Article(id=1321893291818340690, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1321893272490987695, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1745769600000, receivedDateStr=2025-04-28, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793093520359, onlineDateStr=2026-10-27, pubDate=1781712000000, pubDateStr=2026-06-18, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793093520359, onlineIssueDateStr=2026-10-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793093520359, creator=13701087609, updateTime=1793093520359, updator=13701087609, issue=Issue{id=1321893272490987695, tenantId=1146029695717560320, journalId=1225396423026438145, year='2026', volume='46', issue='6', pageStart='1', pageEnd='312', issueExtLink='null', onlineDate='null', pubDate='1781712000000', pubDateStr='2026-06-18', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793093515751, creator='13701087609', updateTime=1793094575775, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1321897718625194101, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1321893272490987695, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1321897718625194102, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1321893272490987695, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=62, endPage=70, ext={EN=ArticleExt(id=1321893291994501459, articleId=1321893291818340690, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Study on Ore-Rock Separation Controlled Blasting Technology and Fragmentation Prediction for the Las Bambas Open-Pit Mine, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=

Ore and rock are distributed alternately in Las Bambas Copper Mine, with varying hardness and diverse lithology across zones. Single blasting parameters are hardly applicable to the complex geological conditions. To achieve proper ore fragmentation and reduce waste rock dilution during blasting, research was conducted on ore-rock separation controlled blasting technology and fragmentation prediction for open-pit bench blasting. Rock mass blastability was classified based on the Rock Mass Index (RMI). In-situ retention blasting and cast blasting were proposed to distinguish between ore and rock, thereby achieving zoned accumulation of broken materials. Schemes of multi-point initiation with differentiated borehole pattern parameters and dense empty hole blasting were designed. Blasting data of Ferrobamba mining area were used for training based on XGBoost model, and ore blasting fragmentation of 25 sample groups was predicted and verified through field tests. The results show that with the multi-point initiation scheme using differentiated borehole pattern parameters, a hole depth of 16.5 m, borehole pattern parameters of 9.0 m×8.0 m for rock area and 6.5 m×5.5 m for ore area, distinct ore-rock boundary grooves are formed after blasting, and ore and rock accumulate separately. The characteristic parameter D₈₀ of blasting fragmentation distribution is 127 mm, while the predicted D₈₀ value is 124 mm with an error of only about 2.36%. The proportion of fragments sized smaller than 25.6 mm reaches 36.7%, which satisfies the requirements of the concentrator.

, authors=Mingdong Tang^{1, 2}, Zhouyun Fu^{1, 2}, Xuesong Chen³, Qinlin Ren^{1, 2}, Yulin Ning³, Yuzhe Sun³, authorsList=Mingdong Tang, Zhouyun Fu, Xuesong Chen, Qinlin Ren, Yulin Ning, Yuzhe Sun, authorCompany=null, correspAuthors=Zhouyun Fu, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1321893292212605268, articleId=1321893291818340690, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=Las Bambas露天矿矿岩分离控制爆破技术与块度预测研究, columnId=1226462294490657775, journalTitle=矿业研究与开发, columnName=采矿与矿山充填, runingTitle=null, highlight=null, articleAbstract=

Las Bambas铜矿矿岩交错分布，各区硬度不一，岩性丰富，单一爆破参数难以适用复杂的地质条件。为在矿山爆破过程中控制矿石块度适中和降低废石混入，开展了露天台阶爆破矿岩分离控制爆破技术及块度预测研究。基于岩体指数（RMI）对岩体可爆性进行分级，提出采用原位堆滞爆破和抛掷爆破来分区爆破岩石和矿石，从而达到破碎矿、岩分区堆积。设计了差异化孔网参数多点起爆与密集空孔爆破方案。基于XGBoost模型对Ferrobamba矿区爆破数据进行训练，预测25组样本数据矿石爆破块度，并进行了现场试验。结果表明：采用差异化孔网参数多点起爆方案，在孔深为16.5 m、岩石区孔网参数为9.0 m×8.0 m、矿石区孔网参数为6.5 m×5.5 m的条件下，爆破后形成明显矿、岩分界沟，矿、岩分别成堆。块度分布特征参数D₈₀为127 mm，模型预测的D₈₀为124 mm，误差仅约2.36%，其中块度25.6 mm的占比为36.7%，可满足选矿厂要求。

, authors=唐鸣东^{1, 2}, 符洲云^{1, 2}, 陈学松³, 任清霖^{1, 2}, 甯瑜琳³, 孙裕喆³, authorsList=唐鸣东, 符洲云, 陈学松, 任清霖, 甯瑜琳, 孙裕喆, authorCompany=null, correspAuthors=符洲云, authorNote=, correspAuthorsNote=, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=QIvDD+FzIvZwcQ2lrLeTkA==, magXml=0gl3G/l9DJBS9Mq2Qb/r9Q==, pdfUrl=null, pdf=gHf9dfvlZYGE7NqI4X+CnQ==, pdfFileSize=2154529, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=wejc7mjyNttED74dsfjmCg==, mapNumber=null, fund=null)}, authors=[Author(id=1321893292715921759, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1321893291818340690, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=593287947@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1321893292804002146, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1321893291818340690, authorId=1321893292715921759, language=EN, stringName=Mingdong Tang, firstName=Mingdong, middleName=null, lastName=Tang, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=^{1, 2}, address=^1.Changsha Institute of Mining Research Co., Ltd., Changsha, Hunan 410012, China
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唐鸣东（1992—），男，湖南邵阳人，硕士，工程师，主要从事采矿技术工程、爆破工程技术研究工作。E-mail:593287947@qq.com

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唐鸣东（1992—），男，湖南邵阳人，硕士，工程师，主要从事采矿技术工程、爆破工程技术研究工作。E-mail:593287947@qq.com

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