高寒铁路隧道排水系统冻害主动热防护新技术研究  

Study on the new technology of active thermal protection against freezing damage in the drainage system of the high and cold railway tunnel

作　　者：郭宏新[1] 孙田 周天宝 张明国 Guo Hongxin;Sun Tian;Zhou Tianbao;Zhang Mingguo(Jiangsu Zhongsheng High-tech Industry Co.Ltd.,Nanjing 210000,China;China Railway Qinghai Tibet Group Co.Ltd.,Xining 810016,China)

机构地区：[1]江苏中圣高科技产业有限公司,南京210000 [2]中国铁路青藏集团有限公司,西宁810016

出　　处：《青海交通科技》2023年第4期153-158,共6页Qinghai Transportation Science and Technology

基　　金：冻土工程国家重点实验室开放基金(SKLFSE202009);江苏省资助招收博士后人员资助计划项目(2019Z016);国家自然科学基金项目(52108324)。

摘　　要：聚焦高寒铁路隧道因排水系统不畅导致冻害的问题,分析了国内外寒区隧道保温排水技术现状,通过研究青藏高原某典型特长铁路隧道冻害特点,提出了纳米热棒热防护新技术,对排水系统实施主动加热,并在现场开展试验研究,结果表明:纳米热棒热防护措施能有效防治隧道排水沟结冰,与已有的主动加热措施相比,经济性优势明显,具有极高的推广价值和良好的市场前景。Targeted to the issue of the freezing damage caused by the poor drainage system in high and cold railway tunnel,the authors propose the new method of active thermal protection based on the current technical status of thermal insulation and drainage in tunnels and the characteristics of freezing damage of a typical extra-long railway tunnel in the Qinghai-Tibet Plateau.The experimental research is carried out through the nano-thermoprobe which is proposed to heat the drainage system actively.The results show that the nano-thermoprobe can effectively prevent the water from freezing in the drainage ditch.Compared with existing active heating measures,the nano-thermoprobe has obvious economic advantages,high promotion value and good market prospect.

关 键 词：高寒隧道 冻害 纳米热棒 热防护 

分 类 号：U457.2[建筑科学—桥梁与隧道工程]