Article(id=1241409518316343702, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241409507583127593, articleNumber=null, orderNo=null, doi=10.3963/j.issn.1001-487X.2024.04.024, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1706457600000, receivedDateStr=2024-01-29, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1773904693439, onlineDateStr=2026-03-19, pubDate=1732982400000, pubDateStr=2024-12-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773904693439, onlineIssueDateStr=2026-03-19, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773904693439, creator=13701087609, updateTime=1773904693439, updator=13701087609, issue=Issue{id=1241409507583127593, tenantId=1146029695717560320, journalId=1240670690148397066, year='2024', volume='41', issue='4', pageStart='1', pageEnd='204', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773904690881, creator=13701087609, updateTime=1773904736091, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241409697262137710, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241409507583127593, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241409697262137711, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241409507583127593, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=187, endPage=196, ext={EN=ArticleExt(id=1241409520975532473, articleId=1241409518316343702, tenantId=1146029695717560320, journalId=1240670690148397066, language=EN, title=Optimization of Gas Tunnel Blasting Scheme and Study on Gas Transportation Law at Working Face, columnId=1240702076553065119, journalTitle=Blasting, columnName=BLASTING SAFETY, runingTitle=null, highlight=null, articleAbstract=
In order to study the gas diffusion-transport law and the influence of ventilation on the gas concentration of high gas tunnel after blasting, an optimization blasting scheme under gas conditions was carried out, and a gas diffusion-transport characteristic near the working face was investigated under both ventilated and unventilated conditions in a project. The study shows that the residual rate of the blast hole and the utilization rate of the blast hole are above 90%, and the over-excavation control effect is better with an expected blasting footage of 1.2 m and an uncoupling coefficient of 0.76. Under the condition of unventilated condition by numerical simulation, the gas accumulation near the arch top and the arch waist at the tunnel's working face is severe as the gas concentration is close to 30%. Meanwhile, the gas concentration is higher in the area 7 m away from the working surface, and the gas concentration gradient is smaller in the area beyond 7 m after the gas state is stabilized. The gas concentration can be reduced to the safe range around 30 days after ventilation. However, gas accumulation quickly occurs at the arch foot and the arch waist on the other side of the air duct, especially the gas accumulation at the arch foot is more prominent, and the gas concentration is close to 20%. There is a ventilation blind area at the arch foot of the same side of the air duct, and the gas accumulates in a small range as the concentration is about 5%. The monitoring and prevention of the above areas should be strengthened. The field measured gas concentration distribution and gas influence range are consistent with the simulation results, and the research results can provide a reference for similar gas tunnel blasting construction and ventilation optimization.
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TIAN Cheng-lin (1987-), male, Tai'an, Shandong province, lecturer, mainly engaged in teaching and research work on coal and rock power disaster prevention, tunnel ventilation and gas prevention and control, (E-mail)
skdtcl@126.com.
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为研究高瓦斯隧道在开挖爆破后的瓦斯扩散运移规律及通风对瓦斯浓度的影响,以某隧道工程为研究对象,对瓦斯条件下的隧道爆破方案进行了优化并在此基础上研究了在通风和未通风两种工况下的掌子面附近瓦斯扩散运移特征,获得了掌子面附近的瓦斯扩散运移规律。研究表明:当爆破预计进尺为1.2 m,不耦合系数设定为0.76时,炮孔残留率和炮孔利用率均在90%以上,超挖控制效果较好;数值模拟表明,未通风条件下,隧道掌子面处拱顶和拱腰附近瓦斯积聚现象严重,瓦斯浓度接近30%,瓦斯状态稳定后距离掌子面7 m范围内瓦斯浓度较高,7 m以外的区域瓦斯浓度变化梯度较小;在通风30 s左右瓦斯浓度均可降到安全范围内,但风筒异侧的拱脚和拱腰处容易发生瓦斯积聚现象,尤其是拱脚处的瓦斯积聚现较明显,瓦斯浓度接近20%,风筒同侧的拱脚处存在通风盲区,瓦斯小范围积聚,浓度在5%左右,应该加强对上述区域的监测和防治;现场实测瓦斯浓度分布及瓦斯影响范围与模拟结果较为一致,研究结果可为类似瓦斯隧道爆破施工及通风优化提供参考依据。
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田成林(1987-)男,山东泰安,讲师,主要从事煤岩动力灾害防治、隧道通风及瓦斯防治等方面的教学与科研工作,(E-mail)
skdtcl@126.com。
, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=7rljXDYGa9OmuDvsAHVOXw==, magXml=4yQ2qlq351fPRkBrHPJ28g==, pdfUrl=null, pdf=MQPnpRptFTGWSlcMWhm4eA==, pdfFileSize=10173072, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=wtu8glFWJQBpmxNUrZ9fQQ==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=LumAaZmcNjl9TKnD0hKbQg==, mapNumber=null, authorCompany=null, fund=null, authors=
王贺(1998-),男,山东济宁,硕士,从事隧道工程研究,(E-mail)572401784@qq.com。
WANG He (1998-), male, Jining, Shandong Province, Master degree, engaged in tunnel engineering research, (E-mail) 572401784@qq.com.
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1.School of Resources, Shandong University of Science and Technology, Tai'an 271000, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241409538159595581, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, authorId=1241409537752748077, language=CN, stringName=王贺, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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王贺(1998-),男,山东济宁,硕士,从事隧道工程研究,(E-mail)572401784@qq.com。
WANG He (1998-), male, Jining, Shandong Province, Master degree, engaged in tunnel engineering research, (E-mail) 572401784@qq.com.
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王贺(1998-),男,山东济宁,硕士,从事隧道工程研究,(E-mail)572401784@qq.com。
WANG He (1998-), male, Jining, Shandong Province, Master degree, engaged in tunnel engineering research, (E-mail) 572401784@qq.com.
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1.School of Resources, Shandong University of Science and Technology, Tai'an 271000, China
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1.山东科技大学 资源学院,泰安 271000
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1.School of Resources, Shandong University of Science and Technology, Tai'an 271000, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241409538881015908, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, authorId=1241409538612580441, language=CN, stringName=王清标, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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3.China Railway 14th Bureau Group Co., Ltd., Jinan 250000, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241409539715682440, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, authorId=1241409539464024186, language=CN, stringName=刘忠磊, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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4.China Railway 14th Bureau Group Tunnel Engineering Co., Ltd., Jinan 250000, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241409540231581860, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, authorId=1241409539854094482, language=CN, stringName=魏元津, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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4.中铁十四局集团 隧道工程有限公司,济南 250000)])])], keywords=[Keyword(id=1241409542739775708, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=EN, orderNo=1, keyword=gas tunnel), Keyword(id=1241409542840439008, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=EN, orderNo=2, keyword=blast optimization), Keyword(id=1241409542991433956, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=EN, orderNo=3, keyword=numerical simulation), Keyword(id=1241409543121457387, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=EN, orderNo=4, keyword=gas transport), Keyword(id=1241409543247286511, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=EN, orderNo=5, keyword=ventilation effect), Keyword(id=1241409543385698549, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=CN, orderNo=1, keyword=瓦斯隧道), Keyword(id=1241409543498944763, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=CN, orderNo=2, keyword=爆破优化), Keyword(id=1241409543607996672, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=CN, orderNo=3, keyword=数值模拟), Keyword(id=1241409543750603015, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=CN, orderNo=4, keyword=瓦斯运移), Keyword(id=1241409543884820747, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=CN, orderNo=5, keyword=通风效果)], refs=[Reference(id=1241409551564591481, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, doi=null, pmid=null, pmcid=null, year=2011, volume=28, issue=3, pageStart=34, pageEnd=35, 38, url=null, language=null, rfNumber=[1], rfOrder=0, authorNames=任高峰, 王威, 冯海昀, journalName=爆破, refType=null, unstructuredReference=任高峰, 王威, 冯海昀, 等. 融冠1号矿中深孔爆破参数优化研究[J].
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3.中铁十四局集团有限公司,济南 250000)]), AuthorCompany(id=1241409537475923994, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, xref=4., ext=[AuthorCompanyExt(id=1241409537480118300, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, companyId=1241409537475923994, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
4.China Railway 14th Bureau Group Tunnel Engineering Co., Ltd., Jinan 250000, China), AuthorCompanyExt(id=1241409537492701212, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, companyId=1241409537475923994, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
4.中铁十四局集团 隧道工程有限公司,济南 250000)]), AuthorCompany(id=1241409537643696163, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, xref=5., ext=[AuthorCompanyExt(id=1241409537652084772, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, companyId=1241409537643696163, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
5.China Railway Fourteenth Bureau Group Fourth Engineering Co., Ltd., Jinan 250000, China), AuthorCompanyExt(id=1241409537656279077, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, companyId=1241409537643696163, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
5.中铁十四局集团 第四工程有限公司,济南 250000)])], figs=[ArticleFig(id=1241409544069370130, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=EN, label=Fig. 1, caption=
Layout of the blast hole (unit: m), figureFileSmall=cWfjVIBWOZ0kplxp7ybCtQ==, figureFileBig=wtu8glFWJQBpmxNUrZ9fQQ==, tableContent=null), ArticleFig(id=1241409544170033431, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=CN, label=图1, caption=
炮眼布置图(单位:m), figureFileSmall=cWfjVIBWOZ0kplxp7ybCtQ==, figureFileBig=wtu8glFWJQBpmxNUrZ9fQQ==, tableContent=null), ArticleFig(id=1241409544392331550, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=EN, label=Fig. 2, caption=
Charge structure diagram, figureFileSmall=Llcwu1jp7oKZ8OJ4yVWsCA==, figureFileBig=l6B9vEwFSl5UGE4gWisuDA==, tableContent=null), ArticleFig(id=1241409544509772064, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=CN, label=图2, caption=
装药结构图, figureFileSmall=Llcwu1jp7oKZ8OJ4yVWsCA==, figureFileBig=l6B9vEwFSl5UGE4gWisuDA==, tableContent=null), ArticleFig(id=1241409544627212579, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=EN, label=Fig. 3, caption=
Effect comparison between the new plan and the original plan, figureFileSmall=2NmnQ95K+ybVk7yz+WRbzQ==, figureFileBig=P8SPKufn3dzhGZpQtr2LHg==, tableContent=null), ArticleFig(id=1241409544711098662, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=CN, label=图3, caption=
新方案与原方案效果对比图, figureFileSmall=2NmnQ95K+ybVk7yz+WRbzQ==, figureFileBig=P8SPKufn3dzhGZpQtr2LHg==, tableContent=null), ArticleFig(id=1241409544811761962, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=EN, label=Fig. 4, caption=
Schematic diagram of tunnel section, figureFileSmall=rb+6ZUMvw4m1wNbLdTd7Wg==, figureFileBig=HQvJzHQD1rhQdGoaTt/4KQ==, tableContent=null), ArticleFig(id=1241409546405597487, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=CN, label=图4, caption=
隧道断面示意图, figureFileSmall=rb+6ZUMvw4m1wNbLdTd7Wg==, figureFileBig=HQvJzHQD1rhQdGoaTt/4KQ==, tableContent=null), ArticleFig(id=1241409546472706354, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=EN, label=Fig. 5, caption=
Model meshing, figureFileSmall=2azfUSaFtQyjEA4Awus+fg==, figureFileBig=ODVJuZTH3bMAxW7P32JjZw==, tableContent=null), ArticleFig(id=1241409546590146872, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=CN, label=图5, caption=
模型网格划分, figureFileSmall=2azfUSaFtQyjEA4Awus+fg==, figureFileBig=ODVJuZTH3bMAxW7P32JjZw==, tableContent=null), ArticleFig(id=1241409546711781692, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=EN, label=Fig. 6, caption=
Diagram of gas sources (unit: m), figureFileSmall=1cPHffEy8ZTLeDCOBRT9Jg==, figureFileBig=7AESAeqIlUjChnPEVZ8MJQ==, tableContent=null), ArticleFig(id=1241409546820833600, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=CN, label=图6, caption=
瓦斯源项图(单位:m), figureFileSmall=1cPHffEy8ZTLeDCOBRT9Jg==, figureFileBig=7AESAeqIlUjChnPEVZ8MJQ==, tableContent=null), ArticleFig(id=1241409547068297543, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=EN, label=Fig. 7, caption=
Gas distribution cloud at 0.1 m away from the working face under unventilated conditions, figureFileSmall=AbkWyRwEBt+Yh3IstOYmBA==, figureFileBig=GSZFTbZDSofE2EEj1rDmmw==, tableContent=null), ArticleFig(id=1241409547168960839, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=CN, label=图7, caption=
不通风条件下距掌子面0.1 m处的瓦斯分布云图, figureFileSmall=AbkWyRwEBt+Yh3IstOYmBA==, figureFileBig=GSZFTbZDSofE2EEj1rDmmw==, tableContent=null), ArticleFig(id=1241409547257041226, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=EN, label=Fig. 8, caption=
Overhead view within 25 m of the working face at 1 h of gas overflow under two conditions, figureFileSmall=ZuzAAAYqzXtVQpRiTku3fw==, figureFileBig=YNGgygxI8eKw2gMB88dksw==, tableContent=null), ArticleFig(id=1241409547357704527, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=CN, label=图8, caption=
两种条件下瓦斯溢出1 h时隧道掌子面25 m范围内俯视图, figureFileSmall=ZuzAAAYqzXtVQpRiTku3fw==, figureFileBig=YNGgygxI8eKw2gMB88dksw==, tableContent=null), ArticleFig(id=1241409547458367823, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=EN, label=Fig. 9, caption=
Diagram of gas distribution at 0.1 m away from the working face under ventilation conditions, figureFileSmall=pRznp66Kglxupe+NzI4Glg==, figureFileBig=I4gVgY67ywsU8i5AGhZIOA==, tableContent=null), ArticleFig(id=1241409547550642514, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=CN, label=图9, caption=
通风条件下距掌子面0.1 m处的瓦斯分布云图, figureFileSmall=pRznp66Kglxupe+NzI4Glg==, figureFileBig=I4gVgY67ywsU8i5AGhZIOA==, tableContent=null), ArticleFig(id=1241409547642917207, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=EN, label=Fig. 10, caption=
Layout of cross-sectional measurement points, figureFileSmall=f77/lE9/2RoJsBcIXQ7RhQ==, figureFileBig=WQ4YWmAJxRu/dzKXVbgdeg==, tableContent=null), ArticleFig(id=1241409547760357720, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=CN, label=图10, caption=
横断面测点布置图, figureFileSmall=f77/lE9/2RoJsBcIXQ7RhQ==, figureFileBig=WQ4YWmAJxRu/dzKXVbgdeg==, tableContent=null), ArticleFig(id=1241409547911352664, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=EN, label=Fig. 11, caption=
Diagram of gas concentration monitoring data at the measurement point, figureFileSmall=G30qYnhaTFvteR69mNc9PA==, figureFileBig=dsSpdd7gdNwVn4YIngNfxw==, tableContent=null), ArticleFig(id=1241409547995238745, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=CN, label=图11, caption=
测点瓦斯浓度监测数据图, figureFileSmall=G30qYnhaTFvteR69mNc9PA==, figureFileBig=dsSpdd7gdNwVn4YIngNfxw==, tableContent=null), ArticleFig(id=1241409548225925467, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=EN, label=Fig. 12, caption=
Comparison between field data and simulated data, figureFileSmall=nOBocaf0cSjrn2wQlIKgJg==, figureFileBig=qHMRK6ddN/MPqliOObJDfw==, tableContent=null), ArticleFig(id=1241409548339171678, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=CN, label=图12, caption=
现场数据与模拟数据对比图, figureFileSmall=nOBocaf0cSjrn2wQlIKgJg==, figureFileBig=qHMRK6ddN/MPqliOObJDfw==, tableContent=null), ArticleFig(id=1241409548423057760, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=EN, label=Table 1, caption=
Orthocross mating scheme
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案 | 进尺/m | 装药直径/mm | 炮孔直径/mm | 不耦合系数 |
|---|
| 1 | 0.8 | 32 | 40 | 0.80 |
| 2 | 0.8 | 32 | 38 | 0.84 |
| 3 | 0.8 | 32 | 42 | 0.76 |
| 4 | 1.2 | 32 | 38 | 0.84 |
| 5 | 1.2 | 32 | 40 | 0.80 |
| 6 | 1.2 | 32 | 42 | 0.76 |
| 7 | 1.6 | 32 | 38 | 0.84 |
| 8 | 1.6 | 32 | 40 | 0.80 |
| 9 | 1.6 | 32 | 42 | 0.76 |
), ArticleFig(id=1241409548515332449, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=CN, label=表1, caption=
正交配比方案
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案 | 进尺/m | 装药直径/mm | 炮孔直径/mm | 不耦合系数 |
|---|
| 1 | 0.8 | 32 | 40 | 0.80 |
| 2 | 0.8 | 32 | 38 | 0.84 |
| 3 | 0.8 | 32 | 42 | 0.76 |
| 4 | 1.2 | 32 | 38 | 0.84 |
| 5 | 1.2 | 32 | 40 | 0.80 |
| 6 | 1.2 | 32 | 42 | 0.76 |
| 7 | 1.6 | 32 | 38 | 0.84 |
| 8 | 1.6 | 32 | 40 | 0.80 |
| 9 | 1.6 | 32 | 42 | 0.76 |
), ArticleFig(id=1241409548620190051, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=EN, label=Table 2, caption=
Statistics of blasting effect
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案 | 炮孔残留率/% | 炮孔利用率/% | 平均线性超(+)欠(-)挖/cm |
|---|
| 1 | 89 | 84 | +12.3 |
| 2 | 86 | 84 | +13.5 |
| 3 | 91 | 86 | +10.8 |
| 4 | 91 | 86 | +11.6 |
| 5 | 92 | 88 | +10.8 |
| 6 | 96 | 90 | +9.40 |
| 7 | 87 | 80 | +14.2 |
| 8 | 89 | 83 | +13.5 |
| 9 | 90 | 84 | +12.8 |
), ArticleFig(id=1241409548892819813, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=CN, label=表2, caption=
爆破效果统计
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案 | 炮孔残留率/% | 炮孔利用率/% | 平均线性超(+)欠(-)挖/cm |
|---|
| 1 | 89 | 84 | +12.3 |
| 2 | 86 | 84 | +13.5 |
| 3 | 91 | 86 | +10.8 |
| 4 | 91 | 86 | +11.6 |
| 5 | 92 | 88 | +10.8 |
| 6 | 96 | 90 | +9.40 |
| 7 | 87 | 80 | +14.2 |
| 8 | 89 | 83 | +13.5 |
| 9 | 90 | 84 | +12.8 |
), ArticleFig(id=1241409548989288807, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=EN, label=Table 3, caption=
Summary of cross-section cloud diagrams of gas overflow after 3 mins and 1 h without ventilation
, figureFileSmall=null, figureFileBig=null, tableContent=
| 时间/距离 | 1 m | 3 m | 5 m | 7 m | 8 m | 10 m |
|---|
| 3 min |  |  |  |  |  |  |
| 1 h |  |  |  |  |  |  |
), ArticleFig(id=1241409549085757800, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409518316343702, language=CN, label=表3, caption=
不通风情况下瓦斯溢出3 min和1 h后各断面云图汇总
, figureFileSmall=null, figureFileBig=null, tableContent=
| 时间/距离 | 1 m | 3 m | 5 m | 7 m | 8 m | 10 m |
|---|
| 3 min |  |  |  |  |  |  |
| 1 h |  |  |  |  |  |  |
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