Article(id=1240648789220979070, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1240648781595725960, articleNumber=null, orderNo=null, doi=10.3969/j.issn.0253-6099.2024.05.007, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1711382400000, receivedDateStr=2024-03-26, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1773723321490, onlineDateStr=2026-03-17, pubDate=1727712000000, pubDateStr=2024-10-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773723321490, onlineIssueDateStr=2026-03-17, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773723321490, creator=13701087609, updateTime=1773723321490, updator=13701087609, issue=Issue{id=1240648781595725960, tenantId=1146029695717560320, journalId=1235980550691926019, year='2024', volume='44', issue='5', pageStart='1', pageEnd='184', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773723319672, creator=13701087609, updateTime=1773824608750, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241073618831078097, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1240648781595725960, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241073618831078098, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1240648781595725960, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=35, endPage=40, ext={EN=ArticleExt(id=1240648790944838069, articleId=1240648789220979070, tenantId=1146029695717560320, journalId=1235980550691926019, language=EN, title=Stability and Reliability of Valley Dump Slopes, columnId=1236276106018484431, journalTitle=Mining and Metallurgical Engineering, columnName=MINING, runingTitle=null, highlight=null, articleAbstract=
In order to address the problem of slope stability for a valley dumpsite in one mountain area, numerical simulation was conducted with FLAC3D for the stability of slope under three working conditions, including natural state, rainstorm case and earthquake occurrence. The stability and reliability of the dump under conditions of rainstorm plus seismic was evaluated with introduced Monte Carlo algorithm. Results show that the overall and part of dumpsite slope, under all three working conditions of natural state, rainstorm and earthquake, can be in a stable state, and the overall safety factors present a normal distribution and are mainly within the range of 2.0-2.1, consistent with the numerical simulation results (2.08); under conditions of rainstorm plus seismic, the probability for the overall dumpsite to be unstable is 0, while some parts of dumpsite have a 35.99% probability to be unstable. It is shown that the numerical simulation value and on-site monitoring result present a deviation from 9.8% to 15.4% based on the comparison.
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针对某高山峡谷地区的沟谷型弃渣场边坡稳定性问题,借助FLAC3D数值模拟软件对边坡在天然、暴雨、地震3种工况下的稳定性进行了数值模拟;引入蒙特卡罗法对弃渣场暴雨+地震工况下的稳定性可靠度进行评价。结果表明:天然、暴雨、地震3种工况下弃渣场边坡整体和局部均处于稳定状态;弃渣场整体安全系数呈正态分布,整体安全系数集中在2.0~2.1,与数值模拟结果(2.08)一致;在暴雨+地震工况下,弃渣场整体处于不稳定状态的概率为0,局部处于不稳定状态的概率为35.99%。数值模拟与现场监测对比分析结果表明,两者的偏差为9.8%~15.4%。
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, authorsList=张林)}, authors=[Author(id=1240648796309353251, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648789220979070, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=83458777@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1240648796418405167, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648789220979070, authorId=1240648796309353251, language=EN, stringName=Lin ZHANG, firstName=Lin, middleName=null, lastName=ZHANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=The 5th Engineering Co, Ltd, China Railway Construction Bridge Engineering Bureau Group, Chengdu 610500, Sichuan, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1240648796510679862, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648789220979070, authorId=1240648796309353251, language=CN, stringName=张林, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=中铁建大桥工程局集团第五工程有限公司,四川 成都 610500, bio={"content":"
张林(1982—),男,四川南充人,高级工程师,主要研究铁路、公路、桥梁及地下工程建设。E-mail:83458777@qq.com
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张林(1982—),男,四川南充人,高级工程师,主要研究铁路、公路、桥梁及地下工程建设。E-mail:83458777@qq.com
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2014,
35(7): 1979-1986., articleTitle=基于蒙特卡罗边坡稳定二元体系的建立与应用, refAbstract=null)], funds=[Fund(id=1240648803913625837, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648789220979070, awardId=2022NSFSC1063, language=CN, fundingSource=四川省自然科学基金(2022NSFSC1063), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1240648796170941204, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648789220979070, xref=null, ext=[AuthorCompanyExt(id=1240648796179329813, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648789220979070, companyId=1240648796170941204, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=The 5th Engineering Co, Ltd, China Railway Construction Bridge Engineering Bureau Group, Chengdu 610500, Sichuan, China), AuthorCompanyExt(id=1240648796187718422, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648789220979070, companyId=1240648796170941204, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=中铁建大桥工程局集团第五工程有限公司,四川 成都 610500)])], figs=[ArticleFig(id=1240648799421526996, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648789220979070, language=EN, label=null, caption=null, figureFileSmall=nh6P5eJj+DZBK/5qnRYOWQ==, figureFileBig=ro9Cn0Qw4Medk9bMNDxm3w==, tableContent=null), ArticleFig(id=1240648799543161826, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648789220979070, language=CN, label=图1, caption=
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平桥沟弃渣场边坡计算模型, figureFileSmall=+ljQwMwgYO49iagZ2dCXVw==, figureFileBig=wCnbH/qxPrYjxwRPonkScg==, tableContent=null), ArticleFig(id=1240648800017117192, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648789220979070, language=EN, label=null, caption=null, figureFileSmall=NhP9AJzIM3v2ib9ecHpSYw==, figureFileBig=nr6QCTmOvPQx35xTZTJPlg==, tableContent=null), ArticleFig(id=1240648800134557716, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648789220979070, language=CN, label=图3, caption=
弃渣场天然工况下数值模拟云图(a)剪切滑移破坏面图;(b)X向位移变形特征图;(c)Z向位移变形特征图;(d)总位移云图
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弃渣场暴雨工况下数值模拟云图(a)剪切滑移破坏面图;(b)X向位移变形特征图;(c)Z向位移变形特征图;(d)总位移云图
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弃渣场地震工况下数值模拟云图(a)剪切滑移破坏面图;(b)X向位移变形特征图;(c)Z向位移变形特征图;(d)总位移云图
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可靠度变化曲线, figureFileSmall=dfLBYDj8Pzrg22tvAJtVvQ==, figureFileBig=2b9zA5qOp4ABaeyjngdV9A==, tableContent=null), ArticleFig(id=1240648800809840733, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648789220979070, language=EN, label=null, caption=null, figureFileSmall=CQQINryIs+4PjYTu+RqeGw==, figureFileBig=g2A8Y3xGpryl/5FvvIgEbw==, tableContent=null), ArticleFig(id=1240648800981807209, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648789220979070, language=CN, label=图7, caption=
弃渣场暴雨+地震工况下数值模拟云图(a)剪切滑移破坏面图;(b)X向位移变形特征图;(c)Z向位移变形特征图;(d)总位移云图
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安全系数概率分布曲线(a)整体安全系数概率分布;(b)局部安全系数概率分布;(c)局部安全系数累计分布曲线图
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弃渣场位移变化曲线(a)水平位移;(b)竖向位移;(c)总位移
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| 组号 | 材料 | 工况 | 容重/(kN·m-3) | 弹性模量/MPa | 泊松比 | 黏聚力/kPa | 内摩擦角/(°) |
|---|
| 1 | 弃渣 | 天然 | 21.0 | 10 | 0.35 | 0 | 35 |
| 暴雨 | 21.7 | 10 | 0.35 | 0 | 32 |
| 2 | 卵石土 | 天然 | 21.5 | 4 500 | 0.25 | 55 | 36 |
| 暴雨 | 22.1 | 4 500 | 0.25 | 55 | 33 |
| 3 | 基岩 | 天然 | 25.5 | 25 000 | 0.16 | 2 500 | 42 |
| 暴雨 | 25.8 | 25 000 | 0.16 | 2 500 | 41 |
| 4 | C20片石砼 | 天然 | 25.0 | 25 000 | 0.20 | 2 600 | 50 |
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弃渣场渣体、沟道覆盖层及基岩的物理力学参数
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| 组号 | 材料 | 工况 | 容重/(kN·m-3) | 弹性模量/MPa | 泊松比 | 黏聚力/kPa | 内摩擦角/(°) |
|---|
| 1 | 弃渣 | 天然 | 21.0 | 10 | 0.35 | 0 | 35 |
| 暴雨 | 21.7 | 10 | 0.35 | 0 | 32 |
| 2 | 卵石土 | 天然 | 21.5 | 4 500 | 0.25 | 55 | 36 |
| 暴雨 | 22.1 | 4 500 | 0.25 | 55 | 33 |
| 3 | 基岩 | 天然 | 25.5 | 25 000 | 0.16 | 2 500 | 42 |
| 暴雨 | 25.8 | 25 000 | 0.16 | 2 500 | 41 |
| 4 | C20片石砼 | 天然 | 25.0 | 25 000 | 0.20 | 2 600 | 50 |
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| 工况 | 最大总位移/cm | X向最大位移/cm | Z向最大位移/cm | 安全系数 |
|---|
| 天然工况 | 71.06 | 22.50 | 70.00 | 3.20 |
| 暴雨工况 | 73.59 | 25.00 | 70.00 | 3.02 |
| 地震工况 | 80.12 | 45.00 | 60.00 | 2.27 |
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不同工况下变形特征及安全系数
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| 工况 | 最大总位移/cm | X向最大位移/cm | Z向最大位移/cm | 安全系数 |
|---|
| 天然工况 | 71.06 | 22.50 | 70.00 | 3.20 |
| 暴雨工况 | 73.59 | 25.00 | 70.00 | 3.02 |
| 地震工况 | 80.12 | 45.00 | 60.00 | 2.27 |
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| 滑动形式 | K | ai | bi | Fsmax | Fsmin |
|---|
| 整体 | 6 000 | 2.09 | 0.39 | 2.78 | 1.31 |
| 局部 | 6 000 | 1.24 | 0.28 | 1.79 | 0.72 |
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弃渣场边坡变形特征及安全系数
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| 滑动形式 | K | ai | bi | Fsmax | Fsmin |
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| 整体 | 6 000 | 2.09 | 0.39 | 2.78 | 1.31 |
| 局部 | 6 000 | 1.24 | 0.28 | 1.79 | 0.72 |
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| 位移类型 | 实际变形量/mm | 计算变形量/mm | 偏差量/mm | 偏差率/% |
|---|
| 水平位移 | 295.5 | 250.0 | 45.5 | 15.4 |
| 竖向位移 | 776.4 | 700.0 | 76.4 | 9.8 |
| 总位移 | 844.9 | 735.9 | 109.0 | 12.9 |
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弃渣场实际变形与数值模拟计算变形对比
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| 位移类型 | 实际变形量/mm | 计算变形量/mm | 偏差量/mm | 偏差率/% |
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| 水平位移 | 295.5 | 250.0 | 45.5 | 15.4 |
| 竖向位移 | 776.4 | 700.0 | 76.4 | 9.8 |
| 总位移 | 844.9 | 735.9 | 109.0 | 12.9 |
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