物探化探计算技术
物探化探計算技術
물탐화탐계산기술
COMPUTING TECHNIQUES FOR GEOPHYSICAL AND GEOCHEMICAL EXPLORATION
2014年
5期
535-540
,共6页
徐顺强%李德庆%杨利普%徐志萍%李怡青%姜磊%何永波%黄超杰%熊伟
徐順彊%李德慶%楊利普%徐誌萍%李怡青%薑磊%何永波%黃超傑%熊偉
서순강%리덕경%양리보%서지평%리이청%강뢰%하영파%황초걸%웅위
滑坡%电阻率%正反演模拟%高密度电法%工程抢险
滑坡%電阻率%正反縯模擬%高密度電法%工程搶險
활파%전조솔%정반연모의%고밀도전법%공정창험
landslip%resistivity%forward and reverse modeling%high density resistivity method%emergency proj ect
为了选定合适的地球物理勘探手段,在收集工作区前期的资料的基础上进行数值模拟,选取合适的勘探手段及观测系统能够提高工作效率,满足工程抢险的要求。本次研究利用历史钻探资料,通过高密度电法正反演模拟,得到不同地层的电阻率值差异情况,证明了高密度电法在某高速公路滑坡地质灾害抢险勘探中对滑坡面可以进行有效地识别,同时预测该滑坡面位于卵石土和砂泥岩的接触带上,平均深度约6m。以高密度电法在河南省某高速公路滑坡勘探中的应用为实例,利用高密度电阻率法在滑坡地质灾害发生后快速、无损的开展工作,为工程抢险的设计、施工提供基础探测数据、对滑坡发展情况做出合理预测,同时对现场进行的钻孔布设,地质灾害评估提供了指导性意见。
為瞭選定閤適的地毬物理勘探手段,在收集工作區前期的資料的基礎上進行數值模擬,選取閤適的勘探手段及觀測繫統能夠提高工作效率,滿足工程搶險的要求。本次研究利用歷史鑽探資料,通過高密度電法正反縯模擬,得到不同地層的電阻率值差異情況,證明瞭高密度電法在某高速公路滑坡地質災害搶險勘探中對滑坡麵可以進行有效地識彆,同時預測該滑坡麵位于卵石土和砂泥巖的接觸帶上,平均深度約6m。以高密度電法在河南省某高速公路滑坡勘探中的應用為實例,利用高密度電阻率法在滑坡地質災害髮生後快速、無損的開展工作,為工程搶險的設計、施工提供基礎探測數據、對滑坡髮展情況做齣閤理預測,同時對現場進行的鑽孔佈設,地質災害評估提供瞭指導性意見。
위료선정합괄적지구물리감탐수단,재수집공작구전기적자료적기출상진행수치모의,선취합괄적감탐수단급관측계통능구제고공작효솔,만족공정창험적요구。본차연구이용역사찬탐자료,통과고밀도전법정반연모의,득도불동지층적전조솔치차이정황,증명료고밀도전법재모고속공로활파지질재해창험감탐중대활파면가이진행유효지식별,동시예측해활파면위우란석토화사니암적접촉대상,평균심도약6m。이고밀도전법재하남성모고속공로활파감탐중적응용위실례,이용고밀도전조솔법재활파지질재해발생후쾌속、무손적개전공작,위공정창험적설계、시공제공기출탐측수거、대활파발전정황주출합리예측,동시대현장진행적찬공포설,지질재해평고제공료지도성의견。
In order to select an appropriate geophysical exploration means,we do the numerical simulation based on prelim-inary data of work area,and then select the appropriate exploration means and observation system to improve efficiency and meet the requirements of the project rescue.Referring to the historical drilling data,the author get resistivity differences in dif-ferent formations by using forward and reverse modeling,which proves the high density resistivity could identify the sliding surface effectively in a highway landslide disaster rescue and exploration and predict this sliding surface locating on the zone-of-contact between gravel soil and sand shale with the average depth of about 6km.Taking the application of the high density resistivity method in a highway landslide survey in Henan Province for example,the author provides the basic data after the landslide disaster for the engineering rescue design and construction by using the high density resistivity method rapidly and non-destructively.At last,we make a reasonable prediction of landslide development while offering the guidance for drilling laid and geological hazard assessment.