抚州泥质粉砂岩饱和单轴抗压强度试验研究

岩土工程勘察任务之一是为设计提供相应的岩土设计参数,试验研究表明,反映岩石工程性质的一些主要物理参量之间存在着密切联系,这种联系表现在它们之间有着较好的相关性。本文对抚州泥质粉砂岩的饱和单轴抗压强度与其它物理量之间相关性进行了对比试验研究,通过回归分析,建立了饱和重度与饱和单轴抗压强度、点荷载试验强度与饱和单轴抗压强度以及饱和单轴抗压强度与割线模量和三轴抗压强度的相关方程,初步实现了由易测的物理量估算难测或测试技术要求高的物理量。同时分析了现有点荷载试验强度与单轴抗压强度经验公式的适用性。

Experimental Study of Saturated Uniaxial Compressive Strength Test of Politic Siltstone in Fuzhou

Providing geotechnical parameters for rock and soil is one of the main tasks of geotechnical investigation.The results of test show that many parameters relate to each other.On the basis of laboratory and in-situ test data,the equations of regression among saturated uniaxial compressive strength and saturated unit weight and point loading strength and modulus of secant and triaxial compressive strength of politic siltstone rock in Fuzhou have been established.In the meantime,the fitting of the empirical formula of point loading strength and saturated uniaxial compressive strength have also been analyzed.