Article(id=1322559861628448929, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559853093048851, 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=1739980800000, receivedDateStr=2025-02-20, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793252442986, onlineDateStr=2026-10-29, pubDate=1771948800000, pubDateStr=2026-02-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793252442986, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793252442986, creator=13701087609, updateTime=1793252442986, updator=13701087609, issue=Issue{id=1322559853093048851, tenantId=1146029695717560320, journalId=1225396423026438145, year='2026', volume='46', issue='2', pageStart='1', pageEnd='326', issueExtLink='null', onlineDate='null', pubDate='1771948800000', pubDateStr='2026-02-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793252440951, creator='13701087609', updateTime=1793252699964, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322560939526828556, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559853093048851, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322560939526828557, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559853093048851, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=109, endPage=117, ext={EN=ArticleExt(id=1322559861800415394, articleId=1322559861628448929, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Optimization of Waterproof Layer Thickness and Stability Analysis for Mining Under Water-Rich Karst Aquifers, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=

In order to solve the problem of water inrush and instability of stope caused by a large amount of fissure water in the water-rich fault fracture zone, taking the stope in the northern area of Zhongguan Iron Mine as the background, the water pressure monitoring tests was carried out. The sensitivity of stope stability to water pressure change was explored by FLAC3D, and the water pressure gradient with obvious change was obtained. Then, a numerical model of "water pressure-waterproof layer thickness" was established to explore the control effect of different water pressure values and waterproof layer thicknesses on stope stability. The stability and variation rules were analyzed with the distribution of roof stress, displacement and plastic zone as indicators, and the relationship between water pressure and waterproof layer thickness was obtained. The results show that the ore body in the northern area of Zhongguan Iron Mine is a typical water-rich deposit, and the water pressure is between 0.1 MPa and 2.0 MPa. When the water pressure is greater than 1.0 MPa, the influence of water pressure on the roof stability is significant. Based on the comprehensive analysis of the variation trends of stress, displacement and plastic zone, the following conclusions are drawn: when the water pressure is 0.1 MPa, the the waterproof layer thickness should not be less than 1.8 m; when the water pressure is 0.5 MPa, the waterproof layer thickness should not be less than 3 m; when the water pressure is 1.0 MPa, the waterproof layer thickness should not be less than 4 m; when the water pressure is 1.5 MPa, the waterproof layer thickness should not be less than 5.6 m; when the water pressure is 2.0 MPa, the waterproof layer thickness should not be less than 7.1 m. The simulation results provide theoretical support for determining the waterproof layer thickness corresponding to different water pressure values in this ore body.

, authors=Weihua XIANG^{1, 2}, Yanze LU^{1, 2}, Sheguang WANG^{1, 2}, Xianpeng WANG^{1, 2}, Deqing GAN^{3, 4, 5}, Pengfei ZHAO^{1, 2}, Zhiyi LIU^{3, 4, 5}, Lijie WANG^{1, 2}, authorsList=Weihua XIANG, Yanze LU, Sheguang WANG, Xianpeng WANG, Deqing GAN, Pengfei ZHAO, Zhiyi LIU, Lijie WANG, authorCompany=null, correspAuthors=Xianpeng WANG, 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=1322559862823825571, articleId=1322559861628448929, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=富水岩溶含水层下开采隔水层厚度优化及稳定性分析, columnId=1226462295417598973, journalTitle=矿业研究与开发, columnName=矿山安全与环保, runingTitle=null, highlight=null, articleAbstract=

为解决富水断层破碎带中大量的裂隙水导致采场突水失稳的难题，以中关铁矿北区采场为背景，开展水压监测试验，利用FLAC3D探究采场稳定性对水压变化的敏感程度，得出变化较为明显的水压梯度。然后，建立关于“水压－隔水层厚度”的数值模型，探究不同水压值与隔水层厚度对采场稳定性的控制效果，以顶板应力、位移、塑性区分布为指标，分析其稳定性及变化规律，得出水压与隔水层厚度的关系。结果表明：中关铁矿北区矿体属于典型的大水矿床，水压值位于0.1~2.0 MPa之间；当水压大于1.0 MPa时，水压对顶板稳定性的影响显著；综合应力、位移、塑性区变化趋势得出水压为0.1 MPa时，隔水层厚度需不小于1.8 m；水压为0.5 MPa时，隔水层厚度需不小于3 m；水压为1.0 MPa时，隔水层厚度需不小于4 m；水压为1.5 MPa时，隔水层厚度需不小于5.6 m；水压为2.0 MPa时，隔水层厚度需不小于7.1 m。模拟结果为该矿体不同水压值下隔水层厚度的确定提供了理论支撑。

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向伟华（1983—），男，湖南邵阳人，硕士，正高级工程师，从事采矿工程管理。E-mail:xwh570623@163.com

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向伟华（1983—），男，湖南邵阳人，硕士，正高级工程师，从事采矿工程管理。E-mail:xwh570623@163.com

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