Article(id=1281608077426279333, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1281608054340829934, articleNumber=null, orderNo=null, doi=10.16265/j.cnki.issn1003-3033.2026.04.0761, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1763827200000, receivedDateStr=2025-11-23, revisedDate=1770220800000, revisedDateStr=2026-02-05, acceptedDate=null, acceptedDateStr=null, onlineDate=1783488776784, onlineDateStr=2026-07-08, pubDate=1777305600000, pubDateStr=2026-04-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1783488776784, onlineIssueDateStr=2026-07-08, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1783488776784, creator=13701087609, updateTime=1783488776784, updator=13701087609, issue=Issue{id=1281608054340829934, tenantId=1146029695717560320, journalId=1146031787341344770, year='2026', volume='36', issue='4', pageStart='1', pageEnd='286', issueExtLink='null', onlineDate='null', pubDate='1777305600000', pubDateStr='2026-04-28', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1783488771281, creator='13701087609', updateTime=1783588648031, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1282026967885124001, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1281608054340829934, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1282026967885124002, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1281608054340829934, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=114, endPage=122, ext={EN=ArticleExt(id=1281608077615023014, articleId=1281608077426279333, tenantId=1146029695717560320, journalId=1146031787341344770, language=EN, title=Settlement deformation analysis of fissured loess foundation based on centrifugal model test, columnId=1277328337617941059, journalTitle=China Safety Science Journal, columnName=Safety Technology and Engineering, runingTitle=null, highlight=null, articleAbstract=

To investigate the influence of pre-existing fissures on the settlement and deformation behavior of high-fill compacted loess foundations, geotechnical centrifuge model tests were conducted for a flat-terrain high-fill engineering scenario. Two foundation models, an intact model and a fissured model, were designed and comparatively examined during the loading process with respect to deformation development and failure characteristics. The results show that the failure mode is transformed by fissures from a single tensile-cracking pattern to a combined tensile-shear failure, in which fissure propagation, a branched crack network, and stepped surface dislocation are formed. The overall stiffness and stability of the foundation are reduced by fissures; settlement is initiated earlier than in the intact model, the total settlement is increased, and the settlement distribution is more non-uniform. A V-shaped concentration pattern of surface settlement is exhibited and is markedly intensified with increasing load. In addition, a distinct stratified effect on stress distribution is induced by the fissure structure: vertical stress is concentrated in the upper layer, weakened in the middle layer, and only slightly affected in the lower layer, whereas horizontal stress is concentrated near the bottom and released in the middle and upper layers. These changes reconstruct stress-transfer paths and increase the risk of local instability.

, authors=Yuan Mei1, 2, Mengna Miao**, 1, 2, Xinyu Tian1, 2, Yanan Le1, 2, Yanan Yu1, 2, authorsList=Yuan Mei, Mengna Miao, Xinyu Tian, Yanan Le, Yanan Yu, authorCompany=null, correspAuthors=Mengna Miao, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1281608078097367977, articleId=1281608077426279333, tenantId=1146029695717560320, journalId=1146031787341344770, language=CN, title=基于离心模型试验的裂隙黄土地基沉降变形分析, columnId=1277328337940902469, journalTitle=中国安全科学学报, columnName=安全技术与工程, runingTitle=null, highlight=null, articleAbstract=

为探究既有裂隙对高填方压实黄土地基沉降变形特性的影响,以平坦场地高填方工程为背景,采用土工离心模型试验方法,设计并对比分析无裂隙与含裂隙2组高填方地基模型在加载过程中的变形与破坏特性。结果表明:裂隙改变地基的破坏形态,由单一拉裂转变为拉剪复合破坏,表现为裂隙拓展、树枝状裂缝网络及阶梯错动等复杂破坏特征;裂隙降低地基整体刚度与稳定性,使含裂隙地基沉降早于无裂隙地基发生,总沉降量增大,沉降分布更加不均,地表沉降呈“V型”集中态势,随荷载增加而显著加剧;此外,裂隙结构对地基应力分布具有明显的分层影响,竖向应力表现为上部集中、中部削弱、底部影响较小,水平应力则在底部发生集中、中上部释放,改变应力传递路径,增加局部失稳风险。

, authors=梅源教授1, 2, 苗梦娜**, 1, 2, 田新宇1, 2, 乐亚楠1, 2, 余雅楠1, 2, authorsList=梅源教授, 苗梦娜, 田新宇, 乐亚楠, 余雅楠, authorCompany=null, correspAuthors=苗梦娜, authorNote=

梅源(1983—),男,河南信阳人,博士,教授,主要从事土木工程施工与管理方面的教学与科研工作。E-mail:

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** 苗梦娜(2002—),女,河南商丘人,硕士研究生,主要研究方向为土木工程施工与岩土力学。E-mail:
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梅源(1983—),男,河南信阳人,博士,教授,主要从事土木工程施工与管理方面的教学与科研工作。E-mail:

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梅源(1983—),男,河南信阳人,博士,教授,主要从事土木工程施工与管理方面的教学与科研工作。E-mail:

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基于离心模型试验的裂隙黄土地基沉降变形分析
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梅源教授 1, 2 , 苗梦娜 **, 1, 2 , 田新宇 1, 2 , 乐亚楠 1, 2 , 余雅楠 1, 2
中国安全科学学报 | 安全技术与工程 2026,36(4): 114-122
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中国安全科学学报 |安全技术与工程 2026 , 36 (4) : 114 -122
基于离心模型试验的裂隙黄土地基沉降变形分析
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梅源(1983—),男,河南信阳人,博士,教授,主要从事土木工程施工与管理方面的教学与科研工作。E-mail:

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梅源(1983—),男,河南信阳人,博士,教授,主要从事土木工程施工与管理方面的教学与科研工作。E-mail:

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梅源教授1, 2 , 苗梦娜**, 1, 2 , 田新宇1, 2, 乐亚楠1, 2, 余雅楠1, 2
作者信息
  • 1西安建筑科技大学 土木工程学院,陕西 西安 710055
  • 2西安建筑科技大学 陕西省岩土与地下空间工程重点实验室,陕西 西安 710055
通讯作者:
** 苗梦娜(2002—),女,河南商丘人,硕士研究生,主要研究方向为土木工程施工与岩土力学。E-mail:
作者简介:

梅源(1983—),男,河南信阳人,博士,教授,主要从事土木工程施工与管理方面的教学与科研工作。E-mail:

Settlement deformation analysis of fissured loess foundation based on centrifugal model test
Yuan Mei1, 2 , Mengna Miao**, 1, 2 , Xinyu Tian1, 2, Yanan Le1, 2, Yanan Yu1, 2
Affiliations
  • 1School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an Shaanxi 710055, China
  • 2Shaanxi Key Lab of Geotechnical and Underground Space Engineering, Xi'an University of Architecture and Technology, Xi'an Shaanxi 710055, China
出版时间: 2026-04-28 doi: 10.16265/j.cnki.issn1003-3033.2026.04.0761
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为探究既有裂隙对高填方压实黄土地基沉降变形特性的影响,以平坦场地高填方工程为背景,采用土工离心模型试验方法,设计并对比分析无裂隙与含裂隙2组高填方地基模型在加载过程中的变形与破坏特性。结果表明:裂隙改变地基的破坏形态,由单一拉裂转变为拉剪复合破坏,表现为裂隙拓展、树枝状裂缝网络及阶梯错动等复杂破坏特征;裂隙降低地基整体刚度与稳定性,使含裂隙地基沉降早于无裂隙地基发生,总沉降量增大,沉降分布更加不均,地表沉降呈“V型”集中态势,随荷载增加而显著加剧;此外,裂隙结构对地基应力分布具有明显的分层影响,竖向应力表现为上部集中、中部削弱、底部影响较小,水平应力则在底部发生集中、中上部释放,改变应力传递路径,增加局部失稳风险。

离心模型试验  /  含裂隙地基  /  黄土地基  /  沉降变形  /  地基沉降  /  破坏特征

To investigate the influence of pre-existing fissures on the settlement and deformation behavior of high-fill compacted loess foundations, geotechnical centrifuge model tests were conducted for a flat-terrain high-fill engineering scenario. Two foundation models, an intact model and a fissured model, were designed and comparatively examined during the loading process with respect to deformation development and failure characteristics. The results show that the failure mode is transformed by fissures from a single tensile-cracking pattern to a combined tensile-shear failure, in which fissure propagation, a branched crack network, and stepped surface dislocation are formed. The overall stiffness and stability of the foundation are reduced by fissures; settlement is initiated earlier than in the intact model, the total settlement is increased, and the settlement distribution is more non-uniform. A V-shaped concentration pattern of surface settlement is exhibited and is markedly intensified with increasing load. In addition, a distinct stratified effect on stress distribution is induced by the fissure structure: vertical stress is concentrated in the upper layer, weakened in the middle layer, and only slightly affected in the lower layer, whereas horizontal stress is concentrated near the bottom and released in the middle and upper layers. These changes reconstruct stress-transfer paths and increase the risk of local instability.

centrifuge model test  /  fissured foundation  /  loess foundation  /  settlement deformation  /  foundation settlement  /  failure characteristics
梅源教授, 苗梦娜, 田新宇, 乐亚楠, 余雅楠. 基于离心模型试验的裂隙黄土地基沉降变形分析. 中国安全科学学报, 2026 , 36 (4) : 114 -122 . DOI: 10.16265/j.cnki.issn1003-3033.2026.04.0761
Yuan Mei, Mengna Miao, Xinyu Tian, Yanan Le, Yanan Yu. Settlement deformation analysis of fissured loess foundation based on centrifugal model test[J]. China Safety Science Journal, 2026 , 36 (4) : 114 -122 . DOI: 10.16265/j.cnki.issn1003-3033.2026.04.0761
  • 国家自然科学基金资助(52178302)
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2026年第36卷第4期
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doi: 10.16265/j.cnki.issn1003-3033.2026.04.0761
  • 接收时间:2025-11-23
  • 首发时间:2026-07-08
  • 出版时间:2026-04-28
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  • 收稿日期:2025-11-23
  • 修回日期:2026-02-05
基金
国家自然科学基金资助(52178302)
作者信息
    1西安建筑科技大学 土木工程学院,陕西 西安 710055
    2西安建筑科技大学 陕西省岩土与地下空间工程重点实验室,陕西 西安 710055

通讯作者:

** 苗梦娜(2002—),女,河南商丘人,硕士研究生,主要研究方向为土木工程施工与岩土力学。E-mail:
参考文献
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2种不同金属材料的力学参数

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属数
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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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