城市地质2025，Vol.20Issue(1)：98-106,9.DOI:10.3969/j.issn.2097-3764.2025.01.012
北京房山地质灾害隐患与地层岩性-地质构造耦合性分析
Coupling analysis of geological hazards and stratigraphic lithology-geological structure in Fangshan District,Beijing
摘要
Abstract
Fangshan District is located in the southwestern mountainous area of Beijing.The potential geological hazards in the area were unevenly distributed in each stratigraphic unit,and the order of the probability of catastrophe in each strata was Permian,Carboniferous,Triassic,Jurassic,Cambrian,Ordovician,Qingbaikou,Jixian,Great Wall,Cretaceous and Quaternary.Different engineering geological conditions also affect the distribution of geological hazards,and collapses and landslides(including unstable slopes)mainly occur in weak karst hard limestone and dolomite rock formations,which have the characteristics of joint development,good permeability and uneven mechanical properties.Debris flows,on the other hand,mostly occur in the soft siltstone formations with strong weathered argillaceous interbedded interlayers,which usually appear to be loose in structure and easy to weather.With Fangshan District is located in the southwestern mountainous area of Beijing.The potential geological hazards in the area are unevenly distributed in each stratigraphic unit,and the order of the probability of catastrophe in each stratum is Permian,Carboniferous,Triassic,Jurassic,Cambrian,Ordovician,Qingbaikou,Jixian,Great Wall,Cretaceous and Quaternary.Different engineering geological conditions also affect the distribution of geological hazards.Collapses and landslides(including unstable slopes)mainly occur in weak karst hard limestone and dolomite rock formations,which have the characteristics of joint development,good permeability and uneven mechanical properties.Debris flows,on the other hand,mostly occur in the soft siltstone formations with strong weathered argillaceous interbedded interlayers,which usually appear to be loose in structure and easy to weather.With enhanced development degrees of the geological structure,the density of geological hazard spots also increases,indicating that the control effect of geological structure on the development of geological hazards is increasingly significant.关键词
地质灾害隐患/地层岩性/地质构造/耦合性Key words
geological hazards/stratigraphic lithology/geological formations/coupling引用本文复制引用
黄艳超,胡龙兵,周萌,李宽宽,张磊,赵飞..北京房山地质灾害隐患与地层岩性-地质构造耦合性分析[J].城市地质,2025,20(1):98-106,9.基金项目
2021年北京市突发地质灾害隐患治理项目(TC21080G7)、北京市房山区突发地质灾害详细调查(1241STC60669/01)联合资助 （TC21080G7）
