Article(id=1322559797841481733, 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=1735747200000, receivedDateStr=2025-01-02, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793252427777, onlineDateStr=2026-10-29, pubDate=1769270400000, pubDateStr=2026-01-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793252427777, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793252427777, creator=13701087609, updateTime=1793252427777, 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=19, endPage=30, ext={EN=ArticleExt(id=1322559798009253894, articleId=1322559797841481733, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Numerical Simulation Study on Support of Auxiliary Ramp in Deep Mining of a Metal Mine, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=

The stability of deep roadway is one of the keys and difficulties in deep mining. Taking the deep mining of a hard rock metal mine as the engineering background, according to the ground pressure stress test results, FLAC3D was used to construct the numerical model, and five representative altitudes were selected to quantitatively analyze the auxiliary ramp stability under different support schemes from four aspects of stress, displacement, strain and plastic zone. The results show that when the circular arch is supported by C30 shotcrete with a thickness of 100 mm, the auxiliary ramp can remain stable at elevations of 2 325 m or above, but it is unstable at elevations of 2 175 m and 1 950 m, so it needs to be strengthened. When the floor is laid with C30 cast concrete with a thickness of 300 mm, the floor within the elevation range of 2 850 m to 1 950 m shows unstable conditions. Three schemes of strengthening support were studied respectively: only increasing the shotcrete strength of the arc arch support body, only increasing the shotcrete support thickness, and extending the arc arch support body into a cylindrical support structure. The results indicate that none of these schemes can maintain the stability of the deep section of the auxiliary ramp. A joint support scheme of "cylindrical structure+sprayed steel fiber concrete+lagged floor building" was proposed. Calculation results has verified the feasibility of this scheme, which is recommended for the auxiliary ramp below the elevation of 2 325 m in the mine. The supporting body is cylindge-shaped CF35 sprayed steel fiber concrete with a thickness of 100 mm.

, authors=Zhigang ZHU¹, Kepeng HOU¹, Huafen SUN¹, Yalei ZHE¹, Yunlin YU², Xiangdong NIU³, Mei YANG⁴, Yong YANG¹, authorsList=Zhigang ZHU, Kepeng HOU, Huafen SUN, Yalei ZHE, Yunlin YU, Xiangdong NIU, Mei YANG, Yong YANG, authorCompany=null, correspAuthors=Kepeng HOU, 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=1322559798445461511, articleId=1322559797841481733, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=某金属矿山深部辅助斜坡道的支护模拟研究, columnId=1226462294582936453, journalTitle=矿业研究与开发, columnName=深部、深海矿产资源勘探与开发, runingTitle=null, highlight=null, articleAbstract=

深部巷道稳定性是深部开采的关键问题之一，同时也是难点之一。以某硬岩金属矿山深部开采为工程背景，根据地应力测试结果，应用FLAC3D构建数值模型，选择5个代表性的高程，从应力、位移、应变和塑性区四个方面，定量分析不同支护方案下的辅助斜坡道稳定性。研究表明：采用厚度为100 mm的C30喷射混凝土支护圆弧拱时，高程2 325 m及以上的辅助斜坡道可以保持稳定，在高程2 175 m和1 950 m处表现为不稳定状态，需要加强支护；底板采用厚度为300 mm的C30浇注混凝土铺设，在高程2 850 m~1 950 m范围内底板均表现为不稳定状态；分别研究了仅提高圆弧拱支护体的喷射混凝土强度、仅增加喷射混凝土支护厚度、延伸圆弧拱支护体为圆筒状支护结构等3种加强支护的方案，结果均不能保持辅助斜坡道深部段的稳定性；提出“圆筒状结构+喷射钢纤维混凝土+滞后造底”联合支护方案，经计算，验证该支护方案可行，推荐矿山在高程2 325 m以下的辅助斜坡道使用该支护方案，支护体为100 mm厚的圆筒状CF35喷射钢纤维混凝土。

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朱志岗（1992—），男，云南陆良人，博士研究生，工程师，主要从事矿山岩石力学等方面的研究工作。E-mail:2396562792@qq.com

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朱志岗（1992—），男，云南陆良人，博士研究生，工程师，主要从事矿山岩石力学等方面的研究工作。E-mail:2396562792@qq.com

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