地下风机房结构受力分析与研究  

Analysis and Study on Structure Stress of Underground Fan Room

作　　者：钱文斐[1] 

机构地区：[1]上海市政工程设计研究总院(集团)有限公司,上海市200092

出　　处：《城市道桥与防洪》2017年第3期234-236,240,共4页Urban Roads Bridges & Flood Control

摘　　要：纵向式通风井送排式通风是当前和未来特长隧道的主流通风模式。通过对地下风机房隧道群结构体系的核心组成部分——地下风机房受力及变形的分析,得出了如下结论:在Ⅲ级围岩的条件下,端头墙交界处受力不利,应加强结构设计;端头墙对拱部、边墙部5m范围内有一定的约束支撑作用;地下风机房的总体位移值较小。以上结论为地下风机房的结构设计提供了一定程度的参考价值。The exhaust ventilation of longitudinal ventilation shaft is the mainstream ventilation mode of the current and future super-long tunnel. According to the analysis on the stress and deformation of underground fan room-core constituent part of tunnel group structure system in underground fan room, the conclusion shows that the structure design should be strengthened under the condition of Ⅲ-level surrounding rock and unfavorable stress at junction of end wall. There is a certain constraint support function within 5-m range of end wall to arch and side wall. The overall displacement value of underground fan room is smaller. The above conclusion can provide a certain referring value for the structure design of underground fan room.

关 键 词：特长隧道 纵向式通风井送排式通风 地下风机房 端头墙 

分 类 号：U453.5[建筑科学—桥梁与隧道工程]