摘要
基于城市水下隧道环境条件的特殊性,以长沙市营盘路湘江隧道为依托,提出水下隧道最小埋深的设计标准流程:首先,在对日本经验法、挪威经验法和顶水采煤法等工程经验法分析的基础上,提出隧道最小埋深的初始值;然后,通过线路纵断面的拟定,并结合典型隧道工程类比,不断调整该初始值;最后,结合数值分析法的验算结果,确定隧道最小埋深的合理设计值,最终形成城市水下隧道最小埋深的设计方法。
Based on particularity of environmental conditions of submerged tunnels in cities, this paper proposes a standard design procedure for the minimum burial depth of submerged tunnels on the basis of Xiangjiang Tunnel at Yingpan Road of Changsha: first, propose initial value of the minimum burial depth of tunnels based on analysis of the Japanese empirical approach, Norwegian empirical approach and coal extraction on topside of water, etc. ; second, adjust initial value continuously by drawing up longitudinal section of line and comparing with typical tunnel projects; and finally, determine reasonable design value of the minimum burial depth in combination with checking results of numerical analysis method. Eventually a design method for the minimum burial depth of submerged tunnels in cities is established.
出处
《公路交通技术》
2011年第1期94-98,共5页
Technology of Highway and Transport
关键词
城市水下隧道
最小埋深
设计方法
营盘路湘江隧道
submerged tunnels in cities
minimum burial depth
design method
Xiangjiang Tunnel at Yingpan Road