ISO/TS 17892-10-2004 土工勘查和检验.土壤的实验室检验.第10部分:直接剪切试验

标准号：ISO/TS 17892-10-2004
中文标准名称：土工勘查和检验.土壤的实验室检验.第10部分:直接剪切试验
英文标准名称：Geotechnical investigation and testing - Laboratory testing of soil - Part 10: Direct shear tests
标准类型：P13
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：P13
国际标准分类号：13.080.20;93.020
适用范围：This document specifies laboratory test methods to establish the effective shear strength parameter for soils within the scope of the geotechnical investigations according to prEN 1997-1 and -2. The test method consists of placing the test specimen in the direct shear device, applying a pre-determined normal stress, providing for draining (and wetting if required) of the test specimen, or both, consolidating the specimen under normal stress, unlocking the frames that hold the specimen, and displacing one frame horizontally with respect to the other at a constant rate of shear-deformation and measuring the shearing force, and horizontal displacements as the specimen is sheared. Shearing is applied slowly enough to allow excess pore pressures to dissipate by drainage so that effective stresses are equal to total stresses. Direct shear tests are used in earthworks and foundation engineering for the determination of the effective shear strength of soils.