This is a local expansion of the diameter of the cpt sounding tube on some distance above the friction sleeve. The pop-up section on the cabin roof provides room for the hydraulic ram to operate. The penetration of the rod is measured after each drop. 80 kg), implied that the maximum measurable cone resistance was not that big. Figure 62 representative piezocone sounding for soil layering detection at sandpoint, idaho. While holding the rod vertically, the weight is raised to the top of the rod 575 mm above the anvil and dropped.
In addition to reading online, this title is available in these formats:
There’s lots more to be said about this innovative cpt equipment. Up to then all cpt data were red from the dial of the pressure gauge and noted down manually. Seismic cone penetration testing (scpt) sounding provides a rapid and cost-effective method for directly measuring shear wave velocity of soils in situ.