Article(id=1149729527217172806, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1149729524209861062, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1672-6073.2025.01.016, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1717084800000, receivedDateStr=2024-05-31, revisedDate=1725465600000, revisedDateStr=2024-09-05, acceptedDate=null, acceptedDateStr=null, onlineDate=1752046480229, onlineDateStr=2025-07-09, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752046480229, onlineIssueDateStr=2025-07-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752046480229, creator=13701087609, updateTime=1752046480229, updator=13701087609, issue=Issue{id=1149729524209861062, tenantId=1146029695717560320, journalId=1146123302524792850, year='2025', volume='38', issue='1', pageStart='1', pageEnd='176', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1752046479512, creator=13701087609, updateTime=1753780104827, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1157000875844653181, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1149729524209861062, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1157000875844653182, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1149729524209861062, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=120, endPage=128, ext={EN=ArticleExt(id=1149729527582077271, articleId=1149729527217172806, tenantId=1146029695717560320, journalId=1146123302524792850, language=EN, title=Study of Deformation Control Measures for Concealed Underground Tunnels in Loess Areas Through Existing Stations in Close Proximity, columnId=1152669336394183038, journalTitle=Urban Rapid Rail Transit, columnName=Civil Engineering Technology, runingTitle=null, highlight=null, articleAbstract=
Aiming at the problem of excessive settlement of the station caused by the new tunnel close to the existing station, relying on the project of Xi'an Metro Line 8 close to the Convention and Exhibition Center Station of Line 2, the numerical simulation and onsite monitoring are used to analyze the control effect of various control measures on the deformation of the existing station during the construction of the underpass. The recommended values of construction parameters of the tunnel in the loess area are given. The results show that: (1) The construction method and excavation footage have obvious effect on the deformation control of the station when it is close to the underpass. After the construction method is adjusted from the upper and lower step method to the onsite CRD method, the maximum settlement of the station is reduced by 50%. After the excavation footage is adjusted from 1.5 m to 0.5 m, the maximum settlement of the station is reduced by 30%. (2) The staggered distance between the upper and lower pilot tunnels and the erection of temporary steel support have a weak effect on the deformation control of the station, which can be appropriately adjusted according to the engineering geology and onsite monitoring. (3) Based on the project, the construction scheme of onsite CRD method +0.5 m excavation footage +5 m singleside cavern upper and lower guide hole staggered distance +5 m spacing temporary steel support is adopted. The onsite monitoring data are basically the same as the deformation law obtained by numerical calculation. The maximum settlement of the station side wall, ballast bed and track is 3.76, 2.91, 2.51 mm respectively, and the maximum differential settlement at the deformation joint is 3.54 mm, which meets the requirements of the station deformation control standard.
, correspAuthors=Fulong ZHEN, 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=Long CHENG, Zhipeng TAN, Shenzhou HUANGFU, Fenggang HE, Yaxu HAN, Bin GAO, Fulong ZHEN), CN=ArticleExt(id=1149729559911773175, articleId=1149729527217172806, tenantId=1146029695717560320, journalId=1146123302524792850, language=CN, title=黄土区地铁暗挖隧道密贴下穿既有车站变形控制措施研究, columnId=1152669336603898239, journalTitle=都市快轨交通, columnName=土建技术, runingTitle=null, highlight=null, articleAbstract=
针对黄土地区新建地铁暗挖隧道密贴下穿既有车站,引起车站沉降过大的问题,依托西安地铁8号线密贴下穿2号线会展中心站工程,采用数值模拟与现场监测的方式,分析下穿施工时各项控制措施对既有车站变形的控制效果,给出了黄土区暗挖隧道密贴下穿既有车站施工参数建议值。研究结果表明:密贴下穿时,施工工法和开挖进尺对车站变形控制效果较为关键,施工工法从上下台阶法调整为现场 CRD 法后,车站最大沉降减少50%;开挖进尺从1.5m 调整为0.5 m后,车站最大沉降减少30%。上下导洞错距和临时钢支撑架设对车站变形控制效果较弱,可依据工程地质与现场监测情况进行适当调整。依托工程采用现场CRD法+0.5m开挖进尺+5m单侧洞室上下导洞错距+5m间距临时钢支撑施工方案,现场监测数据与数值计算得到的变形规律基本相同,车站侧墙、道床与轨道最大沉降分别为3.76、2.91、2.51 mm,变形缝处最大差异沉降为3.54mm,均符合车站变形控制标准要求。
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城市轨道交通设施运营监测技术规范第3部分:隧道: GB/T39559.3-2020[S]. 北京: 中国标准出版社,
2020., articleTitle=null, refAbstract=null)], funds=[Fund(id=1154051014123573732, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, awardId=2024KJX−53, language=CN, fundingSource=陕西省科学技术研究发展计划项目(2024KJX−53), fundOrder=null, country=null), Fund(id=1154051014194876903, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, awardId=XADTKY001, language=CN, fundingSource=中铁电气化局集团有限公司铁路工程公司科研项目(XADTKY001), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1154051008121524554, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, xref=1, ext=[AuthorCompanyExt(id=1154051008129913163, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, companyId=1154051008121524554, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 Railway Engineering Company China Railway Electrification Bureau Group Co., Ltd. Beijing 100071), AuthorCompanyExt(id=1154051008138301772, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, companyId=1154051008121524554, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 中铁电气化局集团有限公司 铁路工程公司 北京 100071)]), AuthorCompany(id=1154051008201216335, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, xref=2, ext=[AuthorCompanyExt(id=1154051008209604944, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, companyId=1154051008201216335, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 School of Highway Chang'an University Xi'an 710064), AuthorCompanyExt(id=1154051008213799249, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, companyId=1154051008201216335, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 长安大学 公路学院 西安 710064)])], figs=[ArticleFig(id=1154051011682488731, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=EN, label=Figure 1, caption=
A plane position diagram of the newly built Line 8 underneath the existing Line 2 Convention and Exhibition Center Station, figureFileSmall=3jWsSrXaO44IcmFvVlkEVw==, figureFileBig=o2k2bPBTR/gXY6isbHbzSg==, tableContent=null), ArticleFig(id=1154051011753791900, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=CN, label=图 1, caption=
新建 8 号线密贴下穿既有 2 号线会展中心站示意, figureFileSmall=3jWsSrXaO44IcmFvVlkEVw==, figureFileBig=o2k2bPBTR/gXY6isbHbzSg==, tableContent=null), ArticleFig(id=1154051011804123549, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=EN, label=Figure 2, caption=
Model diagram, figureFileSmall=y1j/lk8ap/JIujNkVQWfPg==, figureFileBig=OEa5SQUl7OstdivmQ3MZfA==, tableContent=null), ArticleFig(id=1154051011858649502, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=CN, label=图 2, caption=
模型示意, figureFileSmall=y1j/lk8ap/JIujNkVQWfPg==, figureFileBig=OEa5SQUl7OstdivmQ3MZfA==, tableContent=null), ArticleFig(id=1154051011904786847, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=EN, label=Figure 3, caption=
Excavation simulation process diagram, figureFileSmall=QuL0ZR4M+cmbiaUj4KTvdw==, figureFileBig=M5K1GtqApmCvcqXIfbxbZw==, tableContent=null), ArticleFig(id=1154051011955118496, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=CN, label=图 3, caption=
开挖模拟过程示意, figureFileSmall=QuL0ZR4M+cmbiaUj4KTvdw==, figureFileBig=M5K1GtqApmCvcqXIfbxbZw==, tableContent=null), ArticleFig(id=1154051012005450145, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=EN, label=Figure 4, caption=
The layout of the measuring points of the new right line tunnel close to the underpass section, figureFileSmall=rK1sCyMzbcf1bXGJrTkPfQ==, figureFileBig=M5cz4kQw+AJkVwCqUyzB/g==, tableContent=null), ArticleFig(id=1154051012055781794, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=CN, label=图 4, caption=
新建右线隧道密贴下穿段测点布置, figureFileSmall=rK1sCyMzbcf1bXGJrTkPfQ==, figureFileBig=M5cz4kQw+AJkVwCqUyzB/g==, tableContent=null), ArticleFig(id=1154051012114502051, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=EN, label=Figure 5, caption=
Structural deformation of the existing station under different construction methods, figureFileSmall=VFL/8PyB1fYWnxCzzIA6FQ==, figureFileBig=a0mHx/J5OE37CzKPMhkHRQ==, tableContent=null), ArticleFig(id=1154051012169028004, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=CN, label=图 5, caption=
不同施工工法下既有车站结构变形, figureFileSmall=VFL/8PyB1fYWnxCzzIA6FQ==, figureFileBig=a0mHx/J5OE37CzKPMhkHRQ==, tableContent=null), ArticleFig(id=1154051012236136872, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=EN, label=Figure 6, caption=
Structural deformation of the existing station under different excavation footage, figureFileSmall=yvrGbSrwDtkEPeX3Imv4tA==, figureFileBig=w1e+H+175n6NDpvsgq4wCA==, tableContent=null), ArticleFig(id=1154051012286468524, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=CN, label=图 6, caption=
不同开挖进尺下既有车站结构变形, figureFileSmall=yvrGbSrwDtkEPeX3Imv4tA==, figureFileBig=w1e+H+175n6NDpvsgq4wCA==, tableContent=null), ArticleFig(id=1154051012340994478, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=EN, label=Figure 7, caption=
Structural deformation of the existing station under different excavation footage, figureFileSmall=LMCRg3ZoyyR2iM/0T1241g==, figureFileBig=Z+kgUC73fTkxn0fL1alQTw==, tableContent=null), ArticleFig(id=1154051012403909040, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=CN, label=图 7, caption=
不同开挖进尺下既有车站结构变形, figureFileSmall=LMCRg3ZoyyR2iM/0T1241g==, figureFileBig=Z+kgUC73fTkxn0fL1alQTw==, tableContent=null), ArticleFig(id=1154051012458434995, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=EN, label=Figure 8, caption=
Structural deformation of the existing station under different temporary support schemes, figureFileSmall=vjAgCBen3nDN4JT4UVnwQQ==, figureFileBig=bQoh4P81QOxDYlnHeXqCvw==, tableContent=null), ArticleFig(id=1154051012512960949, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=CN, label=图 8, caption=
不同临时支撑方案下既有车站结构变形, figureFileSmall=vjAgCBen3nDN4JT4UVnwQQ==, figureFileBig=bQoh4P81QOxDYlnHeXqCvw==, tableContent=null), ArticleFig(id=1154051012580069815, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=EN, label=Figure 9, caption=
Site monitoring point layout of the existing station, figureFileSmall=EikYRYWzNlOFrg50BQCCaw==, figureFileBig=t1/2LqRGDXFZfYZ8FFUwFw==, tableContent=null), ArticleFig(id=1154051012626207161, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=CN, label=图 9, caption=
既有车站现场监测点布置, figureFileSmall=EikYRYWzNlOFrg50BQCCaw==, figureFileBig=t1/2LqRGDXFZfYZ8FFUwFw==, tableContent=null), ArticleFig(id=1154051012680733116, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=EN, label=Figure 10, caption=
Comparison of settlement deformation of the existing station, figureFileSmall=qdBLmwBbyG+fQzsDCge21A==, figureFileBig=TlWnftZicpuq9pt/MfjMBg==, tableContent=null), ArticleFig(id=1154051012760424895, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=CN, label=图 10, caption=
既有车站沉降变形对比, figureFileSmall=qdBLmwBbyG+fQzsDCge21A==, figureFileBig=TlWnftZicpuq9pt/MfjMBg==, tableContent=null), ArticleFig(id=1154051012814950850, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=EN, label=Figure 11, caption=
The settlement time history curve of DK20+211 track area of the exhibition center station, figureFileSmall=rt5EKFzlP6LkP2sq2C4Usg==, figureFileBig=H5cfiK0HVpQt0p/CBN00Yg==, tableContent=null), ArticleFig(id=1154051012894642629, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=CN, label=图 11, caption=
会展中心站 DK20+211 轨行区测点沉降时程曲线, figureFileSmall=rt5EKFzlP6LkP2sq2C4Usg==, figureFileBig=H5cfiK0HVpQt0p/CBN00Yg==, tableContent=null), ArticleFig(id=1154051012949168584, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=EN, label=Figure 12, caption=
The settlement time history curve of DK20+210 track area in the exhibition center station, figureFileSmall=4HBxoAACgLEHcJDnglKbUQ==, figureFileBig=T3qvNF7RgKyW5jtdIVBNmA==, tableContent=null), ArticleFig(id=1154051012999500235, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=CN, label=图 12, caption=
会展中心站 DK20+210 轨行区测点沉降时程曲线, figureFileSmall=4HBxoAACgLEHcJDnglKbUQ==, figureFileBig=T3qvNF7RgKyW5jtdIVBNmA==, tableContent=null), ArticleFig(id=1154051013066609102, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=EN, label=Table 1, caption=
The specific construction steps of the tunnel under the right line of the new Line 8, figureFileSmall=null, figureFileBig=null, tableContent=
| 图示 | 施工说明 |
| 第 1 步:隧道开挖至标准暗挖断面与 矩形断面接口处, 静力破除前方既有 2 号线围护桩, 并对 1、2 号导洞前方 土体进行 WSS 深孔注浆 |
| 第 2 步:开挖 1 号导洞,并施做初期 支护及中隔壁,开挖时掏除既有线路 底板与隧道初期支护间的土体,填充钢 筋混凝土,初支与既有线路垫层密贴 |
| 第 3 步:1 号导洞开挖 $5\mathrm{\;m}$ 后,开挖 2 号导洞,并施做初期支护及中隔壁,待 1、2 号导洞贯通,临时封端 |
| 第 4 步:拆除水平中隔壁,铺设 1、2 号导洞室防水层,浇筑侧墙及部分顶、 底板结构,环向分 2 次施工,纵向每 段 $4 \sim 6\mathrm{\;m}$ ,二衬混凝土达到强度后, 拆除模板,并架设临时钢支撑 |
| 第 5 步:静力破除 3、4 号导洞范围内 前方既有 2 号线围护桩,并对 3、4 号 导洞前方土体进行 WSS 深孔注浆 |
| 第 6 步:开挖 3 号导洞,并施做初期 支护及临时仰拱,开挖时掏除既有线 路底板与隧道初期支护间的土体,填 充钢筋混凝土,初支与既有线路垫层 密贴 |
| 第 7 步:3 号导洞开挖 $5\mathrm{\;m}$ 后,开挖 4 号导洞,并施做初期支护,待 3、4 号 导洞贯通,临时封端 |
| 第 8 步:拆除水平及竖向临时中隔壁, 铺设 3、4 号洞室防水层,浇筑侧墙及 部分顶、底板结构, 环向分 2 次施工, 纵向每段 $4 \sim 6\mathrm{\;m}$ ,二衬混凝土达到强 度后,拆除模板 |
| 第 9 步:根据监测情况拆除临时钢支 撑 (建议一次性拆除长度不超过 $6\mathrm{\;m}$ ), 下穿段隧道施工完成 |
), ArticleFig(id=1154051013137912272, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=CN, label=表 1, caption=
新建 8 号线右线下穿段隧道具体施工步序, figureFileSmall=null, figureFileBig=null, tableContent=
| 图示 | 施工说明 |
| 第 1 步:隧道开挖至标准暗挖断面与 矩形断面接口处, 静力破除前方既有 2 号线围护桩, 并对 1、2 号导洞前方 土体进行 WSS 深孔注浆 |
| 第 2 步:开挖 1 号导洞,并施做初期 支护及中隔壁,开挖时掏除既有线路 底板与隧道初期支护间的土体,填充钢 筋混凝土,初支与既有线路垫层密贴 |
| 第 3 步:1 号导洞开挖 $5\mathrm{\;m}$ 后,开挖 2 号导洞,并施做初期支护及中隔壁,待 1、2 号导洞贯通,临时封端 |
| 第 4 步:拆除水平中隔壁,铺设 1、2 号导洞室防水层,浇筑侧墙及部分顶、 底板结构,环向分 2 次施工,纵向每 段 $4 \sim 6\mathrm{\;m}$ ,二衬混凝土达到强度后, 拆除模板,并架设临时钢支撑 |
| 第 5 步:静力破除 3、4 号导洞范围内 前方既有 2 号线围护桩,并对 3、4 号 导洞前方土体进行 WSS 深孔注浆 |
| 第 6 步:开挖 3 号导洞,并施做初期 支护及临时仰拱,开挖时掏除既有线 路底板与隧道初期支护间的土体,填 充钢筋混凝土,初支与既有线路垫层 密贴 |
| 第 7 步:3 号导洞开挖 $5\mathrm{\;m}$ 后,开挖 4 号导洞,并施做初期支护,待 3、4 号 导洞贯通,临时封端 |
| 第 8 步:拆除水平及竖向临时中隔壁, 铺设 3、4 号洞室防水层,浇筑侧墙及 部分顶、底板结构, 环向分 2 次施工, 纵向每段 $4 \sim 6\mathrm{\;m}$ ,二衬混凝土达到强 度后,拆除模板 |
| 第 9 步:根据监测情况拆除临时钢支 撑 (建议一次性拆除长度不超过 $6\mathrm{\;m}$ ), 下穿段隧道施工完成 |
), ArticleFig(id=1154051013200826834, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=EN, label=Table 2, caption=
Physical and mechanical parameters of soil layer, figureFileSmall=null, figureFileBig=null, tableContent=
| 地层名称 | 压缩模量/ MPa | 泊松 比 | 密度/ | 黏聚力/ | 摩擦 角 | 埋深/ m |
| 素填土 | 6.0 | 0.35 | 1.56 | 15 | 16.0 | 1.5 |
| 新黄土 | 6.6 | 0.30 | 1.65 | 24 | 23.0 | 6.0 |
| 古土壤 | 7.3 | 0.29 | 1.85 | 32 | 23.0 | 4.0 |
| 老黄土 | 14.6 | 0.29 | 1.70 | 29 | 23.0 | 1.0 |
| 老黄土(水下) | 10.0 | 0.30 | 1.98 | 34 | 22.0 | 8.0 |
| 古土壤(水下) | 15.1 | 0.28 | 1.98 | 35 | 22.0 | 13.5 |
| 粉质土 | 19.5 | 0.28 | 2.00 | 37 | 22.0 | 26.5 |
), ArticleFig(id=1154051013272130004, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=CN, label=表 2, caption=
土层物理力学参数, figureFileSmall=null, figureFileBig=null, tableContent=
| 地层名称 | 压缩模量/ MPa | 泊松 比 | 密度/ | 黏聚力/ | 摩擦 角 | 埋深/ m |
| 素填土 | 6.0 | 0.35 | 1.56 | 15 | 16.0 | 1.5 |
| 新黄土 | 6.6 | 0.30 | 1.65 | 24 | 23.0 | 6.0 |
| 古土壤 | 7.3 | 0.29 | 1.85 | 32 | 23.0 | 4.0 |
| 老黄土 | 14.6 | 0.29 | 1.70 | 29 | 23.0 | 1.0 |
| 老黄土(水下) | 10.0 | 0.30 | 1.98 | 34 | 22.0 | 8.0 |
| 古土壤(水下) | 15.1 | 0.28 | 1.98 | 35 | 22.0 | 13.5 |
| 粉质土 | 19.5 | 0.28 | 2.00 | 37 | 22.0 | 26.5 |
), ArticleFig(id=1154051013335044566, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=EN, label=Table 3, caption=
Mechanical parameters of supporting structure, figureFileSmall=null, figureFileBig=null, tableContent=
| 材料类型 | 弹性模量/GPa | 泊松比 | 密度/ |
| 格栅钢架 | 210 | 0.30 | 7.85 |
| 临时钢支撑 | 210 | 0.30 | 7.85 |
| 既有车站(折算后) | 30.0 | 0.20 | 2.50 |
| 初期支护(折算后) | 31.5 | 0.20 | 2.50 |
| 二次衬砌(折算后) | 33.5 | 0.20 | 2.50 |
), ArticleFig(id=1154051013393764824, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=CN, label=表 3, caption=
支护结构力学参数, figureFileSmall=null, figureFileBig=null, tableContent=
| 材料类型 | 弹性模量/GPa | 泊松比 | 密度/ |
| 格栅钢架 | 210 | 0.30 | 7.85 |
| 临时钢支撑 | 210 | 0.30 | 7.85 |
| 既有车站(折算后) | 30.0 | 0.20 | 2.50 |
| 初期支护(折算后) | 31.5 | 0.20 | 2.50 |
| 二次衬砌(折算后) | 33.5 | 0.20 | 2.50 |
), ArticleFig(id=1154051013452485081, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=EN, label=Table 4, caption=
Physical and mechanical parameters of contact surface, figureFileSmall=null, figureFileBig=null, tableContent=
| 接触面类型 | 法向刚度/ (GPa/m) | 切向刚度/ | 黏聚力/ | 摩擦角/ (°) |
| 变形缝接触 | 20 | 20 | 5 | 2 |
| 土体-结构接触 | 20 | 20 | 20 | 18 |
), ArticleFig(id=1154051013511205338, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=CN, label=表 4, caption=
接触面物理力学参数, figureFileSmall=null, figureFileBig=null, tableContent=
| 接触面类型 | 法向刚度/ (GPa/m) | 切向刚度/ | 黏聚力/ | 摩擦角/ (°) |
| 变形缝接触 | 20 | 20 | 5 | 2 |
| 土体-结构接触 | 20 | 20 | 20 | 18 |
), ArticleFig(id=1154051013565731291, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=EN, label=Table 5, caption=
Working condition design of construction method, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 施工工法 | 开挖进尺/m | 前后错距 |
| 工况 1 | 上下台阶法 | 0.5 | 上下台阶错距 ${10}\mathrm{\;m}$ |
| 工况 2 | CD 法 | 左右导洞错距 ${20}\mathrm{\;m}$ |
| 工况 3 | 现场 CRD 法 | 1、2 导洞错距 $5\mathrm{\;m}$ , 贯通后施作 3、4 导洞 |
), ArticleFig(id=1154051013616062940, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=CN, label=表 5, caption=
施工工法工况设计, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 施工工法 | 开挖进尺/m | 前后错距 |
| 工况 1 | 上下台阶法 | 0.5 | 上下台阶错距 ${10}\mathrm{\;m}$ |
| 工况 2 | CD 法 | 左右导洞错距 ${20}\mathrm{\;m}$ |
| 工况 3 | 现场 CRD 法 | 1、2 导洞错距 $5\mathrm{\;m}$ , 贯通后施作 3、4 导洞 |
), ArticleFig(id=1154051013674783197, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=EN, label=Table 6, caption=
Design of excavation footage condition, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 开挖进尺/m | 导洞错距 | 施工工法 |
| 工况 1 | 0.5 | 1、2 导洞错距 $5\mathrm{\;m}$ ,贯通后施 作 3、4 导洞 | 现场 CRD 法 |
| 工况 2 | 0.75 |
| 工况 3 | 1.0 |
| 工况 4 | 1.5 |
), ArticleFig(id=1154051013746086366, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=CN, label=表 6, caption=
开挖进尺工况设计, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 开挖进尺/m | 导洞错距 | 施工工法 |
| 工况 1 | 0.5 | 1、2 导洞错距 $5\mathrm{\;m}$ ,贯通后施 作 3、4 导洞 | 现场 CRD 法 |
| 工况 2 | 0.75 |
| 工况 3 | 1.0 |
| 工况 4 | 1.5 |
), ArticleFig(id=1154051013813195231, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=EN, label=Table 7, caption=
Upper and lower step stagger distance working condition design, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 上下台阶错距/m | 开挖进尺/m | 施工工法 |
| 工况 1 | 3 | 0.5 | 现场 CRD 法 |
| 工况 2 | 5 |
| 工况 3 | 7 |
| 工况 4 | 10 |
), ArticleFig(id=1154051013863526880, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=CN, label=表 7, caption=
上下台阶错距工况设计, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 上下台阶错距/m | 开挖进尺/m | 施工工法 |
| 工况 1 | 3 | 0.5 | 现场 CRD 法 |
| 工况 2 | 5 |
| 工况 3 | 7 |
| 工况 4 | 10 |
), ArticleFig(id=1154051013922247137, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=EN, label=Table 8, caption=
Temporary steel support working condition design, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 临时钢支撑方案 | 开挖 进尺/m | 导洞错距 | 施工 工法 |
| 工况 1 | 不加临时钢支撑 | 0.5 | 1、2 导洞错 $5\mathrm{\;m}$ ,贯通后施 作 3、4 导洞 | 现场 CRD 法 |
| 工况 2 | 临时钢支撑间距 $3\mathrm{\;m}$ |
| 工况 3 | 临时钢支撑间距 $5\mathrm{\;m}$ |
), ArticleFig(id=1154051013980967394, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729527217172806, language=CN, label=表 8, caption=
临时钢支撑工况设计, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 临时钢支撑方案 | 开挖 进尺/m | 导洞错距 | 施工 工法 |
| 工况 1 | 不加临时钢支撑 | 0.5 | 1、2 导洞错 $5\mathrm{\;m}$ ,贯通后施 作 3、4 导洞 | 现场 CRD 法 |
| 工况 2 | 临时钢支撑间距 $3\mathrm{\;m}$ |
| 工况 3 | 临时钢支撑间距 $5\mathrm{\;m}$ |
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