Published December 2020 | Version v1
Journal article Metadata-only

Analytical tool of evolution of topography and repository depth to assess impacts of uplift and erosion for HLW disposal

Creators

  • 1. Japan Atomic Energy Agency, Nuclear Backend Technology Center, Tokai, Ibaraki (Japan)
  • 2. NESI Company Limited, Hitachinaka, Ibaraki (Japan)

Description

An efficient analytical tool to calculate temporal change of topography and repository depth due to uplift and erosion was developed for use in performance assessment of high level radioactive waste geological disposal. The tool was developed as ArcGIS model, incorporating simplified landform development simulation, to enable trial calculation of various conditions such as initial topography, uplift rate and its distributions, and repository location. This tool enables to support decision on which processes, features, and their changes should be taken into account for performance assessment, by calculating topography change and repository depth change under various conditions. (author)

Availability note (English)

Available from DOI: https://doi.org/10.3327/jnuce.27.2_72

Abstract (Japanese)

地層処分の性能評価における隆起・侵食の影響の検討では,地下水流動や処分場から地表への核種移行経路などへの影響の観点から,地形と処分場深度の変化が重要となる.本研究では,初期の地形や隆起速度等の条件や評価期間の想定に対して地形と処分場深度の変化を効率的に評価するためのツール(地形・処分場深度変遷解析ツール)を,簡易的な地形発達シミュレーションモデルを組み込んだArcGISのモデルとして構築した.このような評価は,性能評価における隆起・侵食に起因する地下水流動や地表への核種移行経路への影響の評価に向けて,条件や評価期間に応じた地形や深度の変化についての定量的情報を提示するとともに,性能評価の実施においてどの影響に重点をおくことが効果的・効率的かなどを判断するためにも重要となる.(著者)

Additional details

Additional titles

Original title (Japanese)
地層処分における隆起・侵食影響評価のための地形・処分場深度変遷解析ツールの開発

Identifiers

DOI
10.3327/jnuce.27.2_72;

Publishing Information

Journal Title
Genshiryoku Bakkuendo Kenkyu (Online)
Journal Volume
27
Journal Issue
2
Series
雑誌名:原子力バックエンド研究
Journal Page Range
p. 72-82
ISSN
2186-7135

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
52108294
Subject category
S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
Descriptors DEI
ALTITUDE; COMPUTERIZED SIMULATION; EROSION; GEOLOGIC FAULTS; GEOMORPHOLOGY; GROUND UPLIFT; GROUND WATER; HIGH-LEVEL RADIOACTIVE WASTES; RADIONUCLIDE MIGRATION; RAIN WATER; SHEAR PROPERTIES; TOPOGRAPHY; UNDERGROUND DISPOSAL; UNDERGROUND FACILITIES
Descriptors DEC
ENVIRONMENTAL TRANSPORT; GEOLOGIC FRACTURES; GEOLOGIC STRUCTURES; GEOLOGY; HYDROGEN COMPOUNDS; MANAGEMENT; MASS TRANSFER; MATERIALS; MECHANICAL PROPERTIES; OXYGEN COMPOUNDS; RADIOACTIVE MATERIALS; RADIOACTIVE WASTES; SIMULATION; WASTE DISPOSAL; WASTE MANAGEMENT; WASTES; WATER

Optional Information

Notes
31 refs., 9 figs., 2 tabs.