Nederlands Nederlands
Cone penetration tests (CPT) are commonly performed in order to acquire information about the subsoil and its layers. During a CPT the cone is temporarily halted, while the pore pressure is still recorded. This procedure is mainly done in a layer of which one suspects that it is impermeable. The rate of change in pore pressure is proportional to its permeability: the lower the rate, the lower the permeability. A consultant can derive the permeability of a layer, based on the registrations recorded during this type of test. Following the same procedure as during the preparation of GEF-CPT-Report, i.e. in coorporation with companies active in common day geotechnical engineering, CUR committee E15 has prepared a standard of the exchange of results of dissipation tests.
GEF-DISS-Report
The new standard is described in detail in the GEF-DISS-REPORT document.
Example of a dissipation test.
GEF helpdesk
Any questions or comments on GEF-DISS-Report you might have, can be adressed electronically to the helpdesk of GEF.
GEF community
The latest news on GEF-DISS-Report and other GEF standards can be found on this website via News and information.
Further information
Got interested for any new national standards? Phone or mail ing. A. Jonker of the CUR (telephone +31 182 540630 or e-mail A. Jonker).
Back to: