华南地质2025，Vol.41Issue(3)：580-589,10.DOI:10.3969/j.issn.2097-0013.2025.03.009
深圳2018-2022年城市地面坍塌特征分析
Analysis of Urban Ground Collapse Characteristics in Shenzhen from 2018 to 2022
摘要
Abstract
With the rapid advancement of urbanisation in our country,human engineering activities have an increasing impact on urban underground spaces,and ground collapses in cities are occurring more frequently,posing a significant hazard to urban safety and development.Based on the ground collapse accidents in Shenzhen from 2018 to 2022,this research explores their spatiotemporal distribution,triggering factors,and hazard characteristics by applying methods such as field investigations,statistical analysis,and GIS spatial analysis.Results show that ground collapse disasters in Shenzhen exhibit concealment,abruptness,clustering,and recurrence.The annual number of incidents initially increases before decreasing,with the peak occurrence in 2019.The monthly occurrence of ground collapse is highly correlated with precipitation(r=0.697).The number of accidents is significantly higher in the rainy season than in the dry season.Prolonged heavy rainfall or short-duration torrential downpours are key triggers for ground collapse accidents.Spatially,the ground collapse incidents are unevenly distributed,demonstrating higher concentration in central-western regions.The ground collapse incidents in older urban districts(i.e.Futian and Luohu)with early-stage development and highly concentrated infrastructure are primarily attributed to aging and leaky pipelines,and adverse geological conditions such as soft soil layers.Conversely,incidents in rapidly developing districts(i.e.Longgang and Guangming)are linked to intensive engineering disturbances and unfavorable hydro-geotechnical conditions.Notably,78.07%of incidents occur in high-activity zones like municipal roads and sidewalks,posing risks to traffic and pedestrians.In terms of scale characteristics,most collapses are small-scale with a depth of less than 3 m,an area within 10 m2,and a volume below 10 m3,accounting for 75%of the total cases,but the potential damage of which cannot be underestimated due to their occurrences in densely populated areas.关键词
地面坍塌/时空分布特征/降雨诱发机制/人类工程活动/深圳Key words
ground collapse/spatial and temporal distribution characteristics/rainfall-triggered mechanism/anthropogenic engineering activities/Shenzhen分类
地质学引用本文复制引用
王海燕,李晴岚,曹炼鹏,朱江皇,张文桐,冯裕华,施秋华..深圳2018-2022年城市地面坍塌特征分析[J].华南地质,2025,41(3):580-589,10.基金项目
国家自然科学基金项目(42475001)、深圳可持续发展专项(KCXFZ20240903094007010)、深港联合资助项目(SGDX20240115105505010) （42475001）
