Article(id=1241442324539036232, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241442313185063097, articleNumber=null, orderNo=null, doi=10.3963/j.issn.1001-487X.2023.01.007, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1666368000000, receivedDateStr=2022-10-22, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1773912515053, onlineDateStr=2026-03-19, pubDate=1677600000000, pubDateStr=2023-03-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773912515053, onlineIssueDateStr=2026-03-19, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773912515053, creator=13701087609, updateTime=1773912515053, updator=13701087609, issue=Issue{id=1241442313185063097, tenantId=1146029695717560320, journalId=1240670690148397066, year='2023', volume='40', issue='1', pageStart='1', pageEnd='220', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773912512346, creator=13701087609, updateTime=1773912765519, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241443375145079400, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241442313185063097, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241443375145079401, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241442313185063097, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=50, endPage=56, ext={EN=ArticleExt(id=1241442324828443224, articleId=1241442324539036232, tenantId=1146029695717560320, journalId=1240670690148397066, language=EN, title=Optimization Research of Air Decking Charge Structure for Bench Blasting based on JKSimBlast, columnId=1240702072862069231, journalTitle=Blasting, columnName=BLASTING IN ORE AND ROCK, runingTitle=null, highlight=null, articleAbstract=
Since continuous charge structure is adopted in the bench blasting of Heigou open-pit mining area, the boulder yield is high and the secondary crushing workload is large, which seriously affects the operation efficiency of the mine's subsequent production and loading shovel loading process. In order to optimize the open-pit blasting charge structure, the 2DBench module for open-pit mining in the blasting simulation software JKSimBlast is used. Taking the length and the position of the commonly used air decking as the research objects and the boulder yield as the evaluation index, 25 groups of experiments with two factors and five levels are designed with the hole depth of 17.5 m and the charge length of 10 m. The simulation results show that with the same air deck length, the boulder yield decreases first and then increases with the deck position moving down, and thus there is an optimal deck position. With the same deck position, the boulder yield decreases first and then increases with the increase of the air deck length. Furthermore, the optimal air deck length is determined as 2 m and the optimal deck position is 11.5 m from the orifice. Finally, field industrial tests with the optimized structure are carried out in 5 different blasting areas. The blasting muck pile photos before and after optimization in area 3 is selected as the reference group. By comparison, the results show that the optimized charge structure reduces the boulder yield by an average of 9.24% and effectively improves the blasting effect, which provides a useful reference for the selection and optimization of the charge structure in open pit mines.
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黑沟矿区露天台阶爆破采用连续装药结构,爆破后大块率高,二次破碎工作量大,严重影响矿山后续铲装作业效率。基于爆破模拟软件JKSimBlast中露天开采2DBench模块,开展露天爆破装药结构优化研究。选择常用空气间隔器作为间隔材料,保持炮孔深度17.5 m和装药长度10 m不变,以空气间隔器长度、中间间隔位置为研究对象,以大块率为评价指标,设计两因素五水平共计25组全因素组合实验。模拟结果表明空气间隔长度相同时随着间隔位置下移,爆破大块率先减小后又增大,存在一个最佳间隔位置。间隔位置相同时随间隔长度增大大块率先减小后增大,进而确定最佳间隔长度2 m与最佳间隔位置距离孔口11.5 m。最后,基于优化结构在5个不同爆破区域开展现场工业试验,选取区域3优化前后爆堆照片作为参考组,利用Split-Desktop爆破分析软件进行数据处理,得到5个区域优化前后大块率并进行比对,结果显示优化后的装药结构爆破后大块率平均降低9.24%,优化后的间隔装药结构有效改善爆破效果,为露天矿装药结构选择和优化提供有益借鉴。
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, authorsList=李章超, 徐帅, 李金平, 纪旭波)}, authors=[Author(id=1241442331719684921, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=2336483167@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241442331820348226, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, authorId=1241442331719684921, language=EN, stringName=Zhang-chao LI, firstName=Zhang-chao, middleName=null, lastName=LI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.Key Laboratory of Ministry of Education for Safe Mining of Deep Metal Mines, Northeastern University, Shenyang 110819, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241442332126532432, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, authorId=1241442331719684921, language=CN, stringName=李章超, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.东北大学 深部金属矿山安全开采教育部重点实验室,沈阳 110819, bio={"content":"
李章超(1997-),男,云南昭通人,硕士研究生,从事爆破填塞研究,(E-mail)2336483167@qq.com。
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李章超(1997-),男,云南昭通人,硕士研究生,从事爆破填塞研究,(E-mail)2336483167@qq.com。
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1.东北大学 深部金属矿山安全开采教育部重点实验室,沈阳 110819)])]), Author(id=1241442332621460347, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, orderNo=2, 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=1241442332751483788, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, authorId=1241442332621460347, language=EN, stringName=Jin-ping LI, firstName=Jin-ping, middleName=null, lastName=LI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2.Jiuquan Iron and Steel Group Co., Ltd., Jingtieshan Mining Co., Ltd., Jiayuguan 735100, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241442332873118615, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, authorId=1241442332621460347, language=CN, stringName=李金平, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2.酒泉钢铁集团有限责任公司 镜铁山矿业有限公司,嘉峪关 735100, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1241442331493192487, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, xref=2., ext=[AuthorCompanyExt(id=1241442331501581098, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, companyId=1241442331493192487, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1.Key Laboratory of Ministry of Education for Safe Mining of Deep Metal Mines, Northeastern University, Shenyang 110819, China
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1.东北大学 深部金属矿山安全开采教育部重点实验室,沈阳 110819
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Schematic diagram of blasting design steps, figureFileSmall=JsokJGwOayGnZ3vRn91OFg==, figureFileBig=CejMtkSP/TviBnibUetZgg==, tableContent=null), ArticleFig(id=1241442335955931196, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=CN, label=图1, caption=
爆破设计步骤示意图, figureFileSmall=JsokJGwOayGnZ3vRn91OFg==, figureFileBig=CejMtkSP/TviBnibUetZgg==, tableContent=null), ArticleFig(id=1241442336174035021, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=EN, label=Fig. 2, caption=
Schematic diagram of the detonation network, figureFileSmall=I9TqlQlJJuWl9HhJnkP9Qw==, figureFileBig=Y8jWaSTCooTtAVD8Iyv46w==, tableContent=null), ArticleFig(id=1241442336304058452, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=CN, label=图2, caption=
起爆网路示意图, figureFileSmall=I9TqlQlJJuWl9HhJnkP9Qw==, figureFileBig=Y8jWaSTCooTtAVD8Iyv46w==, tableContent=null), ArticleFig(id=1241442336413110366, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=EN, label=Fig. 3, caption=
Schematic diagram of three kinds of air decking, figureFileSmall=OF7aQWokmXRv2NL7wdwPTQ==, figureFileBig=4sJPpRHQx+yhWHEs7lp2rw==, tableContent=null), ArticleFig(id=1241442336597659758, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=CN, label=图3, caption=
三种空气间隔示意图, figureFileSmall=OF7aQWokmXRv2NL7wdwPTQ==, figureFileBig=4sJPpRHQx+yhWHEs7lp2rw==, tableContent=null), ArticleFig(id=1241442336723488886, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=EN, label=Fig. 4, caption=
Variation curve of boulder yield with fragmentation size under continuous charge, figureFileSmall=uS/8yR4EE4Gy5lijyDJ1cw==, figureFileBig=IjzQEbW4yIEYWgiUvKuETw==, tableContent=null), ArticleFig(id=1241442336815763581, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=CN, label=图4, caption=
连续装药大块率随块度尺寸变化曲线, figureFileSmall=uS/8yR4EE4Gy5lijyDJ1cw==, figureFileBig=IjzQEbW4yIEYWgiUvKuETw==, tableContent=null), ArticleFig(id=1241442336933204103, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=EN, label=Fig. 5, caption=
Variation curve of boulder yield with different deck positions under the same deck length, figureFileSmall=Q3cvIyKJov1Vi6soc5B8cA==, figureFileBig=CPPgc+W/QCaANz8D4kQiiw==, tableContent=null), ArticleFig(id=1241442337063227539, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=CN, label=图5, caption=
间隔长度相同下大块率随不同间隔位置变化曲线, figureFileSmall=Q3cvIyKJov1Vi6soc5B8cA==, figureFileBig=CPPgc+W/QCaANz8D4kQiiw==, tableContent=null), ArticleFig(id=1241442337201639578, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=EN, label=Fig. 6, caption=
Variation curve of boulder yield with different deck length under the same deck position, figureFileSmall=HAtVWxx+Cs/ire4hgugJRQ==, figureFileBig=DuUdNWPO2DwGLNYdPgqysA==, tableContent=null), ArticleFig(id=1241442337314885794, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=CN, label=图6, caption=
间隔位置相同下大块率随不同间隔长度变化曲线, figureFileSmall=HAtVWxx+Cs/ire4hgugJRQ==, figureFileBig=DuUdNWPO2DwGLNYdPgqysA==, tableContent=null), ArticleFig(id=1241442337449103531, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=EN, label=Fig. 7, caption=
Process picture of blasting fragmentation processing, figureFileSmall=sbJwfuhD2KFdil2dAfK3RQ==, figureFileBig=On9oXHUi/hW/LN3KfxlfOA==, tableContent=null), ArticleFig(id=1241442337553961132, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=CN, label=图7, caption=
爆破块度处理过程图片, figureFileSmall=sbJwfuhD2KFdil2dAfK3RQ==, figureFileBig=On9oXHUi/hW/LN3KfxlfOA==, tableContent=null), ArticleFig(id=1241442337675595957, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=EN, label=Fig. 8, caption=
Split-Desktop block processing curve, figureFileSmall=2is/cdesKWd/vjCipNr5Kg==, figureFileBig=51B3BelQDWfD9v2aDAnHOQ==, tableContent=null), ArticleFig(id=1241442337830785217, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=CN, label=图8, caption=
Split-Desktop块度处理曲线, figureFileSmall=2is/cdesKWd/vjCipNr5Kg==, figureFileBig=51B3BelQDWfD9v2aDAnHOQ==, tableContent=null), ArticleFig(id=1241442337981780169, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=EN, label=Fig. 9, caption=
Boulder yield statistics table before and after optimization, figureFileSmall=2sL2cHaaaCXk0V4RXgoLlg==, figureFileBig=Rc/E1uavHs7P2np78hP+fQ==, tableContent=null), ArticleFig(id=1241442338132775121, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=CN, label=图9, caption=
优化前后大块率统计表, figureFileSmall=2sL2cHaaaCXk0V4RXgoLlg==, figureFileBig=Rc/E1uavHs7P2np78hP+fQ==, tableContent=null), ArticleFig(id=1241442338262798551, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=EN, label=Table 1, caption=
Experimental results of rock mechanics in the mining area
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| 岩性 | 单轴抗压强度/MPa | 抗拉强度/MPa | 弹性模量/GPa | 泊松比 | 内摩擦角 | 内聚力/MPa |
|---|
| 灰绿千枚岩 | 86.74 | 9.33 | 37.73 | 0.17 | 29°6′ | 12.69 |
| 铁质千枚岩 | 234.80 | 12.83 | 121.66 | 0.24 | 49°43′ | 24.17 |
| 白云岩 | 137.57 | 12.80 | 115.26 | 0.20 | 57°30′ | 25.37 |
| 镜铁矿岩 | 115.30 | 11.61 | 100.33 | 0.23 | 73°8′ | 4.75 |
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矿区岩石力学测试结果
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| 岩性 | 单轴抗压强度/MPa | 抗拉强度/MPa | 弹性模量/GPa | 泊松比 | 内摩擦角 | 内聚力/MPa |
|---|
| 灰绿千枚岩 | 86.74 | 9.33 | 37.73 | 0.17 | 29°6′ | 12.69 |
| 铁质千枚岩 | 234.80 | 12.83 | 121.66 | 0.24 | 49°43′ | 24.17 |
| 白云岩 | 137.57 | 12.80 | 115.26 | 0.20 | 57°30′ | 25.37 |
| 镜铁矿岩 | 115.30 | 11.61 | 100.33 | 0.23 | 73°8′ | 4.75 |
), ArticleFig(id=1241442338552205547, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=EN, label=Table 2, caption=
Explosive parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
| 炸药类型 | 密度/(g·cm-3) | 爆速/(m·s-1) | 平均能量密度/(MJ·kg-1) |
|---|
| 乳化铵油炸药 | 1.13 | 4900 | 3.182 |
), ArticleFig(id=1241442340062154991, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=CN, label=表2, caption=
炸药参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 炸药类型 | 密度/(g·cm-3) | 爆速/(m·s-1) | 平均能量密度/(MJ·kg-1) |
|---|
| 乳化铵油炸药 | 1.13 | 4900 | 3.182 |
), ArticleFig(id=1241442340192178423, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=EN, label=Table 3, caption=
Test factors and value table
, figureFileSmall=null, figureFileBig=null, tableContent=
| 间隔长度/m | 1.5 | 1.75 | 2 | 2.25 | 2.5 |
|---|
| 间隔位置/m | 10.5 | 11.5 | 12.5 | 13.5 | 14.5 |
), ArticleFig(id=1241442340326396156, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=CN, label=表3, caption=
试验因素及其取值表
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| 间隔长度/m | 1.5 | 1.75 | 2 | 2.25 | 2.5 |
|---|
| 间隔位置/m | 10.5 | 11.5 | 12.5 | 13.5 | 14.5 |
), ArticleFig(id=1241442340431253761, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=EN, label=Table 4, caption=
Distribution table of boulder yield after simulation of 25 groups of experimental programs
, figureFileSmall=null, figureFileBig=null, tableContent=
| 间隔位置 | 间隔长度 |
|---|
| 1.5 m | 1.75 m | 2 m | 2.25 m | 2.5 m |
|---|
| 10.5 m | 41.25 | 36.05 | 32.77 | 37.66 | 41.55 |
| 11.5 m | 32.26 | 22.59 | 7.56 | 31.15 | 35.44 |
| 12.5 m | 40.00 | 32.16 | 20.13 | 34.71 | 40.77 |
| 13.5 m | 28.39 | 21.56 | 16.17 | 25.61 | 30.51 |
| 14.5 m | 39.84 | 36.73 | 32.94 | 36.53 | 39.67 |
), ArticleFig(id=1241442340557082886, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=CN, label=表4, caption=
25组实验方案模拟后大块率分布表
, figureFileSmall=null, figureFileBig=null, tableContent=
| 间隔位置 | 间隔长度 |
|---|
| 1.5 m | 1.75 m | 2 m | 2.25 m | 2.5 m |
|---|
| 10.5 m | 41.25 | 36.05 | 32.77 | 37.66 | 41.55 |
| 11.5 m | 32.26 | 22.59 | 7.56 | 31.15 | 35.44 |
| 12.5 m | 40.00 | 32.16 | 20.13 | 34.71 | 40.77 |
| 13.5 m | 28.39 | 21.56 | 16.17 | 25.61 | 30.51 |
| 14.5 m | 39.84 | 36.73 | 32.94 | 36.53 | 39.67 |
), ArticleFig(id=1241442340670329101, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=EN, label=Table 5, caption=
Field test parameter table
, figureFileSmall=null, figureFileBig=null, tableContent=
| | 位置1 | 位置2 | 位置3 | 位置4 | 位置5 |
|---|
| 优化前 | 优化后 | 优化前 | 优化后 | 优化前 | 优化后 | 优化前 | 优化后 | 优化前 | 优化后 |
|---|
| 填塞/m | 7.5 | 5.5 | 7.5 | 5.5 | 7.5 | 5.5 | 7 | 5 | 7 | 5 |
| 装药/m | 4 | 4 | 4 | 4 | 4 | 4 | 4.5 | 4.5 | 4.5 | 4.5 |
| 空气/m | 0 | 2 | 0 | 2 | 0 | 2 | 0 | 2 | 0 | 2 |
| 装药/m | 6 | 6 | 5.5 | 5.5 | 6.5 | 6.5 | 6 | 6 | 5.5 | 6.5 |
), ArticleFig(id=1241442340745826581, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324539036232, language=CN, label=表5, caption=
现场试验参数表
, figureFileSmall=null, figureFileBig=null, tableContent=
| | 位置1 | 位置2 | 位置3 | 位置4 | 位置5 |
|---|
| 优化前 | 优化后 | 优化前 | 优化后 | 优化前 | 优化后 | 优化前 | 优化后 | 优化前 | 优化后 |
|---|
| 填塞/m | 7.5 | 5.5 | 7.5 | 5.5 | 7.5 | 5.5 | 7 | 5 | 7 | 5 |
| 装药/m | 4 | 4 | 4 | 4 | 4 | 4 | 4.5 | 4.5 | 4.5 | 4.5 |
| 空气/m | 0 | 2 | 0 | 2 | 0 | 2 | 0 | 2 | 0 | 2 |
| 装药/m | 6 | 6 | 5.5 | 5.5 | 6.5 | 6.5 | 6 | 6 | 5.5 | 6.5 |
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