Article(id=1223196810634707933, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223196803663778281, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20221924, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1663257600000, receivedDateStr=2022-09-16, revisedDate=1665590400000, revisedDateStr=2022-10-13, acceptedDate=null, acceptedDateStr=null, onlineDate=1769562445553, onlineDateStr=2026-01-28, pubDate=1692892800000, pubDateStr=2023-08-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769562445553, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769562445553, creator=13701087609, updateTime=1769562445553, updator=13701087609, issue=Issue{id=1223196803663778281, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='8', pageStart='1', pageEnd='222', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769562443888, creator=13701087609, updateTime=1769563793740, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223202465391166440, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223196803663778281, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223202465391166441, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223196803663778281, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=117, endPage=120, ext={EN=ArticleExt(id=1223196811695865899, articleId=1223196810634707933, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Study on Deformation Mechanism of Retaining Wall at Foot of Large Earth-rock Dam, columnId=1222925280734335368, journalTitle=Water Resources and Power, columnName=DAM SAFETY AND MONITORING, runingTitle=null, highlight=null, articleAbstract=

The common deformation and failure mechanism of retaining wall at foot of earth-rock dam is mainly caused by insufficient bearing capacity of foundation, uneven settlement of foundation, temperature effect or insufficient anti-sliding stability. For a certain project, the retaining wall deformation characteristics are not consistent with the above causes after the drainage of the embankment foot of the earth-rock dam is changed to the retaining wall. The deformation is only visible at the expansion joints of the retaining wall, and the expansion joints are open, closed or misplaced. Through calculation and analysis, it is found that the expansion joint deformation is caused by the retaining wall horizontal displacement caused by the consolidation settlement of the dam, and the size of the deformation is related to the horizontal displacement difference between adjacent retaining walls. The larger the displacement difference is, the more serious the deformation is. At the same time, the horizontal displacement of retaining wall is related to the height of dam section, hydrogeologic conditions of dam foundation. Based on this, it is proposed that after the prism drainage of the downstream earth-rock dam is changed into gravity retaining wall, in addition to the design and calculation according to the standard requirements, the horizontal displacement difference between retaining walls should also be calculated, and the damage of retaining wall displacement and poor drainage to the downstream drainage system of the dam body should be considered. The research results have a good reference value for the correct analysis of deformation mechanism and anti-slip design of retaining wall at dam foot.

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常见土石坝坝脚挡墙变形破坏机理主要有地基承载力不足、地基不均匀沉降、温度效应或自身抗滑(倾)稳定性不足等。某项目土石坝坝脚棱体排水改为挡墙后,挡墙变形特征与常见起因均不相符,变形仅在挡墙伸缩缝处可见,伸缩缝呈张开、闭合或错位等变化。研究发现,伸缩缝变形是因坝体固结沉降导致挡墙产生水平位移,并与相邻挡墙间形成水平位移差有关,位移差越大变形越严重;同时挡墙水平位移大小与坝截面高度、坝基所处水文地质条件等相关。土石坝下游棱体排水改为重力式挡墙后,除按规范要求设计计算外,还应计算挡墙间水平位移差,并考虑挡墙位移、排水不畅对坝体下游排水系统的影响。研究结果对正确分析坝脚挡墙变形机制和挡墙抗滑设计具有较好的参考价值。

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邹振(1985-),男,硕士,研究方向为水利、岩土工程设计,E-mail:

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邹振(1985-),男,硕士,研究方向为水利、岩土工程设计,E-mail:

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邹振(1985-),男,硕士,研究方向为水利、岩土工程设计,E-mail:

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某大型土石坝坝脚挡墙变形机理分析
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邹振 1 , 梁禹 2, 3
水电能源科学 | 大坝安全与监测 2023,41(8): 117-120
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水电能源科学 | 大坝安全与监测 2023, 41(8): 117-120
某大型土石坝坝脚挡墙变形机理分析
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邹振1 , 梁禹2, 3
作者信息
  • 1.深圳市水务规划设计院股份有限公司,广东 深圳 518000
  • 2.中山大学·深圳航空航天学院,广东 深圳 518000
  • 3.中山大学土木工程学院,广东 珠海 519000
  • 邹振(1985-),男,硕士,研究方向为水利、岩土工程设计,E-mail:

Study on Deformation Mechanism of Retaining Wall at Foot of Large Earth-rock Dam
Zhen ZOU1 , Yu LIANG2, 3
Affiliations
  • 1.Shenzhen Water Planning & Design Institute Co., LTD., Shenzhen 518000, China
  • 2.Shenzhen Campus of Sun Yat-sen University, Shenzhen 518000, China
  • 3.School of Civil Engineering, Sun Yat-sen University, Zhuhai 519000, China
出版时间: 2023-08-25 doi: 10.20040/j.cnki.1000-7709.2023.20221924
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常见土石坝坝脚挡墙变形破坏机理主要有地基承载力不足、地基不均匀沉降、温度效应或自身抗滑(倾)稳定性不足等。某项目土石坝坝脚棱体排水改为挡墙后,挡墙变形特征与常见起因均不相符,变形仅在挡墙伸缩缝处可见,伸缩缝呈张开、闭合或错位等变化。研究发现,伸缩缝变形是因坝体固结沉降导致挡墙产生水平位移,并与相邻挡墙间形成水平位移差有关,位移差越大变形越严重;同时挡墙水平位移大小与坝截面高度、坝基所处水文地质条件等相关。土石坝下游棱体排水改为重力式挡墙后,除按规范要求设计计算外,还应计算挡墙间水平位移差,并考虑挡墙位移、排水不畅对坝体下游排水系统的影响。研究结果对正确分析坝脚挡墙变形机制和挡墙抗滑设计具有较好的参考价值。

棱体排水  /  坝脚挡墙  /  伸缩缝变形  /  固结沉降  /  水平位移差

The common deformation and failure mechanism of retaining wall at foot of earth-rock dam is mainly caused by insufficient bearing capacity of foundation, uneven settlement of foundation, temperature effect or insufficient anti-sliding stability. For a certain project, the retaining wall deformation characteristics are not consistent with the above causes after the drainage of the embankment foot of the earth-rock dam is changed to the retaining wall. The deformation is only visible at the expansion joints of the retaining wall, and the expansion joints are open, closed or misplaced. Through calculation and analysis, it is found that the expansion joint deformation is caused by the retaining wall horizontal displacement caused by the consolidation settlement of the dam, and the size of the deformation is related to the horizontal displacement difference between adjacent retaining walls. The larger the displacement difference is, the more serious the deformation is. At the same time, the horizontal displacement of retaining wall is related to the height of dam section, hydrogeologic conditions of dam foundation. Based on this, it is proposed that after the prism drainage of the downstream earth-rock dam is changed into gravity retaining wall, in addition to the design and calculation according to the standard requirements, the horizontal displacement difference between retaining walls should also be calculated, and the damage of retaining wall displacement and poor drainage to the downstream drainage system of the dam body should be considered. The research results have a good reference value for the correct analysis of deformation mechanism and anti-slip design of retaining wall at dam foot.

prism drainage  /  toe retaining wall  /  expansion joint deformation  /  consolidation settlement  /  horizontal displacement difference
邹振, 梁禹. 某大型土石坝坝脚挡墙变形机理分析. 水电能源科学, 2023 , 41 (8) : 117 -120 . DOI: 10.20040/j.cnki.1000-7709.2023.20221924
Zhen ZOU, Yu LIANG. Study on Deformation Mechanism of Retaining Wall at Foot of Large Earth-rock Dam[J]. Water Resources and Power, 2023 , 41 (8) : 117 -120 . DOI: 10.20040/j.cnki.1000-7709.2023.20221924
  • 深圳市自然科学基金可持续发展科技专项(KCXFZ20201221173207020)
2023年第41卷第8期
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doi: 10.20040/j.cnki.1000-7709.2023.20221924
  • 接收时间:2022-09-16
  • 首发时间:2026-01-28
  • 出版时间:2023-08-25
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  • 收稿日期:2022-09-16
  • 修回日期:2022-10-13
基金
深圳市自然科学基金可持续发展科技专项(KCXFZ20201221173207020)
作者信息
    1.深圳市水务规划设计院股份有限公司,广东 深圳 518000
    2.中山大学·深圳航空航天学院,广东 深圳 518000
    3.中山大学土木工程学院,广东 珠海 519000
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2种不同金属材料的力学参数

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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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