贵州三叠纪垄头组软岩优势结构面研究意义和进展  

Significance and Progress in the Study on the Dominant Structural Plane of Soft Rock in the Triassic Langtou Formation,Guizhou

作　　者：潘网生 马宗源 傅良同[1] Pan Wangsheng;Ma Zongyuan;Fu Liangtong(School of Tourism and Resources Environment,Qiannan Normal University for Nationalites,Duyun 558000,Guizhou,China;Guizhou Communications Polytechnic,Guiyang 551400,Guizhou,China;Institute of Geotechnical Engineering,Xi'an University of Technology,Xi'an 710048,Shaanxi,China)

机构地区：[1]黔南民族师范学院旅游与资源环境学院,贵州都匀558000 [2]贵州交通职业技术学院,贵州贵阳551400 [3]西安理工大学岩土工程研究所,陕西西安710048

出　　处：《绿色科技》2024年第6期236-240,共5页Journal of Green Science and Technology

基　　金：黔南民族师范学院支持引进高层次人才研究专项项目(编号:2021qnsyrc03);黔南民族师范学院2024年度重点研究科研能力提升项目(编号:2024zdzk07);贵州省自然科学基金重点项目(编号:黔科合基础[2018]1416);黄土高原土壤侵蚀与旱地农业国家重点实验室基金课题(编号:A314021402-202113)。

摘　　要：中国天眼(five-hundred-meter aperture spherical radio telescope,FAST)落成于贵州省平塘县。FAST台址地区主要出露三叠纪垄头组地层,属中厚层致密灰岩和白云岩,内含软弱泥灰岩夹层。受区域褶皱影响,该泥灰岩夹层为与区域断裂构成优势结构面组合,一定的外界条件(如地震动、人工切坡开挖、降雨等)下易发展成为优势滑动面或岩体崩塌面,是不可忽视的重要地质灾害隐患。开展三叠纪垄头组软岩岩性及优势结构面研究有助于揭示地质灾害触发的临界条件、过程机制和破坏模式,可以为地质灾害早期预警、地质灾害风险排查、评估及防治对策提供专业性指导意见,更好地服务于国家科技计划和重大科学工程。"China Sky Eye"(FAST)is one of the national major science and technology infrastructure construction projects,completed in Dawodang,Kedu Town,Pingtang County,Guizhou Province.This area is mainly exposed to the Triassic Longtou Formation,which belongs to the medium-thick dense limestone and dolomite,containing soft marl interlayers.Affected by regional folding,this marl interlayer is a combination of advantageous structural planes with regional faults,and it is easy to develop into advantageous sliding plane or rock mass collapse surface under certain external conditions(such as ground motion,artificial slope cutting excavation,rainfall,etc.),which is an important geological hazard that cannot be ignored in the FAST platform site area.The study of soft rock lithology and dominant structural plane of Longtou Formation is helpful to reveal the critical conditions and process mechanism and failure mode triggered by geological disasters,which can provide professional guidance for the early warning of geological disasters in the site area of FAST,geological disaster risk investigation,assessment and prevention countermeasures,and better serve the national science and technology plan to support the core scientific objectives of FAST.

关 键 词：岩性 研究意义 软化机理 破坏机理 贵州 

分 类 号：P64[天文地球—地质矿产勘探]