作　　者： (李维华）; (怀平生）;

机构地区： 中铁十二局集团有限公司,山西太原030024

出　　处： 《铁道建筑技术》 2017年第8期63-66,72,共5页

摘　　要： 软弱围岩隧道设计及施工技术在国内外屡见不鲜,但隧道的设计理念及施工方法的差异却很大。本文以以色列卡迈尔公路隧道为例,从隧道设计理念、支护参数设计、施工步骤、关键部位工艺控制等方面介绍了没有二衬支护情况下的软岩大断面隧道的设计及施工技术,提出了软弱围岩大断面隧道喷锚衬砌新技术,并在实践中取得了良好的效果。 There are quite a lot of designs and construction technologies for tunnels in poor geology conditions for both in China and in the world,but the design concepts and construction methods are quite different. Taking the Israeli Carmel Highway Tunnels as an example,this dissertation introduces the design and construction technologies for large cross section tunnels in poor geology conditions by focusing on tunnel design concept,design of support elements,work sequences and control of construction method for key elements. And this dissertation also puts forward new shotcreting technologies for large cross section tunnels without secondary lining in poor geology conditions and has achieved good result in practice.

关 键 词： 软弱围岩 无二衬支护 大断面隧道 喷锚衬砌 施工技术