Article(id=1241769333135839482, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241769329201578292, articleNumber=null, orderNo=null, doi=10.3963/j.issn.1001-487X.2024.01.010, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1667491200000, receivedDateStr=2022-11-04, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1773990479978, onlineDateStr=2026-03-20, pubDate=1709222400000, pubDateStr=2024-03-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773990479978, onlineIssueDateStr=2026-03-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773990479978, creator=13701087609, updateTime=1773990479978, updator=13701087609, issue=Issue{id=1241769329201578292, tenantId=1146029695717560320, journalId=1240670690148397066, year='2024', volume='41', issue='1', pageStart='1', pageEnd='220', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773990479040, creator=13701087609, updateTime=1773992264087, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241776816298459159, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241769329201578292, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241776816298459160, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241769329201578292, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=67, endPage=76, ext={EN=ArticleExt(id=1241769334427685150, articleId=1241769333135839482, tenantId=1146029695717560320, journalId=1240670690148397066, language=EN, title=Optimization and Application of Uncoupled Charge Coefficient for Directional Blasting of Sandstone Roadway Roof, columnId=1240702072862069231, journalTitle=Blasting, columnName=BLASTING IN ORE AND ROCK, runingTitle=null, highlight=null, articleAbstract=
Shaped charge blasting technology plays an important role in goaf retaining roadway engineering, and the charge structure is always a hot and difficult issue in current discussions. At present, there is no clear indicator of the pre-splitting charge length of goaf-retaining roof. Taking the track groove of No. 2-11031 working face of the Mengjin Coal Mine as the research background, an isometric charge pre-splitting technology is proposed. Firstly, a three-dimensional directional shaped charge blasting model is established by LS-DYNA numerical simulation software to determine the optimal charge structure. By changing the axial cylinder length and taking the crack propagation length and stress decay rate as the analysis indexes, the numerical simulation shows that the radial slit distance is about 40 cm, and the axial slit distance is about 80 cm per meter when the axial uncoupling coefficient is between 1.25 and 1.7. Additionally, the slit distance is respectively increased by 25% and 12.5% compared with the axial uncoupling coefficient between 2 and 3. Furthermore, the energy utilization is the most reasonable as the stress attenuation rates are all less than 1 when the axial uncoupling coefficients are between 1.25 and 3. Finally, a roof directional blasting experiment with an axial uncoupling coefficient α=1.25~2 was carried out on the track groove of No. 2-11031 working face of the Mengjin Coal Mine. After the pre-split blasting, the middle line of the two holes was drilled and peeping. It is found that the cracks along the cutting seam direction between the two holes have been completely connected, the cracks are smooth, and the field application effect is good. Considering economy and safety, the uncoupling coefficient α=1.7 is the best. The results show that the isometric charging structure can replace the traditional three-stage charging structure.
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聚能爆破技术在沿空留巷工程项目中有着重要的作用,装药结构问题一直是目前讨论的热点及难点。对于目前沿空留巷顶板超前预裂装药长度尚没有明确的指标情况下,以孟津煤矿二2-11031工作面轨道顺槽为研究背景,提出了等长装药顶板预裂技术,为明确最优装药结构,本文通过LS-DYNA数值模拟软件建立了三维定向聚能爆破模型,改变轴向药柱的长度,以裂纹扩展长度和应力衰减速率为分析指标,通过数值模拟可知,轴向不耦合系数在1.25~1.7之间径向切缝距离约为40 cm,轴向切缝距离约为80 cm,相比轴向不耦合系数在2~3之间,切缝距离分别提高了25%和12.5%;轴向不耦合系数在1.25~3之间,应力衰减速度均小于1,能量利用最为合理;将轴向不耦合系数α=1.25~2的装药结构在孟津煤矿二2-11031工作面轨道顺槽进行顶板定向爆破实验,对预裂爆破后的两炮孔中线进行钻孔窥视,观察到4种爆破方案,两炮孔之间沿切缝方向裂纹均已经完全贯通,裂纹光滑平整,现场应用效果良好,结合经济性、安全性两方面考虑,不耦合系数α=1.7为最优;研究结果表明等长装药结构可以代替传统的三段式装药结构。研究结果可以为今后类似的项目提供参考。
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, authorsList=刘少伟, 隋纪胜, 贺德印, 付孟雄, 何伟, 李震)}, authors=[Author(id=1241769345710363561, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=lswxll@126.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241769347383890869, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, authorId=1241769345710363561, language=EN, stringName=Shao-wei LIU, firstName=Shao-wei, middleName=null, lastName=LIU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1.School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China
2.Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Henan Province, Jiaozuo 454000, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241769347484554177, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, authorId=1241769345710363561, language=CN, stringName=刘少伟, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1.河南理工大学 能源科学与工程学院,焦作 454000
2.煤炭安全生产与清洁高效利用省部共建协同创新中心,焦作 454000, bio={"content":"
刘少伟(1977-),男,教授、博士生导师,(E-mail)lswxll@126.com。
LIU Shao-wei (1977-), male, professor, doctoral supervisor, (E-mail) lswxll@126.com.
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刘少伟(1977-),男,教授、博士生导师,(E-mail)lswxll@126.com。
LIU Shao-wei (1977-), male, professor, doctoral supervisor, (E-mail) lswxll@126.com.
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2.煤炭安全生产与清洁高效利用省部共建协同创新中心,焦作 454000)])]), Author(id=1241769347593606094, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, orderNo=1, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=1017561351@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241769347711046616, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, authorId=1241769347593606094, language=EN, stringName=Ji-sheng SUI, firstName=Ji-sheng, middleName=null, lastName=SUI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241769347853652964, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, authorId=1241769347593606094, language=CN, stringName=隋纪胜, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China), AuthorCompanyExt(id=1241769345223824268, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, companyId=1241769345207047048, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.河南理工大学 能源科学与工程学院,焦作 454000)])]), Author(id=1241769347971093486, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241769348109505528, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, authorId=1241769347971093486, language=EN, stringName=De-yin HE, firstName=De-yin, middleName=null, lastName=HE, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241769348260499461, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, authorId=1241769347971093486, language=CN, stringName=贺德印, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.河南理工大学 能源科学与工程学院,焦作 454000, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1241769345207047048, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, xref=1., ext=[AuthorCompanyExt(id=1241769345215435657, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, companyId=1241769345207047048, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China), AuthorCompanyExt(id=1241769345223824268, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, companyId=1241769345207047048, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.河南理工大学 能源科学与工程学院,焦作 454000)])]), Author(id=1241769348394717201, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241769348566683680, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, authorId=1241769348394717201, language=EN, stringName=Meng-xiong FU, firstName=Meng-xiong, middleName=null, lastName=FU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1.School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241769348675735592, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, authorId=1241769348394717201, language=CN, stringName=付孟雄, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.河南理工大学 能源科学与工程学院,焦作 454000, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1241769345207047048, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, xref=1., ext=[AuthorCompanyExt(id=1241769345215435657, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, companyId=1241769345207047048, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China), AuthorCompanyExt(id=1241769345223824268, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, companyId=1241769345207047048, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.河南理工大学 能源科学与工程学院,焦作 454000)])]), Author(id=1241769348818341941, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, orderNo=4, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241769348952559677, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, authorId=1241769348818341941, language=EN, stringName=Wei HE, firstName=Wei, middleName=null, lastName=HE, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, address=
3.Yima Coal Group Mengjin Mine Co,. LTD., Luoyang 471100, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241769349070000195, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, authorId=1241769348818341941, language=CN, stringName=何伟, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, address=
3.义马煤业集团孟津矿有限责任公司,洛阳 471100, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1241769345517425564, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, xref=3., ext=[AuthorCompanyExt(id=1241769345530008478, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, companyId=1241769345517425564, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3.义马煤业集团孟津矿有限责任公司,洛阳 471100)])]), Author(id=1241769349162274894, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, orderNo=5, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241769349246160980, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, authorId=1241769349162274894, language=EN, stringName=Zhen LI, firstName=Zhen, middleName=null, lastName=LI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, address=
3.Yima Coal Group Mengjin Mine Co,. LTD., Luoyang 471100, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241769349371990106, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, authorId=1241769349162274894, language=CN, stringName=李震, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, address=
3.义马煤业集团孟津矿有限责任公司,洛阳 471100, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1241769345517425564, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, xref=3., ext=[AuthorCompanyExt(id=1241769345530008478, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, companyId=1241769345517425564, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2014., articleTitle=聚能爆破煤体增透及裂隙生成机理研究, refAbstract=null), Reference(id=1241769363137696269, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, doi=null, pmid=null, pmcid=null, year=2014, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=[16], rfOrder=28, authorNames=Lu Peng-fei, journalName=null, refType=null, unstructuredReference=
Lu Peng-fei. Research on anti-reflection and Fracture Formation Mechanism of shaped charge blasting coal[D]. Beijing: China University of Mining and Technology (Beijing),
2014. (in Chinese), articleTitle=Research on anti-reflection and Fracture Formation Mechanism of shaped charge blasting coal, refAbstract=null)], funds=[Fund(id=1241769359123747254, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, awardId=52074102, language=EN, fundingSource=National Natural Science Foundation of China(52074102), fundOrder=null, country=null), Fund(id=1241769359207633338, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, awardId=52074102, language=CN, fundingSource=国家自然科学基金资助项目(52074102), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1241769345207047048, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, xref=1., ext=[AuthorCompanyExt(id=1241769345215435657, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, companyId=1241769345207047048, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China), AuthorCompanyExt(id=1241769345223824268, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, companyId=1241769345207047048, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.河南理工大学 能源科学与工程学院,焦作 454000)]), AuthorCompany(id=1241769345395790735, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, xref=2., ext=[AuthorCompanyExt(id=1241769345408373651, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, companyId=1241769345395790735, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Henan Province, Jiaozuo 454000, China), AuthorCompanyExt(id=1241769345420956565, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, companyId=1241769345395790735, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.煤炭安全生产与清洁高效利用省部共建协同创新中心,焦作 454000)]), AuthorCompany(id=1241769345517425564, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, xref=3., ext=[AuthorCompanyExt(id=1241769345530008478, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, companyId=1241769345517425564, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.Yima Coal Group Mengjin Mine Co,. LTD., Luoyang 471100, China), AuthorCompanyExt(id=1241769345550979999, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, companyId=1241769345517425564, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.义马煤业集团孟津矿有限责任公司,洛阳 471100)])], figs=[ArticleFig(id=1241769352157008044, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=EN, label=Fig. 1, caption=
Geological histogram and tangent design, figureFileSmall=trEQOk2iTW7zNHBTTwoKgA==, figureFileBig=98ibCXvtdPa4paXNjjp5Zg==, tableContent=null), ArticleFig(id=1241769352278642866, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=CN, label=图1, caption=
地质柱状图及切线设计图, figureFileSmall=trEQOk2iTW7zNHBTTwoKgA==, figureFileBig=98ibCXvtdPa4paXNjjp5Zg==, tableContent=null), ArticleFig(id=1241769352597409989, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=EN, label=Fig. 2, caption=
Structure and crack effect of traditional charge, figureFileSmall=Oaay/+H6x5nlh97lJSQsvw==, figureFileBig=uoZzXwl1FoWjzQ1l3Phmmg==, tableContent=null), ArticleFig(id=1241769352719044811, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=CN, label=图2, caption=
传统装药结构及裂纹效果, figureFileSmall=Oaay/+H6x5nlh97lJSQsvw==, figureFileBig=uoZzXwl1FoWjzQ1l3Phmmg==, tableContent=null), ArticleFig(id=1241769352823902416, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=EN, label=Fig. 3, caption=
Establishment of mechanical model, figureFileSmall=55IL591ljDzhZuRddHCkeA==, figureFileBig=9U6zkAyJuZj+SJYJ5WApDw==, tableContent=null), ArticleFig(id=1241769352958120157, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=CN, label=图3, caption=
力学模型建立, figureFileSmall=55IL591ljDzhZuRddHCkeA==, figureFileBig=9U6zkAyJuZj+SJYJ5WApDw==, tableContent=null), ArticleFig(id=1241769353088143587, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=EN, label=Fig. 4, caption=
Blasting model and charging structure diagram, figureFileSmall=TJfclRrnp0B/i7Z4qzV4xw==, figureFileBig=YuRjcit2Wg4kn8i08da9og==, tableContent=null), ArticleFig(id=1241769353176223978, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=CN, label=图4, caption=
爆破模型及装药结构图, figureFileSmall=TJfclRrnp0B/i7Z4qzV4xw==, figureFileBig=YuRjcit2Wg4kn8i08da9og==, tableContent=null), ArticleFig(id=1241769353318830318, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=EN, label=Fig. 5, caption=
Schematic diagram of uncoupled charge, figureFileSmall=E4rk/918JUdvOaGLIcgnrw==, figureFileBig=kpBry7QUp5FLHHHcGIyelw==, tableContent=null), ArticleFig(id=1241769353427882231, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=CN, label=图5, caption=
不耦合装药示意图, figureFileSmall=E4rk/918JUdvOaGLIcgnrw==, figureFileBig=kpBry7QUp5FLHHHcGIyelw==, tableContent=null), ArticleFig(id=1241769353549517051, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=EN, label=Fig. 6, caption=
Peak value of external circumferential stress in slotted pipe, figureFileSmall=6oGW4l5Afi/Y7L+P+2C/5Q==, figureFileBig=mVJGwpaYI4mPDR+wDCiOdw==, tableContent=null), ArticleFig(id=1241769353700512001, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=CN, label=图6, caption=
聚能管外环向应力峰值, figureFileSmall=6oGW4l5Afi/Y7L+P+2C/5Q==, figureFileBig=mVJGwpaYI4mPDR+wDCiOdw==, tableContent=null), ArticleFig(id=1241769353817952522, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=EN, label=Fig. 7, caption=
Peak time of external circumferential stress of slotted pipe, figureFileSmall=C75W4p3zVAsSejCBm568Gw==, figureFileBig=KEm8BcVxu2u3f4jVpBh2Iw==, tableContent=null), ArticleFig(id=1241769353906032913, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=CN, label=图7, caption=
聚能管外环向应力峰值时刻, figureFileSmall=C75W4p3zVAsSejCBm568Gw==, figureFileBig=KEm8BcVxu2u3f4jVpBh2Iw==, tableContent=null), ArticleFig(id=1241769354010890519, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=EN, label=Fig. 8, caption=
Stress evolution and crack propagation, figureFileSmall=35w07LF4Wt8AUm+NLlPa2Q==, figureFileBig=mHmFEiLZ85xZw1cEclDv6g==, tableContent=null), ArticleFig(id=1241769354128331038, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=CN, label=图8, caption=
应力演化云图, figureFileSmall=35w07LF4Wt8AUm+NLlPa2Q==, figureFileBig=mHmFEiLZ85xZw1cEclDv6g==, tableContent=null), ArticleFig(id=1241769354237382949, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=EN, label=Fig. 9, caption=
Fitting curve of stress attenuation, figureFileSmall=uo/t0Cawdp1CjIYHclhlqQ==, figureFileBig=GGHb9lhCfKM8GRSYSNKGfA==, tableContent=null), ArticleFig(id=1241769354426126638, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=CN, label=图9, caption=
应力衰减拟合曲线, figureFileSmall=uo/t0Cawdp1CjIYHclhlqQ==, figureFileBig=GGHb9lhCfKM8GRSYSNKGfA==, tableContent=null), ArticleFig(id=1241769354514207026, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=EN, label=Fig. 10, caption=
Curve of slit distance and drilling depth (unit: cm), figureFileSmall=go8UVYWVQb8qNThlHpSY3A==, figureFileBig=ZEoQSUnC3gtX0y5zv0btHg==, tableContent=null), ArticleFig(id=1241769354619064633, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=CN, label=图10, caption=
切缝距离与钻孔深度曲线(单位:cm), figureFileSmall=go8UVYWVQb8qNThlHpSY3A==, figureFileBig=ZEoQSUnC3gtX0y5zv0btHg==, tableContent=null), ArticleFig(id=1241769354715533633, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=EN, label=Fig. 11, caption=
Energy flows in the direction of the tube, figureFileSmall=EqoD1fpYAyOmB8LLqlvDdA==, figureFileBig=XLt9uEpIWy3y747l+487aA==, tableContent=null), ArticleFig(id=1241769356204511557, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=CN, label=图11, caption=
能量沿管中流动, figureFileSmall=EqoD1fpYAyOmB8LLqlvDdA==, figureFileBig=XLt9uEpIWy3y747l+487aA==, tableContent=null), ArticleFig(id=1241769356317757772, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=EN, label=Fig. 12, caption=
Charging structure diagram, figureFileSmall=hG7YNfssJPkgGzH4H7V/4Q==, figureFileBig=e0dHVo1M5u1TLAJx2N6qfg==, tableContent=null), ArticleFig(id=1241769356435198288, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=CN, label=图12, caption=
装药结构图, figureFileSmall=hG7YNfssJPkgGzH4H7V/4Q==, figureFileBig=e0dHVo1M5u1TLAJx2N6qfg==, tableContent=null), ArticleFig(id=1241769356548444504, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=EN, label=Fig. 13, caption=
Peep results of α=1.25, figureFileSmall=aooE2Yuju3bKo0/u14FcAA==, figureFileBig=CtOr4HaXC+e/Cr1xg9sdhA==, tableContent=null), ArticleFig(id=1241769356657496411, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=CN, label=图13, caption=
α=1.25窥视结果, figureFileSmall=aooE2Yuju3bKo0/u14FcAA==, figureFileBig=CtOr4HaXC+e/Cr1xg9sdhA==, tableContent=null), ArticleFig(id=1241769356770742625, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=EN, label=Fig. 14, caption=
Peep results of α=1.43, figureFileSmall=hfR+qvtMB9tBoGzopqjuPQ==, figureFileBig=x6F3I6ATDfU5YdaZqAaMGA==, tableContent=null), ArticleFig(id=1241769356888183143, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=CN, label=图14, caption=
α=1.43窥视结果, figureFileSmall=hfR+qvtMB9tBoGzopqjuPQ==, figureFileBig=x6F3I6ATDfU5YdaZqAaMGA==, tableContent=null), ArticleFig(id=1241769356984652137, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=EN, label=Fig. 15, caption=
Peep results of α=1.7, figureFileSmall=LHvrnJ7sJo6pLYPk6GVXzg==, figureFileBig=McgbjeDKvhgRmqHNvMwBYA==, tableContent=null), ArticleFig(id=1241769357135647089, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=CN, label=图15, caption=
α=1.7窥视结果, figureFileSmall=LHvrnJ7sJo6pLYPk6GVXzg==, figureFileBig=McgbjeDKvhgRmqHNvMwBYA==, tableContent=null), ArticleFig(id=1241769357248893299, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=EN, label=Fig. 16, caption=
Peep results of α=2, figureFileSmall=zpFQ2NKHjuxDNd3+DjzaaQ==, figureFileBig=7NZNrjw8ZnbZ6oGDAZMyiw==, tableContent=null), ArticleFig(id=1241769357341167990, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=CN, label=图16, caption=
α=2窥视结果, figureFileSmall=zpFQ2NKHjuxDNd3+DjzaaQ==, figureFileBig=7NZNrjw8ZnbZ6oGDAZMyiw==, tableContent=null), ArticleFig(id=1241769357441831291, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=EN, label=Fig. 17, caption=
Isometric charge structure and goaf retaining roadway, figureFileSmall=m3IHysedKA0349+A9JRP+Q==, figureFileBig=v5wjkRdzwrOfJDfVbZW5GA==, tableContent=null), ArticleFig(id=1241769357559271808, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=CN, label=图17, caption=
采用等长装药结构巷道留设效果, figureFileSmall=m3IHysedKA0349+A9JRP+Q==, figureFileBig=v5wjkRdzwrOfJDfVbZW5GA==, tableContent=null), ArticleFig(id=1241769357634769281, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=EN, label=Table 1, caption=
Charging scheme
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案 | 封堵长度/m | 装药长度/m | 空气长度/m | 不耦合系数 |
|---|
| 1 | 0.2 | 1.0 | 0.0 | 1.00 |
| 2 | 0.9 | 0.1 | 1.10 |
| 3 | 0.8 | 0.2 | 1.25 |
| 4 | 0.7 | 0.3 | 1.43 |
| 5 | 0.6 | 0.4 | 1.70 |
| 6 | 0.5 | 0.5 | 2.00 |
| 7 | 0.4 | 0.6 | 2.50 |
| 8 | 0.3 | 0.7 | 3.30 |
), ArticleFig(id=1241769357722849669, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=CN, label=表1, caption=
装药方案
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案 | 封堵长度/m | 装药长度/m | 空气长度/m | 不耦合系数 |
|---|
| 1 | 0.2 | 1.0 | 0.0 | 1.00 |
| 2 | 0.9 | 0.1 | 1.10 |
| 3 | 0.8 | 0.2 | 1.25 |
| 4 | 0.7 | 0.3 | 1.43 |
| 5 | 0.6 | 0.4 | 1.70 |
| 6 | 0.5 | 0.5 | 2.00 |
| 7 | 0.4 | 0.6 | 2.50 |
| 8 | 0.3 | 0.7 | 3.30 |
), ArticleFig(id=1241769357810930057, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=EN, label=Table 2, caption=
Main mechanical parameters of rock
, figureFileSmall=null, figureFileBig=null, tableContent=
| 抗压强度/MPa | 抗拉强度/MPa | 泊松比 | 密度/(g·cm-3) |
|---|
| 60 | 4.05 | 0.25 | 2.58 |
), ArticleFig(id=1241769357915787660, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=CN, label=表2, caption=
岩石力学参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 抗压强度/MPa | 抗拉强度/MPa | 泊松比 | 密度/(g·cm-3) |
|---|
| 60 | 4.05 | 0.25 | 2.58 |
), ArticleFig(id=1241769358016450961, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=EN, label=Table 3, caption=
Mechanical parameters of plugging material
, figureFileSmall=null, figureFileBig=null, tableContent=
| 密度/(kg·m-3) | 弹性模量/GPa | 泊松比 | 屈服应力/MPa |
|---|
| 2350 | 30 | 0.29 | 7.5 |
), ArticleFig(id=1241769358100337041, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=CN, label=表3, caption=
封堵材料力学参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 密度/(kg·m-3) | 弹性模量/GPa | 泊松比 | 屈服应力/MPa |
|---|
| 2350 | 30 | 0.29 | 7.5 |
), ArticleFig(id=1241769358205194644, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=EN, label=Table 4, caption=
Main mechanical parameters of explosive
, figureFileSmall=null, figureFileBig=null, tableContent=
| 密度ρ/(g·cm-3) | D/(cm·μs-1) | Pcj/GPa | A/GPa | B/GPa |
|---|
| 1.0 | 0.4 | 7.4 | 214.4 | 0.812 |
), ArticleFig(id=1241769358310052249, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=CN, label=表4, caption=
炸药主要力学参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 密度ρ/(g·cm-3) | D/(cm·μs-1) | Pcj/GPa | A/GPa | B/GPa |
|---|
| 1.0 | 0.4 | 7.4 | 214.4 | 0.812 |
), ArticleFig(id=1241769358398132635, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=EN, label=Table 5, caption=
Air material parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
| 密度ρ/(kg·m-3) | C1~C3 | C4 | C5 | C6 | E0/GPa |
|---|
| 1000 | 0 | 0.4 | 0.4 | 0 | 0.025 |
), ArticleFig(id=1241769358469435806, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=CN, label=表5, caption=
空气材料参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 密度ρ/(kg·m-3) | C1~C3 | C4 | C5 | C6 | E0/GPa |
|---|
| 1000 | 0 | 0.4 | 0.4 | 0 | 0.025 |
), ArticleFig(id=1241769358536544673, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=EN, label=Table 6, caption=
Mechanical parameters of shaped tube materials
, figureFileSmall=null, figureFileBig=null, tableContent=
| 密度ρ/(kg·m-3) | E/GPa | GPVC/GPa | δ/MPa | ν |
|---|
| 1.43 | 43 | 3.2 | 61.7 | 0.32 |
), ArticleFig(id=1241769358645596581, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=CN, label=表6, caption=
聚能管材料力学参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 密度ρ/(kg·m-3) | E/GPa | GPVC/GPa | δ/MPa | ν |
|---|
| 1.43 | 43 | 3.2 | 61.7 | 0.32 |
), ArticleFig(id=1241769358704316840, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241769333135839482, language=EN, label=Table 7, caption=
Statistical table of peak stress at each measuring point
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| 相对距离 | α=1.0 | α=1.1 | α=1.25 | α=1.43 | α=1.7 | α=2 | α=2.5 | α=3.3 |
|---|
| 5 | 50 | 21 | 18 | 11 | 8 | 0.01 | 0.01 | 0.01 |
| 10 | 25 | 8 | 2 | 0.1 | 0.1 | 0.01 | 0.01 | 0.01 |
| 15 | 1 | 1.5 | 1 | 0.1 | 0 | 0.01 | 0.01 | 0.01 |
| 20 | 1 | 0.4 | 0.1 | 0.1 | 0 | 0.01 | 0.01 | 0.01 |
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各测点峰值应力统计表
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| 相对距离 | α=1.0 | α=1.1 | α=1.25 | α=1.43 | α=1.7 | α=2 | α=2.5 | α=3.3 |
|---|
| 5 | 50 | 21 | 18 | 11 | 8 | 0.01 | 0.01 | 0.01 |
| 10 | 25 | 8 | 2 | 0.1 | 0.1 | 0.01 | 0.01 | 0.01 |
| 15 | 1 | 1.5 | 1 | 0.1 | 0 | 0.01 | 0.01 | 0.01 |
| 20 | 1 | 0.4 | 0.1 | 0.1 | 0 | 0.01 | 0.01 | 0.01 |
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Charging scheme
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| 孔深/m | 封孔长度/m | 装药长度/cm | 空气长度/cm | 不耦合系数 |
|---|
| 12 | 2 | 50 | 50 | 2.00 |
| 12 | 2 | 60 | 40 | 1.70 |
| 12 | 2 | 70 | 30 | 1.43 |
| 12 | 2 | 80 | 20 | 1.25 |
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装药方案
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| 孔深/m | 封孔长度/m | 装药长度/cm | 空气长度/cm | 不耦合系数 |
|---|
| 12 | 2 | 50 | 50 | 2.00 |
| 12 | 2 | 60 | 40 | 1.70 |
| 12 | 2 | 70 | 30 | 1.43 |
| 12 | 2 | 80 | 20 | 1.25 |
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