NUMERICAL MODELLING OF SUBSURFACE COUPLED THM PROCESSES IN A SUB-REGIONAL-SCALE GROUNDWATER FLOW SYSTEM IN A CANADIAN SHIELD SETTING DURING A GLACIAL EVENT: I. CONCEPTUAL MODEL DEVELOPMENT
A Deep Geologic Repository situated on the Canadian Shield will be subject to long-term climate change that will markedly alter surface conditions as a result of glaciation and permafrost penetration. Task E of the international DECOVALEX THM-C program is a systematic numerical case study of the subsurface THM processes and mechanisms arising from long-term climate change. The case study focuses on predicting the magnitudes and rates of change in groundwater flow and state of stress caused by time-varying glacial boundary conditions acting on a 1.5-km deep, sub-regional scale (≈100 km2), fractured Shield flow system, which includes a connected Fracture-zone Network Model (FNM). The boundary conditions are provided by a continental-scale Laurentide ice-sheet scenario from the University of Toronto Glacial Systems Model. This paper summarizes the initial Task E activities of conceptual and numerical model development and testing, including: a systematic and traceable approach utilizing scientific visualization methods and tools to simplify the full FNM to one amenable to coupled THM modelling and testing the simplified FNM by comparing Task E steady-state flow simulations using the simplified FNM with alternative simulations using both the full and simplified FNMs.
Tin Chan Mark R.Jensen Frank W.Stanchell Andre Vorauer
Atomic Energy of Canada Limited (AECL) Ontario Power Generation (OPG)
国际会议
南京
英文
52-61
2006-05-22（万方平台首次上网日期，不代表论文的发表时间）