一、前言在引水渡槽兴建工程中,渡槽跨河道时,上部渡槽构件往往采用予制(装配式)构件,现场安装。对于潮汐河道,如受水深、河道闸桥限制,无法拖入水上起吊机械时,能否利用河道潮汐水位的势能,进行水 I. INTRODUCTION In the construction of diversion aqueducts and aqueducts across rivers, the upper aqueduct components are often prefabricated (fabricated) and installed on site. For tidal channels, such as the depth of water, the river gate bridge restrictions, can not be dragged into the water lifting machinery, can use the potential energy of the tidal water level, the water