四圆带座预制拱涵在排洪暗涵施工中的应用

Application of precast arch culvert with base and four filleted corners in flood culvert construction

排洪暗涵一般采用钢筋混凝土箱涵型式,但在沿海城市的入海处受到潮汐的影响,钢筋混凝土箱涵施工存在施工周期长等不利因素。以厦门市环东海域东海科技园排洪渠延伸段施工为例,介绍四圆带座预制拱涵在排洪暗涵中的应用,它具有质量稳定、施工安装方便、试压简单、施工速度快的特点。

Reinforced concrete box culvert is usually designed for flood discharge, but it requires long construction period at the ocean outfall of coastal cities due to influence of tide. Taking the construction of the flood canal extend- ing section in the East China Sea Science and Technology Park of Xiamen City as example, the author presented the application of precast arch culvert with base and four filleted corners in flood culvert construction, which permits stable quality, convenient erection, simple pressure test and rapid construction.