The present invention utilizes potential energy of water to eliminate sand and floated matter, and can increase power generating capacity of reservoir and eliminate siltation of reservoir radially.

• 清沙、清漂是利用坝的势能，不消耗有价能源，充分利用冲沙、冲漂及库容外水资源增大发电量。根治水库淤积之沉疴顽症，使水库永葆青春，长久造福人类。