Article(id=1322559891764532191, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559853093048851, 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=1752336000000, receivedDateStr=2025-07-13, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793252450170, onlineDateStr=2026-10-29, pubDate=1771948800000, pubDateStr=2026-02-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793252450170, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793252450170, creator=13701087609, updateTime=1793252450170, updator=13701087609, issue=Issue{id=1322559853093048851, tenantId=1146029695717560320, journalId=1225396423026438145, year='2026', volume='46', issue='2', pageStart='1', pageEnd='326', issueExtLink='null', onlineDate='null', pubDate='1771948800000', pubDateStr='2026-02-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793252440951, creator='13701087609', updateTime=1793252699964, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322560939526828556, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559853093048851, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322560939526828557, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559853093048851, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=118, endPage=129, ext={EN=ArticleExt(id=1322559892502729696, articleId=1322559891764532191, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Analysis and Research on the Roof Failure Mode and Influencing Factors of the Ultra-Long Working Face in Xiaobaodang Coal Mine, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=

To investigate the roof fracture characteristics and mine pressure distribution patterns in ultra-long working faces (with a strike length ≥ 300 m), thereby effectively guiding roof control, the 132205 ultra-long fully mechanized working face in Xiaobaodang Coal Mine was taken as the research background. Combining theoretical analysis, numerical simulation, and field measurements, a zonal fracture mechanism of "central preferential fracture-migration toward both sides" which was formed under the coupling effect of advanced mining-induced fractures and primary fractures was revealed. The evolution process involves three stages, namely fracture in the central peak zone, stress migration in the non-peak zone, and instability in the side peak zones. Based on FLAC3D numerical simulation, the influence of working face length on mine pressure manifestation was elucidated as follows. When the length increases from 250 m to 450 m, roof subsidence grows several-fold, the initial pressure step distance decreases to 75 m, and the mine pressure distribution pattern shifts from an "arch-shaped" single peak to an "M-shaped" triple peak. Field-measured data from hydraulic supports validates the reliability of the simulation results. An innovative zonal coordinated rack-moving scheme of hydraulic support regulation was proposed, improving support resistance uniformity through differentiated strategies of grouped rack-moving mode in high-stress zones and stand-alone rack-moving mode in low-stress zones, holding significant engineering value for promoting large-scale development of shallow-buried coal seams in western China.

, authors=Bin ZHAO¹, Chao MA², Yaozhi LI², Weidong PAN², Kunming ZHANG³, authorsList=Bin ZHAO, Chao MA, Yaozhi LI, Weidong PAN, Kunming ZHANG, 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=1322559892989268961, articleId=1322559891764532191, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=小保当煤矿超长工作面顶板破断方式及影响因素分析研究, columnId=1226462295417598973, journalTitle=矿业研究与开发, columnName=矿山安全与环保, runingTitle=null, highlight=null, articleAbstract=

为探究超长工作面（倾向长度≥300 m）顶板破断特征与矿压分布规律，有效指导顶板控制，以小保当煤矿132205超长综采工作面为研究背景，结合理论分析、数值模拟与现场实测进行研究，揭示了工作面顶板受超前采动裂隙与原生裂隙耦合作用形成的“中部优先破断－向两侧迁移”分区破断机制，其演化经历中部峰值区破断、非峰值区应力迁移和两侧峰值区失稳三阶段；基于FLAC3D数值模拟，阐明了工作面长度对矿压显现的影响规律：当长度从250 m增至450 m时，顶板下沉量增长数倍，初次来压步距降至75 m，矿压分布形态由“拱形”单峰值向“M”形三峰值转变，液压支架现场实测数据验证了模拟结果的可靠性；创新提出了“分区协同移架”液压支架调控方案，通过高应力区成组移架与低应力区独立移架的差异化策略，使支架阻力均匀性得到了提升，对推动我国西部浅埋煤层规模化开发具有重要工程价值。

, authors=赵斌¹, 马超², 李垚志², 潘卫东², 张坤铭³, authorsList=赵斌, 马超, 李垚志, 潘卫东, 张坤铭, authorCompany=null, correspAuthors=null, authorNote=, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=RoIO5Rno7412lGS8NCphzA==, magXml=s7sjwUOlbPLIf3oCJnRwMA==, pdfUrl=null, pdf=wD9Z6rwpdWLNLeFXfBfP0g==, pdfFileSize=4237923, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=z3DvYGZgmG/irOI3uSExog==, mapNumber=null, fund=null)}, authors=[Author(id=1322559893421282284, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322559891764532191, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=zb@zmdtny.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322559893584860142, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322559891764532191, authorId=1322559893421282284, language=EN, stringName=Bin ZHAO, firstName=Bin, middleName=null, lastName=ZHAO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1.Tashan Coal Mine, China Coal Datong Energy Co., Ltd., Datong, Shanxi 037001, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322559893651969007, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322559891764532191, authorId=1322559893421282284, language=CN, stringName=赵斌, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1．中煤大同能源有限责任公司 塔山煤矿，山西 大同市　037001, bio={"content":"

赵斌（1972—），男，内蒙古乌兰察布人，硕士，高级工程师，主要从事煤炭开采技术研究和管理工作。E-mail:zb@zmdtny.com

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赵斌（1972—），男，内蒙古乌兰察布人，硕士，高级工程师，主要从事煤炭开采技术研究和管理工作。E-mail:zb@zmdtny.com

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