thread256-179060
Refer to previous thread by peterb1441 on 21/7/2007, i wish to know the same, is there any correlation between pile driving records and SPT N values? For example, i have a typical borelog with SPT N value which allow me to design a pile foundation (say 250 diam. concrete spun...
Refer to Subject, im stil confuse the formula used which is Cv = 0.111 H2/ t90, instead of the normally used formula Cv = 0.848 d2/ t90... Based on wat i could understand is that "H" is refer to the total height but the "d" refer to drainage depth.... for a two way vertical drainage... the "d"...
