The invention discloses an outlet energy dissipation arrangement structure for centralized arrangement of different
water release structures on the
shore of a hydroelectric project. The included anglebetween the axis of a
flood discharge tunnel and the axis of a
spillway is small, the outlet portions of the
flood discharge tunnel and the
spillway share one stilling
pool for energy dissipation, the stilling
pool is arranged in an asymmetric horn shape on a plane, the bottom of the stilling
pool is composed of a slope transition section and a horizontal section, and the auxiliary energy dissipation facility comprises a diversion
pier, a submerged middle partition wall, a waveform reverse arc small flip bucket and an apron. The diversion
pier is positioned on the slope transition section ofthe stilling pool, and the initial end of the diversion
pier is positioned in the middle of the
flood discharge tunnel outlet and the
spillway outlet and is a widened equal-top-elevation isolation wall, and the submerged middle partition wall is located at the downstream of the diversion pier and is a variable-top-elevation partition wall with equal width and gradually
increased height, and the stilling pool is divided into a left part and a right part by the diversion pier and the submerged middle partition wall. The waveform reverse arc small flip bucket is located at the slope transition section of the stilling pool. According to the outlet energy dissipation arrangement structure, the problems that when a same asymmetric energy dissipation pool is adopted for centralized energy dissipation at different flood
discharge building outlets, rotation and energy dissipation of high-speed asymmetric
water flow are not sufficient are solved, and
engineering investment is saved.