Title

我國高放廢物地質處置研究

Translated Titles

Studies on Geological Disposal of High-level Waste in China

Authors

王駒(Ju Wang);陳偉明(Wei-Ming Chen);蘇銳(Rui Su);範洪海(Hong-Hai Fan)

Key Words

中國 ; 高放廢物 ; 地質處置 ; 地下實驗室 ; 場址評價 ; China ; high-level waste ; geological disposal ; underground research laboratory ; site characterization

PublicationName

原子能科學技術

Volume or Term/Year and Month of Publication

38卷4期(2004 / 07 / 20)

Page #

339 - 342

Content Language

簡體中文

Chinese Abstract

文章提出我國高放廢物地質處置擬採用處置庫選址和場址評價-特定場址地下實驗室-處置庫“三步曲”式技術路線。計劃目標是於2030~2040年前後建成我國的高放廢物地質處置庫。處置對像是玻璃固化塊、超鈾廢物和部分乏燃料,處置庫爲竪井-坑道型,候選圍岩爲花崗岩,位於飽和帶中。已初步選定甘肅北山地區為重點預選區。該區地處戈壁,地殼穩定,人煙稀少,地質條件和水文地質條件有利。現已試驗獲取預選區大量深部地質環境參數。確定使用膨潤土作爲處置庫的回填材料,已獲得一批放射性核素在花崗岩和膨潤土中的吸附、擴散數據,建立了模擬處置庫溫度、壓力和氧化還原條件的實驗裝置。高放廢物地質處置場址評價、放射性核素地球化學行爲、回填材料研究和環境評價研究正在深入進行,並與國際原子能機構等進行了卓有成效的合作。

English Abstract

China has proposed a preliminary R&D program for the deep geological disposal of high-level waste. The development strategy for high-level waste repository includes 3 stages: siting and site characterization, underground research laboratory for a site-specific, and repository. It is expected that a national geological repository will be built and put into operation between 2030~2040. The deep geological disposal method will be used. The disposed waste will be vitrified high-level waste, transuranic waste and some spent fuel from CANDU reactors. The repository concept is shaft-tunnel-silo located in a saturated zone in granite. Because of rare inhabitants, stable crust, and a good geological and hydro-geological condition, the Beishan area, a Gobi desert in Gansu province, is considered as the most potential candidate area for China's geological repository. Bentonite is selected as a sort of backfill for the repository. With in-situ tests, a great number of deep geological data have been obtained. In laboratory, some data of the adsorption and diffusion, related with radioactive-nuclides' migration in granite and bentonite, have also been obtained; some devices have been established to simulate the temperature, pressure, and redox condition of the real repository. Studies on siting evaluation, geochemical behavior of radioactive nuclides, buffer material, and environment impact assessment have also been conducted. Some cooperations with International Atomic Energy Agency have been very successful.

Topic Category 工程學 > 核子工程