Article(id=1322559962132365317, 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=1748016000000, receivedDateStr=2025-05-24, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793252466947, onlineDateStr=2026-10-29, pubDate=1777046400000, pubDateStr=2026-04-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793252466947, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793252466947, creator=13701087609, updateTime=1793252466947, 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=69, endPage=77, ext={EN=ArticleExt(id=1322559963885584390, articleId=1322559962132365317, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Optimization of Inter-Hole Delay Time for Phase Staggering Vibration Reduction Holes in Underground Medium-Deep Holes, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=

The safety issues posed by blasting vibration to surrounding buildings urgently need to be addressed, while traditional vibration-reduction methods rely on empirical parameters and lack statistical support based on small sample sizes. By conducting blast vibration monitoring at a certain mine, the peak vibration frequency was extracted using the fast Fourier transformation (FFT). The characteristics of the peak vibration frequency were then analyzed using a comparative approach that incorporated the Bootstrap method, Bayesian analysis, and maximum likelihood estimation. Based on this, the inter-hole delay time was adjusted to half a cycle and verified through field tests to confirm the accuracy of this method. The results show that as the distance from the explosion source increases, the vibration velocity of the particle gradually decreases, and the attenuation characteristics of vibration velocity vary with direction. The Bootstrap method does not require the assumption that the population follows a specific distribution, instead drawing samples directly from the original sample. This approach better reflects the characteristics and distribution of the samples, resulting in statistical outcomes that are more representative of reality. An 8-ms half-cycle is determined to be the optimal inter-hole delay time. Field tests show that, compared to a 20-ms inter-hole delay time, an 8-ms inter-hole delay time reduces peak vibration velocity in the X, Y, and Z directions by 14.81%, 12.68%, and 36.51%, respectively, while the peak vibration velocity in the combined velocity direction decreases by 22.55%, demonstrating a significant vibration reduction effect. The research findings provide a basis for optimizing parameters in medium-deep holes underground blasting, effectively addressing safety issues caused by blasting vibrations.

, authors=Mengyun ZHANG¹, Yunpeng ZHANG^{2, 3}, Xi YANG^{2, 3}, Peng YAN², authorsList=Mengyun ZHANG, Yunpeng ZHANG, Xi YANG, Peng YAN, authorCompany=null, correspAuthors=Yunpeng 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=1322559964137242631, articleId=1322559962132365317, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=地下中深孔错相减振孔间延期时间优选, columnId=1226462294490657775, journalTitle=矿业研究与开发, columnName=采矿与矿山充填, runingTitle=null, highlight=null, articleAbstract=

爆破振动对周边建筑物造成的安全问题亟待解决，而传统减振方法存在依赖经验参数、缺乏小样本统计支持的问题。通过对某矿开展爆破振动监测，利用快速傅里叶变换提取峰值振动频率，采用Bootstrap方法、贝叶斯分析及极大似然估计对比分析峰值振动频率特性。在此基础上，将孔间延期时间调整为其对应的半周期并进行现场试验验证，确定该方法的准确性。结果表明：随爆源距离增加，质点振动速度逐渐减小，不同方向上振速的衰减态势也不同；Bootstrap方法无需假设总体服从特定分布，直接从原样本出发进行抽样，能够更好地反映样本的特征和分布情况，统计结果更贴合实际；确定半周期8 ms为最佳孔间延期时间。现场试验显示，相较于孔间延期时间 20 ms，孔间延期时间 8 ms时X、Y、Z方向峰值振速分别降低14.81%，12.68%和36.51%，合速度方向的峰值振速降低22.55%，减振效果显著。研究结果为地下中深孔爆破提供了参数优化依据，有效解决了爆破振动造成的安全问题。

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张梦雲（2004—），女，山东日照人，主要从事爆破工程等方面的研究。E-mail:1130844266@qq.com

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张梦雲（2004—），女，山东日照人，主要从事爆破工程等方面的研究。E-mail:1130844266@qq.com

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