Article(id=1241769333362327918, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241769329201578292, articleNumber=null, orderNo=null, doi=10.3963/j.issn.1001-487X.2024.01.013, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1678032000000, receivedDateStr=2023-03-06, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1773990480031, onlineDateStr=2026-03-20, pubDate=1709222400000, pubDateStr=2024-03-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773990480031, onlineIssueDateStr=2026-03-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773990480031, creator=13701087609, updateTime=1773990480031, updator=13701087609, issue=Issue{id=1241769329201578292, tenantId=1146029695717560320, journalId=1240670690148397066, year='2024', volume='41', 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=1773990479040, creator=13701087609, updateTime=1773992264087, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241776816298459159, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241769329201578292, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241776816298459160, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241769329201578292, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=92, endPage=97, ext={EN=ArticleExt(id=1241769334402515334, articleId=1241769333362327918, tenantId=1146029695717560320, journalId=1240670690148397066, language=EN, title=Effect Assessment of Buffer Blasting with Multi-row Holes and Large Block in Husab Open-pit Uranium Mine, columnId=1240702072862069231, journalTitle=Blasting, columnName=BLASTING IN ORE AND ROCK, runingTitle=null, highlight=null, articleAbstract=
In order to solve the problems of large displacement, high boulder yield and low shovel loading efficiency in the front row of Husab mine blasting operations, a series of buffer blasting trials were designed and conducted. The project has successively completed the buffer blasting tests in 5 large blocks, and each section has 360 000 tons to 530 000 tons of ores, 15~21 rows of holes, and 5~40 meters wide buffer materials on the free surface. The muck pile shape, shovel productivity, fragmentation and floor elevation deviation were measured and compared with the non-buffer blasting results in the same period. The test results show that there are forward pounce and uplift phenomenon to the blasting pile under the impact of explosion. Meanwhile, the muck pile surface presents a shape with unequal heights, and the maximum height difference varies from 4.06 m to 5.85 m. The productivity of a hydraulic shovel is 2722 t/h in the buffer blasting blocks, which is 4.69% higher than that in the non-buffer blasting blocks in the same period. Moreover, the results of fragmentation analysis reveal that the buffer blasting is better than non-buffer blasting on the fragmentation performance, and the buffer blasting has the advantage in reducing boulders. Finally, the test results show that the buffer blasting has certain advantages in floor elevation control. It is the first time to promote buffer blasting technology to the blasting of large sections with multiple rows of holes (15 to 21 rows), which is not only in line with the objective needs of large-scale mine production, but also an inevitable trend as large-scale equipment is used.
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为改善湖山铀矿爆破位移大、矿岩大块率高和前部铲装效率低等问题,湖山铀矿设计并开展了5个大区块压渣爆破试验,每个区块量为36~53万t,炮孔排数15~21排,自由面预留5~40 m宽的渣体,测定和统计了试验区块爆堆形态、装载效率、爆破块度以及底板标高偏差等指标,并与同期清渣爆破区块进行对比分析。结果表明:在爆炸冲击作用下,爆堆存在前扑及隆起现象,爆堆表面呈高低不等连续分布状态,爆堆不同部位最大增高变化范围为4.06~5.85 m;铲装效率方面,液压铲在压渣爆破区块的平均装载效率为2722 t/h,比同期清渣爆破区块平均值高4.69%;爆破块度方面,压渣爆破区块爆后块度分布优于清渣爆破区块,在控制大块率方面更有优势。此外,压渣爆破在底板标高控制方面有一定优势。该研究首次将压渣爆破技术推广至多排孔大区块(15~21排)爆破中,这既符合大型露天矿山生产的客观需求,也是设备大型化后的必然趋势。可以使得湖山铀矿爆破更为精细化的同时,也可以为国内外类似的矿山爆破提供重要的现场数据。
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刘玉龙(1983-),男,博士、正高级工程师,主要从事工程爆破与铀矿开采相关技术研究,(E-mail)zhongguoliuyulong@163.com。
LIU Yu-long (1983-), male, doctor, professor of engineering, mainly engaged in engineering blasting and uranium resource mining related technology research, (E-mail) zhongguoliuyulong@163.com.
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刘玉龙(1983-),男,博士、正高级工程师,主要从事工程爆破与铀矿开采相关技术研究,(E-mail)zhongguoliuyulong@163.com。
LIU Yu-long (1983-), male, doctor, professor of engineering, mainly engaged in engineering blasting and uranium resource mining related technology research, (E-mail) zhongguoliuyulong@163.com.
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刘玉龙(1983-),男,博士、正高级工程师,主要从事工程爆破与铀矿开采相关技术研究,(E-mail)zhongguoliuyulong@163.com。
LIU Yu-long (1983-), male, doctor, professor of engineering, mainly engaged in engineering blasting and uranium resource mining related technology research, (E-mail) zhongguoliuyulong@163.com.
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2022,
74(3): 50-54. (in Chinese), articleTitle=Experimental study on large volume buffer blasting of complex ore body in open-pit mine, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1241769339637006940, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, xref=1., ext=[AuthorCompanyExt(id=1241769339645395548, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, companyId=1241769339637006940, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.CGNPC Uranium Resources Development Co., Ltd., Beijing 100029, China), AuthorCompanyExt(id=1241769339657978462, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, companyId=1241769339637006940, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.中广核铀业发展有限公司,北京 100029)]), AuthorCompany(id=1241769339792196199, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, xref=2., ext=[AuthorCompanyExt(id=1241769339800584809, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, companyId=1241769339792196199, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.North Blasting Technology Co., Ltd., Beijing 100097, China), AuthorCompanyExt(id=1241769339808973418, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, companyId=1241769339792196199, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.北方爆破科技有限公司,北京 100097)])], figs=[ArticleFig(id=1241769344913441706, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, language=EN, label=Fig. 1, caption=
Layout of Husab Uranium Mine, figureFileSmall=LZCJjvUD+PofVPi2PNljEQ==, figureFileBig=tlf8LPGzrOFo/k6CZnE8yQ==, tableContent=null), ArticleFig(id=1241769344993133493, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, language=CN, label=图1, caption=
矿山整体布局图, figureFileSmall=LZCJjvUD+PofVPi2PNljEQ==, figureFileBig=tlf8LPGzrOFo/k6CZnE8yQ==, tableContent=null), ArticleFig(id=1241769345232208836, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, language=EN, label=Fig. 2, caption=
Waste and ore distribution of blocks in geology model, figureFileSmall=d9xgiXMxsg+udwxM0rislg==, figureFileBig=uC2Z0n0KDG0GLiedg0+xfA==, tableContent=null), ArticleFig(id=1241769345416758221, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, language=CN, label=图2, caption=
地质模型中矿石区块矿岩分布图, figureFileSmall=d9xgiXMxsg+udwxM0rislg==, figureFileBig=uC2Z0n0KDG0GLiedg0+xfA==, tableContent=null), ArticleFig(id=1241769345534198740, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, language=EN, label=Fig. 3, caption=
Aerial photography and data processing effects of block 2B30D027, figureFileSmall=t+LShBQ9ivOMm6C+bLgZKw==, figureFileBig=DnybS9KAZtM1whYp6YB/4g==, tableContent=null), ArticleFig(id=1241769345693582299, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, language=CN, label=图3, caption=
试验区块2B30D027航拍及数据处理效果, figureFileSmall=t+LShBQ9ivOMm6C+bLgZKw==, figureFileBig=DnybS9KAZtM1whYp6YB/4g==, tableContent=null), ArticleFig(id=1241769347266446303, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, language=EN, label=Fig. 4, caption=
3D blasting heave data processing effects, figureFileSmall=x6/iGhZYALR480M8CB7tFQ==, figureFileBig=8ntLh8PHXMCk9Cld8Yf9yA==, tableContent=null), ArticleFig(id=1241769347358721002, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, language=CN, label=图4, caption=
3D爆堆高度处理结果, figureFileSmall=x6/iGhZYALR480M8CB7tFQ==, figureFileBig=8ntLh8PHXMCk9Cld8Yf9yA==, tableContent=null), ArticleFig(id=1241769347430024172, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, language=EN, label=Fig. 5, caption=
Productivity of buffer versus non-buffer in the same period, figureFileSmall=lTkPdt5nDtPOW8Jobf8PAg==, figureFileBig=g64Rq/aHKFV8uC1SreAhqQ==, tableContent=null), ArticleFig(id=1241769347581019124, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, language=CN, label=图5, caption=
压渣爆破与同期清渣区块装载效率对比, figureFileSmall=lTkPdt5nDtPOW8Jobf8PAg==, figureFileBig=g64Rq/aHKFV8uC1SreAhqQ==, tableContent=null), ArticleFig(id=1241769347664905211, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, language=EN, label=Fig. 6, caption=
Fragmentation analysis example, figureFileSmall=ndRzv4wu/UoO8soAS18dlg==, figureFileBig=FcjAWTqCMJLeefMINwpjUQ==, tableContent=null), ArticleFig(id=1241769347752984578, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, language=CN, label=图6, caption=
块度分析实例, figureFileSmall=ndRzv4wu/UoO8soAS18dlg==, figureFileBig=FcjAWTqCMJLeefMINwpjUQ==, tableContent=null), ArticleFig(id=1241769347857842183, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, language=EN, label=Fig. 7, caption=
Fragmentation analysis of buffer blasting and no buffer blasting blocks, figureFileSmall=I3Dm1ieflMiw4y4xYQKJ7w==, figureFileBig=757VK3GYOY/AqkwoidSu7w==, tableContent=null), ArticleFig(id=1241769347983671312, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, language=CN, label=图7, caption=
压渣爆破与清渣爆破区块不同直径块度分析, figureFileSmall=I3Dm1ieflMiw4y4xYQKJ7w==, figureFileBig=757VK3GYOY/AqkwoidSu7w==, tableContent=null), ArticleFig(id=1241769348122083355, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, language=EN, label=Fig. 8, caption=
Floor elevation measurement, figureFileSmall=Va4ZVg835sbLc7crph7coQ==, figureFileBig=WCdhWAg65RgixL86Az9J0A==, tableContent=null), ArticleFig(id=1241769348268884001, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, language=CN, label=图8, caption=
底板标高测量, figureFileSmall=Va4ZVg835sbLc7crph7coQ==, figureFileBig=WCdhWAg65RgixL86Az9J0A==, tableContent=null), ArticleFig(id=1241769348369547304, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, language=EN, label=Fig. 9, caption=
Elevation heat map around blasting blocks, figureFileSmall=Pibozpj59pRI7dxBWuk+DQ==, figureFileBig=vfrAQofhCuuWIGwBBQtkpQ==, tableContent=null), ArticleFig(id=1241769348482793520, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, language=CN, label=图9, caption=
试验区块及其周边台阶高程热图, figureFileSmall=Pibozpj59pRI7dxBWuk+DQ==, figureFileBig=vfrAQofhCuuWIGwBBQtkpQ==, tableContent=null), ArticleFig(id=1241769348617011257, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, language=EN, label=Table 1, caption=
Blasting design parameters of test blocks
, figureFileSmall=null, figureFileBig=null, tableContent=
| 生产区块 | 钻孔直径/mm | 孔距/m | 排距/m | 孔深/m | 超深/m | 填塞高度/m | 炸药单耗/(kg·m-3) | 延期间隔/ms | 压渣厚度/m |
|---|
| 2B30D027 | 251 | 6.8 | 6.5 | 9.0 | 1.5 | 4 | 0.90 | 孔42,排75,孔内500 | 5~40 |
| 2B30D022 | 251 | 6.8 | 6.5 | 9.0 | 1.5 | 4 | 0.90 | 孔42,排75,孔内500 | 10~15 |
| 2B30D021 | 251 | 6.8 | 6.5 | 9.0 | 1.5 | 4 | 0.90 | 孔42,排75,孔内500 | 10~30 |
| 1B15D042 | 177 | 4.5 | 5.0 | 8.5 | 1.0 | 3 | 0.66 | 孔42,排100,孔内500 | 10~40 |
| 1B15D043 | 165 | 4.2 | 4.8 | 8.5 | 1.0 | 3 | 0.64 | 孔42,排100,孔内500 | 10~20 |
), ArticleFig(id=1241769348805754950, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, language=CN, label=表1, caption=
压渣爆破试验区块爆破设计参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 生产区块 | 钻孔直径/mm | 孔距/m | 排距/m | 孔深/m | 超深/m | 填塞高度/m | 炸药单耗/(kg·m-3) | 延期间隔/ms | 压渣厚度/m |
|---|
| 2B30D027 | 251 | 6.8 | 6.5 | 9.0 | 1.5 | 4 | 0.90 | 孔42,排75,孔内500 | 5~40 |
| 2B30D022 | 251 | 6.8 | 6.5 | 9.0 | 1.5 | 4 | 0.90 | 孔42,排75,孔内500 | 10~15 |
| 2B30D021 | 251 | 6.8 | 6.5 | 9.0 | 1.5 | 4 | 0.90 | 孔42,排75,孔内500 | 10~30 |
| 1B15D042 | 177 | 4.5 | 5.0 | 8.5 | 1.0 | 3 | 0.66 | 孔42,排100,孔内500 | 10~40 |
| 1B15D043 | 165 | 4.2 | 4.8 | 8.5 | 1.0 | 3 | 0.64 | 孔42,排100,孔内500 | 10~20 |
), ArticleFig(id=1241769348914806863, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, language=EN, label=Table 2, caption=
Productivity of different blocks
, figureFileSmall=null, figureFileBig=null, tableContent=
| 液压铲编号 | 清渣区块装载效率/(t·h-1) | 压渣区块装载效率/(t·h-1) |
|---|
| HS1 | 2515 | 2581 |
| HS2 | 2653 | 2800 |
| HS3 | 2630 | 2785 |
| 平均值 | 2600 | 2722 |
), ArticleFig(id=1241769349002887255, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, language=CN, label=表2, caption=
不同压渣区块铲装效率统计
, figureFileSmall=null, figureFileBig=null, tableContent=
| 液压铲编号 | 清渣区块装载效率/(t·h-1) | 压渣区块装载效率/(t·h-1) |
|---|
| HS1 | 2515 | 2581 |
| HS2 | 2653 | 2800 |
| HS3 | 2630 | 2785 |
| 平均值 | 2600 | 2722 |
), ArticleFig(id=1241769349111939166, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, language=EN, label=Table 3, caption=
Fragmentation analysis result
, figureFileSmall=null, figureFileBig=null, tableContent=
| 区块 | 块度≤1 m占比/% | 块度≤0.6 m占比/% | 块度≤0.4 m占比/% | 块度≤0.25 m占比/% |
|---|
| 2B30D022 | 100.00 | 95.82 | 86.30 | 62.62 |
| 2B30D027 | 100.00 | 97.41 | 88.25 | 67.71 |
| 1B15D042 | 99.90 | 94.48 | 85.18 | 70.13 |
| 1B15D043 | 100.00 | 99.85 | 96.17 | 80.27 |
| 2B30D021 | 100.00 | 96.54 | 85.41 | 63.11 |
| 压渣区块平均 | 99.98 | 96.82 | 88.26 | 68.77 |
| 清渣区块平均 | 99.93 | 95.54 | 86.67 | 65.22 |
), ArticleFig(id=1241769349216796772, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333362327918, language=CN, label=表3, caption=
块度分析结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 区块 | 块度≤1 m占比/% | 块度≤0.6 m占比/% | 块度≤0.4 m占比/% | 块度≤0.25 m占比/% |
|---|
| 2B30D022 | 100.00 | 95.82 | 86.30 | 62.62 |
| 2B30D027 | 100.00 | 97.41 | 88.25 | 67.71 |
| 1B15D042 | 99.90 | 94.48 | 85.18 | 70.13 |
| 1B15D043 | 100.00 | 99.85 | 96.17 | 80.27 |
| 2B30D021 | 100.00 | 96.54 | 85.41 | 63.11 |
| 压渣区块平均 | 99.98 | 96.82 | 88.26 | 68.77 |
| 清渣区块平均 | 99.93 | 95.54 | 86.67 | 65.22 |
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