Question

The delay caused in consolidation by the slow drainage of water out of a saturated soil mass is called as __________

(a) hydrodynamic lag

(b) hydrodynamic pressure

(c) hydrostatic pressure

(d) pore pressure

I had been asked this question in an online interview.

The above asked question is from Consolidation Process topic in portion One Dimensional Consolidation of Geotechnical Engineering I

Answer 1

The correct option is (a) hydrodynamic lag

For explanation I would say: The hydrodynamic pressure, hydrostatic pressure and pore pressure are all the same and they represent the pressure that builds up in pore water due to load. The hydrodynamic lag is the delay caused in consolidation by the slow drainage of water out of a saturated soil mass.