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This study examines shield direct cutting techniques on largediameter piles within the construction project linking Guanzhou Station to University Town North Station on the Guangzhou Metro Line 12. Focusing on piles with diameters of 1,200 mm and reinforcing bars with diameters of 25 mm and 28 mm, the research evaluates the efficacy of critical measures and the resultant quality of pile cutting within shield construction. Findings indicate that a cutter head configuration, incorporating a hob and a tearing knife, successfully penetrates concrete pile foundations containing rebar of the specified diameters. However, a challenge arises when a toothed hob attempts to sever the reinforcing bar directly. It is observed that the tearing knife's secondary action exerts adequate shear force to dissect the reinforcement at the precut location by the hob. Furthermore, employing a boring strategy characterized by a low advancement rate, high rotation speed, and consistent torque has proven to enhance the cutting process for both the pile body and its embedded steel bars. Additionally, the use of split hydraulic rebar shears delivers an improved response to the complications presented by intertwined steel bars within the shield machine's path.
, correspAuthors=Zhiyong YANG, 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=Zhiyong YANG, Jun YU, Jie LIU, Heng SUN), CN=ArticleExt(id=1149744613159781292, articleId=1149744592045654019, tenantId=1146029695717560320, journalId=1146123302524792850, language=CN, title=土压平衡盾构斜切大直径主筋桩群施工技术, columnId=1152669336603898239, journalTitle=都市快轨交通, columnName=土建技术, runingTitle=null, highlight=null, articleAbstract=
针对盾构直接切削大直径主筋桩群的工程难题,以广州地铁12号线官洲站—大学城北站区间工程为例,开展盾构直接切削桩径1200mm、主筋直径25mm和28mm桩群的实践研究,分析盾构施工关键措施、切桩效果。实践表明:滚刀和撕裂刀搭配的刀具配置具备切削主筋直径25mm和28mm 混凝土桩基的能力;镶齿滚刀难以直接切断钢筋,撕裂刀二次作用时对钢筋的剪切作用力可将滚刀切口位置切断;采用“低推速、高转速、稳扭矩”方式掘进可有效切断桩体及钢筋;采用分体式液压钢筋剪可较好处理盾构仓内缠绕钢筋。
, correspAuthors=杨志勇, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=T23Z6tLnxjIdz8dygS06aA==, magXml=Pwn6ziX2+vlDfwEOjPmZxA==, pdfUrl=null, pdf=Y1LGLwpLRPrsnCoFJ4B+2Q==, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=CRV3xTDoUyjbbp1sAyJBOw==, mapNumber=null, authorCompany=null, fund=null, authors=
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1 CCCC Second Harbour Engineering Co., Ltd. Wuhan 430040
2 Research and Development Center of Intelligent Manufacturing Technology for Transportation Infrastructure Wuhan 430040
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1 中交第二航务工程局有限公司 武汉 430040
2 交通运输行业交通基础设施智能制造技术研发中心 武汉 430040
3 长大桥梁建设施工技术交通行业重点实验室 武汉 430040, bio={"content":"
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1 CCCC Second Harbour Engineering Co., Ltd. Wuhan 430040), AuthorCompanyExt(id=1154040154445566958, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, companyId=1154040154114216940, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 中交第二航务工程局有限公司 武汉 430040)]), AuthorCompany(id=1154040154512675823, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, xref=2, ext=[AuthorCompanyExt(id=1154040154516870128, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, companyId=1154040154512675823, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2 交通运输行业交通基础设施智能制造技术研发中心 武汉 430040)]), AuthorCompany(id=1154040154571396082, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, xref=3, ext=[AuthorCompanyExt(id=1154040154575590387, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, companyId=1154040154571396082, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3 长大桥梁建设施工技术交通行业重点实验室 武汉 430040)])], figs=[ArticleFig(id=1154040158799253563, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=EN, label=Figure 1, caption=
Schematic of position relationship between pile foundation and tunnel, figureFileSmall=PQjtyjW1VZdfxwHSpTKjiA==, figureFileBig=SbLyw5SSMzToq64EehD5YQ==, tableContent=null), ArticleFig(id=1154040158841196604, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=CN, label=图 1, caption=
桩基与隧道位置关系示意, figureFileSmall=PQjtyjW1VZdfxwHSpTKjiA==, figureFileBig=SbLyw5SSMzToq64EehD5YQ==, tableContent=null), ArticleFig(id=1154040158887333949, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=EN, label=Figure 2, caption=
Geological section, figureFileSmall=0Fe7t2rHr+ta/I9hlgqycQ==, figureFileBig=IcN+tmIBQtwm6yFIVLPXRQ==, tableContent=null), ArticleFig(id=1154040158946054206, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=CN, label=图 2, caption=
地质断面, figureFileSmall=0Fe7t2rHr+ta/I9hlgqycQ==, figureFileBig=IcN+tmIBQtwm6yFIVLPXRQ==, tableContent=null), ArticleFig(id=1154040159000580159, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=EN, label=Figure 3, caption=
Schematic of cutter-head structure, figureFileSmall=Cv+94F5DD3OeKkh+oNd01g==, figureFileBig=pjCKD5SQDWrU0BhRccADIA==, tableContent=null), ArticleFig(id=1154040159134797888, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=CN, label=图 3, caption=
刀盘结构示意, figureFileSmall=Cv+94F5DD3OeKkh+oNd01g==, figureFileBig=pjCKD5SQDWrU0BhRccADIA==, tableContent=null), ArticleFig(id=1154040159206101057, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=EN, label=Figure 4, caption=
Schematic of disc cutter, figureFileSmall=/rySzfIrtWCHu6Gjmve8DQ==, figureFileBig=Ztg0wEZTqCilyZIOLhDs3Q==, tableContent=null), ArticleFig(id=1154040159273209922, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=CN, label=图 4, caption=
滚刀示意, figureFileSmall=/rySzfIrtWCHu6Gjmve8DQ==, figureFileBig=Ztg0wEZTqCilyZIOLhDs3Q==, tableContent=null), ArticleFig(id=1154040159327735875, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=EN, label=Figure 5, caption=
Schematic of cutting steel bars, figureFileSmall=ztxZQXWOsMHPgkcQHREV9Q==, figureFileBig=xWgg9P7cSc2DD9C6jJmPPw==, tableContent=null), ArticleFig(id=1154040159369678916, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=CN, label=图 5, caption=
仓内剪切钢筋示意, figureFileSmall=ztxZQXWOsMHPgkcQHREV9Q==, figureFileBig=xWgg9P7cSc2DD9C6jJmPPw==, tableContent=null), ArticleFig(id=1154040159432593477, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=EN, label=Figure 6, caption=
Pressure variation curve, figureFileSmall=APgSvAzzEXjvkJr3ufwzag==, figureFileBig=bn7ttlB3SN/4SBrd/Cq6vA==, tableContent=null), ArticleFig(id=1154040159474536518, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=CN, label=图 6, caption=
土仓压力变化, figureFileSmall=APgSvAzzEXjvkJr3ufwzag==, figureFileBig=bn7ttlB3SN/4SBrd/Cq6vA==, tableContent=null), ArticleFig(id=1154040159545839687, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=EN, label=Figure 7, caption=
Automatic exhaust device, figureFileSmall=zOjvHornKnfBhNZy3Fxz+Q==, figureFileBig=csgDX83W3nTKP8pwCMhP4Q==, tableContent=null), ArticleFig(id=1154040159650697288, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=CN, label=图 7, caption=
自动排气装置, figureFileSmall=zOjvHornKnfBhNZy3Fxz+Q==, figureFileBig=csgDX83W3nTKP8pwCMhP4Q==, tableContent=null), ArticleFig(id=1154040159726194761, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=EN, label=Figure 8, caption=
Soil-bucket estimation scale, figureFileSmall=7XdYE2KyklxgapOzTdhUxA==, figureFileBig=PZiTdvscXkuSMTfHykIvpQ==, tableContent=null), ArticleFig(id=1154040159780720714, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=CN, label=图 8, caption=
渣土斗估测刻度, figureFileSmall=7XdYE2KyklxgapOzTdhUxA==, figureFileBig=PZiTdvscXkuSMTfHykIvpQ==, tableContent=null), ArticleFig(id=1154040159818469451, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=EN, label=Figure 9, caption=
Total thrust and cutter-head torque variation, figureFileSmall=OCwA6OFpxHO+oyiYrDMc/w==, figureFileBig=nqoiAXHH+0zl8zjZ6EvztQ==, tableContent=null), ArticleFig(id=1154040159872995404, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=CN, label=图 9, caption=
盾构总推力和刀盘扭矩变化, figureFileSmall=OCwA6OFpxHO+oyiYrDMc/w==, figureFileBig=nqoiAXHH+0zl8zjZ6EvztQ==, tableContent=null), ArticleFig(id=1154040159935909965, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=EN, label=Figure 10, caption=
Change in propulsion speed and cutter-head speed, figureFileSmall=eDX/dhy2R9VnxZ3sKa40VQ==, figureFileBig=UZNXt3AXkYKfclJcN6GSXQ==, tableContent=null), ArticleFig(id=1154040159986241614, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=CN, label=图 10, caption=
盾构推进速度和刀盘转速变化, figureFileSmall=eDX/dhy2R9VnxZ3sKa40VQ==, figureFileBig=UZNXt3AXkYKfclJcN6GSXQ==, tableContent=null), ArticleFig(id=1154040160036573263, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=EN, label=Figure 11, caption=
Screw torque variation, figureFileSmall=3HjQgbqLdkpo7VCrlMHOHA==, figureFileBig=QDav0j0oGjHt4bezsiRCSA==, tableContent=null), ArticleFig(id=1154040160103682128, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=CN, label=图 11, caption=
螺旋机扭矩变化, figureFileSmall=3HjQgbqLdkpo7VCrlMHOHA==, figureFileBig=QDav0j0oGjHt4bezsiRCSA==, tableContent=null), ArticleFig(id=1154040160149819473, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=EN, label=Figure 12, caption=
Reinforcement cleaning of screw slag outlet, figureFileSmall=uJdt6iDCjzI13EhkbgbJkg==, figureFileBig=m55gAaB2vYIFAD1SRMZYew==, tableContent=null), ArticleFig(id=1154040160237899858, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=CN, label=图 12, caption=
螺旋机出渣口钢筋清理, figureFileSmall=uJdt6iDCjzI13EhkbgbJkg==, figureFileBig=m55gAaB2vYIFAD1SRMZYew==, tableContent=null), ArticleFig(id=1154040160292425811, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=EN, label=Figure 13, caption=
Wrapped steel bars of cutter-head, figureFileSmall=IYC8h0Vgt4f6V7RN3P1pDg==, figureFileBig=hx68UbhQce+EQgeJZauYpQ==, tableContent=null), ArticleFig(id=1154040160338563156, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=CN, label=图 13, caption=
刀盘上缠绕钢筋, figureFileSmall=IYC8h0Vgt4f6V7RN3P1pDg==, figureFileBig=hx68UbhQce+EQgeJZauYpQ==, tableContent=null), ArticleFig(id=1154040160380506197, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=EN, label=Figure 14, caption=
Cutting of steel bars, figureFileSmall=lfC+XUQJKUBuwbxwppIkMw==, figureFileBig=ifRLdwbkOFb+1xGSAKAI9Q==, tableContent=null), ArticleFig(id=1154040160510529623, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=CN, label=图 14, caption=
钢筋切口, figureFileSmall=lfC+XUQJKUBuwbxwppIkMw==, figureFileBig=ifRLdwbkOFb+1xGSAKAI9Q==, tableContent=null), ArticleFig(id=1154040160594415705, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=EN, label=Figure 15, caption=
Distance of cut in the reinforcement, figureFileSmall=Xoy5hmuwTGg5tix1lTUwyA==, figureFileBig=lYC2Cq5j/YmQ7E4nOLoarQ==, tableContent=null), ArticleFig(id=1154040160644747355, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=CN, label=图 15, caption=
钢筋切口距离, figureFileSmall=Xoy5hmuwTGg5tix1lTUwyA==, figureFileBig=lYC2Cq5j/YmQ7E4nOLoarQ==, tableContent=null), ArticleFig(id=1154040160695079005, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=EN, label=Figure 16, caption=
Proportion of 25-mm-diameter steel bars, figureFileSmall=ZJD2ws+yMQBekAk3hwUQkQ==, figureFileBig=vQU4iPcDjiKuKQXWOJGdbQ==, tableContent=null), ArticleFig(id=1154040160762187872, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=CN, label=图 16, caption=
直径 ${25}\mathrm{\;{mm}}$ 钢筋占比, figureFileSmall=ZJD2ws+yMQBekAk3hwUQkQ==, figureFileBig=vQU4iPcDjiKuKQXWOJGdbQ==, tableContent=null), ArticleFig(id=1154040160829296737, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=EN, label=Figure 17, caption=
Proportion of 28-mm-diameter steel bars, figureFileSmall=NeUSdbxpe2XQDHOo/BcN3w==, figureFileBig=+mlLEsEgav4WExZ0wt8fMw==, tableContent=null), ArticleFig(id=1154040160942542948, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=CN, label=图 17, caption=
直径 ${28}\mathrm{\;{mm}}$ 钢筋占比, figureFileSmall=NeUSdbxpe2XQDHOo/BcN3w==, figureFileBig=+mlLEsEgav4WExZ0wt8fMw==, tableContent=null), ArticleFig(id=1154040161030623334, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=EN, label=Figure 18, caption=
Wear of disc cutter, figureFileSmall=bKZesu1oqczkWXupu5jc/g==, figureFileBig=urhIQ7w0KNR4gkRAJh/4vw==, tableContent=null), ArticleFig(id=1154040161093537897, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=CN, label=图 18, caption=
刀具磨损情况, figureFileSmall=bKZesu1oqczkWXupu5jc/g==, figureFileBig=urhIQ7w0KNR4gkRAJh/4vw==, tableContent=null), ArticleFig(id=1154040161152258156, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=EN, label=Table 1, caption=
Retaining pile parameters, figureFileSmall=null, figureFileBig=null, tableContent=
| 桩型 | 主筋/ mm | 箍筋/ mm | 内箍/ mm | 桩长! m | 直径/ m | 主筋 数量/根 |
| A 型桩 | ${\phi 25}$ | ${\phi 10}@{200}$ | ${\phi 20}@{2000}$ | 20.3 | 1.2 | 26 |
| B 型桩 | ${\phi 28}$ | ${\phi 10}@{200}$ | ${\phi 20}@{2000}$ | 20.3 | 1.2 | 28 |
), ArticleFig(id=1154040161223561326, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=CN, label=表 1, caption=
围护桩参数, figureFileSmall=null, figureFileBig=null, tableContent=
| 桩型 | 主筋/ mm | 箍筋/ mm | 内箍/ mm | 桩长! m | 直径/ m | 主筋 数量/根 |
| A 型桩 | ${\phi 25}$ | ${\phi 10}@{200}$ | ${\phi 20}@{2000}$ | 20.3 | 1.2 | 26 |
| B 型桩 | ${\phi 28}$ | ${\phi 10}@{200}$ | ${\phi 20}@{2000}$ | 20.3 | 1.2 | 28 |
), ArticleFig(id=1154040161282281585, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=EN, label=Table 2, caption=
Statistics on quantity of cutting-pile reinforcements, figureFileSmall=null, figureFileBig=null, tableContent=
| 切削桩体 顺序编号 | 钢筋长度/m |
| $\phi $25 | $\phi $28 | $\phi $20 | $\phi $10 |
| 1 | 4.4 | - | 0.6 | 0.8 |
| 2 | 35.5 | - | 2.9 | 15.5 |
| 3 | 61.7 | - | 4.4 | 30.8 |
| 4 | - | 74.0 | 6.3 | 37.9 |
| 5 | - | 77.3 | 6.3 | 40.8 |
| 6 | - | 72.6 | 6.3 | 38.3 |
| 7 | - | 63.8 | 4.6 | 31.7 |
| 8 | - | 22.4 | 1.9 | 9.6 |
), ArticleFig(id=1154040161361973363, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=CN, label=表 2, caption=
切削桩体理论钢筋长度统计, figureFileSmall=null, figureFileBig=null, tableContent=
| 切削桩体 顺序编号 | 钢筋长度/m |
| $\phi $25 | $\phi $28 | $\phi $20 | $\phi $10 |
| 1 | 4.4 | - | 0.6 | 0.8 |
| 2 | 35.5 | - | 2.9 | 15.5 |
| 3 | 61.7 | - | 4.4 | 30.8 |
| 4 | - | 74.0 | 6.3 | 37.9 |
| 5 | - | 77.3 | 6.3 | 40.8 |
| 6 | - | 72.6 | 6.3 | 38.3 |
| 7 | - | 63.8 | 4.6 | 31.7 |
| 8 | - | 22.4 | 1.9 | 9.6 |
), ArticleFig(id=1154040161424887926, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=EN, label=Table 3, caption=
Formation properties, figureFileSmall=null, figureFileBig=null, tableContent=
| 土层名称 | 颜色 | 土层描述 | 水文地 质特征 | 标贯击数 (击/30 cm) |
| <5Z-2>硬 塑状砂质 黏性土层 | 褐红色、 棕黄色 | 硬塑,由混合花岗岩风 化残积而成, 粒径大于 $2\mathrm{\;{mm}}$ ,占 ${10}\% \sim {15}\%$ , 遇水易软化、崩解 | 硬塑, 富水性 差,透 水性弱 | 30.3 |
| <6Z>全风 化混合 花岗岩 | 灰黄色、 褐红色、 黄褐色 | 原岩组织结构基本破 坏, 仅见原岩外观, 有 残余结构强度, 岩芯砂 土状,手掰易碎,遇水 易软化、崩解 | 硬塑- 坚硬。 富水性 差,透 水性弱 | 49.3 |
), ArticleFig(id=1154040161479413879, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=CN, label=表 3, caption=
地层特性, figureFileSmall=null, figureFileBig=null, tableContent=
| 土层名称 | 颜色 | 土层描述 | 水文地 质特征 | 标贯击数 (击/30 cm) |
| <5Z-2>硬 塑状砂质 黏性土层 | 褐红色、 棕黄色 | 硬塑,由混合花岗岩风 化残积而成, 粒径大于 $2\mathrm{\;{mm}}$ ,占 ${10}\% \sim {15}\%$ , 遇水易软化、崩解 | 硬塑, 富水性 差,透 水性弱 | 30.3 |
| <6Z>全风 化混合 花岗岩 | 灰黄色、 褐红色、 黄褐色 | 原岩组织结构基本破 坏, 仅见原岩外观, 有 残余结构强度, 岩芯砂 土状,手掰易碎,遇水 易软化、崩解 | 硬塑- 坚硬。 富水性 差,透 水性弱 | 49.3 |
), ArticleFig(id=1154040161550717048, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=EN, label=Table 4, caption=
Comparison of reinforcement cutting-tool effects, figureFileSmall=null, figureFileBig=null, tableContent=
| 工具名称 | 工具构造 | 工具尺寸 | 仓内作业 适应性 | 剪断 钢筋用时/min | 作业安全性 |
| 分体式液压 钢筋剪 | 轻型手动液压泵、钢筋 剪、液压管 | 液压泵尺寸约 ${51}\mathrm{\;{cm}} \times {16}\mathrm{\;{cm}} \times {13}\mathrm{\;{cm}}$ , 约 ${9.5}\mathrm{\;{kg}}$ ; 钢筋剪尺寸约 ${37}\mathrm{\;{cm}} \times$ ${13}\mathrm{\;{cm}} \times 9\mathrm{\;{cm}}$ ,重约 ${5.5}\mathrm{\;{kg}}$ | 适合,人工 施加动力 | 约 2 | 液压泵可放置在人仓内便于人工 作业,钢筋剪夹住钢筋后无需人员 在土仓内,安全性能高 |
| 整体式液压 钢筋剪 | 液压泵与钢筋剪为一个 整体 | 尺寸约 ${47}\mathrm{\;{cm}} \times {15}\mathrm{\;{cm}} \times 9\mathrm{\;{cm}}$ ,重约 6.5 kg | 适合,人工 施加动力 | 约 5 | 需要人员在土仓内施加动力,仓内 空间狭小、湿滑,安全性低 |
| 气动 砂轮机 | 砂轮片、砂轮机、气管 | 尺寸约 ${18}\mathrm{\;{cm}} \times {10}\mathrm{\;{cm}} \times 8\mathrm{\;{cm}}$ ,重约 1 kg | 适合,仓 内接高压 气源 | 约 1 | 需要人员在土仓内作业,仓内空间 狭小、湿滑, 且切割时会产生大量 火花,安全性低 |
), ArticleFig(id=1154040161609437306, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=CN, label=表 4, caption=
钢筋剪切工具效果对比, figureFileSmall=null, figureFileBig=null, tableContent=
| 工具名称 | 工具构造 | 工具尺寸 | 仓内作业 适应性 | 剪断 钢筋用时/min | 作业安全性 |
| 分体式液压 钢筋剪 | 轻型手动液压泵、钢筋 剪、液压管 | 液压泵尺寸约 ${51}\mathrm{\;{cm}} \times {16}\mathrm{\;{cm}} \times {13}\mathrm{\;{cm}}$ , 约 ${9.5}\mathrm{\;{kg}}$ ; 钢筋剪尺寸约 ${37}\mathrm{\;{cm}} \times$ ${13}\mathrm{\;{cm}} \times 9\mathrm{\;{cm}}$ ,重约 ${5.5}\mathrm{\;{kg}}$ | 适合,人工 施加动力 | 约 2 | 液压泵可放置在人仓内便于人工 作业,钢筋剪夹住钢筋后无需人员 在土仓内,安全性能高 |
| 整体式液压 钢筋剪 | 液压泵与钢筋剪为一个 整体 | 尺寸约 ${47}\mathrm{\;{cm}} \times {15}\mathrm{\;{cm}} \times 9\mathrm{\;{cm}}$ ,重约 6.5 kg | 适合,人工 施加动力 | 约 5 | 需要人员在土仓内施加动力,仓内 空间狭小、湿滑,安全性低 |
| 气动 砂轮机 | 砂轮片、砂轮机、气管 | 尺寸约 ${18}\mathrm{\;{cm}} \times {10}\mathrm{\;{cm}} \times 8\mathrm{\;{cm}}$ ,重约 1 kg | 适合,仓 内接高压 气源 | 约 1 | 需要人员在土仓内作业,仓内空间 狭小、湿滑, 且切割时会产生大量 火花,安全性低 |
), ArticleFig(id=1154040161651380348, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=EN, label=Table 5, caption=
Statistics of steel bars cut by shield tunneling, figureFileSmall=null, figureFileBig=null, tableContent=
| 钢筋切 断长度/ mm | 直径 25mm 钢筋 | 直径 28 mm 钢筋 |
| 原桩理论切削 | 盾构切削后 | 原桩理论切削 | 盾构切削后 |
| 根数/ 根 | 占比/ % | 根数/ 根 | 占比/ % | 根数/ 根 | 占比/ % | 根数/ 根 | 占比/ % |
| $\leq {100}$ | 0 | 0.0 | 2 | 8.0 | 2 | 1.5 | 2 | 5.3 |
| 100~ 400 | 4 | 7.1 | 9 | 36.0 | 2 | 1.5 | 16 | 42.1 |
| 400~ 700 | 5 | 8.9 | 8 | 32.0 | 2 | 1.5 | 8 | 21.1 |
| 700~ 1 000 | 4 | 7.1 | 4 | 16.0 | 4 | 3.0 | 8 | 21.1 |
| 1000~ 1 300 | 4 | 7.1 | 1 | 4.0 | 4 | 3.0 | 3 | 7.9 |
| 1 300~ 1 600 | 6 | 10.7 | 1 | 4.0 | 6 | 4.5 | 1 | 2.6 |
| 1 600~ 2 800 | 33 | 58.9 | 0 | 0.0 | 113 | 85.0 | 0 | 0.0 |
), ArticleFig(id=1154040161697517694, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149744592045654019, language=CN, label=表 5, caption=
盾构切削钢筋统计, figureFileSmall=null, figureFileBig=null, tableContent=
| 钢筋切 断长度/ mm | 直径 25mm 钢筋 | 直径 28 mm 钢筋 |
| 原桩理论切削 | 盾构切削后 | 原桩理论切削 | 盾构切削后 |
| 根数/ 根 | 占比/ % | 根数/ 根 | 占比/ % | 根数/ 根 | 占比/ % | 根数/ 根 | 占比/ % |
| $\leq {100}$ | 0 | 0.0 | 2 | 8.0 | 2 | 1.5 | 2 | 5.3 |
| 100~ 400 | 4 | 7.1 | 9 | 36.0 | 2 | 1.5 | 16 | 42.1 |
| 400~ 700 | 5 | 8.9 | 8 | 32.0 | 2 | 1.5 | 8 | 21.1 |
| 700~ 1 000 | 4 | 7.1 | 4 | 16.0 | 4 | 3.0 | 8 | 21.1 |
| 1000~ 1 300 | 4 | 7.1 | 1 | 4.0 | 4 | 3.0 | 3 | 7.9 |
| 1 300~ 1 600 | 6 | 10.7 | 1 | 4.0 | 6 | 4.5 | 1 | 2.6 |
| 1 600~ 2 800 | 33 | 58.9 | 0 | 0.0 | 113 | 85.0 | 0 | 0.0 |
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