Article(id=1321897333927818049, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1321897310649434924, 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=1779033600000, receivedDateStr=2026-05-18, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793094484073, onlineDateStr=2026-10-27, pubDate=1790265600000, pubDateStr=2026-09-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793094484073, onlineIssueDateStr=2026-10-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793094484073, creator=13701087609, updateTime=1793094484073, updator=13701087609, issue=Issue{id=1321897310649434924, tenantId=1146029695717560320, journalId=1225396423026438145, year='2026', volume='46', issue='9', pageStart='1', pageEnd='346', issueExtLink='null', onlineDate='null', pubDate='1790265600000', pubDateStr='2026-09-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1793094478523, creator='13701087609', updateTime=1793094618231, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1321897896698561428, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1321897310649434924, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1321897896698561429, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1321897310649434924, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=98, endPage=106, ext={EN=ArticleExt(id=1321897334150116162, articleId=1321897333927818049, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Determination of Economic Fragmentation Size for Underground Metal Mines Based on Coupling of Direct Operation Costs of Drilling-Blasting-Loading Haulage, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=

To address the influence of blasting fragmentation size on the comprehensive production costs of drilling, blasting and loading haulage in underground metal mines, 15 large-diameter long-hole stopes of a lead-zinc mine were taken as the research object. Based on measured blasting fragmentation size and production costs over the same period, a coupling model of direct operation costs of drilling-blasting-loading haulage was constructed, and sensitivity analysis and field industrial tests were conducted for verification. The results show that the comprehensive cost first decreases and then increases with the increase in average fragmentation size. The economic optimal fragmentation size is 24.99 cm, corresponding to a comprehensive direct operation cost of 7.501 yuan/t. When the explosive consumption per unit and blast hole pattern parameters are respectively perturbed by ±10%, the optimal fragmentation size remains within the range of 23 to 27 cm, and it is recommended to take 25 cm as the design target for on-site blasting fragmentation. Compared with the reference fragmentation size of 32.2 cm predicted by the Kuznetsov model, the predicted cost corresponding to the model's optimal fragmentation size is reduced by 3.09%. The average fragmentation size in the field test is 246.5 mm, which is 10.1% lower than that of the comparison stope, and the proportion of blocks larger than 600 mm decreases from 10.33% to 5.48%. The model is applicable to mines with similar geological conditions, mining methods, and equipment configurations, and its results only reflect the direct operation costs of the three processes of drilling, blasting and loading haulage.

, authors=Luyang Wang¹, Xian'gang Yin^{1, 2}, Weixing Lin^{1, 2}, Xiaoyuan Li³, Xiaoming Liu³, Yanhua Huang³, Kaiping Zhao³, Haigen Yu^{1, 2}, authorsList=Luyang Wang, Xian'gang Yin, Weixing Lin, Xiaoyuan Li, Xiaoming Liu, Yanhua Huang, Kaiping Zhao, Haigen Yu, authorCompany=null, correspAuthors=null, 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=1321897334393385795, articleId=1321897333927818049, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=基于凿岩—爆破—铲运直接作业成本耦合的地下铅锌矿经济块度确定, columnId=1226462294490657775, journalTitle=矿业研究与开发, columnName=采矿与矿山充填, runingTitle=null, highlight=null, articleAbstract=

针对地下金属矿山爆破块度对凿岩、爆破铲运综合生产成本的影响，以某铅锌矿15个大直径深孔采场为研究对象，基于实测爆破块度和同期生产成本，构建凿岩—爆破—铲运直接作业成本耦合模型，并采用敏感性分析和现场工业试验进行验证。结果表明，综合成本随平均块度增大呈先降后升的趋势，经济最优块度为24.99 cm，对应综合直接作业成本为7.501元/t。炸药单耗和孔网参数分别扰动±10%时，最优块度保持在23~27 cm，建议将25 cm作为现场爆破块度设计目标。与Kuznetsov模型预测的32.2 cm基准块度相比，模型预测最优块度的对应成本降低3.09%。现场试验平均块度为246.5 mm，相较于对比采场的爆破块度降低10.1%，大于600 mm的块体比例由10.33%降至5.48%。该模型适用于地质条件、采矿方法和装备配置相近的矿山，其结果仅反映凿岩、爆破和铲运3个工序的直接作业成本。

, authors=王陆洋¹, 尹贤刚^{1, 2}, 林卫星^{1, 2}, 李小元³, 刘晓明³, 黄燕华³, 赵开平³, 喻海根^{1, 2}, authorsList=王陆洋, 尹贤刚, 林卫星, 李小元, 刘晓明, 黄燕华, 赵开平, 喻海根, authorCompany=null, correspAuthors=null, authorNote=, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=r0y4j0WCwcAtu7wAHx7f7A==, magXml=EsgIoxlbtAfwgpXMdubRbA==, pdfUrl=null, pdf=GZuyDa6LSyTt6oyzRGYjbw==, pdfFileSize=2291514, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=qk09qMnomATbTXS67SWdXw==, mapNumber=null, fund=null)}, authors=[Author(id=1321897336461177678, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1321897333927818049, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=1300624034@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1321897336553452368, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1321897333927818049, authorId=1321897336461177678, language=EN, stringName=Luyang Wang, firstName=Luyang, middleName=null, lastName=Wang, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1.Changsha Institute of Mining Research Co., Ltd., Changsha, Hunan 410012, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1321897336637338449, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1321897333927818049, authorId=1321897336461177678, language=CN, stringName=王陆洋, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1．长沙矿山研究院有限责任公司，湖南 长沙　410012, bio={"content":"

王陆洋（2002—），男，山东莱芜人，硕士研究生，主要从事爆破方面的研究。E-mail:1300624034@qq.com

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王陆洋（2002—），男，山东莱芜人，硕士研究生，主要从事爆破方面的研究。E-mail:1300624034@qq.com

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