大直径水下盾构隧道合理埋置深度分析

Analysis of Reasonable Buried Depth of Large Diameter Underwater Shield Tunnel

文章论述了软弱地层及复合地层大直径水下盾构隧道合理埋置深度的拟定方法,分析了河床冲刷深槽、船舶下锚及隧道抗浮稳定等因素对水下盾构隧道合理埋置深度及纵断面线形的影响,并以武汉三阳路长江隧道为实例,阐述了水下盾构隧道合理埋置深度拟定的方法。

This article discusses the method for judging the reasonable buried depth of large-diameter underwater shield tunnels in weak stratum and composite stratum,analyzes the influence of factors such as riverbed scouring deep trough,ship anchor and tunnel anti-floating stability on the reasonable buried depth and profile line shape of underwater shield tunnel,then,with Yangtze River Tunnel of Sanyang Road in Wuhan as the example,it describes the method for judging the reasonable buried depth of underwater shield tunnel.