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Smooth blasting in tunnel construction needs decked charge in the peripheral holes. However, this charging method has certain limitations and risk of misfire due to the usage of detonating cord together with detonator. So, it is an urgent problem to improve the effect of smooth blasting and ensure tunnel excavation efficiency at the same time. Related research was conducted by field tests, and a new initiation technology of “Shaped device + digital electronic detonator” has been proposed, which was applied to a plateau tunnel. The experimental results show that, compared with the original technology, the powder factor by using the new technology has been reduced by 0.2 kg/m3, the half-hole rate is increased by 5%, and the average charge time is reduced from the original 1.3 h to 1.0 h. The tunnel excavation cycle footage is stabilized, and the cost of consumables is greatly reduced, and it is expected to be widely used in tunnel smooth blasting.
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SUN Yong (1971-), male, professor, mainly engaged in tunnel engineering and blasting engineering related teaching and research work, (E-mail)
skd996768@sdust.edu.cn.
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隧道光面爆破工程的周边孔需要采用间隔装药方式,而大部分间隔装药方式采用“导爆索+雷管”联合起爆技术,此技术具有一定的局限性且经常发生拒爆现象。如何在保证隧道掘进效率的前提下提高光面爆破效果成为目前亟待解决的难题,从现场试验方面开展相关研究,提出“聚能装置+数码电子雷管”新型联合起爆技术,将其应用于高原某隧道,通过与原始的“导爆索+数码电子雷管”联合起爆技术的爆破后效果进行对比分析。实验结果表明:对比原始技术,新技术炸药单耗降低了0.2 kg/m3,半孔留痕率提高了5%,平均装药时间由原来的1.3 h降为1.0 h,稳定循环进尺的同时极大降低了耗材费用,提高了隧道光面爆破效果。
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王清标(1973-),男,教授、博导,主要从事岩土工程相关的教学与科研工作,(E-mail)skd990748@sdust.edu.cn。
WANG Qing-biao (1973-), male, professor, doctoral supervisor, mainly engaged in geotechnical engineering related teaching and research work, (E-mail) skd990748@sdust.edu.cn.
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王清标(1973-),男,教授、博导,主要从事岩土工程相关的教学与科研工作,(E-mail)skd990748@sdust.edu.cn。
WANG Qing-biao (1973-), male, professor, doctoral supervisor, mainly engaged in geotechnical engineering related teaching and research work, (E-mail) skd990748@sdust.edu.cn.
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王清标(1973-),男,教授、博导,主要从事岩土工程相关的教学与科研工作,(E-mail)skd990748@sdust.edu.cn。
WANG Qing-biao (1973-), male, professor, doctoral supervisor, mainly engaged in geotechnical engineering related teaching and research work, (E-mail) skd990748@sdust.edu.cn.
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23(2): 80-84. (in Chinese), articleTitle=Application of PVC spacer charging surface blasting technology in tunneling blasting, refAbstract=null)], funds=[Fund(id=1241769356959482179, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, awardId=52278359, language=EN, fundingSource=National Natural Science Foundation of China(52278359), fundOrder=null, country=null), Fund(id=1241769357022396744, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, awardId=52278359, language=CN, fundingSource=国家自然科学基金资助项目(52278359), fundOrder=null, country=null), Fund(id=1241769357135642956, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, awardId=2011DA105287-FW202203, language=EN, fundingSource=Open Fund of the State Key Laboratory of Coal Mine Disaster Dynamics and Control(2011DA105287-FW202203), fundOrder=null, country=null), Fund(id=1241769357257277778, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, awardId=2011DA105287-FW202203, language=CN, fundingSource=煤矿灾害动力学与控制国家重点实验室开放基金资助项目(2011DA105287-FW202203), fundOrder=null, country=null), Fund(id=1241769357349552466, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, awardId=QDBSH20230202074, language=EN, fundingSource=Qingdao Postdoctoral Grant(QDBSH20230202074), fundOrder=null, country=null), Fund(id=1241769357441827159, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, awardId=QDBSH20230202074, language=CN, fundingSource=青岛市博士后资助项目(QDBSH20230202074), fundOrder=null, country=null), Fund(id=1241769357555073369, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, awardId=2022GX089, language=EN, fundingSource=Tai'an Scientific and Technological Innovation and Development Project (Policy Guidance Category)(2022GX089), fundOrder=null, country=null), Fund(id=1241769357643153755, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, awardId=2022GX089, language=CN, fundingSource=泰安市科技创新发展项目(政策引导类)(2022GX089), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1241769343558681414, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, xref=1., ext=[AuthorCompanyExt(id=1241769343567070023, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, companyId=1241769343558681414, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2.中铁十四局集团 第四工程有限公司,济南 250000)])], figs=[ArticleFig(id=1241769349774639236, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=EN, label=Fig. 1, caption=
Shaped charge device and charge structure diagram, figureFileSmall=Mv21Xr4oh7Km06ClGXRjOg==, figureFileBig=hQ9dR1QR7mB4/ewdJqUD5A==, tableContent=null), ArticleFig(id=1241769349967577223, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=CN, label=图1, caption=
聚能装置及装药结构图, figureFileSmall=Mv21Xr4oh7Km06ClGXRjOg==, figureFileBig=hQ9dR1QR7mB4/ewdJqUD5A==, tableContent=null), ArticleFig(id=1241769350269567130, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=EN, label=Fig. 2, caption=
Schematic diagram of the charge structure, figureFileSmall=VvtouEUBGeMSW+0DUeADCg==, figureFileBig=BTwCugKHR0ZMWt862ihs6w==, tableContent=null), ArticleFig(id=1241769351771127973, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=CN, label=图2, caption=
炮孔装药结构示意图, figureFileSmall=VvtouEUBGeMSW+0DUeADCg==, figureFileBig=BTwCugKHR0ZMWt862ihs6w==, tableContent=null), ArticleFig(id=1241769351913734315, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=EN, label=Fig. 3, caption=
Diagram of detonating cord+digital electronic detonator connection, figureFileSmall=R/iMov796akGrHWhhUz2nw==, figureFileBig=THv02Mn3zlaaXWDoACZHNQ==, tableContent=null), ArticleFig(id=1241769352014397615, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=CN, label=图3, caption=
导爆索+数码电子雷管起爆示意图, figureFileSmall=R/iMov796akGrHWhhUz2nw==, figureFileBig=THv02Mn3zlaaXWDoACZHNQ==, tableContent=null), ArticleFig(id=1241769352102478007, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=EN, label=Fig. 4, caption=
Original blast hole layout (unit: cm), figureFileSmall=8YL4hC3JCUc5SNzLFohIeg==, figureFileBig=hiXGV/rKM/O7FSqUUwqCNQ==, tableContent=null), ArticleFig(id=1241769352270250172, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=CN, label=图4, caption=
原方案炮孔布置图(单位:cm), figureFileSmall=8YL4hC3JCUc5SNzLFohIeg==, figureFileBig=hiXGV/rKM/O7FSqUUwqCNQ==, tableContent=null), ArticleFig(id=1241769352471576774, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=EN, label=Fig. 5, caption=
Original program after the explosion of the effect, figureFileSmall=d7zTAQmmxOiR5flKReJMVQ==, figureFileBig=jGdipD1jNEc+3tltcLW+JQ==, tableContent=null), ArticleFig(id=1241769352597405900, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=CN, label=图5, caption=
原方案爆后效果, figureFileSmall=d7zTAQmmxOiR5flKReJMVQ==, figureFileBig=jGdipD1jNEc+3tltcLW+JQ==, tableContent=null), ArticleFig(id=1241769352731623635, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=EN, label=Fig. 6, caption=
Misfire of perimeter hole, figureFileSmall=kgDABxZUi+AEC9cGqGbgVg==, figureFileBig=CDslJ2pgvE1e9+PBmtm6gg==, tableContent=null), ArticleFig(id=1241769352840675544, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=CN, label=图6, caption=
周边孔炸药拒爆, figureFileSmall=kgDABxZUi+AEC9cGqGbgVg==, figureFileBig=CDslJ2pgvE1e9+PBmtm6gg==, tableContent=null), ArticleFig(id=1241769352970698973, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=EN, label=Fig. 7, caption=
Shaped charge device assemblies, figureFileSmall=UV1TAPbBsIQJoDxaqSeUmA==, figureFileBig=zOtm5WopBJYGJLy8fcSNsQ==, tableContent=null), ArticleFig(id=1241769353079750887, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=CN, label=图7, caption=
聚能装置炸药组合体, figureFileSmall=UV1TAPbBsIQJoDxaqSeUmA==, figureFileBig=zOtm5WopBJYGJLy8fcSNsQ==, tableContent=null), ArticleFig(id=1241769353180414186, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=EN, label=Fig. 8, caption=
Post-blast effect of the new scheme, figureFileSmall=/8sGwyyjG6OsbNjpmsKz4A==, figureFileBig=TRdxTPTWkTaOOMgHIl+nzg==, tableContent=null), ArticleFig(id=1241769353327214830, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=CN, label=图8, caption=
新方案爆后效果, figureFileSmall=/8sGwyyjG6OsbNjpmsKz4A==, figureFileBig=TRdxTPTWkTaOOMgHIl+nzg==, tableContent=null), ArticleFig(id=1241769353427878133, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=EN, label=Fig. 9, caption=
Misfire of the shaped charges on the right wall, figureFileSmall=MIZ9Dm/dOi0/UMSsn3E/kw==, figureFileBig=+PQo/YJ0i8f9hzOllvdUWg==, tableContent=null), ArticleFig(id=1241769353507569913, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=CN, label=图9, caption=
右边墙聚能装置装药拒爆, figureFileSmall=MIZ9Dm/dOi0/UMSsn3E/kw==, figureFileBig=+PQo/YJ0i8f9hzOllvdUWg==, tableContent=null), ArticleFig(id=1241769353595650302, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=EN, label=Fig. 10, caption=
Comparison of the powder factor, figureFileSmall=yPkI/5iHSVhaj+gAZ8Zckw==, figureFileBig=yGE8kod/n2O5UldUHTk7lw==, tableContent=null), ArticleFig(id=1241769353725673731, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=CN, label=图10, caption=
新旧方案炸药单耗对比, figureFileSmall=yPkI/5iHSVhaj+gAZ8Zckw==, figureFileBig=yGE8kod/n2O5UldUHTk7lw==, tableContent=null), ArticleFig(id=1241769353826337034, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=EN, label=Fig. 11, caption=
Comparison of blast hole utilization, figureFileSmall=BkqC55uKh7DvuBZpU0PyTw==, figureFileBig=L9Tbbofky5I20/rSzhBkeA==, tableContent=null), ArticleFig(id=1241769353914417420, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=CN, label=图11, caption=
新旧方案炮孔利用率对比, figureFileSmall=BkqC55uKh7DvuBZpU0PyTw==, figureFileBig=L9Tbbofky5I20/rSzhBkeA==, tableContent=null), ArticleFig(id=1241769354061218067, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=EN, label=Fig. 12, caption=
Comparison of half-hole rate, figureFileSmall=LtFKPZ0YpKnna/l+FgLh/A==, figureFileBig=J8KjS2lOpWiaavnYWHzhRg==, tableContent=null), ArticleFig(id=1241769354153492758, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=CN, label=图12, caption=
新旧方案半孔率对比, figureFileSmall=LtFKPZ0YpKnna/l+FgLh/A==, figureFileBig=J8KjS2lOpWiaavnYWHzhRg==, tableContent=null), ArticleFig(id=1241769354308682011, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=EN, label=Fig. 13, caption=
Comparison of consumable costs, figureFileSmall=zmdl/5Agb+o1sbeU6u3DtQ==, figureFileBig=qQKvPevve9G6dOskmZFWKg==, tableContent=null), ArticleFig(id=1241769354396762400, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=CN, label=图13, caption=
新旧方案耗材费用对比, figureFileSmall=zmdl/5Agb+o1sbeU6u3DtQ==, figureFileBig=qQKvPevve9G6dOskmZFWKg==, tableContent=null), ArticleFig(id=1241769354510008611, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=EN, label=Table 1, caption=
Charging parameters for blast holes of the original scheme
, figureFileSmall=null, figureFileBig=null, tableContent=
| 炮孔名称 | 孔号 | 段别 | 孔数 | 孔深/m | 孔径/mm | 间距/cm | 角度/° | 装药系数 | 单孔药量/kg | 同段药量/kg |
|---|
| 掏槽孔 | 1~18 | 1 | 18 | 4.6 | 45 | 50 | 61 | 0.59 | 2.7 | 48.6 |
| 辅助孔1 | 19~32 | 2 | 14 | 4.3 | 45 | 60 | 65 | 0.56 | 2.4 | 33.6 |
| 辅助孔2 | 33~44 | 3 | 12 | 4.1 | 45 | 80 | 69 | 0.59 | 2.4 | 28.8 |
| 辅助孔3 | 45~54 | 4 | 10 | 3.9 | 45 | 90 | 74 | 0.62 | 2.4 | 24.0 |
| 辅助孔4 | 55~64 | 5 | 10 | 3.8 | 45 | 90 | 74 | 0.55 | 2.1 | 21.0 |
| 辅助孔5 | 65~71 | 4 | 7 | 3.8 | 45 | 130 | 90 | 0.47 | 1.8 | 12.6 |
| 辅助孔6 | 72~79 | 6 | 8 | 3.8 | 45 | 80 | 74 | 0.55 | 2.1 | 16.8 |
| 辅助孔7 | 80~88 | 6 | 9 | 3.8 | 45 | 140 | 90 | 0.39 | 1.5 | 13.5 |
| 辅助孔8 | 89~98 | 5 | 10 | 3.8 | 45 | 120 | 90 | 0.39 | 1.5 | 15.0 |
| 辅助孔9 | 99~122 | 7 | 24 | 3.8 | 45 | 110 | 90 | 0.55 | 2.1 | 50.4 |
| 周边孔 | 123~173 | 8 | 51 | 3.8 | 45 | 50 | 92 | 0.32 | 1.2 | 61.2 |
| 底角孔 | 174~175 | 8 | 2 | 4.2 | 45 | 0 | 90 | 0.71 | 3.0 | 6.0 |
| 底板孔 | 176~190 | 7 | 13 | 4.0 | 45 | 90 | 90 | 0.68 | 2.7 | 35.1 |
), ArticleFig(id=1241769354640032040, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=CN, label=表1, caption=
原方案爆破炮孔装药参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 炮孔名称 | 孔号 | 段别 | 孔数 | 孔深/m | 孔径/mm | 间距/cm | 角度/° | 装药系数 | 单孔药量/kg | 同段药量/kg |
|---|
| 掏槽孔 | 1~18 | 1 | 18 | 4.6 | 45 | 50 | 61 | 0.59 | 2.7 | 48.6 |
| 辅助孔1 | 19~32 | 2 | 14 | 4.3 | 45 | 60 | 65 | 0.56 | 2.4 | 33.6 |
| 辅助孔2 | 33~44 | 3 | 12 | 4.1 | 45 | 80 | 69 | 0.59 | 2.4 | 28.8 |
| 辅助孔3 | 45~54 | 4 | 10 | 3.9 | 45 | 90 | 74 | 0.62 | 2.4 | 24.0 |
| 辅助孔4 | 55~64 | 5 | 10 | 3.8 | 45 | 90 | 74 | 0.55 | 2.1 | 21.0 |
| 辅助孔5 | 65~71 | 4 | 7 | 3.8 | 45 | 130 | 90 | 0.47 | 1.8 | 12.6 |
| 辅助孔6 | 72~79 | 6 | 8 | 3.8 | 45 | 80 | 74 | 0.55 | 2.1 | 16.8 |
| 辅助孔7 | 80~88 | 6 | 9 | 3.8 | 45 | 140 | 90 | 0.39 | 1.5 | 13.5 |
| 辅助孔8 | 89~98 | 5 | 10 | 3.8 | 45 | 120 | 90 | 0.39 | 1.5 | 15.0 |
| 辅助孔9 | 99~122 | 7 | 24 | 3.8 | 45 | 110 | 90 | 0.55 | 2.1 | 50.4 |
| 周边孔 | 123~173 | 8 | 51 | 3.8 | 45 | 50 | 92 | 0.32 | 1.2 | 61.2 |
| 底角孔 | 174~175 | 8 | 2 | 4.2 | 45 | 0 | 90 | 0.71 | 3.0 | 6.0 |
| 底板孔 | 176~190 | 7 | 13 | 4.0 | 45 | 90 | 90 | 0.68 | 2.7 | 35.1 |
), ArticleFig(id=1241769354749083948, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=EN, label=Table 2, caption=
Actual charge parameters and post-explosive effects statistics of the original scheme
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 掘进方法 | 进尺/m | 方量/m3 | 实际用药量 | 雷管数/发 | 导爆索/m | 炸药单耗 | 半孔率/% | 炮孔利用率/% | 装药时间/h |
|---|
| 1 | 全断面 | 3.6 | 354.60 | 408 | 190 | 250 | 1.15 | 84.31 | 94.73 | 1.2 |
| 2 | 全断面 | 3.7 | 364.45 | 384 | 190 | 350 | 1.05 | 82.35 | 97.36 | 1.5 |
| 3 | 全断面 | 3.7 | 364.45 | 384 | 190 | 300 | 1.05 | 76.47 | 97.36 | 1.4 |
| 4 | 全断面 | 3.5 | 344.75 | 384 | 185 | 300 | 1.11 | 78.43 | 92.10 | 1.4 |
| 5 | 全断面 | 3.5 | 344.75 | 408 | 190 | 250 | 1.18 | 82.35 | 92.10 | 1.3 |
| 6 | 全断面 | 3.4 | 334.90 | 408 | 190 | 250 | 1.22 | 80.39 | 89.47 | 1.3 |
| 7 | 全断面 | 3.5 | 344.75 | 408 | 190 | 250 | 1.18 | 80.39 | 92.10 | 1.3 |
| 8 | 全断面 | 3.4 | 334.90 | 384 | 180 | 250 | 1.15 | 72.54 | 89.47 | 1.3 |
| 9 | 全断面 | 3.5 | 344.75 | 384 | 180 | 250 | 1.11 | 84.31 | 92.10 | 1.2 |
| 10 | 全断面 | 3.3 | 325.05 | 384 | 190 | 350 | 1.18 | 80.39 | 86.84 | 1.5 |
), ArticleFig(id=1241769356296782126, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=CN, label=表2, caption=
原方案实际装药参数与爆后效果统计
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| 序号 | 掘进方法 | 进尺/m | 方量/m3 | 实际用药量 | 雷管数/发 | 导爆索/m | 炸药单耗 | 半孔率/% | 炮孔利用率/% | 装药时间/h |
|---|
| 1 | 全断面 | 3.6 | 354.60 | 408 | 190 | 250 | 1.15 | 84.31 | 94.73 | 1.2 |
| 2 | 全断面 | 3.7 | 364.45 | 384 | 190 | 350 | 1.05 | 82.35 | 97.36 | 1.5 |
| 3 | 全断面 | 3.7 | 364.45 | 384 | 190 | 300 | 1.05 | 76.47 | 97.36 | 1.4 |
| 4 | 全断面 | 3.5 | 344.75 | 384 | 185 | 300 | 1.11 | 78.43 | 92.10 | 1.4 |
| 5 | 全断面 | 3.5 | 344.75 | 408 | 190 | 250 | 1.18 | 82.35 | 92.10 | 1.3 |
| 6 | 全断面 | 3.4 | 334.90 | 408 | 190 | 250 | 1.22 | 80.39 | 89.47 | 1.3 |
| 7 | 全断面 | 3.5 | 344.75 | 408 | 190 | 250 | 1.18 | 80.39 | 92.10 | 1.3 |
| 8 | 全断面 | 3.4 | 334.90 | 384 | 180 | 250 | 1.15 | 72.54 | 89.47 | 1.3 |
| 9 | 全断面 | 3.5 | 344.75 | 384 | 180 | 250 | 1.11 | 84.31 | 92.10 | 1.2 |
| 10 | 全断面 | 3.3 | 325.05 | 384 | 190 | 350 | 1.18 | 80.39 | 86.84 | 1.5 |
), ArticleFig(id=1241769356410028337, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=EN, label=Table 3, caption=
Actual charge parameters and post-explosive effects statistics of the new scheme
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| 序号 | 掘进方法 | 进尺/m | 方量/m3 | 实际用药量 | 使用雷管数/发 | 导爆索/m | 炸药单耗 | 半孔率/% | 炮孔利用率/% | 装药时间/h |
|---|
| 1 | 全断面 | 3.4 | 334.90 | 312 | 220 | 0 | 0.93 | 82.35 | 89.47 | 1.2 |
| 2 | 全断面 | 3.5 | 344.75 | 312 | 220 | 0 | 0.91 | 78.43 | 92.10 | 1.1 |
| 3 | 全断面 | 3.5 | 344.75 | 336 | 200 | 0 | 0.97 | 84.31 | 92.10 | 1.1 |
| 4 | 全断面 | 3.6 | 354.60 | 336 | 230 | 0 | 0.95 | 86.27 | 94.73 | 1.0 |
| 5 | 全断面 | 3.5 | 344.75 | 312 | 220 | 0 | 0.91 | 88.23 | 92.10 | 1.1 |
| 6 | 全断面 | 3.5 | 344.75 | 336 | 220 | 0 | 0.97 | 84.31 | 92.10 | 0.9 |
| 7 | 全断面 | 3.5 | 344.75 | 336 | 220 | 0 | 0.97 | 82.35 | 92.10 | 0.9 |
| 8 | 全断面 | 3.5 | 344.75 | 360 | 220 | 0 | 1.04 | 82.35 | 92.10 | 1.0 |
| 9 | 全断面 | 3.6 | 354.60 | 336 | 220 | 0 | 0.95 | 86.27 | 94.73 | 0.9 |
| 10 | 全断面 | 3.5 | 344.75 | 312 | 220 | 0 | 0.91 | 88.23 | 92.10 | 0.9 |
), ArticleFig(id=1241769356535857460, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=CN, label=表3, caption=
新方案实际装药参数与爆后效果统计
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 掘进方法 | 进尺/m | 方量/m3 | 实际用药量 | 使用雷管数/发 | 导爆索/m | 炸药单耗 | 半孔率/% | 炮孔利用率/% | 装药时间/h |
|---|
| 1 | 全断面 | 3.4 | 334.90 | 312 | 220 | 0 | 0.93 | 82.35 | 89.47 | 1.2 |
| 2 | 全断面 | 3.5 | 344.75 | 312 | 220 | 0 | 0.91 | 78.43 | 92.10 | 1.1 |
| 3 | 全断面 | 3.5 | 344.75 | 336 | 200 | 0 | 0.97 | 84.31 | 92.10 | 1.1 |
| 4 | 全断面 | 3.6 | 354.60 | 336 | 230 | 0 | 0.95 | 86.27 | 94.73 | 1.0 |
| 5 | 全断面 | 3.5 | 344.75 | 312 | 220 | 0 | 0.91 | 88.23 | 92.10 | 1.1 |
| 6 | 全断面 | 3.5 | 344.75 | 336 | 220 | 0 | 0.97 | 84.31 | 92.10 | 0.9 |
| 7 | 全断面 | 3.5 | 344.75 | 336 | 220 | 0 | 0.97 | 82.35 | 92.10 | 0.9 |
| 8 | 全断面 | 3.5 | 344.75 | 360 | 220 | 0 | 1.04 | 82.35 | 92.10 | 1.0 |
| 9 | 全断面 | 3.6 | 354.60 | 336 | 220 | 0 | 0.95 | 86.27 | 94.73 | 0.9 |
| 10 | 全断面 | 3.5 | 344.75 | 312 | 220 | 0 | 0.91 | 88.23 | 92.10 | 0.9 |
), ArticleFig(id=1241769356661686587, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=EN, label=Table 4, caption=
Comparison of blasting effect of the original program and the new program
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案 | 进尺/m | 装药量/kg | 炸药单耗/(kg·m-3) | 半孔率/% | 炮孔利用率/% | 装药时间/h |
|---|
| 导爆索+数码电子雷管 | 3.51 | 393.6 | 1.14 | 80.19 | 92.36 | 1.34 |
| 聚能装置+数码电子雷管 | 3.51 | 328.8 | 0.95 | 84.31 | 92.36 | 1.01 |
), ArticleFig(id=1241769356779127102, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769335681778119, language=CN, label=表4, caption=
原方案与新方案爆后效果对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案 | 进尺/m | 装药量/kg | 炸药单耗/(kg·m-3) | 半孔率/% | 炮孔利用率/% | 装药时间/h |
|---|
| 导爆索+数码电子雷管 | 3.51 | 393.6 | 1.14 | 80.19 | 92.36 | 1.34 |
| 聚能装置+数码电子雷管 | 3.51 | 328.8 | 0.95 | 84.31 | 92.36 | 1.01 |
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