Article(id=1322161795423391822, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322161751467078485, 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=1727366400000, receivedDateStr=2024-09-27, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793157536606, onlineDateStr=2026-10-28, pubDate=1758729600000, pubDateStr=2025-09-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793157536606, onlineIssueDateStr=2026-10-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793157536606, creator=13701087609, updateTime=1793157536606, updator=13701087609, issue=Issue{id=1322161751467078485, tenantId=1146029695717560320, journalId=1225396423026438145, year='2025', volume='45', issue='9', pageStart='1', pageEnd='314', issueExtLink='null', onlineDate='null', pubDate='1758729600000', pubDateStr='2025-09-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793157526127, creator='13701087609', updateTime=1793158877659, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322167420266074322, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322161751467078485, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322167420266074323, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322161751467078485, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=17, endPage=26, ext={EN=ArticleExt(id=1322161795574386767, articleId=1322161795423391822, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Study on Optimization of Stope Structural Parameters in Filling Mining Stope for Gently Inclined Thick Ore Body, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=
The gently inclined thick ore body below -675 m level in Chengchao Iron Mine is mined by two-step mining with sublevel drilling open stoping and subsequent filling. According to the theoretical analysis results, three numerical simulation research schemes of mine room (pillar) span were formulated. The stress, displacement and plastic zone distribution of each scheme were compared and analyzed, and the influences of different spans of mine room (pillar) on the stability of stope was explored. The results show that when the span of mine room (pillar) is 15 m, the maximum tensile stress of the goaf roof is less than 2 MPa, and the maximum compressive stress is less than 5 MPa, which is within the allowable range of the rock mass. The maximum subsidence value of the goaf roof is less than 5 cm, which does not exceed the allowable limit displacement. There is no large area of plastic zone penetration in the structural plane of the goaf. When the span of the mine room is 18 m, the roof settlement is 52.3 mm (over the warning value of 50 mm), which need to be supported. It is determined that the span of mine room (pillar) is 15 m as the optimal scheme. The maximum vertical subsidence value of the monitoring points in the center of the roof is 0.033 7 m, and the maximum vertical subsidence value of the monitoring points in the center of the surrounding rock is 0.031 4 m. According to the evaluation results of the influence of ground deformation on the buildings (structures), the mining of the ore body below -675 m level will have a slight impact on the surface buildings (structures), and the influence degree is within the allowable range, which ensures the safety of the new Chengchao Bay country on the surface of Chengchao Iron Mine.
, authors=Ping WANG
1, Menghan QI
1, Aiping CHENG
1, Yamin HAN
2, Jimin LI
2, authorsList=Ping WANG, Menghan QI, Aiping CHENG, Yamin HAN, Jimin LI, authorCompany=null, correspAuthors=Menghan QI, 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=1322161803698753683, articleId=1322161795423391822, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=缓倾斜厚大矿体充填开采采场结构参数优化研究, columnId=1226462294490657775, journalTitle=矿业研究与开发, columnName=采矿与矿山充填, runingTitle=null, highlight=null, articleAbstract=
程潮铁矿-675 m水平以下缓倾斜厚大矿体采用分段凿岩空场嗣后充填两步骤回采。根据理论分析结果制定3种矿房(柱)跨度的数值模拟研究方案,对比分析各方案的应力、位移及塑性区的分布情况,探究不同矿房(柱)跨度对采场稳定性的影响。结果表明:当矿房(柱)跨度为15 m时,采空区顶板所受最大拉应力均小于2 MPa,最大压应力均小于5 MPa,在岩体可允许范围,采空区顶板最大沉降值均小于5 cm,未超过容许极限位移量,采空区结构面没有出现大面积的塑性区贯穿;当矿房跨度18 m时,顶板沉降量为52.3 mm(超警戒值50 mm),确定矿房(柱)跨度15 m为最优方案;顶板中心监测点的最大垂直沉降值为0.033 7 m,围岩中心监测点的最大垂直沉降值为0.031 4 m,根据地面变形对建(构)筑物影响等级评定结果,开采-675 m水平以下的矿体对地表建(构)筑物会产生轻微的影响,其影响程度在允许范围之内,保证了程潮铁矿地表新程潮大湾村的安全性。
, authors=王平
1, 齐梦寒
1, 程爱平
1, 韩亚民
2, 李吉民
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et al. Optimization of stope structure parameters of sublevel open stope with delayed filling method for deep broken orebody[J].
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2023(8):181-188., articleTitle=Optimization of stope structure parameters of sublevel open stope with delayed filling method for deep broken orebody, refAbstract=null), Reference(id=1322161818869551416, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, doi=null, pmid=null, pmcid=null, year=2011, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=[20], rfOrder=35, authorNames=甯瑜琳, journalName=null, refType=null, unstructuredReference=甯瑜琳.深部缓倾斜薄矿体采场结构参数优化及采动沉陷特性研究[D]. 长沙:中南大学,
2011., articleTitle=深部缓倾斜薄矿体采场结构参数优化及采动沉陷特性研究, refAbstract=null), Reference(id=1322161818961826105, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, doi=null, pmid=null, pmcid=null, year=2011, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=[20], rfOrder=36, authorNames=NING Yulin, journalName=null, refType=null, unstructuredReference=
NING Yulin. Research on optimization of stope parameters of deep gently inclined thin ore body and mining subsidence characteristics[D]. Changsha: Central South University,
2011., articleTitle=Research on optimization of stope parameters of deep gently inclined thin ore body and mining subsidence characteristics, refAbstract=null)], funds=[Fund(id=1322161814109016331, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, awardId=52474143, language=CN, fundingSource=国家自然科学基金项目(52474143), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1322161803912663190, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, xref=1., ext=[AuthorCompanyExt(id=1322161803921051799, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, companyId=1322161803912663190, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.School of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, Hubei 430081, China), AuthorCompanyExt(id=1322161803929440408, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, companyId=1322161803912663190, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.武汉科技大学资源与环境工程学院,湖北 武汉 430081)]), AuthorCompany(id=1322161804000743577, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, xref=2., ext=[AuthorCompanyExt(id=1322161804009132186, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, companyId=1322161804000743577, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.WISCO Resources Group Chengchao Mining Co., Ltd., Ezhou, Hubei 436000, China), AuthorCompanyExt(id=1322161804017520795, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, companyId=1322161804000743577, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.武钢资源集团程潮铁矿矿业有限公司,湖北 鄂州市 436000)])], figs=[ArticleFig(id=1322161807935000780, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Fig.1, caption=
Vertical projection of ore body in Chengchao Iron Mine, figureFileSmall=JFMXml6gAYEL3MdF4Wod5w==, figureFileBig=8raW9FlO1+IwaFpghKX7HQ==, tableContent=null), ArticleFig(id=1322161808006303949, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=图1, caption=
程潮铁矿矿体垂直投影, figureFileSmall=JFMXml6gAYEL3MdF4Wod5w==, figureFileBig=8raW9FlO1+IwaFpghKX7HQ==, tableContent=null), ArticleFig(id=1322161808224407759, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Fig.2, caption=
Stress analysis of rock beam, figureFileSmall=WaWJEa1O3u/KCAzaa41WDA==, figureFileBig=KtrX6zISvlEkAgpQgF+Cdg==, tableContent=null), ArticleFig(id=1322161808287322320, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=图2, caption=
岩梁受力分析, figureFileSmall=WaWJEa1O3u/KCAzaa41WDA==, figureFileBig=KtrX6zISvlEkAgpQgF+Cdg==, tableContent=null), ArticleFig(id=1322161808408957137, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Fig.3, caption=
Extraction flow chart of 15 m span(unit:m), figureFileSmall=jZnbjbaXFz6J7PaRvM0TZQ==, figureFileBig=plrBa7Th83lGJ7aYhRB3UQ==, tableContent=null), ArticleFig(id=1322161808497037523, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=图3, caption=
跨度为15 m的回采流程(单位:m), figureFileSmall=jZnbjbaXFz6J7PaRvM0TZQ==, figureFileBig=plrBa7Th83lGJ7aYhRB3UQ==, tableContent=null), ArticleFig(id=1322161808589312212, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Fig.4, caption=
Block model, figureFileSmall=eTvx2aFG+rGmsZJfUT+EDA==, figureFileBig=yejok+H+pHws3jO+GBoq/A==, tableContent=null), ArticleFig(id=1322161808664809686, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=图4, caption=
矿块模型, figureFileSmall=eTvx2aFG+rGmsZJfUT+EDA==, figureFileBig=yejok+H+pHws3jO+GBoq/A==, tableContent=null), ArticleFig(id=1322161808761278679, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Fig.5, caption=
Initial stress field, figureFileSmall=wbkwdmdlA45ee7k9tOJdIA==, figureFileBig=KN4ma64M4lKd3uyIrDd5+A==, tableContent=null), ArticleFig(id=1322161808849359064, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=图5, caption=
初始应力场, figureFileSmall=wbkwdmdlA45ee7k9tOJdIA==, figureFileBig=KN4ma64M4lKd3uyIrDd5+A==, tableContent=null), ArticleFig(id=1322161808970993881, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Fig.6, caption=
Minimum principal stress nephograms of mining and filling with a span of 12 m, figureFileSmall=TsWZY+pwYzcZeyi0wDcnYw==, figureFileBig=lSzz0+bPyJZXZBC6mj8s5g==, tableContent=null), ArticleFig(id=1322161809138766043, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=图6, caption=
跨度为12 m 时开采与充填最小主应力云图, figureFileSmall=TsWZY+pwYzcZeyi0wDcnYw==, figureFileBig=lSzz0+bPyJZXZBC6mj8s5g==, tableContent=null), ArticleFig(id=1322161809272983772, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Fig.7, caption=
Minimum principal stress nephograms of mining and filling with a span of 15 m, figureFileSmall=FbUAeCyXfaEIHZLhFfSfag==, figureFileBig=XdlWxwe7E0fQqfT1wUZrzw==, tableContent=null), ArticleFig(id=1322161809340092638, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=图7, caption=
跨度为15 m 时开采与充填最小主应力云图, figureFileSmall=FbUAeCyXfaEIHZLhFfSfag==, figureFileBig=XdlWxwe7E0fQqfT1wUZrzw==, tableContent=null), ArticleFig(id=1322161809415590111, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Fig.8, caption=
Minimum principal stress nephograms of mining and filling with a span of 18 m, figureFileSmall=+523/N1bE5Swaskjn3MtCA==, figureFileBig=ZBAL1TcLFs/SGr7pBShrDw==, tableContent=null), ArticleFig(id=1322161809486893280, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=图8, caption=
跨度为18 m 时开采与充填最小主应力云图, figureFileSmall=+523/N1bE5Swaskjn3MtCA==, figureFileBig=ZBAL1TcLFs/SGr7pBShrDw==, tableContent=null), ArticleFig(id=1322161809574973665, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Fig.9, caption=
Relationship between maximum stress of goaf roof and span of mine house, figureFileSmall=BrbucGIWD4y90gqGiDnMlg==, figureFileBig=RYQvS7MGH/YC4YmO+17rlA==, tableContent=null), ArticleFig(id=1322161809684025571, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=图9, caption=
采空区顶板承受最大应力与矿房跨度的关系, figureFileSmall=BrbucGIWD4y90gqGiDnMlg==, figureFileBig=RYQvS7MGH/YC4YmO+17rlA==, tableContent=null), ArticleFig(id=1322161809784688868, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Fig.10, caption=
Vertical displacement nephograms of mining and filling with a span of 12 m, figureFileSmall=Pk5u0E+v6mZbKYxv2ZoYVw==, figureFileBig=+vsyZosSd3Ec66pxFH9iNw==, tableContent=null), ArticleFig(id=1322161809868574949, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=图10, caption=
跨度为12 m 时开采与充填竖直方向位移云图, figureFileSmall=Pk5u0E+v6mZbKYxv2ZoYVw==, figureFileBig=+vsyZosSd3Ec66pxFH9iNw==, tableContent=null), ArticleFig(id=1322161809939878119, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Fig.11, caption=
Vertical displacement nephograms of mining and filling with a span of 15 m, figureFileSmall=5pwooJSNDV1l6mLvogwvoA==, figureFileBig=ccGq3AKHS2vHjZwYY8J8PQ==, tableContent=null), ArticleFig(id=1322161810027958504, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=图11, caption=
跨度为15 m 时开采与充填竖直方向位移云图, figureFileSmall=5pwooJSNDV1l6mLvogwvoA==, figureFileBig=ccGq3AKHS2vHjZwYY8J8PQ==, tableContent=null), ArticleFig(id=1322161810095067369, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Fig.12, caption=
Vertical displacement nephograms of mining and filling with a span of 18 m, figureFileSmall=EQmKqJvreMN9gmwB9H9sSQ==, figureFileBig=Q8j2UyvT8pbrr8cK3w8CuQ==, tableContent=null), ArticleFig(id=1322161810178953450, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=图12, caption=
跨度为18 m 时开采与充填竖直方向位移云图, figureFileSmall=EQmKqJvreMN9gmwB9H9sSQ==, figureFileBig=Q8j2UyvT8pbrr8cK3w8CuQ==, tableContent=null), ArticleFig(id=1322161810250256619, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Fig.13, caption=
Relationship between maximum vertical subsidence of goaf roof and span of mine house, figureFileSmall=M8saYXukuMOnbJn0pgHPBw==, figureFileBig=N0Fkq5qdr41mFxu/Wi9d+Q==, tableContent=null), ArticleFig(id=1322161810321559788, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=图13, caption=
采空区顶板最大垂直沉降量与矿房跨度的关系, figureFileSmall=M8saYXukuMOnbJn0pgHPBw==, figureFileBig=N0Fkq5qdr41mFxu/Wi9d+Q==, tableContent=null), ArticleFig(id=1322161810397057261, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Fig.14, caption=
Plastic zone distribution nephograms of mining and filling with a span of 12 m, figureFileSmall=+GSYLFq+HS+kyJ3ApdRbpg==, figureFileBig=MujDloxnsuxXwR/8EaeWcQ==, tableContent=null), ArticleFig(id=1322161810468360430, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=图14, caption=
跨度为12 m时开采与充填塑性区分布云图, figureFileSmall=+GSYLFq+HS+kyJ3ApdRbpg==, figureFileBig=MujDloxnsuxXwR/8EaeWcQ==, tableContent=null), ArticleFig(id=1322161810535469295, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Fig.15, caption=
Plastic zone distribution nephograms of mining and filling with a span of 15 m, figureFileSmall=PpID1tN1derN44zZd68c+w==, figureFileBig=nGKoBwDqci+gQQmTsaGrXQ==, tableContent=null), ArticleFig(id=1322161810619355376, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=图15, caption=
跨度为15 m时开采与充填塑性区分布云图, figureFileSmall=PpID1tN1derN44zZd68c+w==, figureFileBig=nGKoBwDqci+gQQmTsaGrXQ==, tableContent=null), ArticleFig(id=1322161812284494065, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Fig.16, caption=
Plastic zone distribution nephograms of mining and filling with a span of 18 m, figureFileSmall=JMMOnfM1K+idd8iA7lW66Q==, figureFileBig=D2BStc5VVNSwNceCSG4xog==, tableContent=null), ArticleFig(id=1322161812372574450, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=图16, caption=
跨度为18 m时开采与充填塑性区分布云图, figureFileSmall=JMMOnfM1K+idd8iA7lW66Q==, figureFileBig=D2BStc5VVNSwNceCSG4xog==, tableContent=null), ArticleFig(id=1322161812460654835, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Fig.17, caption=
Distribution of monitoring points, figureFileSmall=z02Whhn7sQo0pkZPmPdNhQ==, figureFileBig=MLRB3fCAe2S2vlBeqLCO+w==, tableContent=null), ArticleFig(id=1322161812557123828, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=图17, caption=
监测点分布, figureFileSmall=z02Whhn7sQo0pkZPmPdNhQ==, figureFileBig=MLRB3fCAe2S2vlBeqLCO+w==, tableContent=null), ArticleFig(id=1322161812687147254, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Fig.18, caption=
Monitoring results of each section in one-step mining, figureFileSmall=vCkT15i1/K4mJ2e1U7DhSQ==, figureFileBig=+h+PVAbN54xyUyi/jek5dA==, tableContent=null), ArticleFig(id=1322161812758450423, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=图18, caption=
各个分段一步骤开采监测结果, figureFileSmall=vCkT15i1/K4mJ2e1U7DhSQ==, figureFileBig=+h+PVAbN54xyUyi/jek5dA==, tableContent=null), ArticleFig(id=1322161812875890936, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Fig.19, caption=
Monitoring results of each section in one-step filling, figureFileSmall=e4M7TCMJBixB0f/b7p+SPw==, figureFileBig=Q+ATvelF7HEXzuxQgH0BDg==, tableContent=null), ArticleFig(id=1322161812955582714, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=图19, caption=
各个分段一步骤充填监测结果, figureFileSmall=e4M7TCMJBixB0f/b7p+SPw==, figureFileBig=Q+ATvelF7HEXzuxQgH0BDg==, tableContent=null), ArticleFig(id=1322161813026885883, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Fig.20, caption=
Monitoring results of each section in two-step mining, figureFileSmall=NyoMcO0Zm1Nw4j8U72NTlQ==, figureFileBig=s6l+o2RWXeC++4E7/LIg3A==, tableContent=null), ArticleFig(id=1322161813102383356, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=图20, caption=
各个分段二步骤开采监测结果, figureFileSmall=NyoMcO0Zm1Nw4j8U72NTlQ==, figureFileBig=s6l+o2RWXeC++4E7/LIg3A==, tableContent=null), ArticleFig(id=1322161813194658046, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Fig.21, caption=
Monitoring results of each section in two-step filling, figureFileSmall=r8+F6NqCcu/+exLrRwaiYw==, figureFileBig=YLHekE2FhWbApw9nygHFIA==, tableContent=null), ArticleFig(id=1322161813286932735, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=图21, caption=
各个分段二步骤充填监测结果, figureFileSmall=r8+F6NqCcu/+exLrRwaiYw==, figureFileBig=YLHekE2FhWbApw9nygHFIA==, tableContent=null), ArticleFig(id=1322161813383401728, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Table 1, caption=
RMR classification results of ore and rock stability
, figureFileSmall=null, figureFileBig=null, tableContent=
| 岩性 | RMR值 | 岩体质量等级 | 岩体质量描述 |
|---|
| 铁矿石 | 57 | Ⅲ | 一般 |
| 花岗岩 | 72 | Ⅱ | 好 |
| 矽卡岩 | 62 | Ⅱ | 好 |
| 大理岩 | 63 | Ⅱ | 好 |
), ArticleFig(id=1322161813488259330, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=表1, caption=
矿岩 RMR 稳定性分类结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 岩性 | RMR值 | 岩体质量等级 | 岩体质量描述 |
|---|
| 铁矿石 | 57 | Ⅲ | 一般 |
| 花岗岩 | 72 | Ⅱ | 好 |
| 矽卡岩 | 62 | Ⅱ | 好 |
| 大理岩 | 63 | Ⅱ | 好 |
), ArticleFig(id=1322161813567951107, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Table 2, caption=
Physical and mechanical parameters of rock mass
, figureFileSmall=null, figureFileBig=null, tableContent=
| 岩性 | 体积模量/ GPa | 剪切模量/ GPa | 黏聚力/ kPa | 泊松比 | 内摩擦角/ (°) | 抗拉强度/ MPa | 密度/ (g·cm-3) |
|---|
| 铁矿石 | 8.73 | 6.28 | 5.32 | 0.21 | 38 | 5.0 | 4.00 |
| 矽卡岩 | 11.80 | 5.40 | 3.50 | 0.30 | 20 | 2.8 | 2.73 |
| 充填体 | 0.73 | 0.34 | 0.23 | 0.30 | 32 | 0.5 | 2.02 |
), ArticleFig(id=1322161813677003012, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=表2, caption=
岩体物理力学参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 岩性 | 体积模量/ GPa | 剪切模量/ GPa | 黏聚力/ kPa | 泊松比 | 内摩擦角/ (°) | 抗拉强度/ MPa | 密度/ (g·cm-3) |
|---|
| 铁矿石 | 8.73 | 6.28 | 5.32 | 0.21 | 38 | 5.0 | 4.00 |
| 矽卡岩 | 11.80 | 5.40 | 3.50 | 0.30 | 20 | 2.8 | 2.73 |
| 充填体 | 0.73 | 0.34 | 0.23 | 0.30 | 32 | 0.5 | 2.02 |
), ArticleFig(id=1322161813756694790, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Table 3, caption=
Roof deformation criterion of long-span stope
, figureFileSmall=null, figureFileBig=null, tableContent=
| 顶板垂直沉降量/mm | 顶板变形与稳定特征 |
|---|
| <20 | 对岩体稳定基本不构成影响 |
| 20~50 | 不需要支护 |
| 50~100 | 岩体存在稳定问题,需要支护 |
| >100 | 属于大变形问题,采场有垮塌的风险 |
), ArticleFig(id=1322161813819609351, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=表3, caption=
大跨度采场顶板变形判据
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| 顶板垂直沉降量/mm | 顶板变形与稳定特征 |
|---|
| <20 | 对岩体稳定基本不构成影响 |
| 20~50 | 不需要支护 |
| 50~100 | 岩体存在稳定问题,需要支护 |
| >100 | 属于大变形问题,采场有垮塌的风险 |
), ArticleFig(id=1322161813890912520, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=EN, label=Table 4, caption=
Evaluation of influence grade of ground deformation on buildings
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| 影响等级 | 倾斜率i/(mm/m) | 曲率k/(mm/m2) | 水平变形ε/(mm/m) | 对建(构)筑物的影响程度 |
|---|
| 1 | i<3 | k<0.2 | ε<2 | 轻微 |
| 2 | 3≤i<6 | 0.2≤k<0.4 | 2≤ε<4 | 小 |
| 3 | 6≤i<10 | 0.4≤k<0.6 | 4≤ε<6 | 中 |
| 4 | i≥10 | k≥0.6 | ε≥6 | 严重 |
), ArticleFig(id=1322161813983187209, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161795423391822, language=CN, label=表4, caption=
地面变形对建(构)筑物影响等级评定
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| 影响等级 | 倾斜率i/(mm/m) | 曲率k/(mm/m2) | 水平变形ε/(mm/m) | 对建(构)筑物的影响程度 |
|---|
| 1 | i<3 | k<0.2 | ε<2 | 轻微 |
| 2 | 3≤i<6 | 0.2≤k<0.4 | 2≤ε<4 | 小 |
| 3 | 6≤i<10 | 0.4≤k<0.6 | 4≤ε<6 | 中 |
| 4 | i≥10 | k≥0.6 | ε≥6 | 严重 |
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