Mixed earth dam and gravity dam arrangement structure

The utility model discloses a mixed earth dam and gravity dam arrangement structure which comprises homogeneous earth dams and a gravity dam, wherein the homogeneous earth dams are arranged on soil matrixes on both shores; the gravity dam is arranged between the two homogeneous earth dams and on a riverbed rock foundation; the left side and the right side of the gravity dam are connected with the homogeneous earth dams on the corresponding sides through concrete gravity retaining walls; the gravity dam is composed of an overflow dam section, a five-hole flood discharge dam section with a breast wall gate, and a desilting underport dam section from left to right; the gate holes of the flood discharge dam section are separated by middle piers; the left side and the right side of the flood discharge dam section are connected with the overflow dam section and the desilting underport dam section through abutment piers; a stilling basin is arranged on the downstream side of the gravity dam; a water diversion openin