Article(id=1241406721403441946, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1241406711219680205, articleNumber=null, orderNo=null, doi=10.3969/j.issn.0253-6099.2024.06.006, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1718208000000, receivedDateStr=2024-06-13, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1773904026604, onlineDateStr=2026-03-19, pubDate=1732982400000, pubDateStr=2024-12-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773904026604, onlineIssueDateStr=2026-03-19, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773904026604, creator=13701087609, updateTime=1773904026604, updator=13701087609, issue=Issue{id=1241406711219680205, tenantId=1146029695717560320, journalId=1235980550691926019, year='2024', volume='44', issue='6', pageStart='1', pageEnd='174', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773904024176, creator=13701087609, updateTime=1773911273793, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241437118384362345, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1241406711219680205, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241437118388556650, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1241406711219680205, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=28, endPage=31, ext={EN=ArticleExt(id=1241406721718014762, articleId=1241406721403441946, tenantId=1146029695717560320, journalId=1235980550691926019, language=EN, title=Application of New Smooth Blasting Technology in Slope Excavation, columnId=1236276106018484431, journalTitle=Mining and Metallurgical Engineering, columnName=MINING, runingTitle=null, highlight=null, articleAbstract=
In order to address problems of high cost, high noise and low efficiency of traditional smooth blasting technology, a new charging structure without a detonating cord was proposed, and the parameters were determined according to the requirements of smooth blasting. Tests on smooth blasting without a detonating cord were carried out for blastholes with non-coupling coefficients of 3.8, 3.9 and 4.0, respectively. Based on the analysis of the half-hole rate after smooth blasting, the smooth blasting effects of blastholes corresponding to three non-coupling coefficients were analyzed based on comparison. The results show that each blasthole for smooth blasting can be successfully initiated by using a charging structure without a detonating cord, and the half-hole rates of blastholes are 78.40%, 89.60% and 57.60% respectively corresponding to those three non-coupling coefficients. It is concluded that an optimal non-coupling coefficient of this new smooth blasting technology in the test is 3.9.
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为了改善传统光面爆破技术成本高、噪声大、效率低等问题,提出了一种无导爆索起爆的新型装药结构。根据光面爆破的要求,确定了光面爆破参数,对不耦合系数为3.8、3.9、4.0的炮孔分别进行无导爆索起爆的光面爆破试验,并分析光爆孔半孔率情况,比较3种不耦合系数炮孔的光面爆破效果。结果表明,各光爆孔使用无导爆索起爆的装药结构均能顺利起爆,3种不耦合系数下炮孔半孔率依次为78.40%、89.60%、57.60%。该新型光面爆破技术试验较好的不耦合系数为3.9。
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26(5): 62-67., articleTitle=间隔不耦合装药结构形式及特点分析, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1241406726998642827, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241406721403441946, xref=1., ext=[AuthorCompanyExt(id=1241406727002837132, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241406721403441946, companyId=1241406726998642827, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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| 密度/(kg·m-3) | 纵波速度/(m·s-1) | 平均抗拉强度/MPa | 平均抗压强度/MPa | 平均弹性模量/GPa | 平均泊松比 | 黏聚力/MPa | 内摩擦角/(°) |
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| 2.693 | 5 746 | 5.971 | 111.566 | 59.378 | 0.224 | 12.98 | 45.08 |
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石灰岩力学参数
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| 密度/(kg·m-3) | 纵波速度/(m·s-1) | 平均抗拉强度/MPa | 平均抗压强度/MPa | 平均弹性模量/GPa | 平均泊松比 | 黏聚力/MPa | 内摩擦角/(°) |
|---|
| 2.693 | 5 746 | 5.971 | 111.566 | 59.378 | 0.224 | 12.98 | 45.08 |
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| 殉爆距离/cm | 质量/g | 爆速/(m·s-1) | 做功能力/mL | 药卷密度/(g·cm-3) | 药卷直径/mm |
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| ≥10 | 300 | 4 000 | ≥260 | 1.24 | 32±1 |
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32 mm乳化炸药性能指标
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| 殉爆距离/cm | 质量/g | 爆速/(m·s-1) | 做功能力/mL | 药卷密度/(g·cm-3) | 药卷直径/mm |
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| ≥10 | 300 | 4 000 | ≥260 | 1.24 | 32±1 |
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| 工程案例 | 台阶高度/m | 孔径/mm | 药包直径/mm | 线装药密度/(kg·m-1) |
|---|
| 宜柳高速公路高边坡 | 12 | 90 | 32 | 0.50~1.00 |
| 黄衢高速公路边坡 | 10 | 90 | 32 | 0.35~0.88 |
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类似边坡爆破参数
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| 工程案例 | 台阶高度/m | 孔径/mm | 药包直径/mm | 线装药密度/(kg·m-1) |
|---|
| 宜柳高速公路高边坡 | 12 | 90 | 32 | 0.50~1.00 |
| 黄衢高速公路边坡 | 10 | 90 | 32 | 0.35~0.88 |
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| 编号 | 孔径/mm | 孔深/m | 炮孔间距/m | 装药量/kg | 不耦合系数 | 雷管/个 | 雷管距孔口距离/m | 堵塞长度/m |
|---|
| 1# | 90 | 12.5 | 1.5 | 6.9 | 3.8 | 2 | 4.5/9.9 | 1.5 |
| 2# | 90 | 12.5 | 1.5 | 6.9 | 3.8 | 2 | 4.5/10.1 | 1.5 |
| 3# | 90 | 12.5 | 1.5 | 6.5 | 3.9 | 2 | 4.6/10.1 | 1.5 |
| 4# | 90 | 12.5 | 1.5 | 6.5 | 3.9 | 2 | 4.7/9.8 | 1.5 |
| 5# | 90 | 12.5 | 1.5 | 6.3 | 4.0 | 2 | 4.9/10.0 | 1.5 |
| 6# | 90 | 12.5 | 1.5 | 6.3 | 4.0 | 2 | 4.7/10.1 | 1.5 |
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炮孔参数
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| 编号 | 孔径/mm | 孔深/m | 炮孔间距/m | 装药量/kg | 不耦合系数 | 雷管/个 | 雷管距孔口距离/m | 堵塞长度/m |
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| 1# | 90 | 12.5 | 1.5 | 6.9 | 3.8 | 2 | 4.5/9.9 | 1.5 |
| 2# | 90 | 12.5 | 1.5 | 6.9 | 3.8 | 2 | 4.5/10.1 | 1.5 |
| 3# | 90 | 12.5 | 1.5 | 6.5 | 3.9 | 2 | 4.6/10.1 | 1.5 |
| 4# | 90 | 12.5 | 1.5 | 6.5 | 3.9 | 2 | 4.7/9.8 | 1.5 |
| 5# | 90 | 12.5 | 1.5 | 6.3 | 4.0 | 2 | 4.9/10.0 | 1.5 |
| 6# | 90 | 12.5 | 1.5 | 6.3 | 4.0 | 2 | 4.7/10.1 | 1.5 |
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| 编号 | 炸药起爆情况 | 半孔率/% |
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| 孔上部 | 孔中部 | 孔底部 | 孔上部 | 孔中部 | 孔底部 | 整体 |
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| 1# | 起爆 | 起爆 | 起爆 | 80.00 | 92.50 | 62.22 | 77.60 |
| 2# | 起爆 | 起爆 | 起爆 | 87.50 | 80.00 | 77.50 | 78.40 |
| 3# | 起爆 | 起爆 | 起爆 | 100.00 | 100.00 | 71.11 | 89.60 |
| 4# | 起爆 | 起爆 | 起爆 | 0.00 | 62.50 | 51.11 | 38.40 |
| 5# | 起爆 | 起爆 | 起爆 | 72.50 | 60.00 | 42.22 | 57.60 |
| 6# | 起爆 | 起爆 | 起爆 | 100.00 | 50.00 | 0.00 | 48.00 |
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试验结果表
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| 编号 | 炸药起爆情况 | 半孔率/% |
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| 孔上部 | 孔中部 | 孔底部 | 孔上部 | 孔中部 | 孔底部 | 整体 |
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| 1# | 起爆 | 起爆 | 起爆 | 80.00 | 92.50 | 62.22 | 77.60 |
| 2# | 起爆 | 起爆 | 起爆 | 87.50 | 80.00 | 77.50 | 78.40 |
| 3# | 起爆 | 起爆 | 起爆 | 100.00 | 100.00 | 71.11 | 89.60 |
| 4# | 起爆 | 起爆 | 起爆 | 0.00 | 62.50 | 51.11 | 38.40 |
| 5# | 起爆 | 起爆 | 起爆 | 72.50 | 60.00 | 42.22 | 57.60 |
| 6# | 起爆 | 起爆 | 起爆 | 100.00 | 50.00 | 0.00 | 48.00 |
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