茅村交通涵洞施工导流渡槽设计及施工

Design and Construction of Diversion Aqueduct for Construction of Maocun Traffic Culvert

以湛江青年运河下穿茅村交通涵洞重建工程施工导流渡槽为例,采用了贝雷架与大块钢模组合渡槽作为青年运河中断输水期间的临时导流技术措施。组合渡槽由混凝土基础、贝雷架组合支撑体系,和大块钢模组拼而成的矩形过水渡槽。对导流方案的选择、方案设计时的过水量、承载力和主梁强度验算、施工工艺以及实施效果等进行了综合介绍。

Taking the diversion aqueduct constructed under the Zhanjiang Youth Canal through Maocun traffic culvert reconstruction project as an example,the combined aqueduct of Beret frame and large steel modules was adopted as the temporary diversion technical measure during the interruption of water conveyance of the Youth Canal.The composite aqueduct is a rectangular aqueduct composed of concrete foundation,Beret frame composite support system and large steel modules.The selection of diversion scheme,excess water volume,bearing capacity and checking calculation of main beam strength,construction technology and implementation effect are introduced comprehensively.