Article(id=1153992903169921965, tenantId=1146029695717560320, journalId=1146123222451335185, issueId=1153992893040677529, articleNumber=1671-1807(2025)06-0024-06, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1726156800000, receivedDateStr=2024-09-13, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1753062948266, onlineDateStr=2025-07-21, pubDate=1742832000000, pubDateStr=2025-03-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1753062948266, onlineIssueDateStr=2025-07-21, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1753062948266, creator=13701087609, updateTime=1753062948266, updator=13701087609, issue=Issue{id=1153992893040677529, tenantId=1146029695717560320, journalId=1146123222451335185, year='2025', volume='25', issue='6', pageStart='1', pageEnd='376', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1753062945851, creator=13701087609, updateTime=1755224695430, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1163059927997072066, tenantId=1146029695717560320, journalId=1146123222451335185, issueId=1153992893040677529, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1163059927997072067, tenantId=1146029695717560320, journalId=1146123222451335185, issueId=1153992893040677529, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=24, endPage=29, ext={EN=ArticleExt(id=1153992903916508099, articleId=1153992903169921965, tenantId=1146029695717560320, journalId=1146123222451335185, language=EN, title=Influence of Pore Number on the Tensile and Shear Mechanical Characteristics of Porous Rock-like Materials
via the DEM, columnId=1151876674645226399, journalTitle=Science Technology and Industry, columnName=Technology Innovation, runingTitle=null, highlight=null, articleAbstract=
The tensile and shear properties of porous rock-like materials affect the safety and stability of engineering. In this paper, numerical models with different number of pores were constructed, and the numerical simulation of direct tensile and direct shear tests were carried out by the DEM to explore the influence of the pore number on the tensile and shear characteristics of materials. The results show that the tensile strength, the ratio of compressive strength to tensile strength, cohesion and internal friction angle decrease in different forms with the increase of the pore number. In addition, under tensile action, cracks are mainly formed along the horizontal direction and are not affected by the number of pores. Under shear action, cracks are mainly formed along a certain Angle with the horizontal direction. The increase of the pore number mainly leads to the decrease of the anisotropy of fracture occurrence under shear action.
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多孔类岩石材料的拉剪力学特性影响工程的安全性与稳定性。构建含不同孔洞数量的数值模型,通过DEM法开展直接拉伸与直剪试验的数值模拟,探究孔洞数量对材料拉剪力学特征的影响。结果表明,随孔洞数量增加,抗拉强度、压拉强度比、凝聚力和内摩擦角以不同形式下降。另外,拉伸作用下裂隙主要沿水平方向生成且不受孔洞数量影响,剪切作用下裂隙主要沿与水平方向一定角度生成,孔洞数量增加主要导致剪切作用下裂隙产状的各向异性下降。
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赵铁永(1975—),男,浙江诸暨人,硕士,研究方向为交通岩土工程;
方传峰(1990—),男,山东泰安人,博士,副教授,研究方向为岩石力学与岩土工程;
吴根水(1993—),男,福建将乐人,博士,副教授,研究方向为采矿与岩石力学;
刘迅(1991—),男,湖南桃江人,博士,副教授,研究方向为矿山岩石力学;
胡晨晖(1999—),男,湖南衡阳人,硕士研究生,研究方向为采矿与安全工程。
, authorsList=赵铁永, 方传峰, 吴根水, 刘迅, 胡晨晖)}, authors=[Author(id=1245461212360721345, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1245461212536882120, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, authorId=1245461212360721345, language=EN, stringName=Tieyong ZHAO, firstName=Tieyong, middleName=null, lastName=ZHAO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1 Tongchuang Engineering Design Co. Ltd., Shaoxing 312000, Zhejiang, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1245461212729820113, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, authorId=1245461212360721345, language=CN, stringName=赵铁永, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1 同创工程设计有限公司, 浙江 绍兴 312000, bio={"content":"
赵铁永(1975—),男,浙江诸暨人,硕士,研究方向为交通岩土工程;
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赵铁永(1975—),男,浙江诸暨人,硕士,研究方向为交通岩土工程;
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1 同创工程设计有限公司, 浙江 绍兴 312000)])]), Author(id=1245461212880815065, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, orderNo=1, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1245461214998938597, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, authorId=1245461212880815065, language=EN, stringName=Chuanfeng FANG, firstName=Chuanfeng, middleName=null, lastName=FANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, 3, address=
2 School of Resources, Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, Hunan, China
3 Sanya Research Institute, Hunan University of Science and Technology, Sanya 572024, Hainan, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1245461215183487984, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, authorId=1245461212880815065, language=CN, stringName=方传峰, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2 湖南科技大学资源环境与安全工程学院, 湖南 湘潭 411201
3 湖南科技大学三亚研究院, 海南 三亚 572024, bio={"content":"
方传峰(1990—),男,山东泰安人,博士,副教授,研究方向为岩石力学与岩土工程;
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方传峰(1990—),男,山东泰安人,博士,副教授,研究方向为岩石力学与岩土工程;
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2 湖南科技大学资源环境与安全工程学院, 湖南 湘潭 411201)]), AuthorCompany(id=1245461212171977651, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, xref=3, ext=[AuthorCompanyExt(id=1245461212192949173, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, companyId=1245461212171977651, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3 湖南科技大学三亚研究院, 海南 三亚 572024)])]), Author(id=1245461215368037370, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1245461215535808514, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, authorId=1245461215368037370, language=EN, stringName=Genshui WU, firstName=Genshui, middleName=null, lastName=WU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2 School of Resources, Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, Hunan, China
3 Sanya Research Institute, Hunan University of Science and Technology, Sanya 572024, Hainan, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1245461215728746509, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, authorId=1245461215368037370, language=CN, stringName=吴根水, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2 湖南科技大学资源环境与安全工程学院, 湖南 湘潭 411201
3 湖南科技大学三亚研究院, 海南 三亚 572024, bio={"content":"
吴根水(1993—),男,福建将乐人,博士,副教授,研究方向为采矿与岩石力学;
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吴根水(1993—),男,福建将乐人,博士,副教授,研究方向为采矿与岩石力学;
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2 湖南科技大学资源环境与安全工程学院, 湖南 湘潭 411201)]), AuthorCompany(id=1245461212171977651, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, xref=3, ext=[AuthorCompanyExt(id=1245461212192949173, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, companyId=1245461212171977651, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3 湖南科技大学三亚研究院, 海南 三亚 572024)])]), Author(id=1245461215896518676, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1245461216160759842, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, authorId=1245461215896518676, language=EN, stringName=Xun LIU, firstName=Xun, middleName=null, lastName=LIU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2 School of Resources, Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, Hunan, China
3 Sanya Research Institute, Hunan University of Science and Technology, Sanya 572024, Hainan, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1245461216320143403, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, authorId=1245461215896518676, language=CN, stringName=刘迅, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, 3, address=
2 湖南科技大学资源环境与安全工程学院, 湖南 湘潭 411201
3 湖南科技大学三亚研究院, 海南 三亚 572024, bio={"content":"
刘迅(1991—),男,湖南桃江人,博士,副教授,研究方向为矿山岩石力学;
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刘迅(1991—),男,湖南桃江人,博士,副教授,研究方向为矿山岩石力学;
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2 湖南科技大学资源环境与安全工程学院, 湖南 湘潭 411201)]), AuthorCompany(id=1245461212171977651, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, xref=3, ext=[AuthorCompanyExt(id=1245461212192949173, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, companyId=1245461212171977651, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3 湖南科技大学三亚研究院, 海南 三亚 572024)])]), Author(id=1245461216445972531, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, orderNo=4, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1245461216680853565, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, authorId=1245461216445972531, language=EN, stringName=Chenhui HU, firstName=Chenhui, middleName=null, lastName=HU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, address=
2 School of Resources, Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, Hunan, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1245461216819265609, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, authorId=1245461216445972531, language=CN, stringName=胡晨晖, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, address=
2 湖南科技大学资源环境与安全工程学院, 湖南 湘潭 411201, bio={"content":"
胡晨晖(1999—),男,湖南衡阳人,硕士研究生,研究方向为采矿与安全工程。
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胡晨晖(1999—),男,湖南衡阳人,硕士研究生,研究方向为采矿与安全工程。
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32(1): 15-23., articleTitle=岩石微观胶结模型及离散元数值仿真方法初探, refAbstract=null)], funds=[Fund(id=1245461223123304653, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, awardId=2024JJ6219, language=CN, fundingSource=湖南省自然科学基金(2024JJ6219), fundOrder=null, country=null), Fund(id=1245461223240745164, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, awardId=E523C7, language=CN, fundingSource=湖南科技大学科研启动基金(E523C7), fundOrder=null, country=null), Fund(id=1245461223349797070, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, awardId=24B0441, language=CN, fundingSource=湖南省教育厅科学研究优秀青年项目(24B0441), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1245461211857404829, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, xref=1, ext=[AuthorCompanyExt(id=1245461211869987742, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1153992903169921965, companyId=1245461211857404829, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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| 模型参数 | 值 |
| 材料密度/(kg·m-3) | 2 600 |
| 局部阻尼系数 | 0.7 |
| 弹性和黏结有效模量/Pa | 3.5×1010 |
| 刚度比 | 2.0 |
| 摩擦角/(°) | 48.2 |
| 抗拉强度/Pa | 14.8×106 |
| 黏聚力/Pa | 11.3×106 |
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离散元模拟中所用本构模型参数
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| 模型参数 | 值 |
| 材料密度/(kg·m-3) | 2 600 |
| 局部阻尼系数 | 0.7 |
| 弹性和黏结有效模量/Pa | 3.5×1010 |
| 刚度比 | 2.0 |
| 摩擦角/(°) | 48.2 |
| 抗拉强度/Pa | 14.8×106 |
| 黏聚力/Pa | 11.3×106 |
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