Flow through Anisotropic Medium
Trending Questions
Q. A homogeneous earth dam is 43 m high with 3 m as free board and a 30 m long horizontal filter at the downstream end. The flownet drawn in the dam section consists of 5 flow channels and 15 potential drops. If the dam is 500 m long and the permeability of the material of the dam is uniformly 3×10−3 m/s, the total discharge permeating through the body of the dam will be
- 30m3/s
- 36m3/s
- 39m3/s
- 20m3/s
Q. For an anisotropic soil, permeability in x and y direction are kxandky respectively in a two dimensional flow. The effective permeability keff for the soil is given by
- kx+ky
- kxky
- (k2x+k2y)1/2
- (kx×ky)1/2
Q. Two observation wells penetrated into a confined aquifer and located 1.5 km apart in the direction of flow, indicate head of 45m and 20 m. If the coefficient of permeability of the aquifer is 30 m/day and porosity is 0.25 the time of travel of an inert tracer from one well to another...... days.
- 750
- 900
- 1120
- 430
Q. An anisotropic soil deposit has coefficient of permeability in vertical and horizontal directions as kzandkx, respectively. For constructing a flow net, the horizontal dimension of the problem's geometry is transformed by a multiplying factor of
- kzkx
- kxkz
- √kzkx
- √kxkz
Q. A homogeneous anisotropic earth dam which is 20 m high, is constructed on an impermeable foundation. The coefficients of permeability of the soil used for the construction of the dam, in the horizontal and vertical directions are 4.8 × 10−8m/s and 1.6 × 10−8m/s respectively. The water level on the reservoir side is at 18m from the base of the dam; downstream side is dry. It is seen that there are 4 flow channels and 18 equipotential drops in a square flow net drawn in the transformed dam section. The quantity of seepage per unit length is _____ × 10−8 m3/s/m through the dam.
- 11.08
