探地雷达在丘陵山区滑坡地质灾害隐患勘查中的应用  

Application of ground penetrating radar to geological hazard exploration of landslides in hilly and mountainous areas

作　　者：刘惠阳 张族坤 万璐璐 洪庆仁 梅伟标 邱锦安 LIU Huiyang;ZHANG Zukun;WAN Lulu;HONG Qingren;MEI Weibiao;QIU Jinan(Guangdong Province Geology Engineering Company,Guangzhou 510080,Guangdong,China;Guangdong Province Geological Disaster Emergency Rescue Technology Center,Guangzhou 510080,Guangdong,China)

机构地区：[1]广东省地质工程公司,广东广州510080 [2]广东省地质灾害应急抢险技术中心,广东广州510080

出　　处：《城市地质》2024年第4期514-520,共7页Urban Geology

基　　金：龙川县地质灾害精细调查评价项目(县域成果集成)(H202202025);广东省地质灾害应急抢险技术能力提升研究项目(0809-2140GDC35071);广东省重大突发地质灾害应急监测预警与处置技术研究项目(2022025);广东省全省地质灾害风险普查(1∶25万)项目(0835-200Z22802231)联合资助。

摘　　要：粤北丘陵山区地质环境脆弱,滑坡地质灾害频发,采用高性价比的勘查手段对滑坡隐患进行勘查,确定其空间形态及预测其发展趋势意义重大。文章采用探地雷达对广东省河源市龙川县某滑坡隐患进行勘查,勘查结果表明地质雷达波在滑坡体滑动面、基岩风化界面的反射差异明显,地质剖面分层清晰,对上覆土层、风化层、基岩等地质体的刻画准确、可靠,其探测结果与钻探资料基本吻合。The geological environment in the hilly and mountainous areas of northern Guangdong is fragile,and landslide geological disasters occur frequently.It is of great significance to use cost-effective exploration methods to explore landslide hazards,determine their spatial form and predict their development trends.In this paper,GPR is used to explore a landslide hazard in Longchuan County,Heyuan City,Guangdong Province.The exploration results show that the reflections of GPR waves on the sliding surface of landslide and the weathering interface of bedrock are obviously different.The geological profiles are clearly layered,which accurately and reliably depict the geological bodies such as overburden,weathered layer and bedrock.The detection results are basically consistent with the drilling data.

关 键 词：探地雷达 丘陵山区 滑坡隐患 勘查 

分 类 号：P631.3[天文地球—地质矿产勘探] P642.22[天文地球—地质学]