柿子园隧道穿越映秀-北川活动断裂段施工技术

在地下工程建设中,特别对于铁路隧道工程,穿越活动断裂带施工难度极大,其影响和对隧道工程的破坏程度比其它类型工程更为突出。本文以成兰铁路柿子园隧道穿越龙门山中部的映秀-北川活动断裂带工程施工为背景,探讨活动断裂带隧道工程施工技术并对衬砌结构及变形缝设计和施工进行了专项分析和研究,系统地总结出一套具体可实施的综合工艺措施,为同类工程施工建设提供借鉴。

Construction Technology for Shiziyuan Tunnel Crossing Yingxiu-Beichuan Active Fault Section

In the construction of underground engineering,especially for the railway tunnel engineering,it is very difficult to cross the active fault zone,the influence and damage degree to tunnel engineering are more prominent than other types of projects.Taking Yingxiu-Beichuan active fault zone in Shiziyuan Tunnel of Chengdu-Lanzhou Railway crossing the middle of Longmen Mountain as the background,this paper discusses the construction technology of active fault zone tunnel,makes a special analysis and research on the design and construction of lining structure as well as the deformation joint,so as to systematically summarizes a set of comprehensive technology measures that can be specifically implemented,hoping to provide reference for the construction of similar projects.