ISO 17892-7:2017 岩土工程勘察和测试 土壤的实验室测试 第7部分：无侧限压缩试验返回

标准编号：ISO 17892-7:2017

中文名称：岩土工程勘察和测试 土壤的实验室测试 第7部分：无侧限压缩试验返回

英文名称：Geotechnical investigation and testing — Laboratory testing of soil — Part 7: Unconfined compression test

发布日期：2017-11

标准范围

ISO 17892-7:2017规定了无侧限压缩试验的方法。ISO 17892-7:2017适用于岩土工程勘察范围内未扰动、重新压实、重塑或重塑土的均质试样在压缩荷载下的无侧限抗压强度测定。该试验方法可用于估算土壤的不排水抗剪强度。值得注意的是，在本试验期间，不会阻止排水。因此，不排水抗剪强度的估计值仅适用于低渗透性土壤，其在试验期间表现为充分不排水。注:根据EN 1997？1和EN 1997？2，本文件满足岩土工程勘察和试验的无侧限压缩试验要求。

ISO 17892-7:2017 specifies a method for the unconfined compression test.ISO 17892-7:2017 is applicable to the determination of the unconfined compressive strength for a homogeneous specimen of undisturbed, re-compacted, remoulded or reconstituted soil under compression loading within the scope of geotechnical investigations.This test method is useful to estimate the undrained shear strength of soil. It is noted that drainage is not prevented during this test. The estimated value for undrained shear strength is, therefore, only valid for soils of low permeability, which behave sufficiently undrained during the test.NOTE This document fulfils the requirements of unconfined compression tests for geotechnical investigation and testing in accordance with EN 1997？1 and EN 1997？2.

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