ISO 17892-8:2018 岩土工程勘察和测试 土壤的实验室测试 第8部分：未固结的未排水三轴试验

标准编号：ISO 17892-8:2018

中文名称：岩土工程勘察和测试 土壤的实验室测试 第8部分：未固结的未排水三轴试验

英文名称：Geotechnical investigation and testing — Laboratory testing of soil — Part 8: Unconsolidated undrained triaxial test

发布日期：2018-02

标准范围

ISO 17892-8:2018规定了松散不排水三轴压缩试验的方法。ISO 17892-8:2018适用于岩土工程勘察范围内压缩荷载下不排水三轴剪切强度的实验室测定。圆柱形试样可包括原状土、重新压实土、重塑土或重塑土，在不排水条件下承受各向同性应力，然后在不排水条件下剪切。该试验允许根据总应力确定剪切强度和应力应变关系。本文件不包括非标准程序，如孔隙压力测量试验或过滤排水试验。注:本文件符合EN 1997？1和EN 1997？2规定的岩土工程勘察和试验的松散不排水三轴压缩试验要求。

ISO 17892-8:2018 specifies a method for unconsolidated undrained triaxial compression tests.ISO 17892-8:2018 is applicable to the laboratory determination of undrained triaxial shear strength under compression loading within the scope of geotechnical investigations.The cylindrical specimen, which can comprise undisturbed, re-compacted, remoulded or reconstituted soil, is subjected to an isotropic stress under undrained conditions and thereafter is sheared under undrained conditions. The test allows the determination of shear strength and stress-strain relationships in terms of total stresses.Non-standard procedures such as tests with the measurement of pore pressure or tests with filter drains are not covered in this document.NOTE This document fulfils the requirements of unconsolidated undrained triaxial compression tests for geotechnical investigation and testing in accordance with EN 1997？1 and EN 1997？2.

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