摘要
介绍博罗大桥＃２桥墩沉井基础施工中采用集装砂袋铅丝笼围堰筑岛方案，工艺简单、设备简易、工期短，比钢板桩围堰筑岛方案节省资金约６０％。沉井下沉中采取砂泵抽砂和吸泥机吸泥下沉的水下不排水开挖施工，并为穿透硬粘土层设计了简易有效的锯齿形吸泥口。
In the open caisson foundation construction of #2 pier of Boluo Bridge, the scheme for island building of adopting sand bags & galvanized iron wire-caged cofferdam has the advantages of easy technology, simple equipments, and short construction period, and can save cost of 60% comparing the scheme of adopting steel plate piled cofferdam. Sand pump and silt suction machine are adopted and simple & effective sawtooth-shaped suction mouth is designed for passing through the hard clayey silt course during sinking of the open caisson.
出处
《水运工程》
北大核心
1997年第9期53-55,共3页
Port & Waterway Engineering
