Prevention of seepage on rock-fill dam upstream face top layer structure

(B, ) the utility model discloses a prevention of seepage on rock-fill dam upstream face top layer structure is including the dam body of enrockment material (4) formation, being equipped with displacement hull (5) in dam body bottom, being equipped with blotter (3) at the upstream face of dam body, be equipped with the flexible prevention of seepage body (1) on blotter (3) surface, the flexible prevention of seepage body (1) bottom is connected through copper stagnant water piece (10) is closed at the concrete-based of dam foot seat (2) with establishing, be equipped with bottom concrete-based seat (2) impervious curtain (6). The utility model discloses has played the effect of multilayer prevention of seepage, because the prevention of seepage body in top layer for flexible construction, can adapt to the deformation of dam body enrockment material well, has simplified the operational procedure of the prevention of seepage body simultaneously again, had simple structure, the characteristics of the economy and the construction of being convenient for (B, ) (b /)