驮英水库消能防冲护岸设计

Design of energy dissipation and erosion-control bank revetment for Tuoying Reservoir

驮英水库采用溢洪道+泄洪洞联合泄洪的泄洪方式,泄洪时水流条件极其复杂,溢洪道及泄洪洞泄洪时产生的冲坑很深,对护岸边坡的稳定造成了严重的威胁,又因溢洪道及泄洪洞布置位置距离大坝及坝后发电厂房均接近,联合泄洪产生的影响对整个水库建筑物的安全均产生了影响,故本工程对冲刷严重护岸段进行桩基防护,以确保水库枢纽安全。

The flood-relief structures of Tuoying Reservoir consist of flood spillway and spillway tunnel.The water flow conditions during flood discharge are extremely complicated.Flood discharge may render very deep scour holes in the flood spillway and tunnel,which will seriously threaten the stability of bank revetment.Furthermore,the flood spillway and tunnel are close to the main dam and downstream powerhouse,and the joint flood discharge affect the safety of whole reservoir structures,so pile foundation protection is designed for the bank revetment sections subject to serious scouring to ensure the safety of reservoir project.