Study on Water Gushing Treatment of Bottom Sealing Concrete of Double-wall Steel Cofferdam in Deep-water River
Double-wall steel cofferdam is common in the construction of bridges in water.The bottom sealing construction technology is complex,and the construction safety risk is large.Whether the bottom sealing is successful or not is related to the whole construction progress.Based on the construction of double-wall steel cofferdam of Beijiang Bridge in Guangqing North Extension Intercity Railway Project,this paper studies the water gushing problem of double-wall steel cofferdam bottom sealing concrete in deep water river,aiming at the problem of cofferdam bottom sealing failure caused by cofferdam bottom sealing concrete and inner wall mud of pile foundation steel casing,and takes measures for different water gushing conditions for reference.
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