本文關(guān)鍵詞： 高放廢物處置庫 水文地質(zhì) 同位素 地下水 雅滿蘇和天湖地段　出處：《地質(zhì)學(xué)報》2016年02期 　論文類型：期刊論文

【摘要】：高放廢物地質(zhì)處置是將高放廢物與人類環(huán)境安全隔離的有效途徑。高放廢物處置庫的圍巖通常為低滲透的巖體,其安全性在很大程度上取決于圍巖對核廢物的屏障功能和作為核素遷移載體的裂隙水運動特征。因此,開展處置庫場址水文地質(zhì)評價工作尤為重要。新疆雅滿蘇和天湖預(yù)選地段是我國高放廢物處置庫預(yù)選地段之一�；◢弾r是選定的圍巖。在過去的3年里,為了認識該地段地下水的形成機制和更新能力,提供該區(qū)處置庫場址篩選和評價的依據(jù),在該區(qū)開展了區(qū)域水文地質(zhì)調(diào)查和地下水樣品采集。根據(jù)調(diào)查結(jié)果和樣品測試數(shù)據(jù),本文主要討論了該地段地下水同位素特征及其水文地質(zhì)意義,結(jié)果表明,地下水δ~2H值主要分布在10.6‰至-82.5‰之間,平均值-46.1‰;δ~(18)O值主要分布在10.2‰至-9.8‰‰之間,平均值-2.06‰;地下水氚含量在1TU~46.1TU之間。地下水δ~2H和δ~(18)O散點圖顯示,二者主要落在大氣降水線的附近和下方,表明區(qū)內(nèi)地下水主要源自當?shù)噩F(xiàn)代降水的補給,并經(jīng)受了強烈的蒸發(fā)作用,且深部地下水交替能力明顯弱于淺部地下水。這一認識為該區(qū)處置庫選址和場址評價提供了重要水文地質(zhì)依據(jù)。
[Abstract]:Geological disposal of high-level radioactive waste is an effective way to isolate high-level radioactive waste from human environment safely. The surrounding rock mass of high-level radioactive waste repository is usually low permeability rock mass. Its safety depends to a great extent on the barrier function of surrounding rock to nuclear waste and the characteristics of fissured water movement as a carrier of nuclide migration. It is very important to carry out the hydrogeological evaluation of the disposal depot site. The Tianhu pre-selected area of Yamen Su He in Xinjiang is one of the pre-selected sites in China's high-level radioactive waste disposal depot. Granite is the selected surrounding rock. In the past three years. In order to understand the formation mechanism and renewal ability of groundwater in this area, it provides the basis for site selection and evaluation of the disposal bank in this area. Regional hydrogeological survey and groundwater sample collection have been carried out in this area. Based on the investigation results and sample test data, this paper mainly discusses the isotopic characteristics of groundwater and its hydrogeological significance in this area, the results show that. The 未 ~ (2) H values of groundwater are mainly between 10.6 鈥，

本文編號：1471122