Article(id=1149773883013816411, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149773869357167407, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2404846, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1719504000000, receivedDateStr=2024-06-28, revisedDate=1738857600000, revisedDateStr=2025-02-07, acceptedDate=null, acceptedDateStr=null, onlineDate=1752057055475, onlineDateStr=2025-07-09, pubDate=1746633600000, pubDateStr=2025-05-08, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752057055475, onlineIssueDateStr=2025-07-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752057055475, creator=13701087609, updateTime=1752057055475, updator=13701087609, issue=Issue{id=1149773869357167407, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='13', pageStart='5273', pageEnd='5704', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1752057052207, creator=13701087609, updateTime=1768456769392, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1218559268744253990, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149773869357167407, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1218559268744253991, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149773869357167407, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=5618, endPage=5625, ext={EN=ArticleExt(id=1149773883408080991, articleId=1149773883013816411, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Discrete Element Analysis of Soil Deformation Caused by Pilot Tunnel Construction in Loess Area, columnId=1156262728772735295, journalTitle=Science Technology and Engineering, columnName=Papers·Traffics and Transportations, runingTitle=null, highlight=null, articleAbstract=
The construction of the pile-beam-arch-method(PBA method) exhibits a cluster-tunnel effect, which readily induces surface subsidence. To achieve safe construction and minimize surface settlement, the MatDEM discrete element software was employed to simulate the construction process of the PBA method. The potential deformation mechanism and metastable microstructure of soil were considered in the training of formation micromechanics parameters, and the variation rule of surrounding rock pressure under multi-guide tunnel construction was summarized. The research findings indicate that when adopting a construction sequence of “top-to-bottom and sides-to-center,” surface settlement is relatively small. When using the “center-to-sides” approach, the initially excavated central pilot tunnel leads to the formation of slip planes at 1.5 times the tunnel width. Conversely, with the “sides-to-center” method, the initially excavated side tunnels provide vertical support to the inner soil, reducing the surface settlement caused by the subsequent excavation of the central tunnel. During the construction of the upper pilot tunnels, the surrounding rock pressure at the vault and arch waist exhibits an increasing trend. The construction of the lower pilot tunnels results in stress concentration at the vault and inner arch waist of the upper tunnels. Approximately 72.65% of surface settlement occurs during the construction of the lower pilot tunnels, and the adoption of staggered construction can significantly mitigate soil disturbance.
, correspAuthors=Xuan-rong ZHENG, 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, authorCompany=null, fund=null, authors=null, authorsList=Shuai-liang LI, Xuan-rong ZHENG, Xue-xuan SHANG, Yan-jun XU, Wei LI), CN=ArticleExt(id=1149773917109314035, articleId=1149773883013816411, tenantId=1146029695717560320, journalId=1146123166801305609, language=CN, title=黄土地区导洞施工引起土体变形的离散元分析, columnId=1156262730664366426, journalTitle=科学技术与工程, columnName=论文·交通运输, runingTitle=null, highlight=null, articleAbstract=
洞桩法施工存在群洞效应,极易引起地表塌陷,为了达到安全施工、减小地表沉降的目的,利用MatDEM离散元软件,对洞桩法施工过程进行模拟。对地层微观力学参数进行训练时,考虑了土体的变形潜在机理和土体的亚稳态微观结构,总结了多导洞施工下围岩压力的变化规律。研究成果表明:采用“先上后下、先边后中”的施工顺序时,地表沉降较小;采用“先中后边”时,先挖的中间导洞会使其1.5倍洞宽处发生滑移面分层;采用“先边后中”时,先挖的边洞会产生土供对内侧土体产生竖向支撑作用,降低后挖中洞所产生的地表沉降。上导洞施工时,拱顶、拱腰处的围岩压力呈现增大趋势。下导洞施工导致上导洞拱顶和内侧拱腰处出现应力集中现象。72.65%的地表沉降发生在下导洞施工阶段,采用错距施工能明显缓解土体扰动。
, correspAuthors=郑选荣, authorNote=null, correspAuthorsNote=
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1 College of Architecture and Civil Engineering, Xi'an University of Science and Technology, Xi'an 710054, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1175114687877366552, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, authorId=1175114687692817173, language=CN, stringName=李帅良, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 西安科技大学建筑与土木工程学院, 西安 710054, bio={"content":"
李帅良(2000—),男,汉族,山东菏泽人,硕士研究生。研究方向:地下空间。E-mail:1157181839@qq.com。
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李帅良(2000—),男,汉族,山东菏泽人,硕士研究生。研究方向:地下空间。E-mail:1157181839@qq.com。
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Station structure section diagram and monitoring point layout, figureFileSmall=Pewib3Eq39Odgnn0koqeQg==, figureFileBig=BED/HdbXrMgd/xklpnm7Hg==, tableContent=null), ArticleFig(id=1175114689647362870, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=CN, label=图1, caption=
车站结构断面图与监测点布置, figureFileSmall=Pewib3Eq39Odgnn0koqeQg==, figureFileBig=BED/HdbXrMgd/xklpnm7Hg==, tableContent=null), ArticleFig(id=1175114689773191991, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=EN, label=Fig.2, caption=
Model material distribution map, figureFileSmall=oFc6/3Pk0ca+VmF/D45CqA==, figureFileBig=mSl/mgWIrno6QkYXB8qXnA==, tableContent=null), ArticleFig(id=1175114689836106552, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=CN, label=图2, caption=
模型材料分布图, figureFileSmall=oFc6/3Pk0ca+VmF/D45CqA==, figureFileBig=mSl/mgWIrno6QkYXB8qXnA==, tableContent=null), ArticleFig(id=1175114689907409721, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=EN, label=Fig.3, caption=
Simulated displacement diagram of working condition 1, figureFileSmall=ZzkKe+h7vusXpb8aTPSG4w==, figureFileBig=71qpPPa1eBR3gbLZnrHPNw==, tableContent=null), ArticleFig(id=1175114689987101498, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=CN, label=图3, caption=
工况1模拟位移图, figureFileSmall=ZzkKe+h7vusXpb8aTPSG4w==, figureFileBig=71qpPPa1eBR3gbLZnrHPNw==, tableContent=null), ArticleFig(id=1175114690066793275, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=EN, label=Fig.4, caption=
Working condition 2 simulated displacement diagram, figureFileSmall=959E63Y9avdgREmuREXPig==, figureFileBig=B/2f4rznNUKtyKY1DaYmwA==, tableContent=null), ArticleFig(id=1175114690142290748, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=CN, label=图4, caption=
工况2模拟位移图, figureFileSmall=959E63Y9avdgREmuREXPig==, figureFileBig=B/2f4rznNUKtyKY1DaYmwA==, tableContent=null), ArticleFig(id=1175114690205205309, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=EN, label=Fig.5, caption=
Simulation displacement diagram of surface subsidence, figureFileSmall=IKljma1sj29lkbscAQX98w==, figureFileBig=yV+rn1kYXkTtosYErwQMIQ==, tableContent=null), ArticleFig(id=1175114690272314174, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=CN, label=图5, caption=
地表沉降模拟位移图, figureFileSmall=IKljma1sj29lkbscAQX98w==, figureFileBig=yV+rn1kYXkTtosYErwQMIQ==, tableContent=null), ArticleFig(id=1175114690339423039, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=EN, label=Fig.6, caption=
Working condition 3 simulated displacement diagram, figureFileSmall=F6T5Hf3fPPsgdEao0EXxtg==, figureFileBig=gxy+Cnm5GPlFDhXt13nrgA==, tableContent=null), ArticleFig(id=1175114690414920512, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=CN, label=图6, caption=
工况3模拟位移图, figureFileSmall=F6T5Hf3fPPsgdEao0EXxtg==, figureFileBig=gxy+Cnm5GPlFDhXt13nrgA==, tableContent=null), ArticleFig(id=1175114690490417985, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=EN, label=Fig.7, caption=
Working condition 4 simulated displacement diagram, figureFileSmall=tw4Qjp6RgKY0K262bNsVHA==, figureFileBig=rlB1D4G15LF2Ah7FH6ye4Q==, tableContent=null), ArticleFig(id=1175114690574304066, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=CN, label=图7, caption=
工况4模拟位移图, figureFileSmall=tw4Qjp6RgKY0K262bNsVHA==, figureFileBig=rlB1D4G15LF2Ah7FH6ye4Q==, tableContent=null), ArticleFig(id=1175114690666578755, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=EN, label=Fig.8, caption=
Working condition 4 simulated displacement diagram, figureFileSmall=Kax7fBL3UM3RLN0UKmgQJw==, figureFileBig=Psqu3IVDW5fcSjlX9Z2jGg==, tableContent=null), ArticleFig(id=1175114690746270532, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=CN, label=图8, caption=
工况4模拟位移图, figureFileSmall=Kax7fBL3UM3RLN0UKmgQJw==, figureFileBig=Psqu3IVDW5fcSjlX9Z2jGg==, tableContent=null), ArticleFig(id=1175114690825962309, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=EN, label=Fig.9, caption=
Site monitoring schematic diagram of pilot tunnel, figureFileSmall=5C5XWtQToY9bDt9nfptsPw==, figureFileBig=GSuvyb5fQGSlERzVyM+uYg==, tableContent=null), ArticleFig(id=1175114690914042694, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=CN, label=图9, caption=
导洞现场监测示意图, figureFileSmall=5C5XWtQToY9bDt9nfptsPw==, figureFileBig=GSuvyb5fQGSlERzVyM+uYg==, tableContent=null), ArticleFig(id=1175114691002123079, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=EN, label=Fig.10, caption=
Comparative analysis of measured and calculated values of surface subsidence, figureFileSmall=+m5LRzrMiQDXHRiXFNIW0g==, figureFileBig=Gcltyk8ZAVL0aOl7uoFKGg==, tableContent=null), ArticleFig(id=1175114691065037640, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=CN, label=图10, caption=
地表沉降实测值和计算值对比分析, figureFileSmall=+m5LRzrMiQDXHRiXFNIW0g==, figureFileBig=Gcltyk8ZAVL0aOl7uoFKGg==, tableContent=null), ArticleFig(id=1175114691140535113, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=EN, label=Fig.11, caption=
Monitoring curve of contact pressure of surrounding rock of each pilot tunnel, figureFileSmall=FDje15DtWFRpOMgccDgs3Q==, figureFileBig=ej5+o1ANSqAOrF3bwai9rQ==, tableContent=null), ArticleFig(id=1175114691216032586, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=CN, label=图11, caption=
导洞围岩接触压力监测曲线, figureFileSmall=FDje15DtWFRpOMgccDgs3Q==, figureFileBig=ej5+o1ANSqAOrF3bwai9rQ==, tableContent=null), ArticleFig(id=1175114691283141451, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=EN, label=Table 1, caption=
Simulation training material parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
| 材料名称 | 弹性模量/ MPa | 泊松比 | 抗拉强度/ kPa | 抗压强度/ kPa | 内摩擦 因数 | 法向刚度系数/ (kN·m-1) | 切向刚度系数/ (kN·m-1) | 断裂位移/m | 初始抗剪力/ kN |
| 素填土 | 5 | 0.33 | 20 | 200 | 0.14 | 1.88×106 | 1.79×106 | 7.35×10-7 | 184.45 |
| 新黄土 | 13 | 0.28 | 21.4 | 200 | 0.42 | 2.25×106 | 1.66×106 | 3.78×10-6 | 66.71 |
| 古土壤 | 12.2 | 0.28 | 21.4 | 200 | 0.42 | 2.85×106 | 1.13×106 | 1.22×10-5 | 42.66 |
| 老黄土 | 21.1 | 0.28 | 21.4 | 200 | 0.44 | 2.34×106 | 1.54×106 | 6.74×10-15 | 39.13 |
| 初期支护 | 31.9 | 0.2 | 3.2 | 20 | 0.8 | 1.79×1010 | 3.08×109 | 0.012 8 | 487 000 |
), ArticleFig(id=1175114691375416140, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=CN, label=表1, caption=
模型训练参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 材料名称 | 弹性模量/ MPa | 泊松比 | 抗拉强度/ kPa | 抗压强度/ kPa | 内摩擦 因数 | 法向刚度系数/ (kN·m-1) | 切向刚度系数/ (kN·m-1) | 断裂位移/m | 初始抗剪力/ kN |
| 素填土 | 5 | 0.33 | 20 | 200 | 0.14 | 1.88×106 | 1.79×106 | 7.35×10-7 | 184.45 |
| 新黄土 | 13 | 0.28 | 21.4 | 200 | 0.42 | 2.25×106 | 1.66×106 | 3.78×10-6 | 66.71 |
| 古土壤 | 12.2 | 0.28 | 21.4 | 200 | 0.42 | 2.85×106 | 1.13×106 | 1.22×10-5 | 42.66 |
| 老黄土 | 21.1 | 0.28 | 21.4 | 200 | 0.44 | 2.34×106 | 1.54×106 | 6.74×10-15 | 39.13 |
| 初期支护 | 31.9 | 0.2 | 3.2 | 20 | 0.8 | 1.79×1010 | 3.08×109 | 0.012 8 | 487 000 |
), ArticleFig(id=1175114691543188301, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=EN, label=Table 2, caption=
Operation setting
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 先行开挖 | 后行开挖 |
| 工况1 | 内侧北2、3导洞 | 外侧北1、4导洞 |
| 工况2 | 外侧北1、4导洞 | 内侧北2、3导洞 |
| 工况3 | 下部两导洞 | 上部四导洞 |
| 工况4 | 上部四导洞 | 下部两导洞 |
), ArticleFig(id=1175114691631268686, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149773883013816411, language=CN, label=表2, caption=
工况设置
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 先行开挖 | 后行开挖 |
| 工况1 | 内侧北2、3导洞 | 外侧北1、4导洞 |
| 工况2 | 外侧北1、4导洞 | 内侧北2、3导洞 |
| 工况3 | 下部两导洞 | 上部四导洞 |
| 工况4 | 上部四导洞 | 下部两导洞 |
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