Article(id=1322164645285188270, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322164546295410919, 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=1732982400000, receivedDateStr=2024-12-01, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793158216067, onlineDateStr=2026-10-28, pubDate=1764000000000, pubDateStr=2025-11-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793158216067, onlineIssueDateStr=2026-10-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793158216067, creator=13701087609, updateTime=1793158216067, updator=13701087609, issue=Issue{id=1322164546295410919, tenantId=1146029695717560320, journalId=1225396423026438145, year='2025', volume='45', issue='11', pageStart='1', pageEnd='284', issueExtLink='null', onlineDate='null', pubDate='1764000000000', pubDateStr='2025-11-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793158192465, creator='13701087609', updateTime=1793158905697, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322167537857573862, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322164546295410919, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322167537861768167, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322164546295410919, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=122, endPage=132, ext={EN=ArticleExt(id=1322164645587178159, articleId=1322164645285188270, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Analysis on the Stability of Shafts Adjacent to Stopes with Caving Method and Filling Method and Its Influencing Factors, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=
The stability of mine shaft is very important to the safety of mining process. Taking the 1# shaft adjacent to the caving method stope and the filling method stope of a mine as the research object, a three-dimensional numerical model including the pillar caving method, the non-pillar caving method and the drift filling mining method was constructed, and the influence of mining disturbance of different mining methods on the stability of the shaft was analyzed. The results show that the main reason for the shaft failure is the superposition effect of the poor geological conditions of the rock mass in the ore-penetrating section and the mining disturbance. The disturbance caused by the mining of the drift filling mining method has the greatest influence on the maximum deformation value of the shaft, followed by the disturbance caused by the mining of the pillar caving method, and the disturbance caused by the mining of the non-pillar caving method has the least influence. Especially when the caving stope is mined at the same time, the superposition of the mining disturbance effect has a more significant effect on the deformation of the shaft. On the basis of comprehensive consideration of the existing engineering conditions of the mine, aiming at the risk of shaft failure that may be faced in the mining process of the ore body near the shaft in the section from the elevation of +710 m to +830 m, the curtain grouting reinforcement scheme was designed for the 1# shaft. The reinforcement scheme can ensure the safety of 1# shaft in the subsequent mining process.
, authors=Xiaohui LI
1, 2, Hongzhang CONG
3, Qingsong ZHANG
1, 2, Tengfei ZHANG
4, Yongchao GONG
1, 2, Zhuoyue GUO
3, authorsList=Xiaohui LI, Hongzhang CONG, Qingsong ZHANG, Tengfei ZHANG, Yongchao GONG, Zhuoyue GUO, authorCompany=null, correspAuthors=Qingsong 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=1322164649831813831, articleId=1322164645285188270, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=崩落法与充填法采场邻近井筒的稳定性及其影响因素分析, columnId=1226462295417598973, journalTitle=矿业研究与开发, columnName=矿山安全与环保, runingTitle=null, highlight=null, articleAbstract=
矿山井筒的稳定性对矿山开采过程中的安全至关重要。以某矿山崩落法采场与充填法采场邻近的1#竖井为研究对象,构建了包含有底柱崩落法、无底柱崩落法以及进路充填法3种采场的三维数值模型,分析了不同采矿方法开采扰动对井筒稳定性的影响。研究结果表明,引起井筒破坏的主要原因是该竖井穿过的岩体地质条件差和开采扰动的叠加效应;进路充填采矿法开采引起的扰动对井筒最大变形值的影响程度最大,其次为有底柱崩落法开采引起的扰动,无底柱崩落法开采引起的扰动的影响程度最小,特别是当崩落采场同时进行回采时,开采扰动效应的叠加对井筒的变形影响更加显著。在综合考虑该矿山的现有工程条件的基础上,针对标高+710 m至+830 m中段井筒附近矿体的开采过程中可能面临的井筒破坏风险,对1#竖井设计了帷幕注浆加固方案。该加固方案可保障1#竖井在后续回采过程中的安全。
, authors=李晓辉
1, 2, 丛宏章
3, 张庆嵩
1, 2, 张腾飞
4, 龚永超
1, 2, 郭卓越
3, authorsList=李晓辉, 丛宏章, 张庆嵩, 张腾飞, 龚永超, 郭卓越, authorCompany=null, correspAuthors=张庆嵩, authorNote=
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1, 2, address=
1.Changsha Institute of Mining Research Co., Ltd., Changsha, Hunan 410012, China
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1.长沙矿山研究院有限责任公司,湖南 长沙 410012
2.国家金属采矿工程技术研究中心,湖南 长沙 410012, bio={"content":"
李晓辉(1992—),男,湖南新化人,硕士,工程师,主要从事金属矿山开采方面的研究工作。E-mail:812003647@qq.com
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李晓辉(1992—),男,湖南新化人,硕士,工程师,主要从事金属矿山开采方面的研究工作。E-mail:812003647@qq.com
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3, address=
3.West Wuzhumuqin Silver Mining Co., Ltd., Xilingol League, Inner Mongolia 026217, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322164652507779806, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, authorId=1322164650750366427, language=CN, stringName=丛宏章, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, address=
3.西乌珠穆沁旗银漫矿业有限责任公司,内蒙古 锡林郭勒盟 026217, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322164650297381582, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, xref=3., ext=[AuthorCompanyExt(id=1322164650305770191, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, companyId=1322164650297381582, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3.西乌珠穆沁旗银漫矿业有限责任公司,内蒙古 锡林郭勒盟 026217)])]), Author(id=1322164652591665888, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=qingsong_zhang0@163.com, emailSecond=null, emailThird=null, correspondingAuthor=1, authorType=1, ext={EN=AuthorExt(id=1322164652696523491, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, authorId=1322164652591665888, language=EN, stringName=Qingsong ZHANG, firstName=Qingsong, middleName=null, lastName=ZHANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1.Changsha Institute of Mining Research Co., Ltd., Changsha, Hunan 410012, China
2.National Engineering Research Center for Metal Mining, Changsha, Hunan 410012, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322164652788798180, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, authorId=1322164652591665888, language=CN, stringName=张庆嵩, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1.长沙矿山研究院有限责任公司,湖南 长沙 410012
2.国家金属采矿工程技术研究中心,湖南 长沙 410012, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322164650087666376, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, xref=1., ext=[AuthorCompanyExt(id=1322164650100249289, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, companyId=1322164650087666376, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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4.Xizang Huatailong Mining Development Co., Ltd., Lhasa, Xizang 850200, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322164653032067817, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, authorId=1322164652864295654, language=CN, stringName=张腾飞, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
4, address=
4.西藏华泰龙矿业开发有限公司,西藏 拉萨 850200, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322164650398044881, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, xref=4., ext=[AuthorCompanyExt(id=1322164650406433490, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, companyId=1322164650398044881, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1.Changsha Institute of Mining Research Co., Ltd., Changsha, Hunan 410012, China
2.National Engineering Research Center for Metal Mining, Changsha, Hunan 410012, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322164653300503279, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, authorId=1322164653111759595, language=CN, stringName=龚永超, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.长沙矿山研究院有限责任公司,湖南 长沙 410012
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4.Xizang Huatailong Mining Development Co., Ltd., Lhasa, Xizang 850200, China), AuthorCompanyExt(id=1322164650414822099, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, companyId=1322164650398044881, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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The relative position relationship between 1# shaft and mining areas in each level, figureFileSmall=NB7G3eifB2RKRSWDEKjhXw==, figureFileBig=ULGtCK94JGdjeVcKk5eDXw==, tableContent=null), ArticleFig(id=1322164654474908414, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=CN, label=图1, caption=
各中段1#竖井与采场的相对位置关系, figureFileSmall=NB7G3eifB2RKRSWDEKjhXw==, figureFileBig=ULGtCK94JGdjeVcKk5eDXw==, tableContent=null), ArticleFig(id=1322164654667846399, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=EN, label=Fig.2, caption=
Numerical simulation model, figureFileSmall=0hx23RrfN2v6drL6h8awYQ==, figureFileBig=OVo3jryk8eeaAxVNrcx2+Q==, tableContent=null), ArticleFig(id=1322164654726566656, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=CN, label=图2, caption=
数值模拟模型, figureFileSmall=0hx23RrfN2v6drL6h8awYQ==, figureFileBig=OVo3jryk8eeaAxVNrcx2+Q==, tableContent=null), ArticleFig(id=1322164654802064129, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=EN, label=Fig.3, caption=
Simulation results of mining status, figureFileSmall=rLQitqpj8aGu5ehcm8/sVQ==, figureFileBig=YxNd0kyUYUwXhLNCRq/eeg==, tableContent=null), ArticleFig(id=1322164654898533122, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=CN, label=图3, caption=
开采现状模拟结果, figureFileSmall=rLQitqpj8aGu5ehcm8/sVQ==, figureFileBig=YxNd0kyUYUwXhLNCRq/eeg==, tableContent=null), ArticleFig(id=1322164655003390723, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=EN, label=Fig.4, caption=
Simulation results after shaft excavation, figureFileSmall=g0CjXO0CWQLjItONwyifYw==, figureFileBig=71yVTiP6tuUhI1d2ly/qAg==, tableContent=null), ArticleFig(id=1322164655095665412, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=CN, label=图4, caption=
井筒开挖后的模拟结果, figureFileSmall=g0CjXO0CWQLjItONwyifYw==, figureFileBig=71yVTiP6tuUhI1d2ly/qAg==, tableContent=null), ArticleFig(id=1322164655183745797, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=EN, label=Fig.5, caption=
Simulation results after top caving and filling in the stope of non-pillar caving method, figureFileSmall=ibdMr/ntmsr90m+CzSPyFg==, figureFileBig=rChtG262/fP0SJds+4DEJQ==, tableContent=null), ArticleFig(id=1322164656878244614, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=CN, label=图5, caption=
无底柱崩落法采场放顶、充实后的模拟结果, figureFileSmall=ibdMr/ntmsr90m+CzSPyFg==, figureFileBig=rChtG262/fP0SJds+4DEJQ==, tableContent=null), ArticleFig(id=1322164657125708551, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=EN, label=Fig.6, caption=
Simulation results after top caving and filling in the stope of caving with pillar method, figureFileSmall=hvKJypMN5FSwf2VBcJAiJg==, figureFileBig=glagaowEHowfGnxWbON6Iw==, tableContent=null), ArticleFig(id=1322164657217983240, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=CN, label=图6, caption=
有底柱崩落法采场放顶、充实后的模拟结果, figureFileSmall=hvKJypMN5FSwf2VBcJAiJg==, figureFileBig=glagaowEHowfGnxWbON6Iw==, tableContent=null), ArticleFig(id=1322164657301869321, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=EN, label=Fig.7, caption=
Simulation results of simultaneous mining and top caving in the stope of caving method, figureFileSmall=XglrN6oCF3CbWQed77eMpA==, figureFileBig=yFRlQZ/USHUvL29ZvA4GFg==, tableContent=null), ArticleFig(id=1322164657448669962, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=CN, label=图7, caption=
崩落法采场同时开采、放顶后的模拟结果, figureFileSmall=XglrN6oCF3CbWQed77eMpA==, figureFileBig=yFRlQZ/USHUvL29ZvA4GFg==, tableContent=null), ArticleFig(id=1322164657532556043, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=EN, label=Fig.8, caption=
Simulation results of stoping by drift filling mining method, figureFileSmall=nKBtbSiddcL7QgYpkDs0QQ==, figureFileBig=Siz9IZjXAmo2BMyDE/efPQ==, tableContent=null), ArticleFig(id=1322164657620636428, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=CN, label=图8, caption=
进路充填采矿法开采的模拟结果, figureFileSmall=nKBtbSiddcL7QgYpkDs0QQ==, figureFileBig=Siz9IZjXAmo2BMyDE/efPQ==, tableContent=null), ArticleFig(id=1322164657721299725, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=EN, label=Fig.9, caption=
Maximum deformation of the shaft for different schemes, figureFileSmall=zOtWN+8OV7VjoZLTTD0A5g==, figureFileBig=JvwdBNGJDCGK5PDGW4kvLw==, tableContent=null), ArticleFig(id=1322164657796797198, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=CN, label=图9, caption=
不同方案的井筒最大变形值, figureFileSmall=zOtWN+8OV7VjoZLTTD0A5g==, figureFileBig=JvwdBNGJDCGK5PDGW4kvLw==, tableContent=null), ArticleFig(id=1322164657901654799, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=EN, label=Fig.10, caption=
Curtain grouting reinforcement of the shaft 1#, figureFileSmall=uqJNWa1YyWdYP+9xwjF3lw==, figureFileBig=tba0jKuh6ppjwBhdlHK/lQ==, tableContent=null), ArticleFig(id=1322164657968763664, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=CN, label=图10, caption=
1#竖井的帷幕注浆加固方案, figureFileSmall=uqJNWa1YyWdYP+9xwjF3lw==, figureFileBig=tba0jKuh6ppjwBhdlHK/lQ==, tableContent=null), ArticleFig(id=1322164658044261137, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=EN, label=Fig.11, caption=
Process flow of curtain grouting, figureFileSmall=dRk+/bVmHn+rxxhdBcp3Pg==, figureFileBig=HlBMDE02XEQL7m9U9rcc9w==, tableContent=null), ArticleFig(id=1322164658111370002, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=CN, label=图11, caption=
帷幕注浆工艺流程, figureFileSmall=dRk+/bVmHn+rxxhdBcp3Pg==, figureFileBig=HlBMDE02XEQL7m9U9rcc9w==, tableContent=null), ArticleFig(id=1322164658237199123, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=EN, label=Table 1, caption=
Simulation calculation schemes
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案 | 开采范围 | 目的 |
|---|
| 方案一 | 竖井掘进 | 与实际情况一致,验证模型的可靠性。 |
| 无底柱崩落法采场 |
| 有底柱崩落法采场 |
| 进路充填法采场 |
| 方案二 | 竖井掘进 | 分析井筒在原岩条件下开挖后的稳定性。 |
| 方案三 | 竖井掘进 | 分析无底柱崩落法采场开采并垮落充实采空区对井筒稳定性的影响。 |
| 无底柱崩落法采场 |
| 方案四 | 竖井掘进 | 分析有底柱崩落法采场开采并垮落充实采空区对井筒稳定性的影响。 |
| 有底柱崩落法采场 |
| 方案五 | 竖井掘进 | 分析无底柱崩落法采场和有底柱崩落法采场同时开采并垮落充实采空区对井筒稳定性的影响。 |
| 无底柱崩落法采场 |
| 有底柱崩落法采场 |
| 方案六 | 竖井掘进 | 分析进路充填法采场开采对井筒稳定性的影响。 |
| 进路充填法采场 |
), ArticleFig(id=1322164658354639636, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=CN, label=表1, caption=
模拟计算方案
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案 | 开采范围 | 目的 |
|---|
| 方案一 | 竖井掘进 | 与实际情况一致,验证模型的可靠性。 |
| 无底柱崩落法采场 |
| 有底柱崩落法采场 |
| 进路充填法采场 |
| 方案二 | 竖井掘进 | 分析井筒在原岩条件下开挖后的稳定性。 |
| 方案三 | 竖井掘进 | 分析无底柱崩落法采场开采并垮落充实采空区对井筒稳定性的影响。 |
| 无底柱崩落法采场 |
| 方案四 | 竖井掘进 | 分析有底柱崩落法采场开采并垮落充实采空区对井筒稳定性的影响。 |
| 有底柱崩落法采场 |
| 方案五 | 竖井掘进 | 分析无底柱崩落法采场和有底柱崩落法采场同时开采并垮落充实采空区对井筒稳定性的影响。 |
| 无底柱崩落法采场 |
| 有底柱崩落法采场 |
| 方案六 | 竖井掘进 | 分析进路充填法采场开采对井筒稳定性的影响。 |
| 进路充填法采场 |
), ArticleFig(id=1322164658451108629, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=EN, label=Table 2, caption=
Physical and mechanical parameters of ore body and surrounding rock around shaft 1#
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| 参数名称 | 辉长岩 | 沉凝灰岩 | 矿体 | 充填体 | 无底柱崩落法采场散体 | 有底柱崩落法采场散体 |
|---|
| 710~770 m水平 | 770~830 m水平 | 710~770 m水平 | 770~830 m水平 |
|---|
| 密度/(g/cm3) | 2.75 | 2.67 | 2.99 | 1.80 | 1.20 | 1.91 | 1.49 | 2.39 |
| 抗拉强度/MPa | 0.044 | 0.048 | 0.04 | 0.02 | 0.014 | 0.023 | 0.018 | 0.029 |
| 弹性模量/GPa | 6.00 | 4.71 | 5.88 | 2.30 | 2.35 | 3.76 | 2.94 | 4.70 |
| 泊松比 | 0.25 | 0.21 | 0.23 | 0.18 | 0.092 | 0.15 | 0.12 | 0.18 |
| 黏聚力/MPa | 5.29 | 2.18 | 4.35 | 0.11 | 1.74 | 2.78 | 2.17 | 3.48 |
| 内摩擦角/(°) | 28.93 | 23.13 | 28.9 | 35.0 | 11.57 | 18.52 | 14.47 | 23.14 |
), ArticleFig(id=1322164658568549142, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=CN, label=表2, caption=
1#竖井井筒周边矿体及围岩物理力学参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数名称 | 辉长岩 | 沉凝灰岩 | 矿体 | 充填体 | 无底柱崩落法采场散体 | 有底柱崩落法采场散体 |
|---|
| 710~770 m水平 | 770~830 m水平 | 710~770 m水平 | 770~830 m水平 |
|---|
| 密度/(g/cm3) | 2.75 | 2.67 | 2.99 | 1.80 | 1.20 | 1.91 | 1.49 | 2.39 |
| 抗拉强度/MPa | 0.044 | 0.048 | 0.04 | 0.02 | 0.014 | 0.023 | 0.018 | 0.029 |
| 弹性模量/GPa | 6.00 | 4.71 | 5.88 | 2.30 | 2.35 | 3.76 | 2.94 | 4.70 |
| 泊松比 | 0.25 | 0.21 | 0.23 | 0.18 | 0.092 | 0.15 | 0.12 | 0.18 |
| 黏聚力/MPa | 5.29 | 2.18 | 4.35 | 0.11 | 1.74 | 2.78 | 2.17 | 3.48 |
| 内摩擦角/(°) | 28.93 | 23.13 | 28.9 | 35.0 | 11.57 | 18.52 | 14.47 | 23.14 |
), ArticleFig(id=1322164658648240919, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=EN, label=Table 3, caption=
Common methods of shaft wall reinforcement
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | 基本原理 | 优点 | 缺点 |
|---|
| 井圈加固法 | 在竖井的井壁增加一圈或多圈加固结构,增强井壁的抗变形能力和抗压强度。 | 增强稳定性,施工简便,适应性强。 | 占用空间,施工周期较长,材料成本较高。 |
| 注浆加固法 | 将加固材料通过注浆孔注入到土层或岩层中,形成坚固的固结体,以提高土体或岩体的承载力、增强其稳定性。 | 施工灵活,速度较快,成本较低,适用范围广。 | 施工质量难以完全控制,设备技术要求高,深层加固的效果有限。 |
| 卸压槽法 | 在竖井周围开挖一定宽度和深度的槽沟,以减轻井壁所承受的地层压力,从而提高竖井的稳定性。 | 有效减小井壁所承受的地层压力,施工灵活且成本较低,适用范围较广。 | 受地质条件限制,施工难度较大,对周围环境影响较大。 |
| 套筒加固法 | 在原有竖井结构外部加设一层钢套筒,或者在竖井内壁设置钢套筒,以增强竖井的抗压、抗拉及抗剪强度。 | 施工简单,适应性强,加固效果好。 | 占用空间,成本较高,耐久性较低等。 |
), ArticleFig(id=1322164658740515608, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164645285188270, language=CN, label=表3, caption=
常见的井壁加固方法
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | 基本原理 | 优点 | 缺点 |
|---|
| 井圈加固法 | 在竖井的井壁增加一圈或多圈加固结构,增强井壁的抗变形能力和抗压强度。 | 增强稳定性,施工简便,适应性强。 | 占用空间,施工周期较长,材料成本较高。 |
| 注浆加固法 | 将加固材料通过注浆孔注入到土层或岩层中,形成坚固的固结体,以提高土体或岩体的承载力、增强其稳定性。 | 施工灵活,速度较快,成本较低,适用范围广。 | 施工质量难以完全控制,设备技术要求高,深层加固的效果有限。 |
| 卸压槽法 | 在竖井周围开挖一定宽度和深度的槽沟,以减轻井壁所承受的地层压力,从而提高竖井的稳定性。 | 有效减小井壁所承受的地层压力,施工灵活且成本较低,适用范围较广。 | 受地质条件限制,施工难度较大,对周围环境影响较大。 |
| 套筒加固法 | 在原有竖井结构外部加设一层钢套筒,或者在竖井内壁设置钢套筒,以增强竖井的抗压、抗拉及抗剪强度。 | 施工简单,适应性强,加固效果好。 | 占用空间,成本较高,耐久性较低等。 |
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