摘要
用固结仪完成了膨润土及其与砂混合物的一系列膨胀变形试验,由试验结果得到了蒙脱石孔隙比与上覆压力的通用表达式。试验结果表明,膨润土及其与砂混合物的膨胀变形特性与试样的击实条件有关,膨胀变形试验结果反映了膨胀矿物与水的相互作用。
The swelling characteristics of bentonite and sand-bentonite mixture were studied by laboratory tests, which were conducted on an oedometer apparatus. A general relationship between swelling strain and overburden pressure is proposed by the test results. It is shown by the test results that the swelling characteristics are related to the sample compaction conditions, and the swelling deformation takes place due to the interaction between montmorillonite and water.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2003年第3期451-455,共5页
Chinese Journal of Rock Mechanics and Engineering
基金
国家自然科学基金(40201024)资助项目
关键词
膨润土
砂混合物
膨胀试验
核废料
膨胀变形
蒙脱石
soil mechanics,bentonite,nuclear waste,swelling deformation,montmorillonite
