Article(id=1228634334014403446, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1228634329748796239, articleNumber=null, orderNo=null, doi=10.16385/j.cnki.issn.1004-4523.2024.08.017, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1663862400000, receivedDateStr=2022-09-23, revisedDate=1682611200000, revisedDateStr=2023-04-28, acceptedDate=null, acceptedDateStr=null, onlineDate=1770858852151, onlineDateStr=2026-02-12, pubDate=1724774400000, pubDateStr=2024-08-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1770858852151, onlineIssueDateStr=2026-02-12, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1770858852151, creator=13701087609, updateTime=1770858852151, updator=13701087609, issue=Issue{id=1228634329748796239, tenantId=1146029695717560320, journalId=1225147924628267009, year='2024', volume='37', issue='8', pageStart='1269', pageEnd='1450', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1770858851134, creator=13701087609, updateTime=1770859054135, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1228635181259620818, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1228634329748796239, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1228635181263815123, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1228634329748796239, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1431, endPage=1441, ext={EN=ArticleExt(id=1228634334207341437, articleId=1228634334014403446, tenantId=1146029695717560320, journalId=1225147924628267009, language=EN, title=PCA-GWO-SVR machine learning applied to prediction of peak vibration velocity of slope blasting, columnId=null, journalTitle=Journal of Vibration Engineering, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Aiming at the low accuracy of traditional empirical formulas in complex site environment,a predictive model for peak blasting vibration velocity based on grey wolf optimization support vector regression (PCA-GWO-SVR) with principal component analysis (PCA) feature selection is proposed. Based on the monitoring data of blasting excavation of dam abutment trough on the right bank of Baihetan Hydropower Station,the blasting center distance,maximum single-shot charge quantity,elevation difference,longitudinal wave velocity,bore spacing and bore row distance are selected as input parameters,and the characteristic values are selected by data dimension reduction of PCA,and the six selected features are dimensionally reduced to four characteristics with higher correlation. Support vector regression (SVR) is improved by grey wolf optimization algorithm (GWO) to obtain the optimal parameters. Parameters are input into the SVR model for evaluation. The research results show that the PCA-GWO-SVR algorithm has better agreement with the predicted values and the measured values of Sadowski formula,improved Sadowski formula,SVR,PCA-SVR,GWO-SVR. The predicted results are more accurate and can predict the peak value of blasting vibration of slope more effectively,which provides help for safety control of blasting construction of slope.
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针对复杂场地环境下传统经验公式预测精度不高的问题,提出了一种主成分分析(PCA)特征选取下基于灰狼优化支持向量回归机算法(PCA-GWO-SVR)的爆破振动速度峰值预测模型。以白鹤滩水电站右岸坝肩槽爆破开挖监测数据为依据,选取爆心距、单响药量、高程差、纵波波速、炮孔间距、炮孔排距作为输入参数,通过PCA的数据降维对特征值进行选取,将选取的6种特征降维后化为4种相关性更高的特征;使用灰狼优化算法(GWO)改进支持向量回归机(SVR)以获取最优参数;将参数输入到SVR模型中进行计算评估。研究结果表明:PCA-GWO-SVR算法对比萨道夫斯基公式,改进的萨道夫斯基公式,SVR,PCA-SVR和GWO-SVR的预测值和实测值的吻合效果更好,预测结果的准确度更高,更能有效地预测边坡爆破振动峰值,为边坡爆破施工安全控制提供帮助。
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1Hubei Key Laboratory of Construction and Management in Hydropower Engineering,China Three Gorges University,Yichang 443002,China
2College of Hydraulic & Environmental Engineering,China Three Gorges University,Yichang 443002,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1228634358161011318, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, authorId=1228634357934518888, language=CN, stringName=范勇, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1三峡大学湖北省水电工程施工与管理重点实验室, 湖北 宜昌 443002
2三峡大学水利与环境学院, 湖北 宜昌 443002, bio={"content":"
范 勇(1988—),男,博士,教授。 E-mail: yfan@ctgu.edu.cn。
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范 勇(1988—),男,博士,教授。 E-mail: yfan@ctgu.edu.cn。
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1Hubei Key Laboratory of Construction and Management in Hydropower Engineering,China Three Gorges University,Yichang 443002,China
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1三峡大学湖北省水电工程施工与管理重点实验室, 湖北 宜昌 443002
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1Hubei Key Laboratory of Construction and Management in Hydropower Engineering,China Three Gorges University,Yichang 443002,China
2College of Hydraulic & Environmental Engineering,China Three Gorges University,Yichang 443002,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1228634360098779799, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, authorId=1228634359910036109, language=CN, stringName=杨广栋, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1三峡大学湖北省水电工程施工与管理重点实验室, 湖北 宜昌 443002
2三峡大学水利与环境学院, 湖北 宜昌 443002, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1228634357632528981, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, xref=1, ext=[AuthorCompanyExt(id=1228634357640917590, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, companyId=1228634357632528981, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1Hubei Key Laboratory of Construction and Management in Hydropower Engineering,China Three Gorges University,Yichang 443002,China
2College of Hydraulic & Environmental Engineering,China Three Gorges University,Yichang 443002,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1228634360417546918, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, authorId=1228634360224608924, language=CN, stringName=崔先泽, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1三峡大学湖北省水电工程施工与管理重点实验室, 湖北 宜昌 443002
2三峡大学水利与环境学院, 湖北 宜昌 443002, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1228634357632528981, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, xref=1, ext=[AuthorCompanyExt(id=1228634357640917590, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, companyId=1228634357632528981, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1, 3, address=
1Hubei Key Laboratory of Construction and Management in Hydropower Engineering,China Three Gorges University,Yichang 443002,China
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1三峡大学湖北省水电工程施工与管理重点实验室, 湖北 宜昌 443002
3长安大学公路学院, 陕西 西安 710064, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1228634357632528981, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, xref=1, ext=[AuthorCompanyExt(id=1228634357640917590, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, companyId=1228634357632528981, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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GWO algorithm flow diagram[20], figureFileSmall=YJkkaFRvGIMnhr7Pl+zaLA==, figureFileBig=I5vnkYtd9GdXFShAEGLYKA==, tableContent=null), ArticleFig(id=1228634361973633778, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=CN, label=图1, caption=
GWO算法流程图[20], figureFileSmall=YJkkaFRvGIMnhr7Pl+zaLA==, figureFileBig=I5vnkYtd9GdXFShAEGLYKA==, tableContent=null), ArticleFig(id=1228634362158183167, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=EN, label=Fig.2, caption=
Structure diagram of SVR[25], figureFileSmall=YyU/Eq68cpJsub7/zf81NQ==, figureFileBig=e+c50SV0/R5qdnHyOIVzSg==, tableContent=null), ArticleFig(id=1228634362250457860, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=CN, label=图2, caption=
SVR结构图[25], figureFileSmall=YyU/Eq68cpJsub7/zf81NQ==, figureFileBig=e+c50SV0/R5qdnHyOIVzSg==, tableContent=null), ArticleFig(id=1228634362346926856, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=EN, label=Fig.3, caption=
PCA-GWO-SVR model flow diagram, figureFileSmall=QgVP565dy5pniwA19M199g==, figureFileBig=3+rJ+TqR6gJOgYq/h/lXrQ==, tableContent=null), ArticleFig(id=1228634362548253458, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=CN, label=图3, caption=
PCA-GWO-SVR模型流程图, figureFileSmall=QgVP565dy5pniwA19M199g==, figureFileBig=3+rJ+TqR6gJOgYq/h/lXrQ==, tableContent=null), ArticleFig(id=1228634362648916756, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=EN, label=Fig.4, caption=
Panorama of Baihetan hydropower station, figureFileSmall=6+6LRKWDWLPBHTnMX/+tQA==, figureFileBig=MTaQigWmobjKnNvSagl5Wg==, tableContent=null), ArticleFig(id=1228634364037231388, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=CN, label=图4, caption=
白鹤滩水电站工程全貌, figureFileSmall=6+6LRKWDWLPBHTnMX/+tQA==, figureFileBig=MTaQigWmobjKnNvSagl5Wg==, tableContent=null), ArticleFig(id=1228634364116923170, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=EN, label=Fig.5, caption=
Typical radial profile of excavated slope of dam abutment groove[29], figureFileSmall=2bZGsyKAznGa7l0M2vHcmA==, figureFileBig=W7nBJ0/u2Zhb4HVHMNFLUA==, tableContent=null), ArticleFig(id=1228634364213392168, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=CN, label=图5, caption=
坝肩槽开挖边坡典型径向剖面[29], figureFileSmall=2bZGsyKAznGa7l0M2vHcmA==, figureFileBig=W7nBJ0/u2Zhb4HVHMNFLUA==, tableContent=null), ArticleFig(id=1228634364309861162, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=EN, label=Fig.6, caption=
Blasting design and vibration test, figureFileSmall=s22grj3mi4IfSZN/U0+cLw==, figureFileBig=S94M5y+02uAE9LawyAKGVg==, tableContent=null), ArticleFig(id=1228634364423107377, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=CN, label=图6, caption=
爆破设计及振动监测试验, figureFileSmall=s22grj3mi4IfSZN/U0+cLw==, figureFileBig=S94M5y+02uAE9LawyAKGVg==, tableContent=null), ArticleFig(id=1228634364536353586, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=EN, label=Fig.7, caption=
Waveform diagram of measured blasting vibration, figureFileSmall=SLapzVF/6Fus2Ds0tBRKsg==, figureFileBig=ub99vU1Q6SvBKTEqmBNdfg==, tableContent=null), ArticleFig(id=1228634364620239671, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=CN, label=图7, caption=
实测爆破振动波形图, figureFileSmall=SLapzVF/6Fus2Ds0tBRKsg==, figureFileBig=ub99vU1Q6SvBKTEqmBNdfg==, tableContent=null), ArticleFig(id=1228634364691542843, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=EN, label=Fig.8, caption=
Acoustic wave hole layout and field acoustic wave detection, figureFileSmall=aygwI6BItuWeLLywuqFlXw==, figureFileBig=kgJgHoIr2OxpAkzQcy3vvQ==, tableContent=null), ArticleFig(id=1228634364792206145, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=CN, label=图8, caption=
声波孔布置及现场声波监测, figureFileSmall=aygwI6BItuWeLLywuqFlXw==, figureFileBig=kgJgHoIr2OxpAkzQcy3vvQ==, tableContent=null), ArticleFig(id=1228634364884480834, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=EN, label=Fig.9, caption=
Acoustic wave test results of rock mass before and after 824~834 m blasting, figureFileSmall=UkqiPUoLatrzWRZooj6m/w==, figureFileBig=U5i4ipzmrvPiGAGnr9jm4g==, tableContent=null), ArticleFig(id=1228634364964172612, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=CN, label=图9, caption=
824~834 m爆前、爆后岩体声波测试结果, figureFileSmall=UkqiPUoLatrzWRZooj6m/w==, figureFileBig=U5i4ipzmrvPiGAGnr9jm4g==, tableContent=null), ArticleFig(id=1228634365039670088, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=EN, label=Fig.10, caption=
Comparison between measured values and predicted values of the last 11 groups of data, figureFileSmall=jQQgStwGRDhrks3TcY9BiA==, figureFileBig=o7AOYxNdOsLXM6Z1ogzcXw==, tableContent=null), ArticleFig(id=1228634365115167566, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=CN, label=图10, caption=
后11组数据实测值与预测值对比, figureFileSmall=jQQgStwGRDhrks3TcY9BiA==, figureFileBig=o7AOYxNdOsLXM6Z1ogzcXw==, tableContent=null), ArticleFig(id=1228634365190665043, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=EN, label=Fig.11, caption=
GWO-SVR fitness curve, figureFileSmall=woh3nrO2dgtHA4elz0fdTQ==, figureFileBig=Gf9J+JiBiJ+i1dEIwKVlBA==, tableContent=null), ArticleFig(id=1228634365287134038, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=CN, label=图11, caption=
GWO-SVR适应度曲线, figureFileSmall=woh3nrO2dgtHA4elz0fdTQ==, figureFileBig=Gf9J+JiBiJ+i1dEIwKVlBA==, tableContent=null), ArticleFig(id=1228634365379408729, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=EN, label=Fig.12, caption=
PCA dimension reduction input parameter ratio diagram, figureFileSmall=IChEV908uvOrflIbylmpew==, figureFileBig=Jua/qhbwJc/UwR6160EHgw==, tableContent=null), ArticleFig(id=1228634365488460638, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=CN, label=图12, caption=
PCA降维输入参数占比图, figureFileSmall=IChEV908uvOrflIbylmpew==, figureFileBig=Jua/qhbwJc/UwR6160EHgw==, tableContent=null), ArticleFig(id=1228634365580735330, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=EN, label=Fig.13, caption=
PCA-GWO-SVR fitness curve, figureFileSmall=LEhbpR9VK12ZlxRIzZiQdw==, figureFileBig=csAH4kGQpjobumPuVPeocQ==, tableContent=null), ArticleFig(id=1228634365693981543, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=CN, label=图13, caption=
PCA-GWO-SVR适应度曲线, figureFileSmall=LEhbpR9VK12ZlxRIzZiQdw==, figureFileBig=csAH4kGQpjobumPuVPeocQ==, tableContent=null), ArticleFig(id=1228634365958222696, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=EN, label=Fig.14, caption=
Comparison between measured values and predicted values of four models, figureFileSmall=d/iVcZTdzIHlkIjnbIpbgQ==, figureFileBig=p971prreGICznNvm8wzPkQ==, tableContent=null), ArticleFig(id=1228634366092440430, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=CN, label=图14, caption=
四种模型实测值与预测值对比, figureFileSmall=d/iVcZTdzIHlkIjnbIpbgQ==, figureFileBig=p971prreGICznNvm8wzPkQ==, tableContent=null), ArticleFig(id=1228634366193103733, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=EN, label=Fig.15, caption=
Error analysis of predicted results of four models and two formulas, figureFileSmall=6IIrs+n2enqqDwvj1tsOHw==, figureFileBig=4B6Mp+accSCoqrH2TeIC9A==, tableContent=null), ArticleFig(id=1228634366289572730, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=CN, label=图15, caption=
四种模型和两种公式预测结果误差分析, figureFileSmall=6IIrs+n2enqqDwvj1tsOHw==, figureFileBig=4B6Mp+accSCoqrH2TeIC9A==, tableContent=null), ArticleFig(id=1228634366369264512, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=EN, label=Tab.1, caption=
824~834 m blasting parameters
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| 序号 | 孔名 | 钻孔参数 | 装药参数 |
|---|
| 孔距/m | 孔深/m | 孔径/mm | 药卷直径/mm | 堵塞长度/m | 单孔药量/kg | 最大单响药量/kg | 总装药量/kg |
|---|
| 1 | 预裂孔 | 0.55~0.80 | 2.2~11.7 | 90 | 32 | 0.5~2.0 | 2.40~3.75 | 18.75 | 800 |
| 2 | 缓冲孔 | 1.8 | 9.5~11.7 | 90 | 70 | 0.8~2.0 | 15.0~19.5 | 39 |
| 3 | 主爆孔 | 3.0 | 9.5~11.7 | 90 | 70 | 0.8~2.0 | 21.0~27.0 | 54 |
), ArticleFig(id=1228634366478316420, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=CN, label=表1, caption=
824~834 m爆破参数
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| 序号 | 孔名 | 钻孔参数 | 装药参数 |
|---|
| 孔距/m | 孔深/m | 孔径/mm | 药卷直径/mm | 堵塞长度/m | 单孔药量/kg | 最大单响药量/kg | 总装药量/kg |
|---|
| 1 | 预裂孔 | 0.55~0.80 | 2.2~11.7 | 90 | 32 | 0.5~2.0 | 2.40~3.75 | 18.75 | 800 |
| 2 | 缓冲孔 | 1.8 | 9.5~11.7 | 90 | 70 | 0.8~2.0 | 15.0~19.5 | 39 |
| 3 | 主爆孔 | 3.0 | 9.5~11.7 | 90 | 70 | 0.8~2.0 | 21.0~27.0 | 54 |
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Blasting vibration data of the right bank dam abutment groove of Baihetan
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| 序号 | Q/kg | R/m | H/m | Cp/(m·s‒1) | a/m | b/m | PPV/(m·s‒1) |
|---|
| 1 | 63.68 | 11.8 | 10 | 3737 | 0.80 | 0.80 | 9.53 |
| 2 | 63.68 | 23.8 | 20 | 4292 | 0.78 | 0.78 | 4.94 |
| 3 | 56.85 | 23.8 | 20 | 4536 | 0.70 | 0.70 | 6.74 |
| 4 | 50.25 | 23.4 | 20 | 4567 | 0.74 | 0.74 | 6.47 |
| 5 | 20.80 | 60.5 | 50 | 4375 | 0.73 | 0.73 | 1.21 |
| 6 | 20.80 | 48.3 | 40 | 4375 | 0.73 | 0.73 | 2.83 |
| 7 | 20.80 | 48.3 | 40 | 4199 | 0.70 | 0.70 | 2.12 |
| 8 | 56.85 | 36.1 | 30 | 4536 | 0.70 | 0.70 | 3.67 |
| 9 | 63.68 | 11.8 | 10 | 4292 | 0.78 | 0.78 | 8.24 |
| ··· | ··· | ··· | ··· | ··· | ··· | ··· | ··· |
| 107 | 64.87 | 24 | 20 | 4755 | 0.80 | 0.80 | 5.27 |
), ArticleFig(id=1228634366704808843, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=CN, label=表2, caption=
白鹤滩右岸坝肩槽爆破振动数据
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | Q/kg | R/m | H/m | Cp/(m·s‒1) | a/m | b/m | PPV/(m·s‒1) |
|---|
| 1 | 63.68 | 11.8 | 10 | 3737 | 0.80 | 0.80 | 9.53 |
| 2 | 63.68 | 23.8 | 20 | 4292 | 0.78 | 0.78 | 4.94 |
| 3 | 56.85 | 23.8 | 20 | 4536 | 0.70 | 0.70 | 6.74 |
| 4 | 50.25 | 23.4 | 20 | 4567 | 0.74 | 0.74 | 6.47 |
| 5 | 20.80 | 60.5 | 50 | 4375 | 0.73 | 0.73 | 1.21 |
| 6 | 20.80 | 48.3 | 40 | 4375 | 0.73 | 0.73 | 2.83 |
| 7 | 20.80 | 48.3 | 40 | 4199 | 0.70 | 0.70 | 2.12 |
| 8 | 56.85 | 36.1 | 30 | 4536 | 0.70 | 0.70 | 3.67 |
| 9 | 63.68 | 11.8 | 10 | 4292 | 0.78 | 0.78 | 8.24 |
| ··· | ··· | ··· | ··· | ··· | ··· | ··· | ··· |
| 107 | 64.87 | 24 | 20 | 4755 | 0.80 | 0.80 | 5.27 |
), ArticleFig(id=1228634366805472142, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=EN, label=Tab.3, caption=
Fitting results of two formulas
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| 序号 | 类型 | 参数值 |
|---|
| α1 | β1 | k | r2 |
|---|
| 1 | 96组 | 0.90 | - | 32.29 | 0.65 |
| 824~834 m | 1.77 | - | 365.74 | 0.88 |
| 2 | 96组 | 0.85 | 0.06 | 31.02 | 0.69 |
| 824~834 m | 1.77 | -1.40 | 60.19 | 0.76 |
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两种公式拟合结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 类型 | 参数值 |
|---|
| α1 | β1 | k | r2 |
|---|
| 1 | 96组 | 0.90 | - | 32.29 | 0.65 |
| 824~834 m | 1.77 | - | 365.74 | 0.88 |
| 2 | 96组 | 0.85 | 0.06 | 31.02 | 0.69 |
| 824~834 m | 1.77 | -1.40 | 60.19 | 0.76 |
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Comparison of forecast errors of two formulas
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| 序号 | 实测值/(cm·s‒1) | 萨道夫斯基公式 | 改进萨道夫斯基公式 |
|---|
| 预测值/(cm·s‒1) | 误差/% | 预测值/(cm·s‒1) | 误差/% |
|---|
| 1 | 11.18 | 30.46 | 172.44 | 16.01 | 43.22 |
| 2 | 9.55 | 26.18 | 174.14 | 13.23 | 38.55 |
| 3 | 3.32 | 8.02 | 141.63 | 7.87 | 136.99 |
| 4 | 2.76 | 8.02 | 190.66 | 7.87 | 185.07 |
| 5 | 2.93 | 8.27 | 182.13 | 8.17 | 178.88 |
), ArticleFig(id=1228634367057130396, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=CN, label=表4, caption=
两种公式预测误差对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 实测值/(cm·s‒1) | 萨道夫斯基公式 | 改进萨道夫斯基公式 |
|---|
| 预测值/(cm·s‒1) | 误差/% | 预测值/(cm·s‒1) | 误差/% |
|---|
| 1 | 11.18 | 30.46 | 172.44 | 16.01 | 43.22 |
| 2 | 9.55 | 26.18 | 174.14 | 13.23 | 38.55 |
| 3 | 3.32 | 8.02 | 141.63 | 7.87 | 136.99 |
| 4 | 2.76 | 8.02 | 190.66 | 7.87 | 185.07 |
| 5 | 2.93 | 8.27 | 182.13 | 8.17 | 178.88 |
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Comparison of evaluation indexes after prediction of four models
, figureFileSmall=null, figureFileBig=null, tableContent=
| 训练模型 | 评价指标 |
|---|
| r2 | MAE | RMSE | MAPE/% |
|---|
| SVR | 0.628 | 2.697 | 1.461 | 25.51 |
| PCA-SVR | 0.524 | 3.185 | 1.251 | 33.04 |
| GWO-SVR | 0.786 | 1.161 | 0.785 | 18.35 |
| PCA-GWO-SVR | 0.949 | 0.285 | 0.435 | 8.41 |
), ArticleFig(id=1228634367250068390, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228634334014403446, language=CN, label=表5, caption=
四种模型预测后评价指标对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 训练模型 | 评价指标 |
|---|
| r2 | MAE | RMSE | MAPE/% |
|---|
| SVR | 0.628 | 2.697 | 1.461 | 25.51 |
| PCA-SVR | 0.524 | 3.185 | 1.251 | 33.04 |
| GWO-SVR | 0.786 | 1.161 | 0.785 | 18.35 |
| PCA-GWO-SVR | 0.949 | 0.285 | 0.435 | 8.41 |
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