Article(id=1322164998453969490, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322164760943116291, 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=1761753600000, receivedDateStr=2025-10-30, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793158300269, onlineDateStr=2026-10-28, pubDate=1766592000000, pubDateStr=2025-12-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793158300269, onlineIssueDateStr=2026-10-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793158300269, creator=13701087609, updateTime=1793158300269, updator=13701087609, issue=Issue{id=1322164760943116291, tenantId=1146029695717560320, journalId=1225396423026438145, year='2025', volume='45', issue='12', pageStart='1', pageEnd='302', issueExtLink='null', onlineDate='null', pubDate='1766592000000', pubDateStr='2025-12-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793158243641, creator='13701087609', updateTime=1793158929367, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322167637195477357, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322164760943116291, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322167637199671662, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322164760943116291, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1, endPage=13, ext={EN=ArticleExt(id=1322164998802096723, articleId=1322164998453969490, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Numerical Simulation Study on Ground Pressure Control Technology in Panel and Optimization of Continuous Mining in Double Middle Sections of Deep Metal Mines, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Based on the continuous mining project of the deep double middle sections in the second mining area of Jinchuan Nickel Mine, numerical analysis of ground pressure control in the panel of deep double middle sections was carried out. By comparing the distribution of maximum unbalanced force, stress, and displacement field in the lower panel under five different schemes of ground pressure control technology, it was found that Scheme Ⅴ (advanced unloading through the upper and lower panels and trapezoidal approach with two mining intervals) had the best ground pressure control effect, with the lowest extreme value of maximum unbalanced force (1.20×108 N). The maximum principal stress of the backfill at the top of the panel was negative and no tensile stress was observed. Compared with Scheme I (advance unloading through the vein in panel and rectangular approach with one mining interval), Scheme V has an average minimum principal stress increase of 0.11% and a maximum compressive stress increase of 1.56%. During the mining process, the tilting deformation of the backfill on the roof of the panel is minimized. The optimization of the ground pressure control technology scheme for the deep double middle sections shows that the “positive trapezium + concave” technology scheme has smaller stress fluctuations and displacement deformations, and the ground pressure control effect is better. The application and stability analysis results of deep mining engineering show that after adopting the optimized scheme of ground pressure control technology, the ore output of the mining area can meet the production capacity requirement of 4 million tons per year. The increase in frequency of microseismic events is relatively slow, and microseismic events occur uniformly without sudden clustering. The overall frequency coefficient of roadway damage in the 1 000 m middle section shows a decreasing trend year by year, which verifies the rationality of the ground pressure control technology scheme for the panel in deep double middle sections.
, authors=Bei CHEN
1, Haiyun ZHANG
2, Jia SHENG
2, 3, Jianqiang HU
1, Xiqing TANG
1, authorsList=Bei CHEN, Haiyun ZHANG, Jia SHENG, Jianqiang HU, Xiqing TANG, authorCompany=null, correspAuthors=null, 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=1322165002425975418, articleId=1322164998453969490, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=深部金属矿双中段连续开采盘区地压调控数值模拟分析及优化, columnId=1226462294582936453, journalTitle=矿业研究与开发, columnName=深部、深海矿产资源勘探与开发, runingTitle=null, highlight=null, articleAbstract=
以金川镍矿二矿区深部双中段连续开采工程为背景,开展深部双中段开采盘区地压调控数值分析。通过对比5种地压调控技术方案下盘区最大不平衡力、应力及位移场分布情况,得出方案Ⅴ(盘区上下盘超前卸荷与梯形进路隔二采一)的地压调控效果最优,最大不平衡力极值最低(为1.20×108 N),盘区顶部充填体最大主应力为负值,未显现拉应力;相比方案Ⅰ(盘区穿脉超前卸荷与矩形进路隔一采一),方案Ⅴ最小主应力平均极值增加0.11%,压应力极值增加1.56%,开采过程盘区顶板充填体倾斜变形最小。对深部双中段开采区域地压调控技术方案进行优化可知,“正阶梯型+凹型”技术方案应力波动及位移变形量均较小,地压调控效果较优。深部采矿工程应用及稳定性分析结果表明,采用地压调控技术优化方案后,矿区出矿量可满足矿区400万t/a生产能力要求;微震事件频数变化增幅较缓,微震事件较均匀发生,没有突然聚集发生的情况;1 000 m中段巷道破坏频次系数整体呈逐年减弱趋势,验证了深部双中段开采盘区地压调控技术方案的合理性。
, authors=陈蓓
1, 张海云
2, 盛佳
2, 3, 胡建强
1, 唐夕晴
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1.湖南理工职业技术学院,湖南 湘潭市 411104, bio={"content":"
陈蓓(1982—),女,湖南祁阳人,硕士,高级工程师,主要从事自动控制和监测技术研究。E-mail:34982561@qq.com
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陈蓓(1982—),女,湖南祁阳人,硕士,高级工程师,主要从事自动控制和监测技术研究。E-mail:34982561@qq.com
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2.长沙矿山研究院有限责任公司,湖南 长沙 410012
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The Chinese Journal of Nonferrous Metals,
2022,
32 (12): 3871-3882., articleTitle=Monitoring of mining environment and dynamic control technology of ground pressure in deep and large mining sections, refAbstract=null)], funds=[Fund(id=1322165010646811350, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, awardId=2023YFC2907404, language=CN, fundingSource=国家重点研发计划项目(2023YFC2907404), fundOrder=null, country=null), Fund(id=1322165010739086039, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, awardId=2023HNVITZK001, language=CN, fundingSource=湖南理工职业技术学院自然科学研究项目(2023HNVITZK001), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1322165003281613435, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, xref=1., ext=[AuthorCompanyExt(id=1322165003294196348, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, companyId=1322165003281613435, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.Hunan Vocational Institute of Technology, Xiangtan, Hunan 411104, China), AuthorCompanyExt(id=1322165003310973565, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, companyId=1322165003281613435, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.湖南理工职业技术学院,湖南 湘潭市 411104)]), AuthorCompany(id=1322165003382276734, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, xref=2., ext=[AuthorCompanyExt(id=1322165003390665343, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, companyId=1322165003382276734, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.Changsha Institute of Mining Research Co., Ltd., Changsha, Hunan 410012, China), AuthorCompanyExt(id=1322165003407442560, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, companyId=1322165003382276734, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.长沙矿山研究院有限责任公司,湖南 长沙 410012)]), AuthorCompany(id=1322165003692655233, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, xref=3., ext=[AuthorCompanyExt(id=1322165003713626754, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, companyId=1322165003692655233, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.State Key Laboratory of Safety Technology for Metal Mines, Changsha, Hunan 410012, China), AuthorCompanyExt(id=1322165003726209667, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, companyId=1322165003692655233, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.金属矿山安全技术国家重点实验室,湖南 长沙 410012)])], figs=[ArticleFig(id=1322165006377009832, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=EN, label=Fig.1, caption=
FLAC3D three-dimensional numerical model of No.2 mining area, figureFileSmall=7UE318/K/bla4ADRAUVjag==, figureFileBig=pqSzGu16LOt2vSuYnOHuDg==, tableContent=null), ArticleFig(id=1322165006439924393, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=CN, label=图1, caption=
二矿区FLAC3D三维数值模型, figureFileSmall=7UE318/K/bla4ADRAUVjag==, figureFileBig=pqSzGu16LOt2vSuYnOHuDg==, tableContent=null), ArticleFig(id=1322165006678999722, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=EN, label=Fig.2, caption=
16-row principal stress cloud diagrams of the mining process in No.2 mining area, figureFileSmall=bzoow8uLWtuV0tWspJebNw==, figureFileBig=T9cgrHqTrqey2LiwV/zREQ==, tableContent=null), ArticleFig(id=1322165006771274411, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=CN, label=图2, caption=
二矿区开采过程16行主应力云图, figureFileSmall=bzoow8uLWtuV0tWspJebNw==, figureFileBig=T9cgrHqTrqey2LiwV/zREQ==, tableContent=null), ArticleFig(id=1322165006846771884, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=EN, label=Fig.3, caption=
16-row displacement change cloud diagrams of the mining process in No.2 mining area, figureFileSmall=5sKRhWeXx8xTkRgkLIhdvg==, figureFileBig=Oe8K5NtT/i6wBbCKiqLtoQ==, tableContent=null), ArticleFig(id=1322165006939046573, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=CN, label=图3, caption=
二矿区开采过程16行位移变化云图, figureFileSmall=5sKRhWeXx8xTkRgkLIhdvg==, figureFileBig=Oe8K5NtT/i6wBbCKiqLtoQ==, tableContent=null), ArticleFig(id=1322165007031321262, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=EN, label=Fig.4, caption=
Numerical models of panel ground pressure control for deep double middle section mining, figureFileSmall=nDLsCe713OnHCZR5z3ZHrQ==, figureFileBig=3htOCAljUvv7D69rPG/bww==, tableContent=null), ArticleFig(id=1322165007115207343, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=CN, label=图4, caption=
深部双中段开采盘区地压调控数值模型, figureFileSmall=nDLsCe713OnHCZR5z3ZHrQ==, figureFileBig=3htOCAljUvv7D69rPG/bww==, tableContent=null), ArticleFig(id=1322165007182316208, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=EN, label=Fig.5, caption=
The average value and extreme value of the maximum unbalance stress in mining process of panel ground pressure control for deep double middle section mining, figureFileSmall=o64vtEQ4lJ21GjBHHePXcQ==, figureFileBig=BmmfuAN72EYy6BlHfT26ww==, tableContent=null), ArticleFig(id=1322165007266202289, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=CN, label=图5, caption=
深部双中段开采盘区地压调控回采过程最大不平衡力平均值及极值, figureFileSmall=o64vtEQ4lJ21GjBHHePXcQ==, figureFileBig=BmmfuAN72EYy6BlHfT26ww==, tableContent=null), ArticleFig(id=1322165007329116850, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=EN, label=Fig.6, caption=
The extremum of maximum principal stress of the top backfill in deep double middle mining panel under panel ground pressure control scheme, figureFileSmall=lvnGDR6XNVBU47KbZCNH0w==, figureFileBig=bjF8erPEfW93vuRE6VZ6ig==, tableContent=null), ArticleFig(id=1322165007396225715, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=CN, label=图6, caption=
深部双中段开采地压调控方案盘区顶部充填体最大主应力极值, figureFileSmall=lvnGDR6XNVBU47KbZCNH0w==, figureFileBig=bjF8erPEfW93vuRE6VZ6ig==, tableContent=null), ArticleFig(id=1322165007496889012, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=EN, label=Fig.7, caption=
The maximum principal stress distribution cloud diagrams during the mining process in the vertical direction of the roadway for scheme Ⅴ, figureFileSmall=UUrBHKh63X0DHXwr5NO/sA==, figureFileBig=/irRp15o2cuTpzsLDR0htg==, tableContent=null), ArticleFig(id=1322165007559803573, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=CN, label=图7, caption=
方案Ⅴ垂直走向进路盘区回采过程最大主应力分布云图, figureFileSmall=UUrBHKh63X0DHXwr5NO/sA==, figureFileBig=/irRp15o2cuTpzsLDR0htg==, tableContent=null), ArticleFig(id=1322165007622718134, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=EN, label=Fig.8, caption=
The extreme value and average value of tensile stress in the mining process of the vertical approach panel of each technical scheme, figureFileSmall=67QI2QDpXzCmqGKrMFRHjg==, figureFileBig=Z5GCkZ1xg8/e7ar6Eja+/w==, tableContent=null), ArticleFig(id=1322165007710798519, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=CN, label=图8, caption=
各技术方案垂直走向进路盘区回采过程拉应力极值与均值, figureFileSmall=67QI2QDpXzCmqGKrMFRHjg==, figureFileBig=Z5GCkZ1xg8/e7ar6Eja+/w==, tableContent=null), ArticleFig(id=1322165007819850424, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=EN, label=Fig.9, caption=
The minimum principal stress distribution cloud diagrams during the mining process in the vertical direction of the roadway for schemeⅤ, figureFileSmall=DR7kDRC7elMoraVl4NGEAA==, figureFileBig=s6vyijY86DgsxwiZGUTw3w==, tableContent=null), ArticleFig(id=1322165007912125113, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=CN, label=图9, caption=
方案Ⅴ垂直走向进路盘区回采过程最小主应力分布云图, figureFileSmall=DR7kDRC7elMoraVl4NGEAA==, figureFileBig=s6vyijY86DgsxwiZGUTw3w==, tableContent=null), ArticleFig(id=1322165007975039674, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=EN, label=Fig.10, caption=
The extreme value and average value of compressive stress in the mining process of the vertical approach panel for each scheme, figureFileSmall=nSNT7cEbvg5vlAQltl3Tew==, figureFileBig=Cg93UUPRhlX4lU69e8piAg==, tableContent=null), ArticleFig(id=1322165008058925755, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=CN, label=图10, caption=
各方案垂直走向进路盘区回采过程压应力极值与均值, figureFileSmall=nSNT7cEbvg5vlAQltl3Tew==, figureFileBig=Cg93UUPRhlX4lU69e8piAg==, tableContent=null), ArticleFig(id=1322165008134423228, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=EN, label=Fig.11, caption=
Inclination rate of top backfill of panel during the mining process for scheme Ⅴ, figureFileSmall=JqCcfMfM6lcpp6WEBTI0GA==, figureFileBig=AcUDqakie1tb7KWdwVoqTw==, tableContent=null), ArticleFig(id=1322165008302195389, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=CN, label=图11, caption=
方案Ⅴ回采过程盘区顶部充填体倾斜率, figureFileSmall=JqCcfMfM6lcpp6WEBTI0GA==, figureFileBig=AcUDqakie1tb7KWdwVoqTw==, tableContent=null), ArticleFig(id=1322165008373498558, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=EN, label=Fig.12, caption=
The extreme value of the inclination rate of the top backfill of the panel during the mining process for each scheme, figureFileSmall=OBjOOHMuf7Dkzk5ybvJNmg==, figureFileBig=mr4Ce/D8XfeNHV7yFOt1QQ==, tableContent=null), ArticleFig(id=1322165008440607423, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=CN, label=图12, caption=
各方案回采过程盘区顶部充填体倾斜率极值, figureFileSmall=OBjOOHMuf7Dkzk5ybvJNmg==, figureFileBig=mr4Ce/D8XfeNHV7yFOt1QQ==, tableContent=null), ArticleFig(id=1322165008524493504, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=EN, label=Fig.13, caption=
The “positive step type+concave type”control technology scheme of ground pressure in deep double middle mining area, figureFileSmall=7kOVENXZS89JzKZZAk6Fsg==, figureFileBig=760OQxat9PkrNEEpGnLVWg==, tableContent=null), ArticleFig(id=1322165008608379585, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=CN, label=图13, caption=
深部双中段开采“正阶梯型+凹型”区域地压调控技术方案, figureFileSmall=7kOVENXZS89JzKZZAk6Fsg==, figureFileBig=760OQxat9PkrNEEpGnLVWg==, tableContent=null), ArticleFig(id=1322165008696459970, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=EN, label=Fig.14, caption=
The “ladder type+convex type”control technology scheme of ground pressure in deep double middle mining area, figureFileSmall=P7t8J+pO9Vmt8CM83S6cew==, figureFileBig=sIlPwFVFifIHxpnePTXZ5Q==, tableContent=null), ArticleFig(id=1322165008776151747, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=CN, label=图14, caption=
深部双中段开采“正阶梯型+凸型”区域地压调控技术方案, figureFileSmall=P7t8J+pO9Vmt8CM83S6cew==, figureFileBig=sIlPwFVFifIHxpnePTXZ5Q==, tableContent=null), ArticleFig(id=1322165008855843524, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=EN, label=Fig.15, caption=
Variation trend of displacement and stress monitoring of backfill in 13-row at 998 m level under the ground pressure control scheme in deep mining area, figureFileSmall=nbTDMUdWqdpiOdBNb5jGgg==, figureFileBig=l3IK+k7CGu9I741/SOvf0g==, tableContent=null), ArticleFig(id=1322165008927146693, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=CN, label=图15, caption=
深部开采区域地压调控技术方案998 m水平13行充填体位移及应力监测变化趋势, figureFileSmall=nbTDMUdWqdpiOdBNb5jGgg==, figureFileBig=l3IK+k7CGu9I741/SOvf0g==, tableContent=null), ArticleFig(id=1322165008994255558, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=EN, label=Fig.16, caption=
Variation trend of strain monitoring in the hanging wall section roadway at 1 000 m level under each technical scheme of region ground pressure control scheme, figureFileSmall=n6lfuj08AlkhcbaPLXnjYg==, figureFileBig=rzxIufSakRrrthI6SfgGfw==, tableContent=null), ArticleFig(id=1322165009111696071, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=CN, label=图16, caption=
区域地压调控技术方案1 000 m水平上盘分段巷道应变监测变化趋势, figureFileSmall=n6lfuj08AlkhcbaPLXnjYg==, figureFileBig=rzxIufSakRrrthI6SfgGfw==, tableContent=null), ArticleFig(id=1322165009182999240, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=EN, label=Fig.17, caption=
The vertical projection of the middle section of 1 000 m and 850 m in No.2 mining area in 2023, figureFileSmall=n1D9c46jxitYYZSUOgqhHQ==, figureFileBig=M/cnwvaNemKQ77UoZrY7AQ==, tableContent=null), ArticleFig(id=1322165009283662537, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=CN, label=图17, caption=
2023年度二矿区1 000 m中段和850 m中段回采纵投影图, figureFileSmall=n1D9c46jxitYYZSUOgqhHQ==, figureFileBig=M/cnwvaNemKQ77UoZrY7AQ==, tableContent=null), ArticleFig(id=1322165009388520138, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=EN, label=Fig.18, caption=
The change curves of failure frequency coefficient of roadway in the middle section of No.2 mining area from 2019 to 2023, figureFileSmall=lZ1Fv/MyiB0A0cKwtvZaFA==, figureFileBig=xMlgbfydFOO1wUjejzHPdg==, tableContent=null), ArticleFig(id=1322165009476600523, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=CN, label=图18, caption=
2019—2023年二矿区中段巷道破坏频次系数变化曲线, figureFileSmall=lZ1Fv/MyiB0A0cKwtvZaFA==, figureFileBig=xMlgbfydFOO1wUjejzHPdg==, tableContent=null), ArticleFig(id=1322165009585652428, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=EN, label=Table 1, caption=
Mechanical parameters of rock mass in No.2 mining area
, figureFileSmall=null, figureFileBig=null, tableContent=
| 岩性 | 抗压强度/MPa | 抗拉强度/MPa | 黏聚力/MPa | 内摩擦角/(°) | 变形模量/GPa | 泊松比 | 体积模量/GPa | 剪切模量/GPa |
|---|
| 大理岩 | 39.19 | 1.72 | 2.10 | 36.19 | 15.89 | 0.25 | 10.59 | 2.88 |
| 花岗岩 | 33.64 | 0.25 | 1.14 | 43.58 | 11.60 | 0.25 | 7.73 | 0.97 |
| 含辉岩 | 16.11 | 0.15 | 0.85 | 38.45 | 3.16 | 0.29 | 2.51 | 0.28 |
| 二辉岩 | 22.24 | 0.18 | 1.09 | 38.45 | 2.99 | 0.26 | 2.08 | 0.62 |
| 混合岩 | 14.21 | 0.11 | 1.41 | 40.34 | 6.56 | 0.29 | 5.21 | 0.26 |
| 角闪岩 | 15.79 | 0.13 | 1.23 | 39.99 | 4.26 | 0.27 | 3.09 | 0.39 |
| 断层 | 9.50 | 0.09 | 0.24 | 35.00 | 3.20 | 0.25 | 2.13 | 2.00 |
), ArticleFig(id=1322165009669538509, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=CN, label=表1, caption=
二矿区矿岩体力学参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 岩性 | 抗压强度/MPa | 抗拉强度/MPa | 黏聚力/MPa | 内摩擦角/(°) | 变形模量/GPa | 泊松比 | 体积模量/GPa | 剪切模量/GPa |
|---|
| 大理岩 | 39.19 | 1.72 | 2.10 | 36.19 | 15.89 | 0.25 | 10.59 | 2.88 |
| 花岗岩 | 33.64 | 0.25 | 1.14 | 43.58 | 11.60 | 0.25 | 7.73 | 0.97 |
| 含辉岩 | 16.11 | 0.15 | 0.85 | 38.45 | 3.16 | 0.29 | 2.51 | 0.28 |
| 二辉岩 | 22.24 | 0.18 | 1.09 | 38.45 | 2.99 | 0.26 | 2.08 | 0.62 |
| 混合岩 | 14.21 | 0.11 | 1.41 | 40.34 | 6.56 | 0.29 | 5.21 | 0.26 |
| 角闪岩 | 15.79 | 0.13 | 1.23 | 39.99 | 4.26 | 0.27 | 3.09 | 0.39 |
| 断层 | 9.50 | 0.09 | 0.24 | 35.00 | 3.20 | 0.25 | 2.13 | 2.00 |
), ArticleFig(id=1322165009786979022, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=EN, label=Table 2, caption=
Strength parameters of cemented filling body in No.2 mining area
, figureFileSmall=null, figureFileBig=null, tableContent=
| 名称 | 密度/(kg/cm3) | 弹性模量/GPa | 泊松比 | 体积模量/GPa | 切应变模量/GPa | 黏聚力/MPa | 内摩擦角/(°) | 抗拉强度/MPa |
|---|
| 胶结充填体 | 1.72 | 0.87 | 0.32 | 0.81 | 0.57 | 0.76 | 36.60 | 0.50 |
), ArticleFig(id=1322165009979917007, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=CN, label=表2, caption=
二矿区胶结充填体强度参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 名称 | 密度/(kg/cm3) | 弹性模量/GPa | 泊松比 | 体积模量/GPa | 切应变模量/GPa | 黏聚力/MPa | 内摩擦角/(°) | 抗拉强度/MPa |
|---|
| 胶结充填体 | 1.72 | 0.87 | 0.32 | 0.81 | 0.57 | 0.76 | 36.60 | 0.50 |
), ArticleFig(id=1322165010177049296, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=EN, label=Table 3, caption=
Comparison between the measured values and the calculated values of the stress in the mining process of No.2 mining area
, figureFileSmall=null, figureFileBig=null, tableContent=
| 监测点位置 | 岩性 | 深度/m | 主应力实测值/MPa | 主应力计算值/MPa |
|---|
| 最大值 | 最小值 | 最大值 | 最小值 |
|---|
| 近地表 | 围岩 | 20~30 | 3.00 | — | 1.37~3.15 | 0.62~2.00 |
| 近地表 | 矿岩 | 430~530 | 20.00~30.00 | — | 22.87~29.75 | 12.53~16.22 |
| 西部 | 围岩 | 510 | 24.50 | 15.40 | 25.51~27.30 | 14.04~14.93 |
| 西部 | 富矿体 | 555 | 18.45~22.13 | 3.99~10.80 | 21.05~30.00 | 2.64~10.00 |
| 1 150 m下盘运输道 | 围岩 | 580 | 31.18 | 10.88 | 25.00~35.00 | 10.00~18.00 |
| 1 150 m TB7变电站 | 围岩 | 580 | 24.88~28.44 | 9.44~12.96 | 25.00~30.00 | 10.00~18.00 |
| 1 000 m水平20行富矿体中部 | 富矿体 | 730 | 17.10~25.80 | 8.20~12.10 | 30.00~45.00 | 8.00~12.00 |
| 1 000 m水平12行富矿体中部 | 富矿体 | 730 | 23.20 | 10.90 | 28.41~35.00 | 8.00~10.00 |
| 1 000 m上盘围岩 | 围岩 | 730 | 31.64~37.86 | 11.59~13.09 | 28.40~40.00 | 12.00~23.65 |
), ArticleFig(id=1322165010273518289, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=CN, label=表3, caption=
二矿区开采过程应力实测值与计算值对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 监测点位置 | 岩性 | 深度/m | 主应力实测值/MPa | 主应力计算值/MPa |
|---|
| 最大值 | 最小值 | 最大值 | 最小值 |
|---|
| 近地表 | 围岩 | 20~30 | 3.00 | — | 1.37~3.15 | 0.62~2.00 |
| 近地表 | 矿岩 | 430~530 | 20.00~30.00 | — | 22.87~29.75 | 12.53~16.22 |
| 西部 | 围岩 | 510 | 24.50 | 15.40 | 25.51~27.30 | 14.04~14.93 |
| 西部 | 富矿体 | 555 | 18.45~22.13 | 3.99~10.80 | 21.05~30.00 | 2.64~10.00 |
| 1 150 m下盘运输道 | 围岩 | 580 | 31.18 | 10.88 | 25.00~35.00 | 10.00~18.00 |
| 1 150 m TB7变电站 | 围岩 | 580 | 24.88~28.44 | 9.44~12.96 | 25.00~30.00 | 10.00~18.00 |
| 1 000 m水平20行富矿体中部 | 富矿体 | 730 | 17.10~25.80 | 8.20~12.10 | 30.00~45.00 | 8.00~12.00 |
| 1 000 m水平12行富矿体中部 | 富矿体 | 730 | 23.20 | 10.90 | 28.41~35.00 | 8.00~10.00 |
| 1 000 m上盘围岩 | 围岩 | 730 | 31.64~37.86 | 11.59~13.09 | 28.40~40.00 | 12.00~23.65 |
), ArticleFig(id=1322165010344821458, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=EN, label=Table 4, caption=
Comparison of accumulated displacement between on-site measurement and numerical simulation at monitoring points of 16-row in the 1 250 m middle section of No.2 mining area
, figureFileSmall=null, figureFileBig=null, tableContent=
| 测点编号 | 测点位置 | 实测累积位移/mm | 模拟累积位移/mm |
|---|
| 16-1 | 下盘围岩 | 577 | 267 |
| 16-2 | 下盘接触面 | 535 | 303 |
| 16-3 | 下盘充填体 | 592 | 209 |
| 16-5 | 上盘充填体 | 544 | 163 |
| 16-6 | 上盘接触面 | 474 | 315 |
), ArticleFig(id=1322165010420318931, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=CN, label=表4, caption=
二矿区1 250 m中段16行监测点现场实测和数值模拟累计位移对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 测点编号 | 测点位置 | 实测累积位移/mm | 模拟累积位移/mm |
|---|
| 16-1 | 下盘围岩 | 577 | 267 |
| 16-2 | 下盘接触面 | 535 | 303 |
| 16-3 | 下盘充填体 | 592 | 209 |
| 16-5 | 上盘充填体 | 544 | 163 |
| 16-6 | 上盘接触面 | 474 | 315 |
), ArticleFig(id=1322165010491622100, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=EN, label=Table 5, caption=
Technical schemes of ground pressure control in mining panel
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案 | 开采设计 |
|---|
| 方案Ⅰ | 盘区穿脉超前卸荷与矩形进路隔一采一 |
| 方案Ⅱ | 盘区上下盘超前卸荷与矩形进路隔二采一 |
| 方案Ⅲ | 盘区穿脉超前卸荷与梯形进路隔一采一 |
| 方案Ⅳ | 盘区上下盘超前卸荷与梯形进路隔一采一 |
| 方案Ⅴ | 盘区上下盘超前卸荷与梯形进路隔二采一 |
), ArticleFig(id=1322165010554536661, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164998453969490, language=CN, label=表5, caption=
开采盘区地压调控技术方案
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案 | 开采设计 |
|---|
| 方案Ⅰ | 盘区穿脉超前卸荷与矩形进路隔一采一 |
| 方案Ⅱ | 盘区上下盘超前卸荷与矩形进路隔二采一 |
| 方案Ⅲ | 盘区穿脉超前卸荷与梯形进路隔一采一 |
| 方案Ⅳ | 盘区上下盘超前卸荷与梯形进路隔一采一 |
| 方案Ⅴ | 盘区上下盘超前卸荷与梯形进路隔二采一 |
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