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《工程(英文)》 >> 2021年 第7卷 第2期 doi: 10.1016/j.eng.2020.12.011

利用GPS数据资料调查昭阳湖洪滩区沉积物的细度和含水量

Division of Science Education, Kangwon National University, Gangwon-do 24341, Republic of Korea

收稿日期: 2018-10-20 修回日期: 2020-02-19 录用日期: 2020-03-04 发布日期: 2020-12-29

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摘要

昭阳湖是韩国最大的湖泊,与江原道的春川市、杨口郡和麟蹄郡接壤。作为环境资源,昭阳湖被广泛用于水电、防洪和供水。为此,本文调查了昭阳湖洪滩区,并对该地区的沉积物进行了分析。文中利用GPS数据和航空摄影技术监测了昭阳湖洪滩区的沉积物。为了确保采样位置测量的准确性,我们比较了来自三个GPS单元的数据。在三个地点采集了沉积物样本:两个地点在洪滩区的东部平原地区;一个地点在西部地区。总共收集了8个样本:其中在东部采样点采集了三个样本,采集深度以每10 cm的间隔采集到30 cm的深度。在西部采样点采集了两个样本,采集深度分别为10 cm和30 cm。收集样品后分析了颗粒大小和含水量的垂直趋势和水平趋势。沉积物样品的大小从粗粒到极粗粒,呈负斜率趋势分布,这表明溃口有东移的趋势。洪滩区东侧的含水量高,有发生溃口的可能性,且东侧发生溃口的概率比西侧高。这项研究结果表明,通过对颗粒细度、含水量、泥沙沉积量和泥沙去除率的分析,可以了解和预测昭阳湖的溃口运动方向和泥沙分布情况。

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