摘要
我国西南山区地形地质条件极其复杂,具有地质灾害范围大、规模广、频率高、突发性强等特点,而山区铁路建设不可避免地需经过这些区域,因此,山区铁路防灾监测一直备受关注。2019年8月14日,受连日强降雨影响,成昆铁路K310+668~K311+232区段发生高位山体崩塌灾害,导致铁路断道3个多月。为保障抢险施工期人员安全及临通期列车运营安全,采用“空-天-地”多传感协同的应急监测手段对该病害段开展立体化监测,结合灾害地质特征、致灾机理建立考虑降雨强度的双控位移预警指标,并辅以智能视频识别监测技术对异物侵限进行实时监测。应急监测周期历时近8个月,系统未出现误报、漏报。应用结果表明:“空-天-地”多传感协同的监测技术相较传统监测手段,通过采用“点面结合,立体化防护”的方式针对灾害点开展全方位实时监测,其预警可靠性及稳定性得到良好验证。
The terrain and geological conditions in the mountainous areas in southwest China are extremely complex with the characteristics of large range,wide scale,high frequency and sudden occurrence of geological disasters.The railway construction in mountainous areas inevitably needs to pass through these areas,so the disaster prevention monitoring of mountain railways has been paid much attention.On August 14,2019,affected by successive days of heavy rainfall,the Chengdu-Kunming railway section K310+668~K311+232 experienced a high mountain collapse disaster and the railway was cut off for more than three months.In order to ensure the safety of the emergency workers and the operation safety of the trains in the transit period,an Air-Sky-Ground emergency monitoring method was adopted to realize three-dimensional monitoring of diseases.Based on the geological characteristics and the mechanism of disasters,dual-control displacement early-warning indexes considering rainfall intensity were established,and intelligent video recognition and monitoring technology was used to monitor foreign body invasions.The emergency monitoring period lasted nearly 8 months,and no false alarm nor missing alarm occurred in the system.The application results show that,compared with traditional monitoring means,the Air-Sky-Ground multi-sensor synergy monitoring technology fulfills real-time monitoring against disasters by means of incorporating points into planes and tridimensional protection and its warning reliability and stability is well validated.
作者
刘勇
王珣
高柏松
伏坤
袁焦
余博
LIU Yong;WANG Xun;GAO Baisong;FU Kun;YUAN Jiao;YU Bo(China Railway Eryuan Engineering Group Co.,Ltd.,Chengdu 610031,China)
出处
《铁道标准设计》
北大核心
2022年第1期26-32,共7页
Railway Standard Design
基金
中国中铁股份有限公司重大科研项目(CZ01-重大-02,2020-重大-14)
成都市科技支撑计划项目(2019-YF08-00160-GX)。
关键词
铁路
地质灾害
空-天-地
监测系统
应急抢险
多传感协同
railway
geological disasters
AirSky-Ground
monitoring system
emergency rescue
multi-sensor synergy
