Norm

ISO 22476-11:2017 en

Geotechnical investigation and testing - Field testing - Part 11: Flat dilatometer test

73,12

Over deze norm

Status Definitief
Aantal pagina's 17
Commissie Geotechniek
Gepubliceerd op 01-04-2017
Taal Engels
This document establishes guidelines for the equipment requirements, execution of and reporting on flat dilatometer tests.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.

Details

ICS-code 93.020
Nederlandse titel Geotechnical investigation and testing - Field testing - Part 11: Flat dilatometer test
Engelse titel Geotechnical investigation and testing - Field testing - Part 11: Flat dilatometer test
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