复杂条件下扩建船闸口门区布置及改善措施

对于已建船闸的水利枢纽,扩建复线船闸可大大提高枢纽的船闸通过能力。由于受到地形、河势、已建枢纽建筑物的影响和制约,扩建船闸工程的外部边界条件往往十分复杂,尤其是口门区通航水流条件。以大源渡航电枢纽二线船闸工程为例,对复杂条件下扩建船闸口门区布置及改善措施进行研究,并提出工程措施与管制措施相结合的方案。该船闸的口门区解决方案,在满足船闸运行要求的前提下,节约工程投资。研究成果可为类似工程提供借鉴。

Layout and improving measures of entrance area for expanded ship lock under complex condition

For hydro-junction with constructed ship lock,constructing second lock can greatly improve the lock capacity.Being affected and restricted by topography,river regime and the constructed hydraulic structures,the outer boundary condition of the expanded ship lock,especially the navigable flow condition of the entrance area,is usually complex.Taking the second ship lock project of Dayuandu navigation-power junction as an example,we study the layout and improving measures of the entrance area of the expanded ship lock under complex condition,and propose a scheme combining the engineering measures and the control measures. The scheme can solve the entrance area problem and save a lot project investment while meeting the demands of ship lock operation.The research result can provide reference for similar projects.