摘要
穿山隧道在西南地区交通基础设施中有着重要应用,而复杂的地形地质条件,频繁发生的地质灾害给隧道工程的施工建设和运营维护造成了巨大的安全隐患。对此,采用SBAS-InSAR时序分析法提取了大亮山隧道从2018年6月到2023年4月的时序形变场,分析表明大亮山隧道工程沿线区域存在较大范围地表沉降且越靠近隧道主体的区域沉降幅度越大,同时部分区域地表沉降速率发生突变后显著加快,在未来可能进一步发展为地质灾害隐患点。
The mountain tunnel plays a crucial role in the transportation infrastructure of the southwestern region.However,the complex terrain and geological conditions,coupled with frequent geological disasters,pose significant safety threat to the construction,operation,and maintenance of mountain tunnels.In response to these challenges,the SBAS-InSAR time-series analysis method was employed to extract the temporal deformation field of the Daliangshan Tunnel from June 2018 to April 2023.The analysis reveals that there is a considerable extent of surface subsidence along the alignment of the Daliangshan Tunnel.Moreover,areas closer to the tunnel body experience greater subsidence,indicating a correlation between subsidence magnitude and proximity to the tunnel.Additionally,certain regions exhibit a sudden acceleration in the rate of surface subsidence,suggesting the potential development of these areas into geological hazard points in the future.
作者
林超赢
Lin Chaoying(College of Surveying and Geo-Informatics,Tongji University,Shanghai 200092,China)
出处
《山西建筑》
2024年第8期152-156,共5页
Shanxi Architecture
基金
高峰学科建设项目:基于精密空间对地观测技术的山地城市多灾害防控与韧性提升方法研究(项目编号:2022-3-YB-16)。
