Sedimentary process and strength of cohesive sediment in an estuarine channel
河口河道粘性沉积物的沉积过程和强度
基本信息
- 批准号:20760334
- 负责人:
- 金额:$ 2.75万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Young Scientists (B)
- 财政年份:2008
- 资助国家:日本
- 起止时间:2008 至 2009
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The river bathymetry and distribution of the riverbed material were frequently analyzed during 2002-2009 in the estuarine channel of the Chikugogawa River. The bed material was mainly composed of silt and clay during low flow periods; however, it was eroded and flushed away, and after the storm runoff, it changed to sand. Furthermore, over a period of several months, the sand bed was gradually covered with fine sediment, and the thickness of the muddy layer became 1-2 m after half a year. The acquired cohesiveness could be observed within a few days after the particles were deposited on the bed, and it increased linearly with time. It accounted for approximately 67% of the natural sediment cohesiveness.
2002-2009年期间,对奇库戈加瓦河河口航道的水深测量和河床泥沙分布进行了频繁的分析。枯水期河床主要由粉砂和粘土组成,经冲刷冲刷,暴雨径流后转为砂质。经过几个月的时间,砂层逐渐被细小的泥沙覆盖,半年后泥质层厚度达到1-2m。在颗粒沉积到床上后的几天内就可以观察到获得的粘聚性,并随着时间的推移呈线性增加。它约占天然沉积物粘聚性的67%。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
河川感潮域における土砂動態~ADCPを利用したフラックス計測~
河流潮汐区的泥沙动态〜使用 ADCP 进行通量测量〜
- DOI:
- 发表时间:2009
- 期刊:
- 影响因子:0
- 作者:奥野功太郎;横山勝英;山本浩一;金子祐;横山勝英;奥野功太郎;横山勝英
- 通讯作者:横山勝英
筑後川感潮河道における河床地形・材料の変動特性に関する長期連続調査
筑后川潮道河床地形及物质变化特征的长期连续调查
- DOI:
- 发表时间:2010
- 期刊:
- 影响因子:0
- 作者:横山勝英;長屋光彦;金子祐;山本浩一;高島創太郎
- 通讯作者:高島創太郎
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YOKOYAMA Katsuhide其他文献
ESTIMATION OF NON-UNIFORM WIND FIELD OVER A MEANDERING RESERVOIR
曲流水库上非均匀风场的估计
- DOI:
10.2208/jscejhe.78.2_i_1039 - 发表时间:
2022 - 期刊:
- 影响因子:0
- 作者:
MALLARE Reden Armand;SHINTANI Tetsuya;YOKOYAMA Katsuhide - 通讯作者:
YOKOYAMA Katsuhide
TEMPORAL VARIATION OF SALINITY AND DISSOLVED OXIGEN IN A SALTMARSH FORMED AFTER THE GREAT EAST JAPAN EARTHQUAKE
日本东大地震后形成的盐沼中盐度和溶解氧的时间变化
- DOI:
10.2208/jscejer.76.5_i_27 - 发表时间:
2020 - 期刊:
- 影响因子:0
- 作者:
MATSUSHITA Kazuma;YOKOYAMA Katsuhide;NAKAYAMA Kouji;HATAKEYAMA Makoto - 通讯作者:
HATAKEYAMA Makoto
CHANGES IN SIZE DISTRIBUTION OF PHYTOPLANKTON IN RESPONSE TO TIDAL VARIABILITY IN THE CHIKUGO RIVER ESTUARY
筑后河口浮游植物大小分布对潮汐变化的响应
- DOI:
10.2208/jscejhe.78.2_i_1069 - 发表时间:
2022 - 期刊:
- 影响因子:0
- 作者:
NWE Lett Wai;AZHIKODAN Gubash;YOKOYAMA Katsuhide - 通讯作者:
YOKOYAMA Katsuhide
Non-equilibrium bed variation analysis in stony-bed rivers considering changes in the bed surface structure: application to enlargement mechanism of the Monobe river mouth due to floods
考虑床面结构变化的石质河床非平衡河床变化分析:在洪水造成的莫部河口扩大机制中的应用
- DOI:
- 发表时间:
2020 - 期刊:
- 影响因子:0
- 作者:
MALLARE Reden Armand;SHINTANI Tetsuya;YOKOYAMA Katsuhide;Yoshiharu Takemura ,Shoji Fukuoka - 通讯作者:
Yoshiharu Takemura ,Shoji Fukuoka
YOKOYAMA Katsuhide的其他文献
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{{ truncateString('YOKOYAMA Katsuhide', 18)}}的其他基金
Lateral sediment transport and morphodynamics in an meandering estuarine channel
蜿蜒河口河道的横向沉积物输送和形态动力学
- 批准号:
22560520 - 财政年份:2010
- 资助金额:
$ 2.75万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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