欢迎访问昆明冶金高等专科学校学报官方网站,今天是 分享到:

昆明冶金高等专科学校学报 ›› 2024, Vol. 40 ›› Issue (4): 15-.DOI: doi:10.3969/j.issn.1009-0479.2024.04.003

• 资源开发与测绘 • 上一篇    下一篇

暴雨工况下岗地土岩界面滑坡稳定性评价#br# ———以镇江市岗地区为例#br#

  

  1. (江苏省地质矿产局第三地质大队,江苏镇江212000)
  • 收稿日期:2024-02-23 出版日期:2024-08-08 发布日期:2025-07-08
  • 作者简介:崔 雨(1990-),女,河南周口人,工程师,工程硕士,主要从事地灾评估、地质灾害应急与地质环境保 护研究。
  • 基金资助:
    江苏省地质局科研项目“江苏省典型地质灾害降雨量阈值研究”(2022KY03)。

StabilityEvaluationofSoilrockInterfaceLandslideinthe#br# HillyAreaUnderRainstorm Condition:ACaseStudy#br# oftheHighlandAreainZhenjiangCity#br#

  1. (TheThirdGeologicalTeamofJiangsuGeologicalandMineralBureau,Zhenjiang212000,Jiangsu,China)
  • Received:2024-02-23 Online:2024-08-08 Published:2025-07-08

摘要: 摘 要:镇江市岗地区滑坡具有“上土下岩”双层结构特征,地形特征一般上陡下缓,为该地区滑坡的主要类
型。为掌握该地区滑坡的特征和发展趋势,在现场踏勘、监测的基础上,选取研究区典型区域DE段、EF段分
析滑坡体的特征、形成机理和破坏模式,并利用毕肖普法对滑坡稳定性进行了综合评价。研究发现,岗地区土
岩界面滑坡多发育在山体周围,滑坡整体为前后缘薄中间厚,滑坡后壁和滑坡周界清晰,规模以小型滑坡为主。
降雨和人工削坡是土岩界面滑坡的主要诱导因素,暴雨工况下上部土层抗剪强度明显降低,在重力及外力作用
下极易沿软弱结构面向下滑动形成滑坡。同时,对获取岗地区岩土层工程地质特征给出了合理化建议,对土岩
界面滑坡稳定性评价具有一定的借鉴意义。

关键词: 岗地地貌, 土岩界面, 滑坡特点, 稳定性评价, 毕肖普法

Abstract: Abstract:LandslideinthehillyareaofZhenjiangcityhasthecharacteristicsofadoublelayerstructure
of“soilaboveandrockbelow”,andthetopographiccharacteristicsaregenerallysteeponthetopand
slowonthebottom,forminggoodcatchmentconditions,whichisthemaintypeoflandslideinthisarea.
Inordertograspthecharacteristicsanddevelopmenttrendofthistypeoflandslide,onthebasisoffield
surveyandmonitoring,thecharacteristics,formationmechanismandfailuremodeoflandslidewereana
lyzedinDEandEFsectionsoftypicalareasinthestudyarea,andthestabilityoflandslidewascompre
hensivelyevaluatedbyBishopmethod.Thestudyfoundthatthesoilrockinterfacelandslidesinthehilly
areaaremostlydevelopedaroundthemountain.Theoveralllandslideisthininthefrontandrearedges
andthickinthemiddle.Thelandslidescarpandtheperipheryoflandslideareclear,andthescaleis
dominatedbysmalllandslides.Rainfallandartificialslopecuttingarethemaininducingfactorsofsoil
rockinterfacelandslide.Undertheconditionofrainstorm,theshearstrengthoftheuppersoillayerisob
viouslyreduced,anditiseasytoslidedownalongtheweakstructureundertheactionofgravityandex
ternalforcetoformlandslide.Atthesametime,reasonablesuggestionsaregivenforobtaininggeotechni
calengineeringgeologicalcharacteristicsintheregion,whichhascertainreferencesignificanceforthe
stabilityevaluationofsoilrockinterfacelandslide.

Key words: hillylandform, soilrockinterface, landslidecharacteristics, evaluationofstability, Bishop
method

中图分类号: