华东交通大学学报
華東交通大學學報
화동교통대학학보
JOURNAL OF EAST CHINA JIAOTONG UNIVERSITY
2014年
4期
100-104
,共5页
膨润土%高放废物%膨胀力%膨胀变形
膨潤土%高放廢物%膨脹力%膨脹變形
팽윤토%고방폐물%팽창력%팽창변형
bentonite%high-level radioactive waste%swelling pressure%swelling deformation
膨润土被选为高放废物深层地质处置库的缓冲/回填材料,有必要研究其力学性能。使用固结仪对不同干密度和含水率的钙基膨润土进行了膨胀变形与膨胀力的试验研究。试验结果表明:膨润土的膨胀应变主要取决于膨润土的初始干密度和含水率,随着初始干密度的增加而增加,随初始含水率的增加膨胀变形逐渐减小。
膨潤土被選為高放廢物深層地質處置庫的緩遲/迴填材料,有必要研究其力學性能。使用固結儀對不同榦密度和含水率的鈣基膨潤土進行瞭膨脹變形與膨脹力的試驗研究。試驗結果錶明:膨潤土的膨脹應變主要取決于膨潤土的初始榦密度和含水率,隨著初始榦密度的增加而增加,隨初始含水率的增加膨脹變形逐漸減小。
팽윤토피선위고방폐물심층지질처치고적완충/회전재료,유필요연구기역학성능。사용고결의대불동간밀도화함수솔적개기팽윤토진행료팽창변형여팽창력적시험연구。시험결과표명:팽윤토적팽창응변주요취결우팽윤토적초시간밀도화함수솔,수착초시간밀도적증가이증가,수초시함수솔적증가팽창변형축점감소。
It is necessary to study the physical and mechanical properties of bentonite, a kind of buffer/backfill material for the deep geological disposal of high level radioactive waste. This paper, with the use of consolidome-ter, carries out experiments to study the swelling deformation and swelling pressure of ca-bentonites that differ in density and water content. Test results show that swelling strain of bentonite is mainly subjected to its initial dry density and water content, increasing as the initial dry density increases and decreasing as the initial water content increases.