Helical Probe Testing? 1

[shiftersteve]

I found an article written on the ASTM website abouut helical probe testing. The article is dated 1988.

http://www.astm.org/DIGITAL_LIBRARY/JOURNALS/GEOTECH/PAGES/GTJ10004J.htm

Can anyone refer to someone who is still performing tests with this methodology?

Steve Frank
Apex Designs

 

[PSlem]

It is popular in Atlanta for residential footings. We use a 3/4" swing bit brace bit welded to a rod on one end and a coupling nut on the other and a 150 "# torque wrench. Bearing is 50 x reading in PSF.

 

[shiftersteve]

The last ASTM data I've found on this is from 1988. Does anyone know if more recent ASTM tests have been performed with the HPTs and can point me to that link? Or of any other independent tests that have been conducted to compare and validate the HPTs use to the SPT and CPT methods?

 

[PSlem]

Selvadurai, A.P.S. (1984) The use of auger type devices for the in-situ testing of soft sensitive clays, Geotechnical Engineering, Vol.15, pp.59-70.
I assume a British journal. I have not found a source, so if you do, please post.