BS EN ISO 22476-11:2017确立了设备要求、执行和报告指南 平板膨胀计试验。注:本文件满足作为岩土工程设计一部分的平板膨胀计试验的要求 根据EN 1997-1和EN 1997-2进行调查和测试。基本的平板膨胀仪测试包括将一个叶片形钢探针垂直插入土壤中 一个薄的可膨胀圆形钢膜安装在一个面上，两个面齐平 选定深度间隔的压力:土壤对膜施加的接触压力 当膜与叶片齐平时，以及随后，当中心 膜的位移达到1.10 mm。扁铲侧胀试验的结果主要用于获取土壤地层学、原位状态的信息 应力、变形特性和抗剪强度。它还用于检测粘土中的滑动面。这个 平板膨胀仪试验最适用于粘土、粉土和砂土，其中颗粒比砂土小 膜的大小。交叉引用:EN 1997-2:2007ISO 22476-1:2012EN 1997-1:2004购买本文件时可获得的所有当前修改件均包含在购买本文件中。

BS EN ISO 22476-11:2017 establishes guidelines for the equipment requirements, execution of and reporting on flat dilatometer tests.NOTE This document fulfils the requirements for flat dilatometer tests as part of the geotechnical investigation and testing according to EN 1997-1 and EN 1997-2.The basic flat dilatometer test consists of inserting vertically into the soil a blade-shaped steel probe with a thin expandable circular steel membrane mounted flush on one face and determining two pressures at selected depth intervals: the contact pressure exerted by the soil against the membrane when the membrane is flush with the blade and, subsequently, the pressure exerted when the central displacement of the membrane reaches 1,10 mm.Results of flat dilatometer tests are used mostly to obtain information on soil stratigraphy, in situ state of stress, deformation properties and shear strength. It is also used to detect slip surfaces in clays. The flat dilatometer test is most applicable to clays, silts and sands, where particles are small compared to the size of the membrane.Cross References:EN 1997-2:2007ISO 22476-1:2012EN 1997-1:2004All current amendments available at time of purchase are included with the purchase of this document.