A dam body prevention of seepage drainage system for roller compacted concrete dam

The utility model provides a dam body prevention of seepage drainage system for roller compacted concrete dam, prevention of seepage drainage system include at transverse joint drainage system and horizontal drainage system that transverse joint drainage system includes stagnant water and the transverse joint drainage blind pipe of arranging in the same direction as water flow direction near the upper reaches or low reaches transverse joint, and horizontal drainage system is including setting up the horizontal drainage blind pipe at dam body prevention of seepage district rear, the both ends and the transverse joint drainage blind pipe overlap joint intercommunication of horizontal drainage blind pipe, prevention of seepage drainage system still includes vertical drainage system, and vertical drainage system includes many vertical drainage pipes that set in a row, the bottom and the dam body corridor intercommunication of vertical drainage pipe in the concrete in the dam. The utility model discloses increase horizontal drainage system behind roller compacted concrete aspect side prevention of seepage district, with vertical drainage system constitute the dam body and cut and ooze the drainage pipeline networks, the construction is simple and convenient, plays effectual step -down, cuts the effect of oozing the infiltration of the weak aspect of roller compacted concrete, has compensatied the not enough of dam body vertical drainage hole, has improved the whole prevention of seepage drainage ability of dam dam body.