Article(id=1223201254885671030, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223201250133524577, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20221780, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1659024000000, receivedDateStr=2022-07-29, revisedDate=1663516800000, revisedDateStr=2022-09-19, acceptedDate=null, acceptedDateStr=null, onlineDate=1769563505145, onlineDateStr=2026-01-28, pubDate=1690214400000, pubDateStr=2023-07-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769563505145, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769563505145, creator=13701087609, updateTime=1769563505145, updator=13701087609, issue=Issue{id=1223201250133524577, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='7', 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=1769563504012, creator=13701087609, updateTime=1769563583713, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223201584469885927, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223201250133524577, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223201584469885928, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223201250133524577, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=110, endPage=112, ext={EN=ArticleExt(id=1223201255133134974, articleId=1223201254885671030, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Influence Analysis of Rock Socketed Depth of the Core Wall Base on the Base Stress of Asphalt Concrete Core Rockfill Dam, columnId=1222925280734335368, journalTitle=Water Resources and Power, columnName=DAM SAFETY AND MONITORING, runingTitle=null, highlight=null, articleAbstract=

As a special structure connecting core wall and foundation of asphalt concrete rockfill dam, its stress state is very important to the stability of the dam. Taking the asphalt concrete core rockfill dam of Chongqing Miaotang under construction as an example, the maximum section of the dam was selected to establish a two-dimensional model for finite element calculation, and the stress distribution of the foundation under three different forms of unembedded bedrock, semi-embedded bedrock and fully embedded bedrock was discussed. The results show that there is a strong correlation between the embedment depth of the base in the bedrock and the tensile stress inside the base. During the period of water storage, the difference of tensile stress between different arrangement forms can reach up to 334%. Meanwhile, as the corridor was affected by the larger tensile stress inside the base during the period of water storage, it was easy to cause tensile damage. By changing the position of the corridor in the base, the tensile stress around the corridor can be reduced to avoid the damage of the corridor. After the location of the corridor is changed, the surrounding tensile stress can be reduced by up to 87% compared with the original.

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沥青混凝土心墙堆石坝基座作为连接心墙与坝基的特殊结构,其受力状态对大坝的稳定至关重要。以在建的重庆庙堂沥青混凝土心墙堆石坝为例,选取其最大断面,建立二维模型进行有限元计算,分析探讨了基座在未嵌入基岩、半嵌入基岩、全嵌入基岩三种不同布置形式下的应力分布情况。结果表明,基座在基岩中的嵌入深度与基座内部的拉应力之间关联性较强。在蓄水期,不同布置形式之间拉应力相差最大可达334%,同时,由于廊道在蓄水期时受基座内部较大拉应力的影响,容易造成拉裂破坏,通过改变廊道在基座中的位置,降低廊道周围的拉应力,避免廊道产生破坏。廊道位置改变后,周围拉应力相比于原来下降幅度最大可达87%。

, correspAuthors=null, authorNote=null, correspAuthorsNote=
王俊杰(1973-),男,博士、教授、博导,研究方向为岩土工程,E-mail:
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罗澳(1999-),男,硕士研究生,研究方向为岩土工程,E-mail:

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罗澳(1999-),男,硕士研究生,研究方向为岩土工程,E-mail:

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罗澳(1999-),男,硕士研究生,研究方向为岩土工程,E-mail:

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庙堂沥青混凝土心墙堆石坝心墙基座嵌岩深度对基座应力的影响分析
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罗澳 a , 王俊杰 b , 黄诗渊 b , 李玉桥 a
水电能源科学 | 大坝安全与监测 2023,41(7): 110-112
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水电能源科学 | 大坝安全与监测 2023, 41(7): 110-112
庙堂沥青混凝土心墙堆石坝心墙基座嵌岩深度对基座应力的影响分析
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罗澳a , 王俊杰b , 黄诗渊b, 李玉桥a
作者信息
  • a.重庆交通大学河海学院,重庆 400074
  • b.重庆交通大学材料科学与工程学院,重庆 400074
  • 罗澳(1999-),男,硕士研究生,研究方向为岩土工程,E-mail:

通讯作者:

王俊杰(1973-),男,博士、教授、博导,研究方向为岩土工程,E-mail:
Influence Analysis of Rock Socketed Depth of the Core Wall Base on the Base Stress of Asphalt Concrete Core Rockfill Dam
Ao LUOa , Jun-jie WANGb , Shi-yuan HUANGb, Yu-qiao LIa
Affiliations
  • a.College of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing 400074, China
  • b.College of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing 400074, China
出版时间: 2023-07-25 doi: 10.20040/j.cnki.1000-7709.2023.20221780
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沥青混凝土心墙堆石坝基座作为连接心墙与坝基的特殊结构,其受力状态对大坝的稳定至关重要。以在建的重庆庙堂沥青混凝土心墙堆石坝为例,选取其最大断面,建立二维模型进行有限元计算,分析探讨了基座在未嵌入基岩、半嵌入基岩、全嵌入基岩三种不同布置形式下的应力分布情况。结果表明,基座在基岩中的嵌入深度与基座内部的拉应力之间关联性较强。在蓄水期,不同布置形式之间拉应力相差最大可达334%,同时,由于廊道在蓄水期时受基座内部较大拉应力的影响,容易造成拉裂破坏,通过改变廊道在基座中的位置,降低廊道周围的拉应力,避免廊道产生破坏。廊道位置改变后,周围拉应力相比于原来下降幅度最大可达87%。

沥青混凝土心墙堆石坝  /  混凝土基座  /  嵌岩深度  /  应力状态

As a special structure connecting core wall and foundation of asphalt concrete rockfill dam, its stress state is very important to the stability of the dam. Taking the asphalt concrete core rockfill dam of Chongqing Miaotang under construction as an example, the maximum section of the dam was selected to establish a two-dimensional model for finite element calculation, and the stress distribution of the foundation under three different forms of unembedded bedrock, semi-embedded bedrock and fully embedded bedrock was discussed. The results show that there is a strong correlation between the embedment depth of the base in the bedrock and the tensile stress inside the base. During the period of water storage, the difference of tensile stress between different arrangement forms can reach up to 334%. Meanwhile, as the corridor was affected by the larger tensile stress inside the base during the period of water storage, it was easy to cause tensile damage. By changing the position of the corridor in the base, the tensile stress around the corridor can be reduced to avoid the damage of the corridor. After the location of the corridor is changed, the surrounding tensile stress can be reduced by up to 87% compared with the original.

asphalt concrete core rockfill dam  /  concrete base  /  rock socketed depth  /  stress state
罗澳, 王俊杰, 黄诗渊, 李玉桥. 庙堂沥青混凝土心墙堆石坝心墙基座嵌岩深度对基座应力的影响分析. 水电能源科学, 2023 , 41 (7) : 110 -112 . DOI: 10.20040/j.cnki.1000-7709.2023.20221780
Ao LUO, Jun-jie WANG, Shi-yuan HUANG, Yu-qiao LI. Influence Analysis of Rock Socketed Depth of the Core Wall Base on the Base Stress of Asphalt Concrete Core Rockfill Dam[J]. Water Resources and Power, 2023 , 41 (7) : 110 -112 . DOI: 10.20040/j.cnki.1000-7709.2023.20221780
  • 重庆市教委科学技术研究计划重点项目(KJZD-K202000705)
  • 水利部堤防安全与病害防治工程技术研究中心开放课题基金资助项目(LSDP202101)
  • 国家自然科学基金项目(52109113)
  • 重庆市自然科学基金面上项目(cstc2021jcyj-msxmX1114)
2023年第41卷第7期
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doi: 10.20040/j.cnki.1000-7709.2023.20221780
  • 接收时间:2022-07-29
  • 首发时间:2026-01-28
  • 出版时间:2023-07-25
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出版历史
  • 收稿日期:2022-07-29
  • 修回日期:2022-09-19
基金
重庆市教委科学技术研究计划重点项目(KJZD-K202000705)
水利部堤防安全与病害防治工程技术研究中心开放课题基金资助项目(LSDP202101)
国家自然科学基金项目(52109113)
重庆市自然科学基金面上项目(cstc2021jcyj-msxmX1114)
作者信息
    a.重庆交通大学河海学院,重庆 400074
    b.重庆交通大学材料科学与工程学院,重庆 400074

通讯作者:

王俊杰(1973-),男,博士、教授、博导,研究方向为岩土工程,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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