Article(id=1241421931224822137, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241421928813089644, articleNumber=null, orderNo=null, doi=10.3963/j.issn.1001-487X.2025.02.009, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1679241600000, receivedDateStr=2023-03-20, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1773907652908, onlineDateStr=2026-03-19, pubDate=1748707200000, pubDateStr=2025-06-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773907652908, onlineIssueDateStr=2026-03-19, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773907652908, creator=13701087609, updateTime=1773907652908, updator=13701087609, issue=Issue{id=1241421928813089644, tenantId=1146029695717560320, journalId=1240670690148397066, year='2025', volume='42', issue='2', pageStart='1', pageEnd='210', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773907652332, creator=13701087609, updateTime=1773908080242, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241423723643859829, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241421928813089644, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241423723643859830, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241421928813089644, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=73, endPage=80, ext={EN=ArticleExt(id=1241421931770081659, articleId=1241421931224822137, tenantId=1146029695717560320, journalId=1240670690148397066, language=EN, title=Study on Internal Rock Mass Movement Trajectory and Muckpile Distribution during Bench Blasting, columnId=1240702072862069231, journalTitle=Blasting, columnName=BLASTING IN ORE AND ROCK, runingTitle=null, highlight=null, articleAbstract=
As a main mean of open-pit mining, bench blasting is still an irreplaceable production method at present and even in the future. By deeply analyzing the measured data of bench blasting and using 3DEC software to simulate the bench blasting process, the internal rock mass movement trajectory and muckpile distribution during the bench blasting process were revealed. The research results show that the monitoring points generally rose along the vertical direction first and then fell during the blasting process. Among them, the movement of the monitoring points on the upper part of the monitoring hole were more obvious in the vertical direction, rising to a certain height and then quickly moving vertically downward. While the monitoring points on the lower part of the monitoring hole mainly moved forward in the horizontal direction, and the vertical direction movement is relatively weak. At the same time, in order to study the spatial distribution of the muckpile, the bench in the research area were divided into six parts, as Ⅰ~Ⅵ. Besides, the main part (0~40 m) of the muckpile was divided into four regions, as A, B, C and D. According to the simulation results, it can be found that the Ⅴ rock mass accounts for the most in region A (muckpile 0~10 m), which is as high as 41.7%. The Ⅰ~Ⅴ rock mass distribution is relatively even in region B (muckpile 11 m~20 m). The Ⅰ~Ⅲ rock mass accounts for 43.1%, 37.5% and 19.3%, respectively, and the Ⅳ rock mass accounts for a very small part in region C (muckpile 21~30 m). It is basically composed of the Ⅰ rock mass in region D (muckpile 31~40 m) at the forefront of the blast muckpile, which accounts for 95%.
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作为露天矿开采的主要手段,台阶爆破在目前乃至未来一段时间内仍然是其他技术不可代替的生产方式。通过深入分析台阶爆破实测数据,并采用3DEC软件模拟台阶爆破过程,揭示了台阶爆破过程中内部岩体运移轨迹及爆堆分布规律。研究结果表明:在爆破过程中,监测点整体呈现出先沿垂直方向上隆起后下落的运动规律。其中,监测孔上部监测点在垂直方向运动较为明显,隆起到一定高度后迅速垂直向下进行运动,而监测孔下部监测点主要以水平方向运动向前推进,垂直方向运动相对平缓。同时为了研究台阶岩体在爆破作用下破碎后在爆堆之中空间分布情况,本文将研究区域的台阶在爆破之前划分为Ⅰ~Ⅵ共6个部分,以及将台阶爆破之后爆堆主体0~40 m部分均匀划分为A、B、C、D4个区域。根据模拟结果可以发现,在区域A(爆堆0 m~10 m)中Ⅴ岩体占比最多达到41.7%,在区域B(爆堆11~20 m)中存在Ⅰ~Ⅴ岩体且分布较为平均,而在区域C(爆堆21~30 m)中主要包含台阶Ⅰ~Ⅲ岩体,占比分别达到了43.1%、37.5%、19.3%,Ⅳ占极少部分可忽略不计;在爆堆最前沿区域D(爆堆31 m~40 m)中基本由Ⅰ岩体组成,占比高达95%。研究成果能够为矿山的高效开采和精准配矿提供理论支撑与基础性数据。
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, authorsList=李志恒, 白俊, 金长宇, 陈立军)}, authors=[Author(id=1241439648573091986, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241421931224822137, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=2070987@stu.neu.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241439648749252765, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241421931224822137, authorId=1241439648573091986, language=EN, stringName=Zhi-heng LI, firstName=Zhi-heng, middleName=null, lastName=LI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern University, Shenyang 110819, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241439648933802148, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241421931224822137, authorId=1241439648573091986, language=CN, stringName=李志恒, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.东北大学 深部金属矿山安全开采教育部重点实验室,沈阳 110819, bio={"content":"
李志恒(1997-),男,硕士,主要从事采矿工程方向研究,(E-mail)2070987@stu.neu.edu.cn.
LI Zhi-heng (1997-), male, master degree, mainly engaged in mining engineering research, (E-mail)2070987@stu.neu.edu.cn.
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李志恒(1997-),男,硕士,主要从事采矿工程方向研究,(E-mail)2070987@stu.neu.edu.cn.
LI Zhi-heng (1997-), male, master degree, mainly engaged in mining engineering research, (E-mail)2070987@stu.neu.edu.cn.
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2.Lanxian Mining Co., Ltd., TIsco Group, Lvliang 033504, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241439649290318012, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241421931224822137, authorId=1241439649047048364, language=CN, stringName=白俊, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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Schematic diagram of installation of signal markers in monitoring holes(unit:m), figureFileSmall=ae53LgdfTfiGHElHRSPnoA==, figureFileBig=RDiOJZGQIry34cnfKKKBcA==, tableContent=null), ArticleFig(id=1241439654633861513, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241421931224822137, language=CN, label=图2, caption=
信标在监测孔中安装示意图(单位:m), figureFileSmall=ae53LgdfTfiGHElHRSPnoA==, figureFileBig=RDiOJZGQIry34cnfKKKBcA==, tableContent=null), ArticleFig(id=1241439654835188112, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241421931224822137, language=EN, label=Fig. 3, caption=
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简化台阶数值模型, figureFileSmall=A6JvBdQ1fqUG1p3Fy1H1zg==, figureFileBig=YEov6JaAqzJKkIALbM57bg==, tableContent=null), ArticleFig(id=1241439655342698924, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241421931224822137, language=EN, label=Fig. 5, caption=
The position of bench rock mass changes at different time, figureFileSmall=+Kqu2B1Epu/xVl+VWZFnww==, figureFileBig=x9WwWCbJIVwMBR2s5aM2Sw==, tableContent=null), ArticleFig(id=1241439655485305267, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241421931224822137, language=CN, label=图5, caption=
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Location distribution of monitoring points in numerical simulation, figureFileSmall=4qrT+xCAggeZjLmT2tHcAg==, figureFileBig=+iKUVnDqTmpKqC0zvjTUkA==, tableContent=null), ArticleFig(id=1241439657351770561, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241421931224822137, language=CN, label=图6, caption=
数值模拟中监测点位置分布, figureFileSmall=4qrT+xCAggeZjLmT2tHcAg==, figureFileBig=+iKUVnDqTmpKqC0zvjTUkA==, tableContent=null), ArticleFig(id=1241439657469211081, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241421931224822137, language=EN, label=Fig. 7, caption=
Numerical simulation of the monitoring point movement, figureFileSmall=oNCeUa9aJEP9zPHmptRXvA==, figureFileBig=CqfaZjQLqPsmRk8EN2GOIQ==, tableContent=null), ArticleFig(id=1241439657565680081, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241421931224822137, language=CN, label=图7, caption=
数值模拟监测点运动轨迹, figureFileSmall=oNCeUa9aJEP9zPHmptRXvA==, figureFileBig=CqfaZjQLqPsmRk8EN2GOIQ==, tableContent=null), ArticleFig(id=1241439657926390230, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241421931224822137, language=EN, label=Fig. 8, caption=
Distribution of bench rock mass before and after blasting, figureFileSmall=xusJslxVRhemEu297StqRw==, figureFileBig=gfk1JWKa7qJMW+dczR+Gjg==, tableContent=null), ArticleFig(id=1241439658215797216, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241421931224822137, language=CN, label=图8, caption=
台阶岩体在爆破前后的分布, figureFileSmall=xusJslxVRhemEu297StqRw==, figureFileBig=gfk1JWKa7qJMW+dczR+Gjg==, tableContent=null), ArticleFig(id=1241439658299683300, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241421931224822137, language=EN, label=Fig. 9, caption=
Proportion of bench rock mass in muckpile, figureFileSmall=UUfI6S8RXTdirN5jjFTANg==, figureFileBig=5onbbeYdGVFLUu+UNgEerw==, tableContent=null), ArticleFig(id=1241439658404540905, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241421931224822137, language=CN, label=图9, caption=
台阶岩体在爆堆中的占比, figureFileSmall=UUfI6S8RXTdirN5jjFTANg==, figureFileBig=5onbbeYdGVFLUu+UNgEerw==, tableContent=null), ArticleFig(id=1241439658526175727, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241421931224822137, language=EN, label=Fig. 10, caption=
Percentage of Ⅰ~Ⅵ rock mass in region A B C and D, figureFileSmall=7I0u+lAkcbX6yBSkXlGETg==, figureFileBig=PCvK3v/uiUTztEudLdVMqQ==, tableContent=null), ArticleFig(id=1241439658668782062, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241421931224822137, language=CN, label=图10, caption=
Ⅰ~Ⅵ岩体在区域A、B、C、D中的百分比, figureFileSmall=7I0u+lAkcbX6yBSkXlGETg==, figureFileBig=PCvK3v/uiUTztEudLdVMqQ==, tableContent=null), ArticleFig(id=1241439658777833970, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241421931224822137, language=EN, label=Table 1, caption=
Signal marker movement data statistics
, figureFileSmall=null, figureFileBig=null, tableContent=
| 水平位移/m | 垂直位移/m | 运动时间/s | 平均速度/ (m·s-1) |
|---|
| 监测点1 | 27.5 | 5.4 | 3.4 | 8.0 |
| 监测点2 | 24.9 | 5.5 | 3.4 | 7.3 |
| 监测点3 | 18.0 | 1.5 | 3.2 | 5.6 |
| 监测点4 | 23.8 | 5.5 | 3.2 | 7.4 |
| 监测点5 | 19.1 | 2.8 | 3.2 | 5.9 |
| 监测点6 | 13.8 | 0.6 | 3.1 | 4.5 |
| 监测点7 | 15.9 | 3.5 | 3.1 | 5.1 |
| 监测点8 | 18.2 | 1.8 | 2.8 | 6.5 |
| 监测点9 | 11.5 | 2.3 | 2.9 | 4.0 |
| 监测点10 | 13.8 | 1.5 | 2.6 | 5.3 |
| 监测点11 | 11.5 | 2.6 | 2.8 | 4.1 |
| 监测点12 | 13.1 | 1.0 | 2.6 | 5.0 |
), ArticleFig(id=1241439659050463735, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241421931224822137, language=CN, label=表1, caption=
信标运动数据统计
, figureFileSmall=null, figureFileBig=null, tableContent=
| 水平位移/m | 垂直位移/m | 运动时间/s | 平均速度/ (m·s-1) |
|---|
| 监测点1 | 27.5 | 5.4 | 3.4 | 8.0 |
| 监测点2 | 24.9 | 5.5 | 3.4 | 7.3 |
| 监测点3 | 18.0 | 1.5 | 3.2 | 5.6 |
| 监测点4 | 23.8 | 5.5 | 3.2 | 7.4 |
| 监测点5 | 19.1 | 2.8 | 3.2 | 5.9 |
| 监测点6 | 13.8 | 0.6 | 3.1 | 4.5 |
| 监测点7 | 15.9 | 3.5 | 3.1 | 5.1 |
| 监测点8 | 18.2 | 1.8 | 2.8 | 6.5 |
| 监测点9 | 11.5 | 2.3 | 2.9 | 4.0 |
| 监测点10 | 13.8 | 1.5 | 2.6 | 5.3 |
| 监测点11 | 11.5 | 2.6 | 2.8 | 4.1 |
| 监测点12 | 13.1 | 1.0 | 2.6 | 5.0 |
), ArticleFig(id=1241439659172098557, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241421931224822137, language=EN, label=Table 2, caption=
Mechanical parameters of bench rock mass
, figureFileSmall=null, figureFileBig=null, tableContent=
| 密度/ (kg·m-3) | 泊松比 | 体积模/ GPa | 剪切模/ GPa | 内摩擦角/(°) | 粘聚力/ MPa | 抗拉强/ MPa |
|---|
| 2500 | 0.25 | 12.5 | 7 | 5 | 42 | 0.055 |
), ArticleFig(id=1241439659369230852, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241421931224822137, language=CN, label=表2, caption=
台阶岩体力学参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 密度/ (kg·m-3) | 泊松比 | 体积模/ GPa | 剪切模/ GPa | 内摩擦角/(°) | 粘聚力/ MPa | 抗拉强/ MPa |
|---|
| 2500 | 0.25 | 12.5 | 7 | 5 | 42 | 0.055 |
), ArticleFig(id=1241439659599917572, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241421931224822137, language=EN, label=Table 3, caption=
Proportion of rock mass volume in different areas in muckpile
, figureFileSmall=null, figureFileBig=null, tableContent=
| Ⅰ | Ⅱ | Ⅲ | Ⅳ | Ⅴ | Ⅵ | Total |
|---|
| A | 17 | 282 | 624 | 1118 | 1814 | 494 | 4349 |
| B | 929 | 854 | 1155 | 1277 | 586 | 0 | 4801 |
| C | 1391 | 1208 | 621 | 5 | 0 | 0 | 3225 |
| D | 1074 | 56 | 0 | 0 | 0 | 0 | 1130 |
), ArticleFig(id=1241439659838992905, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241421931224822137, language=CN, label=表3, caption=
不同区域岩体体积在爆堆中占比
, figureFileSmall=null, figureFileBig=null, tableContent=
| Ⅰ | Ⅱ | Ⅲ | Ⅳ | Ⅴ | Ⅵ | Total |
|---|
| A | 17 | 282 | 624 | 1118 | 1814 | 494 | 4349 |
| B | 929 | 854 | 1155 | 1277 | 586 | 0 | 4801 |
| C | 1391 | 1208 | 621 | 5 | 0 | 0 | 3225 |
| D | 1074 | 56 | 0 | 0 | 0 | 0 | 1130 |
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