Article(id=1241409517943050644, tenantId=1146029695717560320, journalId=1240670690148397066, issueId=1241409507583127593, articleNumber=null, orderNo=null, doi=10.3963/j.issn.1001-487X.2024.04.008, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1711382400000, receivedDateStr=2024-03-26, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1773904693350, onlineDateStr=2026-03-19, pubDate=1732982400000, pubDateStr=2024-12-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773904693350, onlineIssueDateStr=2026-03-19, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773904693350, creator=13701087609, updateTime=1773904693350, 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=61, endPage=72, ext={EN=ArticleExt(id=1241409520975532474, articleId=1241409517943050644, tenantId=1146029695717560320, journalId=1240670690148397066, language=EN, title=Mechanism and Quantitative Characterization Method of Rock Clamping Effect in Medium-deep Hole Blasting of Steeply Inclined Narrow Vein Mining, columnId=1240702072862069231, journalTitle=Blasting, columnName=BLASTING IN ORE AND ROCK, runingTitle=null, highlight=null, articleAbstract=
Since the problems of significant rock clamping effect and ore depletion were caused by deep hole blasting in steeply inclined thin veins, a combination of on-site investigation, PMMA (organic glass) blasting model experiment and numerical simulation was used to explore the mechanism and a quantitative characterization method of rock clamping effect by taking a gold mine in Gansu Province as the engineering background. Firstly, to analyze the distribution pattern of blasting cracks under different mining conditions of thin ore veins, a PMMA blasting model experiment was conducted. The results show that reducing the mining width of the thin ore veins reduces the radius of blasting crushing and fracture areas around the blast hole and suppresses the development of blasting cracks. Furthermore, different blasting conditions of thin ore vein mining were simulated. The results show that as the mining width of thin ore veins decreases, the blasting energy reflected and superimposed at the blasting-free surface decreases, and the volume of blasting rock decreases accordingly. Meanwhile, more blasting energy is dissipated as kinetic energy, which could not be effectively used to break the rock. Finally, a quantitative characterization method for the clamping coefficient of thin ore vein blasting was proposed based on the analysis of blasting energy. A clamping coefficient was defined by the ratio of the total energy peak at the center point of the blasting free surface under semi-infinite and narrow amplitude working conditions, and this index characterized the size of the clamping effect. As a result, a prediction model for the blasting clamping coefficient was established through the mining width and rock mechanics parameters. The study of this paper can provide a theoretical basis and technical support for the optimization design of deep hole blasting parameters in steeply inclined thin ore veins.
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AN Long (1987-), male, Ph. D, associate professor, mainly engaged in researching ore body mining and blasting engineering, (E-mail)
anlong@mail.neu.edu.cn.
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以甘肃某金矿急倾斜薄矿脉为工程背景,针对急倾斜薄矿脉中深孔爆破围岩夹制作用大,矿石贫损大的问题,采用现场调查、PMMA(有机玻璃)爆破模型试验与数值模拟相结合的方法,深入探究了薄矿脉爆破围岩夹制作用机理,提出并建立了围岩夹制作用的定量表征方法。开展PMMA爆破模型试验,分析了薄矿脉不同采幅条件下的爆生裂纹分布规律,结果表明:薄矿脉采幅减小,降低了炮孔周围爆破粉碎区以及破裂区的半径,抑制了爆破裂纹的发育。开展了不同薄矿脉采幅条件下的爆破数值模拟,结果表明:薄矿脉采幅减小,爆破自由面处反射叠加的爆破能量减小,爆破破岩的体积也相应减小,更多的爆破能量以动能的形式散逸不能有效破岩。基于爆破能量分析结果,提出了薄矿脉爆破夹制系数的定量表征方法,即采用半无限工况和窄幅工况下爆破自由面中心点处的总能量峰值之比来定义夹制系数,并用该指标来表征夹制作用的大小,进而通过采幅宽度和岩体力学参数建立了爆破夹制系数预测模型,为急倾斜薄矿脉中深孔爆破参数的优化设计提供了理论依据和技术支持。
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王智(1998-),男,硕士研究生,主要从事爆破工程研究,(E-mail)zwangcd@qq.com。
WANG Zhi (1998-), male, master degree candidate, mainly engaged in researching blasting engineering, (E-mail) zwangcd@qq.com.
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1.东北大学 深部金属矿山安全开采教育部重点实验室,沈阳 110819, bio={"content":"
王智(1998-),男,硕士研究生,主要从事爆破工程研究,(E-mail)zwangcd@qq.com。
WANG Zhi (1998-), male, master degree candidate, mainly engaged in researching blasting engineering, (E-mail) zwangcd@qq.com.
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王智(1998-),男,硕士研究生,主要从事爆破工程研究,(E-mail)zwangcd@qq.com。
WANG Zhi (1998-), male, master degree candidate, mainly engaged in researching blasting engineering, (E-mail) zwangcd@qq.com.
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International Journal of Rock Mechanics and Mining Sciences,
2007,
44(1): 130-147., articleTitle=Energy components in rock blasting, refAbstract=null)], funds=[Fund(id=1241409544652378404, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, awardId=2022YFC2903802, language=EN, fundingSource=National Key Research and Development Program of China(2022YFC2903802), fundOrder=null, country=null), Fund(id=1241409544727875880, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, awardId=2022YFC2903802, language=CN, fundingSource=国家重点研发计划(2022YFC2903802), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1241409531364823912, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, xref=1., ext=[AuthorCompanyExt(id=1241409531373212521, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, companyId=1241409531364823912, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern University, Shenyang 110819, China), AuthorCompanyExt(id=1241409531385795434, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, companyId=1241409531364823912, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.东北大学 深部金属矿山安全开采教育部重点实验室,沈阳 110819)]), AuthorCompany(id=1241409532937687923, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, xref=2., ext=[AuthorCompanyExt(id=1241409532946076532, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, companyId=1241409532937687923, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.Xihe County Zhongbao Mining Co., Ltd., Longnan 742199, China), AuthorCompanyExt(id=1241409532954465141, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, companyId=1241409532937687923, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.西和县中宝矿业有限公司,陇南 742199)])], figs=[ArticleFig(id=1241409537677250598, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=EN, label=Fig. 1, caption=
Medium-deep hole blasting effect of steeply narrow vein mine (unit: m), figureFileSmall=h3vnBMlQDDQi86fJafjXYQ==, figureFileBig=qwlCoyWp3WS2b+aBwd+x3A==, tableContent=null), ArticleFig(id=1241409537748553772, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=CN, label=图1, caption=
急倾斜薄矿脉中深孔爆破效果示意图(单位:m), figureFileSmall=h3vnBMlQDDQi86fJafjXYQ==, figureFileBig=qwlCoyWp3WS2b+aBwd+x3A==, tableContent=null), ArticleFig(id=1241409538163789885, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=EN, label=Fig. 2, caption=
Medium-deep hole blasting mining method of steeply narrow vein mine (unit: m), figureFileSmall=cAPgyNo28OaPi5q/alYIQQ==, figureFileBig=TJWeyb0/5aDPVIibUILHRQ==, tableContent=null), ArticleFig(id=1241409538272841795, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=CN, label=图2, caption=
急倾斜薄矿脉中深孔开采方法(单位:m), figureFileSmall=cAPgyNo28OaPi5q/alYIQQ==, figureFileBig=TJWeyb0/5aDPVIibUILHRQ==, tableContent=null), ArticleFig(id=1241409538352533577, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=EN, label=Fig. 3, caption=
Explosive source and initiating device, figureFileSmall=soVD5RrMaMaVpzEIwkYvyw==, figureFileBig=wKgWfz6ef8PjwfvClnm0Ig==, tableContent=null), ArticleFig(id=1241409538457391182, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=CN, label=图3, caption=
爆源及起爆装置, figureFileSmall=soVD5RrMaMaVpzEIwkYvyw==, figureFileBig=wKgWfz6ef8PjwfvClnm0Ig==, tableContent=null), ArticleFig(id=1241409538599997527, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=EN, label=Fig. 4, caption=
Dimensions of PMMA panels (unit: mm), figureFileSmall=H0fjCNFoSJMtJ+1EHqfNsg==, figureFileBig=ZYh7Y3maEbpzd91nj2lNfw==, tableContent=null), ArticleFig(id=1241409538742603872, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=CN, label=图4, caption=
PMMA板尺寸(单位:mm), figureFileSmall=H0fjCNFoSJMtJ+1EHqfNsg==, figureFileBig=ZYh7Y3maEbpzd91nj2lNfw==, tableContent=null), ArticleFig(id=1241409538876821602, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=EN, label=Fig. 5, caption=
Explosion test results of PMMA panels, figureFileSmall=D41jzD5bYvzSfJCwUjymCw==, figureFileBig=sHoqzfVCN+3ziJoXS4ltdw==, tableContent=null), ArticleFig(id=1241409539069759592, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=CN, label=图5, caption=
PMMA板爆破试验结果, figureFileSmall=D41jzD5bYvzSfJCwUjymCw==, figureFileBig=sHoqzfVCN+3ziJoXS4ltdw==, tableContent=null), ArticleFig(id=1241409539195588719, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=EN, label=Fig. 6, caption=
Physical experiment blasting effect, figureFileSmall=oYl3SvAC+bGdCdtx6tws4w==, figureFileBig=g7zqV/ronsSZPM+sgLg9gw==, tableContent=null), ArticleFig(id=1241409539300446326, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=CN, label=图6, caption=
物理试验爆破效果, figureFileSmall=oYl3SvAC+bGdCdtx6tws4w==, figureFileBig=g7zqV/ronsSZPM+sgLg9gw==, tableContent=null), ArticleFig(id=1241409539464024189, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=EN, label=Fig. 7, caption=
Numerical models and boundary conditions (unit: m), figureFileSmall=kD3PyUJ3BIavT0G5JsbWqg==, figureFileBig=04ODZouGaItxNZKtLpeTuQ==, tableContent=null), ArticleFig(id=1241409539594047621, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=CN, label=图7, caption=
数值模型及边界条件(单位:m), figureFileSmall=kD3PyUJ3BIavT0G5JsbWqg==, figureFileBig=04ODZouGaItxNZKtLpeTuQ==, tableContent=null), ArticleFig(id=1241409539732459658, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=EN, label=Fig. 8, caption=
Comparative analysis of blasting damage areas, figureFileSmall=tAakhM2mDPpowbbRMC1uig==, figureFileBig=v5HQXfafX35Ptn3IfYFFJQ==, tableContent=null), ArticleFig(id=1241409539854094481, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=CN, label=图8, caption=
爆破破坏区对比分析, figureFileSmall=tAakhM2mDPpowbbRMC1uig==, figureFileBig=v5HQXfafX35Ptn3IfYFFJQ==, tableContent=null), ArticleFig(id=1241409540080586906, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=EN, label=Fig. 9, caption=
Comparative analysis of the volume of blasting damage area under the condition of variable mining width, figureFileSmall=AycM/32+M+vC5qKqM0OsFw==, figureFileBig=lVdj7eu9oXm7cjKEht3gcw==, tableContent=null), ArticleFig(id=1241409540231581859, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=CN, label=图9, caption=
变采幅宽度条件下爆破破坏区体积对比分析, figureFileSmall=AycM/32+M+vC5qKqM0OsFw==, figureFileBig=lVdj7eu9oXm7cjKEht3gcw==, tableContent=null), ArticleFig(id=1241409540407742636, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=EN, label=Fig. 10, caption=
Distribution law of kinetic energy in rock mass blasting of different free surface conditions, figureFileSmall=rZgKiZBBalPgGOhdIGZNsg==, figureFileBig=lCHVAKVFAf/puZguPKKlLw==, tableContent=null), ArticleFig(id=1241409541917692085, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=CN, label=图10, caption=
不同自由面工况下岩体爆破动能分布规律, figureFileSmall=rZgKiZBBalPgGOhdIGZNsg==, figureFileBig=lCHVAKVFAf/puZguPKKlLw==, tableContent=null), ArticleFig(id=1241409542064492730, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=EN, label=Fig. 11, caption=
Explosive escape energy, figureFileSmall=V8/UIWC1PIxAd8FB/JTAqw==, figureFileBig=FGcP9wjOinmoQGZRM5rIqA==, tableContent=null), ArticleFig(id=1241409542236459199, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=CN, label=图11, caption=
爆破散逸能量, figureFileSmall=V8/UIWC1PIxAd8FB/JTAqw==, figureFileBig=FGcP9wjOinmoQGZRM5rIqA==, tableContent=null), ArticleFig(id=1241409542341316808, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=EN, label=Fig. 12, caption=
Numerical simulation monitoring points, figureFileSmall=3WbJCnPo5xZDCZ0f6njxyw==, figureFileBig=hpdj99sOFT8frO160cxjMw==, tableContent=null), ArticleFig(id=1241409542454563024, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=CN, label=图12, caption=
数值模拟监测点布置图, figureFileSmall=3WbJCnPo5xZDCZ0f6njxyw==, figureFileBig=hpdj99sOFT8frO160cxjMw==, tableContent=null), ArticleFig(id=1241409542563614930, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=EN, label=Fig. 13, caption=
Energy propagation law at the free surface of medium-deep hole blasting in narrow vein mine, figureFileSmall=0mAPLovybomqBfmBOcbXCQ==, figureFileBig=7qyzk9G+Zjd+nnU9A+uMhw==, tableContent=null), ArticleFig(id=1241409542689444054, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=CN, label=图13, caption=
薄矿脉中深孔爆破自由面处能量传播规律, figureFileSmall=0mAPLovybomqBfmBOcbXCQ==, figureFileBig=7qyzk9G+Zjd+nnU9A+uMhw==, tableContent=null), ArticleFig(id=1241409542823661790, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=EN, label=Fig. 14, caption=
Energy analysis of monitoring points, figureFileSmall=Ia7nCKyJzCt3sVFqhD86zQ==, figureFileBig=aLLfgFQg+Vk8tSJsKc4fVQ==, tableContent=null), ArticleFig(id=1241409543004016870, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=CN, label=图14, caption=
监测点能量分析, figureFileSmall=Ia7nCKyJzCt3sVFqhD86zQ==, figureFileBig=aLLfgFQg+Vk8tSJsKc4fVQ==, tableContent=null), ArticleFig(id=1241409543125651692, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=EN, label=Fig. 15, caption=
Surrounding rock clamping coefficient, figureFileSmall=cDqYMGWr/jlBmxbaEP+JfQ==, figureFileBig=JSxBiHT5LSbKRAKqqVBdpg==, tableContent=null), ArticleFig(id=1241409543247286512, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=CN, label=图15, caption=
围岩夹制系数, figureFileSmall=cDqYMGWr/jlBmxbaEP+JfQ==, figureFileBig=JSxBiHT5LSbKRAKqqVBdpg==, tableContent=null), ArticleFig(id=1241409543394087162, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=EN, label=Fig. 16, caption=
Comparative analysis of blasting failure range of different rock mechanics parameters, figureFileSmall=UWw/Syi/rleNG795qoREhw==, figureFileBig=U53BP/fijq74BlGx34gGRg==, tableContent=null), ArticleFig(id=1241409543498944764, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=CN, label=图16, caption=
不同岩体力学参数条件下爆破破坏范围对比分析, figureFileSmall=UWw/Syi/rleNG795qoREhw==, figureFileBig=U53BP/fijq74BlGx34gGRg==, tableContent=null), ArticleFig(id=1241409543607996671, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=EN, label=Table 1, caption=
Mechanical parameters of PMMA panels
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 单位 | 数值 |
|---|
| 密度ρ | kg·m-3 | 1160 |
| 泊松比v | - | 0.31 |
| 纵波速度Cp | m·s-1 | 2320 |
| 横波速度Cs | m·s-1 | 1260 |
| 动态弹性模量Ed | GPa | 6.1 |
| 断裂能量Gc | J·m-2 | 133 |
), ArticleFig(id=1241409543746408713, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=CN, label=表1, caption=
PMMA板力学参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 单位 | 数值 |
|---|
| 密度ρ | kg·m-3 | 1160 |
| 泊松比v | - | 0.31 |
| 纵波速度Cp | m·s-1 | 2320 |
| 横波速度Cs | m·s-1 | 1260 |
| 动态弹性模量Ed | GPa | 6.1 |
| 断裂能量Gc | J·m-2 | 133 |
), ArticleFig(id=1241409543889015053, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=EN, label=Table 2, caption=
Main parameters of the numerical model
, figureFileSmall=null, figureFileBig=null, tableContent=
| | 参数 | 单位 | 数值 |
|---|
| 矿岩参数 | 矿岩密度ρ | kg·m-3 | 2600 |
| 剪切模量G | GPa | 11.43 |
| 单轴抗压强度fc | MPa | 82.79 |
| 单轴抗拉强度T | MPa | 4.58 |
| 泊松比v | - | 0.20 |
| 损伤常数D1 | - | 0.04 |
| 损伤常数D2 | - | 1 |
| 炸药参数 | 炸药密度ρe | kg·m-3 | 1150 |
| 炸药爆速D | m·s-1 | 5122 |
| 状态方程常数P | GPa | 9.53 |
| 状态方程常数A | GPa | 276.2 |
| 状态方程常数B | GPa | 8.44 |
| 状态方程常数R1 | - | 5.2 |
| 状态方程常数R2 | - | 2.1 |
| 状态方程常数ω | - | 0.53 |
| 初始体积爆轰能Ee | MJ·m-3 | 3870 |
| 空气参数 | 空气密度ρa | kg·m-3 | 1.29 |
| 相对体积V0 | - | 1.0 |
| 初始体积内能Ea | MJ·m-3 | 0 |
), ArticleFig(id=1241409544027427088, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=CN, label=表2, caption=
数值模型主要参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| | 参数 | 单位 | 数值 |
|---|
| 矿岩参数 | 矿岩密度ρ | kg·m-3 | 2600 |
| 剪切模量G | GPa | 11.43 |
| 单轴抗压强度fc | MPa | 82.79 |
| 单轴抗拉强度T | MPa | 4.58 |
| 泊松比v | - | 0.20 |
| 损伤常数D1 | - | 0.04 |
| 损伤常数D2 | - | 1 |
| 炸药参数 | 炸药密度ρe | kg·m-3 | 1150 |
| 炸药爆速D | m·s-1 | 5122 |
| 状态方程常数P | GPa | 9.53 |
| 状态方程常数A | GPa | 276.2 |
| 状态方程常数B | GPa | 8.44 |
| 状态方程常数R1 | - | 5.2 |
| 状态方程常数R2 | - | 2.1 |
| 状态方程常数ω | - | 0.53 |
| 初始体积爆轰能Ee | MJ·m-3 | 3870 |
| 空气参数 | 空气密度ρa | kg·m-3 | 1.29 |
| 相对体积V0 | - | 1.0 |
| 初始体积内能Ea | MJ·m-3 | 0 |
), ArticleFig(id=1241409544140673301, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=EN, label=Table 3, caption=
Numerical calculation scheme for rock mechanics characteristics
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | fc/MPa | T/MPa | E/GPa | ξ |
|---|
| 1 | 99.35 | 4.58 | 27.21 | 0.48 |
| 2 | 91.07 | 4.58 | 27.21 | 0.48 |
| 3 | 74.51 | 4.58 | 27.21 | 0.48 |
| 4 | 66.23 | 4.58 | 27.21 | 0.48 |
| 5 | 82.79 | 5.50 | 27.21 | 0.48 |
| 6 | 82.79 | 5.04 | 27.21 | 0.48 |
| 7 | 82.79 | 4.12 | 27.21 | 0.48 |
| 8 | 82.79 | 3.66 | 27.21 | 0.48 |
| 9 | 82.79 | 4.58 | 32.65 | 0.48 |
| 10 | 82.79 | 4.58 | 29.93 | 0.48 |
| 11 | 82.79 | 4.58 | 24.49 | 0.48 |
| 12 | 82.79 | 4.58 | 21.77 | 0.48 |
| 13 | 82.79 | 4.58 | 27.21 | 0.40 |
| 14 | 82.79 | 4.58 | 27.21 | 0.43 |
| 15 | 82.79 | 4.58 | 27.21 | 0.53 |
| 16 | 82.79 | 4.58 | 27.21 | 0.60 |
), ArticleFig(id=1241409544266502426, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=CN, label=表3, caption=
岩体力学特性数值计算方案
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | fc/MPa | T/MPa | E/GPa | ξ |
|---|
| 1 | 99.35 | 4.58 | 27.21 | 0.48 |
| 2 | 91.07 | 4.58 | 27.21 | 0.48 |
| 3 | 74.51 | 4.58 | 27.21 | 0.48 |
| 4 | 66.23 | 4.58 | 27.21 | 0.48 |
| 5 | 82.79 | 5.50 | 27.21 | 0.48 |
| 6 | 82.79 | 5.04 | 27.21 | 0.48 |
| 7 | 82.79 | 4.12 | 27.21 | 0.48 |
| 8 | 82.79 | 3.66 | 27.21 | 0.48 |
| 9 | 82.79 | 4.58 | 32.65 | 0.48 |
| 10 | 82.79 | 4.58 | 29.93 | 0.48 |
| 11 | 82.79 | 4.58 | 24.49 | 0.48 |
| 12 | 82.79 | 4.58 | 21.77 | 0.48 |
| 13 | 82.79 | 4.58 | 27.21 | 0.40 |
| 14 | 82.79 | 4.58 | 27.21 | 0.43 |
| 15 | 82.79 | 4.58 | 27.21 | 0.53 |
| 16 | 82.79 | 4.58 | 27.21 | 0.60 |
), ArticleFig(id=1241409544388137244, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=EN, label=Table 4, caption=
Simulation results and verification of blasting with clamping effect
, figureFileSmall=null, figureFileBig=null, tableContent=
| d/m | fc/MPa | T/MPa | E/GPa | ξ | 数值计算结果 | 预测结果 | 误差 |
|---|
| 0.1 | 82.79 | 4.58 | 27.21 | 0.48 | 3.9485 | 3.7021 | 0.2464 |
| 0.3 | 82.79 | 4.58 | 27.21 | 0.48 | 1.9545 | 1.9871 | -0.0326 |
| 0.5 | 82.79 | 4.58 | 27.21 | 0.48 | 1.2817 | 1.3199 | -0.0382 |
| 1.0 | 82.79 | 4.58 | 27.21 | 0.48 | 1.1929 | 1.0928 | 0.1001 |
| 1.5 | 82.79 | 4.58 | 27.21 | 0.48 | 1.0624 | 1.0377 | 0.0247 |
| 2.0 | 82.79 | 4.58 | 27.21 | 0.48 | 1.0296 | 1.0218 | 0.0078 |
| 2.5 | 82.79 | 4.58 | 27.21 | 0.48 | 1.0037 | 1.0102 | -0.0065 |
), ArticleFig(id=1241409544501383454, tenantId=1146029695717560320, journalId=1240670690148397066, articleId=1241409517943050644, language=CN, label=表4, caption=
夹制作用爆破模拟结果与验证
, figureFileSmall=null, figureFileBig=null, tableContent=
| d/m | fc/MPa | T/MPa | E/GPa | ξ | 数值计算结果 | 预测结果 | 误差 |
|---|
| 0.1 | 82.79 | 4.58 | 27.21 | 0.48 | 3.9485 | 3.7021 | 0.2464 |
| 0.3 | 82.79 | 4.58 | 27.21 | 0.48 | 1.9545 | 1.9871 | -0.0326 |
| 0.5 | 82.79 | 4.58 | 27.21 | 0.48 | 1.2817 | 1.3199 | -0.0382 |
| 1.0 | 82.79 | 4.58 | 27.21 | 0.48 | 1.1929 | 1.0928 | 0.1001 |
| 1.5 | 82.79 | 4.58 | 27.21 | 0.48 | 1.0624 | 1.0377 | 0.0247 |
| 2.0 | 82.79 | 4.58 | 27.21 | 0.48 | 1.0296 | 1.0218 | 0.0078 |
| 2.5 | 82.79 | 4.58 | 27.21 | 0.48 | 1.0037 | 1.0102 | -0.0065 |
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