Article(id=1322161998213796548, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322161751467078485, 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=1727280000000, receivedDateStr=2024-09-26, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793157584955, onlineDateStr=2026-10-28, pubDate=1758729600000, pubDateStr=2025-09-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793157584955, onlineIssueDateStr=2026-10-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793157584955, creator=13701087609, updateTime=1793157584955, updator=13701087609, issue=Issue{id=1322161751467078485, tenantId=1146029695717560320, journalId=1225396423026438145, year='2025', volume='45', issue='9', pageStart='1', pageEnd='314', issueExtLink='null', onlineDate='null', pubDate='1758729600000', pubDateStr='2025-09-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793157526127, creator='13701087609', updateTime=1793158877659, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322167420266074322, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322161751467078485, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322167420266074323, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322161751467078485, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=192, endPage=199, ext={EN=ArticleExt(id=1322161998469649093, articleId=1322161998213796548, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Application of Micro Rock Drilling Rig in the Mining of Sharply Inclined Thin Ore Veins, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In response to the problems of large mining range, ore dilution rate, low mechanization degree, and high safety risks in the shallow hole shrinkage mining method for sharply inclined thin ore veins in China, taking the occurrence conditions of a certain metal mine as the engineering application background, a mechanized mining process of shallow hole shrinkage mining method was proposed, and the mechanized mining idea of using micro rock drilling rigs to drill shallow holes upwards was determined. Firstly, based on the operating conditions of the experimental mining site, the design principles and main technical parameters of the micro rock drilling rig were determined. Secondly, the whole machine adopted the design scheme of modularization and 4-degree-of-freedom rock drilling positioning, and the passability, rock drilling positioning, machine stability, and in-situ steering drive system of the micro rock drilling rig were calculated and simulated in narrow and complex environments. The results show that the micro rock drilling rig can meet the practical engineering applications of narrow space transition driving, rock drilling positioning, and visual distance remote control operation in the mining of sharply inclined thin ore veins with shallow hole shrinkage method. The fastest single hole drilling speed can reach 2.2 m/min, the average of efficiency of artificialrock drilling is 1.35 m/min, and the drilling efficiency of equipment is 1.69 m/min, and the comprehensive rock drilling efficiency has been improved by more than 25% compared to manual rock drilling efficiency. At the same time, visual distance remote control can effectively reduce the number of operators, reduce mining amplitude, reduce safety risks, and improve comprehensive mining efficiency, which can provide equipment scheme reference for mechanized fransformation of steeply inclined thin veins with mining dip angle greater than 65° and pulse thickness less than 0.8 m.
, authors=Wugang YAN
1, Lianjun ZHANG
2, Feng WANG
1, Jianlong DAI
1, Qiancai YIN
1, Wei WEI
1, authorsList=Wugang YAN, Lianjun ZHANG, Feng WANG, Jianlong DAI, Qiancai YIN, Wei WEI, 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=1322162002634593006, articleId=1322161998213796548, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=微型凿岩台车在急倾斜薄矿脉开采中的应用研究, columnId=1226462295946085268, journalTitle=矿业研究与开发, columnName=矿山机电与矿业智能化, runingTitle=null, highlight=null, articleAbstract=
针对国内急倾斜薄矿脉浅孔留矿采矿法开采存在采幅过大、矿石贫化率高、机械化程度低、安全风险高等问题,以国内某金属矿赋存条件为工程应用背景,提出了浅孔留矿法机械化开采工艺,确定了采用微型凿岩台车上向浅孔凿岩的机械化开采思路。首先,基于试验采场的作业条件,确定了微型凿岩台车的设计原则和主要技术参数;其次,整机采用模块化和4个自由度凿岩定位的设计方案,对微型凿岩台车狭小复杂环境下的通过性、凿岩定位、整机稳定性和原地转向驱动系统进行了计算和模拟分析。结果表明,微型凿岩台车可满足急倾斜薄矿脉浅孔留矿法开采狭小空间转场行驶、凿岩定位及视距遥控作业的实际工程应用,单孔进尺速度最快可达2.2 m/min,人工凿岩平均效率为1.35 m/min,设备凿岩效率为1.69 m/min,综合凿岩效率比人工凿岩效率提升25%以上,同时,通过视距遥控可有效减少作业人数、减小采幅、降低安全风险和提升综合开采效率,为开采倾角>65°、脉厚<0.8 m的急倾斜薄矿脉机械化改选提供装备方案参考。
, authors=颜武刚
1, 张连军
2, 王锋
1, 代建龙
1, 尹千才
1, 未崴
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1.湖南创远高新机械有限责任公司,湖南 长沙 410205, bio={"content":"
颜武刚(1985—),男,湖南长沙人,硕士,高级工程师,主要从事智能矿山装备研究。E-mail:yanwugang1985@163.com
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颜武刚(1985—),男,湖南长沙人,硕士,高级工程师,主要从事智能矿山装备研究。E-mail:yanwugang1985@163.com
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7(4):407-411., articleTitle=Investigation into in-situ steering for crawler cranes under simplified ground, refAbstract=null)], funds=[Fund(id=1322162096893178333, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, awardId=2022YFC2903805, language=CN, fundingSource=国家重点研发计划项目(2022YFC2903805), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1322162087149810058, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, xref=1., ext=[AuthorCompanyExt(id=1322162087158198667, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, companyId=1322162087149810058, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.Hunan Chuangyuan High-tech Machinery Co., Ltd., Changsha, Hunan 410205, China), AuthorCompanyExt(id=1322162087166587276, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, companyId=1322162087149810058, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.湖南创远高新机械有限责任公司,湖南 长沙 410205)]), AuthorCompany(id=1322162087229501837, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, xref=2., ext=[AuthorCompanyExt(id=1322162087237890446, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, companyId=1322162087229501837, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.China Mining Products Safety Approval and Certification Center, Beijing 100013, China), AuthorCompanyExt(id=1322162087250473359, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, companyId=1322162087229501837, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.安标国家矿用产品安全标志中心有限公司,北京 100013)])], figs=[ArticleFig(id=1322162091860013497, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=EN, label=Fig.1, caption=
Mechanized mining technology of shallow hole shrinkage mining method, figureFileSmall=Hh92zTimBn802SpcroKsPg==, figureFileBig=MceP4u3wdtOePip/HEMj0Q==, tableContent=null), ArticleFig(id=1322162091935510970, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=CN, label=图1, caption=
浅孔留矿采矿法机械化开采工艺, figureFileSmall=Hh92zTimBn802SpcroKsPg==, figureFileBig=MceP4u3wdtOePip/HEMj0Q==, tableContent=null), ArticleFig(id=1322162092149420475, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=EN, label=Fig.2, caption=
Structure of micro rock drilling rig, figureFileSmall=zJoejykEnTCjK/GRDFm0iQ==, figureFileBig=cIhi8ma0PQBFJX/uqLHoeA==, tableContent=null), ArticleFig(id=1322162092262666684, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=CN, label=图2, caption=
微型凿岩台车的组成结构, figureFileSmall=zJoejykEnTCjK/GRDFm0iQ==, figureFileBig=cIhi8ma0PQBFJX/uqLHoeA==, tableContent=null), ArticleFig(id=1322162092526907837, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=EN, label=Fig.3, caption=
Simulation of passability of micro rock drilling rig, figureFileSmall=mxU90rY4X3hj4+9fbLH4lg==, figureFileBig=aRP/OgT7EK7IsSnrZai5oQ==, tableContent=null), ArticleFig(id=1322162092610793918, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=CN, label=图3, caption=
微型凿岩台车通过性模拟, figureFileSmall=mxU90rY4X3hj4+9fbLH4lg==, figureFileBig=aRP/OgT7EK7IsSnrZai5oQ==, tableContent=null), ArticleFig(id=1322162092724040127, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=EN, label=Fig.4, caption=
Layout method of rectangular+spaced hole (unit:mm), figureFileSmall=1LleW4RqK5VQQ8KTV0Bv1A==, figureFileBig=AuZaB6pbcQl9FRCbzaLxLw==, tableContent=null), ArticleFig(id=1322162092950532544, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=CN, label=图4, caption=
矩形+间隔空孔布孔方式(单位:mm), figureFileSmall=1LleW4RqK5VQQ8KTV0Bv1A==, figureFileBig=AuZaB6pbcQl9FRCbzaLxLw==, tableContent=null), ArticleFig(id=1322162094519202241, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=EN, label=Fig.5, caption=
Four degrees of freedom of micro rock drilling rig, figureFileSmall=VOr8Y/bCa5MWhJA7XCfT1g==, figureFileBig=iwGq98zonWpHouY//Cdyow==, tableContent=null), ArticleFig(id=1322162094603088322, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=CN, label=图5, caption=
微型凿岩台车的4个自由度, figureFileSmall=VOr8Y/bCa5MWhJA7XCfT1g==, figureFileBig=iwGq98zonWpHouY//Cdyow==, tableContent=null), ArticleFig(id=1322162094699557315, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=EN, label=Fig.6, caption=
Complete drilling of 2 boreholes in one location, figureFileSmall=GI+kYQpmy1iVOpDXyZ6Asg==, figureFileBig=iddR/+6Swj16VWEU5naMqw==, tableContent=null), ArticleFig(id=1322162095035101636, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=CN, label=图6, caption=
一次定位完成2个炮孔钻凿, figureFileSmall=GI+kYQpmy1iVOpDXyZ6Asg==, figureFileBig=iddR/+6Swj16VWEU5naMqw==, tableContent=null), ArticleFig(id=1322162095114793413, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=EN, label=Fig.7, caption=
Scope of vertical hole drilling operation, figureFileSmall=NhhzoUACl47QG+l3FQmF8g==, figureFileBig=QmnzMQgzCFHtXYTN6qMbCQ==, tableContent=null), ArticleFig(id=1322162095177707974, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=CN, label=图7, caption=
垂直孔钻凿作业范围, figureFileSmall=NhhzoUACl47QG+l3FQmF8g==, figureFileBig=QmnzMQgzCFHtXYTN6qMbCQ==, tableContent=null), ArticleFig(id=1322162095265788359, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=EN, label=Fig.8, caption=
Stability analysis of flat driving, figureFileSmall=Pueaz9KkDElJXGzvptNKbQ==, figureFileBig=4/48kBM3G8t2+Njy7zBkYA==, tableContent=null), ArticleFig(id=1322162095341285832, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=CN, label=图8, caption=
平地行驶稳定性分析, figureFileSmall=Pueaz9KkDElJXGzvptNKbQ==, figureFileBig=4/48kBM3G8t2+Njy7zBkYA==, tableContent=null), ArticleFig(id=1322162095404200393, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=EN, label=Fig.9, caption=
Stability analysis of driving on a 16° slope, figureFileSmall=KhNErJfLSY8UI0Fi+OsFpg==, figureFileBig=rp0OSwjRYkPOyqMAzP8E/w==, tableContent=null), ArticleFig(id=1322162095462920650, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=CN, label=图9, caption=
16°坡行驶稳定性分析, figureFileSmall=KhNErJfLSY8UI0Fi+OsFpg==, figureFileBig=rp0OSwjRYkPOyqMAzP8E/w==, tableContent=null), ArticleFig(id=1322162095555195339, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=EN, label=Fig.10, caption=
Stability analysis of maximum front swing and side swing operations, figureFileSmall=lrOIAzY/y+kz70aLII67Gg==, figureFileBig=ON3WgHID/kmn1dkHvNHU0A==, tableContent=null), ArticleFig(id=1322162095630692812, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=CN, label=图10, caption=
最大前摆及侧摆作业稳定性分析, figureFileSmall=lrOIAzY/y+kz70aLII67Gg==, figureFileBig=ON3WgHID/kmn1dkHvNHU0A==, tableContent=null), ArticleFig(id=1322162095697801677, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=EN, label=Fig.11, caption=
Schematic of track chassis turning in place, figureFileSmall=kARY6x5t/8ScIMOft5f7kw==, figureFileBig=/y0znfEXdloparwWK597qw==, tableContent=null), ArticleFig(id=1322162095760716238, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=CN, label=图11, caption=
履带底盘原地转向示意, figureFileSmall=kARY6x5t/8ScIMOft5f7kw==, figureFileBig=/y0znfEXdloparwWK597qw==, tableContent=null), ArticleFig(id=1322162095832019407, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=EN, label=Fig.12, caption=
Hydraulic system circuit of micro rock drilling rig, figureFileSmall=VRAp2pmN8Tbt+nvwL6hDuw==, figureFileBig=Aw1X9N1BS/jr+k2sgGYJQQ==, tableContent=null), ArticleFig(id=1322162095899128272, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=CN, label=图12, caption=
微型凿岩台车液压系统回路, figureFileSmall=VRAp2pmN8Tbt+nvwL6hDuw==, figureFileBig=Aw1X9N1BS/jr+k2sgGYJQQ==, tableContent=null), ArticleFig(id=1322162095953654225, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=EN, label=Fig.13, caption=
Auxiliary hydraulic circuit, figureFileSmall=/aWxGQjU2QBIBwM/VmPM7A==, figureFileBig=N9zLArpV47LYGDdgmV5/Qw==, tableContent=null), ArticleFig(id=1322162096029151698, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=CN, label=图13, caption=
行走辅助液压回路, figureFileSmall=/aWxGQjU2QBIBwM/VmPM7A==, figureFileBig=N9zLArpV47LYGDdgmV5/Qw==, tableContent=null), ArticleFig(id=1322162096117232083, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=EN, label=Fig.14, caption=
On site application of micro rock drilling rig, figureFileSmall=Y4Gt54BLlDyBG2m3DI3siA==, figureFileBig=P7eqp5/BoJ2t5xkJSu5sPQ==, tableContent=null), ArticleFig(id=1322162096184340948, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=CN, label=图14, caption=
微型凿岩台车现场应用, figureFileSmall=Y4Gt54BLlDyBG2m3DI3siA==, figureFileBig=P7eqp5/BoJ2t5xkJSu5sPQ==, tableContent=null), ArticleFig(id=1322162096264032725, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=EN, label=Table 1, caption=
Main technical parameters of micro rock drilling rig
, figureFileSmall=null, figureFileBig=null, tableContent=
| 长度/m | 宽度/m | 高度/m | 坡度/(°) | 速度/(km/h) |
|---|
| 3.5 | 0.8 | 1.8 | 16 | 2.5 |
), ArticleFig(id=1322162096335335894, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=CN, label=表1, caption=
微型凿岩台车主要技术参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 长度/m | 宽度/m | 高度/m | 坡度/(°) | 速度/(km/h) |
|---|
| 3.5 | 0.8 | 1.8 | 16 | 2.5 |
), ArticleFig(id=1322162096415027671, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=EN, label=Table 2, caption=
Design parameters of hydraulic manipulator
, figureFileSmall=null, figureFileBig=null, tableContent=
| 质量G/N | 马达排量q/(mL/r) | 马达额定工作压力P/MPa | 驱动链轮基圆半径r/mm | 轨距B/mm | 履带接地长度L/m | 履带板宽b/mm | 马达减速机速比i | 马达机械效率ηm | 减速机机械效率ηr | 驱动链轮机械效率ηc | 履带阻力系数μ |
|---|
| 36 000 | 18 | 21 | 166.5 | 620 | 1.2 | 180 | 45.2 | 0.95 | 0.91 | 0.85 | 0.8 |
), ArticleFig(id=1322162096494719448, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=CN, label=表2, caption=
行驶系统设计参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 质量G/N | 马达排量q/(mL/r) | 马达额定工作压力P/MPa | 驱动链轮基圆半径r/mm | 轨距B/mm | 履带接地长度L/m | 履带板宽b/mm | 马达减速机速比i | 马达机械效率ηm | 减速机机械效率ηr | 驱动链轮机械效率ηc | 履带阻力系数μ |
|---|
| 36 000 | 18 | 21 | 166.5 | 620 | 1.2 | 180 | 45.2 | 0.95 | 0.91 | 0.85 | 0.8 |
), ArticleFig(id=1322162096561828313, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=EN, label=Table 3, caption=
Factory test record form
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 支腿保压性能/mm | 行走速度/(km/h) | 推进力/kN | 冲击压力/MPa | 回转压力/MPa | 静态制动力/kN | 原地转向半径/m |
|---|
| 技术要求 | 额定负载作用下活塞杆的移动量在6 h内≤4 mm | Ⅰ档:1.5±0.1 | 15±0.2 | ≤14.5 | ≤4 | ≥8.54 | ≤2 |
| Ⅱ档:2.2±0.2 |
| 测试结果 | 2 mm | Ⅰ档:1.47 | 14.8 | 14.16 | 3.92 | 14.1 | 1.997 |
| Ⅱ档:2.22 |
), ArticleFig(id=1322162096628937178, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=CN, label=表3, caption=
微型凿岩台车性能测试结果对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 支腿保压性能/mm | 行走速度/(km/h) | 推进力/kN | 冲击压力/MPa | 回转压力/MPa | 静态制动力/kN | 原地转向半径/m |
|---|
| 技术要求 | 额定负载作用下活塞杆的移动量在6 h内≤4 mm | Ⅰ档:1.5±0.1 | 15±0.2 | ≤14.5 | ≤4 | ≥8.54 | ≤2 |
| Ⅱ档:2.2±0.2 |
| 测试结果 | 2 mm | Ⅰ档:1.47 | 14.8 | 14.16 | 3.92 | 14.1 | 1.997 |
| Ⅱ档:2.22 |
), ArticleFig(id=1322162096687657435, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=EN, label=Table 4, caption=
Comparative analysis of technical indicators before and after mining process optimization
, figureFileSmall=null, figureFileBig=null, tableContent=
| 结果对比 | 凿岩效率/(m/min) | 凿岩方式 | 作业人数 | 采幅/m | 安全风险 |
|---|
| 优化前 | 1.2~1.5 | 人工空区风动凿岩 | ≥2 | ≥1.8 | 高风险 |
| 优化后 | 2.2 | 视距遥控凿岩 | 1 | 1.2 | 低风险 |
), ArticleFig(id=1322162096754766300, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322161998213796548, language=CN, label=表4, caption=
采矿工艺优化前后技术指标对比分析
, figureFileSmall=null, figureFileBig=null, tableContent=
| 结果对比 | 凿岩效率/(m/min) | 凿岩方式 | 作业人数 | 采幅/m | 安全风险 |
|---|
| 优化前 | 1.2~1.5 | 人工空区风动凿岩 | ≥2 | ≥1.8 | 高风险 |
| 优化后 | 2.2 | 视距遥控凿岩 | 1 | 1.2 | 低风险 |
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