联合时序InSAR和现场测量的地铁枢纽施工形变监测与多参量风险评估  

Deformation monitoring and multi-parameter risk assessment of subway hub construction using joint mt-insar and field measurements

作　　者：秦晓琼 张雅轩 徐彬涛 刘宇舟 刘镇诚 洪成雨 陈湘生[1,3] 汪驰升 QIN Xiaoqiong;ZHANG Yaxuan;XU Bintao;LIU Yuzhou;LIU Zhencheng;HONG Chengyu;CHEN Xiangsheng;WANG Chisheng(State Key Laboratory of Intelligent Geotechnics and Tunnelling,Shenzhen University,Shenzhen 518060,China;Shenzhen Technology Institute of Urban Public Safety and Key Laboratory of Urban Safety Risk Monitoring and Early Warning,Ministry of Emergency Management,Shenzhen 518002,China;Key Laboratory of Coastal Urban Resilient Infrastructures,Shenzhen University,Shenzhen 518060,China)

机构地区：[1]深圳大学极端环境岩土和隧道工程智能建养全国重点实验室,广东深圳518060 [2]深圳市城市公共安全技术研究院有限公司城市安全风险监测预警应急管理部重点实验室,广东深圳518002 [3]滨海城市韧性基础设施教育部重点实验室,广东深圳518060

出　　处：《测绘通报》2025年第2期71-76,共6页Bulletin of Surveying and Mapping

基　　金：国家重点研发计划(2023YFC3807500);广东省重点领域研发计划(2022B0101070001);国家自然科学基金(42104012,42474021);深圳市自然科学基金面上项目(JCYJ20220531101812028);深圳市城市公共安全技术研究院有限公司城市安全风险监测预警应急管理部重点实验室开放基金(YJY-23-YF-ZY012)。

摘　　要：地铁里程的快速增长伴随着频发的施工事故,形变监测与解译对确保施工安全至关重要。本文针对地铁施工特性优化SAR影像集进行划分,改善施工区失相干现象,并联合现场测量补充其时空和视角缺失,解译了深圳地铁12号线沙浦站的施工形变过程,并基于形变结果进行多参量风险评估。结果显示:(1)沙浦站施工区的点目标数量和相干性显著提高;(2)联合分析InSAR、地下水位、水准测量数据,发现基坑开挖、隧道盾构导致周边构筑物发生10~30 mm不均匀沉降,并产生了3个沉降漏斗;(3)联合InSAR和机器视觉沉降监测结果,发现回填施工后主体结构形变主要原因为回填土荷载作用,回填土层平均压缩量约4.31 mm;(4)沿隧道和基坑两侧、车站37~42环块形变风险较高。Rapid metro expansion is accompanied by frequent construction accidents,making deformation monitoring and interpretation crucial for ensuring construction safety.This paper optimized MT-InSAR for improving the coherence of construction areas according to the subway construction characteristics.Moreover,the InSAR and on-site measurements are combined to supplement the spatiotemporal and angular gaps of subsidence.The deformation process of the construction area of Shapu Station on Shenzhen Metro Line 12 is interpreted,and the deformation results are finally used for multi-parameter settlement risk assessment.The results show that:①The number of points and coherence in the Shapu construction area are significantly improved;②Combined analysis of groundwater level and leveling measurements reveals that excavation of foundation pits and tunnel lead to uneven settlement of surrounding structures by 10~30 mm,with three settlement funnels identified;③Combined analysis with machine vision monitoring indicates that the main structural deformation after backfilling is due to the load of backfill soil,with an average compression of approximately 4.31 mm in the backfill layer;④The deformation risk is higher along the sides of the tunnel and foundation pit,as well as in the 37~42 ring segments of the station.

关 键 词：形变监测 时序InSAR 地铁施工 风险评估 

分 类 号：P237[天文地球—摄影测量与遥感] P258[天文地球—测绘科学与技术]