Article(id=1222963537723515180, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1222963536863678929, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20221781, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1661702400000, receivedDateStr=2022-08-29, revisedDate=1667232000000, revisedDateStr=2022-11-01, acceptedDate=null, acceptedDateStr=null, onlineDate=1769506828957, onlineDateStr=2026-01-27, pubDate=1682352000000, pubDateStr=2023-04-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769506828957, onlineIssueDateStr=2026-01-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769506828957, creator=13701087609, updateTime=1769506828957, updator=13701087609, issue=Issue{id=1222963536863678929, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='4', 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=1769506828752, creator=13701087609, updateTime=1769508076664, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1222968771057279321, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1222963536863678929, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1222968771057279322, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1222963536863678929, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=186, endPage=189, ext={EN=ArticleExt(id=1222963537937424686, articleId=1222963537723515180, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Experimental Study on Seepage Characteristics Evolution of Dolomite Single Fracture Under Water-Rock Interaction, columnId=1222925283779400191, journalTitle=Water Resources and Power, columnName=WATER CONSERVANCY AND HYDROPOWER ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

In order to study the seepage characteristics evolution of rock mass in the water level-fluctuating zone under condition of water-rock interaction, the dolomite in the reservoir area of Wudongde Hydropower Station was selected as the research object in this paper. The variation law of fracture seepage characteristics was obtained through the single fracture seepage test. With the help of SEM and 3D surface contour scanning technology, the variation law of fracture surface microstructure and surface morphological characteristics was studied, and the influence mechanism of fracture seepage characteristics evolution law was discussed. The results show that in the process of water-rock interaction, when the seepage pressure is constant, the seepage decreases exponentially with the increase of confining pressure; When the confining pressure is constant, the seepage increases linearly with the increase of seepage pressure; With the increase of water-rock interaction period, the seepage of fractures decreases rapidly at first and then slowly, and then increases slowly and tends to be stable. The water-rock interaction softens and dissolves the minerals at a certain depth of the fracture surface, and changes the micropore structure and surface morphological characteristics. Under action of confining pressure, the fracture surface is more closed. The further reduction of effective crack width is the main reason for the decrease of fracture seepage.

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为研究水—岩作用条件下水库消落带岩体渗流特性演化规律,以乌东德水电站库区白云岩为例,通过单裂隙渗流试验获取裂隙渗流特性变化规律,并借助SEM和三维表面轮廓扫描技术,研究了裂隙面微细观结构和表面形貌变化规律,探讨了裂隙渗流特性演化规律及影响机理。结果表明,在水—岩作用过程中,当渗透水压恒定时,渗流量随围压的增大呈指数关系递减;当围压恒定时,渗流量随渗透水压的增加呈线性关系递增;随水—岩作用周期的增加,裂隙渗流量呈先快后慢的减小,随后缓慢增加并趋于稳定。水—岩作用使得裂隙面一定深度的矿物软化溶解,改变了微细观孔隙结构和表面形貌特征,在围压作用下裂隙面闭合更加紧密,裂隙有效隙宽进一步减小是裂隙渗流量减小的主要原因。

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孙旭曙(1981-),男,博士、副教授、硕导,研究方向为水工岩石力学,E-mail:
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左小鹏(1994-),男,硕士研究生,研究方向为水工岩石力学,E-mail:

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水—岩作用下白云岩单裂隙渗流特性演化规律试验研究
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左小鹏 a, b , 孙旭曙 a, b , 郭晓萍 a, b , 张敏 a, b , 冯兴礼 a, b
水电能源科学 | 水利水电工程 2023,41(4): 186-189
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水电能源科学 | 水利水电工程 2023, 41(4): 186-189
水—岩作用下白云岩单裂隙渗流特性演化规律试验研究
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左小鹏a, b , 孙旭曙a, b , 郭晓萍a, b, 张敏a, b, 冯兴礼a, b
作者信息
  • a.三峡大学三峡库区地质灾害教育部重点实验室,湖北 宜昌 443002
  • b.三峡大学水利与环境学院,湖北 宜昌 443002
  • 左小鹏(1994-),男,硕士研究生,研究方向为水工岩石力学,E-mail:

通讯作者:

孙旭曙(1981-),男,博士、副教授、硕导,研究方向为水工岩石力学,E-mail:
Experimental Study on Seepage Characteristics Evolution of Dolomite Single Fracture Under Water-Rock Interaction
Xiao-peng ZUOa, b , Xu-shu SUNa, b , Xiao-ping GUOa, b, Min ZHANGa, b, Xing-li FENGa, b
Affiliations
  • a.Key Laboratory of Geological Hazards on Three Gorges Reservoir Area, Ministry of Education, China Three Gorges University, Yichang 443002, China
  • b.College of Water Conservancy and Environment, China Three Gorges University, Yichang 443002, China
出版时间: 2023-04-25 doi: 10.20040/j.cnki.1000-7709.2023.20221781
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为研究水—岩作用条件下水库消落带岩体渗流特性演化规律,以乌东德水电站库区白云岩为例,通过单裂隙渗流试验获取裂隙渗流特性变化规律,并借助SEM和三维表面轮廓扫描技术,研究了裂隙面微细观结构和表面形貌变化规律,探讨了裂隙渗流特性演化规律及影响机理。结果表明,在水—岩作用过程中,当渗透水压恒定时,渗流量随围压的增大呈指数关系递减;当围压恒定时,渗流量随渗透水压的增加呈线性关系递增;随水—岩作用周期的增加,裂隙渗流量呈先快后慢的减小,随后缓慢增加并趋于稳定。水—岩作用使得裂隙面一定深度的矿物软化溶解,改变了微细观孔隙结构和表面形貌特征,在围压作用下裂隙面闭合更加紧密,裂隙有效隙宽进一步减小是裂隙渗流量减小的主要原因。

水—岩作用  /  裂隙渗流  /  微细观结构  /  形貌特征

In order to study the seepage characteristics evolution of rock mass in the water level-fluctuating zone under condition of water-rock interaction, the dolomite in the reservoir area of Wudongde Hydropower Station was selected as the research object in this paper. The variation law of fracture seepage characteristics was obtained through the single fracture seepage test. With the help of SEM and 3D surface contour scanning technology, the variation law of fracture surface microstructure and surface morphological characteristics was studied, and the influence mechanism of fracture seepage characteristics evolution law was discussed. The results show that in the process of water-rock interaction, when the seepage pressure is constant, the seepage decreases exponentially with the increase of confining pressure; When the confining pressure is constant, the seepage increases linearly with the increase of seepage pressure; With the increase of water-rock interaction period, the seepage of fractures decreases rapidly at first and then slowly, and then increases slowly and tends to be stable. The water-rock interaction softens and dissolves the minerals at a certain depth of the fracture surface, and changes the micropore structure and surface morphological characteristics. Under action of confining pressure, the fracture surface is more closed. The further reduction of effective crack width is the main reason for the decrease of fracture seepage.

water-rock interaction  /  fracture seepage  /  microstructure  /  morphological characteristics
左小鹏, 孙旭曙, 郭晓萍, 张敏, 冯兴礼. 水—岩作用下白云岩单裂隙渗流特性演化规律试验研究. 水电能源科学, 2023 , 41 (4) : 186 -189 . DOI: 10.20040/j.cnki.1000-7709.2023.20221781
Xiao-peng ZUO, Xu-shu SUN, Xiao-ping GUO, Min ZHANG, Xing-li FENG. Experimental Study on Seepage Characteristics Evolution of Dolomite Single Fracture Under Water-Rock Interaction[J]. Water Resources and Power, 2023 , 41 (4) : 186 -189 . DOI: 10.20040/j.cnki.1000-7709.2023.20221781
  • 国家自然科学基金联合基金项目(U2034203)
  • 国家自然科学基金青年基金项目(52009067)
2023年第41卷第4期
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doi: 10.20040/j.cnki.1000-7709.2023.20221781
  • 接收时间:2022-08-29
  • 首发时间:2026-01-27
  • 出版时间:2023-04-25
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  • 收稿日期:2022-08-29
  • 修回日期:2022-11-01
基金
国家自然科学基金联合基金项目(U2034203)
国家自然科学基金青年基金项目(52009067)
作者信息
    a.三峡大学三峡库区地质灾害教育部重点实验室,湖北 宜昌 443002
    b.三峡大学水利与环境学院,湖北 宜昌 443002

通讯作者:

孙旭曙(1981-),男,博士、副教授、硕导,研究方向为水工岩石力学,E-mail:
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https://castjournals.cast.org.cn/joweb/sdnykx/CN/10.20040/j.cnki.1000-7709.2023.20221781
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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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