摘要
在桥涵下面采用浅埋暗挖法进行城市地铁隧道的施工,施工难度和风险都很高。近年来随着城市地铁在我国的大量修建,这些工程将会越来越多,甚至不可避免,如何保证在施工过程中施工和桥涵的安全,已成为近年来大家普遍关注的一个现实问题。鉴于此目的,对南京地铁2号线孝灵卫站-钟灵街站区间隧道下穿陵卫西沟涵及西北水库沟这一实际工程,以经验公式及有限元计算软件等方法,确定合理的支护结构,结果施工期间,涵基础、水库沟和地下结构均未出现安全隐患,据此工程实例,也取得了一些有意义的结论和建议,为以后类似的工程实施提供了一定的依据和参考作用。
The difficulty and risk of construction are high if the shallow metro tunnel under trench is constructed with the mining method. So how to ensure the safety of tunnel and trench during the construction becomes a matter of great concern. The tunnel under-crossing the trench between Xiaolingwei station and Zhonglingjie station on metro line 2 in Nanjing is presented in this paper. The empirical formula and the finite element method are used to determine the suitable support. And the support plays an important role in the construction of tunnel. These practical experiences can provide references to the future similar constructions.
出处
《隧道建设》
2007年第S2期314-316,共3页
Tunnel Construction
关键词
地铁
浅埋下穿沟涵隧道
支护结构分析
metro
shallow tunnel under-crossing trench
support structure
