Article(id=1223202689065013837, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223202678788965355, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20230336, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1678118400000, receivedDateStr=2023-03-07, revisedDate=1681056000000, revisedDateStr=2023-04-10, acceptedDate=null, acceptedDateStr=null, onlineDate=1769563847080, onlineDateStr=2026-01-28, pubDate=1703433600000, pubDateStr=2023-12-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769563847080, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769563847080, creator=13701087609, updateTime=1769563847080, updator=13701087609, issue=Issue{id=1223202678788965355, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='12', pageStart='1', pageEnd='228', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769563844630, creator=13701087609, updateTime=1769563913308, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223202966899901286, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223202678788965355, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223202966899901287, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223202678788965355, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=156, endPage=159, ext={EN=ArticleExt(id=1223202689455084143, articleId=1223202689065013837, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Numerical Simulation of Uniaxial Compressive of Crossing Multi-fractured Rock Mass Based on Particle Flow Code, columnId=1222925283779400191, journalTitle=Water Resources and Power, columnName=WATER CONSERVANCY AND HYDROPOWER ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

In order to study the mechanical characteristics such as fracture mode, crack propagation characteristics, and strength characteristics of intersecting multi-fractured rock masses in uniaxial compression tests, the particle flow program was used to simulate the mechanical characteristics of intersecting multi-fractured rock masses in uniaxial compression tests. The impact of the angle between intersecting cracks on the strength characteristics, failure mode, microcrack development and evolution law of multi-fractured samples during uniaxial compression was analyzed. The experimental results show that the failure strength of the cross multi-crack specimen exhibits a slow bottom "U" shaped characteristic with the increase of crack angle; The failure mode of intersecting multi-crack specimens is mainly tensile shear failure, with some specimens exhibiting shear failure; The failure process of intersecting multi-crack specimens first involves the generation and intersection of cracks between the tips inside the cracks, followed by the generation of cracks at the outer tips of the cracks and their transmission parallel to the loading direction to both ends of the rock mass, ultimately leading to macroscopic failure of the rock mass. The results of this study contribute to the understanding of the mechanical mechanism of cross fissured rock masses in compression failure, and are a supplement to the research on the mechanical properties of cross fissured rock masses.

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为研究交叉多裂隙岩体在单轴压缩试验中的破坏模式、裂纹扩展特征、强度特性等力学相应特征,利用颗粒流程序模拟了交叉多裂隙岩体在单轴压缩试验中的力学特征,分析了交叉裂隙夹角对多裂隙试样在单轴压缩过程中的强度特性、破坏模式、微裂纹发育及演化规律的影响。结果表明,交叉多裂隙试样破坏强度随裂隙夹角的增大表现出缓底“U”型的特性;交叉多裂隙试样破坏模式以拉剪破坏为主,部分试样中为剪切破坏;交叉多裂隙试样破坏过程首先是裂隙内尖端之间产生裂纹并交汇贯通,随后在裂隙外尖端产生裂纹并平行于加载方向向上下两侧传递至岩体两端,最终致使岩体发生宏观破坏。研究成果有助于理解交叉多裂隙岩体在压缩破坏中的力学机制,是对交叉多隙岩体力学性质研究的补充。

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舒杨(1990-),男,硕士、工程师,研究方向为岩体结构,E-mail:

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舒杨(1990-),男,硕士、工程师,研究方向为岩体结构,E-mail:

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舒杨(1990-),男,硕士、工程师,研究方向为岩体结构,E-mail:

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交叉多裂隙岩体单轴压缩颗粒流数值模拟研究
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舒杨 1 , 孙少锐 2 , 宋章 1
水电能源科学 | 水利水电工程 2023,41(12): 156-159
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水电能源科学 | 水利水电工程 2023, 41(12): 156-159
交叉多裂隙岩体单轴压缩颗粒流数值模拟研究
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舒杨1 , 孙少锐2, 宋章1
作者信息
  • 1.中铁二院工程集团有限责任公司,四川 成都 610031
  • 2.河海大学地球科学与工程学院,江苏 南京 211100
  • 舒杨(1990-),男,硕士、工程师,研究方向为岩体结构,E-mail:

Numerical Simulation of Uniaxial Compressive of Crossing Multi-fractured Rock Mass Based on Particle Flow Code
Yang SHU1 , Shao-rui SUN2, Zhang SONG1
Affiliations
  • 1.China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031, China
  • 2.School of Earth Sciences and Engineering, Hohai University, Nanjing 211100, China
出版时间: 2023-12-25 doi: 10.20040/j.cnki.1000-7709.2023.20230336
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为研究交叉多裂隙岩体在单轴压缩试验中的破坏模式、裂纹扩展特征、强度特性等力学相应特征,利用颗粒流程序模拟了交叉多裂隙岩体在单轴压缩试验中的力学特征,分析了交叉裂隙夹角对多裂隙试样在单轴压缩过程中的强度特性、破坏模式、微裂纹发育及演化规律的影响。结果表明,交叉多裂隙试样破坏强度随裂隙夹角的增大表现出缓底“U”型的特性;交叉多裂隙试样破坏模式以拉剪破坏为主,部分试样中为剪切破坏;交叉多裂隙试样破坏过程首先是裂隙内尖端之间产生裂纹并交汇贯通,随后在裂隙外尖端产生裂纹并平行于加载方向向上下两侧传递至岩体两端,最终致使岩体发生宏观破坏。研究成果有助于理解交叉多裂隙岩体在压缩破坏中的力学机制,是对交叉多隙岩体力学性质研究的补充。

岩体  /  交叉多裂隙  /  单轴压缩  /  宏细观特征  /  颗粒流

In order to study the mechanical characteristics such as fracture mode, crack propagation characteristics, and strength characteristics of intersecting multi-fractured rock masses in uniaxial compression tests, the particle flow program was used to simulate the mechanical characteristics of intersecting multi-fractured rock masses in uniaxial compression tests. The impact of the angle between intersecting cracks on the strength characteristics, failure mode, microcrack development and evolution law of multi-fractured samples during uniaxial compression was analyzed. The experimental results show that the failure strength of the cross multi-crack specimen exhibits a slow bottom "U" shaped characteristic with the increase of crack angle; The failure mode of intersecting multi-crack specimens is mainly tensile shear failure, with some specimens exhibiting shear failure; The failure process of intersecting multi-crack specimens first involves the generation and intersection of cracks between the tips inside the cracks, followed by the generation of cracks at the outer tips of the cracks and their transmission parallel to the loading direction to both ends of the rock mass, ultimately leading to macroscopic failure of the rock mass. The results of this study contribute to the understanding of the mechanical mechanism of cross fissured rock masses in compression failure, and are a supplement to the research on the mechanical properties of cross fissured rock masses.

rock mass  /  crossing multi-fractured  /  uniaxial compressive  /  macro and micro characteristics  /  particle flow code
舒杨, 孙少锐, 宋章. 交叉多裂隙岩体单轴压缩颗粒流数值模拟研究. 水电能源科学, 2023 , 41 (12) : 156 -159 . DOI: 10.20040/j.cnki.1000-7709.2023.20230336
Yang SHU, Shao-rui SUN, Zhang SONG. Numerical Simulation of Uniaxial Compressive of Crossing Multi-fractured Rock Mass Based on Particle Flow Code[J]. Water Resources and Power, 2023 , 41 (12) : 156 -159 . DOI: 10.20040/j.cnki.1000-7709.2023.20230336
2023年第41卷第12期
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doi: 10.20040/j.cnki.1000-7709.2023.20230336
  • 接收时间:2023-03-07
  • 首发时间:2026-01-28
  • 出版时间:2023-12-25
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  • 收稿日期:2023-03-07
  • 修回日期:2023-04-10
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    1.中铁二院工程集团有限责任公司,四川 成都 610031
    2.河海大学地球科学与工程学院,江苏 南京 211100
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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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