Article(id=1241046464793727717, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241046461174043350, articleNumber=null, orderNo=null, doi=10.3963/j.issn.1001-487X.2025.01.007, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1716825600000, receivedDateStr=2024-05-28, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1773818134735, onlineDateStr=2026-03-18, pubDate=1752940800000, pubDateStr=2025-07-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773818134735, onlineIssueDateStr=2026-03-18, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773818134735, creator=13701087609, updateTime=1773818134735, updator=13701087609, issue=Issue{id=1241046461174043350, tenantId=1146029695717560320, journalId=1240670690148397066, year='2025', volume='42', issue='1', pageStart='1', pageEnd='198', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=0, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773818133871, creator=13701087609, updateTime=1773820872662, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241057948554817923, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241046461174043350, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241057948554817924, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241046461174043350, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=56, endPage=62, ext={EN=ArticleExt(id=1241046466148487923, articleId=1241046464793727717, tenantId=1146029695717560320, journalId=1240670690148397066, language=EN, title=Model Test and Numerical Analysis of Resistance Line Influence on Underwater Bench Blasting, columnId=1240702072862069231, journalTitle=Blasting, columnName=BLASTING IN ORE AND ROCK, runingTitle=null, highlight=null, articleAbstract=
The resistance line, as a core parameter in a blast design, is closely related to rock throwing distance and fragmentation degree, thereby directly affecting the fragmentation effectiveness and the final shape of the blast pile. Due to the significant complexity of an underwater blasting project, the factors affecting the effect of underwater blasting are intricate and complex, so it is essential to explore the impact of resistance line parameters on underwater bench blasting law through both drilling and blasting tests and numerical simulations using the FLUENT-EDEM coupling method. Four resistance line cases (2 cm, 4 cm, 5 cm, and 6.5 cm) were tested. The results indicate that as the resistance line parameter increases, the proportion of adequate energy used for rock fragmentation increases, resulting in a larger blasting funnel volume. However, with further increases in the resistance line, the explosive energy per unit volume of rock decreases, and the stress wave reflection intensity weakens. Consequently, the inhomogeneity of blasting block size first decreases and then increases with the resistance line. Additionally, numerical calculations effectively replicate the model test blasting effects, demonstrating that using the FLUENT-EDEM fluid-solid coupling method to study underwater bench blasting fragmentation is practical and feasible.
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抵抗线作为爆破设计中的核心参数,与岩石的抛掷距离以及破碎程度都有着密切的关系,从而直接影响破碎效果以及最终的爆堆形状。由于水下爆破工程具有显著的复杂性,影响水下爆破效果的因素错综复杂,因此,探究抵抗线参数对水下台阶爆破的影响规律是必不可少的。通过设置不同抵抗线参数的水下台阶钻爆试验,并采用FLUENT-EDEM耦合方法对抵抗线为2 cm、4 cm、5 cm、6.5 cm四种情况下的爆破试验进行数值模拟,将试验与数值模拟相结合综合评估了抵抗线参数对水下台阶爆破效果的影响。结果表明:抵抗线参数增加初期,用于破碎岩石的有效能量占比增加,且爆破漏斗体积也进一步增大,但随着抵抗线的进一步增加,岩体单位体积所承担的爆炸能量反而降低,另外应力波反射作用强度也减弱了,因此爆破块度的不均匀性呈现出随抵抗线先减小后增大的规律。此外,数值计算能较好地对模型试验的爆破效果进行模拟且结果一致,说明运用FLUENT-EDEM流固耦合方法来探究水下台阶爆破块度破碎问题是切实可行的。
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吴亮(1980-),男,湖北汉川人,博士、副教授,主要从事工程爆破与岩石动力学研究方面的工作,(E-mail)wuliangwust@sina.com。
WU Liang (1980-), male, born in Hanchuan city, Hubei province, Ph. D, associate professor, mainly engaged in engineering blasting and rock dynamics research, (E-mail) wuliangwust@sina.com.
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吴亮(1980-),男,湖北汉川人,博士、副教授,主要从事工程爆破与岩石动力学研究方面的工作,(E-mail)wuliangwust@sina.com。
WU Liang (1980-), male, born in Hanchuan city, Hubei province, Ph. D, associate professor, mainly engaged in engineering blasting and rock dynamics research, (E-mail) wuliangwust@sina.com.
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吴亮(1980-),男,湖北汉川人,博士、副教授,主要从事工程爆破与岩石动力学研究方面的工作,(E-mail)wuliangwust@sina.com。
WU Liang (1980-), male, born in Hanchuan city, Hubei province, Ph. D, associate professor, mainly engaged in engineering blasting and rock dynamics research, (E-mail) wuliangwust@sina.com.
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混凝土台阶爆破模型(单位:cm), figureFileSmall=Um7m+yTlDk4cIYxQyFGJxQ==, figureFileBig=Sg3Jy0KbnlvZMylE3vqFgg==, tableContent=null), ArticleFig(id=1241057543380849422, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241046464793727717, language=EN, label=Fig. 2, caption=
The damage of different resistance lines in drilling and blasting test, figureFileSmall=ddyY/QgAgvB+sJBpSnrRdw==, figureFileBig=i4CdHae7lEnGJkF2v3uTeA==, tableContent=null), ArticleFig(id=1241057543473124117, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241046464793727717, language=CN, label=图2, caption=
不同抵抗线钻爆试验的破坏情况, figureFileSmall=ddyY/QgAgvB+sJBpSnrRdw==, figureFileBig=i4CdHae7lEnGJkF2v3uTeA==, tableContent=null), ArticleFig(id=1241057544991462174, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241046464793727717, language=EN, label=Fig. 3, caption=
Fragmentation of different resistance line blasting test, figureFileSmall=g+g77Y4SlZGukBpNuroziw==, figureFileBig=YuBaF1u4TxidSDm9P9+Akw==, tableContent=null), ArticleFig(id=1241057545150845736, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241046464793727717, language=CN, label=图3, caption=
不同抵抗线爆破试验的块度情况, figureFileSmall=g+g77Y4SlZGukBpNuroziw==, figureFileBig=YuBaF1u4TxidSDm9P9+Akw==, tableContent=null), ArticleFig(id=1241057545251509040, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241046464793727717, language=EN, label=Fig. 4, caption=
Fragment block diagram of resistance line W=6.5 cm test, figureFileSmall=07+rOlZYbuHZQ9Ha85jGkg==, figureFileBig=OBOHOgBo2wH3gHBit/UYnA==, tableContent=null), ArticleFig(id=1241057545322812214, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241046464793727717, language=CN, label=图4, caption=
抵抗线W=6.5 cm试验的块度色块图, figureFileSmall=07+rOlZYbuHZQ9Ha85jGkg==, figureFileBig=OBOHOgBo2wH3gHBit/UYnA==, tableContent=null), ArticleFig(id=1241057545419281211, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241046464793727717, language=EN, label=Fig. 5, caption=
Distribution of fragmentation with different resistance lines, figureFileSmall=8PNd88P37w2w9XfCJ8CLOg==, figureFileBig=yidY4hzgRy+DFJ2YVjkWMQ==, tableContent=null), ArticleFig(id=1241057545561887558, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241046464793727717, language=CN, label=图5, caption=
不同抵抗线爆破块度分布图, figureFileSmall=8PNd88P37w2w9XfCJ8CLOg==, figureFileBig=yidY4hzgRy+DFJ2YVjkWMQ==, tableContent=null), ArticleFig(id=1241057545708688208, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241046464793727717, language=EN, label=Fig. 6, caption=
Schematic diagram of Hertz-Mindlin′s contact model, figureFileSmall=TybluX+OPJPhndYSnnDZUQ==, figureFileBig=vWQbsmZj1hyoEFJEnlUkdQ==, tableContent=null), ArticleFig(id=1241057545842905941, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241046464793727717, language=CN, label=图6, caption=
Hertz-Mindlin接触模型示意图, figureFileSmall=TybluX+OPJPhndYSnnDZUQ==, figureFileBig=vWQbsmZj1hyoEFJEnlUkdQ==, tableContent=null), ArticleFig(id=1241057545993900897, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241046464793727717, language=EN, label=Fig. 7, caption=
Schematic diagram of parallel bond model, figureFileSmall=Hw2Ei0iBary65UuvdczPQg==, figureFileBig=AFgGI57XL9C4JPhIPq+hSw==, tableContent=null), ArticleFig(id=1241057546102952805, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241046464793727717, language=CN, label=图7, caption=
平行键模型示意图, figureFileSmall=Hw2Ei0iBary65UuvdczPQg==, figureFileBig=AFgGI57XL9C4JPhIPq+hSw==, tableContent=null), ArticleFig(id=1241057546195227501, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241046464793727717, language=EN, label=Fig. 8, caption=
Underwater bench EDEM model(unit:cm), figureFileSmall=txG9DypOqki5gEO26MmUlg==, figureFileBig=fCPQkbg/CP5KxhTGQaZkmg==, tableContent=null), ArticleFig(id=1241057546316862330, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241046464793727717, language=CN, label=图8, caption=
水下台阶EDEM模型(单位:cm), figureFileSmall=txG9DypOqki5gEO26MmUlg==, figureFileBig=fCPQkbg/CP5KxhTGQaZkmg==, tableContent=null), ArticleFig(id=1241057546463662978, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241046464793727717, language=EN, label=Fig. 9, caption=
Blasting breakage effect of different resistance lines, figureFileSmall=YiGpaHbrF0/6DqEFpKs3JA==, figureFileBig=7KxN9z4TEIo2G+xfrkMBlQ==, tableContent=null), ArticleFig(id=1241057546585297803, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241046464793727717, language=CN, label=图9, caption=
不同抵抗线爆破破碎效果, figureFileSmall=YiGpaHbrF0/6DqEFpKs3JA==, figureFileBig=7KxN9z4TEIo2G+xfrkMBlQ==, tableContent=null), ArticleFig(id=1241057546765652889, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241046464793727717, language=EN, label=Table 1, caption=
EDEM model parameters of rock mass
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数名称 | 颗粒 | 岩体壁面 | 平行键参数 |
|---|
| 密度/(kg·m-3) | 2650 | 2650 | 法向刚度/(GPa·m-1) | 30.52 |
| 杨氏模量/GPa | 44.09 | 44.09 | 切向刚度/(GPa·m-1) | 12.208 |
| 泊松比 | 0.35 | 0.35 | 最大法向应力/MPa | 15.76 |
| 恢复系数 | 0.2 | 0.15 | 最大切向应力/MPa | 7.9 |
| 静摩擦系数 | 0.5 | 0.5 | 平行键半径/mm | 10.2 |
| 滚动摩擦系数 | 0.01 | 0.01 | | |
), ArticleFig(id=1241057546895676322, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241046464793727717, language=CN, label=表1, caption=
岩体EDEM模型参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数名称 | 颗粒 | 岩体壁面 | 平行键参数 |
|---|
| 密度/(kg·m-3) | 2650 | 2650 | 法向刚度/(GPa·m-1) | 30.52 |
| 杨氏模量/GPa | 44.09 | 44.09 | 切向刚度/(GPa·m-1) | 12.208 |
| 泊松比 | 0.35 | 0.35 | 最大法向应力/MPa | 15.76 |
| 恢复系数 | 0.2 | 0.15 | 最大切向应力/MPa | 7.9 |
| 静摩擦系数 | 0.5 | 0.5 | 平行键半径/mm | 10.2 |
| 滚动摩擦系数 | 0.01 | 0.01 | | |
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