Article(id=1222963543511651015, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1222963536863678929, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20221493, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1658246400000, receivedDateStr=2022-07-20, revisedDate=1666108800000, revisedDateStr=2022-10-19, acceptedDate=null, acceptedDateStr=null, onlineDate=1769506830336, onlineDateStr=2026-01-27, pubDate=1682352000000, pubDateStr=2023-04-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769506830336, onlineIssueDateStr=2026-01-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769506830336, creator=13701087609, updateTime=1769506830336, updator=13701087609, issue=Issue{id=1222963536863678929, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='4', 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=1769506828752, creator=13701087609, updateTime=1769508076664, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1222968771057279321, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1222963536863678929, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1222968771057279322, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1222963536863678929, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=135, endPage=138, ext={EN=ArticleExt(id=1222963543767503578, articleId=1222963543511651015, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=A Method of Tunnel Roughness Estimation Based on Surface Roughness Hierarchical Sampling Measurement, columnId=1222925283779400191, journalTitle=Water Resources and Power, columnName=WATER CONSERVANCY AND HYDROPOWER ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

Roughness is an important parameter which reflects water transport capacity of water diversion project. The roughness value can be calculated by observing the frictional head loss. However, how to estimate the roughness is always a difficult problem in hydraulics for the new unworked water diversion project. The surface roughness of water conveyance buildings is a vital factor affecting the roughness value. So, this study proposed a surface roughness measurement method relies on hierarchical sampling. Taking a new in-situ reinforced concrete lining tunnel as an example, the statistical distribution of surface roughness and the minimum sample size of tunnel roughness estimation were analyzed. On this basis, the roughness value range of the tunnel project was estimated, which has a certain reference significance for predicting the water transport capacity of the new project and inspecting the construction quality of the lining.

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糙率是反映和影响工程输水能力的重要参数,可通过观测沿程水头损失的方法测算糙率值。但对于新建未通水工程,估算糙率值是一个难题。鉴于输水建筑物表面粗糙度是影响糙率值的最主要因素,提出一种基于分级抽样的表面粗糙度测量方法,并以某新建模筑钢筋混凝土衬砌隧洞为例,分析了该方法下表面粗糙度统计分布规律及使用该方法估算隧洞粗糙度的最小样本容量,在此基础上估算了某隧洞工程的糙率值范围,结果对预估新建工程的输水能力、检验衬砌施工质量具有一定的借鉴意义。

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穆祥鹏(1979-),男,博士、教授级高级工程师、博导,研究方向为水力学及河流动力学、冰水力学,E-mail:
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李军强(1996-),男,硕士研究生,研究方向为水力学及河流动力学,E-mail:

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李军强(1996-),男,硕士研究生,研究方向为水力学及河流动力学,E-mail:

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李军强(1996-),男,硕士研究生,研究方向为水力学及河流动力学,E-mail:

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一种基于表面粗糙度分级抽样测量的隧洞糙率估算方法
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李军强 , 陈文学 , 穆祥鹏 , 张哲琦
水电能源科学 | 水利水电工程 2023,41(4): 135-138
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水电能源科学 | 水利水电工程 2023, 41(4): 135-138
一种基于表面粗糙度分级抽样测量的隧洞糙率估算方法
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李军强 , 陈文学, 穆祥鹏 , 张哲琦
作者信息
  • 中国水利水电科学研究院流域水循环模拟与调控国家重点实验室,北京 100038
  • 李军强(1996-),男,硕士研究生,研究方向为水力学及河流动力学,E-mail:

通讯作者:

穆祥鹏(1979-),男,博士、教授级高级工程师、博导,研究方向为水力学及河流动力学、冰水力学,E-mail:
A Method of Tunnel Roughness Estimation Based on Surface Roughness Hierarchical Sampling Measurement
Jun-qiang LI , Wen-xue CHEN, Xiang-peng MU , Zhe-qi ZHANG
Affiliations
  • State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
出版时间: 2023-04-25 doi: 10.20040/j.cnki.1000-7709.2023.20221493
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糙率是反映和影响工程输水能力的重要参数,可通过观测沿程水头损失的方法测算糙率值。但对于新建未通水工程,估算糙率值是一个难题。鉴于输水建筑物表面粗糙度是影响糙率值的最主要因素,提出一种基于分级抽样的表面粗糙度测量方法,并以某新建模筑钢筋混凝土衬砌隧洞为例,分析了该方法下表面粗糙度统计分布规律及使用该方法估算隧洞粗糙度的最小样本容量,在此基础上估算了某隧洞工程的糙率值范围,结果对预估新建工程的输水能力、检验衬砌施工质量具有一定的借鉴意义。

输水建筑物  /  糙率  /  水流阻力  /  壁面绝对粗糙度  /  对数正态分布

Roughness is an important parameter which reflects water transport capacity of water diversion project. The roughness value can be calculated by observing the frictional head loss. However, how to estimate the roughness is always a difficult problem in hydraulics for the new unworked water diversion project. The surface roughness of water conveyance buildings is a vital factor affecting the roughness value. So, this study proposed a surface roughness measurement method relies on hierarchical sampling. Taking a new in-situ reinforced concrete lining tunnel as an example, the statistical distribution of surface roughness and the minimum sample size of tunnel roughness estimation were analyzed. On this basis, the roughness value range of the tunnel project was estimated, which has a certain reference significance for predicting the water transport capacity of the new project and inspecting the construction quality of the lining.

water conveyance structure  /  Manning’s coefficient  /  flow resistance  /  surface roughness  /  lognormal distribution
李军强, 陈文学, 穆祥鹏, 张哲琦. 一种基于表面粗糙度分级抽样测量的隧洞糙率估算方法. 水电能源科学, 2023 , 41 (4) : 135 -138 . DOI: 10.20040/j.cnki.1000-7709.2023.20221493
Jun-qiang LI, Wen-xue CHEN, Xiang-peng MU, Zhe-qi ZHANG. A Method of Tunnel Roughness Estimation Based on Surface Roughness Hierarchical Sampling Measurement[J]. Water Resources and Power, 2023 , 41 (4) : 135 -138 . DOI: 10.20040/j.cnki.1000-7709.2023.20221493
  • 国家重点研发计划课题(2021YFC3200905)
  • 国家自然科学基金项目(U20A20316)
2023年第41卷第4期
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doi: 10.20040/j.cnki.1000-7709.2023.20221493
  • 接收时间:2022-07-20
  • 首发时间:2026-01-27
  • 出版时间:2023-04-25
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  • 收稿日期:2022-07-20
  • 修回日期:2022-10-19
基金
国家重点研发计划课题(2021YFC3200905)
国家自然科学基金项目(U20A20316)
作者信息
    中国水利水电科学研究院流域水循环模拟与调控国家重点实验室,北京 100038

通讯作者:

穆祥鹏(1979-),男,博士、教授级高级工程师、博导,研究方向为水力学及河流动力学、冰水力学,E-mail:
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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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