For constructing dam on the deep overburden foundation

it is very important for dam body and foundation to control seepage stability and seepage discharge. In view of the deep overburden foundation

inferred two-dimensional seepage form with the finite element method; compiled procedure to compute the project example. The computed result shows: when the permeability coefficient of overburden foundation is bigger

it will not achieve good anti-seepage results until the cut-off wall Inserts into the relatively impermeable stratum; the waterproof blanket cannot be relied on to effectively control seepage discharge when the permeability coefficient is bigger; The permeability coefficient of overburden foundation controls seepage discharge before cut-off wall inserts into the relatively impermeable stratum.