Article(id=1322595101554102589, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322595047657296718, 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=1720454400000, receivedDateStr=2024-07-09, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793260844839, onlineDateStr=2026-10-29, pubDate=1742832000000, pubDateStr=2025-03-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793260844839, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793260844839, creator=13701087609, updateTime=1793260844839, updator=13701087609, issue=Issue{id=1322595047657296718, tenantId=1146029695717560320, journalId=1225396423026438145, year='2025', volume='45', issue='3', pageStart='1', pageEnd='288', issueExtLink='null', onlineDate='null', pubDate='1742832000000', pubDateStr='2025-03-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793260831989, creator='13701087609', updateTime=1793260831989, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=1, endPage=9, ext={EN=ArticleExt(id=1322595101734457662, articleId=1322595101554102589, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Study on Large-Scale Mining Parallel Filling and Continuous Ore Drawing Technology in Deep Hard Rock Underground Mine, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Large-scale continuous mining of deep ore bodies is the frontier research direction of deep mining in the future. Aiming at the problem of mutual restriction between the traditional intermittent mining operation mode and the deep intelligent and efficient mining of deep hard rock deposits, a continuous mining operation mode of parallel mining and filling was proposed, which used flexible isolation layer to realize the parallel filling and continuous mining process. The strength distribution of filling body in parallel filling process of high-stage large stope was analyzed by means of theoretical calculation formula and FLAC3D numerical software, and the strength requirements of filling body at different heights of high-stage stope were determined. PFC discrete element software was used to analyze the flow law of ore-filling granular and the deformation damage characteristics of isolation layer in parallel filling and continuous ore drawing. The results show that in the parallel filling and continuous ore drawing process, the 28 d consolidation bearing strength of the filling body at the top and bottom of the stope should be greater than 8 MPa. With the filling and ore drawing, the maximum load of the isolation layer is 57 kPa when it is close to the funnel mouth of the ore drawing. At this time, the isolation layer has obvious concave deformation, and the damage near the pillar area on both sides increases, resulting in obvious tensile and compressive damage. The study can provide reference for the continuous operation of deep ore body mining.
, authors=Yongchao GONG
1, 2, Renze OU
1, 2, Weixing LIN
1, 2, Jintao LU
1, 2, Dunxia LIAO
1, 2, Juli LIANG
1, 2, Yuding WANG
1, 2, authorsList=Yongchao GONG, Renze OU, Weixing LIN, Jintao LU, Dunxia LIAO, Juli LIANG, Yuding WANG, 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=1322595105186369875, articleId=1322595101554102589, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=深部硬岩地下矿山大规模回采并行充填及连续出矿工艺研究, 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=
深部矿体规模化连续开采是未来矿山开采“深地化”的前沿研究方向。针对深部硬岩矿床传统的间断式采矿作业模式与深部智能化高效开采形成相互制约的问题,提出一种并行式采出充连续采矿作业模式,利用柔性隔离层实现采充并行的充填与连续出矿工艺流程。借助理论计算并结合FLAC3D数值计算软件分析了高阶段大采场并行充填工艺中的充填体强度分布,确定了高阶段采场不同高度的充填体强度需求。利用PFC离散元软件分析并行充填与连续出矿中“矿-充”散体流动规律及隔离层变形损伤特性。结果表明:并行充填与连续出矿工艺中,采场顶部及底部充填体28 d固结承压强度应大于8 MPa,随着充填和放矿的进行,在接近放矿漏斗口时,隔离层最大载荷为57 kPa,此时隔离层出现明显的下凹变形,靠近两侧矿柱区域损伤增加,产生明显的拉压破坏。研究可为深部矿体开采连续作业提供参考。
, authors=龚永超
1, 2, 欧任泽
1, 2, 林卫星
1, 2, 陆锦涛
1, 2, 廖敦霞
1, 2, 梁巨理
1, 2, 王玉丁
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1.Changsha Institute of Mining Research Co., Ltd., Changsha, Hunan 410012, China
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1.长沙矿山研究院有限责任公司,湖南 长沙 410012
2.金属矿山安全技术国家重点实验室,湖南 长沙 410012, bio={"content":"
龚永超(1989—),男,湖南娄底人,硕士,高级工程师,主要从事金属矿山采矿方法及工艺研究工作。E-mail:1145233051@qq.com
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龚永超(1989—),男,湖南娄底人,硕士,高级工程师,主要从事金属矿山采矿方法及工艺研究工作。E-mail:1145233051@qq.com
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1.Changsha Institute of Mining Research Co., Ltd., Changsha, Hunan 410012, China
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1.Changsha Institute of Mining Research Co., Ltd., Changsha, Hunan 410012, China
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1.长沙矿山研究院有限责任公司,湖南 长沙 410012
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1.Changsha Institute of Mining Research Co., Ltd., Changsha, Hunan 410012, China
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1.长沙矿山研究院有限责任公司,湖南 长沙 410012
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1.Changsha Institute of Mining Research Co., Ltd., Changsha, Hunan 410012, China
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并行采出充作业连续采矿典型方案, figureFileSmall=VVq3effSzz/TPewTv7FDbg==, figureFileBig=Y+01YXABdetCUStJgywxHw==, tableContent=null), ArticleFig(id=1322595646062842516, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595101554102589, language=EN, label=Fig.2, caption=
Schematic diagram of concurrent backfilling and continuous ore extraction technique, figureFileSmall=qa/uwQ4ywZcR5eXStxbOvA==, figureFileBig=moEgUDu5lTYl7QCPoYtnmQ==, tableContent=null), ArticleFig(id=1322595646511633045, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595101554102589, language=CN, label=图2, caption=
并行充填与连续出矿工艺, figureFileSmall=qa/uwQ4ywZcR5eXStxbOvA==, figureFileBig=moEgUDu5lTYl7QCPoYtnmQ==, tableContent=null), ArticleFig(id=1322595648541676182, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595101554102589, language=EN, label=Fig.3, caption=
Numerical calculation model for backfill strength, figureFileSmall=shkPcWizfoH2IS4WjRPDiw==, figureFileBig=W2tGVYxWdePvY1M9XeRTQQ==, tableContent=null), ArticleFig(id=1322595648973689495, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595101554102589, language=CN, label=图3, caption=
充填体强度数值计算模型, figureFileSmall=shkPcWizfoH2IS4WjRPDiw==, figureFileBig=W2tGVYxWdePvY1M9XeRTQQ==, tableContent=null), ArticleFig(id=1322595649040798360, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595101554102589, language=EN, label=Fig.4, caption=
Results of numerical calculation of backfill strength, figureFileSmall=9yDcOQDpAFC6P0UyHGLzOg==, figureFileBig=OP4xGcV+aWQm9fQt/ps55Q==, tableContent=null), ArticleFig(id=1322595649393119898, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595101554102589, language=CN, label=图4, caption=
充填体强度数值计算结果, figureFileSmall=9yDcOQDpAFC6P0UyHGLzOg==, figureFileBig=OP4xGcV+aWQm9fQt/ps55Q==, tableContent=null), ArticleFig(id=1322595649913213596, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595101554102589, language=EN, label=Fig.5, caption=
Overall model, figureFileSmall=tdVcR5pq0Mj+W8idO+ByMg==, figureFileBig=tqtpmEs+lsg2uUOSUq31+g==, tableContent=null), ArticleFig(id=1322595650651411102, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595101554102589, language=CN, label=图5, caption=
整体模型, figureFileSmall=tdVcR5pq0Mj+W8idO+ByMg==, figureFileBig=tqtpmEs+lsg2uUOSUq31+g==, tableContent=null), ArticleFig(id=1322595651075035808, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595101554102589, language=EN, label=Fig.6, caption=
Parallel backfilling and continuous ore extraction patterns, figureFileSmall=xaCAfCxdTPFR8/WUINSiPQ==, figureFileBig=2wE6/O0u9Z83EhsU8iqAxA==, tableContent=null), ArticleFig(id=1322595651502854817, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595101554102589, language=CN, label=图6, caption=
并行充填与连续出矿过程, figureFileSmall=xaCAfCxdTPFR8/WUINSiPQ==, figureFileBig=2wE6/O0u9Z83EhsU8iqAxA==, tableContent=null), ArticleFig(id=1322595652853420706, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595101554102589, language=EN, label=Fig.7, caption=
Monitoring displacement during parallel backfilling and continuous ore extraction, figureFileSmall=zv8v4L7pwkd+LVGGofZe7g==, figureFileBig=O/PlffbU0hnVeQRAvxE3ow==, tableContent=null), ArticleFig(id=1322595653268656803, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595101554102589, language=CN, label=图7, caption=
并行充填与连续出矿位移监测和应力监测, figureFileSmall=zv8v4L7pwkd+LVGGofZe7g==, figureFileBig=O/PlffbU0hnVeQRAvxE3ow==, tableContent=null), ArticleFig(id=1322595653579035300, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595101554102589, language=EN, label=Fig.8, caption=
Analysis of damage laws, figureFileSmall=p16j14hctvZ66sIp2DkSoA==, figureFileBig=rtKf1OH094fkXgN1kjPWzQ==, tableContent=null), ArticleFig(id=1322595653692281509, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595101554102589, language=CN, label=图8, caption=
损伤规律分析, figureFileSmall=p16j14hctvZ66sIp2DkSoA==, figureFileBig=rtKf1OH094fkXgN1kjPWzQ==, tableContent=null), ArticleFig(id=1322595654048797350, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595101554102589, language=EN, label=Table 1, caption=
Results of different methods to calculate the vertical stress in the backfill
, figureFileSmall=null, figureFileBig=null, tableContent=
| 距充填体顶面的高度H/m | Thomas模型法k=2.0 | 安庆铜矿经验公式法k=2.0 | 覆岩承重计算法k=1.5 | 蔡嗣经经验公式法k=1.2 |
|---|
| 20 | 0.62 | 0.65 | 0.486 | 1.05 |
| 40 | 1.06 | 1.15 | 0.972 | 1.66 |
| 60 | 1.40 | 1.56 | 1.458 | 2.07 |
| 80 | 1.65 | 2.27 | 1.944 | 2.40 |
| 100 | 1.86 | 2.60 | 2.43 | 2.68 |
| 120 | 2.03 | 2.88 | 2.916 | 2.92 |
| 140 | 2.17 | 3.12 | 3.402 | 3.24 |
| 160 | 2.29 | 3.33 | 3.888 | 3.54 |
| 180 | 2.39 | 3.51 | 4.374 | 3.83 |
| 200 | 2.48 | 3.67 | 4.860 | 4.10 |
), ArticleFig(id=1322595654409507495, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595101554102589, language=CN, label=表1, caption=
不同方法计算充填体内垂直应力的结果汇总
, figureFileSmall=null, figureFileBig=null, tableContent=
| 距充填体顶面的高度H/m | Thomas模型法k=2.0 | 安庆铜矿经验公式法k=2.0 | 覆岩承重计算法k=1.5 | 蔡嗣经经验公式法k=1.2 |
|---|
| 20 | 0.62 | 0.65 | 0.486 | 1.05 |
| 40 | 1.06 | 1.15 | 0.972 | 1.66 |
| 60 | 1.40 | 1.56 | 1.458 | 2.07 |
| 80 | 1.65 | 2.27 | 1.944 | 2.40 |
| 100 | 1.86 | 2.60 | 2.43 | 2.68 |
| 120 | 2.03 | 2.88 | 2.916 | 2.92 |
| 140 | 2.17 | 3.12 | 3.402 | 3.24 |
| 160 | 2.29 | 3.33 | 3.888 | 3.54 |
| 180 | 2.39 | 3.51 | 4.374 | 3.83 |
| 200 | 2.48 | 3.67 | 4.860 | 4.10 |
), ArticleFig(id=1322595654476616360, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595101554102589, language=EN, label=Table 2, caption=
Physical and mechanical parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
| 岩体名称 | 密度/(kg/cm3) | 弹性模量/GPa | 泊松比μ | 黏聚力c/MPa | 内摩擦角/(°) | 抗拉强度/MPa |
|---|
| 矿体 | 2.84 | 17.88 | 0.21 | 3.07 | 37.42 | 0.25 |
| 围岩 | 2.70 | 15.07 | 0.23 | 3.61 | 37.31 | 0.93 |
| 充填体 | 1.86 | 16.60 | 0.19 | 0.60 | 28.80 | 0.56 |
), ArticleFig(id=1322595654841520809, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595101554102589, language=CN, label=表2, caption=
岩体物理力学参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 岩体名称 | 密度/(kg/cm3) | 弹性模量/GPa | 泊松比μ | 黏聚力c/MPa | 内摩擦角/(°) | 抗拉强度/MPa |
|---|
| 矿体 | 2.84 | 17.88 | 0.21 | 3.07 | 37.42 | 0.25 |
| 围岩 | 2.70 | 15.07 | 0.23 | 3.61 | 37.31 | 0.93 |
| 充填体 | 1.86 | 16.60 | 0.19 | 0.60 | 28.80 | 0.56 |
), ArticleFig(id=1322595655252562602, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595101554102589, language=EN, label=Table 3, caption=
Design values of backfill strength at various heights in stope
, figureFileSmall=null, figureFileBig=null, tableContent=
| 距充填体顶面的高度H/m | 充填体强度推荐值R28/MPa |
|---|
| 0~20 | ≥8.0 |
| 20~60 | ≥3.5 |
| 60~100 | ≥4.5 |
| 100~140 | ≥5.5 |
| 140~160 | ≥6.0 |
| 160~180 | ≥7.0 |
| 180~200 | ≥8.0 |
), ArticleFig(id=1322595655743296171, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595101554102589, language=CN, label=表3, caption=
采场不同高度充填体强度设计值
, figureFileSmall=null, figureFileBig=null, tableContent=
| 距充填体顶面的高度H/m | 充填体强度推荐值R28/MPa |
|---|
| 0~20 | ≥8.0 |
| 20~60 | ≥3.5 |
| 60~100 | ≥4.5 |
| 100~140 | ≥5.5 |
| 140~160 | ≥6.0 |
| 160~180 | ≥7.0 |
| 180~200 | ≥8.0 |
), ArticleFig(id=1322595657374880429, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595101554102589, language=EN, label=Table 4, caption=
Microscopic parameters of granular physics
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数类型 | 细观参数 | 数值 |
|---|
| 颗粒微观力学参数 | 颗粒密度 ρ/(kg·m–3) | 2 800(矿石)、2 500(充填体、隔离层) |
| 最小颗粒半径Rmin/m | 0.6 |
| 最大颗粒半径Rmax/m | 0.75 |
| 颗粒接触模量Ec/GPa | 21 |
| 颗粒刚度比kn/ks | 2.1 |
| 平行黏结微观力学参数 | 平行黏结模量Ec/GPa | 21 |
平行黏结法向强度 /MPa | 180 |
平行黏结抗剪强度 /MPa | 158 |
), ArticleFig(id=1322595657504903854, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322595101554102589, language=CN, label=表4, caption=
颗粒物理力学微观参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数类型 | 细观参数 | 数值 |
|---|
| 颗粒微观力学参数 | 颗粒密度 ρ/(kg·m–3) | 2 800(矿石)、2 500(充填体、隔离层) |
| 最小颗粒半径Rmin/m | 0.6 |
| 最大颗粒半径Rmax/m | 0.75 |
| 颗粒接触模量Ec/GPa | 21 |
| 颗粒刚度比kn/ks | 2.1 |
| 平行黏结微观力学参数 | 平行黏结模量Ec/GPa | 21 |
平行黏结法向强度 /MPa | 180 |
平行黏结抗剪强度 /MPa | 158 |
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