Jacob_PE
Well-known member
I've reread the CERM and All-in-one chapters on retaining walls and am still having issues. I'm having trouble with the statement: 'The lateral strain required to fully mobilize the soil passive pressure is much greater than that required to fully mobilize the soil active pressure.'
According to the all-in-one, it takes about 10 times the wall movement to develop full passive resistance as it takes to develop the full active forces. Can someone explain this further for me?
Lateral strain, related to steel testing, is the percentage decrease in diameter, what is lateral strain for retaining walls?
How are lateral resistances from passive soil and passive pressures related?
Im also confused on the concept that there is a wall movement required to develop minimum (active) or maximum (passive) pressures.
Can someone explain why the theory discusses the development of pressures due to movement, aren't retaining walls always at rest and the soil pressure behind the wall generally always the same?
According to the all-in-one, it takes about 10 times the wall movement to develop full passive resistance as it takes to develop the full active forces. Can someone explain this further for me?
Lateral strain, related to steel testing, is the percentage decrease in diameter, what is lateral strain for retaining walls?
How are lateral resistances from passive soil and passive pressures related?
Im also confused on the concept that there is a wall movement required to develop minimum (active) or maximum (passive) pressures.
Can someone explain why the theory discusses the development of pressures due to movement, aren't retaining walls always at rest and the soil pressure behind the wall generally always the same?