Laserfiche WebLink
Estimation of Ground Water Table <br /> from CPT Dissipation Tests <br /> Dssipatm of Pcre Fressrre iu)Rl NC clay <br /> V <br /> ���------� Ue <br /> Ue-equilibrium pore pressure <br /> time <br /> Ground so Dlsvpaam at Pore Pressure Su)m Sand <br /> Surface <br /> u <br /> Ue <br /> ` <br /> Dcone Water Table p Ue equilibrium pore pressure <br /> time <br /> Hwater <br /> Oismpatm d Pme Pressure(u)in Dane Sand <br /> V Lllative Sit and HeaN1y OC Qay <br /> Pore Pressure (u) Ue <br /> measured here <br /> Dcone - Depth of Cone rLJeequihbnum pore pressure <br /> Dwater -Depth to Wafer Table o <br /> time <br /> Hwater - head of Water <br /> Water Table Calculation <br /> Dwate r = cone - H water <br /> where Hwater = Ue (depth units) <br /> Useful Conversion Factors 1 psi = 0 704m = 2 31 feet (water) <br /> ltsf = 0 958 bar= 13 9 psi <br /> 1m = 3 28 feet <br /> EGG <br /> Cregg In Situ, Inc <br />