BPT for Soil Characterisation
BPT for Soil Characterisation
(OP)
The soil during initial site investigation contains some loose gravelly sand materials with trace cobbles.
Becker Penetration Testing has been proposed for the next stage of SI instead of SPT. The object is to find soil parameters and liquefaction assessment. Would appreciate feedback on pros and cons of the close and open ended BPT.
Becker Penetration Testing has been proposed for the next stage of SI instead of SPT. The object is to find soil parameters and liquefaction assessment. Would appreciate feedback on pros and cons of the close and open ended BPT.





RE: BPT for Soil Characterisation
Open-bit BPT testing has been tried, but was found to give very inconsistent results, possibly due to alternate plugging and clearing of the bit. You can sample with open-bit Becker with compressed air, but all you get is cuttings collected in a cyclone.
Production is fairly rapid since the rods don't have to trip in and out like with a SPT sampler.