Article(id=1241442324186714685, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241442313185063097, articleNumber=null, orderNo=null, doi=10.3963/j.issn.1001-487X.2023.01.002, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1663776000000, receivedDateStr=2022-09-22, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1773912514969, onlineDateStr=2026-03-19, pubDate=1677600000000, pubDateStr=2023-03-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773912514969, onlineIssueDateStr=2026-03-19, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773912514969, creator=13701087609, updateTime=1773912514969, updator=13701087609, issue=Issue{id=1241442313185063097, tenantId=1146029695717560320, journalId=1240670690148397066, year='2023', volume='40', 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=1773912512346, creator=13701087609, updateTime=1773912765519, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241443375145079400, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241442313185063097, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241443375145079401, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241442313185063097, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=10, endPage=20, ext={EN=ArticleExt(id=1241442324551619145, articleId=1241442324186714685, tenantId=1146029695717560320, journalId=1240670690148397066, language=EN, title=Research on Blasting Failure Characteristics and Strain Evolution Law of Bearing Column, columnId=1240702071733801442, journalTitle=Blasting, columnName=THEORETICAL AND TECHNOLOGICAL EXPLORATION, runingTitle=null, highlight=null, articleAbstract=
In order to analyze the failure characteristics and strain evolution law of reinforced concrete columns after blasting under different amount of explosives per unit area and section stresses, blasting tests of 12 reinforced concrete columns were carried out by using a self-developed test system with uniaxial inertial dynamic loading model, which is based on the theory of elastic mechanics. When the upper section stress of the reinforced concrete columns was 0 MPa, the corresponding amounts of explosives per unit area were 0.11 kg/m2, 0.23 kg/m2, 0.27 kg/m2, respectively. When the upper section stress was 2 MPa, the corresponding amounts of explosives per unit area were 0.13 kg/m2, 0.18 kg/m2, 0.23 kg/m2, respectively. When the upper section stress was 3 MPa, the corresponding amounts of explosives per unit area were 0.18 kg/m2, 0.23 kg/m2, 0.32 kg/m2, respectively. When the upper cross-sectional stress was 4 MPa, the corresponding amounts of explosives per unit area were 0.13 kg/m2, 0.18 kg/m2, 0.23 kg/m2, respectively. In addition, numerical simulation software was used to analyze the impact of different section stresses on blasting effect. The longitudinal central axis crushing distance is defined to describe the crushing range of the column after blasting, and the central axis crushing distance and strain evolution law are analyzed under different influencing factors through theoretical deduction, field experiment and numerical simulation. The analysis results show that with the increase of section stress, the greater the coupling tangential stress close to the central axis, and the coupling tangential tensile stress which is perpendicular to the loading direction is relatively reduced. When the amount of explosive per unit area is less than 0.15 kg/m2, the crushing range of the central axis of the column decreases with the increase of the section stress. When the amount of explosive per unit area is more than 0.15 kg/m2, with the increase of section stress, the crushing range continues to increase. The peak of tangential tensile strain shows an upward trend, and the absolute value of the peak radial compressive strain gradually decreases. When the section stress is fixed, the crushing range of the column increases with the increase of the amount of explosive per unit area, but the growth rate decreases with the increase of the amount of explosive per unit area. Meanwhile, the peak of the tangential tensile strain of the column increases, and the absolute value of the peak radial compressive strain also shows an upward trend. With the increase of section stress, the crushing range in the column damage cloud is increasing, and the crack tends to extend axially with the load, which further verifies the correctness of the test conclusions.
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为分析不同单位面积炸药量及不同截面应力下的钢筋混凝土立柱爆破后破坏特征及应变演化规律,以弹性力学理论为基础,利用自主研制的单轴惯性动载力学模型试验系统对12个钢筋混凝土立柱进行爆破试验。当钢筋混凝土立柱上部截面应力为0 MPa时对应单位面积炸药量为0.11 kg/m2、0.23 kg/m2、0.27 kg/m2;上部截面应力为2 MPa时对应单位面积炸药量为0.13 kg/m2、0.18 kg/m2、0.23 kg/m2;上部截面应力为3 MPa时对应单位面积炸药量为0.18 kg/m2、0.23 kg/m2、0.32 kg/m2;上部截面应力为4 MPa时对应单位面积炸药量为0.13 kg/m2、0.18 kg/m2、0.23 kg/m2,并且运用数值仿真模拟软件对不同截面应力影响爆破效果进行模拟分析。定义纵向中轴线破碎距离来描述立柱爆破后的破碎范围,通过理论推导、现场试验及数值模拟软件分析不同影响因素下的中轴线破碎距离及应变演化规律得出:随着截面应力的增加,越接近中轴线的耦合切向应力越大,与加载方向垂直的耦合切向拉应力相对减小;当单位面积炸药量约小于0.15 kg/m2时,随立柱截面应力增大,立柱中轴线破碎距离不断减小;当单位面积炸药量约大于0.15 kg/m2时,随着截面应力的递增,中轴线破碎距离不断增大,立柱的切向拉应变峰值呈上升趋势,径向压应变峰值绝对值逐渐减小;当截面应力一定时,随着单位面积炸药量的增加,立柱纵向中轴线破碎距离增大,但是增长幅度却随着单位面积炸药量的增加而减小,同时立柱的切向拉应变峰值增大,径向压应变峰值绝对值也呈上升趋势;随着截面应力的增大,立柱损伤云图中轴线上损伤距离不断增大,且裂纹倾向于加载轴向扩展,进一步验证试验结论的正确性。
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, authorsList=费鸿禄, 李文焱, 魏世众, 山杰, 甄帅)}, authors=[Author(id=1241442336929009800, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=feihonglu@163.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241442337059033232, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, authorId=1241442336929009800, language=EN, stringName=Hong-lu FEI, firstName=Hong-lu, middleName=null, lastName=FEI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=Blasting Technology Research Institute, Liaoning Technical University, Fuxin123000, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241442337197445275, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, authorId=1241442336929009800, language=CN, stringName=费鸿禄, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=辽宁工程技术大学 爆破技术研究院,阜新 123000, bio={"content":"
费鸿禄(1963-),男,教授、博士生导师,主要从事爆破工程和地下工程方面的科研与教学工作,(E-mail)feihonglu@163.com。
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费鸿禄(1963-),男,教授、博士生导师,主要从事爆破工程和地下工程方面的科研与教学工作,(E-mail)feihonglu@163.com。
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orderNo=2, keyword=钢筋混凝土立柱), Keyword(id=1241442341244948789, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=CN, orderNo=3, keyword=截面应力), Keyword(id=1241442341358195003, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=CN, orderNo=4, keyword=单位面积炸药量), Keyword(id=1241442341446275395, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=CN, orderNo=5, keyword=破坏特征), Keyword(id=1241442341555327307, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=CN, orderNo=6, keyword=应变演化规律)], refs=[Reference(id=1241442347557376530, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, doi=null, pmid=null, pmcid=null, year=2016, volume=33, issue=3, pageStart=75, pageEnd=80, url=null, language=null, rfNumber=[1], rfOrder=0, authorNames=贾永胜, 谢先启, 姚颖康, 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WANG Guang-cheng, et al. Experimental study on the failure effect of blasting funnel under unidirectional initial load[J].
Metal Mines,
2021(3): 54-60. (in Chinese), articleTitle=Experimental study on the failure effect of blasting funnel under unidirectional initial load, refAbstract=null), Reference(id=1241442351890092641, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, doi=null, pmid=null, pmcid=null, year=2019, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=[21], rfOrder=35, authorNames=王梦想, journalName=null, refType=null, unstructuredReference=王梦想. 围压作用下的爆炸应力场及岩石损伤破坏机理模型试验研究[D]. 淮南: 安徽理工大学,
2019., articleTitle=围压作用下的爆炸应力场及岩石损伤破坏机理模型试验研究, refAbstract=null), Reference(id=1241442351953007202, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, doi=null, pmid=null, pmcid=null, year=2019, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=[21], rfOrder=36, authorNames=WANG Meng-xiang, journalName=null, refType=null, unstructuredReference=
WANG Meng-xiang. Experimental study on the model of explosion stress field and rock damage failure mechanism under confining pressure[D]. Huainan: Anhui University of Science and Technology,
2019. (in Chinese), articleTitle=Experimental study on the model of explosion stress field and rock damage failure mechanism under confining pressure, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1241442336798986362, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, xref=null, ext=[AuthorCompanyExt(id=1241442336807374971, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, companyId=1241442336798986362, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Blasting Technology Research Institute, Liaoning Technical University, Fuxin123000, China), AuthorCompanyExt(id=1241442336815763583, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, companyId=1241442336798986362, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=辽宁工程技术大学 爆破技术研究院,阜新 123000)])], figs=[ArticleFig(id=1241442341723099481, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=EN, label=Fig. 1, caption=
Schematic diagram of concrete column force, figureFileSmall=IgaFtQSQjrZ52E+cNKvOlA==, figureFileBig=z3C8nwr4coNy4UlcjV8Mjw==, tableContent=null), ArticleFig(id=1241442341802791260, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=CN, label=图1, caption=
混凝土立柱受力示意图, figureFileSmall=IgaFtQSQjrZ52E+cNKvOlA==, figureFileBig=z3C8nwr4coNy4UlcjV8Mjw==, tableContent=null), ArticleFig(id=1241442342075421041, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=EN, label=Fig. 2, caption=
Coupling stress evolution diagram around the blast hole under different axial pressures, figureFileSmall=g6a9P6qKBUVoFKYkpYgXEw==, figureFileBig=9BgzPtEI6nUf8YPz6SYXnw==, tableContent=null), ArticleFig(id=1241442342163501431, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=CN, label=图2, caption=
不同轴压作用下炮孔周边耦合应力演化图, figureFileSmall=g6a9P6qKBUVoFKYkpYgXEw==, figureFileBig=9BgzPtEI6nUf8YPz6SYXnw==, tableContent=null), ArticleFig(id=1241442342259970430, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=EN, label=Fig. 3, caption=
Test setup, figureFileSmall=p/gTbrTUnpgjQlRW5NMq1w==, figureFileBig=JPA1tH9izK6ufAl4hCCfSg==, tableContent=null), ArticleFig(id=1241442342394188163, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=CN, label=图3, caption=
试验装置, figureFileSmall=p/gTbrTUnpgjQlRW5NMq1w==, figureFileBig=JPA1tH9izK6ufAl4hCCfSg==, tableContent=null), ArticleFig(id=1241442342469685641, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=EN, label=Fig. 4, caption=
Layout of strain gauge measuring points, figureFileSmall=vFrc4dIlExP9kg/PUr9iOQ==, figureFileBig=W1oMDXdKfHaSB+nx4Q+qZA==, tableContent=null), ArticleFig(id=1241442342582931857, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=CN, label=图4, caption=
应变片测点布置图, figureFileSmall=vFrc4dIlExP9kg/PUr9iOQ==, figureFileBig=W1oMDXdKfHaSB+nx4Q+qZA==, tableContent=null), ArticleFig(id=1241442342671012244, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=EN, label=Fig. 5, caption=
Field explosion test, figureFileSmall=+00cT6JuBk2GrmFyU1C5Fw==, figureFileBig=I1PxwycH/PA0XRzRjU60Dw==, tableContent=null), ArticleFig(id=1241442342763286936, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=CN, label=图5, caption=
野外爆炸试验, figureFileSmall=+00cT6JuBk2GrmFyU1C5Fw==, figureFileBig=I1PxwycH/PA0XRzRjU60Dw==, tableContent=null), ArticleFig(id=1241442342884921756, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=EN, label=Fig. 6, caption=
Test damage phenomenon, figureFileSmall=MhusN5fu+rr4CXdpQEr0dw==, figureFileBig=h3Zd6+l07uHovQhkaMmyJw==, tableContent=null), ArticleFig(id=1241442342960419234, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=CN, label=图6, caption=
试验破坏现象, figureFileSmall=MhusN5fu+rr4CXdpQEr0dw==, figureFileBig=h3Zd6+l07uHovQhkaMmyJw==, tableContent=null), ArticleFig(id=1241442343052693926, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=EN, label=Fig. 7, caption=
Schematic diagram of column failure characteristics after blasting, figureFileSmall=tIyM2Oi/jShGVE8xs0+dIg==, figureFileBig=tx9hzrwWRuD6zIjCYJPQDg==, tableContent=null), ArticleFig(id=1241442343144968619, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=CN, label=图7, caption=
爆破后立柱破坏形态特征示意图, figureFileSmall=tIyM2Oi/jShGVE8xs0+dIg==, figureFileBig=tx9hzrwWRuD6zIjCYJPQDg==, tableContent=null), ArticleFig(id=1241442344931742125, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=EN, label=Fig. 8, caption=
Fitting diagram of axial pressure, explosive quantity per unit area and central axis crushing range, figureFileSmall=oYBSBpgb1JrVXrHRZ0cwMg==, figureFileBig=ADJb+P9T3N2RVJvLDukjOQ==, tableContent=null), ArticleFig(id=1241442345057571249, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=CN, label=图8, caption=
截面应力、单位面积炸药量双因素与中轴线破碎距离拟合图, figureFileSmall=oYBSBpgb1JrVXrHRZ0cwMg==, figureFileBig=ADJb+P9T3N2RVJvLDukjOQ==, tableContent=null), ArticleFig(id=1241442345120485813, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=EN, label=Fig. 9, caption=
The strain time history curve of Z2E13 specimen in X direction, figureFileSmall=1pC4POEWD5RSabKNBjy9Ow==, figureFileBig=F07u21M/ANyntfVzgW0vVg==, tableContent=null), ArticleFig(id=1241442345216954809, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=CN, label=图9, caption=
Z2E13试件X方向应变时程曲线, figureFileSmall=1pC4POEWD5RSabKNBjy9Ow==, figureFileBig=F07u21M/ANyntfVzgW0vVg==, tableContent=null), ArticleFig(id=1241442345305035196, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=EN, label=Fig. 10, caption=
Y-direction strain time history curve of Z2E13 specimen, figureFileSmall=qmQ72CxoT3361dDAAzRtQg==, figureFileBig=nkGBJhNY9yixDfRo/pfc1w==, tableContent=null), ArticleFig(id=1241442345384726974, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=CN, label=图10, caption=
Z2E13试件Y方向应变时程曲线, figureFileSmall=qmQ72CxoT3361dDAAzRtQg==, figureFileBig=nkGBJhNY9yixDfRo/pfc1w==, tableContent=null), ArticleFig(id=1241442345489584579, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=EN, label=Fig. 11, caption=
Variation of strain with charge amount, figureFileSmall=hSwvtjT5wz3HSE0J6bG8Lg==, figureFileBig=TQeO4BR0+rJDKjTO+pTmxA==, tableContent=null), ArticleFig(id=1241442345594442184, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=CN, label=图11, caption=
应变随单位面积炸药量变化图, figureFileSmall=hSwvtjT5wz3HSE0J6bG8Lg==, figureFileBig=TQeO4BR0+rJDKjTO+pTmxA==, tableContent=null), ArticleFig(id=1241442345699299788, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=EN, label=Fig. 12, caption=
Diagram of strain variation with sectional stress, figureFileSmall=cYWXnRhaxZyVaMmX3jIkaA==, figureFileBig=5FpGdgzxV/iGsA0gSy7WLA==, tableContent=null), ArticleFig(id=1241442345799963091, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=CN, label=图12, caption=
应变随截面应力变化图, figureFileSmall=cYWXnRhaxZyVaMmX3jIkaA==, figureFileBig=5FpGdgzxV/iGsA0gSy7WLA==, tableContent=null), ArticleFig(id=1241442345921597911, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=EN, label=Fig. 13, caption=
Schematic diagram of the model, figureFileSmall=sFUM3scYwaaYnMR10WG/FA==, figureFileBig=i4rrOjhaydQPD/IiIHfO6Q==, tableContent=null), ArticleFig(id=1241442346093564382, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=CN, label=图13, caption=
模型示意图, figureFileSmall=sFUM3scYwaaYnMR10WG/FA==, figureFileBig=i4rrOjhaydQPD/IiIHfO6Q==, tableContent=null), ArticleFig(id=1241442346198421988, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=EN, label=Fig. 14, caption=
Damage diagram of concrete column under different section stresses, figureFileSmall=VT5lK+fJLaXHTVMpJISsOg==, figureFileBig=+UM9ddM/KOEEaQbq5baUhg==, tableContent=null), ArticleFig(id=1241442346345222632, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=CN, label=图14, caption=
不同截面应力下混凝土立柱损伤图, figureFileSmall=VT5lK+fJLaXHTVMpJISsOg==, figureFileBig=+UM9ddM/KOEEaQbq5baUhg==, tableContent=null), ArticleFig(id=1241442346424914414, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=EN, label=Fig. 15, caption=
End horizontal strain time course curve, figureFileSmall=lJUO7Q/ns9snmbsqSa7Mdw==, figureFileBig=FWriIIbR+2etwk3TFlo+uw==, tableContent=null), ArticleFig(id=1241442346592686577, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=CN, label=图15, caption=
端部水平应变时程曲线图, figureFileSmall=lJUO7Q/ns9snmbsqSa7Mdw==, figureFileBig=FWriIIbR+2etwk3TFlo+uw==, tableContent=null), ArticleFig(id=1241442346668184054, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=EN, label=Fig. 16, caption=
Vertical strain time course curve at 1/3 length of the column from the upper part, figureFileSmall=JkIg0REUdJ1rPqEB+3PcHQ==, figureFileBig=eypmJmk0CBwGVt7gQjtgqA==, tableContent=null), ArticleFig(id=1241442346798207483, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=CN, label=图16, caption=
距离上端1/3处竖向应变时程曲线图, figureFileSmall=JkIg0REUdJ1rPqEB+3PcHQ==, figureFileBig=eypmJmk0CBwGVt7gQjtgqA==, tableContent=null), ArticleFig(id=1241442346890482174, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=EN, label=Table 1, caption=
Blasting test results of reinforced concrete specimens
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 立柱编号 | 上部截面应力/MPa | 单位面积炸药量/(kg·m-2) |
|---|
| 1 | Z0E11 | 0 | 0.11 |
| 2 | Z0E23 | 0 | 0.23 |
| 3 | Z0E27 | 0 | 0.27 |
| 4 | Z2E13 | 2 | 0.13 |
| 5 | Z2E18 | 2 | 0.18 |
| 6 | Z2E23 | 2 | 0.23 |
| 7 | Z3E18 | 3 | 0.18 |
| 8 | Z3E23 | 3 | 0.23 |
| 9 | Z3E32 | 3 | 0.32 |
| 10 | Z4E13 | 4 | 0.13 |
| 11 | Z4E18 | 4 | 0.18 |
| 12 | Z4E23 | 4 | 0.23 |
), ArticleFig(id=1241442347028894213, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=CN, label=表1, caption=
钢筋混凝土立柱爆破试验工况
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 立柱编号 | 上部截面应力/MPa | 单位面积炸药量/(kg·m-2) |
|---|
| 1 | Z0E11 | 0 | 0.11 |
| 2 | Z0E23 | 0 | 0.23 |
| 3 | Z0E27 | 0 | 0.27 |
| 4 | Z2E13 | 2 | 0.13 |
| 5 | Z2E18 | 2 | 0.18 |
| 6 | Z2E23 | 2 | 0.23 |
| 7 | Z3E18 | 3 | 0.18 |
| 8 | Z3E23 | 3 | 0.23 |
| 9 | Z3E32 | 3 | 0.32 |
| 10 | Z4E13 | 4 | 0.13 |
| 11 | Z4E18 | 4 | 0.18 |
| 12 | Z4E23 | 4 | 0.23 |
), ArticleFig(id=1241442347116974600, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=EN, label=Table 2, caption=
Material model parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
| 材料 | 参数名称 | 参数值 | 参数名称 | 参数值 | 参数名称 | 参数值 |
|---|
| 炸药 | 密度/(kg·m-3) | 1000 | 爆速/(m·s-1) | 3200 | PCJ压力/Pa | 1×1010 |
| A/Pa | 1×109 | B/Pa | 4.19×1010 | R1 | 10 |
| R2 | 3.6 | ω | 0.038 | E0 | 7×109 |
| 空气 | 密度/(kg·m-3) | 1.29×10-3 | 材料内能/Pa | 2.5×105 | 相对体积 | 1.0 |
| 混凝土 | 密度/(kg·m-3) | 2300 | 弹性模量/MPa | 3×104 | 泊松比 | 0.2 |
| 钢筋 | 密度/(kg·m-3) | 7.5×103 | 弹性模量/MPa | 2.1×105 | 泊松比 | 0.25 |
), ArticleFig(id=1241442347200860679, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=CN, label=表2, caption=
材料模型参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 材料 | 参数名称 | 参数值 | 参数名称 | 参数值 | 参数名称 | 参数值 |
|---|
| 炸药 | 密度/(kg·m-3) | 1000 | 爆速/(m·s-1) | 3200 | PCJ压力/Pa | 1×1010 |
| A/Pa | 1×109 | B/Pa | 4.19×1010 | R1 | 10 |
| R2 | 3.6 | ω | 0.038 | E0 | 7×109 |
| 空气 | 密度/(kg·m-3) | 1.29×10-3 | 材料内能/Pa | 2.5×105 | 相对体积 | 1.0 |
| 混凝土 | 密度/(kg·m-3) | 2300 | 弹性模量/MPa | 3×104 | 泊松比 | 0.2 |
| 钢筋 | 密度/(kg·m-3) | 7.5×103 | 弹性模量/MPa | 2.1×105 | 泊松比 | 0.25 |
), ArticleFig(id=1241442347301523978, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=EN, label=Table 3, caption=
Central axis crushing range
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| 截面应力/MPa | 实际中轴线破碎距离/cm | 模拟中轴线破碎距离/cm |
|---|
| 0 | 8.8 | 9.5 |
| 2 | 9.5 | 10.4 |
| 3 | 10.3 | 10.9 |
| 4 | 10.9 | 11.4 |
| 10 | — | 11.8 |
), ArticleFig(id=1241442347381215757, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241442324186714685, language=CN, label=表3, caption=
混凝土立柱中轴线破碎距离
, figureFileSmall=null, figureFileBig=null, tableContent=
| 截面应力/MPa | 实际中轴线破碎距离/cm | 模拟中轴线破碎距离/cm |
|---|
| 0 | 8.8 | 9.5 |
| 2 | 9.5 | 10.4 |
| 3 | 10.3 | 10.9 |
| 4 | 10.9 | 11.4 |
| 10 | — | 11.8 |
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