Article(id=1322907511703089612, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322907425740825534, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1720195200000, receivedDateStr=2024-07-06, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793335329222, onlineDateStr=2026-10-30, pubDate=1750780800000, pubDateStr=2025-06-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793335329222, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793335329222, creator=13701087609, updateTime=1793335329222, updator=13701087609, issue=Issue{id=1322907425740825534, tenantId=1146029695717560320, journalId=1225396423026438145, year='2025', volume='45', issue='6', pageStart='1', pageEnd='300', issueExtLink='null', onlineDate='null', pubDate='1750780800000', pubDateStr='2025-06-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793335308726, creator='13701087609', updateTime=1793335308726, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=78, endPage=86, ext={EN=ArticleExt(id=1322907511875056077, articleId=1322907511703089612, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Optimization of Charge Structural Parameters of Fan-Shaped Blasthole in Breaking Ore-Rock Caving Method and Its Application, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=
The blasting quality of fan-shaped blasthole has a significant effect on the application effect of non-pillar sublevel caving method. In view of the problems such as serious damage of eyebrow line, uneven blasting fragmentation and large loss and dilution when the non-pillar sublevel caving method was used in the west second mining area of Longshou Mine under the condition of ore-rock breaking, ANSYS / LS-DYNA was used to optimize the charge structure parameters of the fan-shaped blasthole. The results show that the blasting effect of fan-shaped blasthole can be effectively improved using W-type staggered charge at orifice, hole bottom initiation and millisecond blasting in row. The optimized blasthole charge structure parameters are applied to the field production practice. The ore recovery rate is increased by about 36%, the ore dilution rate is reduced by about 31%, the bulk rate is reduced by 52%, and the damage of the eyebrow line is also significantly reduced.
, authors=Guoyu QIN
1, Zhen GONG
1, Jianyuan HE
1, Ganggang ZHANG
1, Dengfeng SU
2, Baohui TAN
2, Xu LU
2, authorsList=Guoyu QIN, Zhen GONG, Jianyuan HE, Ganggang ZHANG, Dengfeng SU, Baohui TAN, Xu LU, authorCompany=null, correspAuthors=Dengfeng SU, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1322907516232937964, articleId=1322907511703089612, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=破碎矿岩崩落法扇形炮孔装药结构参数优化研究及应用, columnId=1226462294490657775, journalTitle=矿业研究与开发, columnName=采矿与矿山充填, runingTitle=null, highlight=null, articleAbstract=
扇形炮孔的爆破质量对于无底柱分段崩落法的应用效果影响显著。针对龙首矿西二采区在矿岩破碎条件下,使用无底柱分段崩落法时出现的眉线破坏严重、爆破块度不均匀、损失贫化大等问题,采用ANSYS/LS-DYNA对落矿扇形炮孔的装药结构参数进行了优化研究。研究结果表明,采用孔口“W”形交错装药、孔底起爆以及排内微差爆破,可有效改善扇形炮孔的爆破效果。将优化的炮孔装药结构参数应用于现场生产实践,使矿石回采率提高了约36%,矿石贫化率降低了约31%,大块率降低52%,且眉线破坏的情况也得到了明显减少。
, authors=秦国玉
1, 龚臻
1, 何建元
1, 张刚刚
1, 粟登峰
2, 谭宝会
2, 鲁旭
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秦国玉(1979—),男,甘肃金昌人,硕士,高级工程师,主要从事矿山生产管理等方面工作。E-mail:814405947@qq.com
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秦国玉(1979—),男,甘肃金昌人,硕士,高级工程师,主要从事矿山生产管理等方面工作。E-mail:814405947@qq.com
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2016., articleTitle=null, refAbstract=null)], funds=[Fund(id=1322907525439435327, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, awardId=2022NSFSC1089, language=CN, fundingSource=四川省自然科学基金青年科学基金项目(2022NSFSC1089), fundOrder=null, country=null), Fund(id=1322907525519127104, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, awardId=GZSYS-KY-2021-022, language=CN, fundingSource=镍钴资源综合利用国家重点实验室开放课题(GZSYS-KY-2021-022), fundOrder=null, country=null), Fund(id=1322907525586235969, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, awardId=21zx7157, language=CN, fundingSource=西南科技大学博士基金项目(21zx7157), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1322907516463624685, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, xref=1., ext=[AuthorCompanyExt(id=1322907516472013294, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, companyId=1322907516463624685, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.Longshou Mine, Jinchuan Group Nickel and Cobalt Co., Ltd., Jinchang, Gansu 737100, China), AuthorCompanyExt(id=1322907516480401903, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, companyId=1322907516463624685, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.金川集团镍钴股份有限公司龙首矿,甘肃 金昌市 737100)]), AuthorCompany(id=1322907516551705072, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, xref=2., ext=[AuthorCompanyExt(id=1322907516560093681, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, companyId=1322907516551705072, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2.西南科技大学 环境与资源学院,四川 绵阳市 621010)])], figs=[ArticleFig(id=1322907521085747745, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=EN, label=Fig.1, caption=
Numerical calculation model of fan-patterned holes blasting for sublevel caving method without sill pillar, figureFileSmall=Nae/hxoJexfV3ZTrkTz7Ew==, figureFileBig=87mIAnjDztTEB08QW9CpPw==, tableContent=null), ArticleFig(id=1322907521165439522, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=CN, label=图1, caption=
无底柱分段崩落法扇形炮孔爆破数值计算模型, figureFileSmall=Nae/hxoJexfV3ZTrkTz7Ew==, figureFileBig=87mIAnjDztTEB08QW9CpPw==, tableContent=null), ArticleFig(id=1322907521366766115, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=EN, label=Fig.2, caption=
Different charge structure of fan-patterned boreholes, figureFileSmall=95pvlWms2BQ4P9N+8EZkeQ==, figureFileBig=+VWh4Ynf0Z/mzrPJrNOMfA==, tableContent=null), ArticleFig(id=1322907521442263588, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=CN, label=图2, caption=
扇形炮孔的不同装药结构, figureFileSmall=95pvlWms2BQ4P9N+8EZkeQ==, figureFileBig=+VWh4Ynf0Z/mzrPJrNOMfA==, tableContent=null), ArticleFig(id=1322907521530343973, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=EN, label=Fig.3, caption=
Distribution of bursting crack and stress time history curves for blasting without charge in large area hole openings, figureFileSmall=wcGreyQLLWTjfScLbPgKAw==, figureFileBig=dGGZEFvoihJXiJDYb1eAow==, tableContent=null), ArticleFig(id=1322907521639395878, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=CN, label=图3, caption=
孔口大面积不装药爆破的爆生裂纹分布与应力时程曲线, figureFileSmall=wcGreyQLLWTjfScLbPgKAw==, figureFileBig=dGGZEFvoihJXiJDYb1eAow==, tableContent=null), ArticleFig(id=1322907521702310439, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=EN, label=Fig.4, caption=
Burst crack and stress time history curves for blasting with "W" type staggered charge in hole openings, figureFileSmall=oKBrSohwheYfLG5CV4BzrA==, figureFileBig=7kWKoePKdcjk1Llz9cAZuQ==, tableContent=null), ArticleFig(id=1322907521765225000, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=CN, label=图4, caption=
孔口“W”形交错装药爆破的爆生裂纹与应力时程曲线, figureFileSmall=oKBrSohwheYfLG5CV4BzrA==, figureFileBig=7kWKoePKdcjk1Llz9cAZuQ==, tableContent=null), ArticleFig(id=1322907521836528169, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=EN, label=Fig.5, caption=
Distribution of bursting crack for initiation at different positions, figureFileSmall=XigiqN5o+HcDVlxQLKiYzw==, figureFileBig=h6qmWkreQxKP4DGNNbfDTA==, tableContent=null), ArticleFig(id=1322907523493278250, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=CN, label=图5, caption=
不同起爆位置时的爆生裂纹分布情况, figureFileSmall=XigiqN5o+HcDVlxQLKiYzw==, figureFileBig=h6qmWkreQxKP4DGNNbfDTA==, tableContent=null), ArticleFig(id=1322907523577164331, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=EN, label=Fig.6, caption=
Cloud diagrams of explosion stress wave for delay blasting in hole row, figureFileSmall=6YndyCnq7TOgzmvIo0jBUA==, figureFileBig=IyDJTLKv1aIXsoRSLmbP6A==, tableContent=null), ArticleFig(id=1322907523644273196, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=CN, label=图6, caption=
排内微差爆破的爆炸应力波云图, figureFileSmall=6YndyCnq7TOgzmvIo0jBUA==, figureFileBig=IyDJTLKv1aIXsoRSLmbP6A==, tableContent=null), ArticleFig(id=1322907523723964973, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=EN, label=Fig.7, caption=
Distribution of bursting crack and stress time history curves for delay blasting in hole row, figureFileSmall=2CeVQ2oc5VQEIUaAbZHN2w==, figureFileBig=9SszxiCqyuH5CzVzcSq1rA==, tableContent=null), ArticleFig(id=1322907523807851054, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=CN, label=图7, caption=
排内微差爆破的爆生裂纹分布与应力时程曲线, figureFileSmall=2CeVQ2oc5VQEIUaAbZHN2w==, figureFileBig=9SszxiCqyuH5CzVzcSq1rA==, tableContent=null), ArticleFig(id=1322907523874959919, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=EN, label=Fig.8, caption=
Borehole charging structure of field blasting experiments, figureFileSmall=ctzhPkvbkebLMJPlt7eNOQ==, figureFileBig=bFdXwfLo5SdacwnmEyrgmw==, tableContent=null), ArticleFig(id=1322907523942068784, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=CN, label=图8, caption=
现场爆破试验炮孔装药结构, figureFileSmall=ctzhPkvbkebLMJPlt7eNOQ==, figureFileBig=bFdXwfLo5SdacwnmEyrgmw==, tableContent=null), ArticleFig(id=1322907524021760561, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=EN, label=Fig.9, caption=
Field effects of optimized blasting scheme, figureFileSmall=kuG1ye8M2sMNulesyuT75A==, figureFileBig=kRPmF2Jj2zQwngFYx9boFw==, tableContent=null), ArticleFig(id=1322907524147589682, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=CN, label=图9, caption=
装药结构优化后的爆破效果, figureFileSmall=kuG1ye8M2sMNulesyuT75A==, figureFileBig=kRPmF2Jj2zQwngFYx9boFw==, tableContent=null), ArticleFig(id=1322907524231475763, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=EN, label=Table 1, caption=
Keywords for defining material models
, figureFileSmall=null, figureFileBig=null, tableContent=
| 物质 | 材料模型 | 状态方程 |
|---|
| 炸药 | MAT_HIGH_EXPLOSIVE_BURN | EOS_JWL |
| ALE空间 | MAT_HIGH_EXPLOSIVE_BURN | EOS_JWL |
| 矿体 | MAT_PLASTIC_KINEMATIC | — |
| 空气 | MAT_NULL | EOS_LINEAR_POLYNOMIAL |
), ArticleFig(id=1322907524302778932, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=CN, label=表1, caption=
材料模型定义关键字
, figureFileSmall=null, figureFileBig=null, tableContent=
| 物质 | 材料模型 | 状态方程 |
|---|
| 炸药 | MAT_HIGH_EXPLOSIVE_BURN | EOS_JWL |
| ALE空间 | MAT_HIGH_EXPLOSIVE_BURN | EOS_JWL |
| 矿体 | MAT_PLASTIC_KINEMATIC | — |
| 空气 | MAT_NULL | EOS_LINEAR_POLYNOMIAL |
), ArticleFig(id=1322907524399247925, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=EN, label=Table 2, caption=
Parameters of explosive and state equation
, figureFileSmall=null, figureFileBig=null, tableContent=
| 密度/(kg/m3) | 爆速/(m/s) | 爆压/MPa | EOS_JWL |
|---|
| A/MPa | B/MPa | R1 | R2 | ω |
|---|
| 1.20×103 | 3.3×103 | 8.2×103 | 8.65×105 | 1.39×103 | 4.60 | 1.15 | 0.3 |
), ArticleFig(id=1322907524743180854, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=CN, label=表2, caption=
炸药及状态方程参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 密度/(kg/m3) | 爆速/(m/s) | 爆压/MPa | EOS_JWL |
|---|
| A/MPa | B/MPa | R1 | R2 | ω |
|---|
| 1.20×103 | 3.3×103 | 8.2×103 | 8.65×105 | 1.39×103 | 4.60 | 1.15 | 0.3 |
), ArticleFig(id=1322907524810289719, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=EN, label=Table 3, caption=
Physical and mechanical parameters of ore-rock
, figureFileSmall=null, figureFileBig=null, tableContent=
| 密度/(kg/m3) | 动态抗压强度/MPa | 动态抗拉强度/MPa | 动态弹性模量/GPa | 泊松比 | 失效应变 |
|---|
| 2.7×103 | 547 | 18.75 | 118 | 0.25 | 0.05 |
), ArticleFig(id=1322907524889981496, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=CN, label=表3, caption=
矿岩的物理力学参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 密度/(kg/m3) | 动态抗压强度/MPa | 动态抗拉强度/MPa | 动态弹性模量/GPa | 泊松比 | 失效应变 |
|---|
| 2.7×103 | 547 | 18.75 | 118 | 0.25 | 0.05 |
), ArticleFig(id=1322907524965478969, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=EN, label=Table 4, caption=
Air material model and the parameters of state equation
, figureFileSmall=null, figureFileBig=null, tableContent=
| 密度/(kg/m3) | EOS_LINEAR_POLYNOMIAL |
|---|
| C0 | C1 | C2 | C3 | C4 | C5 | C6 | Va |
|---|
| 1.18 | 1.65 | 1.92 | –0.96×10–1 | 0.00 | 0.40 | 0.40 | 0.00 | 1.00 |
), ArticleFig(id=1322907525045170746, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=CN, label=表4, caption=
空气材料模型及状态方程参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 密度/(kg/m3) | EOS_LINEAR_POLYNOMIAL |
|---|
| C0 | C1 | C2 | C3 | C4 | C5 | C6 | Va |
|---|
| 1.18 | 1.65 | 1.92 | –0.96×10–1 | 0.00 | 0.40 | 0.40 | 0.00 | 1.00 |
), ArticleFig(id=1322907525108085307, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=EN, label=Table 5, caption=
Charging structure parameters of 43rd row boreholes in 8# drift
, figureFileSmall=null, figureFileBig=null, tableContent=
| 炮孔编号 | 炮孔深度/m | 装药长度/m | 雷管段位 |
|---|
| 设计深度 | 实际深度 | 设计长度 | 实际长度 |
|---|
| 1 | 7.7 | 7.7 | 6.7 | 6.5 | 3 |
| 2 | 10.6 | 10.6 | 8.6 | 7.6 | 3 |
| 3 | 11.1 | 11.0 | 3.1 | 3.0 | 3 |
| 4 | 15.2 | 14.0 | 14.2 | 13.0 | 1 |
| 5 | 16.8 | 16.0 | 6.9 | 6.0 | 1 |
| 6 | 19.1 | 19.1 | 16.1 | 16.1 | 1 |
| 7 | 16.8 | 16.0 | 6.9 | 6.0 | 1 |
| 8 | 15.2 | 14.0 | 14.2 | 13.0 | 1 |
| 9 | 11.1 | 11.0 | 3.1 | 3.0 | 3 |
| 10 | 10.6 | 10.0 | 8.6 | 7.0 | 3 |
| 11 | 7.7 | 7.0 | 6.7 | 6.0 | 3 |
| 合计 | 141.9 | 136.4 | 95.1 | 87.2 | — |
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8#进路第43排炮孔的装药结构参数
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| 炮孔编号 | 炮孔深度/m | 装药长度/m | 雷管段位 |
|---|
| 设计深度 | 实际深度 | 设计长度 | 实际长度 |
|---|
| 1 | 7.7 | 7.7 | 6.7 | 6.5 | 3 |
| 2 | 10.6 | 10.6 | 8.6 | 7.6 | 3 |
| 3 | 11.1 | 11.0 | 3.1 | 3.0 | 3 |
| 4 | 15.2 | 14.0 | 14.2 | 13.0 | 1 |
| 5 | 16.8 | 16.0 | 6.9 | 6.0 | 1 |
| 6 | 19.1 | 19.1 | 16.1 | 16.1 | 1 |
| 7 | 16.8 | 16.0 | 6.9 | 6.0 | 1 |
| 8 | 15.2 | 14.0 | 14.2 | 13.0 | 1 |
| 9 | 11.1 | 11.0 | 3.1 | 3.0 | 3 |
| 10 | 10.6 | 10.0 | 8.6 | 7.0 | 3 |
| 11 | 7.7 | 7.0 | 6.7 | 6.0 | 3 |
| 合计 | 141.9 | 136.4 | 95.1 | 87.2 | — |
), ArticleFig(id=1322907525259080253, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=EN, label=Table 6, caption=
Charging structure parameters of 33rd row boreholes in 9# drift
, figureFileSmall=null, figureFileBig=null, tableContent=
| 炮孔编号 | 炮孔深度/m | 装药长度/m | 雷管段位 |
|---|
| 设计深度 | 实际深度 | 设计长度 | 实际长度 |
|---|
| 1 | 7.7 | 6.5 | 6.7 | 5.5 | 3 |
| 2 | 10.6 | 10.0 | 8.6 | 7.0 | 3 |
| 3 | 11.1 | 11.1 | 3.1 | 3.0 | 3 |
| 4 | 15.2 | 13.0 | 14.2 | 12.0 | 1 |
| 5 | 16.8 | 16.0 | 6.9 | 6.0 | 1 |
| 6 | 19.1 | 19.0 | 16.1 | 16.0 | 1 |
| 7 | 16.8 | 16.8 | 6.9 | 6.8 | 1 |
| 8 | 15.2 | 15.0 | 14.2 | 14.0 | 1 |
| 9 | 11.1 | 10.5 | 3.1 | 3.0 | 3 |
| 10 | 10.6 | 10.0 | 8.6 | 7.0 | 3 |
| 11 | 7.7 | 7.7 | 6.7 | 6.0 | 3 |
| 合计 | 141.9 | 136.1 | 95.1 | 86.3 | — |
), ArticleFig(id=1322907525330383422, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907511703089612, language=CN, label=表6, caption=
9#进路第33排炮孔的装药结构参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 炮孔编号 | 炮孔深度/m | 装药长度/m | 雷管段位 |
|---|
| 设计深度 | 实际深度 | 设计长度 | 实际长度 |
|---|
| 1 | 7.7 | 6.5 | 6.7 | 5.5 | 3 |
| 2 | 10.6 | 10.0 | 8.6 | 7.0 | 3 |
| 3 | 11.1 | 11.1 | 3.1 | 3.0 | 3 |
| 4 | 15.2 | 13.0 | 14.2 | 12.0 | 1 |
| 5 | 16.8 | 16.0 | 6.9 | 6.0 | 1 |
| 6 | 19.1 | 19.0 | 16.1 | 16.0 | 1 |
| 7 | 16.8 | 16.8 | 6.9 | 6.8 | 1 |
| 8 | 15.2 | 15.0 | 14.2 | 14.0 | 1 |
| 9 | 11.1 | 10.5 | 3.1 | 3.0 | 3 |
| 10 | 10.6 | 10.0 | 8.6 | 7.0 | 3 |
| 11 | 7.7 | 7.7 | 6.7 | 6.0 | 3 |
| 合计 | 141.9 | 136.1 | 95.1 | 86.3 | — |
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