Article(id=1223204290227982350, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223204286050452333, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20221289, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1655827200000, receivedDateStr=2022-06-22, revisedDate=1659974400000, revisedDateStr=2022-08-09, acceptedDate=null, acceptedDateStr=null, onlineDate=1769564228827, onlineDateStr=2026-01-28, pubDate=1684944000000, pubDateStr=2023-05-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769564228827, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769564228827, creator=13701087609, updateTime=1769564228827, updator=13701087609, issue=Issue{id=1223204286050452333, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='5', pageStart='1', pageEnd='220', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769564227831, creator=13701087609, updateTime=1769567742010, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223219026013323264, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223204286050452333, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223219026013323265, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223204286050452333, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=43, endPage=47, ext={EN=ArticleExt(id=1223204290982957150, articleId=1223204290227982350, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Study on Sediment Transport Characteristics of Compound Bed Form Combined of Unsubmerged Rigid Vegetation and Sand Dunes, columnId=1222925279849341011, journalTitle=Water Resources and Power, columnName=HYDROLOGY, WATER RESOURCES AND ENVIRONMENT, runingTitle=null, highlight=null, articleAbstract=

The bedload sediment transport in the compound channel is affected by the presence of emergent rigid vegetation, and there were few studies available on this topic. The laboratory experiments and theoretical analysis were used to investigate the effect of emergent rigid vegetation in parallel arrangement on the threshold Shields number and the bedload transport intensity. The results show that the presence of emergent rigid vegetation in parallel arrangement increased the threshold Shields Number by 97.2%, and the bedload transport intensity reduced by more than 80%. The modified Engelund Formula that was applicable to the emergent rigid vegetation in parallel arrangement conditions was developed to calculate the bedload transport intensity. The formula was shown to have a high accuracy by applying it to the other studies.

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鉴于复合床面条件下刚性非淹没植物改变推移质输沙特性的相关研究成果较少,为此采用水槽试验和理论分析方法,研究了平行排列的刚性非淹没植物对泥沙起动谢尔兹数和推移质输沙强度的影响。结果表明,平行排列的刚性非淹没植物使得泥沙起动谢尔兹数增大了97.2%,推移质输沙率降低了80%以上。通过理论分析提出了适用于刚性非淹没植物平行排列条件下恩格隆推移质输沙率公式,经验证该公式具有较高的精确度。

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叶志恒(1993-),男,硕士、工程师,研究方向为河流动力学E-mail:

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叶志恒(1993-),男,硕士、工程师,研究方向为河流动力学E-mail:

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叶志恒(1993-),男,硕士、工程师,研究方向为河流动力学E-mail:

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沙波与刚性非淹没植物复合床面推移质泥沙输移特性研究
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叶志恒 1 , 唐立模 2 , 倪培桐 1 , 苗青 1
水电能源科学 | 水文水资源与环境 2023,41(5): 43-47
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水电能源科学 | 水文水资源与环境 2023, 41(5): 43-47
沙波与刚性非淹没植物复合床面推移质泥沙输移特性研究
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叶志恒1 , 唐立模2, 倪培桐1, 苗青1
作者信息
  • 1.广东省水利水电科学研究院,广东 广州 510610
  • 2.河海大学水利水电学院,江苏 南京 210098
  • 叶志恒(1993-),男,硕士、工程师,研究方向为河流动力学E-mail:

Study on Sediment Transport Characteristics of Compound Bed Form Combined of Unsubmerged Rigid Vegetation and Sand Dunes
Zhi-heng YE1 , Li-mo TANG2, Pei-tong NI1, Qing MIAO1
Affiliations
  • 1.Guangdong Research Institute of Water Resources and Hydropower, Guangzhou 510610, China
  • 2.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
出版时间: 2023-05-25 doi: 10.20040/j.cnki.1000-7709.2023.20221289
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鉴于复合床面条件下刚性非淹没植物改变推移质输沙特性的相关研究成果较少,为此采用水槽试验和理论分析方法,研究了平行排列的刚性非淹没植物对泥沙起动谢尔兹数和推移质输沙强度的影响。结果表明,平行排列的刚性非淹没植物使得泥沙起动谢尔兹数增大了97.2%,推移质输沙率降低了80%以上。通过理论分析提出了适用于刚性非淹没植物平行排列条件下恩格隆推移质输沙率公式,经验证该公式具有较高的精确度。

沙波  /  刚性非淹没植物  /  复合床面  /  推移质泥沙  /  输移特性

The bedload sediment transport in the compound channel is affected by the presence of emergent rigid vegetation, and there were few studies available on this topic. The laboratory experiments and theoretical analysis were used to investigate the effect of emergent rigid vegetation in parallel arrangement on the threshold Shields number and the bedload transport intensity. The results show that the presence of emergent rigid vegetation in parallel arrangement increased the threshold Shields Number by 97.2%, and the bedload transport intensity reduced by more than 80%. The modified Engelund Formula that was applicable to the emergent rigid vegetation in parallel arrangement conditions was developed to calculate the bedload transport intensity. The formula was shown to have a high accuracy by applying it to the other studies.

sand ripple  /  unsubmerged rigid vegetation  /  composite bed surface  /  bedload sediment  /  transport characteristics
叶志恒, 唐立模, 倪培桐, 苗青. 沙波与刚性非淹没植物复合床面推移质泥沙输移特性研究. 水电能源科学, 2023 , 41 (5) : 43 -47 . DOI: 10.20040/j.cnki.1000-7709.2023.20221289
Zhi-heng YE, Li-mo TANG, Pei-tong NI, Qing MIAO. Study on Sediment Transport Characteristics of Compound Bed Form Combined of Unsubmerged Rigid Vegetation and Sand Dunes[J]. Water Resources and Power, 2023 , 41 (5) : 43 -47 . DOI: 10.20040/j.cnki.1000-7709.2023.20221289
  • 广东省水利科技创新项目(2021-07)
2023年第41卷第5期
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doi: 10.20040/j.cnki.1000-7709.2023.20221289
  • 接收时间:2022-06-22
  • 首发时间:2026-01-28
  • 出版时间:2023-05-25
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  • 收稿日期:2022-06-22
  • 修回日期:2022-08-09
基金
广东省水利科技创新项目(2021-07)
作者信息
    1.广东省水利水电科学研究院,广东 广州 510610
    2.河海大学水利水电学院,江苏 南京 210098
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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