Article(id=1322559885083001166, 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=1740585600000, receivedDateStr=2025-02-27, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793252448577, onlineDateStr=2026-10-29, pubDate=1771948800000, pubDateStr=2026-02-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793252448577, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793252448577, creator=13701087609, updateTime=1793252448577, 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=175, endPage=186, ext={EN=ArticleExt(id=1322559885229801807, articleId=1322559885083001166, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Study on the Influence of Acid Solution on Dynamic Mechanical Properties and Meso-Scale Damage Mechanism of Sandstone, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=

To investigate the effect of chemical solution corrosion on the dynamic impact compression mechanical properties of sandstone, red sandstone accelerated by distilled water and HCl solution with pH of 5 and 3 were used as the research objects. Dynamic compression tests were conducted under five different impact pressures to explore the influence of chemical solution corrosion on the dynamic mechanical parameters, crushing energy consumption, and failure mode of sandstone. The corrosion process and degradation mechanism of sandstone by chemical solutions were revealed using XRD and SEM, and the variation of micro fractal dimension before and after chemical solution corrosion was quantitatively characterized by box-counting method. The results indicate that in acidic environments, muscovite and plagioclase in sandstone will transform into quartz and soft kaolinite, and the cement will be dissolved. The contact mode among particles will change, resulting in an increase in the fractal dimension and damage rate of sandstone microstructure with the increase of solution acidity. Under the action of acidic solution, the stiffness of mineral particles decreases, the structure is loose, and the mechanical properties deteriorate. Taking the strain rate of 58.06 s^-1 as an example, as the acidity of the solution increases, the peak dynamic stress decreases by 17.27%, 39.83% and 49.63%, respectively, and the dynamic peak strain increases by 13.04%, 31.30% and 38.26%, respectively. After corrosion, the macroscopic fragmentation of sandstone intensifies, the energy consumption ratio decreases, the fractal dimension increases, and the failure mode changes from tension to shear. This research system reveals the mechanism of the influence of chemical corrosion on the dynamic mechanical behavior of sandstone, providing a reference for the stability assessment of rock engineering in acidic environments.

, authors=Jiangjiang FENG¹, Zhiqiang KANG^{2, 3}, Yongliang SUN¹, Yankun MA¹, Minghua HAO¹, authorsList=Jiangjiang FENG, Zhiqiang KANG, Yongliang SUN, Yankun MA, Minghua HAO, 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=1322559887956099409, articleId=1322559885083001166, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=酸性溶液对砂岩动态力学特性的影响及细观损伤机制研究, columnId=1226462295417598973, journalTitle=矿业研究与开发, columnName=矿山安全与环保, runingTitle=null, highlight=null, articleAbstract=

为研究化学溶液腐蚀对砂岩动态冲击压缩力学特性的影响，以蒸馏水及pH分别为5和3的HCl溶液加速腐蚀后的红砂岩为研究对象，进行5种不同冲击气压下的动态压缩试验，探究化学溶液的腐蚀作用对砂岩动态力学参数、破碎能耗及破坏形态的影响。利用XRD和SEM揭示了化学溶液对砂岩的腐蚀过程及劣化机制，并通过盒维数法定量表征了化学溶液腐蚀前后微观分形维数的变化规律。结果表明：酸性环境下砂岩中的白云母和斜长石会转化成石英和软质高岭石，胶结物被溶蚀，颗粒间的接触方式发生改变，导致砂岩微观结构分形维数和损伤率随溶液酸性增加而上升；在酸性溶液作用下，矿物颗粒刚度降低，结构松散，力学性能劣化。以应变率58.06 s^-1为例，随溶液酸度增强，动态应力峰值降幅分别为17.27%、39.83%、49.63%，动态峰值应变增幅分别为13.04%、31.30%、38.26%。腐蚀后砂岩宏观破碎加剧、耗能比下降、分形维数升高，破坏形式由张拉向剪切转变。该研究系统揭示了化学腐蚀对砂岩动态力学行为的影响机制，为酸性环境下岩体工程的稳定性评估提供了参考。

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冯江江（1998—），男，山西长治人，硕士研究生，主要从事矿山岩石力学研究工作。E-mail:2363988140@qq.com

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冯江江（1998—），男，山西长治人，硕士研究生，主要从事矿山岩石力学研究工作。E-mail:2363988140@qq.com

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