寒冷地区特长铁路隧道侧沟冻害整治措施研究

Study on measures to control frost damage in the side ditch of super-long railway tunnel in cold area

在寒冷和严寒地区受气候的影响,铁路隧道极易产生水沟冻结,进而引起电缆槽和道床结冰,影响行车安全。文章从张唐铁路赤城隧道水沟冻结产生的原因进行多方面分析,研究提出侧沟冻害整治方案,经过工程实践验证,证明整治方案可行、有效;根据现行铁路隧道设计标准,提出寒冷地区铁路隧道防寒保温系统设计。

Under the impact of climate in cold and extremely cold areas,railway tunnel is prone to have a freezing ditch,which causes the freezing damage to cable trough and track bed,and affects train running safety.This paper analyzes the causes of freezing ditch in Chicheng tunnel of Zhangjiakou-Tangshan railway in many aspects,studies and puts forward the counter-measures to prevent frost damage to side ditch,which is proved to be feasible and effective by engineering practice.According to the current design codes and norms of railway tunnel,it puts forward the cold weather protection and insulation design of railway tunnel in cold area for similar project references.