Coulomb's passive pressure equation may be flawed
Coulomb's passive pressure equation may be flawed
(OP)
h ttp://en.w ikipedia.o rg/wiki/La teral_eart h_pressure
When I use the following values, the Kp coefficient a whopping 46!!!
pheta = 5
beta = 20
phi = 30
delta = 15
When using some other combinations, the Kp value can reach in excess of 100! Is the Coulomb's passive pressure equation flawed?
When I use the following values, the Kp coefficient a whopping 46!!!
pheta = 5
beta = 20
phi = 30
delta = 15
When using some other combinations, the Kp value can reach in excess of 100! Is the Coulomb's passive pressure equation flawed?





RE: Coulomb's passive pressure equation may be flawed
RE: Coulomb's passive pressure equation may be flawed
I also tried the Coulomb's equation in a different written differently (Civil Engineering Reference Manual 10th Edition by Lindeberg) and I still got the same answer.
RE: Coulomb's passive pressure equation may be flawed
RE: Coulomb's passive pressure equation may be flawed
RE: Coulomb's passive pressure equation may be flawed
Bottom line is you get what you pay for and wikipdia is worth its price.
RE: Coulomb's passive pressure equation may be flawed
RE: Coulomb's passive pressure equation may be flawed
Very strange.
RE: Coulomb's passive pressure equation may be flawed
In Bowles' 1968 book, his table give Kp = 4.976 for phi = 30, beta = +20, delta = 15, a flat ground surface in front of the wall base, and a vertical wall. Therefore, if the ground slopes downward at 5 degrees, his Kp should be less than 4.976. Bowles' table does not list Kp for the downward slope.