[1]孔令莹,徐远志,赵贵章,等.基于多种方法联合反演的河床岩性结构特征研究[J].华东地质,2023,44(02):150-159.[doi:10.16788/j.hddz.32-1865/P.2023.02.004]
　KONG Lingying,XU Yuanzhi,ZHAO Guizhang,et al.Study on the structural characteristics of riverbed lithology based on the joint inversion of multiple methods[J].East China Geology,2023,44(02):150-159.[doi:10.16788/j.hddz.32-1865/P.2023.02.004]
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基于多种方法联合反演的河床岩性结构特征研究()
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《华东地质》[ISSN:2096-1871/CN:32-1865/P]

卷:
44
期数:
2023年02期
页码:
150-159
栏目:
水资源专题
出版日期:
2023-06-17

文章信息/Info

Title:
Study on the structural characteristics of riverbed lithology based on the joint inversion of multiple methods
作者:
孔令莹1;  徐远志2;  赵贵章1; 3;  刘文辉1;  谢思敏1
1. 华北水利水电大学, 河南 郑州 450046;
2. 山东省水利科学研究院, 山东 济南 250013;
3. 黄河流域水资源高效利用省部共建协同创新中心, 河南 郑州 450046
Author(s):
KONG Lingying1;  XU Yuanzhi2;  ZHAO Guizhang1; 3;  LIU Wenhui1;  XIE Simin1
1. North China University of Water Resources and Electric Power, Zhengzhou 450046, Henan, China;
2. Water Resources Research Institute of Shandong Province, Jinan 250013, Shandong, China;
3. Collaborative Innovation Center for Efficient Utilization of Water Resources, Zhengzhou 450046, Henan, China
关键词:
河床结构; 多普勒流速仪; 地质雷达; 高密度电阻率法; 淮北平原
Keywords:
riverbed structure; Doppler current meter; geological radar; high-density resistivity method; Huaibei Plain
分类号:
P33
DOI:
10.16788/j.hddz.32-1865/P.2023.02.004
摘要:
河床结构探测是研究河水-地下水转化过程的关键,复杂河床结构探测过程中,单一物探方法通常精度不高。本文采用多普勒声学流速仪、地质雷达法、高密度电阻率法相结合,在淮北平原典型工作区进行河床形态和沉积物分布特征探测,构建了完整的联合反演河床岩性结构特征的技术体系,取得了较好的识别效果。结果表明:新汴河节制闸上游呈"蝶形",河床结构均匀,底泥厚度变化范围小;下游河床形态受分水坝影响起伏较大,河床形态不平整,底泥厚度为0.8~1 m;涡河处河道形态呈半椭圆形,且底泥两岸薄中间厚。韩村剖面受抽砂干扰严重,河床出现中间高两侧低的情况,底泥分布不均匀;两河口断面下存在弱透水层(粉质黏土),下方为承压含水层,其潜水含水层分布不均匀。实践证明,多种技术联合反演在河床形态探测上能够相互印证,提高成果解译的可靠性和准确性,为河水-地下水转化研究提供支撑。
Abstract:
The detection of riverbed structure is the key to study river-groundwater transformation. Single physical exploration method is usually of low accuracy in the detection of complex riverbed structure. This study jointly adopt Doppler acoustic velocity meter, geological radar and high-density resistivity method to investigate riverbed morphology and detect sediments distribution characteristics in the typical working area of Huaibei Plain. A complete technical system of joint inversion of riverbed lithological structure characteristics is accordingly constructed, achieving a good identification effect. The results show that: the upstream of the Xinbianhe River control gate is "butterfly-shaped" with uniform riverbed structure and small variation of sediment thickness. The shape of downstream riverbed fluctuated greatly under the influence of the sub-dam, with the sediment thickness of 0.8~1 m. The channel of Guohe River is semi-oval in shape, and the bottom mud is thin on both sides but thick in the middle. Seriously disturbed by sand pumping, the riverbed in Hancun section is high in the middle and low on both sides, resulting in uneven distribution of sediment. There is a weak permeable layer (silty clay) between Lianghekou section and a confined aquifer, and the local phreatic aquifer distributes unevenly. The practice has proved that the joint inversion of various techniques can corroborate mutually in riverbed morphology detection and improve the reliability and accuracy of results interpretation, providing support for the study of river-groundwater transformation.

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备注/Memo

备注/Memo:
收稿日期:2022-5-28;改回日期:2022-10-14。
基金项目:水文水资源与水利工程科学国家重点实验室"’一带一路’水与可持续发展科技基金(编号:2021490511)"、宁夏财政厅(编号:6400201901273)项目联合资助。
作者简介:孔令莹,1998年生,女,硕士研究生,主要从事水文地质方面的研究。Email:klyyy559@163.com。
通讯作者:赵贵章,1975年生,男,副教授,博士,主要从事水文地质方面的研究。Email:zhaoguizhang@ncwu.edu.cn。
更新日期/Last Update: 1900-01-01