Article(id=1240648782455558281, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1240648781595725960, articleNumber=null, orderNo=null, doi=10.3969/j.issn.0253-6099.2024.05.004, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1714924800000, receivedDateStr=2024-05-06, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1773723319877, onlineDateStr=2026-03-17, pubDate=1727712000000, pubDateStr=2024-10-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773723319877, onlineIssueDateStr=2026-03-17, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773723319877, creator=13701087609, updateTime=1773723319877, updator=13701087609, issue=Issue{id=1240648781595725960, tenantId=1146029695717560320, journalId=1235980550691926019, year='2024', volume='44', issue='5', pageStart='1', pageEnd='184', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773723319672, creator=13701087609, updateTime=1773824608750, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241073618831078097, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1240648781595725960, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241073618831078098, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1240648781595725960, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=17, endPage=21, ext={EN=ArticleExt(id=1240648782774325389, articleId=1240648782455558281, tenantId=1146029695717560320, journalId=1235980550691926019, language=EN, title=Analysis of Goaf Stability Before and After Backfill, columnId=1236276106018484431, journalTitle=Mining and Metallurgical Engineering, columnName=MINING, runingTitle=null, highlight=null, articleAbstract=
The stability of goafs in a mine was analyzed. Firstly, the current situation of the goafs was investigated in detail to clarify the distribution and volume of goafs. Secondly, the stability variation of goafs before and after backfill was evaluated based on the FLAC3D simulation results. It is found that there are five main goafs in the mine, which are distributed in the middle section of 700-860 m, with total volume of around 404 500 m3. Currently, the roof of goaf is unstable, posing a greater potential risk of collapse. The rock mass that is not connected together from 1# to 4# goaf has concentrated force on it and a plastic zone penetrates through, possibly causing large-scale instability. After the goafs in the middle section of 700-820 m are gradually backfilled, the risk of goaf instability can be gradually eliminated, and production activities in the middle section below 700 m won't be affected. It is recommended that 1#-4# goafs should be preferably backfilled to reduce the risk of roof collapse and penetration.
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对某矿山采空区稳定性进行了分析。首先对采空区现状进行了详细调查,明确其分布状态及体积;其次,基于FLAC3D模拟结果评价采空区现状及充填后的稳定性变化规律。结果表明,矿山主要存在5个采空区,分布在700~860 m中段,采空区总体积约40.45×104 m3;当前采空区顶板不稳定,存在较大垮落风险,1#~4#采空区之间未贯通的岩体受力集中,塑性区贯通,有可能产生大规模失稳破坏;对700~820 m中段之间采空区逐步充填后,采空区失稳风险逐渐消除,不会影响700 m以下中段生产活动。建议优先对1#~4#采空区进行充填处理,降低采空区垮塌和贯通的风险。
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, authorsList=刘畅, 郭泽洋, 江飞飞, 简锡明, 郭晓强, 郭豫宁, 黄敏, 黄明发)}, authors=[Author(id=1240648786498867415, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=liuchangcimr@163.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1240648786591142108, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, authorId=1240648786498867415, language=EN, stringName=Chang LIU, firstName=Chang, middleName=null, lastName=LIU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1.Changsha Institute of Mining Research Co., Ltd., Changsha 410012, Hunan, China
2.State Key Laboratory of Safety Technology for Metal Mines, Changsha 410012, Hunan, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1240648786679222498, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, authorId=1240648786498867415, language=CN, stringName=刘畅, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
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":"
刘畅(1987—),男,湖南株洲人,博士,高级工程师,主要从事矿山岩石力学方面的研究工作。E-mail:liuchangcimr@163.com
"}, bioImg=null, bioContent=
刘畅(1987—),男,湖南株洲人,博士,高级工程师,主要从事矿山岩石力学方面的研究工作。E-mail:liuchangcimr@163.com
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1.长沙矿山研究院有限责任公司,湖南 长沙 410012)]), AuthorCompany(id=1240648785987162300, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, xref=2., ext=[AuthorCompanyExt(id=1240648785995550909, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, companyId=1240648785987162300, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.State Key Laboratory of Safety Technology for Metal Mines, Changsha 410012, Hunan, China), AuthorCompanyExt(id=1240648785999745214, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, companyId=1240648785987162300, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1, 2, address=
1.Changsha Institute of Mining Research Co., Ltd., Changsha 410012, Hunan, China
2.State Key Laboratory of Safety Technology for Metal Mines, Changsha 410012, Hunan, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1240648786960240887, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, authorId=1240648786784080106, language=CN, stringName=郭泽洋, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
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=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1240648784628207797, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, xref=1., ext=[AuthorCompanyExt(id=1240648784636596406, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, companyId=1240648784628207797, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.Changsha Institute of Mining Research Co., Ltd., Changsha 410012, Hunan, China), AuthorCompanyExt(id=1240648784649179319, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, companyId=1240648784628207797, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.长沙矿山研究院有限责任公司,湖南 长沙 410012)]), AuthorCompany(id=1240648785987162300, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, xref=2., ext=[AuthorCompanyExt(id=1240648785995550909, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, companyId=1240648785987162300, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.State Key Laboratory of Safety Technology for Metal Mines, Changsha 410012, Hunan, China), AuthorCompanyExt(id=1240648785999745214, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, companyId=1240648785987162300, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.金属矿山安全技术国家重点实验室,湖南 长沙 410012)])]), Author(id=1240648787044126970, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=ffjiang@whrsm.ac.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1240648787132207361, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, authorId=1240648787044126970, language=EN, stringName=Feifei JIANG, firstName=Feifei, middleName=null, lastName=JIANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, 4, address=
3.Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, Hubei, China
4.State Key Laboratory of Geomechanics and Geotechnical Engineering, Wuhan 430071, Hubei, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1240648787216093446, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, authorId=1240648787044126970, language=CN, stringName=江飞飞, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, 4, address=
3.中国科学院武汉岩土力学研究所,湖北 武汉 430071
4.岩土力学与工程国家重点实验室,湖北 武汉 430071, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1240648786100408513, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, xref=3., ext=[AuthorCompanyExt(id=1240648786112991427, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, companyId=1240648786100408513, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, Hubei, China), AuthorCompanyExt(id=1240648786121380036, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, companyId=1240648786100408513, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.中国科学院武汉岩土力学研究所,湖北 武汉 430071)]), AuthorCompany(id=1240648786217849032, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, xref=4., ext=[AuthorCompanyExt(id=1240648786226237641, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, companyId=1240648786217849032, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
4.State Key Laboratory of Geomechanics and Geotechnical Engineering, Wuhan 430071, Hubei, China), AuthorCompanyExt(id=1240648786230431946, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, companyId=1240648786217849032, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
4.岩土力学与工程国家重点实验室,湖北 武汉 430071)])]), Author(id=1240648787299979531, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1240648787413225745, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, authorId=1240648787299979531, language=EN, stringName=Ximing JIAN, firstName=Ximing, middleName=null, lastName=JIAN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
5, address=
5.Zijin Mining Group Co., Ltd., Shanghang 364200, Fujian, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1240648787513889047, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, authorId=1240648787299979531, language=CN, stringName=简锡明, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
5, address=
5.紫金矿业集团股份有限公司,福建 上杭 364200, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1240648786301735117, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, xref=5., ext=[AuthorCompanyExt(id=1240648786310123726, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, companyId=1240648786301735117, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
5.Zijin Mining Group Co., Ltd., Shanghang 364200, Fujian, China), AuthorCompanyExt(id=1240648786314318031, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, companyId=1240648786301735117, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
5.紫金矿业集团股份有限公司,福建 上杭 364200)])]), Author(id=1240648787593580828, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, orderNo=4, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1240648787744575777, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, authorId=1240648787593580828, language=EN, stringName=Xiaoqiang GUO, firstName=Xiaoqiang, middleName=null, lastName=GUO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
5, address=
5.Zijin Mining Group Co., Ltd., Shanghang 364200, Fujian, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1240648787836850473, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, authorId=1240648787593580828, language=CN, stringName=郭晓强, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
5, address=
5.紫金矿业集团股份有限公司,福建 上杭 364200, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1240648786301735117, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, xref=5., ext=[AuthorCompanyExt(id=1240648786310123726, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, companyId=1240648786301735117, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
5.Zijin Mining Group Co., Ltd., Shanghang 364200, Fujian, China), AuthorCompanyExt(id=1240648786314318031, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, companyId=1240648786301735117, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
5.紫金矿业集团股份有限公司,福建 上杭 364200)])]), Author(id=1240648787937513778, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, orderNo=5, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1240648788075925820, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, authorId=1240648787937513778, language=EN, stringName=Yuning GUO, firstName=Yuning, middleName=null, lastName=GUO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1.Changsha Institute of Mining Research Co., Ltd., Changsha 410012, Hunan, China
2.State Key Laboratory of Safety Technology for Metal Mines, Changsha 410012, Hunan, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1240648788176589121, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, authorId=1240648787937513778, language=CN, stringName=郭豫宁, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
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=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1240648784628207797, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, xref=1., ext=[AuthorCompanyExt(id=1240648784636596406, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, companyId=1240648784628207797, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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5.Zijin Mining Group Co., Ltd., Shanghang 364200, Fujian, China
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5.紫金矿业集团股份有限公司,福建 上杭 364200
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5.Zijin Mining Group Co., Ltd., Shanghang 364200, Fujian, China
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5.紫金矿业集团股份有限公司,福建 上杭 364200
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6.紫金(长沙)工程技术有限公司,湖南 长沙 410000)])])], keywords=[Keyword(id=1240648788872843643, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, language=EN, orderNo=1, keyword=goaf), Keyword(id=1240648788960924036, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, language=EN, orderNo=2, keyword=goaf stability), Keyword(id=1240648790340850064, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, language=EN, orderNo=3, keyword=numerical simulation), Keyword(id=1240648790416347546, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, language=EN, orderNo=4, keyword=backfill), Keyword(id=1240648790500233634, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, language=EN, orderNo=5, keyword=underground mining), Keyword(id=1240648790613479853, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, language=CN, orderNo=1, keyword=采空区), Keyword(id=1240648790714143154, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, language=CN, orderNo=2, keyword=采空区稳定性), Keyword(id=1240648790823195068, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, language=CN, orderNo=3, keyword=数值模拟), Keyword(id=1240648790953218503, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, language=CN, orderNo=4, keyword=充填), Keyword(id=1240648791062270415, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, language=CN, orderNo=5, keyword=地下开采)], refs=[Reference(id=1240648794988139168, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648782455558281, doi=null, pmid=null, pmcid=null, year=2022, volume=null, issue=6, pageStart=40, pageEnd=45, url=null, language=null, rfNumber=[1], rfOrder=0, authorNames=谢伟, 倪彬, 李乾龙, journalName=金属矿山, refType=null, unstructuredReference=谢伟, 倪彬, 李乾龙, 等. 基于Mathews图解法的采空区稳定性分析[J].
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有色金属工程,
2023,
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三维数值模拟模型(a)围岩模型;(b)采空区模型
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采空区拉应力分布整体云图(a)采空区现状;(b)740 m中段充填结束;(c)780 m中段充填结束;(d)820 m中段充填结束
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采空区压应力分布整体云图(a)采空区现状;(b)740 m中段充填结束;(c)780 m中段充填结束;(d)820 m中段充填结束
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采空区位移分布整体云图(a)采空区现状;(b)740 m中段充填结束;(c)780 m中段充填结束;(d)820 m中段充填结束
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采空区塑性区分布整体云图(a)采空区现状;(b)740 m中段充填结束;(c)780 m中段充填结束;(d)820 m中段充填结束
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| 采空区标号 | 位置 | 跨度/m | 长度/m | 采高/m | 暴露面积/m2 | 采空区体积/m3 |
|---|
| 1# | 700~740 m中段 | 43.88 | 72.62 | 30.28 | 3 871.63 | 53 306 |
| 2# | 700~780 m中段 | 34.83 | 89.51 | 68.50 | 6 878.53 | 190 739 |
| 3# | 740~820 m中段 | 14.66 | 21.39 | 40.21 | 915.47 | 6 267 |
| 4# | 740~820 m中段 | 35.61 | 40.08 | 67.30 | 3 051.71 | 77 756 |
| 5# | 820 m以上中段 | 46.61 | 84.52 | 26.88 | 4 547.17 | 76 413 |
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采空区基本信息统计
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| 采空区标号 | 位置 | 跨度/m | 长度/m | 采高/m | 暴露面积/m2 | 采空区体积/m3 |
|---|
| 1# | 700~740 m中段 | 43.88 | 72.62 | 30.28 | 3 871.63 | 53 306 |
| 2# | 700~780 m中段 | 34.83 | 89.51 | 68.50 | 6 878.53 | 190 739 |
| 3# | 740~820 m中段 | 14.66 | 21.39 | 40.21 | 915.47 | 6 267 |
| 4# | 740~820 m中段 | 35.61 | 40.08 | 67.30 | 3 051.71 | 77 756 |
| 5# | 820 m以上中段 | 46.61 | 84.52 | 26.88 | 4 547.17 | 76 413 |
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| 步骤 | 模拟内容 |
|---|
| 1 | 计算自重作用下的初始应力场 |
| 2 | 开挖采空区,形成1#、2#、3#、4#、5#采空区 |
| 3 | 充填700~740 m中段之间的采空区 |
| 4 | 充填740~780 m中段之间的采空区 |
| 5 | 充填780~820 m中段之间的采空区 |
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模拟步骤模拟内容
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| 步骤 | 模拟内容 |
|---|
| 1 | 计算自重作用下的初始应力场 |
| 2 | 开挖采空区,形成1#、2#、3#、4#、5#采空区 |
| 3 | 充填700~740 m中段之间的采空区 |
| 4 | 充填740~780 m中段之间的采空区 |
| 5 | 充填780~820 m中段之间的采空区 |
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| 岩性 | 容重/(kN·m-3) | 弹性模量/GPa | 体积模量/GPa | 剪切模量/GPa | 抗拉强度/MPa | 黏聚力/MPa | 摩擦角/(°) |
|---|
| 绢云母砂质板岩 | 27.92 | 8.68 | 8.68 | 0.17 | 0.28 | 3.37 | 25.00 |
| 矿体 | 27.26 | 9.96 | 9.96 | 0.26 | 0.30 | 3.89 | 26.81 |
| 充填体 | 9.21 | 1.00 | 2.01 | 1.76 | 0.05 | 0.35 | 19.32 |
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数值模拟计算参数
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| 岩性 | 容重/(kN·m-3) | 弹性模量/GPa | 体积模量/GPa | 剪切模量/GPa | 抗拉强度/MPa | 黏聚力/MPa | 摩擦角/(°) |
|---|
| 绢云母砂质板岩 | 27.92 | 8.68 | 8.68 | 0.17 | 0.28 | 3.37 | 25.00 |
| 矿体 | 27.26 | 9.96 | 9.96 | 0.26 | 0.30 | 3.89 | 26.81 |
| 充填体 | 9.21 | 1.00 | 2.01 | 1.76 | 0.05 | 0.35 | 19.32 |
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