Construction conditions and structural design of Hongshui River aqueduct in Letan Reservoir Irrigation Zone
Hongshui River aqueduct is the key node of the South trunk canal of Letan Reservoir Irrigation Zone in central Guangxi.The design of the aqueduct is limited by the hydraulic characteristics of artesian water transport in the main canal.The designed water level of the canal head is low.The navigable height below the aqueduct is re-quired to be not less than 8m.For the complicated construction conditions,arch frame scheme was compared with continuous rigid frame scheme,based on which the continuous rigid frame scheme was determined due to less con-struction cost and higher implementation safety and reliability.The adopted continuous rigid frame has double width,large span,low pier,flat stacked box and variable cross-section.The load-bearing structure is effectively in-tegrated with the water flow tough body.It is the first case of water conservancy engineering in Guangxi,and is the first cross-river aqueduct of large-span continuous rigid frame with low piers in China.
Hongshui River aqueductcontinuous rigid frame aqueductsafety and reliabilityLetan Reservoir Irriga-tion Zonedrought relief in central Guangxi
万方数据
维普
