高原冻土隧道冻融圈监测系统  

Monitoring System for the Freeze-Thaw Circle Around Tunnels in a Plateau Featuring Frozen Ground

作　　者：宋冶[1] 廖凯[1] 刘玉勇[1] 

机构地区：[1]中铁西南科学研究院有限公司,成都611731

出　　处：《现代隧道技术》2013年第6期14-18,79,共6页Modern Tunnelling Technology

基　　金：铁道部科技开发计划项目(2001G001-E-01)

摘　　要：为加强高原冻土隧道长期运营环境下隧道周边冻融圈的监控,以更好地适应和满足青藏铁路及西部高海拔隧道无人值守实时监测的需求,在前期SJX-24T/16T隧道自动测试系统的基础上,进行了网络数据传输及远程控制功能升级,提出了一种高原冻土隧道冻融圈远程实时监测系统,从而可通过485-GPRS转换进行异地远程数据自动实时采集和传输。该系统于2002年开始应用于青藏铁路昆仑山和风火山隧道的冻融圈监测,成功地取得了大量宝贵的高原多年冻土隧道的冻融监测数据。通过青藏铁路昆仑山隧道现场应用证明,该系统稳定可靠,效果达到了设计要求。To strengthen the monitoring of a freeze-thaw circle around operating tunnels in a plateau with frozen ground and to better meet the requirements of unattended real-time monitoring for the Qinghai-Tibet railway and high-ahitude tunnels in western China, the function of network data transmission and remote control is upgraded and a remote real-time monitoring system for the freeze-thaw circle is proposed on the basis of the original SJX- 24T/16T tunnel automatic test system. Thus, automated real-time acquisition and transmission of monitoring data can be realized via the 485-GPRS transition and remote control function. Since 2002, this system has been applied to monitoring of the freeze-thaw circle around the Kunlunshan and Fenghuoshan tunnels on the Qinghai- Tibet railway, and it has successfully obtained large amounts of valuable monitoring data of freezing and thawing around tunnels in the plateau＇s frozen ground. The results show that this monitoring system is stable and reliable, with the effects meeting design requirements.

关 键 词：青藏铁路 高原冻土隧道 冻融圈 监测系统 远程实时监测 485-GPRS转换器 

分 类 号：U456.33[建筑科学—桥梁与隧道工程]