Article(id=1322560023595700226, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559951067792299, 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=1756051200000, receivedDateStr=2025-08-25, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793252481602, onlineDateStr=2026-10-29, pubDate=1777046400000, pubDateStr=2026-04-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793252481602, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793252481602, creator=13701087609, updateTime=1793252481602, updator=13701087609, issue=Issue{id=1322559951067792299, tenantId=1146029695717560320, journalId=1225396423026438145, year='2026', volume='46', issue='4', pageStart='1', pageEnd='294', issueExtLink='null', onlineDate='null', pubDate='1777046400000', pubDateStr='2026-04-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793252464310, creator='13701087609', updateTime=1793252763065, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322561204200001631, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559951067792299, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322561204200001632, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559951067792299, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=149, endPage=161, ext={EN=ArticleExt(id=1322560023931244547, articleId=1322560023595700226, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Influence of Water-Bearing State on Mechanical Properties and Energy Evolution of Fractured Sandstone, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=

To investigate the mechanical properties and energy evolution laws of fractured sandstone under water-bearing conditions, uniaxial compression tests were conducted using a microcomputer-controlled coal-rock rigid impact testing system on sandstone specimens collected from a mine in Ordos. The tests considered both natural and saturated states, as well as different fracture inclination angles (0°, 30°, 60°, 90°). The full stress-strain curves, physical and mechanical parameters, energy evolution laws, and crack propagation behavior of fractured sandstone were analyzed. The results show that compared with intact sandstone, the peak strength and elastic modulus of sandstone with pre-existing fractures are significantly reduced. The total energy absorbed by the specimens under natural states (196-317 kJ/m³) is approximately 1.85 times that under saturated states (102-176 kJ/m³), and the total energy increases as the fracture inclination angle increases. Regarding energy evolution, the proportion of elastic strain energy exceeds 92% during the stable damage stage, while it drops to below 61.5% during the accelerated damage stage, with the proportion of dissipated energy which shows the opposite trend. The failure mode of the specimens exhibits significant anisotropy, and the deterioration effect of water reduces the initiation stress by 13.43% to 18.18%, while also increasing the occurrence of rock spalling. Fracture inclination angle and water-bearing state are key factors controlling the mechanical properties, energy evolution, and failure mode of sandstone. The research findings can provide a theoretical basis for the stability control of water-rich fractured rock mass engineering.

, authors=Shixiang GUO¹, Daming YANG^{1, 2}, Qiuge YU³, Han MENG¹, authorsList=Shixiang GUO, Daming YANG, Qiuge YU, Han MENG, authorCompany=null, correspAuthors=Daming YANG, 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=1322560024157736964, articleId=1322560023595700226, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=含水状态对裂隙砂岩力学特性与能量演化的影响, columnId=1226462295417598973, journalTitle=矿业研究与开发, columnName=矿山安全与环保, runingTitle=null, highlight=null, articleAbstract=

为揭示含水条件下裂隙砂岩的力学特性及能量演化规律，以鄂尔多斯某矿砂岩为研究对象，采用微机控制煤岩刚性冲击试验系统开展单轴压缩试验。试验考虑了自然与饱水两种状态，以及不同裂隙倾角（0°、30°、60°、90°），分析了裂隙砂岩的全应力-应变曲线、物理力学参数、能量演化规律及裂纹扩展特征。结果表明：与完整砂岩相比，含裂隙倾角砂岩的峰值强度和弹性模量较完整试验均有明显下降；自然状态下试样吸收的总能量（196~317 kJ/m³）约为饱水状态（102~176 kJ/m³）的1.85倍，且总能量随裂隙倾角增大而增加。在能量演化方面，损伤平稳阶段弹性应变能占比达92%以上，加速损伤阶段则降至61.5%以下，耗散能占比则相反。试验的破坏模式具有显著各向异性，水的劣化作用使起裂应力降低13.43%~18.18%，并使岩块剥落现象增多。裂隙倾角和含水状态是控制砂岩力学特性、能量演化和破坏模式的关键因素，研究结果可为富水裂隙岩体工程的稳定性控制提供理论依据。

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郭世祥（1998—），男，山东济宁人，硕士研究生，主要从事矿山压力及岩层控制方面的研究。E-mail:1823431845@qq.com

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郭世祥（1998—），男，山东济宁人，硕士研究生，主要从事矿山压力及岩层控制方面的研究。E-mail:1823431845@qq.com

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