地基干涉雷达在爆破应急监测中的应用  

Application of GB-SAR in Blasting Emergency Monitoring

作　　者：李进 LI Jin(China Railway Design Corporation,Tianjin 300308,China)

机构地区：[1]中国铁路设计集团有限公司,天津300308

出　　处：《铁道勘察》2024年第5期57-64,共8页Railway Investigation and Surveying

摘　　要：分析地基干涉雷达的技术原理及技术优势,并结合工程实践,从地基干涉雷达测站选址、数据获取方案和数据处理等环节进行研究,制定完整的应急监测方案。以某地工程建设中的施工爆破场景为例,爆破点位于加固边坡的中心位置,使用地基干涉雷达进行应急监测并使用时序数据处理方法获取形变信息,以验证所提出应急监测方案的可行性和数据处理的可靠性。结果表明,爆破对支护好的工程体影响较小,形变量在1.5 mm以内;爆破发生后中心附近位置形变量急剧增加,监测时段内最大可达103 mm。研究结果表明,地基干涉雷达能够有效监测爆破对周边施工场景的影响,可以为施工作业和工程体风险排查提供有力支撑。This paper analyzed the technical principle and advantages of GB-SAR,and combined engineering practices to study the site selection,data acquisition scheme and data processing of GB-SAR station,and made a complete emergency monitoring scheme.Taking the construction blasting scene of an engineering construction as an example,the blasting point was located in the central position where the whole reinforced slope needs to be monitored.The emergency monitoring was carried out by using GB-SAR and the deformation information was obtained by using time-series data processing method,which verified the feasibility of the proposed emergency monitoring scheme and the reliability of data processing.The results show that,the blasting has little influence on the well-supported structure,and the shape variable is less than 1.5 mm.After the explosion,the position shape variable near the center increases sharply,and the maximum value can reach 103 mm during the monitoring period.It is further confirmed that the GB-SAR can effectively monitor the impact of blasting on the surrounding construction scene,and can provide strong support for construction operations and project risk investigation.

关 键 词：铁路 地基干涉雷达 应急监测 时序数据处理 爆破 风险排查 

分 类 号：U212[交通运输工程—道路与铁道工程] P237[天文地球—摄影测量与遥感]