Stability Analysis of the New Section in Raising the Existing Composite Wala Dam Using Finite Element Methods

Table 1

Material soil properties of dam foundation and earthfill embankment.

Material	Elastic modulus, E (MPa)	Poisson’s ratio,	Unit weight, γ (kN/m^3)	Friction angle, ɸ ()
Core	200.0	0.35	20	25
Coarse deposit	170.0	0.25	22	35
Fine deposit	170.0	0.35	22	32
Filter	28.0	0.3	22	30
Drain	28.0	0.3	22	—
Riprap	170.0	0.25	23	45
Rockfill	170.0	0.25	23	45
Grouting curtain	—	0.25	22	45
Drainage curtain	—	0.25	22	—
Reinforced concrete	24,000.0	0.15	24	35
RCC	22,000.0	0.2	23	—
Foundation	17,000.0	0.2	20	35