Application of Parallel Electrical Method and Multi-dimensional 
Imaging Technology in River Cavern Survey

doi:10.3969/j.issn.1674-0696.2017.10.10

Journal of Chongqing Jiaotong University(Natural Science) ›› 2017, Vol. 36 ›› Issue (10): 56-61.DOI: 10.3969/j.issn.1674-0696.2017.10.10

• Port & Waterway · Hydraulic & Hydroelectric · Resources & Environment • Previous Articles Next Articles

Application of Parallel Electrical Method and Multi-dimensional Imaging Technology in River Cavern Survey

LI Hongwen1，2，3，GONG Dunhong4，YU Fei1，2，3，TAN Lei1，2，3，XU Donghai5

(1.Zhejiang Institute of Hydraulics & Estuary,Hangzhou 310020,Zhejiang ,P. R.China; 2.Zhejiang Guangchuan Engineering Consulting Co.,Ltd.,Hangzhou 310020, Zhejiang ,P. R. China; 3.Zhejiang Provincial Key Laboratory of Water Conservancy Disaster Prevention and Reduction,Hangzhou 310020, Zhejiang ,P. R.China; 4.Wenzhou Engineering Investigation Institute Co.,Ltd.,Wenzhou 325006, Zhejiang ,P. R. China; 5.Wenzhou Longda Reclamation and Development Construction Co. ,Ltd.,Wenzhou 325006, Zhejiang ,P. R. China)

Received:2016-10-25 Revised:2017-05-12 Online:2017-10-27 Published:2017-10-27

河道岩溶勘察并行电法多维成像技术应用研究

李红文1，2，3，龚敦红4，余斐1，2，3，谭磊1，2，3，徐东海5

(1.浙江省水利河口研究院，浙江杭州 310020；2.浙江广川工程咨询有限公司，浙江杭州 310020； 3.浙江省水利防灾减灾重点实验室，浙江杭州 310020；4.温州工程勘察院有限公司，浙江温州 325006； 5.温州龙达围垦开发建设有限公司，浙江温州 325006)

作者简介:李红文(1970—)，男，河南平顶山人，高级工程师，主要从事水利水电工程地质勘察方面的研究。E-mail：496962410@qq.com。
基金资助:
水利部技术示范项目（SF-201725）;浙江省省属科研院所专项计划（2014F50016）;浙江省水利河口研究院院长基金项目（ZIHE2016014）;浙江省科技厅重点计划研发项目(2017C03008);浙江省水利厅科技计划项目(RC1543);浙江省科技厅院所扶持专项项目(2016F50003)

Abstract

Abstract: As for the possible concealed corrosion body that may exist at certain section of watercourse in Jiangshan Port karst area ，the parallel electric method which adopted quasi-earthquake power supply mode and synchronous acquisition of a huge amount of data was proposed as the main means of detection technology.Besides，combining with drill disclosure data，the plane distribution of karst body under the sides of watercourse was analyzed.The structure characteristics of the riverbed bottom area were further predicted.According to the experimental study results，it is indicated that two-dimensional apparent resistivity section reveals the two-dimensional distribution of the karst body in the whole exploration line control area，which effectively outlines the buried depth ，size and scale of corrosion body piercing in the vertical plane.Because of the correlation of karst caves of both sides at the bottom of the riverbed，the three-dimensional sections of resistivity with different depth were extracted，which intuitively showed that both sides of karst caves were obviously different in elevation and size on vertical distribution; the right bank of karst caves extended within the riverbed，but it didn’t reach the left bank.The research results provide scientific and technical support for the comprehensive reclamation and later operation maintenance of the river basin.

Key words: hydraulic engineering, parallel electrical method, covered karst, cavern survey, 3D resistivity

摘要： 针对江山港岩溶区某段河道内可能存在的隐伏溶蚀体，提出了采用拟地震化供电方式且同步采集海量数据的并行电法为主要探测技术手段，并结合钻孔揭露资料，分析了岩溶体在河道两岸下方的平面展布，进一步预测河床底部区地层的构造特征。试验研究表明：二维视电阻率断面揭示出整个测线控制区域的岩溶体的二维分布，有效地勾勒出溶蚀洞体在垂面上的埋深、大小及规模等信息；考虑到两岸溶洞在河床底部的关联性问题，提取不同深度的电阻率立体化切片，直观地显示出河道两岸溶洞在垂向上分布高程不一、大小差异明显以及右岸溶洞在河床内延展但并未贯通至左岸的特点，研究成果为流域综合治理以及后期运行维护提供科学地技术支撑。

关键词: 水利工程, 并行电法, 隐伏岩溶, 岩溶勘察, 三维电阻率

CLC Number:

P631

LI Hongwen1，2，3，GONG Dunhong4，YU Fei1，2，3，TAN Lei1，2，3，XU Donghai5. Application of Parallel Electrical Method and Multi-dimensional Imaging Technology in River Cavern Survey[J]. Journal of Chongqing Jiaotong University(Natural Science), 2017, 36(10): 56-61.

李红文1，2，3，龚敦红4，余斐1，2，3，谭磊1，2，3，徐东海5. 河道岩溶勘察并行电法多维成像技术应用研究[J]. 重庆交通大学学报（自然科学版）, 2017, 36(10): 56-61.

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Application of Parallel Electrical Method and Multi-dimensional Imaging Technology in River Cavern Survey

河道岩溶勘察并行电法多维成像技术应用研究

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