Article(id=1322559812282463017, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559792544072145, 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=1735142400000, receivedDateStr=2024-12-26, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793252431220, onlineDateStr=2026-10-29, pubDate=1769270400000, pubDateStr=2026-01-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793252431220, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793252431220, creator=13701087609, updateTime=1793252431220, updator=13701087609, issue=Issue{id=1322559792544072145, tenantId=1146029695717560320, journalId=1225396423026438145, year='2026', volume='46', issue='1', pageStart='1', pageEnd='306', issueExtLink='null', onlineDate='null', pubDate='1769270400000', pubDateStr='2026-01-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793252426515, creator='13701087609', updateTime=1793252675339, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322560836246286849, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559792544072145, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322560836246286850, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559792544072145, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=177, endPage=185, ext={EN=ArticleExt(id=1322559812496372522, articleId=1322559812282463017, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Study on Compressive Mechanical Properties and Crushing Law of Phosphate Rock Under Different Saturation Time, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=

In order to study the influence of saturation time on the mechanical properties and crushing law of phosphate rock, the static and dynamic mechanical tests under different strain rates were carried out on the natural, saturated 48 hours and saturated 3 months of phosphate rock. The test results show that under the condition of static load (low strain rate), the strength of ore rock decreases with the increase of saturation time, but the strength reduction rate shows a trend of fast first (within 48 hours) and then slow. The compressive strength of ore rock saturated for 3 months is 21% lower than that of saturated for 48 hours. Under the condition of dynamic load (medium and high strain rate, 43-146 s^-1), the strength of ore rock is affected by the mutual game and synergistic effect of weakening and strengthening of free water in the ore rock. With the increase of saturation time, the strength of ore rock increases firstly and then decreases. The dynamic compressive strength of ore rock saturated for 3 months is the smallest, which is reduced by 25.9%-28.5% compared with that for 48 hours, and reduced by 7.0%-19.7% compared with that under natural state. Saturation effect can improve the sensitivity of dynamic compressive strength of rock to strain rate. The crushing form of ore rock is closely related to its strength. The larger the dynamic compressive strength, the smaller the fragmentation after crushing. In the same strain rate range, the average particle size of the ore rock after the impact from large to small is the ore rock saturated for 48 hours, the ore rock in the natural state, and the ore rock saturated for 3 months. Long-term saturation (such as 3 months and above) will significantly reduce the strength of ore rock and make the crushing more thorough. At this time, the unit consumption of explosives can be appropriately reduced to avoid safety hazards such as flying stones caused by excess energy.

, authors=Xinchang LI, Zhiyu ZHANG, Haoshan LIU, authorsList=Xinchang LI, Zhiyu ZHANG, Haoshan LIU, authorCompany=null, correspAuthors=Zhiyu ZHANG, 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=1322559812903220012, articleId=1322559812282463017, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=不同饱水时长下磷矿岩压缩力学特性及破碎规律研究, columnId=1226462295417598973, journalTitle=矿业研究与开发, columnName=矿山安全与环保, runingTitle=null, highlight=null, articleAbstract=

为研究饱水时长对磷矿岩力学特性与破碎规律的影响，对自然状态、饱水48 h及饱水3个月的磷矿矿岩分别开展了不同应变率下的静、动态力学试验。试验结果表明：在静载（低应变率）条件下，矿岩强度随饱水时间的增加而不断降低，但强度降低速率呈先（48 h以内）快后慢的变化趋势，饱水3个月矿岩的抗压强度较饱水48 h降低21%；在动载（中高应变率，43~146 s^-1）条件下，矿岩强度受其内部自由水弱化作用和强化作用的相互博弈、协同作用影响，表现为随着饱水时间增加，岩石强度先提高后降低，饱水3个月矿岩的动态抗压强度最小，与饱水48 h矿岩强度相比，降低了25.9%~28.5%，与自然状态下矿岩强度相比，降低了7.0%~19.7%；饱水作用可以提高矿岩动态抗压强度对应变率的敏感性。矿岩的破碎形态与其强度密切相关，动态抗压强度越大，其破碎后的块度越小；在同一应变率区间内，冲击后矿岩的平均粒径从大到小依次为饱水48 h的矿岩、自然状态下的矿岩、饱水3个月的矿岩。长期饱水（如3个月及以上）会显著降低磷矿岩强度，使破碎更加彻底，此时可适当减小炸药单耗，避免能量过剩而引发飞石等安全隐患。

, authors=李欣倡, 张智宇, 刘浩杉, authorsList=李欣倡, 张智宇, 刘浩杉, authorCompany=null, correspAuthors=张智宇, authorNote=, correspAuthorsNote=, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=fSeMYd10bQjp0E9kG64kwg==, magXml=ZRrEQS+DISciotAWR4ghVA==, pdfUrl=null, pdf=SfH+KIBVL2VzYKyxVpWwhA==, pdfFileSize=2326535, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=eP/UUTU151qjkzS6WMNN7g==, mapNumber=null, fund=null)}, authors=[Author(id=1322559814983594801, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322559812282463017, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=839556734@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322559815059092275, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322559812282463017, authorId=1322559814983594801, language=EN, stringName=Xinchang LI, firstName=Xinchang, middleName=null, lastName=LI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=Faculty of land and Resources Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322559815117812532, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322559812282463017, authorId=1322559814983594801, language=CN, stringName=李欣倡, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=昆明理工大学 国土资源工程学院，云南 昆明　650093, bio={"content":"

李欣倡（1998—），男，重庆梁平人，硕士研究生，主要从事工程爆破等方面的研究。E-mail:839556734@qq.com

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李欣倡（1998—），男，重庆梁平人，硕士研究生，主要从事工程爆破等方面的研究。E-mail:839556734@qq.com

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