Article(id=1222963538499461433, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1222963536863678929, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20221256, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1655308800000, receivedDateStr=2022-06-16, revisedDate=1657555200000, revisedDateStr=2022-07-12, acceptedDate=null, acceptedDateStr=null, onlineDate=1769506829142, onlineDateStr=2026-01-27, pubDate=1682352000000, pubDateStr=2023-04-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769506829142, onlineIssueDateStr=2026-01-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769506829142, creator=13701087609, updateTime=1769506829142, 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=176, endPage=180, ext={EN=ArticleExt(id=1222963538721759553, articleId=1222963538499461433, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Effect of Single Fissure Distribution on Mechanical Properties and Propagation Failure of Composite Rock Samples, columnId=1222925283779400191, journalTitle=Water Resources and Power, columnName=WATER CONSERVANCY AND HYDROPOWER ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

Fissure distribution has a significant effect on mechanical properties and damage failure of layered rock mass with complex fissures. Based on the uniaxial compression test and DIC technique, the influence of fissure location and fissure angle on the mechanical properties and failure of the composite fissure rock sample composed of sandstone-like and martial-like rocks was analyzed. The results show that the mechanical properties of composite fissure rock samples increase with the change of fissure location from sandstone, interface and marble and the increase of fissure angle. Influence of fissure location on rock sample failure: When the fissure is in marble, the initial crack is easy to be the far-field crack in sandstone, and the surface spalling occurs in both sandstone and marble, but the failure is more obvious in sandstone, is prone to "H-shaped failure". When the fissure is at the interface and sandstone, it is easy to produce wing crack and anti-wing crack at the crack tip of sandstone. Exfoliation occurs only in sandstone, "1γ shape failure" and "y shape failure" are easy to occur, respectively. At the same time, the stress-strain levels σ and ε corresponding to the initial crack generation at the same fissure angle increase with the change of fissure position from sandstone, sandstone to marble and marble. Influence of fissure angle on rock sample failure: When α=90°, the tip is not easy to crack, and when α=45°, the tip is easy to crack. When the fissure location is the same, the σ and ε of α=90° are the largest, while the σ and ε of α=0° and α=45°are the smallest. "H-shaped failure" occurs when α=0° and "y-shaped failure" occurs when α=90°. The research results are instructive for practical engineering construction and design.

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在富存复杂裂隙的层理岩体中,裂隙分布对其力学性质及损伤破坏具有显著影响。以由类砂岩和类大理岩组成的复合裂隙岩样为例,采用单轴压缩试验和DIC技术,分析裂隙位置和裂隙倾角对岩样力学性质和破坏的影响。结果表明,岩样的力学性质随裂隙位置依次从大理岩、交界面到砂岩的改变及裂隙倾角的增加呈增加趋势。裂隙位置对岩样破坏影响为当裂隙在大理岩中时,初始裂纹易为砂岩中的远场裂纹,表面剥落在砂岩和大理岩中均有发生,但砂岩处破坏更明显,易发生“H形破坏”;当裂隙在交界面和砂岩时,易为砂岩处裂尖产生的翼裂纹、反翼裂纹,剥落现象只发生在砂岩处,分别易发生“1γ形破坏”和“y形破坏”;同时,初始裂纹产生对应的应力应变水平σ、ε随裂隙位置由砂岩、交界面到大理岩的改变依次提高。裂隙倾角对岩样破坏影响为α=90°时裂尖不易起裂,α=45°时裂尖易起裂;在相同裂隙倾角下,裂隙位置相同时α=90°的σ、ε最大,α=0°、45°时最小;α=0°时均发生“H形破坏”,α=90°时均发生“y形破坏”。研究结果对实际工程建设和设计具有指导性意义。

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肖桃李(1978-),男,博士、教授,研究方向为深部岩体围岩稳定性,E-mail:
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章德超(1999-),男,硕士研究生,研究方向为岩体压裂技术,E-mail:

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章德超(1999-),男,硕士研究生,研究方向为岩体压裂技术,E-mail:

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章德超(1999-),男,硕士研究生,研究方向为岩体压裂技术,E-mail:

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单裂隙分布对复合岩样力学性质和扩展破坏的影响
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章德超 1 , 肖桃李 1 , 张大飞 2 , 折海成 1
水电能源科学 | 水利水电工程 2023,41(4): 176-180
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水电能源科学 | 水利水电工程 2023, 41(4): 176-180
单裂隙分布对复合岩样力学性质和扩展破坏的影响
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章德超1 , 肖桃李1 , 张大飞2, 折海成1
作者信息
  • 1.长江大学城市建设学院,湖北 荆州 434000
  • 2.成都鼎佳能源技术有限公司,四川 成都 610051
  • 章德超(1999-),男,硕士研究生,研究方向为岩体压裂技术,E-mail:

通讯作者:

肖桃李(1978-),男,博士、教授,研究方向为深部岩体围岩稳定性,E-mail:
Effect of Single Fissure Distribution on Mechanical Properties and Propagation Failure of Composite Rock Samples
De-chao ZHANG1 , Tao-li XIAO1 , Da-fei ZHANG2, Hai-cheng SHE1
Affiliations
  • 1.School of Urban Construction, Yangtze University, Jingzhou 434000, China
  • 2.Chengdu Dingjia Energy Technology Co., Ltd., Chengdu 610051, China
出版时间: 2023-04-25 doi: 10.20040/j.cnki.1000-7709.2023.20221256
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在富存复杂裂隙的层理岩体中,裂隙分布对其力学性质及损伤破坏具有显著影响。以由类砂岩和类大理岩组成的复合裂隙岩样为例,采用单轴压缩试验和DIC技术,分析裂隙位置和裂隙倾角对岩样力学性质和破坏的影响。结果表明,岩样的力学性质随裂隙位置依次从大理岩、交界面到砂岩的改变及裂隙倾角的增加呈增加趋势。裂隙位置对岩样破坏影响为当裂隙在大理岩中时,初始裂纹易为砂岩中的远场裂纹,表面剥落在砂岩和大理岩中均有发生,但砂岩处破坏更明显,易发生“H形破坏”;当裂隙在交界面和砂岩时,易为砂岩处裂尖产生的翼裂纹、反翼裂纹,剥落现象只发生在砂岩处,分别易发生“1γ形破坏”和“y形破坏”;同时,初始裂纹产生对应的应力应变水平σ、ε随裂隙位置由砂岩、交界面到大理岩的改变依次提高。裂隙倾角对岩样破坏影响为α=90°时裂尖不易起裂,α=45°时裂尖易起裂;在相同裂隙倾角下,裂隙位置相同时α=90°的σ、ε最大,α=0°、45°时最小;α=0°时均发生“H形破坏”,α=90°时均发生“y形破坏”。研究结果对实际工程建设和设计具有指导性意义。

复合岩样  /  预制裂隙  /  裂隙倾角  /  裂隙位置  /  破坏模式

Fissure distribution has a significant effect on mechanical properties and damage failure of layered rock mass with complex fissures. Based on the uniaxial compression test and DIC technique, the influence of fissure location and fissure angle on the mechanical properties and failure of the composite fissure rock sample composed of sandstone-like and martial-like rocks was analyzed. The results show that the mechanical properties of composite fissure rock samples increase with the change of fissure location from sandstone, interface and marble and the increase of fissure angle. Influence of fissure location on rock sample failure: When the fissure is in marble, the initial crack is easy to be the far-field crack in sandstone, and the surface spalling occurs in both sandstone and marble, but the failure is more obvious in sandstone, is prone to "H-shaped failure". When the fissure is at the interface and sandstone, it is easy to produce wing crack and anti-wing crack at the crack tip of sandstone. Exfoliation occurs only in sandstone, "1γ shape failure" and "y shape failure" are easy to occur, respectively. At the same time, the stress-strain levels σ and ε corresponding to the initial crack generation at the same fissure angle increase with the change of fissure position from sandstone, sandstone to marble and marble. Influence of fissure angle on rock sample failure: When α=90°, the tip is not easy to crack, and when α=45°, the tip is easy to crack. When the fissure location is the same, the σ and ε of α=90° are the largest, while the σ and ε of α=0° and α=45°are the smallest. "H-shaped failure" occurs when α=0° and "y-shaped failure" occurs when α=90°. The research results are instructive for practical engineering construction and design.

composite rock sample  /  precast crack  /  fissure angle  /  crack location  /  failure mode
章德超, 肖桃李, 张大飞, 折海成. 单裂隙分布对复合岩样力学性质和扩展破坏的影响. 水电能源科学, 2023 , 41 (4) : 176 -180 . DOI: 10.20040/j.cnki.1000-7709.2023.20221256
De-chao ZHANG, Tao-li XIAO, Da-fei ZHANG, Hai-cheng SHE. Effect of Single Fissure Distribution on Mechanical Properties and Propagation Failure of Composite Rock Samples[J]. Water Resources and Power, 2023 , 41 (4) : 176 -180 . DOI: 10.20040/j.cnki.1000-7709.2023.20221256
  • 岩土力学与工程国家重点实验室开放基金(Z020013)
  • 陕西省混凝土结构安全与耐久性重点实验室开放基金(SZ02105)
  • 湖北省荆州市科技计划项目(2020AC15)
  • 油气钻采工程湖北省重点实验室开放基金(YQZC202204)
2023年第41卷第4期
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doi: 10.20040/j.cnki.1000-7709.2023.20221256
  • 接收时间:2022-06-16
  • 首发时间:2026-01-27
  • 出版时间:2023-04-25
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出版历史
  • 收稿日期:2022-06-16
  • 修回日期:2022-07-12
基金
岩土力学与工程国家重点实验室开放基金(Z020013)
陕西省混凝土结构安全与耐久性重点实验室开放基金(SZ02105)
湖北省荆州市科技计划项目(2020AC15)
油气钻采工程湖北省重点实验室开放基金(YQZC202204)
作者信息
    1.长江大学城市建设学院,湖北 荆州 434000
    2.成都鼎佳能源技术有限公司,四川 成都 610051

通讯作者:

肖桃李(1978-),男,博士、教授,研究方向为深部岩体围岩稳定性,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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