first,followed by vetrification and final disposal.A conceptual repository 3D configuration comprises a single vertical borehole in a continuous and homogeneous hard rock,containing a canister surrounded by an over-pack and a bentonite layer,and the backfilled upper portion of the gallery using *** take into account in situ stress,geothermal gradient and groundwater of Beishan area,thermal relief of HLW and swelling pressure of buffer/ backfill material made by GMZ01 bentonite,the TM,HM and THM evolution of the whole configuration is simulated over a period of 100 *** results demonstrate that temperature is hardly affected by the *** contrast,the influence of the couplings on the mechanical stresses is *** repository has long-term stability in fully THM coupling action condition.