Article(id=1149741768234677216, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1149741761771258326, articleNumber=1003-3033(2024)02-0192-08, orderNo=null, doi=10.16265/j.cnki.issn1003-3033.2024.02.0319, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1691856000000, receivedDateStr=2023-08-13, revisedDate=1700236800000, revisedDateStr=2023-11-18, acceptedDate=null, acceptedDateStr=null, onlineDate=1752049398716, onlineDateStr=2025-07-09, pubDate=1709049600000, pubDateStr=2024-02-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752049398716, onlineIssueDateStr=2025-07-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752049398716, creator=13701087609, updateTime=1752049398716, updator=13701087609, issue=Issue{id=1149741761771258326, tenantId=1146029695717560320, journalId=1146031787341344770, year='2024', volume='34', issue='2', pageStart='1', pageEnd='252', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1752049397175, creator=13701087609, updateTime=1756468934610, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1168278645379440971, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1149741761771258326, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1168278645379440972, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1149741761771258326, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=192, endPage=199, ext={EN=ArticleExt(id=1149741768922543080, articleId=1149741768234677216, tenantId=1146029695717560320, journalId=1146031787341344770, language=EN, title=Study on influence of initiation sequence on fragmentation of step rock and blasting vibration, columnId=1149733269173878863, journalTitle=China Safety Science Journal, columnName=Safety engineering technology, runingTitle=null, highlight=null, articleAbstract=
In order to explore the influence of initiation sequence on the crushing effect of open steps and the surrounding environment,the LS-DYNA simulation software was used to calculate the step blasting model under different initiation sequences. First,the physical and mechanical characteristics of the model under different initiation orders were analyzed. Then,the field test was conducted to verify the simulation results and study the influence of the initiation sequence on the blasting vibration strength and rock crushing degree. The results show that the stacking effect,which changes the stress wave,shows the breaking effect and blasting vibration strength. The hole-by-hole blasting technology can effectively reduce the blasting vibration so as to reduce the adverse effects on the surrounding environment,but the rock-crushing effect is not ideal; the rock passing rate is 81.52%. Compared with the hole-by-hole blasting,the passing rate of wave sequential blasting gravel is increased by 11.68%,and the amount of single-hole collapse is increased by 16.8% when the hole net parameter is increased to 3 m×7 m,which effectively reduces the explosive consumption and reduces the comprehensive cost. However,it produces a large blasting vibration strength,which needs to pay attention to the impact on the surrounding environment.
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为探究起爆顺序对露天台阶岩石破碎效果以及周围环境的影响,利用LS-DYNA仿真软件分别计算不同起爆顺序下的台阶爆破模型。分析不同起爆顺序下模型的物理力学特征;开展现场试验验证模拟结果,并分析起爆顺序对爆破振动强度及岩石破碎块度的影响特征。研究结果表明:起爆顺序对爆破过程中自由面空间分布产生影响,从而改变应力波的叠加效应,不同起爆顺序下台阶破碎效果及爆破振动强度表现出明显差异。逐孔起爆技术能够有效降低爆破振动,从而减轻对周围环境的不良影响,但其岩石破碎效果并不理想,岩石通过率为81.52%。与逐孔起爆相比,波浪式顺序起爆碎石通过率提高11.68%,增大孔网参数至3 m×7 m时单孔崩落矿量提高16.8%,这可以有效减少炸药消耗量,降低综合成本。然而,其产生的爆破振动强度较大,需要注意对周围环境的影响。
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段继超 (1997—),男,安徽宿州人,博士研究生,主要研究方向为爆破与冲击动力学。E-mail:djc19971005@163.com。
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段继超 (1997—),男,安徽宿州人,博士研究生,主要研究方向为爆破与冲击动力学。E-mail:djc19971005@163.com。
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23(5):44-49., articleTitle=Study on safety of frame construction impacted by open-pit blasting seismic wave, refAbstract=null)], funds=[Fund(id=1168128910983177155, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, awardId=2023AH051167, language=CN, fundingSource=安徽高校自然科学研究项目(2023AH051167), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1168128906499466114, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, xref=null, ext=[AuthorCompanyExt(id=1168128906503660419, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, companyId=1168128906499466114, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=College of Civil Architecture,Anhui University of Science and Technology,Huainan Anhui 232001,China), AuthorCompanyExt(id=1168128906512049028, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, companyId=1168128906499466114, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=安徽理工大学 土木建筑学院,安徽 淮南 232001)])], figs=[ArticleFig(id=1168128908227519395, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=EN, label=Fig.1, caption=
Effect of different explosives on blasting funnel, figureFileSmall=fDbERUqyyEmVD052UsGzxA==, figureFileBig=p74/r2r4Ao5rtU677v2MrA==, tableContent=null), ArticleFig(id=1168128908298822564, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=CN, label=图1, caption=
不同炸药爆破漏斗效果, figureFileSmall=fDbERUqyyEmVD052UsGzxA==, figureFileBig=p74/r2r4Ao5rtU677v2MrA==, tableContent=null), ArticleFig(id=1168128908391097253, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=EN, label=Fig.2, caption=
Step SPH-FEM modeling schematic diagram, figureFileSmall=qaZGZ8+8yo+IdsxD5K/xiA==, figureFileBig=GcmfwAlgwJDY4FBE3Kcruw==, tableContent=null), ArticleFig(id=1168128908491760550, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=CN, label=图2, caption=
台阶SPH-FEM建模, figureFileSmall=qaZGZ8+8yo+IdsxD5K/xiA==, figureFileBig=GcmfwAlgwJDY4FBE3Kcruw==, tableContent=null), ArticleFig(id=1168128908584035239, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=EN, label=Fig.3, caption=
Initiation sequence, figureFileSmall=Pq8XoFo5Cl+gDGZBsS6pXA==, figureFileBig=MKp5xqZMvFg+lD7gfv6JFw==, tableContent=null), ArticleFig(id=1168128908697281448, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=CN, label=图3, caption=
起爆顺序, figureFileSmall=Pq8XoFo5Cl+gDGZBsS6pXA==, figureFileBig=MKp5xqZMvFg+lD7gfv6JFw==, tableContent=null), ArticleFig(id=1168128908756001705, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=EN, label=Fig.4, caption=
Pressure contrast curves of adjacent SPH and FEM, figureFileSmall=NFI5izIfXAB5eBaxKHcQJg==, figureFileBig=iWXjvOgEQyEAzkl9NDEKUQ==, tableContent=null), ArticleFig(id=1168128908839887786, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=CN, label=图4, caption=
相邻SPH与FEM压力对比曲线, figureFileSmall=NFI5izIfXAB5eBaxKHcQJg==, figureFileBig=iWXjvOgEQyEAzkl9NDEKUQ==, tableContent=null), ArticleFig(id=1168128908906996651, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=EN, label=Fig.5, caption=
Pressure distribution of bench blasting and SPH throwing diagram, figureFileSmall=MHr0vIOTZdYy8ibiEjt5gg==, figureFileBig=GEhbeAtfo/sU37bULrISJg==, tableContent=null), ArticleFig(id=1168128908969911212, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=CN, label=图5, caption=
台阶爆破压力分布及SPH抛掷图, figureFileSmall=MHr0vIOTZdYy8ibiEjt5gg==, figureFileBig=GEhbeAtfo/sU37bULrISJg==, tableContent=null), ArticleFig(id=1168128909120906157, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=EN, label=Fig.6, caption=
The damaged cloud map of rock mass is preserved, figureFileSmall=ys3f8LiZYUGN2SWnAUVuGQ==, figureFileBig=BKd6rF7IIdrIsTRJW3CZ4w==, tableContent=null), ArticleFig(id=1168128909242540974, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=CN, label=图6, caption=
保留岩体损伤云图, figureFileSmall=ys3f8LiZYUGN2SWnAUVuGQ==, figureFileBig=BKd6rF7IIdrIsTRJW3CZ4w==, tableContent=null), ArticleFig(id=1168128909309649839, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=EN, label=Fig.7, caption=
Lay layout of calculation model monitoring points, figureFileSmall=GS2+iqFVEW2eLwBsg0b+Jw==, figureFileBig=szEShOOGW+YI+CLkbDwOjg==, tableContent=null), ArticleFig(id=1168128909372564400, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=CN, label=图7, caption=
计算模型监测点布置, figureFileSmall=GS2+iqFVEW2eLwBsg0b+Jw==, figureFileBig=szEShOOGW+YI+CLkbDwOjg==, tableContent=null), ArticleFig(id=1168128909431284657, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=EN, label=Fig.8, caption=
Retaining damage stress in typical position of rock mass, figureFileSmall=B2777yhKxCiWWGZH9rBnhw==, figureFileBig=S1VFI+uVnB/Giajt6HbUAw==, tableContent=null), ArticleFig(id=1168128909494199218, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=CN, label=图8, caption=
保留岩体典型位置损伤应力, figureFileSmall=B2777yhKxCiWWGZH9rBnhw==, figureFileBig=S1VFI+uVnB/Giajt6HbUAw==, tableContent=null), ArticleFig(id=1168128909561308083, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=EN, label=Fig.9, caption=
Vibration speed and displacement time-course curve of the monitoring point, figureFileSmall=BpMdzrasSfl04t/VrdytTQ==, figureFileBig=yR7HxtG/OyE24V7NsuC01g==, tableContent=null), ArticleFig(id=1168128909628416948, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=CN, label=图9, caption=
监测点振动速度和位移时程曲线, figureFileSmall=BpMdzrasSfl04t/VrdytTQ==, figureFileBig=yR7HxtG/OyE24V7NsuC01g==, tableContent=null), ArticleFig(id=1168128909687137205, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=EN, label=Fig.10, caption=
Time course curve of explosion seismic wave with different initiation sequence, figureFileSmall=KmvNU4jzAnz5+59FqW1CsQ==, figureFileBig=UvRkcg/zE4gB3VK+KBv9Gg==, tableContent=null), ArticleFig(id=1168128909758440374, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=CN, label=图10, caption=
不同起爆顺序爆炸地震波能量时程曲线, figureFileSmall=KmvNU4jzAnz5+59FqW1CsQ==, figureFileBig=UvRkcg/zE4gB3VK+KBv9Gg==, tableContent=null), ArticleFig(id=1168128909821354935, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=EN, label=Fig.11, caption=
Analysis of rock fragmentation degree, figureFileSmall=KyDxJKtSUPPzia2j6fMM9Q==, figureFileBig=V9qYnVCCNU8kQ/ucxxwI8g==, tableContent=null), ArticleFig(id=1168128909917823928, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=CN, label=图11, caption=
岩石破碎块度分析, figureFileSmall=KyDxJKtSUPPzia2j6fMM9Q==, figureFileBig=V9qYnVCCNU8kQ/ucxxwI8g==, tableContent=null), ArticleFig(id=1168128909984932793, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=EN, label=Tab.1, caption=
Sandstone HJC parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 取值 | 参数 | 取值 | 参数 | 取值 | 参数 | 取值 |
| 密度ρ0/(kg·m-3) | 2 688 | 抗拉强度T/MPa | 12.2 | 压力常数K1/GPa | 81 | 抗压强度fc/MPa | 157 |
| 特征化黏聚强度参数A | 0.32 | 弹性极限压力Pc/MPa | 51.33 | 压力常数K2/GPa | -91 | 损伤常数D1 | 0.041 |
| 压力强化参数B | 1.76 | 弹性极限体积应变μc | 2.76 | 压力常数K3/GPa | 89 | 损伤常数D2 | 1.0 |
| 应变率敏感系数C | 0.001 86 | 静水压力Pl/GPa | 0.012 | 最小断裂应变εfmin/s-1 | 0.01 | 剪切模量G/GPa | 26.54 |
| 特征化最大强度 | 7.0 | 塑性变形μl | 0.012 | 压力硬化系数N | 0.79 | 参考应变率 /s-1 | 1.0 |
), ArticleFig(id=1168128910077207482, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=CN, label=表1, caption=
砂岩HJC参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 取值 | 参数 | 取值 | 参数 | 取值 | 参数 | 取值 |
| 密度ρ0/(kg·m-3) | 2 688 | 抗拉强度T/MPa | 12.2 | 压力常数K1/GPa | 81 | 抗压强度fc/MPa | 157 |
| 特征化黏聚强度参数A | 0.32 | 弹性极限压力Pc/MPa | 51.33 | 压力常数K2/GPa | -91 | 损伤常数D1 | 0.041 |
| 压力强化参数B | 1.76 | 弹性极限体积应变μc | 2.76 | 压力常数K3/GPa | 89 | 损伤常数D2 | 1.0 |
| 应变率敏感系数C | 0.001 86 | 静水压力Pl/GPa | 0.012 | 最小断裂应变εfmin/s-1 | 0.01 | 剪切模量G/GPa | 26.54 |
| 特征化最大强度 | 7.0 | 塑性变形μl | 0.012 | 压力硬化系数N | 0.79 | 参考应变率 /s-1 | 1.0 |
), ArticleFig(id=1168128910152704955, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=EN, label=Tab.2, caption=
Parameters related to the explosive status
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炸药密度ρc/ (kg·m-3) | 爆速cd/ (m·s-1) | 压缩性系数 YJ/GPa | 相关性系数 XJ/GPa | 常数 ω | 高压段系数 R1 | 中压段系数 R2 | 炸药内能 E0/GPa |
| 1 250 | 3 200 | 2.76 | 23.3 | 0.28 | 5.25 | 1.60 | 8.56 |
), ArticleFig(id=1168128910215619516, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=CN, label=表2, caption=
炸药状态相关参数
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炸药密度ρc/ (kg·m-3) | 爆速cd/ (m·s-1) | 压缩性系数 YJ/GPa | 相关性系数 XJ/GPa | 常数 ω | 高压段系数 R1 | 中压段系数 R2 | 炸药内能 E0/GPa |
| 1 250 | 3 200 | 2.76 | 23.3 | 0.28 | 5.25 | 1.60 | 8.56 |
), ArticleFig(id=1168128910299505597, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=EN, label=Tab.3, caption=
Field test blasting vibration monitoring data
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起爆 方式 | 测点 | 测点位 移/m | 径向 | 切向 | 垂向 |
最大振速/ (cm·s-1) | 主频/ Hz | 最大振速/ (cm·s-1) | 主频/ Hz | 最大振速/ (cm·s-1) | 主频/ Hz |
逐孔 起爆 | 1 | 30 | -25.796 | 17.700 | -13.888 | 35.706 | 20.134 | 18.005 |
| 2 | 60 | -6.688 | 18.616 | 9.926 | 31.316 | -10.72 | 37.537 |
| 3 | 90 | 4.174 | 36.926 | -3.232 | 37.537 | 4.334 | 37.231 |
奇偶式顺 序起爆 | 1 | 30 | -33.581 | 18.005 | -15.233 | 19.836 | -27.692 | 17.700 |
| 2 | 60 | -11.895 | 18.616 | -13.460 | 18.92 | -10.269 | 20.142 |
| 3 | 90 | -7.311 | 40.283 | 11.410 | 36.926 | -6.354 | 19.531 |
波浪式顺 序起爆 | 1 | 30 | -35.708 | 49.4 | 30.475 | 18.005 | -25.179 | 19.226 |
| 2 | 60 | -33.918 | 59.814 | 7.722 | 19.531 | -15.416 | 19.836 |
| 3 | 90 | 13.551 | 18.616 | -10.365 | 21.362 | 12.408 | 18.616 |
), ArticleFig(id=1168128910442111934, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=CN, label=表3, caption=
现场试验爆破振动监测数据
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起爆 方式 | 测点 | 测点位 移/m | 径向 | 切向 | 垂向 |
最大振速/ (cm·s-1) | 主频/ Hz | 最大振速/ (cm·s-1) | 主频/ Hz | 最大振速/ (cm·s-1) | 主频/ Hz |
逐孔 起爆 | 1 | 30 | -25.796 | 17.700 | -13.888 | 35.706 | 20.134 | 18.005 |
| 2 | 60 | -6.688 | 18.616 | 9.926 | 31.316 | -10.72 | 37.537 |
| 3 | 90 | 4.174 | 36.926 | -3.232 | 37.537 | 4.334 | 37.231 |
奇偶式顺 序起爆 | 1 | 30 | -33.581 | 18.005 | -15.233 | 19.836 | -27.692 | 17.700 |
| 2 | 60 | -11.895 | 18.616 | -13.460 | 18.92 | -10.269 | 20.142 |
| 3 | 90 | -7.311 | 40.283 | 11.410 | 36.926 | -6.354 | 19.531 |
波浪式顺 序起爆 | 1 | 30 | -35.708 | 49.4 | 30.475 | 18.005 | -25.179 | 19.226 |
| 2 | 60 | -33.918 | 59.814 | 7.722 | 19.531 | -15.416 | 19.836 |
| 3 | 90 | 13.551 | 18.616 | -10.365 | 21.362 | 12.408 | 18.616 |
), ArticleFig(id=1168128910580523967, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=EN, label=Tab.4, caption=
Statistics of rock fragmentation block size in the burst zone
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| 起爆方式 | 孔网参 数/m×m | 占整体爆堆比例/% | 单孔爆落 矿量/t |
| ≤ 250 mm | (250,300] mm | (300,350] mm | (350,400] mm | ≥ 400 mm |
| 逐孔起爆 | 3×6 | 81.52 | 3.94 | 7.51 | 2.26 | 4.76 | 572.4 |
| 波浪式顺序起爆 | 93.21 | 6.79 | — | — | — |
| 奇偶式顺序起爆 | 87.20 | — | 1.74 | 11.06 | — |
), ArticleFig(id=1168128910681187264, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=CN, label=表4, caption=
爆区岩石破碎块度尺寸统计
, figureFileSmall=null, figureFileBig=null, tableContent=
| 起爆方式 | 孔网参 数/m×m | 占整体爆堆比例/% | 单孔爆落 矿量/t |
| ≤ 250 mm | (250,300] mm | (300,350] mm | (350,400] mm | ≥ 400 mm |
| 逐孔起爆 | 3×6 | 81.52 | 3.94 | 7.51 | 2.26 | 4.76 | 572.4 |
| 波浪式顺序起爆 | 93.21 | 6.79 | — | — | — |
| 奇偶式顺序起爆 | 87.20 | — | 1.74 | 11.06 | — |
), ArticleFig(id=1168128910756684737, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=EN, label=Tab.5, caption=
Increase the size statistics of rock crushing block in the burst area
, figureFileSmall=null, figureFileBig=null, tableContent=
| 起爆方式 | 孔网参 数/m×m | 占整体爆堆比例/% | 单孔爆落 矿量/t |
| ≤ 250 mm | (250,300] mm | (300,350] mm | (350,400] mm | ≥ 400 mm |
| 波浪式顺序起爆 | 3×7 | 80.33 | 5.33 | 1.74 | 10.9 | 1.70 | 667.8 |
| 奇偶式顺序起爆 | 73.6 | 8.56 | 2.22 | 5.66 | 9.96 |
), ArticleFig(id=1168128910823793602, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741768234677216, language=CN, label=表5, caption=
增大孔网参数爆区岩石破碎块度尺寸统计
, figureFileSmall=null, figureFileBig=null, tableContent=
| 起爆方式 | 孔网参 数/m×m | 占整体爆堆比例/% | 单孔爆落 矿量/t |
| ≤ 250 mm | (250,300] mm | (300,350] mm | (350,400] mm | ≥ 400 mm |
| 波浪式顺序起爆 | 3×7 | 80.33 | 5.33 | 1.74 | 10.9 | 1.70 | 667.8 |
| 奇偶式顺序起爆 | 73.6 | 8.56 | 2.22 | 5.66 | 9.96 |
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