Article(id=1307086654649426257, tenantId=1146029695717560320, journalId=1306274195778404443, issueId=1307086317918122434, articleNumber=null, orderNo=null, doi=10.12401/j.nwg.2025093, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1734537600000, receivedDateStr=2024-12-19, revisedDate=1748102400000, revisedDateStr=2025-05-25, acceptedDate=1748188800000, acceptedDateStr=2025-05-26, onlineDate=1789563342964, onlineDateStr=2026-09-16, pubDate=1776614400000, pubDateStr=2026-04-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1789563342964, onlineIssueDateStr=2026-09-16, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1789563342964, creator=13701087609, updateTime=1789563342964, updator=13701087609, issue=Issue{id=1307086317918122434, tenantId=1146029695717560320, journalId=1306274195778404443, year='2026', volume='59', issue='2', pageStart='1', pageEnd='328', issueExtLink='null', onlineDate='null', pubDate='1776614400000', pubDateStr='2026-04-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1789563262680, creator='13701087609', updateTime=1789616239746, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1307308519917638393, tenantId=1146029695717560320, journalId=1306274195778404443, issueId=1307086317918122434, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1307308519917638394, tenantId=1146029695717560320, journalId=1306274195778404443, issueId=1307086317918122434, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=153, endPage=160, ext={EN=ArticleExt(id=1307086656008380754, articleId=1307086654649426257, tenantId=1146029695717560320, journalId=1306274195778404443, language=EN, title=Research on the Geometric Characteristics and Formation Mechanism of Loess Collapse Based on UAV Aerial Survey and Numerical Simulation, columnId=null, journalTitle=Northwestern Geology, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In response to the complex formation mechanism of loess landslide disasters and the insufficient accuracy of traditional investigation methods, this study proposes a "space ground number" collaborative analysis method. The typical loess landslide body that occurred in Yangjiagou Town Industrial Park, Mizhi County on September 14, 2023, is taken as the research object. Three dimensional terrain data with centimeter level resolution is obtained through unmanned aerial vehicle aerial survey technology to reconstruct the geometric shape characteristics of the landslide body; Reveal the characteristics of controlling structural planes and stratigraphic combinations through on-site geological surveys. Based on the mixed finite element discrete element numerical simulation (Y-Mat), a dual scale model considering the real geometric shape and structural plane distribution is constructed. Through simulation, it is revealed that due to the influence of terrain and crack water conduction, the slope foot softens when encountering water, the strength decreases, and the upper loess body is pulled to deform. When the deformation accumulates to a certain extent, it collapses downwards along the original through water conduction cracks. During the falling process, some loess disintegrates and accumulates within a certain range of the slope foot, forming loess blocks and loose soil of different sizes, which impact the buildings at the slope foot and cause them to collapse. The research results can provide multi-source data fusion analysis methods and technical support for the study of the evolution mechanism of landslide geological hazards in the Loess Plateau.
, authors=Bo GAO, Gang LIU
*, authorsList=Bo GAO, Gang LIU, authorCompany=null, correspAuthors=Gang LIU, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright © 2026 Northwestern Geology. All rights reserved., 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=1307086660429177195, articleId=1307086654649426257, tenantId=1146029695717560320, journalId=1306274195778404443, language=CN, title=基于无人机航测与数值模拟的黄土崩塌几何特征及形成机制研究, columnId=1307086318673097157, journalTitle=西北地质, columnName=西北地区环境岩土工程问题研究, runingTitle=null, highlight=null, articleAbstract=
针对黄土崩塌灾害形成机制复杂、传统调查手段精度不足的问题,本研究提出"空–地–数"协同分析方法,以2023年9月14日米脂县杨家沟镇产业园区发生的典型黄土崩塌体为研究对象,通过无人机航测技术获取厘米级分辨率的三维地形数据,重构崩塌体几何形态特征;结合现场地质调查揭示控制性结构面与地层组合特征。基于混合有限元–离散元数值模拟(Y-Mat)构建考虑真实几何形态与结构面分布的双尺度模型,通过模拟揭示:受地形与裂隙导水影响,坡脚遇水发生软化,强度降低,牵引上部黄土体产生形变,形变累计至一定程度,沿原有贯通性导水裂隙向下崩落,下落过程中部分黄土发生解体,堆积于坡脚一定范围内,形成大小不同的黄土块体和散土,对坡脚房屋产生冲击,造成房屋倒塌。研究成果可为黄土高原崩塌地质灾害演化机制研究提供多源数据融合分析方法与技术支撑。
, authors=高波, 刘港
*, authorsList=高波, 刘港, authorCompany=null, correspAuthors=刘港, authorNote=
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, copyrightStatement=版权所有©《西北地质》编辑部 2026, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=CE7Z6cAXzmS+T7EzLYtTRQ==, magXml=Ip597ON+baUkXmA3y0kwmg==, pdfUrl=null, pdf=RT4xUXdNvnZktcbCSQYPUA==, pdfFileSize=38543810, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=gPfJHnXfCu7OPsLhBJyCxg==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=0l5n0ge5svcZHT4XJ8jdvQ==, mapNumber=null, fund=null)}, authors=[Author(id=1307086660836024688, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=43617102@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1307086660919910770, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, authorId=1307086660836024688, language=EN, stringName=Bo GAO, firstName=Bo, middleName=null, lastName=GAO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=Key Laboratory of Loess Geological Hazards of the Ministry of Natural Resources, Xi'an Center of China Geological Survey, Xi'an 710119, Shaanxi, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1307086660987019635, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, authorId=1307086660836024688, language=CN, stringName=高波, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=自然资源部黄土地质灾害重点实验室,中国地质调查局西安地质调查中心,陕西 西安 710119, bio={"content":"
高波(1981−),男,正高级工程师,从事地质灾害监测预警与风险评价研究工作。E−mail:43617102@qq.com
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高波(1981−),男,正高级工程师,从事地质灾害监测预警与风险评价研究工作。E−mail:43617102@qq.com
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Northwestern Geology, 2025, 58(2): 121−135., articleTitle=null, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1307086660626309484, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, xref=null, ext=[AuthorCompanyExt(id=1307086660634698093, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, companyId=1307086660626309484, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Key Laboratory of Loess Geological Hazards of the Ministry of Natural Resources, Xi'an Center of China Geological Survey, Xi'an 710119, Shaanxi, China), AuthorCompanyExt(id=1307086660638892398, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, companyId=1307086660626309484, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=自然资源部黄土地质灾害重点实验室,中国地质调查局西安地质调查中心,陕西 西安 710119)])], figs=[ArticleFig(id=1307086662283059587, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, language=EN, label=Fig.1, caption=
Location of Yangjiagou industrial park collapse, figureFileSmall=9GV5UeJmpqIFKEtYfEvvuA==, figureFileBig=gPfJHnXfCu7OPsLhBJyCxg==, tableContent=null), ArticleFig(id=1307086662350168452, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, language=CN, label=图1, caption=
杨家沟产业园区崩塌所处位置, figureFileSmall=9GV5UeJmpqIFKEtYfEvvuA==, figureFileBig=gPfJHnXfCu7OPsLhBJyCxg==, tableContent=null), ArticleFig(id=1307086662652158341, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, language=EN, label=Fig.2, caption=
Collapse DOM and DEM (resolution 0.04 m) of Yangjiagou industrial park, figureFileSmall=vKJhZ5HYlbe+jOaJiOJVdA==, figureFileBig=zaWROwR4oCHcdC87XVmJGA==, tableContent=null), ArticleFig(id=1307086662719267206, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, language=CN, label=图2, caption=
杨家沟产业园区崩塌DOM及DEM(分辨率0.04 m), figureFileSmall=vKJhZ5HYlbe+jOaJiOJVdA==, figureFileBig=zaWROwR4oCHcdC87XVmJGA==, tableContent=null), ArticleFig(id=1307086662794764679, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, language=EN, label=Fig.3, caption=
Images before and after the collapse of Yangjiagou industrial park, figureFileSmall=rmWiKbveFXmoAeWcmjcQww==, figureFileBig=Z0w/l7KbKCHxSBjG6LDKuQ==, tableContent=null), ArticleFig(id=1307086662937371016, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, language=CN, label=图3, caption=
杨家沟产业园区崩塌发生前后影像, figureFileSmall=rmWiKbveFXmoAeWcmjcQww==, figureFileBig=Z0w/l7KbKCHxSBjG6LDKuQ==, tableContent=null), ArticleFig(id=1307086663054811529, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, language=EN, label=Fig.4, caption=
Drone aerial photo of Yangjiagou industrial park collapse, figureFileSmall=yax3zR87QXtdmok9ycSG5Q==, figureFileBig=NpUMySK8nNV/NEBx9AH+oA==, tableContent=null), ArticleFig(id=1307086663117726090, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, language=CN, label=图4, caption=
杨家沟产业园区崩塌无人机航拍照片, figureFileSmall=yax3zR87QXtdmok9ycSG5Q==, figureFileBig=NpUMySK8nNV/NEBx9AH+oA==, tableContent=null), ArticleFig(id=1307086663189029259, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, language=EN, label=Fig.5, caption=
Monthly rainfall statistics of Mizhi County in 2023, figureFileSmall=wR6A6oSahjXP7yGC/LqtCA==, figureFileBig=Q5sIMf4ANsI5VFcELJvzBQ==, tableContent=null), ArticleFig(id=1307086665042911628, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, language=CN, label=图5, caption=
米脂县2023年逐月降雨量统计, figureFileSmall=wR6A6oSahjXP7yGC/LqtCA==, figureFileBig=Q5sIMf4ANsI5VFcELJvzBQ==, tableContent=null), ArticleFig(id=1307086665118409101, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, language=EN, label=Fig.6, caption=
Daily rainfall statistics of Mizhi County in september 2023, figureFileSmall=vkLhoHmsOxgCYCKm1V+9tA==, figureFileBig=w66erOfvtIwl7t94W5tL5Q==, tableContent=null), ArticleFig(id=1307086665206489486, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, language=CN, label=图6, caption=
米脂县2023年9月逐日降雨量统计, figureFileSmall=vkLhoHmsOxgCYCKm1V+9tA==, figureFileBig=w66erOfvtIwl7t94W5tL5Q==, tableContent=null), ArticleFig(id=1307086665512673679, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, language=EN, label=Fig.7, caption=
Basic principle of hybrid finite element and discrete element method, figureFileSmall=Bmf41LPbhTNnew9d5eM1tA==, figureFileBig=j5eR7TKbwQapaSiBtzCzDA==, tableContent=null), ArticleFig(id=1307086665583976848, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, language=CN, label=图7, caption=
混合有限元–离散元基本原理, figureFileSmall=Bmf41LPbhTNnew9d5eM1tA==, figureFileBig=j5eR7TKbwQapaSiBtzCzDA==, tableContent=null), ArticleFig(id=1307086665881772433, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, language=EN, label=Fig.8, caption=
Model meshing, figureFileSmall=hRcTlitKwrmkibiVtRDxWw==, figureFileBig=1LAt6LoZI+x7K7+MutTAxA==, tableContent=null), ArticleFig(id=1307086665965658514, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, language=CN, label=图8, caption=
网格剖分, figureFileSmall=hRcTlitKwrmkibiVtRDxWw==, figureFileBig=1LAt6LoZI+x7K7+MutTAxA==, tableContent=null), ArticleFig(id=1307086666053738899, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, language=EN, label=Fig.9, caption=
The deformation and failure process of loess collapse (total displacement cloud map), figureFileSmall=Eo2/2OZaJorzI9hnv35NhA==, figureFileBig=10/CELLsCqRIJAa7TcL3Mg==, tableContent=null), ArticleFig(id=1307086666292814228, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, language=CN, label=图9, caption=
杨家沟产业园区崩塌变形破坏过程(总位移云图), figureFileSmall=Eo2/2OZaJorzI9hnv35NhA==, figureFileBig=10/CELLsCqRIJAa7TcL3Mg==, tableContent=null), ArticleFig(id=1307086666359923093, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, language=EN, label=Fig.10, caption=
Cloud map of shear stress field in loess collapse, figureFileSmall=vUQNZOt/R/sjHLpo5dYSEg==, figureFileBig=yqhtXVwceXw/EPQjiYHxXQ==, tableContent=null), ArticleFig(id=1307086666431226262, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, language=CN, label=图10, caption=
黄土崩塌剪应力场云图, figureFileSmall=vUQNZOt/R/sjHLpo5dYSEg==, figureFileBig=yqhtXVwceXw/EPQjiYHxXQ==, tableContent=null), ArticleFig(id=1307086666510918039, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, language=EN, label=Fig.11, caption=
Displacement curve of monitoring points, figureFileSmall=7/oEOS3O9Fc2QsTXcRtKdg==, figureFileBig=xNSQRXib27VQiep8tBeMDA==, tableContent=null), ArticleFig(id=1307086666594804120, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, language=CN, label=图11, caption=
监测点位移曲线, figureFileSmall=7/oEOS3O9Fc2QsTXcRtKdg==, figureFileBig=xNSQRXib27VQiep8tBeMDA==, tableContent=null), ArticleFig(id=1307086666661912985, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, language=EN, label=Tab.1, caption=
Mechanical parameters of loess
, figureFileSmall=null, figureFileBig=null, tableContent=
| 单元类别 | 物理力学参数 | 黄土 | 软化黄土 | 裂隙 |
网格 单元 | 弹性模量(MPa) | 8.8 | 2.5 | — |
| 泊松比(−) | 0.42 | 0.43 | — |
| 密度(kg/m3) | 1.69 | 1.88 | — |
| 内聚力(kPa) | 12 | 5 | — |
| 内摩擦角(°) | 25 | 18 | — |
| 抗拉强度(kPa) | 13 | 6 | — |
节理 单元 | 粘聚力(kPa) | 12 | 5 | 5 |
| 最大静摩擦角(°) | 28 | 21 | 21 |
| 滑动摩擦角(°) | 25 | 18 | 18 |
| 残余摩擦角(°) | 15 | 10 | 10 |
| 抗拉强度(kPa) | 13 | 6 | 6 |
| I型断裂能释放率(N/m) | 100 | 20 | 20 |
| II型断裂能释放率(N/m) | 800 | 160 | 160 |
| 裂隙罚函数(Pa) | 2.6×107 | 1.2×107 | 1.2×107 |
| 法向接触罚函数(Pa) | 2.6×107 | 1.2×107 | 1.2×107 |
), ArticleFig(id=1307086666766770586, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086654649426257, language=CN, label=表1, caption=
数值模拟计算参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 单元类别 | 物理力学参数 | 黄土 | 软化黄土 | 裂隙 |
网格 单元 | 弹性模量(MPa) | 8.8 | 2.5 | — |
| 泊松比(−) | 0.42 | 0.43 | — |
| 密度(kg/m3) | 1.69 | 1.88 | — |
| 内聚力(kPa) | 12 | 5 | — |
| 内摩擦角(°) | 25 | 18 | — |
| 抗拉强度(kPa) | 13 | 6 | — |
节理 单元 | 粘聚力(kPa) | 12 | 5 | 5 |
| 最大静摩擦角(°) | 28 | 21 | 21 |
| 滑动摩擦角(°) | 25 | 18 | 18 |
| 残余摩擦角(°) | 15 | 10 | 10 |
| 抗拉强度(kPa) | 13 | 6 | 6 |
| I型断裂能释放率(N/m) | 100 | 20 | 20 |
| II型断裂能释放率(N/m) | 800 | 160 | 160 |
| 裂隙罚函数(Pa) | 2.6×107 | 1.2×107 | 1.2×107 |
| 法向接触罚函数(Pa) | 2.6×107 | 1.2×107 | 1.2×107 |
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