Article(id=1236334632493445456, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1236334630450819368, articleNumber=null, orderNo=null, doi=10.3969/j.issn.0253-6099.2023.06.006, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1687708800000, receivedDateStr=2023-06-26, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1772694746372, onlineDateStr=2026-03-05, pubDate=1701360000000, pubDateStr=2023-12-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1772694746372, onlineIssueDateStr=2026-03-05, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1772694746372, creator=13701087609, updateTime=1772694746372, updator=13701087609, issue=Issue{id=1236334630450819368, tenantId=1146029695717560320, journalId=1235980550691926019, year='2023', volume='43', issue='6', pageStart='1', pageEnd='183', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1772694745886, creator=13701087609, updateTime=1772694896382, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1236335261735506524, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1236334630450819368, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1236335261735506525, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1236334630450819368, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=24, endPage=28, ext={EN=ArticleExt(id=1236334632912875884, articleId=1236334632493445456, tenantId=1146029695717560320, journalId=1235980550691926019, language=EN, title=Optimization of Blasthole Layout in Upward Cutting Blasting with Medium Hole Length, columnId=1236276106018484431, journalTitle=Mining and Metallurgical Engineering, columnName=MINING, runingTitle=null, highlight=null, articleAbstract=

A nine-hole cut blasting method was adopted in a test of Tonglushan stope. In combination with on-site actual situation, cutting blasting with medium hole length was studied by using theories of compensated space and fissure zone. The first circle of blasthole layout for cutting blasting was optimized, and four types of models for first circle of blasthole layout were then established by LS-DYNA software. After simulation calculation, the rock blasting effect was simulated by using RHT constitutive model. The results show that the more number of empty blastholes (that is, the larger the compensation space), the better the blasting effect in cutting area. The uniformity of empty blasthole position (that is the uniformity of compensative space) will also influence blasting effect. It is shown that both the section and height of the trench after blasting in the field test meet the design requirement, which proves that the first circle blasthole layout for cutting blasting is reasonable.

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以铜绿山试验采场为例，采用九孔掏槽爆破法，结合现场实际情况，并利用补偿空间理论、裂隙区理论等对中深孔爆破掏槽方式进行研究，优化其首圈掏槽爆破炮孔布置方式，并利用LS-DYNA软件建立了4种首圈炮孔布置方式模型，进行爆破仿真计算，利用RHT本构模型模拟岩石爆破效果。结果表明，空孔数量越多（即补偿空间越大），掏槽区爆破效果越好；空孔位置的均匀程度（即补偿空间的均匀程度）也会影响爆破效果。现场试验所得爆后槽区断面与高度均满足设计要求，证实首圈掏槽爆破炮孔布置方式合理。

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^2.School of Resources and Safety Engineering, Central South University, Changsha 410083, Hunan, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1236334633957257682, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236334632493445456, authorId=1236334633747542462, language=CN, stringName=谷亚州, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=^{1, 2}, address=^1．紫金（长沙）工程技术有限公司，湖南 长沙 410000
^2．中南大学 资源与安全工程学院，湖南 长沙 410083, bio={"content":"

谷亚州（1996—），男，河南驻马店人，硕士，主要从事采矿与爆破方面的研究工作。

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谷亚州（1996—），男，河南驻马店人，硕士，主要从事采矿与爆破方面的研究工作。

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