Phicometer
Phicometer
(OP)
Is anybody familiar with the use of a device called phicometer? I understand that, this is a device used in connection with the Menard pressuremeter to obtain shear strength and phi values, unfortunatly that is all I know about this test. The firm I'm working for, is providing CMT services to a building construction, as part of the works to be performed an anchored, shotcreted excavation of about 30 feet is being developed. The Geotechnical study performed by another firm, refers that slope stability analyses were based on data obtained using a phicometer, my concern about this issue is that report refers a phi of about 43 degrees and a cohesion of about 820 psi, now for the soils that are being excavated (mostly clayey soils firm to stiff with some lenses of clayey gravel) cohesion does not seem to be high, however phi looks huge for this kind of soils. So I'm looking for some references about the test method, the reliabilityof test results and the cases where this test is applicable.
Thanks in advance for your valuable cooperation.
Best Regards
Thanks in advance for your valuable cooperation.
Best Regards





RE: Phicometer
Basically , you insert a probe in a 60 to 64 mm diameter borehole. The probe has two half shells that can move laterally like a pressuremeter and you then pull on the pobe and repeat this for increasing lateral pressures.
It is an undrained non consolidated test. The article gives an example of tests carried out in a 0/150 mm backfill ( no lab test possible ) and compares values obtained in-situ and in the lab for a clay, a clayey sand and sand. Its main advantage is to obtain values where you can't get samples for the lab.The tool is sold by a company called APAGEO ( they have a web site )
RE: Phicometer
f-d
¡papá gordo ain't no madre flaca!
RE: Phicometer
RE: Phicometer
RE: Phicometer