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.
作者
贾龙
蒙彦
吴远斌
潘宗源
JIA Long;MENG Yan;WU Yuan-bin;PAN Zong-yuan(Institute of Karst Geology/Key Laboratory of Karst Collapse Prevention, Chinese Academy of Geological Sciences,Guilin 541004,China)
出处
《桂林理工大学学报》
CAS
北大核心
2018年第3期437-443,共7页
Journal of Guilin University of Technology
基金
国家自然科学基金项目(41402284
41472298)
中国地质局调查项目(1212011220191
DD20160254)
关键词
覆盖型岩溶
岩溶塌陷
地质雷达
孕灾过程
covered karst
karst collapse
ground penetrating radar(GPR)
disaster forming process
作者简介
贾龙(1985—),男,助理研究员,研究方向:岩溶地区工程地质,jialong@karst.ac.cn。
