Article(id=1314908228278902828, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1314908074188562588, articleNumber=null, orderNo=null, doi=10.3969/j.issn.0253-6099.2026.04.001, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1772553600000, receivedDateStr=2026-03-04, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1791428151434, onlineDateStr=2026-10-08, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1791428151434, onlineIssueDateStr=2026-10-08, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1791428151434, creator=13701087609, updateTime=1791428151434, updator=13701087609, issue=Issue{id=1314908074188562588, tenantId=1146029695717560320, journalId=1235980550691926019, year='2026', volume='46', issue='4', pageStart='1', pageEnd='266', issueExtLink='null', onlineDate='null', pubDate='1785513600000', pubDateStr='2026-08-01', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1791428114697, creator='13701087609', updateTime=1791430419337, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1314917740654191268, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1314908074188562588, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1314917740654191269, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1314908074188562588, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1, endPage=7, ext={EN=ArticleExt(id=1314908228513783854, articleId=1314908228278902828, tenantId=1146029695717560320, journalId=1235980550691926019, language=EN, title=Optimization of Bench Height for Open-Pit Mines Under Freeze-Thaw Cycles in High-Altitude Cold Regions, columnId=1236276106018484431, journalTitle=Mining and Metallurgical Engineering, columnName=MINING, runingTitle=null, highlight=null, articleAbstract=

Aiming at optimization of bench height for open-pit mines in high-altitude cold regions, a multi-objective decision-making method considering the influence of freeze-thaw cycles was proposed. Based on parameters including shoveling equipment selection and toe burden, the bench height was preliminarily determined to be within the range of 12-18 m, and seven alternative schemes were proposed. Numerical simulation of slope stability after 25 freeze-thaw cycles was conducted by adopting GeoStudio software, and the safety factors of each scheme ranged from 1.196 to 1.214. Models for ore dilution and loss, drilling and blasting cost, and ore-rock transportation work were then established to calculate the performance values of each scheme in terms of dilution rate, loss rate, drilling cost, blast cost, and transportation work. On this basis, the entropy-weight method was used to determine the weight of each index, and the comprehensive scores of alternative schemes were calculated. The results show that the 15 m bench scheme achieves the highest comprehensive score (0.516 6), and is identified as the optimal solution. Incorporating the mechanical effects of freeze-thaw cycles into the multi-objective evaluation framework, this method provides a quantitative decision-making basis for bench height design of open-pit mines in high-altitude cold regions.

, authors=Gang NIE, Hai XU, Yucun JIANG, Chi MA, authorsList=Gang NIE, Hai XU, Yucun JIANG, Chi MA, authorCompany=null, correspAuthors=Hai XU, 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=1314908228887076911, articleId=1314908228278902828, tenantId=1146029695717560320, journalId=1235980550691926019, language=CN, title=高海拔寒区冻融循环下露天矿台阶高度优选, columnId=1236276106219811026, journalTitle=矿冶工程杂志, columnName=采矿, runingTitle=null, highlight=null, articleAbstract=

针对高海拔寒区露天矿台阶高度优选问题，提出了一种考虑冻融循环影响的多目标决策方法。基于铲装设备选型与底盘抵抗线等参数，确定台阶高度初选范围为12~18 m，并设定7个备选方案。采用GeoStudio软件对冻融循环25次后的边坡稳定性进行数值模拟，得到各方案安全系数为1.196~1.214；构建矿石贫损模型、穿爆成本模型及矿岩运输功模型，计算各方案在贫化率、损失率、穿孔成本、爆破成本及运输功等指标下的效果值。在此基础上，运用熵权法确定各指标权重，计算备选方案综合评分。结果表明：15 m台阶方案综合评分最高（0.5166），为最优方案。该方法将冻融循环力学效应纳入多目标评价体系，为高海拔寒区露天矿台阶高度设计提供了量化决策依据。

, authors=聂港, 徐海, 蒋雨村, 马驰, authorsList=聂港, 徐海, 蒋雨村, 马驰, authorCompany=null, correspAuthors=徐海, authorNote=, correspAuthorsNote=, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=242fq0974lJ4zUtA7NZc9Q==, magXml=r3qnZ5Y3EdtZJiCJNftaAw==, pdfUrl=null, pdf=Hj5e/L16K/nmaduAIRPmFw==, pdfFileSize=749826, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=oVlHpK5Zvzi2tZoxkvYOtg==, mapNumber=null, fund=null)}, authors=[Author(id=1314908229226815540, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1314908228278902828, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=15874560900@163.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1314908229306507318, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1314908228278902828, authorId=1314908229226815540, language=EN, stringName=Gang NIE, firstName=Gang, middleName=null, lastName=NIE, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=CINF Engineering Co., Ltd., Changsha 410019, Hunan, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1314908229373616183, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1314908228278902828, authorId=1314908229226815540, language=CN, stringName=聂港, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=长沙有色冶金设计研究院有限公司，湖南 长沙 410019, bio={"content":"

聂港（1997—），男，湖南怀化人，硕士，助理工程师，主要从事有色金属矿床开采工程设计与技术研究。E-mail: 15874560900@163.com

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聂港（1997—），男，湖南怀化人，硕士，助理工程师，主要从事有色金属矿床开采工程设计与技术研究。E-mail: 15874560900@163.com

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