EFFECT FACTORS ANALYSIS OF DENSITIES OF BUFFER MATERIALS IN GEOLOGICAL REPOSITORIES OF HIGH-LEVEL RADIOACTIVE WASTES IN CHINA

LI Yuxi; HOU Wei; WANG Xuhong; YANG Qiuyu; LYU Tao; XIA Jiaguo; LYU Min; YIN Yue

doi:10.13204/j.gyjzG20063009

Volume 50 Issue 9

Nov. 2020

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2020 > 50(9): 25-29,54

Ding Youliang, Li Aiqun. INFLUENCE OF HIGH-ORDER VIBRATION MODES ON THE SEISMIC RESPONSE OF STEEL TOWER BUILT ATOP OF A HIGH-RISE BUILDING[J]. INDUSTRIAL CONSTRUCTION, 2005, 35(8): 100-102. doi: 10.13204/j.gyjz200508025

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LI Yuxi, HOU Wei, WANG Xuhong, YANG Qiuyu, LYU Tao, XIA Jiaguo, LYU Min, YIN Yue. EFFECT FACTORS ANALYSIS OF DENSITIES OF BUFFER MATERIALS IN GEOLOGICAL REPOSITORIES OF HIGH-LEVEL RADIOACTIVE WASTES IN CHINA[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(9): 25-29,54. doi: 10.13204/j.gyjzG20063009

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EFFECT FACTORS ANALYSIS OF DENSITIES OF BUFFER MATERIALS IN GEOLOGICAL REPOSITORIES OF HIGH-LEVEL RADIOACTIVE WASTES IN CHINA

doi: 10.13204/j.gyjzG20063009

China Nuclear Power Engineering Co., Ltd., Beijing 100840, China

Received Date: 2020-06-30
Publish Date: 2020-11-23

Abstract

Abstract

The geological disposal of high-level radioactive wastes can realize long-term containment and isolation to radioantive wastes by multi-barrier systems constructed of natural barriers (surrounding rock) and engineering barriers. The buffer materials basically composed of bentonite rich montinorillonie were built up an important engineering barrier, which ought to be of good thermal conductivity, low permeability, stable chemical and favourable mechanical properties, a strong ability to absorb nuclides and so on. They must ensure a certain saturated density in the disposal environment for a long time. The sizes of disposal holes, blocks and containers, the densities and moisture contents of buffer materials significantly influenced on saturated densities of buffer materials. Based on properties of Gaomiaozi bentonite of Inner Mongolia, combined with the conceptual design of high-level radioactive-waste geological disposal and design requirements of buffer materials, parameter influencing factors of saturated densities for buffer materials were analyzed, which could provide reference to the design of buffer materials for geological disposal of high-level radioactive wastes in China.
- high-level radioactive waste,
- geological disposal,
- buffer material,
- saturated density,
- influencing factors analysis

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References(7)

References

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