地铁隧道联络通道初支变形风险控制技术研究  

Research on First Support Deformation Risk Control Techniques for Connected Aisle of Subway Tunnel

作　　者：李志华 李文 陈磊[3] 刘宝林[3] 

机构地区：[1]上海天佑工程咨询有限公司,上海200000 [2]武汉市车都轨道交通有限公司,武汉430056 [3]华中科技大学土木工程与力学学院,武汉430074

出　　处：《土木建筑工程信息技术》2015年第2期108-112,共5页Journal of Information Technology in Civil Engineering and Architecture

摘　　要：在地铁隧道建设中,常在上下行隧道中间段设置联络通道。联络通道的设置增加了隧道的安全系数,因此也称为"逃生通道"。联络通道通常在主体隧道完成后施工,一定程度上会对主体隧道和周围的环境产生影响。施工中常将废水泵房与联络通道的合并进行,而泵房的设计相对保守,施工工艺受空间所限,也更容易造成风险。因此,采取有效措施确保开挖安全显得至关重要。本文以武汉地铁某区间隧道联络通道初支变形风险处理为例,使用回填反压、初支加固、底板加快施工的方法,为类似工程积累风险控制技术。In the construction of subway tunnel, a connected aisle is often set in the middle section of the upper and lower parts of the tunnel. The connected aisle is set to increase the safety factor of the tunnel, known as the ＂ escape route＂. Connected aisle construction is after the completion of the main tunnel and it would have impact on the main tunnel and the surrounding environment to a certain extent. Wastewater pumping house is often combined with connected aisle in construction, but the pumping house design is relatively conservative. Construction technology is constrained by space, so it is more likely to cause risks. Therefore, effective measures are crucial to ensure the safety of excavation. In this paper, the first support deformation risk of a connected aisle of Wuhan Metro tunnel is used as an example, which uses backfill backpressure the floor construction, providing reference of risk control , first support reinforcement methods and acceleration of techniques for similar projects.

关 键 词：联络通道 废水泵房 初支变形 风险控制 

分 类 号：U455.43[建筑科学—桥梁与隧道工程]