Article(id=1322164622136824317, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322164546295410919, 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=1734364800000, receivedDateStr=2024-12-17, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793158210548, onlineDateStr=2026-10-28, pubDate=1764000000000, pubDateStr=2025-11-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793158210548, onlineIssueDateStr=2026-10-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793158210548, creator=13701087609, updateTime=1793158210548, updator=13701087609, issue=Issue{id=1322164546295410919, tenantId=1146029695717560320, journalId=1225396423026438145, year='2025', volume='45', issue='11', pageStart='1', pageEnd='284', issueExtLink='null', onlineDate='null', pubDate='1764000000000', pubDateStr='2025-11-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793158192465, creator='13701087609', updateTime=1793158905697, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322167537857573862, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322164546295410919, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322167537861768167, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322164546295410919, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=71, endPage=77, ext={EN=ArticleExt(id=1322164622321373694, articleId=1322164622136824317, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Strength Design of Bearing Layer and Capping Layer of Backfill on the Roof of Downward Drift, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In the downward drift filling mining method, the roof backfill is usually divided into a bearing layer and a capping layer, and their strength is a key factor to ensure roof stability during the drift mining process. Force analysis was carried out on the downward rectangular drift. Considering that both sides of the drift were backfill, the strengths of the bearing layer and capping layer of the drift backfill were designed respectively by combining the stress solution method for rectangular openings based on complex functions with the unconfined compressive deformation test and shear strength test of backfill. An on-site industrial application was carried out in a metal mine in Yunnan to verify the rationality of the designed strength. The results show that when the lateral pressure coefficient of the backfill is 0.29, and the height-width ratio of the rectangular roadway is set to 1.0, the tensile strength of the bearing layer is designed as σt=0.26 MPa and the compressive strength of the capping layer as σc=2.88 MPa with a safety factor of f=1.5. During the mining and filling process of the underground stope, no phenomena of lateral collapse of the backfill or roof caving are observed. The designed strength meets the requirements of on-site safe operation, and it is estimated to save the mine a filling cost of 5.58 million yuan per year.
, authors=Cong ZHENG
1, Dengpan QIAO
1, Gan LONG
1, Zibing LI
1, Yongming LI
2, Baidong LIAN
3, Tianyu YANG
1, authorsList=Cong ZHENG, Dengpan QIAO, Gan LONG, Zibing LI, Yongming LI, Baidong LIAN, Tianyu YANG, authorCompany=null, correspAuthors=Dengpan QIAO, 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=1322164630865170993, articleId=1322164622136824317, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=下向进路顶板充填体承载层与接顶层强度设计, columnId=1226462294490657775, journalTitle=矿业研究与开发, columnName=采矿与矿山充填, runingTitle=null, highlight=null, articleAbstract=
下向进路充填采矿法中,充填体顶板通常分为承载层与接顶层,其强度是保证进路回采过程中顶板稳定的关键因素。对下向矩形进路进行了受力分析,在考虑进路两侧均为充填体的情况下,结合复变函数矩形孔口应力求解方法与充填体单轴压缩变形试验、剪切强度试验,分别对进路充填体承载层与接顶层的强度进行了设计,并在云南某金属矿山开展现场工业应用以验证设计强度的合理性。结果表明,充填体侧压系数为0.29时,取矩形巷道宽高比为1.0,以安全系数f=1.5设计承载层抗拉强度σt=0.26 MPa、接顶层抗压强度σc=2.88 MPa,井下采场回采与充填过程中未出现充填体侧向垮塌与顶板冒落现象,设计强度能够满足现场安全作业要求,预计可为矿山节约充填成本558万元/a。
, authors=郑聪
1, 乔登攀
1, 龙赣
1, 李子彬
1, 李勇明
2, 廉柏栋
3, 杨天雨
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1.昆明理工大学 国土资源工程学院,云南 昆明 650093, bio={"content":"
郑聪(1997—),男,云南昭通人,硕士,主要从事现代采矿理论与技术研究。E-mail:zhengcong@stu.kust.edu.cn
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郑聪(1997—),男,云南昭通人,硕士,主要从事现代采矿理论与技术研究。E-mail:zhengcong@stu.kust.edu.cn
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1.昆明理工大学 国土资源工程学院,云南 昆明 650093, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322164631125217842, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, xref=1., ext=[AuthorCompanyExt(id=1322164631133606451, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, companyId=1322164631125217842, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1.Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322164632299622990, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, authorId=1322164632165405259, language=CN, stringName=李子彬, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2.Yunnan Phosphate Chemical Group Co., Ltd., Kunming, Yunnan 650600, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322164632580641363, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, authorId=1322164632383509072, language=CN, stringName=李勇明, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2.云南磷化集团有限公司,云南 昆明 650600, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322164631221686837, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, xref=2., ext=[AuthorCompanyExt(id=1322164631230075446, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, companyId=1322164631221686837, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3.Luanchuan Longyu Molybdenum Industry Co., Ltd., Luoyang, Henan 471500, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322164632823911000, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, authorId=1322164632660333141, language=CN, stringName=廉柏栋, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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3.栾川龙宇钼业有限公司,河南 洛阳市 471500, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322164631309767224, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, xref=3., ext=[AuthorCompanyExt(id=1322164631318155833, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, companyId=1322164631309767224, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1.Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322164634698764893, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, authorId=1322164632891019866, language=CN, stringName=杨天雨, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.昆明理工大学 国土资源工程学院,云南 昆明 650093, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322164631125217842, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, xref=1., ext=[AuthorCompanyExt(id=1322164631133606451, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, companyId=1322164631125217842, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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Mechanical model of rectangular roadway, figureFileSmall=PVNY1mvOY+SuKjmOGdR74w==, figureFileBig=CK/E6FJjN583JGoRX034cQ==, tableContent=null), ArticleFig(id=1322164635734757993, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=CN, label=图1, caption=
矩形巷道力学模型, figureFileSmall=PVNY1mvOY+SuKjmOGdR74w==, figureFileBig=CK/E6FJjN583JGoRX034cQ==, tableContent=null), ArticleFig(id=1322164635923501674, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=EN, label=Fig.2, caption=
Mining structure of downward rectangular drift, figureFileSmall=Ho/U9svtOOREh2fZw0NEGQ==, figureFileBig=WR8hyDosvcmat/Dw9rfpjw==, tableContent=null), ArticleFig(id=1322164636036747883, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=CN, label=图2, caption=
下向矩形进路回采结构, figureFileSmall=Ho/U9svtOOREh2fZw0NEGQ==, figureFileBig=WR8hyDosvcmat/Dw9rfpjw==, tableContent=null), ArticleFig(id=1322164636124828268, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=EN, label=Fig.3, caption=
Surrounding rock conditions on both sides of drift excavation, figureFileSmall=IK/4W/8G/5oB0fg6xOSwzg==, figureFileBig=SZsaBk5IEDvzuHgaOVFaBw==, tableContent=null), ArticleFig(id=1322164636233880173, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=CN, label=图3, caption=
进路开挖两侧围岩情况, figureFileSmall=IK/4W/8G/5oB0fg6xOSwzg==, figureFileBig=SZsaBk5IEDvzuHgaOVFaBw==, tableContent=null), ArticleFig(id=1322164636414235246, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=EN, label=Fig.4, caption=
Particle size distribution curve of tailings, figureFileSmall=ZuvZ267v+g7/w7fDIsL74Q==, figureFileBig=nU6QZQw5kzk/j45Y6gd6NQ==, tableContent=null), ArticleFig(id=1322164636477149807, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=CN, label=图4, caption=
尾砂粒径分布曲线, figureFileSmall=ZuvZ267v+g7/w7fDIsL74Q==, figureFileBig=nU6QZQw5kzk/j45Y6gd6NQ==, tableContent=null), ArticleFig(id=1322164636561035888, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=EN, label=Fig.5, caption=
Preparation process of specimens for backfill, figureFileSmall=0OsIFaOU7KoZqIY7WaIJ7w==, figureFileBig=eFFm+mSuzEsjNOfRCASFJg==, tableContent=null), ArticleFig(id=1322164636623950449, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=CN, label=图5, caption=
充填体试件制备流程, figureFileSmall=0OsIFaOU7KoZqIY7WaIJ7w==, figureFileBig=eFFm+mSuzEsjNOfRCASFJg==, tableContent=null), ArticleFig(id=1322164636712030834, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=EN, label=Fig.6, caption=
Loading test system, figureFileSmall=KI8QEitTmbzhuQtoKZ6j/w==, figureFileBig=mErcAoZQ4rpoz5pucSevyw==, tableContent=null), ArticleFig(id=1322164636791722611, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=CN, label=图6, caption=
加载测试系统, figureFileSmall=KI8QEitTmbzhuQtoKZ6j/w==, figureFileBig=mErcAoZQ4rpoz5pucSevyw==, tableContent=null), ArticleFig(id=1322164636863025780, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=EN, label=Fig.7, caption=
Shear strength tests of backfill, figureFileSmall=eBGb1N2xyfONM23F53/5uA==, figureFileBig=sxiFAmCo8uG0uAMa9rTlRw==, tableContent=null), ArticleFig(id=1322164636951106165, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=CN, label=图7, caption=
充填体剪切强度试验, figureFileSmall=eBGb1N2xyfONM23F53/5uA==, figureFileBig=sxiFAmCo8uG0uAMa9rTlRw==, tableContent=null), ArticleFig(id=1322164637018215030, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=EN, label=Fig.8, caption=
Stope structure, figureFileSmall=jQww0rroLe0UbXTOL86glQ==, figureFileBig=bwl/+hWNMSLvKsj8TWxYUw==, tableContent=null), ArticleFig(id=1322164637093712503, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=CN, label=图8, caption=
采场结构, figureFileSmall=jQww0rroLe0UbXTOL86glQ==, figureFileBig=bwl/+hWNMSLvKsj8TWxYUw==, tableContent=null), ArticleFig(id=1322164637165015672, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=EN, label=Fig.9, caption=
Stress distribution of rectangular roadway section, figureFileSmall=ZjIJPlXWVYgrxUEZXp0jeA==, figureFileBig=jXqqSExHSzcbFhd/hrIbXQ==, tableContent=null), ArticleFig(id=1322164637248901753, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=CN, label=图9, caption=
矩形巷道断面应力分布, figureFileSmall=ZjIJPlXWVYgrxUEZXp0jeA==, figureFileBig=jXqqSExHSzcbFhd/hrIbXQ==, tableContent=null), ArticleFig(id=1322164637316010618, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=EN, label=Fig.10, caption=
Field industrial application, figureFileSmall=8aIYJO8kmLKL6uk7ChjMEA==, figureFileBig=wzA9U4O7QK7P3gj3bLUfNQ==, tableContent=null), ArticleFig(id=1322164638993732219, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=CN, label=图10, caption=
现场工业应用, figureFileSmall=8aIYJO8kmLKL6uk7ChjMEA==, figureFileBig=wzA9U4O7QK7P3gj3bLUfNQ==, tableContent=null), ArticleFig(id=1322164639069229692, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=EN, label=Table 1, caption=
Mechanical parameters of backfill
, figureFileSmall=null, figureFileBig=null, tableContent=
| 质量浓度/% | 灰砂比 | 弹性模量/GPa | 泊松比 | 黏聚力/MPa | 内摩擦角/(°) |
|---|
| 76 | 1∶4 | 0.67 | 0.33 | 1.50 | 45 |
), ArticleFig(id=1322164639148921469, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=CN, label=表1, caption=
充填体力学参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 质量浓度/% | 灰砂比 | 弹性模量/GPa | 泊松比 | 黏聚力/MPa | 内摩擦角/(°) |
|---|
| 76 | 1∶4 | 0.67 | 0.33 | 1.50 | 45 |
), ArticleFig(id=1322164639245390462, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=EN, label=Table 2, caption=
Calculation of mechanical parameters under different backfill conditions
, figureFileSmall=null, figureFileBig=null, tableContent=
| 充填体状态 | λ0 | α |
|---|
| 静止状态 | 1-sinφ | 0 |
| 主动状态 | (1-sinφ)/(1+sinφ) | (φ/2)-45° |
| 被动状态 | (1+sinφ)/(1-sinφ) | (φ/2)+45° |
), ArticleFig(id=1322164639358636671, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=CN, label=表2, caption=
不同充填体状态下力学参数计算
, figureFileSmall=null, figureFileBig=null, tableContent=
| 充填体状态 | λ0 | α |
|---|
| 静止状态 | 1-sinφ | 0 |
| 主动状态 | (1-sinφ)/(1+sinφ) | (φ/2)-45° |
| 被动状态 | (1+sinφ)/(1-sinφ) | (φ/2)+45° |
), ArticleFig(id=1322164639446717056, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=EN, label=Table 3, caption=
Calculation result of lateral pressure coefficient of backfill
, figureFileSmall=null, figureFileBig=null, tableContent=
| 灰砂比 | 内摩擦角φ/(°) | 侧压系数λ |
|---|
| 1∶4 | 45 | 0.29 |
), ArticleFig(id=1322164639547380353, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=CN, label=表3, caption=
充填体侧压系数计算结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 灰砂比 | 内摩擦角φ/(°) | 侧压系数λ |
|---|
| 1∶4 | 45 | 0.29 |
), ArticleFig(id=1322164639631266434, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=EN, label=Table 4, caption=
Test stope parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
| 回采进路宽度2a/m | 回采进路高度2b/m | 承载层抗拉强度σt/MPa | 接顶层抗压强度σc/MPa |
|---|
| 3.0 | 3.0 | 0.26 | 2.88 |
), ArticleFig(id=1322164639706763907, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622136824317, language=CN, label=表4, caption=
试验采场参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 回采进路宽度2a/m | 回采进路高度2b/m | 承载层抗拉强度σt/MPa | 接顶层抗压强度σc/MPa |
|---|
| 3.0 | 3.0 | 0.26 | 2.88 |
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