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 1997-2:2007
ISO 22476-1:2012
EN 1997-1:2004
All current amendments available at time of purchase are included with the purchase of this document. | File Size : | 1
file
, 2 MB |
| ISBN(s) : | 9780580874918 |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 24 |
| Product Code(s) : | 30310215, 30310215, 30310215 |
| Published : | 07/10/2017 |
| Same As : | BS EN ISO 22476-11:2017 |
