Article(id=1241777707369959593, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241777699996368955, articleNumber=null, orderNo=null, doi=10.3963/j.issn.1001-487X.2024.02.005, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1699977600000, receivedDateStr=2023-11-15, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1773992476550, onlineDateStr=2026-03-20, pubDate=1717171200000, pubDateStr=2024-06-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773992476550, onlineIssueDateStr=2026-03-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773992476550, creator=13701087609, updateTime=1773992476550, updator=13701087609, issue=Issue{id=1241777699996368955, tenantId=1146029695717560320, journalId=1240670690148397066, year='2024', volume='41', issue='2', pageStart='1', pageEnd='252', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773992474792, creator=13701087609, updateTime=1773992784144, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241778997575619516, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241777699996368955, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241778997575619517, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241777699996368955, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=32, endPage=39, ext={EN=ArticleExt(id=1241777709265785040, articleId=1241777707369959593, tenantId=1146029695717560320, journalId=1240670690148397066, language=EN, title=Field Test of Long Footage Burn Cut Blasting Excavation and Control of Overcut and Undercut in Medium Section Tunnel, columnId=1240702071733801442, journalTitle=Blasting, columnName=THEORETICAL AND TECHNOLOGICAL EXPLORATION, runingTitle=null, highlight=null, articleAbstract=
Due to the limitations in construction scope, blasting a medium-section tunnel is challenging as it often results in short circular footage and significant over and under excavation. To reduce costs and increase efficiency, it is essential to focus on long footage excavation and fine control of over and under excavation. In this study, a straight hole cutting blasting scheme was designed for a medium section tunnel project and 40 cycles of blasting excavation field tests were conducted. The results revealed that when designing the long footage blasting parameters for a medium section tunnel based on the blasting design manual, issues such as high block rate and uneven face frequently arise. However, by appropriately increasing the charge of the cut part (the proportion of charge of the cut part increased from 12.8% to 18.1% in our field test), better blasting effects were achieved. Additionally, by reducing the charge amount of peripheral holes and adjusting their distance from each other, smooth blasting effect was effectively ensured. During the field test, adjustments were made to the charge amount of peripheral holes based on preliminary design for blasting parameters. This resulted in good contour forming effects with a half-hole rate exceeding 90%. However, an average overcutting value of 18.6 cm was observed across all 40 excavation sections during the blasting cycle. The main cause for this overcutting was identified as platform irregularities along the contour line. To address this issue, it is necessary not only to reduce external drilling angles but also control platform width alongside reasonable parameter designs for surrounding holes. The straight hole cutting scheme proved compatible with three-arm rock drilling truck construction methods while enabling mechanized long-shot blasting excavations. Nevertheless, precise control over overcutting and undercutting remains challenging along with cost management during blast construction. It is necessary to optimize and improve the operation technology of drilling personnel and the management mode of site construction.
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DU Yu-xiang (1992-), male, Associate professor, Ph. D, mainly engaged in scientific research in engineering blasting, (E-mail)
duyuxiang@jhun.edu.cn.
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中等断面隧道受施工范围限制易导致爆破难度大,循环进尺短,超欠挖问题严重,长进尺开挖和超欠挖控制是降本增效的有效途径。基于某中等断面隧道工程设计了长进尺直孔掏槽爆破方案,进行了40个循环的爆破开挖现场试验,结果表明:(1)按照爆破手册设计中等断面隧道开挖爆破参数,往往大块率高,掌子面不平整,适当增加直孔掏槽孔单孔装药量(现场试验掏槽药量占比由12.8%增至18.1%),可获得较好的爆破效果;(2)在初步设计参数基础上调整了中等断面隧道周边孔单孔装药量,线装药密度最终确定为0.27 kg/m,轮廓成形效果好,半孔率达90%以上,现场40个爆破循环超挖平均值为18.6 cm,分析可知超挖量主要由轮廓线处留置错台造成,在超挖控制方面,除了周边孔参数的合理设计外,应在钻孔施工过程中尽可能减小错台宽度,从而降低超挖;(3)直孔掏槽方案能很好地匹配凿岩台车钻孔施工,实现机械化长进尺爆破开挖,但超欠挖精细控制和爆破施工成本控制是重难点问题,需从钻孔人员操作技术和现场施工管理模式方面进行优化提升。研究成果可为中等断面隧道机械化钻爆施工、长进尺爆破开挖与超欠挖精细控制设计和施工提供参考依据。
, correspAuthors=null, authorNote=null, correspAuthorsNote=
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龚伟毅(1989-),男,助理工程师,从事隧道与地下工程方面的研究工作,(E-mail)157705383@qq.com。
GONG Wei-yi (1989-), male, Assistant engineer, mainly engaged in tunnel and underground engineering research work, (E-mail) 157705383@qq.com.
, authorsList=龚伟毅, 姚颖康, 杜宇翔)}, authors=[Author(id=1241777718161904364, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=157705383@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241777718266761976, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, authorId=1241777718161904364, language=EN, stringName=Wei-yi GONG, firstName=Wei-yi, middleName=null, lastName=GONG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1.The 1st Engineeing Co., Ltd. of China Railway 12th Bureau Group, Xi'an 710038, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241777718367425286, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, authorId=1241777718161904364, language=CN, stringName=龚伟毅, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1.中铁十二局集团 第一工程有限公司,西安 710038, bio={"content":"
龚伟毅(1989-),男,助理工程师,从事隧道与地下工程方面的研究工作,(E-mail)157705383@qq.com。
GONG Wei-yi (1989-), male, Assistant engineer, mainly engaged in tunnel and underground engineering research work, (E-mail) 157705383@qq.com.
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龚伟毅(1989-),男,助理工程师,从事隧道与地下工程方面的研究工作,(E-mail)157705383@qq.com。
GONG Wei-yi (1989-), male, Assistant engineer, mainly engaged in tunnel and underground engineering research work, (E-mail) 157705383@qq.com.
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1.The 1st Engineeing Co., Ltd. of China Railway 12th Bureau Group, Xi'an 710038, China), AuthorCompanyExt(id=1241777717851525833, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, companyId=1241777717838942917, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.中铁十二局集团 第一工程有限公司,西安 710038)])]), Author(id=1241777718442922770, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, orderNo=1, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241777718631666466, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, authorId=1241777718442922770, language=EN, stringName=Ying-kang YAO, firstName=Ying-kang, middleName=null, lastName=YAO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2a, 2b, address=
2a.State Key Laboratory of Precision Blasting, Jianghan University, Wuhan 430056, China
2b.Hubei Key Laboratory of Blasting Engineering, Jianghan University, Wuhan 430056, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241777718744912688, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, authorId=1241777718442922770, language=CN, stringName=姚颖康, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2a, 2b, address=
2a.江汉大学 精细爆破国家重点实验室,武汉 430056
2b.江汉大学 湖北(武汉)爆炸与爆破技术研究院,武汉 430056, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1241777717927023315, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, xref=2a., ext=[AuthorCompanyExt(id=1241777717939606227, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, companyId=1241777717927023315, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2a.State Key Laboratory of Precision Blasting, Jianghan University, Wuhan 430056, China), AuthorCompanyExt(id=1241777717947994836, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, companyId=1241777717927023315, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2a.江汉大学 精细爆破国家重点实验室,武汉 430056)]), AuthorCompany(id=1241777718048658144, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, xref=2b., ext=[AuthorCompanyExt(id=1241777718057046753, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, companyId=1241777718048658144, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2b.Hubei Key Laboratory of Blasting Engineering, Jianghan University, Wuhan 430056, China), AuthorCompanyExt(id=1241777718065435362, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, companyId=1241777718048658144, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2b.江汉大学 湖北(武汉)爆炸与爆破技术研究院,武汉 430056)])]), Author(id=1241777718879130428, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=duyuxiang@jhun.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241777719017542479, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, authorId=1241777718879130428, language=EN, stringName=Yu-xiang DU, firstName=Yu-xiang, middleName=null, lastName=DU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2a, 2b, address=
2a.State Key Laboratory of Precision Blasting, Jianghan University, Wuhan 430056, China
2b.Hubei Key Laboratory of Blasting Engineering, Jianghan University, Wuhan 430056, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241777719260812127, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, authorId=1241777718879130428, language=CN, stringName=杜宇翔, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2a, 2b, address=
2a.江汉大学 精细爆破国家重点实验室,武汉 430056
2b.江汉大学 湖北(武汉)爆炸与爆破技术研究院,武汉 430056, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1241777717927023315, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, xref=2a., ext=[AuthorCompanyExt(id=1241777717939606227, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, companyId=1241777717927023315, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2a.江汉大学 精细爆破国家重点实验室,武汉 430056)]), AuthorCompany(id=1241777718048658144, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, xref=2b., ext=[AuthorCompanyExt(id=1241777718057046753, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, companyId=1241777718048658144, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2b.Hubei Key Laboratory of Blasting Engineering, Jianghan University, Wuhan 430056, China), AuthorCompanyExt(id=1241777718065435362, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, companyId=1241777718048658144, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2b.江汉大学 湖北(武汉)爆炸与爆破技术研究院,武汉 430056)])])], keywords=[Keyword(id=1241777719403418474, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=EN, orderNo=1, keyword=medium section tunnel), Keyword(id=1241777719499887477, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=EN, orderNo=2, keyword=burn cut), Keyword(id=1241777719608939388, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=EN, orderNo=3, keyword=long footage excavation), Keyword(id=1241777719734768518, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=EN, orderNo=4, keyword=over and under excavation control), Keyword(id=1241777719835431826, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=EN, orderNo=5, keyword=precise blasting), Keyword(id=1241777719927706524, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=CN, orderNo=1, keyword=中等断面隧道), Keyword(id=1241777720003204005, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=CN, orderNo=2, keyword=直孔掏槽), Keyword(id=1241777720091284397, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=CN, orderNo=3, keyword=长进尺开挖), Keyword(id=1241777720204530611, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=CN, orderNo=4, keyword=超欠挖控制), Keyword(id=1241777720309388216, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=CN, orderNo=5, keyword=精细爆破)], refs=[Reference(id=1241777725015396495, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, doi=null, pmid=null, pmcid=null, year=2009, volume=174, issue=4, pageStart=57, pageEnd=59, 64, url=null, language=null, rfNumber=[1], rfOrder=0, authorNames=王述磊, journalName=铁道建筑技术, refType=null, unstructuredReference=王述磊. 中等断面隧道爆破技术探讨[J].
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2a.江汉大学 精细爆破国家重点实验室,武汉 430056)]), AuthorCompany(id=1241777718048658144, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, xref=2b., ext=[AuthorCompanyExt(id=1241777718057046753, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, companyId=1241777718048658144, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2b.Hubei Key Laboratory of Blasting Engineering, Jianghan University, Wuhan 430056, China), AuthorCompanyExt(id=1241777718065435362, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, companyId=1241777718048658144, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2b.江汉大学 湖北(武汉)爆炸与爆破技术研究院,武汉 430056)])], figs=[ArticleFig(id=1241777720498131911, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=EN, label=Fig. 1, caption=
Tunnel profile design (unit: cm), figureFileSmall=92QzSGf4h03PWb1r12kn0A==, figureFileBig=tNCHYYX+ciHJe+Prt/Fuww==, tableContent=null), ArticleFig(id=1241777720586212302, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=CN, label=图1, caption=
隧道断面内轮廓设计(单位:cm), figureFileSmall=92QzSGf4h03PWb1r12kn0A==, figureFileBig=tNCHYYX+ciHJe+Prt/Fuww==, tableContent=null), ArticleFig(id=1241777722234573793, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=EN, label=Fig. 2, caption=
Burn cut blasting design (unit: mm), figureFileSmall=iLu//DzIHR52Q+Yzc0/zYA==, figureFileBig=xOT07Fnr6Lw4P2iv7Qw3Qw==, tableContent=null), ArticleFig(id=1241777722364597228, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=CN, label=图2, caption=
直孔掏槽布置(单位:mm), figureFileSmall=iLu//DzIHR52Q+Yzc0/zYA==, figureFileBig=xOT07Fnr6Lw4P2iv7Qw3Qw==, tableContent=null), ArticleFig(id=1241777722503009269, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=EN, label=Fig. 3, caption=
Burn cut drilling site, figureFileSmall=Yb/1nlAVt+Re0O3oYcc9og==, figureFileBig=4n1glmnI5EY30TZWgm8Lug==, tableContent=null), ArticleFig(id=1241777722574312444, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=CN, label=图3, caption=
直孔掏槽现场钻孔效果, figureFileSmall=Yb/1nlAVt+Re0O3oYcc9og==, figureFileBig=4n1glmnI5EY30TZWgm8Lug==, tableContent=null), ArticleFig(id=1241777722662391812, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=EN, label=Fig. 4, caption=
Burn cut blasting full section hole layout (unit: mm), figureFileSmall=cgN5S5e3mvVlCoxDpBC07g==, figureFileBig=ju0stR9LvXThZ9ePemeWKw==, tableContent=null), ArticleFig(id=1241777722792415239, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=CN, label=图4, caption=
直孔掏槽爆破全断面炮孔布置(单位:mm), figureFileSmall=cgN5S5e3mvVlCoxDpBC07g==, figureFileBig=ju0stR9LvXThZ9ePemeWKw==, tableContent=null), ArticleFig(id=1241777722893078543, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=EN, label=Fig. 5, caption=
Burn cut blasting charge structure (unit: mm), figureFileSmall=dVaqapEtDE/Rl5w/+a0jtg==, figureFileBig=JkRo9T4qUHb0p94OekrfLA==, tableContent=null), ArticleFig(id=1241777722989547540, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=CN, label=图5, caption=
直孔掏槽爆破装药结构(单位:mm), figureFileSmall=dVaqapEtDE/Rl5w/+a0jtg==, figureFileBig=JkRo9T4qUHb0p94OekrfLA==, tableContent=null), ArticleFig(id=1241777723119570973, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=EN, label=Fig. 6, caption=
Overcut and undercut analysis of Burn cut blasting, figureFileSmall=y9NDuE/0d4xBPf4O2WxHiQ==, figureFileBig=YpmAsFJft/38XeSgPRrHqg==, tableContent=null), ArticleFig(id=1241777723232817189, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=CN, label=图6, caption=
直孔掏槽爆破超欠挖分析, figureFileSmall=y9NDuE/0d4xBPf4O2WxHiQ==, figureFileBig=YpmAsFJft/38XeSgPRrHqg==, tableContent=null), ArticleFig(id=1241777723341869101, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=EN, label=Fig. 7, caption=
Blasting effect of Burn cut, figureFileSmall=IrZ80fzyAptjuCGJn8ra9w==, figureFileBig=zuleAA3oBr+C9H7zCj33oA==, tableContent=null), ArticleFig(id=1241777723471892533, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=CN, label=图7, caption=
直孔掏槽现场爆破效果, figureFileSmall=IrZ80fzyAptjuCGJn8ra9w==, figureFileBig=zuleAA3oBr+C9H7zCj33oA==, tableContent=null), ArticleFig(id=1241777723610304571, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=EN, label=Fig. 8, caption=
The platform is too wide causing overcut, figureFileSmall=V+r6IWLuTuGasfqwhv4CFA==, figureFileBig=xbdzFknlrrt9Y1c3Qe9lWw==, tableContent=null), ArticleFig(id=1241777723719356481, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=CN, label=图8, caption=
错台过宽导致超挖较大, figureFileSmall=V+r6IWLuTuGasfqwhv4CFA==, figureFileBig=xbdzFknlrrt9Y1c3Qe9lWw==, tableContent=null), ArticleFig(id=1241777723845185608, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=EN, label=Table 1, caption=
Preliminary design of blasting parameters
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| 炮孔类型 | 孔数 | 单孔装药量/kg | 合计装药量/kg |
|---|
| 掏槽孔 | 13 | 3.21 | 41.73 |
| 周边孔 | 41 | 1.35 | 55.35 |
| 底板孔 | 12 | 2.82 | 33.84 |
| 辅助孔 | 61 | 3.20 | 195.11 |
| 合计 | 127 | | 326.03 |
), ArticleFig(id=1241777723966820430, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=CN, label=表1, caption=
爆破参数初步设计
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| 炮孔类型 | 孔数 | 单孔装药量/kg | 合计装药量/kg |
|---|
| 掏槽孔 | 13 | 3.21 | 41.73 |
| 周边孔 | 41 | 1.35 | 55.35 |
| 底板孔 | 12 | 2.82 | 33.84 |
| 辅助孔 | 61 | 3.20 | 195.11 |
| 合计 | 127 | | 326.03 |
), ArticleFig(id=1241777724054900816, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=EN, label=Table 2, caption=
Parameters of burn cut blasting
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| 炮孔类型(段别) | 孔数 | 孔深/m | 装药直径/mm | 延期时间/ms | 单孔装药量/kg | 合计装药量/kg |
|---|
| 空孔 | 4 | 4.70 | | | | |
| 掏槽孔(1) | 1 | 4.70 | 40 | 0 | 5.00 | 5.00 |
| 掏槽孔(2) | 2 | 4.70 | 40 | 50 | 4.50 | 9.00 |
| 掏槽孔(3) | 2 | 4.70 | 40 | 100 | 4.50 | 9.00 |
| 掏槽孔(4) | 2 | 4.70 | 40 | 150 | 4.50 | 9.00 |
| 掏槽孔(5) | 2 | 4.70 | 40 | 200 | 4.50 | 9.00 |
| 掏槽孔(6) | 2 | 4.70 | 40 | 250 | 4.50 | 9.00 |
| 掏槽孔(7) | 2 | 4.70 | 40 | 300 | 4.50 | 9.00 |
| 辅助孔(8) | 6 | 4.50 | 40 | 350 | 3.50 | 21.00 |
| 辅助孔(9) | 6 | 4.50 | 40 | 400 | 3.50 | 21.00 |
| 辅助孔(10) | 6 | 4.50 | 40 | 450 | 3.50 | 21.00 |
| 辅助孔(11) | 6 | 4.50 | 40 | 500 | 3.50 | 21.00 |
| 辅助孔(12) | 5 | 4.50 | 40 | 550 | 3.50 | 17.50 |
| 辅助孔(13) | 5 | 4.50 | 40 | 600 | 3.50 | 17.50 |
| 辅助孔(14) | 5 | 4.50 | 40 | 650 | 3.50 | 17.50 |
| 辅助孔(15) | 8 | 4.50 | 40 | 700 | 3.50 | 28.00 |
| 辅助孔(16) | 7 | 4.50 | 40 | 750 | 3.50 | 24.50 |
| 辅助孔(17) | 7 | 4.50 | 40 | 800 | 3.50 | 24.50 |
| 辅助孔(18) | 8 | 4.50 | 40 | 850 | 3.50 | 28.00 |
| 底板孔(19) | 10 | 4.50 | 40 | 900 | 4.00 | 40.00 |
| 周边孔(20) | 41 | 4.50 | 32 | 950 | 1.20 | 49.20 |
| 底板孔(21) | 2 | 4.50 | 40 | 1000 | 4.00 | 8.00 |
| 合计 | 139 | | | | | 397.70 |
), ArticleFig(id=1241777724172341336, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=CN, label=表2, caption=
直孔掏槽爆破参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 炮孔类型(段别) | 孔数 | 孔深/m | 装药直径/mm | 延期时间/ms | 单孔装药量/kg | 合计装药量/kg |
|---|
| 空孔 | 4 | 4.70 | | | | |
| 掏槽孔(1) | 1 | 4.70 | 40 | 0 | 5.00 | 5.00 |
| 掏槽孔(2) | 2 | 4.70 | 40 | 50 | 4.50 | 9.00 |
| 掏槽孔(3) | 2 | 4.70 | 40 | 100 | 4.50 | 9.00 |
| 掏槽孔(4) | 2 | 4.70 | 40 | 150 | 4.50 | 9.00 |
| 掏槽孔(5) | 2 | 4.70 | 40 | 200 | 4.50 | 9.00 |
| 掏槽孔(6) | 2 | 4.70 | 40 | 250 | 4.50 | 9.00 |
| 掏槽孔(7) | 2 | 4.70 | 40 | 300 | 4.50 | 9.00 |
| 辅助孔(8) | 6 | 4.50 | 40 | 350 | 3.50 | 21.00 |
| 辅助孔(9) | 6 | 4.50 | 40 | 400 | 3.50 | 21.00 |
| 辅助孔(10) | 6 | 4.50 | 40 | 450 | 3.50 | 21.00 |
| 辅助孔(11) | 6 | 4.50 | 40 | 500 | 3.50 | 21.00 |
| 辅助孔(12) | 5 | 4.50 | 40 | 550 | 3.50 | 17.50 |
| 辅助孔(13) | 5 | 4.50 | 40 | 600 | 3.50 | 17.50 |
| 辅助孔(14) | 5 | 4.50 | 40 | 650 | 3.50 | 17.50 |
| 辅助孔(15) | 8 | 4.50 | 40 | 700 | 3.50 | 28.00 |
| 辅助孔(16) | 7 | 4.50 | 40 | 750 | 3.50 | 24.50 |
| 辅助孔(17) | 7 | 4.50 | 40 | 800 | 3.50 | 24.50 |
| 辅助孔(18) | 8 | 4.50 | 40 | 850 | 3.50 | 28.00 |
| 底板孔(19) | 10 | 4.50 | 40 | 900 | 4.00 | 40.00 |
| 周边孔(20) | 41 | 4.50 | 32 | 950 | 1.20 | 49.20 |
| 底板孔(21) | 2 | 4.50 | 40 | 1000 | 4.00 | 8.00 |
| 合计 | 139 | | | | | 397.70 |
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Technical and economic indexes of the original blasting scheme
, figureFileSmall=null, figureFileBig=null, tableContent=
| 平均每循环进尺/m | 炮孔利用率/% | 平均每循环崩落岩石/m3 | 炸药单耗/(kg·m-3) | 每米隧道炸药消耗量/(kg·m-3) | 每循环炮孔总长度/m | 岩石雷管消耗量/(个·m-3) | 每米隧道雷管消耗量/(个·m-3) |
|---|
| 3.16 | 90.29 | 144.38 | 1.88 | 82.22 | 435.90 | 0.78 | 34.24 |
), ArticleFig(id=1241777724411416680, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=CN, label=表3, caption=
原爆破方案主要技术经济指标
, figureFileSmall=null, figureFileBig=null, tableContent=
| 平均每循环进尺/m | 炮孔利用率/% | 平均每循环崩落岩石/m3 | 炸药单耗/(kg·m-3) | 每米隧道炸药消耗量/(kg·m-3) | 每循环炮孔总长度/m | 岩石雷管消耗量/(个·m-3) | 每米隧道雷管消耗量/(个·m-3) |
|---|
| 3.16 | 90.29 | 144.38 | 1.88 | 82.22 | 435.90 | 0.78 | 34.24 |
), ArticleFig(id=1241777724503691373, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=EN, label=Table 4, caption=
Technical and economic indexes of burn cut blasting scheme
, figureFileSmall=null, figureFileBig=null, tableContent=
| 平均每循环进尺/m | 炮孔利用率/% | 平均每循环崩落岩石/m3 | 炸药单耗/(kg·m-3) | 每米隧道炸药消耗量/(kg·m-1) | 每循环炮孔总长度/m | 岩石雷管消耗量/(个·m-3) | 每米隧道雷管消耗量/(个·m-3) |
|---|
| 4.12 | 91.56 | 180.25 | 2.21 | 96.89 | 628.90 | 0.75 | 32.77 |
), ArticleFig(id=1241777724629520502, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241777707369959593, language=CN, label=表4, caption=
直孔掏槽爆破方案主要技术经济指标
, figureFileSmall=null, figureFileBig=null, tableContent=
| 平均每循环进尺/m | 炮孔利用率/% | 平均每循环崩落岩石/m3 | 炸药单耗/(kg·m-3) | 每米隧道炸药消耗量/(kg·m-1) | 每循环炮孔总长度/m | 岩石雷管消耗量/(个·m-3) | 每米隧道雷管消耗量/(个·m-3) |
|---|
| 4.12 | 91.56 | 180.25 | 2.21 | 96.89 | 628.90 | 0.75 | 32.77 |
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