摘要
2017年受台风影响广东省某堤防部分堤段损毁,总缺口长175 m,灾后相关部门迅速对缺口堤段进行修复。2018年4月,修复堤段出现渗漏,严重威胁堤防安全。物探检测法是堤防渗漏抢险探测的最优手段,但目前物探技术均存在多解性和局限性,为弥补单一探测方法的不足,准确探明堤防渗漏险情,采用高密度电法和探地雷达综合物探技术对险情堤段进行探测,并结合现场检查和设计资料进行综合分析。结果表明:高密度电法和探地雷达综合物探技术能有效探测堤防渗漏险情;推测险情段桩号K0+618和桩号K0+642 m两处存在渗漏通道,堤防浸润界面深约3 m。
A section of a dike in Guangdong Province were damaged with a total length of 175 m affected by typhoon in 2017,and the damage was quickly repaired after the disaster.In April 2018,the leakage occurred in the repaired dike section,which seriously threatened the dike safety.Geophysical prospecting method is the best technique for emergency detection of embankment seepage;however,it has the problem of nonunique solutions and many limitations.In order to solve the shortcomings of this single detection method so as to accurately detect embankment seepage,the high-density electrical method and ground penetrating radar integrated geophysical prospecting technology were used to detect the dangerous embankment section,and the field inspection and design data were combined for a comprehensive analysis.The results showed that high density resistivity method and ground penetrating radar integrated geophysical prospecting technology can effectively detect the seepage danger of embankment.It is speculated that there are two seepage channels in the dangerous section,located in pile number K0+618 m and K0+642 m,and the depth of the seepage interface of embankment is about 3 m.
作者
谭彩
潘展钊
袁明道
史永胜
刘建文
林悦奇
TAN Cai;PAN Zhanzhao;YUAN Mingdao;SHI Yongsheng;LIU Jianwen;LIN Yueqi(Guangdong Research Institute of Water Resources and Hydropower,Guangzhou 510610,China;Guangdong Dam Safety Technology Management Center,,Guangzhou 510610,China;Guangdong Provincial Key Laboratory of Hydrodynamics,Cuangzhou 510610,China)
出处
《水资源与水工程学报》
CSCD
2019年第5期184-188,共5页
Journal of Water Resources and Water Engineering
基金
广东省水利科技创新项目(2014-09)
深圳市水务发展专项资金科技创新项目(20170103)
关键词
综合物探技术
探地雷达
高密度电法
堤防渗漏
抢险探测
险情分析
comprehensive geophysical prospecting technology
ground penetrating radar
high density resistivity method
river embankment leakage
emergecy detection
dangerous condition analysis
