机构地区: 西安交通大学
出 处: 《岩石力学与工程学报》 2003年第4期569-572,共4页
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.