Article(id=1223202682169577679, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223202678788965355, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20230328, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1678032000000, receivedDateStr=2023-03-06, revisedDate=1679846400000, revisedDateStr=2023-03-27, acceptedDate=null, acceptedDateStr=null, onlineDate=1769563845436, onlineDateStr=2026-01-28, pubDate=1703433600000, pubDateStr=2023-12-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769563845436, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769563845436, creator=13701087609, updateTime=1769563845436, updator=13701087609, issue=Issue{id=1223202678788965355, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='12', pageStart='1', pageEnd='228', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769563844630, creator=13701087609, updateTime=1769563913308, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223202966899901286, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223202678788965355, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223202966899901287, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223202678788965355, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=147, endPage=151, ext={EN=ArticleExt(id=1223202687131439549, articleId=1223202682169577679, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Feasibility Analysis of Riverbed Protection Flexible Mattress Deformation Using Optical Fiber Sensing, columnId=1222925283779400191, journalTitle=Water Resources and Power, columnName=WATER CONSERVANCY AND HYDROPOWER ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

Flexible Mattress is the main beach guarding structure in the middle and lower reaches of the Yangtze River. The water flow scouring is likely to cause the deformation of the flexible mattress, affecting the guarding effect. Aiming at its deformation monitoring difficulties, this paper explores the feasibility of using optical fiber sensing to monitor the deformation of the flexible mattress through the indoor experiment. The results of the study show that at the initial stage of tensile deformation (less than 20 mm), the measured strain value deviates less from the actual value. When the tensile length is greater than 20 mm, the error rate of each measurement point is exponentially increasing, and the fixing effect of the optical fiber cable and the flexible mattress at the fixed point determines the monitoring accuracy of tensile deformation. The positioning accuracy of optical fiber sensing to measure bending deformation is 3 times fixed-points interval. For the concentrated stress areas (such as the edge of scour pits), positive strain is mainly generated. Optical fiber sensing has the feasibility of monitoring the tensile deformation of flexible beach protection structures. When applying this technology, it is necessary to consider the coupling of the sensing fiber and the deformation of the flexible structure, the destruction of sinking the mattress and the complexity of the construction process. The results can be reference for the research and development of monitoring and assessment technology of the in-service condition of the flexible mattress.

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软体排是长江中下游主要的洲滩守护结构,而水流冲刷作用易引起排体的变形,影响其守护效果。针对水下护底软体排变形监测的难点,通过开展室内试验,探讨光纤传感监测软体排的可行性。研究结果表明,排体拉伸变形的初始阶段(小于20 mm),应变实测值与理论值偏差较小;拉伸长度大于20 mm时,各测点的误差率呈指数型增长,定点处光缆与排体的固定效果决定了拉伸变形的监测精度;光纤传感对弯曲变形的定位精度为3倍的定点距离,集中受力区域(如冲刷坑边缘)会引起光纤的正应变;光纤传感具备监测柔性护滩结构拉伸变形的可行性,但应用该技术时,需考虑传感光纤与软体排变形的耦合性、沉排施工的破坏性及施工工序的复杂性等。该研究结果可为软体排服役状态监测及健康诊断技术的研发提供参考。

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左利钦(1980-),男,博士、正高级工程师,研究方向为航道工程,E-mail:
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魏祥龙(1990-),男,博士、助理研究员,研究方向为航道工程,E-mail:

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光纤传感监测护底软体排的可行性探讨
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魏祥龙 1a, 1b, 2 , 杨海亮 2 , 左利钦 2 , 陆永军 2 , 杨涵苑 2 , 袁赛瑜 1a, 1b
水电能源科学 | 水利水电工程 2023,41(12): 147-151
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水电能源科学 | 水利水电工程 2023, 41(12): 147-151
光纤传感监测护底软体排的可行性探讨
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魏祥龙1a, 1b, 2 , 杨海亮2, 左利钦2 , 陆永军2, 杨涵苑2, 袁赛瑜1a, 1b
作者信息
  • 1.a.河海大学水灾害防御全国重点实验室,江苏 南京 210098
  • 1.b.河海大学水利部水循环与水动力系统重点实验室,江苏 南京 210098
  • 2.南京水利科学研究院水灾害防御全国重点实验室,江苏 南京 210029
  • 魏祥龙(1990-),男,博士、助理研究员,研究方向为航道工程,E-mail:

通讯作者:

左利钦(1980-),男,博士、正高级工程师,研究方向为航道工程,E-mail:
Feasibility Analysis of Riverbed Protection Flexible Mattress Deformation Using Optical Fiber Sensing
Xiang-long WEI1a, 1b, 2 , Hai-liang YANG2, Li-qin ZUO2 , Yong-jun LU2, Han-yuan YANG2, Sai-yu YUAN1a, 1b
Affiliations
  • 1a.The National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing 210098, China
  • 1b.Key Laboratory of Hydrologic-Cycle and Hydrodynamic-System of Ministry of Water Resources, Hohai University, Nanjing 210098, China
  • 2.The National Key Laboratory of Water Disaster Prevention, Nanjing Hydraulic Research Institute, Nanjing 210029, China
出版时间: 2023-12-25 doi: 10.20040/j.cnki.1000-7709.2023.20230328
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软体排是长江中下游主要的洲滩守护结构,而水流冲刷作用易引起排体的变形,影响其守护效果。针对水下护底软体排变形监测的难点,通过开展室内试验,探讨光纤传感监测软体排的可行性。研究结果表明,排体拉伸变形的初始阶段(小于20 mm),应变实测值与理论值偏差较小;拉伸长度大于20 mm时,各测点的误差率呈指数型增长,定点处光缆与排体的固定效果决定了拉伸变形的监测精度;光纤传感对弯曲变形的定位精度为3倍的定点距离,集中受力区域(如冲刷坑边缘)会引起光纤的正应变;光纤传感具备监测柔性护滩结构拉伸变形的可行性,但应用该技术时,需考虑传感光纤与软体排变形的耦合性、沉排施工的破坏性及施工工序的复杂性等。该研究结果可为软体排服役状态监测及健康诊断技术的研发提供参考。

软体排  /  航道整治  /  变形监测  /  光纤传感

Flexible Mattress is the main beach guarding structure in the middle and lower reaches of the Yangtze River. The water flow scouring is likely to cause the deformation of the flexible mattress, affecting the guarding effect. Aiming at its deformation monitoring difficulties, this paper explores the feasibility of using optical fiber sensing to monitor the deformation of the flexible mattress through the indoor experiment. The results of the study show that at the initial stage of tensile deformation (less than 20 mm), the measured strain value deviates less from the actual value. When the tensile length is greater than 20 mm, the error rate of each measurement point is exponentially increasing, and the fixing effect of the optical fiber cable and the flexible mattress at the fixed point determines the monitoring accuracy of tensile deformation. The positioning accuracy of optical fiber sensing to measure bending deformation is 3 times fixed-points interval. For the concentrated stress areas (such as the edge of scour pits), positive strain is mainly generated. Optical fiber sensing has the feasibility of monitoring the tensile deformation of flexible beach protection structures. When applying this technology, it is necessary to consider the coupling of the sensing fiber and the deformation of the flexible structure, the destruction of sinking the mattress and the complexity of the construction process. The results can be reference for the research and development of monitoring and assessment technology of the in-service condition of the flexible mattress.

flexible mattress  /  waterway regulation  /  deformation monitoring  /  optical fiber sensing
魏祥龙, 杨海亮, 左利钦, 陆永军, 杨涵苑, 袁赛瑜. 光纤传感监测护底软体排的可行性探讨. 水电能源科学, 2023 , 41 (12) : 147 -151 . DOI: 10.20040/j.cnki.1000-7709.2023.20230328
Xiang-long WEI, Hai-liang YANG, Li-qin ZUO, Yong-jun LU, Han-yuan YANG, Sai-yu YUAN. Feasibility Analysis of Riverbed Protection Flexible Mattress Deformation Using Optical Fiber Sensing[J]. Water Resources and Power, 2023 , 41 (12) : 147 -151 . DOI: 10.20040/j.cnki.1000-7709.2023.20230328
  • 国家自然科学基金项目(52309085)
  • 江苏省自然科学基金项目(BK20230960)
  • 江苏省卓越博士后计划(2023ZB845)
  • 国家重点研发计划(2022YFC3202602)
  • 长江航道科技项目(Qs221001)
  • 江苏省水利科技项目(Qs222004)
2023年第41卷第12期
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doi: 10.20040/j.cnki.1000-7709.2023.20230328
  • 接收时间:2023-03-06
  • 首发时间:2026-01-28
  • 出版时间:2023-12-25
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  • 收稿日期:2023-03-06
  • 修回日期:2023-03-27
基金
国家自然科学基金项目(52309085)
江苏省自然科学基金项目(BK20230960)
江苏省卓越博士后计划(2023ZB845)
国家重点研发计划(2022YFC3202602)
长江航道科技项目(Qs221001)
江苏省水利科技项目(Qs222004)
作者信息
    1.a.河海大学水灾害防御全国重点实验室,江苏 南京 210098
    1.b.河海大学水利部水循环与水动力系统重点实验室,江苏 南京 210098
    2.南京水利科学研究院水灾害防御全国重点实验室,江苏 南京 210029

通讯作者:

左利钦(1980-),男,博士、正高级工程师,研究方向为航道工程,E-mail:
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https://castjournals.cast.org.cn/joweb/sdnykx/CN/10.20040/j.cnki.1000-7709.2023.20230328
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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
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占总种数比例
Percentage of
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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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