Article(id=1223201264821982104, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223201250133524577, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20230018, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1672848000000, receivedDateStr=2023-01-05, revisedDate=1675180800000, revisedDateStr=2023-02-01, acceptedDate=null, acceptedDateStr=null, onlineDate=1769563507513, onlineDateStr=2026-01-28, pubDate=1690214400000, pubDateStr=2023-07-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769563507513, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769563507513, creator=13701087609, updateTime=1769563507513, 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=158, endPage=161, ext={EN=ArticleExt(id=1223201265186886584, articleId=1223201264821982104, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Numerical Simulation and Monitoring Analysis of Rock Anchor Beam With Incomplete Support in Underground Powerhouse, columnId=1222925283779400191, journalTitle=Water Resources and Power, columnName=WATER CONSERVANCY AND HYDROPOWER ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

Affected by the construction progress and other objective factors, the rock anchor beam may undergo loading with incomplete support, which seriously threatens the structural stability. In this paper, the rock anchored beam of a large hydropower station was taken as the research object. The three-dimensional nonlinear finite element simulation method was used to simulate the excavation of the main powerhouse and the filling of the rock anchored beam according to the actual excavation sequence. The continuous medium cementation element was introduced to simulate the weak contact between the beam concrete and the rock mass wall seat. The simulation results show that the load condition has a little impact on the stress and deformation of surrounding rocks, the initial support structure, and the rock anchor beam. The cementation surface between the surrounding rock and the rock anchor beam has a tendency to open, but it does not behavior obvious opening. The monitoring data such as the stress of the rock anchor beam and the deformation of the joint between the anchor beam and the rock wall remain basically unchanged, and no abnormal data are found, proving that the working state of the anchor beam is normal.

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受施工现场实际情况及施工进度等客观因素影响,岩锚梁可能发生支护不完备情况下桥机试验的特殊工况,严重威胁结构稳定性。为此,以某大型水电站地下厂房岩锚吊车梁为例,针对支护不完备情况,采用三维非线性有限元模拟方法,按照实际的开挖模拟顺序模拟主厂房的开挖及岩锚梁的填筑,引入连续介质胶结单元模拟梁身混凝土与岩体壁座之间存在的软弱接触面。计算结果表明,在现有的初期支护措施下,进行桥机试验对围岩、备用机组初期支护结构、吊车梁及锚杆的应力应变状态均不会产生大的影响,围岩和吊车梁之间的胶结面有张开的趋势,但不会产生明显的张开量。现场监测结果显示,在桥机试验前后,岩锚梁预应力锚杆应力、岩锚梁与岩壁接缝变形等监测数据基本保持不变,未发现异常变化情况,说明岩锚梁工作状态正常。

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宋志宇(1979-),男,博士、正高级工程师,研究方向为水工结构数值仿真模拟,E-mail:

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宋志宇(1979-),男,博士、正高级工程师,研究方向为水工结构数值仿真模拟,E-mail:

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宋志宇(1979-),男,博士、正高级工程师,研究方向为水工结构数值仿真模拟,E-mail:

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地下厂房岩锚梁支护不完备情况下桥机试验数值仿真与监测分析
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宋志宇 1, 2 , 董莉莉 1, 2 , 金俊超 1, 2 , 白正雄 1, 2
水电能源科学 | 水利水电工程 2023,41(7): 158-161
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水电能源科学 | 水利水电工程 2023, 41(7): 158-161
地下厂房岩锚梁支护不完备情况下桥机试验数值仿真与监测分析
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宋志宇1, 2 , 董莉莉1, 2, 金俊超1, 2, 白正雄1, 2
作者信息
  • 1.黄河勘测规划设计研究院有限公司,河南 郑州 450003
  • 2.水利部黄河流域水治理与水安全重点实验室(筹),河南 郑州 450003
  • 宋志宇(1979-),男,博士、正高级工程师,研究方向为水工结构数值仿真模拟,E-mail:

Numerical Simulation and Monitoring Analysis of Rock Anchor Beam With Incomplete Support in Underground Powerhouse
Zhi-yu SONG1, 2 , Li-li DONG1, 2, Jun-chao JIN1, 2, Zheng-xiong BAI1, 2
Affiliations
  • 1.Yellow River Engineering Consulting Co. Ltd., Zhengzhou 450003, China
  • 2.Key Laboratory of Water Management and Water Security for Yellow River Basin, Ministry of Water Resources (Under Construction), Zhengzhou 450003, China
出版时间: 2023-07-25 doi: 10.20040/j.cnki.1000-7709.2023.20230018
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受施工现场实际情况及施工进度等客观因素影响,岩锚梁可能发生支护不完备情况下桥机试验的特殊工况,严重威胁结构稳定性。为此,以某大型水电站地下厂房岩锚吊车梁为例,针对支护不完备情况,采用三维非线性有限元模拟方法,按照实际的开挖模拟顺序模拟主厂房的开挖及岩锚梁的填筑,引入连续介质胶结单元模拟梁身混凝土与岩体壁座之间存在的软弱接触面。计算结果表明,在现有的初期支护措施下,进行桥机试验对围岩、备用机组初期支护结构、吊车梁及锚杆的应力应变状态均不会产生大的影响,围岩和吊车梁之间的胶结面有张开的趋势,但不会产生明显的张开量。现场监测结果显示,在桥机试验前后,岩锚梁预应力锚杆应力、岩锚梁与岩壁接缝变形等监测数据基本保持不变,未发现异常变化情况,说明岩锚梁工作状态正常。

岩锚吊车梁  /  支护不完备  /  桥机试验  /  数值仿真  /  现场监测

Affected by the construction progress and other objective factors, the rock anchor beam may undergo loading with incomplete support, which seriously threatens the structural stability. In this paper, the rock anchored beam of a large hydropower station was taken as the research object. The three-dimensional nonlinear finite element simulation method was used to simulate the excavation of the main powerhouse and the filling of the rock anchored beam according to the actual excavation sequence. The continuous medium cementation element was introduced to simulate the weak contact between the beam concrete and the rock mass wall seat. The simulation results show that the load condition has a little impact on the stress and deformation of surrounding rocks, the initial support structure, and the rock anchor beam. The cementation surface between the surrounding rock and the rock anchor beam has a tendency to open, but it does not behavior obvious opening. The monitoring data such as the stress of the rock anchor beam and the deformation of the joint between the anchor beam and the rock wall remain basically unchanged, and no abnormal data are found, proving that the working state of the anchor beam is normal.

crane beam anchored in rock  /  incomplete support  /  in-situ load test  /  numerical simulation  /  monitoring analysis
宋志宇, 董莉莉, 金俊超, 白正雄. 地下厂房岩锚梁支护不完备情况下桥机试验数值仿真与监测分析. 水电能源科学, 2023 , 41 (7) : 158 -161 . DOI: 10.20040/j.cnki.1000-7709.2023.20230018
Zhi-yu SONG, Li-li DONG, Jun-chao JIN, Zheng-xiong BAI. Numerical Simulation and Monitoring Analysis of Rock Anchor Beam With Incomplete Support in Underground Powerhouse[J]. Water Resources and Power, 2023 , 41 (7) : 158 -161 . DOI: 10.20040/j.cnki.1000-7709.2023.20230018
  • 中国博士后科学基金(2022M721299)
  • 河南省重点研发与推广专项(232102320339)
2023年第41卷第7期
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文章信息
doi: 10.20040/j.cnki.1000-7709.2023.20230018
  • 接收时间:2023-01-05
  • 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:2023-01-05
  • 修回日期:2023-02-01
基金
中国博士后科学基金(2022M721299)
河南省重点研发与推广专项(232102320339)
作者信息
    1.黄河勘测规划设计研究院有限公司,河南 郑州 450003
    2.水利部黄河流域水治理与水安全重点实验室(筹),河南 郑州 450003
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https://castjournals.cast.org.cn/joweb/sdnykx/CN/10.20040/j.cnki.1000-7709.2023.20230018
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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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