| 潼关以下库区冲淤机理分析 |
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| 引用本文： | 王培道,张根广. 潼关以下库区冲淤机理分析[J]. 水资源与水工程学报, 2007, 18(6): 62-64 |
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| 作者姓名： | 王培道 张根广 |
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| 作者单位： | 1. 运城市夹马口引洪管理局,山西,运城,044100
2. 西北农林科技大学西北水科所,陕西,杨凌,71210 |
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| 摘 要： | 通过对潼关以下库区冲淤机理分析发现,潼关-古夺河段的冲淤变化与古夺-大禹渡冲淤变化密切相关,古夺-大禹渡河段发生溯源冲淤变化是潼关-古夺河段发生沿程冲淤变化的前提和基础。若古夺-大禹渡河段发生溯源冲刷,则潼关-古夺河段发生沿程冲刷;若古夺-大禹渡河段发生溯源淤积,则潼关-古夺河段发生沿程淤积。大禹渡河段之所以常常发生溯源冲淤的原因在于,一年有5个月的运行水位回水末端均在大禹渡以上,造成大禹渡河段成为溯源冲淤的侵蚀基准面。
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| 关 键 词： | 溯源淤积 沿程淤积 淤积机理 |
| 文章编号： | 1672-643X（2007）06-0062-03 |
| 收稿时间： | 2006-05-28 |
| 修稿时间： | 2007-06-30 |
Mechnism analysis for the erosion and deposition in downstream of Tongguan of reservoir area |
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| WANG Pei-dao,ZHANG Gen-guang. Mechnism analysis for the erosion and deposition in downstream of Tongguan of reservoir area[J]. Journal of water resources and water engineering, 2007, 18(6): 62-64 |
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| Authors: | WANG Pei-dao ZHANG Gen-guang |
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| Abstract: | Based on the mechanism analysis for the erosion and deposition in downstream of Tongguan,it is found that riverbed changes in Tongguan-Guduo reaches was close related with the Guduo-Dayudu reches,and the changes in Guduo-Dayudu reches was the precondition for the Tongguan-Guduo reaches.When retrogressive erosion(deposition) occured in Guduo-Dayudu reches,then it will be occured in Tongguan-Guduo reaches.Moreover,the reason that retrogressive erosions often occur in Dayudu reaches is that the Dayudu reaches are the backwater region of the reservoir in almost five moths in a year,which makes the Dayudu reaches to be the erosional datum plane of retrogressive erosion /deposition upstream of the Dayudu reaches. |
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| Keywords: | retrogressive deposition progressive deposition deposition mechanism |
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