宝鸡市2024年“7·16”暴雨诱发地质灾害调查及监测分析——以濛峪沟、夏砑壑区域为例  

Investigation and monitoring analysis of geological disaster sites induced by the rainstorm on July 16,2024 in Baoji City:A case study of Mengyugou and Xiayahe regions

作　　者：任冲 赵班 张俊辉[1,2] 张欢 REN Chong;ZHAO Ban;ZHANG Jun-hui;ZHANG Huan(College of Geography and Environment,Baoji University of Arts and Sciences,Baoji 721013,Shaanxi,China;Shaanxi Key Laboratory of Disaster Monitoring and Mechanism Simulation,Baoji 721013,Shaanxi,China)

机构地区：[1]宝鸡文理学院地理与环境学院,陕西宝鸡721013 [2]陕西省灾害监测与机理模拟重点实验室,陕西宝鸡721013

出　　处：《宝鸡文理学院学报(自然科学版)》2025年第1期79-91,共13页Journal of Baoji University of Arts and Sciences(Natural Science Edition)

基　　金：陕西省教育厅专项科学研究计划项目(自然科学项目)(22JK0249,23JK0286)。

摘　　要：目的以濛峪沟、夏砑壑区域为例,基于陕西省灾害监测与机理模拟重点实验室秦岭卧龙山滑坡野外监测站实测数据、宝鸡7·16暴雨灾后地面现场调查数据和高分辨率无人机遥感影像,对本次暴雨诱发夏砑壑滑坡及区域地质灾害进行了分析。方法采用统计与时序分析、区域空间分析、无人机遥感解译等方法对濛峪沟、夏砑壑区域暴雨诱发地质灾害调查及监测数据进行定性及定量分析。结果依据灾后实地调查,宝鸡7·16暴雨灾害诱发濛峪沟、夏砑壑区域100余处地质灾害点,以浅层、小型滑坡为主。本次暴雨直接诱发夏砑壑滑坡于7月17日11时出现下滑现象,滑坡体中部和底部监测位移变化显著,监测站下沉倾斜严重,底部高陡边坡垮塌,裂缝增大异常明显。7·16暴雨灾害发生后,监测站水平位移、垂直位移与合位移均急剧增加,其变化量分别超过80、320和300 mm。强降雨对滑坡体中部和底部的影响较灵敏地体现在倾角测量值及其变化上。监测点形变速度增大或减小与强降雨、持续降雨显著相关。结论基于野外监测站实测数据、地面调查数据和无人机遥感影像开展濛峪沟、夏砑壑区域暴雨诱发地质灾害调查及监测,可为当地灾害管理部门灾害监测预警、风险评估、应急管理等提供一定的有益参考。Purposes—To analyze Xiayahe landslide and regional geological disasters that were induced by the rainstorm disaster on July 16,2024 in Baoji City by taking Mengyugou and Xiayahe regions as examples on the basis of the measured data of Wolong Mountain Landslide Field Monitoring Station in Qinling Mountains established by the Key Laboratory of Disaster Monitoring and Mechanism Simulation in Shaanxi Province,ground field survey data after this rainstorm disaster and high spatial resolution unmanned aerial vehicle remote sensing images.Methods—Statistical analysis and time series analysis,regional spatial analysis,UAV remote sensing image interpretation methods are used to conduct a qualitative and quantitative analysis of the geological disaster investigation and monitoring data in Mengyugou and Xiayahe regions.Results—According to the field survey after the disaster,the rainstorm disaster on July 16 in Mengyugou and Xiayahe regions of Baoji City caused more than 100 geological disaster sites,mainly consisting of shallow and small landslides.This rainstorm directly induced Xiayahe landslide to slide at 11:00 on July 17.During the monitoring period,significant displacement changes were observed in the middle and bottom of the landslide body.The subsidence and tilting phenomena of landslide disaster monitoring stations are very serious.The high and steep slope at the bottom of the landslide body has severely collapsed.The increase in slope cracks and ground fissures is very significant.After the rainstorm disaster on July 16,the horizontal displacement,vertical displacement and total combined displacement of the monitoring station increased sharply,with the changing by more than 80,320 and 300 mm respectively.The impact of heavy rainfall on the middle and bottom of the landslide body is sensitively reflected in the measured values and changes of inclination angle.The increase or decrease in deformation speed of monitoring points is significantly correlated with heavy rainfall and continuous rainfall.Conclusions�

关 键 词：地质灾害调查 降雨型滑坡 滑坡监测 变形监测 宝鸡7·16暴雨灾害 

分 类 号：P237[天文地球—摄影测量与遥感]