Article(id=1241687549429739776, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241687532522492319, articleNumber=null, orderNo=null, doi=10.3963/j.issn.1001-487X.2023.03.017, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1677427200000, receivedDateStr=2023-02-27, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1773970981223, onlineDateStr=2026-03-20, pubDate=1693497600000, pubDateStr=2023-09-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773970981223, onlineIssueDateStr=2026-03-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773970981223, creator=13701087609, updateTime=1773970981223, updator=13701087609, issue=Issue{id=1241687532522492319, tenantId=1146029695717560320, journalId=1240670690148397066, year='2023', volume='40', issue='3', pageStart='1', pageEnd='242', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773970977192, creator=13701087609, updateTime=1773971036114, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241687779722187605, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241687532522492319, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241687779722187606, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241687532522492319, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=123, endPage=128, ext={EN=ArticleExt(id=1241687551048741174, articleId=1241687549429739776, tenantId=1146029695717560320, journalId=1240670690148397066, language=EN, title=Study on Span-by-span Delay Bidirectional Blasting Demolition for Simply Supported Aqueduct with High Piers, columnId=1240702072073548400, journalTitle=Blasting, columnName=EXPLOSIVE DEMOLITION, runingTitle=null, highlight=null, articleAbstract=
In order to successfully demolish a high pier reinforced concrete aqueduct by blasting between the 75#~84# piers of Dongfeng Canal in Yichang City and reduce the impact on the surrounding complex environment, a bidirectional collapse design was adopted. In the design scheme, the aqueducts between the 75#~76# piers collapse in a northerly direction perpendicular to the aqueduct trend, and the aqueducts 77#~84# piers collapse westward along the aqueduct trend. More precisely, an initiation network of electronic and non-electric detonators with delays of 50 ms and 150 ms was adopted using the 75# pier as the initiation point. Moreover, the harmful effects of blasting on the environment were controlled by using lifting holes as blast holes, excavating vibration reduction ditches, hanging nets and covering protection layer, storing water in the trench body, and covering soil protection. The results show that the aqueduct collapsed with a 4-minute delay after initiation, and the collapsed pier body was basically decomposed into blocks with intact aqueduct body, with most fragments scattered along the trend within 10 m of the central axis of the aqueduct, and only a few small pieces flying farther than 10 m. The adopted protective measures can effectively control the blasting flying rocks and vibration, and no damage has been found to the inverted siphon of temporary water delivery pipeline and the road pavement. The project was carried out successfully despite the delay in collapse. The possible reasons for the delayed collapse include no incision on outside of the structural column, the delay time interval between pier columns is small, and the blasting incision is small.
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为了顺利爆破拆除宜昌市东风渠75#~84#槽墩之间的高墩钢筋混凝土渡槽时降低对周围复杂环境的影响,采用了双方定向倒塌的方案。即:75#~76#槽墩之间渡槽垂直于渡槽走向朝北定向倒塌,77#~84#槽墩沿着渡槽走向朝西定向倒塌。以75#槽墩为起爆点,使用电子雷管与非电雷管相结合的爆破网路,并设置墩柱之间延时分别为50 ms和150 ms。同时利用吊装孔作为炮孔、开挖减振沟、挂网及覆盖防护、槽身蓄水、覆土防护等措施以降低爆破有害效应对环境的影响。结果表明:起爆后渡槽延迟4分钟倒塌,倒塌后的墩身基本分解为砌块,多数砌块及槽身保持完好;沿走向倒塌的渡槽绝大多数散落砌块及破碎体散落在距渡槽走向中轴线10 m范围内,仅少量小块碎石飞出10 m外。采取的多重防护措施有效控制了爆破飞石和爆破振动,需重点保护的倒虹吸临时输水管道和下穿公路路面等未见损坏。尽管有延迟倒塌的瑕疵,该工程仍算成功实施。延迟倒塌的可能原因为未对切口外构造柱弱化或切割处理、墩柱间爆破延期时间间隔偏小和爆破切口偏小。
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叶建军(1974-),男,博士、教授,主要从事绿色爆破、绿色拆除、生态护坡研究,(E-mail)715470323@qq.com。
YE Jian-jun (1974-), male, Ph. D, professor, mainly engaged in research on green blasting, green demolition and ecological slope protection, (E-mail) 715470323@qq.com.
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1.School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241687556564251282, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, authorId=1241687556341953154, language=CN, stringName=叶建军, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.湖北工业大学 土木建筑与环境学院,武汉 430068, bio={"content":"
叶建军(1974-),男,博士、教授,主要从事绿色爆破、绿色拆除、生态护坡研究,(E-mail)715470323@qq.com。
YE Jian-jun (1974-), male, Ph. D, professor, mainly engaged in research on green blasting, green demolition and ecological slope protection, (E-mail) 715470323@qq.com.
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叶建军(1974-),男,博士、教授,主要从事绿色爆破、绿色拆除、生态护坡研究,(E-mail)715470323@qq.com。
YE Jian-jun (1974-), male, Ph. D, professor, mainly engaged in research on green blasting, green demolition and ecological slope protection, (E-mail) 715470323@qq.com.
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2.Hubei Kailong Engineering Blasting Co., Ltd., Jingmen 448004, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241687557126288073, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, authorId=1241687556941738684, language=CN, stringName=韩学军, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2015., articleTitle=null, refAbstract=null)], funds=[Fund(id=1241687562172036039, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, awardId=SJZX20220909, language=EN, fundingSource=2022 Hubei Provincial Special Fund for Safety Production Science and Technology Project “Research on High Efficiency and Green Blasting Technology for Deep Hole Segmentation in Mines”(SJZX20220909), fundOrder=null, country=null), Fund(id=1241687563681985486, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, awardId=SJZX20220909, language=CN, fundingSource=2022年湖北省安全生产专项资金科技项目“矿山深孔孔内分段高效绿色爆破技术研究”(SJZX20220909), fundOrder=null, country=null), Fund(id=1241687563791037395, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, awardId=4201/01916, language=EN, fundingSource=Science and Technology Development Project “Open pit deep hole segmented green blasting technology” funded by Hubei Kailong Engineering Blasting Co., Ltd.(4201/01916), fundOrder=null, country=null), Fund(id=1241687563891700698, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, awardId=4201/01916, language=CN, fundingSource=湖北凯龙工程爆破有限公司科技开发项目“露天深孔孔内分段绿色爆破技术”(4201/01916), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1241687556128043624, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, xref=1., ext=[AuthorCompanyExt(id=1241687556136432233, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, companyId=1241687556128043624, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1.湖北工业大学 土木建筑与环境学院,武汉 430068)]), AuthorCompany(id=1241687556232901236, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, xref=2., ext=[AuthorCompanyExt(id=1241687556237095540, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, companyId=1241687556232901236, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2.湖北凯龙工程爆破有限公司,荆门 448004)])], figs=[ArticleFig(id=1241687559890334514, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, language=EN, label=Fig. 1, caption=
The surrounding environment of the aqueduct (unit: m), figureFileSmall=hj3A9OGmJNnY1FkZW8MKvA==, figureFileBig=/t2hAoa3iF/dmgoqLnRFbA==, tableContent=null), ArticleFig(id=1241687559949054777, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, language=CN, label=图1, caption=
渡槽周边环境(单位:m), figureFileSmall=hj3A9OGmJNnY1FkZW8MKvA==, figureFileBig=/t2hAoa3iF/dmgoqLnRFbA==, tableContent=null), ArticleFig(id=1241687560171352903, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, language=EN, label=Fig. 2, caption=
The aqueduct to be demolished, figureFileSmall=cAFPD1vCdb+Jt5pJxadAQw==, figureFileBig=fzvPLrBiEfLfmdTf6i0CkQ==, tableContent=null), ArticleFig(id=1241687560267821903, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, language=CN, label=图2, caption=
待拆除渡槽实景图, figureFileSmall=cAFPD1vCdb+Jt5pJxadAQw==, figureFileBig=fzvPLrBiEfLfmdTf6i0CkQ==, tableContent=null), ArticleFig(id=1241687560347513686, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, language=EN, label=Fig. 3, caption=
Sectional view of pier at Ⅰ-Ⅰ (unit: cm), figureFileSmall=UMFFIjaFJaiAnPMNulJAaA==, figureFileBig=cflKrGtERZ2YtmNL+xNScQ==, tableContent=null), ArticleFig(id=1241687560431399770, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, language=CN, label=图3, caption=
墩柱Ⅰ-Ⅰ处剖视图(单位:cm), figureFileSmall=UMFFIjaFJaiAnPMNulJAaA==, figureFileBig=cflKrGtERZ2YtmNL+xNScQ==, tableContent=null), ArticleFig(id=1241687560532063072, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, language=EN, label=Fig. 4, caption=
Plan view of pier cap top (unit: cm), figureFileSmall=0nlaYs5aDRoYXH7pEgWAyw==, figureFileBig=rKsWxwlCiWR5Nfcn03thxg==, tableContent=null), ArticleFig(id=1241687560687252328, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, language=CN, label=图4, caption=
墩帽顶部平面图(单位:cm), figureFileSmall=0nlaYs5aDRoYXH7pEgWAyw==, figureFileBig=rKsWxwlCiWR5Nfcn03thxg==, tableContent=null), ArticleFig(id=1241687560758555498, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, language=EN, label=Fig. 5, caption=
Layout of reinforcing bars for ring and connecting beams (unit: cm), figureFileSmall=v7UjlVqd0XNyHJedsIn0DQ==, figureFileBig=t6tOUmVkGonlqKgq7Llotw==, tableContent=null), ArticleFig(id=1241687560867607411, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, language=CN, label=图5, caption=
圈梁及连系梁配筋图(单位:cm), figureFileSmall=v7UjlVqd0XNyHJedsIn0DQ==, figureFileBig=t6tOUmVkGonlqKgq7Llotw==, tableContent=null), ArticleFig(id=1241687560938910584, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, language=EN, label=Fig. 6, caption=
Cross section at Ⅱ-Ⅱ (unit: cm), figureFileSmall=KE7DPaJphhRtlW2+MpLP5A==, figureFileBig=C7jsY9+xUEES17fqLDiCug==, tableContent=null), ArticleFig(id=1241687561031185280, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, language=CN, label=图6, caption=
Ⅱ-Ⅱ处的剖面图(单位:cm), figureFileSmall=KE7DPaJphhRtlW2+MpLP5A==, figureFileBig=C7jsY9+xUEES17fqLDiCug==, tableContent=null), ArticleFig(id=1241687561102488454, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, language=EN, label=Fig. 7, caption=
Cross section at the blasting cut of the piers, figureFileSmall=Azx1BfG+GTcCy8tZpqxkGA==, figureFileBig=kxhcD713SLIqSA1Oxr86Cg==, tableContent=null), ArticleFig(id=1241687561177985929, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, language=CN, label=图7, caption=
爆破切口横截面, figureFileSmall=Azx1BfG+GTcCy8tZpqxkGA==, figureFileBig=kxhcD713SLIqSA1Oxr86Cg==, tableContent=null), ArticleFig(id=1241687561257677712, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, language=EN, label=Fig. 8, caption=
Charging structure of the blasthole (unit: cm), figureFileSmall=CqQVhA3KFwDdRDS6AoBCRQ==, figureFileBig=OHnv6XfOxP4wZ7zY7GLL+g==, tableContent=null), ArticleFig(id=1241687561354146711, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, language=CN, label=图8, caption=
砌块炮孔装药结构(单位:cm), figureFileSmall=CqQVhA3KFwDdRDS6AoBCRQ==, figureFileBig=OHnv6XfOxP4wZ7zY7GLL+g==, tableContent=null), ArticleFig(id=1241687561438032795, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, language=EN, label=Fig. 9, caption=
Schematic diagram of the initiation network, figureFileSmall=glV5b2cjNCk8ijL1i/s4HA==, figureFileBig=iWGadG6JV351XDEXdTK9HQ==, tableContent=null), ArticleFig(id=1241687561513530272, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, language=CN, label=图9, caption=
槽墩爆破网路示意图, figureFileSmall=glV5b2cjNCk8ijL1i/s4HA==, figureFileBig=iWGadG6JV351XDEXdTK9HQ==, tableContent=null), ArticleFig(id=1241687561597416358, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, language=EN, label=Fig. 10, caption=
Blast Effect, figureFileSmall=/VnBZ8KEuTh2q6/J601A1A==, figureFileBig=xk24M51+O891rwufC1IZYw==, tableContent=null), ArticleFig(id=1241687561693885358, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, language=CN, label=图10, caption=
渡槽爆后的效果图, figureFileSmall=/VnBZ8KEuTh2q6/J601A1A==, figureFileBig=xk24M51+O891rwufC1IZYw==, tableContent=null), ArticleFig(id=1241687561807131570, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241687549429739776, language=EN, label=Table 1, caption=
Blasting parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
| 部位 | 切口高度/m | 孔径/mm | 孔深/m | 孔距/m | 排距/m | 单耗/(g·m-3) | 炮孔数量/个 | 单孔药量/g | 总装药量/kg |
|---|
| 砌体 | 2.0 | 50 | 0.3 | 0.5 | 0.4 | 1600 | 870 | 100 | 87 |
| 构造柱 | 2.0 | 42 | 0.2 | 0.3 | - | 2000 | 210 | 100 | 21 |
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爆破参数
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| 部位 | 切口高度/m | 孔径/mm | 孔深/m | 孔距/m | 排距/m | 单耗/(g·m-3) | 炮孔数量/个 | 单孔药量/g | 总装药量/kg |
|---|
| 砌体 | 2.0 | 50 | 0.3 | 0.5 | 0.4 | 1600 | 870 | 100 | 87 |
| 构造柱 | 2.0 | 42 | 0.2 | 0.3 | - | 2000 | 210 | 100 | 21 |
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Calculation table of blasting vibration at the protected objects
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| 保护对象(从西至东) | 居民房1 | 居民房2 | 居民房3 | 倒虹吸管道 |
|---|
| 距离最近的槽墩 | 77# | 84# | 84# | 75#-84# |
| 最小距离/m | 39 | 20 | 55 | 15 |
| 槽墩最大单响药量/kg | 11.6 | 10.6 | 10.6 | 11.6 |
| 爆破振动速度/(cm·s-1) | 0.37 | 1.0 | 0.2 | 1.65 |
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保护对象处爆破振动计算表
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| 保护对象(从西至东) | 居民房1 | 居民房2 | 居民房3 | 倒虹吸管道 |
|---|
| 距离最近的槽墩 | 77# | 84# | 84# | 75#-84# |
| 最小距离/m | 39 | 20 | 55 | 15 |
| 槽墩最大单响药量/kg | 11.6 | 10.6 | 10.6 | 11.6 |
| 爆破振动速度/(cm·s-1) | 0.37 | 1.0 | 0.2 | 1.65 |
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