Article(id=1311360782550524794, tenantId=1146029695717560320, journalId=1146123346816638986, issueId=1311360779169919555, articleNumber=null, orderNo=null, doi=10.13426/j.cnki.yky.2025.09.07, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1757433600000, receivedDateStr=2025-09-10, revisedDate=1760630400000, revisedDateStr=2025-10-17, acceptedDate=null, acceptedDateStr=null, onlineDate=1790582374464, onlineDateStr=2026-09-28, pubDate=1779206400000, pubDateStr=2026-05-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1790582374464, onlineIssueDateStr=2026-09-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1790582374464, creator=13701087609, updateTime=1790582374464, updator=13701087609, issue=Issue{id=1311360779169919555, tenantId=1146029695717560320, journalId=1146123346816638986, year='2026', volume='45', issue='2', pageStart='1', pageEnd='156', issueExtLink='null', onlineDate='null', pubDate='1779206400000', pubDateStr='2026-05-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1790582373659, creator='13701087609', updateTime=1790583908456, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1311367216646418706, tenantId=1146029695717560320, journalId=1146123346816638986, issueId=1311360779169919555, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1311367216646418707, tenantId=1146029695717560320, journalId=1146123346816638986, issueId=1311360779169919555, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=80, endPage=92, ext={EN=ArticleExt(id=1311360782751851387, articleId=1311360782550524794, tenantId=1146029695717560320, journalId=1146123346816638986, language=EN, title=Study on New Mining Technology of Thin Vein Uranium Mine and Stability of Irregular Vein Stope, columnId=1175805041752556213, journalTitle=Uranium Mining and Metallurgy, columnName=Mining and Hydrometallurgy, runingTitle=null, highlight=null, articleAbstract=

To address the issues of high development-to-extraction ratio, high cost, and low efficiency in the original mining process of a thin vein uranium deposit, a high-sublevel deep-hole continuous and synergistic mining method for thin veins has been developed. Compared with the original mining method, the stope production capacity of the new method has increased by 380.3 %, while the direct mining cost has decreased by 56.29 %. Meanwhile, to verify the safety and stability of this mining method during extraction in irregular veins, a study was conducted based on the ore veins in -200 m to -250 m level. The stability during extraction under both static and dynamic blasting loads was investigated using FLAC3D numerical simulation software. The static simulation results show that the maximum tensile stress in the ore pillar is 0.46 MPa, which is less than the tensile strength of the rock mass (1.63 MPa). The overall displacement does not exceed 1.14 cm, indicating no significant deformation. The plastic zone does not penetrate the barrier pillars and crown pillars, ensuring the stability of the stope. In the dynamic blasting load simulation, a simplified triangular dynamic load was applied to the mined-out Stope 1 #. The maximum tensile stress in the ore pillar was 0.38 MPa, indicating a stable state. The cyclic loading caused a maximum displacement of 2.6 cm in the ore pillar, with a maximum vibration velocity of 20 cm/s. Additionally, the extent of the plastic zone in the ore pillar was limited. Through numerical simulations analyzing stress, displacement, plastic zone, and vibration velocity, it has been demonstrated that the stope pillars remain stable, indicating the strong practicality of the new mining method. The research results provide technical support for the efficient and safe mining of thin-vein uranium deposits.

, authors=Yangyang NIAN, Gangyou SUN, Sai REN, Jiangkun YANG, authorsList=Yangyang NIAN, Gangyou SUN, Sai REN, Jiangkun YANG, authorCompany=null, correspAuthors=Jiangkun YANG, 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=1311360783171281788, articleId=1311360782550524794, tenantId=1146029695717560320, journalId=1146123346816638986, language=CN, title=薄矿脉铀矿新型采矿工艺与不规则矿脉采场稳定性研究, columnId=1175805041991631542, journalTitle=铀矿冶, columnName=开采·选冶, runingTitle=null, highlight=null, articleAbstract=

为解决某薄矿脉铀矿原开采工艺存在的采切比高、成本高、效率低等问题，开发了薄矿脉高分段深孔连续协同采矿方法。与原采矿法相比，新型采矿法的采场生产能力提升了380.3%，采矿直接成本降低了56.29%。为验证该采矿法对不规则矿脉回采的安全性，以-200~-250 m中段矿脉为研究背景，通过FLAC3D数值模拟软件研究了新型采矿法在静力学及爆破动载作用下的回采稳定性。静力学模拟结果显示，矿柱最大拉应力为0.46 MPa，小于岩体的抗拉强度（1.63 MPa）；整体位移不超过1.14 cm，不存在大变形；塑性区未贯通间柱和顶柱，矿房保持稳定。在爆破动荷载模拟研究中，对回采后的1#矿房施加简化三角形动荷载，矿柱最大拉应力为0.38 MPa，处于稳定状态；循环荷载使矿柱产生的最大位移为2.6 cm；矿柱最大振速为20 cm/s；且矿柱上塑性分布区范围较小。通过数值模拟从应力、位移、塑性区、振速等方面证明了采场矿柱的稳定性，说明新型采矿方法具有较强的实践性，研究结果为薄矿脉铀矿的高效安全开采提供了技术支持。

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