Article(id=1322594647650709749, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322594503278580030, 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=1706630400000, receivedDateStr=2024-01-31, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793260736619, onlineDateStr=2026-10-29, pubDate=1737734400000, pubDateStr=2025-01-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793260736619, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793260736619, creator=13701087609, updateTime=1793260736619, updator=13701087609, issue=Issue{id=1322594503278580030, tenantId=1146029695717560320, journalId=1225396423026438145, year='2025', volume='45', issue='1', pageStart='1', pageEnd='276', issueExtLink='null', onlineDate='null', pubDate='1737734400000', pubDateStr='2025-01-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793260702199, creator='13701087609', updateTime=1793260702199, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=135, endPage=143, ext={EN=ArticleExt(id=1322594647835259126, articleId=1322594647650709749, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Damage Evolution Law and Simulation of Overlying Strata in Close-Distance Coal Seam Induced by Mining, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In order to study the damage effect of overlying strata and the movement and instability characteristics of overlying strata under mining in close-distance coal seams, based on the mining of a close-distance coal seam in Shendong mining area, the damage theory was used to analyze the instability and deformation characteristics of the overlying strata of the close-distance coal seam under mining and the time-space evolution law of microseismic. The damage characteristics of the close-distance coal seam considering the microseismic monitoring data were discussed. The 3DEC software was used to simulate the instability and fracture of overlying strata and the law of stress transfer in close-distance coal seams under mining. The results show that the damage evolution of overlying strata increases as the distance between the upper and lower coal seams approaches. The minimum damage degree is 0.31 and the maximum damage degree is 0.77 under different monitoring schemes. There is no obvious increase or decrease trend of microseismic events in the process of overhaul, and the number of microseismic events increases continuously as the closing distance between the upper and lower coal seam working faces during coal mining. The continuous advancement of the working face of the lower coal seam causes the displacement of the overlying strata to increase, and the maximum displacement of the overlying strata is 45.9 cm. The research results are of great significance for the stability control of overlying strata in similar close-distance coal seam mining and the safe and efficient mining of coal mines.
, authors=Xuan SHAO
1, Linlin CHEN
1, Kaiwen SHI
2, 3, Jie CHEN
2, 3, Yuanyuan PU
2, 3, Huiqiong HUANG
2, 3, Le XU
2, 3, authorsList=Xuan SHAO, Linlin CHEN, Kaiwen SHI, Jie CHEN, Yuanyuan PU, Huiqiong HUANG, Le XU, 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=1322594651408806159, articleId=1322594647650709749, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=采动诱发近距离煤层覆岩损伤演化规律及模拟研究, columnId=1226462295417598973, journalTitle=矿业研究与开发, columnName=矿山安全与环保, runingTitle=null, highlight=null, articleAbstract=
为研究采动下近距离煤层覆岩损伤效应及覆岩移动失稳破裂特征,以神东矿区某近距离煤层开采为背景,采用损伤理论分析了采动下近距离煤层覆岩失稳变形特征及微震时空演化规律,探讨了考虑微震监测数据的近距离煤层损伤特征,采用3DEC软件模拟研究了采动下近距离煤层覆岩失稳破裂及应力传递规律。结果表明:覆岩损伤演化随着上下煤层工作面距离不断靠近而增加,不同监测方案下最小损伤度为0.31,最大损伤度为0.77;检修过程中微震事件无明显增加或降低趋势,煤矿开采过程中随上下煤层工作面距离靠近微震事件数不断增加;下煤层工作面不断推进造成覆岩位移增加,最大覆岩位移为45.9 cm。研究结果对类似近距离煤层开采覆岩稳定性控制及煤矿安全高效开采具有重要意义。
, authors=邵轩
1, 陈林林
1, 史开文
2, 3, 陈结
2, 3, 蒲源源
2, 3, 黄慧琼
2, 3, 许乐
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1, address=
1.Gengcun Coal Mine of Henan Dayou Energy Co., Ltd., Mianchi county, Henan 472400, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322594652063117597, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, authorId=1322594651895345434, language=CN, stringName=邵轩, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1.河南大有能源股份有限公司耿村煤矿,河南 渑池县 472400, bio={"content":"
邵轩(1971—),男,河南罗山人,高级工程师,主要从事煤矿安全生产技术管理工作。E-mail:jby1010@126.com
"}, bioImg=null, bioContent=
邵轩(1971—),男,河南罗山人,高级工程师,主要从事煤矿安全生产技术管理工作。E-mail:jby1010@126.com
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1.河南大有能源股份有限公司耿村煤矿,河南 渑池县 472400)])]), Author(id=1322594652126032159, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, orderNo=1, 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=1322594652209918241, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, authorId=1322594652126032159, language=EN, stringName=Linlin CHEN, firstName=Linlin, middleName=null, lastName=CHEN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.Gengcun Coal Mine of Henan Dayou Energy Co., Ltd., Mianchi county, Henan 472400, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322594652277027106, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, authorId=1322594652126032159, language=CN, stringName=陈林林, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1.河南大有能源股份有限公司耿村煤矿,河南 渑池县 472400, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322594651643687184, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, xref=1., ext=[AuthorCompanyExt(id=1322594651652075793, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, companyId=1322594651643687184, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.Gengcun Coal Mine of Henan Dayou Energy Co., Ltd., Mianchi county, Henan 472400, China), AuthorCompanyExt(id=1322594651656270098, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, companyId=1322594651643687184, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.河南大有能源股份有限公司耿村煤矿,河南 渑池县 472400)])]), Author(id=1322594652356718884, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, orderNo=2, 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=1322594652453187879, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, authorId=1322594652356718884, language=EN, stringName=Kaiwen SHI, firstName=Kaiwen, middleName=null, lastName=SHI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, 3, address=
2.State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
3.School of Resources and Safety Engineering, Chongqing University, Chongqing 400044, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322594652528685352, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, authorId=1322594652356718884, language=CN, stringName=史开文, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, 3, address=
2.重庆大学 煤矿灾害动力学与控制国家重点实验室,重庆 400044
3.重庆大学 资源与安全学院,重庆 400044, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322594651723378963, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, xref=2., ext=[AuthorCompanyExt(id=1322594651731767572, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, companyId=1322594651723378963, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China), AuthorCompanyExt(id=1322594651740156181, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, companyId=1322594651723378963, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.重庆大学 煤矿灾害动力学与控制国家重点实验室,重庆 400044)]), AuthorCompany(id=1322594651811459350, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, xref=3., ext=[AuthorCompanyExt(id=1322594651819847959, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, companyId=1322594651811459350, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3.重庆大学 资源与安全学院,重庆 400044)])]), Author(id=1322594652599988522, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, 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=1322594652688068909, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, authorId=1322594652599988522, language=EN, stringName=Jie CHEN, firstName=Jie, middleName=null, lastName=CHEN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, 3, address=
2.State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
3.School of Resources and Safety Engineering, Chongqing University, Chongqing 400044, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322594652755177774, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, authorId=1322594652599988522, language=CN, stringName=陈结, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, 3, address=
2.重庆大学 煤矿灾害动力学与控制国家重点实验室,重庆 400044
3.重庆大学 资源与安全学院,重庆 400044, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322594651723378963, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, xref=2., ext=[AuthorCompanyExt(id=1322594651731767572, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, companyId=1322594651723378963, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China), AuthorCompanyExt(id=1322594651740156181, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, companyId=1322594651723378963, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.重庆大学 煤矿灾害动力学与控制国家重点实验室,重庆 400044)]), AuthorCompany(id=1322594651811459350, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, xref=3., ext=[AuthorCompanyExt(id=1322594651819847959, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, companyId=1322594651811459350, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3.重庆大学 资源与安全学院,重庆 400044)])]), Author(id=1322594652834869552, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, 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=1322594652918755635, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, authorId=1322594652834869552, language=EN, stringName=Yuanyuan PU, firstName=Yuanyuan, middleName=null, lastName=PU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, 3, address=
2.State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
3.School of Resources and Safety Engineering, Chongqing University, Chongqing 400044, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322594652990058804, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, authorId=1322594652834869552, language=CN, stringName=蒲源源, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, 3, address=
2.重庆大学 煤矿灾害动力学与控制国家重点实验室,重庆 400044
3.重庆大学 资源与安全学院,重庆 400044, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322594651723378963, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, xref=2., ext=[AuthorCompanyExt(id=1322594651731767572, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, companyId=1322594651723378963, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China), AuthorCompanyExt(id=1322594651740156181, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, companyId=1322594651723378963, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.重庆大学 煤矿灾害动力学与控制国家重点实验室,重庆 400044)]), AuthorCompany(id=1322594651811459350, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, xref=3., ext=[AuthorCompanyExt(id=1322594651819847959, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, companyId=1322594651811459350, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.School of Resources and Safety Engineering, Chongqing University, Chongqing 400044, China), AuthorCompanyExt(id=1322594651828236568, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, companyId=1322594651811459350, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.重庆大学 资源与安全学院,重庆 400044)])]), Author(id=1322594653061361974, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, 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=1322594653199774009, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, authorId=1322594653061361974, language=EN, stringName=Huiqiong HUANG, firstName=Huiqiong, middleName=null, lastName=HUANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, 3, address=
2.State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
3.School of Resources and Safety Engineering, Chongqing University, Chongqing 400044, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322594653262688570, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, authorId=1322594653061361974, language=CN, stringName=黄慧琼, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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Overlying strata fracture of close-distance coal seam induced mining, figureFileSmall=QijP/BoEtHg1pdzdRaw8qg==, figureFileBig=I8s9zP+oX96dDVkxB4+wTQ==, tableContent=null), ArticleFig(id=1322594656270004556, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, language=CN, label=图1, caption=
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监测方案一的微震变化特征, figureFileSmall=w2FHX63E2nh9zdc6tE+oVg==, figureFileBig=La639DmMG/xc1DwXLRNpNA==, tableContent=null), ArticleFig(id=1322594656777515345, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, language=EN, label=Fig.4, caption=
Microseismic variation characteristics of monitoring scheme 2, figureFileSmall=g8+V+kr1CIwakIdtXJuAkQ==, figureFileBig=ZL1+NDz8j5r2nckKAimglg==, tableContent=null), ArticleFig(id=1322594656853012818, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, language=CN, label=图4, caption=
监测方案二的微震变化特征, figureFileSmall=g8+V+kr1CIwakIdtXJuAkQ==, figureFileBig=ZL1+NDz8j5r2nckKAimglg==, tableContent=null), ArticleFig(id=1322594656911733075, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, language=EN, label=Fig.5, caption=
Microseismic variation characteristics of monitoring scheme 3, figureFileSmall=ArkvwanZ37GjFYZfwt5miQ==, figureFileBig=fLvICkGClDq6PYkxlkw41g==, tableContent=null), ArticleFig(id=1322594656983036244, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, language=CN, label=图5, caption=
监测方案三的微震变化特征, figureFileSmall=ArkvwanZ37GjFYZfwt5miQ==, figureFileBig=fLvICkGClDq6PYkxlkw41g==, tableContent=null), ArticleFig(id=1322594657104671061, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, language=EN, label=Fig.6, caption=
Microseismic variation characteristics of monitoring scheme 4, figureFileSmall=66QZLaE0DBoOQsyWjKIRfw==, figureFileBig=WoYgponayJXzNrqbCndcpg==, tableContent=null), ArticleFig(id=1322594657184362838, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, language=CN, label=图6, caption=
监测方案四的微震变化特征, figureFileSmall=66QZLaE0DBoOQsyWjKIRfw==, figureFileBig=WoYgponayJXzNrqbCndcpg==, tableContent=null), ArticleFig(id=1322594657276637528, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, language=EN, label=Fig.7, caption=
Microseismic event statistics and damage evolution characteristics under different design schemes, figureFileSmall=L9ZUbHK34LK10nZn/U0t/Q==, figureFileBig=u7RbeJ5JkgZFMavieXOP6w==, tableContent=null), ArticleFig(id=1322594657339552089, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, language=CN, label=图7, caption=
不同设计方案下微震事件统计及损伤演化特征, figureFileSmall=L9ZUbHK34LK10nZn/U0t/Q==, figureFileBig=u7RbeJ5JkgZFMavieXOP6w==, tableContent=null), ArticleFig(id=1322594657402466650, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, language=EN, label=Fig.8, caption=
Displacement variation characteristics of overlying strata under different excavation schemes, figureFileSmall=65sk63pAl5UsLUI4SXnMRg==, figureFileBig=Vs/prkKV7rSElfjmvU0WLw==, tableContent=null), ArticleFig(id=1322594657486352731, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, language=CN, label=图8, caption=
不同开挖方案下覆岩位移变化特征, figureFileSmall=65sk63pAl5UsLUI4SXnMRg==, figureFileBig=Vs/prkKV7rSElfjmvU0WLw==, tableContent=null), ArticleFig(id=1322594657545072988, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, language=EN, label=Fig.9, caption=
Z-direction displacement cloud diagrams of two coal seams under different excavation distances, figureFileSmall=v3ZwfJsgGGWIlYFbBUAmdA==, figureFileBig=J9p79vuUmL//nbdSjku5zw==, tableContent=null), ArticleFig(id=1322594657607987549, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, language=CN, label=图9, caption=
两煤层不同开挖距离下Z方向位移云图, figureFileSmall=v3ZwfJsgGGWIlYFbBUAmdA==, figureFileBig=J9p79vuUmL//nbdSjku5zw==, tableContent=null), ArticleFig(id=1322594657670902110, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, language=EN, label=Fig.10, caption=
Z-direction stress cloud diagrams of two coal seams under different excavation distances, figureFileSmall=HhB/tRlrznuNbVsDrIrGow==, figureFileBig=SKTQRKF2wZmiuDIqvAiyNw==, tableContent=null), ArticleFig(id=1322594657733816671, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, language=CN, label=图10, caption=
两煤层不同开挖距离下Z方向应力云图, figureFileSmall=HhB/tRlrznuNbVsDrIrGow==, figureFileBig=SKTQRKF2wZmiuDIqvAiyNw==, tableContent=null), ArticleFig(id=1322594657813508448, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, language=EN, label=Table 1, caption=
Mechanics parameters of rock
, figureFileSmall=null, figureFileBig=null, tableContent=
| 岩性 | 厚度/m | 泊松比 | 抗拉强度/MPa | 内摩擦角/(°) | 弹性模量/GPa | 黏聚力/MPa |
|---|
| 砂质泥岩 | 25.00 | 0.94 | 2.52 | 28 | 4.20 | 1.94 |
| 细砂岩 | 36.24 | 0.83 | 1.22 | 32 | 3.10 | 2.82 |
| 粉砂岩 | 2.30 | 0.62 | 1.38 | 31 | 2.50 | 1.62 |
| 泥岩 | 25.00 | 0.91 | 2.42 | 28 | 3.70 | 1.94 |
| 细砂岩 | 15.00 | 0.82 | 3.62 | 31 | 3.30 | 2.22 |
| M1煤 | 5.30 | 0.28 | 0.51 | 27 | 0.88 | 0.77 |
| 粉砂岩 | 24.36 | 0.57 | 1.37 | 29 | 2.85 | 1.14 |
| 砂质泥岩 | 21.50 | 0.71 | 2.22 | 28 | 3.40 | 2.45 |
| M2煤 | 3.40 | 0.34 | 0.31 | 25 | 1.20 | 0.72 |
| 粉砂岩 | 32.00 | 0.77 | 3.64 | 28 | 2.83 | 2.62 |
), ArticleFig(id=1322594657897394529, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594647650709749, language=CN, label=表1, caption=
岩层力学参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 岩性 | 厚度/m | 泊松比 | 抗拉强度/MPa | 内摩擦角/(°) | 弹性模量/GPa | 黏聚力/MPa |
|---|
| 砂质泥岩 | 25.00 | 0.94 | 2.52 | 28 | 4.20 | 1.94 |
| 细砂岩 | 36.24 | 0.83 | 1.22 | 32 | 3.10 | 2.82 |
| 粉砂岩 | 2.30 | 0.62 | 1.38 | 31 | 2.50 | 1.62 |
| 泥岩 | 25.00 | 0.91 | 2.42 | 28 | 3.70 | 1.94 |
| 细砂岩 | 15.00 | 0.82 | 3.62 | 31 | 3.30 | 2.22 |
| M1煤 | 5.30 | 0.28 | 0.51 | 27 | 0.88 | 0.77 |
| 粉砂岩 | 24.36 | 0.57 | 1.37 | 29 | 2.85 | 1.14 |
| 砂质泥岩 | 21.50 | 0.71 | 2.22 | 28 | 3.40 | 2.45 |
| M2煤 | 3.40 | 0.34 | 0.31 | 25 | 1.20 | 0.72 |
| 粉砂岩 | 32.00 | 0.77 | 3.64 | 28 | 2.83 | 2.62 |
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