KẾT QUẢ THÍ NGHIỆM MÔ HÌNH THỦY LỰC TRÀN XẢ LŨ BẢN LẢI

Abstract

The Ban Lai spillway is structure that has complex operation include the spillway with breast wall in the middle of the river and two ogee crests-controlled spillways in side by side. The highest water column on the ogee spillway is over 10m and on the breast wall spillway is nearly 20m. With the design flood, the project should ensure discharge flow downstream does not cause flooding Lang Son city. Thus, the overall layout of the works, the problems as the boundary flow, the overflow, under the breast wall, the energy dissipator are very complex. This article presents a summary of the results of the overall hydraulic modeling test, making recommendations for modifying to ensure that the operation is safe and effective when the structure operates.