摘要
γ射线因其有无损、快速等特性,而被广泛地应用于无损快速测量。由于土试样在力与水共同作用下,其密度和含水量将同时变化,故在同时测定密度和含水量的变化规律时,应采用到γ射线双源双能法。以核物理学的己有成果为基础,研究了双源双能法在测定土试样的密度和含水量时的理论公式。
As a result of non-destructiveness and quick acting, gamma rays are widely applied to quick and undisturbing measurements. Bulk density and water content of a specimen will simultaneously change under the action of force and water. Two type of isotope and two kinds of gamma rays are adopted in measuring bulk density and water content of the specimen at the same time. The equation is deduced for measuring bulk density and water content of specimen in the triaxial test using two isotopes and two kinds of gamma rays.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2003年第4期569-572,共4页
Chinese Journal of Rock Mechanics and Engineering
基金
国家自然科学基金(59779018)
陕西省自然科学基金(2001C52)
中国科学院寒区旱区环境与工程研究所冻土工程国家重点实验室开放基金(9725)
关键词
土力学
γ射线测试
非饱和土
双源双能
密度和含水量
Density measurement (specific gravity)
Gamma rays
Mechanical variables measurement
Nuclear physics
Soil testing
