DHARM
N-GEO\OBJ.PM5 884884 GEOTECHNICAL ENGINEERING
- The empirical relationship established by Skempton between the compression index
(Cc) and liquid limit (wL) is ............. - If the initial excess pore pressure is ui and that at a particular instant is u, the consoli-
dation (percent) U is
(a)U =^1 −^100F
HGI
KJu ×
ui (b)U =1 −F
HGI
KJu
ui(c)U =u
uiF
HGI
KJ× (^100) (d)U = 1 + 100
F
HG
I
KJ
u ×
ui
- Even after the complete dissipation of express pore pressure, a little more consolidation
is possible. This is known as ............. - In Terzaghi’s theory of one-dimensional consolidation
(a) plastic lag alone is considered and hydrodynamic lag is ignored.
(b) hydrodynamic lag alone is considered and plastic lag is ignored.
(c) both hydrodynamic and plastic lags are considered.
(d) both hydrodynamic and plastic lags are ignored. - Mathematically speaking, the time taken for 100% consolidation is .............
- For a clay deposit
(a)Cc characterizes the total settlement and Cv the time-rate of settlement.
(b)Cv characterizes the total settlement and Cc time-rate of settlement.
(c) Both Cc and Cv characterize both the aspects of settlement.
(d) neither Cc nor Cv characterizes either of the aspects of settlement. - A clay deposit suffers a total settlement of 5 cm with one way drainage. With two-way
drainage, it suffers a total settlement of
(a) 10 cm (b) 2.5 cm
(c) 20 cm (d)5 cm - When the average degree of consolidation U is less than 60%, the time factor T is given
by ............. - The time factor for a particular average degree of consolidation
(a) depends upon the distribution of initial excess hydrostatic pressure.
(b) is independent of the distribution of initial excess hydrostatic pressure.
(c) depends upon the coefficient of consolidation.
(d) depends upon the drainage path. - Consolidation
(a) is a function of the total stress.
(b) is a function of the neutral stress.
(c) is a function of the effective stress.
(d) does not depend upon the present stress.