Article(id=1223204290760659015, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223204286050452333, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20221436, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1657641600000, receivedDateStr=2022-07-13, revisedDate=1661616000000, revisedDateStr=2022-08-28, acceptedDate=null, acceptedDateStr=null, onlineDate=1769564228954, onlineDateStr=2026-01-28, pubDate=1684944000000, pubDateStr=2023-05-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769564228954, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769564228954, creator=13701087609, updateTime=1769564228954, updator=13701087609, issue=Issue{id=1223204286050452333, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='5', 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=1769564227831, creator=13701087609, updateTime=1769567742010, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223219026013323264, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223204286050452333, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223219026013323265, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223204286050452333, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=135, endPage=138, ext={EN=ArticleExt(id=1223204291918287052, articleId=1223204290760659015, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Model Test Study on Deformation Mechanism of Shiliushubao Landslide Caused by Fluctuation of Reservoir Water Level, columnId=1222925283779400191, journalTitle=Water Resources and Power, columnName=WATER CONSERVANCY AND HYDROPOWER ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

The Shiliushubao landslide is one of the giant landslides with complex structure in the Three Gorges Reservoir area. Since the dam was filled with water, the landslide has shown signs of revival, causing loss of life and property to several people around. In order to study the deformation failure mode and response mechanism of Shiliushubao landslide under the fluctuation of reservoir water level, the large-scale physical model test was used to accurately control the fluctuation condition of the experimental reservoir water level, and the displacement sensor, earth pressure sensor and pore water pressure were embedded in the slope. The sensor was used to analyze the experimental phenomenon. The results show that the influence of the reservoir water level fluctuation is mainly concentrated at the foot of the front edge of the landslide, and the rapid decline of the reservoir water level has a significantly greater effect on the landslide deformation than the increase of the reservoir water level; The mechanical response of the slope body has a hysteresis, and the effective soil stress increases when the reservoir water rises, the anti-sliding force of the sliding belt increases, and with the increase of the rising rate, the penetration force directed into the slope is larger, which is conducive to the stability of the landslide; Under the condition of the reservoir water level, the deformation and failure mode of the Shiliushubao landslide is sorted as: original slope → Erosion and erosion expansion at the foot of the slope → formation and expansion of the fissure at the foot of the slope → formation of the fissure on the slope surface → local slump, which is a hydrodynamic pressure landslide. The test revealed the deformation mechanism under the condition of reservoir water level, and provided a reference for the study of similar landslides.

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石榴树包滑坡是三峡库区结构复杂的巨型滑坡之一,自大坝蓄水以来,滑坡出现复活迹象,对周边人民的生命财产造成威胁。为研究石榴树包滑坡在库水位涨落下的变形破坏模式和响应机制,通过大型物理模型试验,精确控制试验库水位涨落条件,在边坡内埋设位移传感器、土压力传感器及孔隙水压力传感器来分析试验现象。结果表明,库水位涨落影响主要集中在滑坡前缘坡脚处,库水蓄水产生悬浮减重作用,会削弱部分滑体重力,从而使得滑坡稳定性下降;坡体内力响应具有滞后性,库水上涨时土体有效应力增加,滑带抗滑力增大,且随着上涨速率增大而形成指向坡内的渗透力越大,有利于滑坡稳定;库水位条件下石榴树包滑坡变形破坏模式为原始边坡→坡脚侵蚀及侵蚀扩展→坡脚裂隙形成及扩展→坡面裂隙形成→局部滑塌,为动水压力型滑坡。试验揭示了库水位条件下的变形机理,为研究类似滑坡提供了参考。

, correspAuthors=null, authorNote=null, correspAuthorsNote=
卢应发(1964-),男,教授、博导,研究方向为岩土力学理论及应用,E-mail:
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陈露军(1997-),男,硕士研究生,研究方向为岩土力学理论及应用,E-mail:

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陈露军(1997-),男,硕士研究生,研究方向为岩土力学理论及应用,E-mail:

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陈露军(1997-),男,硕士研究生,研究方向为岩土力学理论及应用,E-mail:

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库水位涨落对石榴树包滑坡变形机理的模型试验研究
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陈露军 , 卢应发 , 孙文庆
水电能源科学 | 水利水电工程 2023,41(5): 135-138
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水电能源科学 | 水利水电工程 2023, 41(5): 135-138
库水位涨落对石榴树包滑坡变形机理的模型试验研究
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陈露军 , 卢应发 , 孙文庆
作者信息
  • 湖北工业大学土木建筑与环境学院,湖北 武汉 430068
  • 陈露军(1997-),男,硕士研究生,研究方向为岩土力学理论及应用,E-mail:

通讯作者:

卢应发(1964-),男,教授、博导,研究方向为岩土力学理论及应用,E-mail:
Model Test Study on Deformation Mechanism of Shiliushubao Landslide Caused by Fluctuation of Reservoir Water Level
Lu-jun CHEN , Ying-fa LU , Wen-qing SUN
Affiliations
  • School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, China
出版时间: 2023-05-25 doi: 10.20040/j.cnki.1000-7709.2023.20221436
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石榴树包滑坡是三峡库区结构复杂的巨型滑坡之一,自大坝蓄水以来,滑坡出现复活迹象,对周边人民的生命财产造成威胁。为研究石榴树包滑坡在库水位涨落下的变形破坏模式和响应机制,通过大型物理模型试验,精确控制试验库水位涨落条件,在边坡内埋设位移传感器、土压力传感器及孔隙水压力传感器来分析试验现象。结果表明,库水位涨落影响主要集中在滑坡前缘坡脚处,库水蓄水产生悬浮减重作用,会削弱部分滑体重力,从而使得滑坡稳定性下降;坡体内力响应具有滞后性,库水上涨时土体有效应力增加,滑带抗滑力增大,且随着上涨速率增大而形成指向坡内的渗透力越大,有利于滑坡稳定;库水位条件下石榴树包滑坡变形破坏模式为原始边坡→坡脚侵蚀及侵蚀扩展→坡脚裂隙形成及扩展→坡面裂隙形成→局部滑塌,为动水压力型滑坡。试验揭示了库水位条件下的变形机理,为研究类似滑坡提供了参考。

石榴树包滑坡  /  库水位涨落  /  模型试验  /  变形机理  /  破坏模式

The Shiliushubao landslide is one of the giant landslides with complex structure in the Three Gorges Reservoir area. Since the dam was filled with water, the landslide has shown signs of revival, causing loss of life and property to several people around. In order to study the deformation failure mode and response mechanism of Shiliushubao landslide under the fluctuation of reservoir water level, the large-scale physical model test was used to accurately control the fluctuation condition of the experimental reservoir water level, and the displacement sensor, earth pressure sensor and pore water pressure were embedded in the slope. The sensor was used to analyze the experimental phenomenon. The results show that the influence of the reservoir water level fluctuation is mainly concentrated at the foot of the front edge of the landslide, and the rapid decline of the reservoir water level has a significantly greater effect on the landslide deformation than the increase of the reservoir water level; The mechanical response of the slope body has a hysteresis, and the effective soil stress increases when the reservoir water rises, the anti-sliding force of the sliding belt increases, and with the increase of the rising rate, the penetration force directed into the slope is larger, which is conducive to the stability of the landslide; Under the condition of the reservoir water level, the deformation and failure mode of the Shiliushubao landslide is sorted as: original slope → Erosion and erosion expansion at the foot of the slope → formation and expansion of the fissure at the foot of the slope → formation of the fissure on the slope surface → local slump, which is a hydrodynamic pressure landslide. The test revealed the deformation mechanism under the condition of reservoir water level, and provided a reference for the study of similar landslides.

Shiliushubao landslide  /  reservoir water level fluctuation  /  model experiment  /  deformation mechanism  /  failure mode
陈露军, 卢应发, 孙文庆. 库水位涨落对石榴树包滑坡变形机理的模型试验研究. 水电能源科学, 2023 , 41 (5) : 135 -138 . DOI: 10.20040/j.cnki.1000-7709.2023.20221436
Lu-jun CHEN, Ying-fa LU, Wen-qing SUN. Model Test Study on Deformation Mechanism of Shiliushubao Landslide Caused by Fluctuation of Reservoir Water Level[J]. Water Resources and Power, 2023 , 41 (5) : 135 -138 . DOI: 10.20040/j.cnki.1000-7709.2023.20221436
  • 国家自然科学基金项目(41641027; 42071264)
  • 三峡后续工作地质灾害防治项目(0001212015CC60005)
2023年第41卷第5期
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doi: 10.20040/j.cnki.1000-7709.2023.20221436
  • 接收时间:2022-07-13
  • 首发时间:2026-01-28
  • 出版时间:2023-05-25
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出版历史
  • 收稿日期:2022-07-13
  • 修回日期:2022-08-28
基金
国家自然科学基金项目(41641027; 42071264)
三峡后续工作地质灾害防治项目(0001212015CC60005)
作者信息
    湖北工业大学土木建筑与环境学院,湖北 武汉 430068

通讯作者:

卢应发(1964-),男,教授、博导,研究方向为岩土力学理论及应用,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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