ISO/TS 17892-9:2004 土工技术研究和试验 土壤的实验室试验-第9部分： 渗水土壤无侧限三维压缩试验

标准编号：ISO/TS 17892-9:2004

中文名称：土工技术研究和试验 土壤的实验室试验-第9部分： 渗水土壤无侧限三维压缩试验

英文名称：Geotechnical investigation and testing — Laboratory testing of soil — Part 9: Consolidated triaxial compression tests on water-saturated soils

发布日期：2004-10

标准范围

ISO/TS 17892-9:2004涵盖了未受干扰的圆柱形饱水试样的应力-应变关系和有效应力路径的测定，根据prEN 1997-1和-2，在岩土工程勘察范围内，在不排水或排水条件下承受各向同性或各向异性应力，然后在不排水或排水条件下剪切时，重塑或重塑土壤。试验方法提供的数据适用于呈现应力与应变的表格和图表，以及有效应力路径。特别程序，例如:a） 端部润滑试验；b） 局部测量应变或局部测量孔隙压力的试验；c） 无橡胶膜试验；d） 扩展测试；e） 细胞压力变化时的剪切；f） 恒体积剪切（无孔隙压力变化）不包括在内。传统的三轴仪不适合在非常小的应变下测量初始模量。然而，到破坏一半的应变被认为足够大，可以在传统的三轴单元中测量。

ISO/TS 17892-9:2004 covers the determination of stress-strain relationships and effective stress paths for a cylindrical, water-saturated specimen of undisturbed, remoulded or reconstituted soil when subjected to an isotropic or an anisotropic stress under undrained or drained conditions and thereafter sheared under undrained or drained conditions within the scope of the geotechnical investigations according to prEN 1997-1 and -2. The test methods provide data that are appropriate to present tables and plots of stress versus strain, and effective stress paths.Special procedures such as:a) Tests with lubricated ends;b) tests with local measurement of strain or local measurement of pore pressure;c) tests without rubber membranes;d) extension tests;e) shearing where cell pressure varies;f) shearing at constant volume (no pore pressure change)are not covered.The conventional triaxial apparatus is not well suited for measurement of the initial moduli at very small strains. However, strains halfway up to failure are considered to be large enough to be measured in conventional triaxial cells.

标准预览图