Article(id=1321897316450157439, 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=1761494400000, receivedDateStr=2025-10-27, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793094479906, onlineDateStr=2026-10-27, pubDate=1790265600000, pubDateStr=2026-09-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793094479906, onlineIssueDateStr=2026-10-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793094479906, creator=13701087609, updateTime=1793094479906, 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=80, endPage=88, ext={EN=ArticleExt(id=1321897316622123904, articleId=1321897316450157439, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Study on Reasonable Backfill Strength for Goafs and Stability of Pillar Mining in a Certain Fluorite Mine, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=

The treatment of goafs is crucial for residual ore recovery. Selecting a backfill with reasonable strength to treat the goaf, so as to prevent the premature instability of pillars caused by stress concentration, is a key prerequisite for ensuring the safe and economic recovery of subsequent pillars. To address the problems of early left-over goafs and residual pillars in a certain fluorite mine, the short-hole shrinkage subsequent filling mining method suitable for medium-thick ore bodies was adopted to recover the pillars. Furthermore, the strength range of the backfill was preliminarily determined to be 1.06-2.08 MPa through theoretical empirical formulas, and then the final backfill strength was determined in combination with numerical simulation. The results show that when the backfill strength is 2.0 MPa, it can effectively alleviate the stress concentration phenomenon at the top and bottom of the backfill, reduce the pressure relief range of the side walls on both sides, ensure that the displacement and deformation of the backfill on the side walls of the pillar stope do not exceed 50 mm, and simultaneously avoid the large-area plastic zone penetration between the backfill and the pillar. After the goafs were treated with backfill with a strength of 2.0 MPa at the site, the cumulative volume of filled goafs is approximately 337 339 m³. A total of 83 000 t of residual roof and sill pillar ores are recovered, and the total profit reaches 36.88 million yuan. While ensuring safe underground recovery, the economic benefits of the mine are significantly improved.

, authors=Chendi Zhu^{1, 2}, Mingyan Wu³, Weixing Lin^{1, 2}, Zhouyun Fu^{1, 2}, authorsList=Chendi Zhu, Mingyan Wu, Weixing Lin, Zhouyun Fu, 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=1321897316898947969, articleId=1321897316450157439, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=某萤石矿空区合理充填体强度及矿柱回采稳定性研究, columnId=1226462294490657775, journalTitle=矿业研究与开发, columnName=采矿与矿山充填, runingTitle=null, highlight=null, articleAbstract=

采空区治理对残矿回采至关重要，选择合理强度的充填体处理采空区，防止矿柱因应力集中而发生提前失稳，是保证后续矿柱安全、经济回采的关键前提。针对某萤石矿早期遗留采空区及残留矿柱问题，采用适用于中厚矿体的浅孔留矿嗣后充填采矿法回采矿柱，并通过理论经验公式初步确定充填体强度范围为1.06~2.08 MPa，再结合数值模拟确定最终充填体强度。结果表明：充填体强度为2.0 MPa时，可有效缓解充填体顶、底部应力集中现象，缩小两侧边墙卸压范围，使矿柱采场两侧边墙充填体位移变形不超过50 mm，同时可避免充填体矿柱间产生大面积塑性区贯通。现场采用2.0 MPa强度充填体治理采空区后，累计充填采空区体积337 339 m³，采出残留顶、间柱矿石8.3万t，利润总额为3 688万元，在保障井下安全回采的同时实现了矿山经济效益的显著提升。

, authors=朱晨迪^{1, 2}, 吴明炎³, 林卫星^{1, 2}, 符洲云^{1, 2}, authorsList=朱晨迪, 吴明炎, 林卫星, 符洲云, authorCompany=null, correspAuthors=符洲云, authorNote=, correspAuthorsNote=, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=UpBmktwS2QEgKIC7xCa1Ww==, magXml=jXKfWiPtkTFvuudr1QLnMQ==, pdfUrl=null, pdf=I/dhFkZRndplxuNhgCj6uw==, pdfFileSize=3630586, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=yRitBz4CCRX8PoybAG0tvQ==, mapNumber=null, fund=null)}, authors=[Author(id=1321897317473567628, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1321897316450157439, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=954138035@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1321897317574230927, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1321897316450157439, authorId=1321897317473567628, language=EN, stringName=Chendi Zhu, firstName=Chendi, middleName=null, lastName=Zhu, 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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朱晨迪（1992—），男，河南南阳人，硕士，工程师，主要从事采矿技术及工艺研究工作。E-mail:954138035@qq.com

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朱晨迪（1992—），男，河南南阳人，硕士，工程师，主要从事采矿技术及工艺研究工作。E-mail:954138035@qq.com

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