地面与孔中地质雷达方法联作在覆盖型岩溶塌陷隐患识别中的应用
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摘要
利用地面雷达探测技术,结合工程地质钻探以及孔中雷达测井技术,形成地面与孔中互补的立体探测,识别出岩溶塌陷的早期隐患。研究表明,地面雷达探测可以定位浅地表的土洞、土层扰动区以及溶洞,可指导地质钻探工程布置和孔中取样位置选定,并能提供孕灾过程持续监测;工程地质钻探可以准确查明地层结构性状和验证地面雷达探测异常;孔中雷达探测可以弥补地面雷达探测深度浅和工程地质钻孔数量有限的不足,更大范围地提供深层地质信息。地面雷达与孔中雷达组合探测并结合覆盖型岩溶塌陷孕灾过程的研究,可在灾害隐患识别方面为土地规划利用和地质灾害防治等提供有力技术和理论支持。
The surface-based ground penetrating radar with the engineering geological drilling and the borehole ground penetrating radar was applied,so that a more reasonable and practical method system was formed to detect disaster-pregnant process of cover-collapse sinkhole. The research shows that the surface-based ground penetrating radar can locate near-surface soil holes,soil disturbance zones and karst caves,guiding the selection of drilling and sampling locations,and providing continuous monitoring. The accuracy and effective range of soil stratum structure and ground radar detection result can be determined by engineering geological drilling. The borehole ground penetrating radar can make up for the shortage of conventional ground radar technology and drilling,and provide geological information on a larger scale. The synthetic approach can provide strong technical and theoretical support for land planning and geological disaster prevention and controlling.
The surface-based ground penetrating radar with the engineering geological drilling and the borehole ground penetrating radar was applied,so that a more reasonable and practical method system was formed to detect disaster-pregnant process of cover-collapse sinkhole. The research shows that the surface-based ground penetrating radar can locate near-surface soil holes,soil disturbance zones and karst caves,guiding the selection of drilling and sampling locations,and providing continuous monitoring. The accuracy and effective range of soil stratum structure and ground radar detection result can be determined by engineering geological drilling. The borehole ground penetrating radar can make up for the shortage of conventional ground radar technology and drilling,and provide geological information on a larger scale. The synthetic approach can provide strong technical and theoretical support for land planning and geological disaster prevention and controlling.
引文
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[13]Maresca R,Berrino G.Investigation of the buried structure of the Volturara Irpina Basin(southern Italy)by microtremor and gravimetric daR,Bta[J].Journal of Applied Geophysics,2016,128:96-109.
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[15]Cardarelli E,Cercato M,De Donno G,et al.Detection and imaging of piping sinkholes by integrated geophysical methods[J].Near Surface Geophysics,2014,12:439-450.
[16]陈贻祥,潘科.综合物探方法在岩溶塌陷探测中的应用分析[J].人民长江,2012,43(S2):9-11.
[17]陈建胜,陈从新.钻孔雷达技术的发展和现状[J].地球物理学进展,2008,23(5):1634-1640.
[18]Spillmann T,Maurer H,Willenberg H,et al.Characterization of an unstable rock mass based on borehole logs and diverse borehole radar data[J].Journal of Applied Geophysics,2007,61:16-38.
[2]雷明堂,蒋小珍.岩溶塌陷研究现状、发展趋势及其支撑技术方法[J].中国地质灾害与防治学报,1998,9(3):1-6.
[3]袁道先.新形势下我国岩溶研究面临的机遇和挑战[J].中国岩溶,2009,28(4):329-331.
[4]雷明堂.揭开岩溶塌陷地质灾害的面纱[J].国土资源科普与文化,2015(4):16-19.
[5]潘宗源,贾龙,刘宝臣.基于AHP和ArcGIS技术的岩溶塌陷风险评价---以遵义永乐镇为例[J].桂林理工大学学报,2016,36(3):464-470.
[6]谢春庆,王伟.地质雷达在大面积复杂岩溶场地勘察中的应用研究[J].工程勘察,2013,41(5):90-93.
[7]Zarroca M,Comas X,Gutiérrez F,et al.The application of GPR and ERI in combination with exposure logging and retrodeformation analysis to characterize sinkholes and reconstruct their impact on fluvial sedimentation[J].Earth Surf.Process.Landforms,2017,42:1049-1064.
[8]高阳,熊华山,彭明涛,等.三维高密度电法技术及其在岩溶塌陷勘探中的应用[J].桂林理工大学学报,2017,37(3):417-421.
[9]Kaufmann O,Deceuster J,Quinif Y.An electrical resistivity imaging-based strategy to enable site-scale planning over covered palaeokarst features in the Tournaisis area(Belgium)[J].Engineering Geology,2012,133-134:49-65.
[10]陈贻祥.地面微重力测量在工程地质勘察中的应用效果[J].水文地质工程地质,1995(4):43-46.
[11]Eppelbaum L V,Ezersky M,Al-Zoubi A,et al.Study of the factors affecting the karst volume assessment in the Dead Sea sinkhole problem using microgravity field analysis and 3-Dmodeling[J].Advances in Geosciences,2008,19:97-115.
[12]刘伟,甘伏平,赵伟,等.高密度电法与微动技术组合在岩溶塌陷分区中的应用分析---以广西来宾吉利塌陷为例[J].中国岩溶,2014,33(1):118-122.
[13]Maresca R,Berrino G.Investigation of the buried structure of the Volturara Irpina Basin(southern Italy)by microtremor and gravimetric daR,Bta[J].Journal of Applied Geophysics,2016,128:96-109.
[14]方大为.岩溶及土洞地球物理探测的应用研究[D].长沙:中南大学,2011.
[15]Cardarelli E,Cercato M,De Donno G,et al.Detection and imaging of piping sinkholes by integrated geophysical methods[J].Near Surface Geophysics,2014,12:439-450.
[16]陈贻祥,潘科.综合物探方法在岩溶塌陷探测中的应用分析[J].人民长江,2012,43(S2):9-11.
[17]陈建胜,陈从新.钻孔雷达技术的发展和现状[J].地球物理学进展,2008,23(5):1634-1640.
[18]Spillmann T,Maurer H,Willenberg H,et al.Characterization of an unstable rock mass based on borehole logs and diverse borehole radar data[J].Journal of Applied Geophysics,2007,61:16-38.