E deformation modulus for weathered Sandstone
E deformation modulus for weathered Sandstone
(OP)
Does anyone know a typical values of E for a weathered, for a quick calc, finding it very difficult to locate this information.
It would be greatly appreciated
Many Thanks
It would be greatly appreciated
Many Thanks





RE: E deformation modulus for weathered Sandstone
f-d
¡papá gordo ain’t no madre flaca!
RE: E deformation modulus for weathered Sandstone
RE: E deformation modulus for weathered Sandstone
Deere (1969) presents a correlation between RQD and rock mass modulus. For RQD in the range of 35 to 50 his correlation would suggest a value of 0.1 to 0.3 GPa. Note that this is fairly arbitrary in that the correlation does not take into account the value of the intact rock mass - it's just based on RQD.
Another item of note: Rock mass behavior is stress dependent. Depending on your anticipated stresses, the modulus value may exhibit strain hardening or strain softening behavoir. There are some data to model strain-softening behavior (hyperbolic modulus values). This may be more than you are asking for right now. . . .
f-d
¡papá gordo ain’t no madre flaca!