Article(id=1322907449757413414, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322907425740825534, 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=1742227200000, receivedDateStr=2025-03-18, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793335314454, onlineDateStr=2026-10-30, pubDate=1750780800000, pubDateStr=2025-06-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793335314454, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793335314454, creator=13701087609, updateTime=1793335314454, updator=13701087609, issue=Issue{id=1322907425740825534, tenantId=1146029695717560320, journalId=1225396423026438145, year='2025', volume='45', issue='6', pageStart='1', pageEnd='300', issueExtLink='null', onlineDate='null', pubDate='1750780800000', pubDateStr='2025-06-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793335308726, creator='13701087609', updateTime=1793335308726, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=50, endPage=58, ext={EN=ArticleExt(id=1322907449912602663, articleId=1322907449757413414, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Determination of Safety Thickness of Isolation Layer in an Iron Mine from Open-Pit to Underground Mining, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Aiming at the problem of the safe thickness of the isolation layer in an iron mine from open-pit to underground mining, the technical means combining theoretical calculation and numerical simulation was adopted to analyze the influence characteristics of the underground ore body mining process on the surface settlement and rock movement under the condition of different thickness isolation layers. The results show that the safe thickness of the isolation layer of the iron ore is from 11.25 m to 24.41 m based on the theoretical calculation method. The numerical simulation results show that when the thickness of the isolation layer is 15 m, 20 m and 25 m, the surface settlement displacement of the surface structures, the open-pit slopes and the dump sites are all small, which can meet the stability evaluation standard of the rock mass. Considering the safety of mining and avoiding the loss of mineral resources, the safety thickness of the isolation layer is recommended as 20 m. After the implementation of the plan, it is expected that the comprehensive production capacity of the mine will increase by 20%, the safety accident rate will decrease by 53%, it has advantages in terms of safety reliability, technical feasibility and economic rationality. The study can provides an important reference for similar mines to conduct open-pit to underground mining.
, authors=Qinglong ZENG
1, Xiuwen LEI
1, Jue YANG
1, Jiajun WU
2, Jielin LI
2, authorsList=Qinglong ZENG, Xiuwen LEI, Jue YANG, Jiajun WU, Jielin LI, authorCompany=null, correspAuthors=Jielin LI, 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=1322907454593445954, articleId=1322907449757413414, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=某铁矿露天转地下开采隔离层安全厚度确定研究, columnId=1226462294490657775, journalTitle=矿业研究与开发, columnName=采矿与矿山充填, runingTitle=null, highlight=null, articleAbstract=
针对某铁矿露天转地下开采工程隔离层的安全厚度问题,采用理论计算与数值模拟相结合的技术手段,分析了不同厚度隔离层条件下地下矿体回采过程对地表沉降及岩层移动情况的影响。结果表明:基于理论计算方法确定的该铁矿隔离层安全厚度范围为11.25~24.41 m;采用数值模拟方法得出了隔离层厚度为15 m、20 m、25 m时,地表构筑物、露天边坡以及排土场地表沉降位移均较小,满足岩体的稳定性评判标准;考虑矿山安全开采同时避免矿产资源损失,推荐矿山采用隔离层安全厚度为20 m。该方案实施后,预计矿山综合生产能力提升20%,安全事故率下降53%,在安全可靠性、技术可行性和经济合理性方面均有优势,为类似矿山开展露天转地下开采提供了重要参考。
, authors=曾庆隆
1, 雷秀文
1, 杨珏
1, 吴嘉骏
2, 李杰林
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曾庆隆(1982—),福建上杭人,工程师,主要从事矿山工程施工与管理工作。E-mail:2541996374@qq.com
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2.中南大学 资源与安全工程学院,湖南 长沙 410083)])])], keywords=[Keyword(id=1322907457890168930, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=EN, orderNo=1, keyword=Open-pit to underground mining), Keyword(id=1322907458158604387, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=EN, orderNo=2, keyword=Thickness of isolation layer), Keyword(id=1322907458297016420, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=EN, orderNo=3, keyword=Theoretical analysis), Keyword(id=1322907458657726565, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=EN, orderNo=4, keyword=Numerical simulation), Keyword(id=1322907458741612646, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=EN, orderNo=5, keyword=Surface displacement), Keyword(id=1322907459043602535, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=CN, orderNo=1, keyword=露天转地下开采), Keyword(id=1322907459391729768, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=CN, orderNo=2, keyword=隔离层厚度), Keyword(id=1322907461073645673, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=CN, orderNo=3, keyword=理论分析), Keyword(id=1322907461170114666, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=CN, orderNo=4, keyword=数值模拟), Keyword(id=1322907461480493163, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=CN, orderNo=5, keyword=地表位移)], refs=[Reference(id=1322907466039701634, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, doi=null, pmid=null, pmcid=null, year=2019, volume=null, issue=12, pageStart=12, pageEnd=20, url=null, language=null, rfNumber=[1], rfOrder=0, authorNames=李小双, 王运敏, 赵奎, journalName=金属矿山, refType=null, unstructuredReference=李小双,王运敏,赵奎,
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1.Hongda Blasting Engineering Group Co., Ltd., Changsha, Hunan 410011, China), AuthorCompanyExt(id=1322907455633633349, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, companyId=1322907455335837763, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.宏大爆破工程集团有限责任公司,湖南 长沙 410011)]), AuthorCompany(id=1322907456032092230, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, xref=2., ext=[AuthorCompanyExt(id=1322907456053063751, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, companyId=1322907456032092230, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.School of Resources and Safety Engineering, Central South University, Changsha, Hunan 410083, China), AuthorCompanyExt(id=1322907456061452360, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, companyId=1322907456032092230, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.中南大学 资源与安全工程学院,湖南 长沙 410083)])], figs=[ArticleFig(id=1322907461644071020, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=EN, label=Fig.1, caption=
Numerical model, figureFileSmall=pzggGCQQjpNhQU1eWb5LSg==, figureFileBig=vc8Fa62/6ho0zPbEvXy9aA==, tableContent=null), ArticleFig(id=1322907461954449517, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=CN, label=图1, caption=
数值模型, figureFileSmall=pzggGCQQjpNhQU1eWb5LSg==, figureFileBig=vc8Fa62/6ho0zPbEvXy9aA==, tableContent=null), ArticleFig(id=1322907462336131182, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=EN, label=Fig.2, caption=
Division of mining area for ore body, figureFileSmall=+FnJj57fgCduSFdTzPBYsQ==, figureFileBig=R1e7GDlETNzOMUHo/dLUQQ==, tableContent=null), ArticleFig(id=1322907462734590063, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=CN, label=图2, caption=
矿体开采区域划分, figureFileSmall=+FnJj57fgCduSFdTzPBYsQ==, figureFileBig=R1e7GDlETNzOMUHo/dLUQQ==, tableContent=null), ArticleFig(id=1322907462801698928, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=EN, label=Fig.3, caption=
Layout of monitoring lines, figureFileSmall=f3dGbv8oPYgKng9igV9cYA==, figureFileBig=K82fwRQ6lOtPtE5fHJ2WJg==, tableContent=null), ArticleFig(id=1322907462868807793, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=CN, label=图3, caption=
监测线布置, figureFileSmall=f3dGbv8oPYgKng9igV9cYA==, figureFileBig=K82fwRQ6lOtPtE5fHJ2WJg==, tableContent=null), ArticleFig(id=1322907463204352114, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=EN, label=Fig.4, caption=
Surface settlement displacement at different mining steps when the thickness of the isolation layer is 15 m, figureFileSmall=pp4mUca+FVK3ebNCHgWaag==, figureFileBig=Ul3UKfdg7XIhmxjM1I5k5g==, tableContent=null), ArticleFig(id=1322907463279849587, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=CN, label=图4, caption=
隔离层厚度15 m时不同回采步骤的地表沉降位移, figureFileSmall=pp4mUca+FVK3ebNCHgWaag==, figureFileBig=Ul3UKfdg7XIhmxjM1I5k5g==, tableContent=null), ArticleFig(id=1322907463380512884, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=EN, label=Fig.5, caption=
Settlement displacement of each monitoring line under different thicknesses of isolation layer, figureFileSmall=/5k1GrkD+LSIThmLFNjB4Q==, figureFileBig=75v7bqGyC1eTb3/Drjfw+Q==, tableContent=null), ArticleFig(id=1322907463451816053, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=CN, label=图5, caption=
不同隔离层厚度条件下各监测线沉降位移, figureFileSmall=/5k1GrkD+LSIThmLFNjB4Q==, figureFileBig=75v7bqGyC1eTb3/Drjfw+Q==, tableContent=null), ArticleFig(id=1322907463514730614, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=EN, label=Fig.6, caption=
Rock mass movement index of 1# monitoring line when the isolation layer thickness is 15 m, figureFileSmall=/TvyOEYDCVxJnrG0me7Zkg==, figureFileBig=zgAP3jkZ7yXdPFTsszWnTg==, tableContent=null), ArticleFig(id=1322907463581839479, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=CN, label=图6, caption=
隔离层厚度15 m时1#监测线岩层移动指标, figureFileSmall=/TvyOEYDCVxJnrG0me7Zkg==, figureFileBig=zgAP3jkZ7yXdPFTsszWnTg==, tableContent=null), ArticleFig(id=1322907463665725560, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=EN, label=Fig.7, caption=
Movement index of rock mass with different thicknesses of isolation layer, figureFileSmall=6HubW5imVdQNfV33IxrFPQ==, figureFileBig=KU211M98gcTKtNgVUcAjmQ==, tableContent=null), ArticleFig(id=1322907463728640121, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=CN, label=图7, caption=
不同隔离层厚度岩层移动指标, figureFileSmall=6HubW5imVdQNfV33IxrFPQ==, figureFileBig=KU211M98gcTKtNgVUcAjmQ==, tableContent=null), ArticleFig(id=1322907463795748986, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=EN, label=Table 1, caption=
Theoretical calculation values of isolation layer thickness
, figureFileSmall=null, figureFileBig=null, tableContent=
| 计算方法 | 计算公式 | 安全系数 | 隔离层厚度H/m |
|---|
| 荷载传递交汇线法 |  | 1.5 | 17.32 |
| 厚跨比法 |  | 1.5 | 11.25 |
| 结构力学简化梁法 |  | 1.5 | 15.49 |
| K.B.鲁别涅依特公式法 |  | 1.5 | 24.41 |
| 普氏拱法 |  | 1.5 | 18.87 |
), ArticleFig(id=1322907465435721851, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=CN, label=表1, caption=
隔离层厚度理论计算值
, figureFileSmall=null, figureFileBig=null, tableContent=
| 计算方法 | 计算公式 | 安全系数 | 隔离层厚度H/m |
|---|
| 荷载传递交汇线法 |  | 1.5 | 17.32 |
| 厚跨比法 |  | 1.5 | 11.25 |
| 结构力学简化梁法 |  | 1.5 | 15.49 |
| K.B.鲁别涅依特公式法 |  | 1.5 | 24.41 |
| 普氏拱法 |  | 1.5 | 18.87 |
), ArticleFig(id=1322907465523802236, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=EN, label=Table 2, caption=
Physical and mechanical parameters of numerical model materials
, figureFileSmall=null, figureFileBig=null, tableContent=
| 材料名称 | 容重/(g/cm3) | 体积模量/GPa | 剪切模量/GPa | 内摩擦角/(°) | 黏聚力/MPa | 抗拉强度/MPa | 泊松比 |
|---|
| 板岩 | 3.30 | 12.55 | 5.33 | 35.1 | 2.86 | 1.52 | 0.26 |
| 硅质板岩 | 2.64 | 14.26 | 6.13 | 36.2 | 2.88 | 1.21 | 0.26 |
| 花岗岩 | 2.57 | 15.61 | 6.21 | 37.2 | 2.86 | 1.48 | 0.26 |
| 矿体 | 2.80 | 12.16 | 6.51 | 35.4 | 3.25 | 1.62 | 0.27 |
| 充填体 | 1.96 | 0.26 | 0.16 | 29.8 | 0.61 | 0.26 | 0.21 |
), ArticleFig(id=1322907465595105405, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=CN, label=表2, caption=
数值模型材料物理力学参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 材料名称 | 容重/(g/cm3) | 体积模量/GPa | 剪切模量/GPa | 内摩擦角/(°) | 黏聚力/MPa | 抗拉强度/MPa | 泊松比 |
|---|
| 板岩 | 3.30 | 12.55 | 5.33 | 35.1 | 2.86 | 1.52 | 0.26 |
| 硅质板岩 | 2.64 | 14.26 | 6.13 | 36.2 | 2.88 | 1.21 | 0.26 |
| 花岗岩 | 2.57 | 15.61 | 6.21 | 37.2 | 2.86 | 1.48 | 0.26 |
| 矿体 | 2.80 | 12.16 | 6.51 | 35.4 | 3.25 | 1.62 | 0.27 |
| 充填体 | 1.96 | 0.26 | 0.16 | 29.8 | 0.61 | 0.26 | 0.21 |
), ArticleFig(id=1322907465683185790, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=EN, label=Table 3, caption=
Design of isolation layer thickness in similar mines at home and abroad
, figureFileSmall=null, figureFileBig=null, tableContent=
| 矿山名称 | 矿岩普氏系数 | 采空区跨度/m | 隔离层厚度/m |
|---|
| 姑山铁矿 | — | — | 18 |
| 凤凰山铁矿 | 8~12 | — | 7~10 |
| 霍各庄矿 | 7~12 | — | 36.2 |
| 金山店铁矿 | — | 12~21 | 30 |
| 石人沟铁矿 | 8~14 | — | 16~22 |
| 铜山铜矿 | 6~12 | — | 10 |
| 归来庄金矿 | 6~12 | — | 10 |
| 攀钢朱兰铁矿 | 8~16 | 15~18 | 30 |
| 维什涅沃戈尔矿山 | 12~14 | — | 10~15 |
| 依也尔多雅克夫斯基矿山 | 14~16 | — | 10 |
| 海达尔岗斯基矿山 | — | 25~30 | 15~30 |
| 依叶尔雅可夫斯基矿山 | — | 15~20 | 15~25 |
| 克里沃罗格铁矿 | — | 15~25 | 20~30 |
| 柴亮诺夫斯基矿区 | — | 25~30 | 15~20 |
), ArticleFig(id=1322907465758683263, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907449757413414, language=CN, label=表3, caption=
国内外类似矿山隔离层厚度设计情况
, figureFileSmall=null, figureFileBig=null, tableContent=
| 矿山名称 | 矿岩普氏系数 | 采空区跨度/m | 隔离层厚度/m |
|---|
| 姑山铁矿 | — | — | 18 |
| 凤凰山铁矿 | 8~12 | — | 7~10 |
| 霍各庄矿 | 7~12 | — | 36.2 |
| 金山店铁矿 | — | 12~21 | 30 |
| 石人沟铁矿 | 8~14 | — | 16~22 |
| 铜山铜矿 | 6~12 | — | 10 |
| 归来庄金矿 | 6~12 | — | 10 |
| 攀钢朱兰铁矿 | 8~16 | 15~18 | 30 |
| 维什涅沃戈尔矿山 | 12~14 | — | 10~15 |
| 依也尔多雅克夫斯基矿山 | 14~16 | — | 10 |
| 海达尔岗斯基矿山 | — | 25~30 | 15~30 |
| 依叶尔雅可夫斯基矿山 | — | 15~20 | 15~25 |
| 克里沃罗格铁矿 | — | 15~25 | 20~30 |
| 柴亮诺夫斯基矿区 | — | 25~30 | 15~20 |
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