Article(id=1276897151670162420, tenantId=1146029695717560320, journalId=1276576982599962646, issueId=1276896975568109838, articleNumber=null, orderNo=null, doi=10.3724/j.slxb.20250513, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1756656000000, receivedDateStr=2025-09-01, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1782365604559, onlineDateStr=2026-06-25, pubDate=1779206400000, pubDateStr=2026-05-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1782365604559, onlineIssueDateStr=2026-06-25, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1782365604559, creator=13701087609, updateTime=1782365604559, updator=13701087609, issue=Issue{id=1276896975568109838, tenantId=1146029695717560320, journalId=1276576982599962646, year='2026', volume='57', issue='5', pageStart='651', pageEnd='808', issueExtLink='null', onlineDate='null', pubDate='1779206400000', pubDateStr='2026-05-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1782365562574, creator='13701087609', updateTime=1782367019422, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1276903086153142605, tenantId=1146029695717560320, journalId=1276576982599962646, issueId=1276896975568109838, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1276903086153142606, tenantId=1146029695717560320, journalId=1276576982599962646, issueId=1276896975568109838, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=691, endPage=703, ext={EN=ArticleExt(id=1276897151871489014, articleId=1276897151670162420, tenantId=1146029695717560320, journalId=1276576982599962646, language=EN, title=Optimization and application of observation systems for elastic wave CT Testing of concrete cut-off walls, columnId=null, journalTitle=Journal of Hydraulic Engineering, columnName=null, runingTitle=null, highlight=null, articleAbstract=
This study aims to assess the applicability of various observation systems for evaluating the quality of concrete cut-off walls using the elastic wave CT method, focusing on their accuracy and reliability in detecting internal defects within the concrete. Five distinct observation system layouts were employed to capture the propagation signals of the simulating elastic wave source within the concrete cut-off wall. The internal structure of the concrete cut-off wall was reconstructed utilizing the shortest-path ray algorithm and the Gauss-Newton inversion method. The performance of each system layout in signal acquisition, data processing, and image reconstruction was compared and analyzed through experiments. The results show that the fixed observation system layout demonstrates superior performance when the depth of the cut-off wall is shallow and the equipment can provide full coverage. The positioning error can be controlled within 0.5 m, with a signal-to-noise ratio higher than 25 dB, ensuring high detection precision. For deep walls exceeding the coverage range of the equipment, mobile observation system layouts show significant advantages. Among them, the balanced and optimized mobile observation system layout is more suitable for rapid, large-scale screening. A practical engineering case confirmed that the balanced and optimized observation system can successfully identify the local defects in a 61 m deep cut-off wall. Through comparative analysis, this study eatablishes a quantitative selection criteria for observation systems based on indicators such as positioning error, relative wave velocity error, and signal-to-noise ratio.
, authors=null, authorsList=Xiang ZHAO, Qingming ZHANG, Yang ZHOU, Lei YANG, Changzheng LI, Bide LI, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1276897156032237589, articleId=1276897151670162420, tenantId=1146029695717560320, journalId=1276576982599962646, language=CN, title=混凝土防渗墙弹性波CT法检测观测系统优化与应用, columnId=0, journalTitle=水利学报, columnName=, runingTitle=null, highlight=null, articleAbstract=
为评估不同观测系统在弹性波CT法检测混凝土防渗墙质量中的适用性,重点分析了其对混凝土内部缺陷检测的准确性和可靠性。分别采用5种不同的观测系统,模拟弹性波源并接收其在混凝土防渗墙中的传播信号。利用最短射线算法和高斯牛顿法重建混凝土防渗墙的内部结构。通过试验对比分析各系统在信号采集、数据处理和图像重建方面的表现。结果显示:当防渗墙深度较浅且现有设备可全覆盖时,固定观测系统表现优异,其反演定位误差可控制在0.5 m以内,信噪比高于25 dB,检测精度高;对于墙体深度超过现有设备覆盖范围时,移动观测系统显出明显优势,其中均衡优化移动观测系统更适用于大范围的快速筛查。工程实例表明,采用均衡优化的移动观测系统可成功识别出61 m深防渗墙中的局部缺陷。本研究通过对比分析,形成了基于定位误差、波速相对误差和信噪比等指标的观测系统定量选择标准。
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1.Yellow River Institute of Hydraulic Research,Zhengzhou 450003,China
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1.黄河水利委员会 黄河水利科学研究院,河南 郑州 450003
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赵祥(1992—),博士,主要从事堤坝安全隐患的探测与监测研究。E-mail:zx_yrihr@163.com
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赵祥(1992—),博士,主要从事堤坝安全隐患的探测与监测研究。E-mail:zx_yrihr@163.com
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1.Yellow River Institute of Hydraulic Research,Zhengzhou 450003,China
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1.黄河水利委员会 黄河水利科学研究院,河南 郑州 450003
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1.Yellow River Institute of Hydraulic Research,Zhengzhou 450003,China
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1.黄河水利委员会 黄河水利科学研究院,河南 郑州 450003
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1.Yellow River Institute of Hydraulic Research,Zhengzhou 450003,China
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1.Yellow River Institute of Hydraulic Research,Zhengzhou 450003,China
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1.黄河水利委员会 黄河水利科学研究院,河南 郑州 450003
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网格离散化及单元和节点的编号示意, figureFileSmall=UgEhKO1tUr9JqVq1h67Dcw==, figureFileBig=D8mBYVJ3IWoyyJT5ZBP9UA==, tableContent=null), ArticleFig(id=1277261265055650019, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=EN, label=Fig.2, caption=
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固定式和移动式观测系统布置示意, figureFileSmall=zixjItas+2JvlX69TLwBkw==, figureFileBig=N5br13xg6hqUk8DqRrW29g==, tableContent=null), ArticleFig(id=1277261265215033573, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=EN, label=Fig.3, caption=
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Forward model ray tracing and gridding diagram, figureFileSmall=YrA+U+K6lMV3JkHIKcvA6g==, figureFileBig=rBTPVzjxTe/B7QgwtUDckQ==, tableContent=null), ArticleFig(id=1277261265416360168, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=CN, label=图4, caption=
正演模型射线路径和网格化图, figureFileSmall=YrA+U+K6lMV3JkHIKcvA6g==, figureFileBig=rBTPVzjxTe/B7QgwtUDckQ==, tableContent=null), ArticleFig(id=1277261265479274729, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=EN, label=Fig.5, caption=
Forward apparent velocity distribution for fixed observation system in Figure 2(a), figureFileSmall=N4UtUFpmubUJ/mfoYhma8g==, figureFileBig=ugyUIj71Gz2rvt0zZxCiqA==, tableContent=null), ArticleFig(id=1277261265546383594, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=CN, label=图5, caption=
固定式观测系统图 2(a)的正演视速度分布, figureFileSmall=N4UtUFpmubUJ/mfoYhma8g==, figureFileBig=ugyUIj71Gz2rvt0zZxCiqA==, tableContent=null), ArticleFig(id=1277261265613492459, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=EN, label=Fig.6, caption=
Forward apparent velocity distribution for minimum overlap mobile acquisition system in Figure 2(b), figureFileSmall=rT+84U0tMbcDTVdo5nXgjw==, figureFileBig=04yBJDCr+H7hDVBXc+W65w==, tableContent=null), ArticleFig(id=1277261265693184236, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=CN, label=图6, caption=
最小重叠移动观测系统图 2(b)的正演视速度分布, figureFileSmall=rT+84U0tMbcDTVdo5nXgjw==, figureFileBig=04yBJDCr+H7hDVBXc+W65w==, tableContent=null), ArticleFig(id=1277261265789653229, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=EN, label=Fig.7, caption=
Forward apparent velocity distribution of secondary observations for the mobile observation system in Figures 2(c)-(e), figureFileSmall=7+DbLM1rhV6pe2pEvls0QQ==, figureFileBig=1PYYrOPPPkZo75EprhyqnA==, tableContent=null), ArticleFig(id=1277261265856762094, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=CN, label=图7, caption=
移动式观测系统图 2(c)—(e)二次观测结果的正演视速度分布, figureFileSmall=7+DbLM1rhV6pe2pEvls0QQ==, figureFileBig=1PYYrOPPPkZo75EprhyqnA==, tableContent=null), ArticleFig(id=1277261265919676655, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=EN, label=Fig.8, caption=
Mesh discretization and ray tracing of fixed observation system in Figure 2(a), figureFileSmall=2Sd4h3Y9KASQuIwzMYSSkw==, figureFileBig=Y+bqwIvnoevDg5WcfLxUuw==, tableContent=null), ArticleFig(id=1277261265995174128, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=CN, label=图8, caption=
固定式观测系统图2(a)网格剖分和射线路径, figureFileSmall=2Sd4h3Y9KASQuIwzMYSSkw==, figureFileBig=Y+bqwIvnoevDg5WcfLxUuw==, tableContent=null), ArticleFig(id=1277261266049700081, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=EN, label=Fig.9, caption=
Inversion results diagram for fixed and minimum overlap mobile observation systems, figureFileSmall=anfV3g1opRq/ZeKlU2FgBw==, figureFileBig=UDXFl84Dlwwz3PJJUs73kA==, tableContent=null), ArticleFig(id=1277261266125197554, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=CN, label=图9, caption=
固定式和最小重叠移动观测系统反演结果, figureFileSmall=anfV3g1opRq/ZeKlU2FgBw==, figureFileBig=UDXFl84Dlwwz3PJJUs73kA==, tableContent=null), ArticleFig(id=1277261266196500723, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=EN, label=Fig.10, caption=
Inversion results diagram for maximum ray density mobile observation system, figureFileSmall=STywKvObGvX2AMAVEhEvww==, figureFileBig=+jCmX8qNkGJa6HgsrBV+GA==, tableContent=null), ArticleFig(id=1277261266276192500, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=CN, label=图10, caption=
最大射线密度移动观测系统反演结果, figureFileSmall=STywKvObGvX2AMAVEhEvww==, figureFileBig=+jCmX8qNkGJa6HgsrBV+GA==, tableContent=null), ArticleFig(id=1277261266330718453, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=EN, label=Fig.11, caption=
Inversion results diagram for balanced optimization and symmetric rolling observation system, figureFileSmall=jqWVsB16Gli+CXWhmQM/dA==, figureFileBig=IpPQzql2gyC3UG/ny4lRaQ==, tableContent=null), ArticleFig(id=1277261266402021622, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=CN, label=图11, caption=
均衡优化和对称滚动观测系统反演结果, figureFileSmall=jqWVsB16Gli+CXWhmQM/dA==, figureFileBig=IpPQzql2gyC3UG/ny4lRaQ==, tableContent=null), ArticleFig(id=1277261266477519095, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=EN, label=Fig.12, caption=
Longitudinal section drawing of dam concrete cutoff wall(Unit:m), figureFileSmall=scJ2PfGDV4tRrEcSh26iDg==, figureFileBig=B8qbyXghIVbN6WtQ3AqLpA==, tableContent=null), ArticleFig(id=1277261266544627960, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=CN, label=图12, caption=
大坝混凝土防渗墙纵剖面图(单位:m), figureFileSmall=scJ2PfGDV4tRrEcSh26iDg==, figureFileBig=B8qbyXghIVbN6WtQ3AqLpA==, tableContent=null), ArticleFig(id=1277261266607542521, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=EN, label=Fig.13, caption=
Schematic diagram of observation system layout for field elastic wave CT detection, figureFileSmall=qHfyunvQn4U20SvYRKsIUw==, figureFileBig=segdVeJD6eyjID5Q0l+AcQ==, tableContent=null), ArticleFig(id=1277261266666262778, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=CN, label=图13, caption=
现场弹性波CT检测观测系统布置示意, figureFileSmall=qHfyunvQn4U20SvYRKsIUw==, figureFileBig=segdVeJD6eyjID5Q0l+AcQ==, tableContent=null), ArticleFig(id=1277261266741760251, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=EN, label=Fig.14, caption=
Schematic diagram of elastic wave CT and single-hole acoustic wave field test, figureFileSmall=kzGOMxVXfdFmzIas+xttvw==, figureFileBig=5jKBbWPflfm9GqfD/a5ssA==, tableContent=null), ArticleFig(id=1277261266804674812, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=CN, label=图14, caption=
弹性波CT和单孔声波现场测试示意, figureFileSmall=kzGOMxVXfdFmzIas+xttvw==, figureFileBig=5jKBbWPflfm9GqfD/a5ssA==, tableContent=null), ArticleFig(id=1277261266859200765, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=EN, label=Fig.15, caption=
Diagram of results from elastic wave CT and single-hole acoustic wave, figureFileSmall=LRmDbM0zNsRof+3TyVciPQ==, figureFileBig=HPkmArvvr6Q+YIuV1LWJ+w==, tableContent=null), ArticleFig(id=1277261266922115326, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=CN, label=图15, caption=
弹性波CT和单孔声波检测成果, figureFileSmall=LRmDbM0zNsRof+3TyVciPQ==, figureFileBig=HPkmArvvr6Q+YIuV1LWJ+w==, tableContent=null), ArticleFig(id=1277261266985029887, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=EN, label=Table 1, caption=
Comparison of observation system parameters in figure 2
, figureFileSmall=null, figureFileBig=null, tableContent=
| 观测系统类型 | 深度/m | 炮间距/m | 道间距/m | 激发次数 | 射线数量 | 射线密度/(条/m2) |
| 图2(a)固定式观测系统 | 30 | 2 | 2 | 15 | 225 | 0.40 |
| 图2(b)最小重叠移动观测系统 | 30 | 2 | 2 | 16 | 136 | 0.24 |
| 图2(c)最大射线密度移动观测系统 | 30 | 2 | 2 | 20 | 300 | 0.54 |
| 图2(d)均衡优化移动观测系统 | 30 | 2 | 2 | 15 | 150 | 0.27 |
| 图2(e)对称滚动移动观测系统 | 30 | 2 | 2 | 16 | 160 | 0.29 |
), ArticleFig(id=1277261267039555840, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=CN, label=表1, caption=
图2中各观测系统参数信息对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 观测系统类型 | 深度/m | 炮间距/m | 道间距/m | 激发次数 | 射线数量 | 射线密度/(条/m2) |
| 图2(a)固定式观测系统 | 30 | 2 | 2 | 15 | 225 | 0.40 |
| 图2(b)最小重叠移动观测系统 | 30 | 2 | 2 | 16 | 136 | 0.24 |
| 图2(c)最大射线密度移动观测系统 | 30 | 2 | 2 | 20 | 300 | 0.54 |
| 图2(d)均衡优化移动观测系统 | 30 | 2 | 2 | 15 | 150 | 0.27 |
| 图2(e)对称滚动移动观测系统 | 30 | 2 | 2 | 16 | 160 | 0.29 |
), ArticleFig(id=1277261267127636225, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=EN, label=Table 2, caption=
Comparison of inversion performance among five observation systems
, figureFileSmall=null, figureFileBig=null, tableContent=
| 观测系统类型 | 最大定位误差/m | 波速相对误差/% | SNR/dB | 数据拼接误差/m |
| 固定式观测系统 | 0.3 | 5.2 | 28.6 | |
| 最小重叠移动观测系统 | 1.2 | 12.5 | 20.3 | 0.8 |
| 最大射线密度移动观测系统 | 0.5 | 6.8 | 26.1 | 0.3 |
| 均衡优化移动观测系统 | 0.7 | 7.5 | 24.8 | 0.5 |
| 对称滚动移动观测系统 | 0.8 | 8.1 | 23.5 | 0.6 |
), ArticleFig(id=1277261267203133698, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=CN, label=表 2, caption=
5种观测系统反演效果对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 观测系统类型 | 最大定位误差/m | 波速相对误差/% | SNR/dB | 数据拼接误差/m |
| 固定式观测系统 | 0.3 | 5.2 | 28.6 | |
| 最小重叠移动观测系统 | 1.2 | 12.5 | 20.3 | 0.8 |
| 最大射线密度移动观测系统 | 0.5 | 6.8 | 26.1 | 0.3 |
| 均衡优化移动观测系统 | 0.7 | 7.5 | 24.8 | 0.5 |
| 对称滚动移动观测系统 | 0.8 | 8.1 | 23.5 | 0.6 |
), ArticleFig(id=1277261267295408387, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=EN, label=Table 3, caption=
Comparison of parameter information across different observation systems for field elastic wave CT
, figureFileSmall=null, figureFileBig=null, tableContent=
| 观测系统类型 | 激发孔深/m | 接收孔深/m | 炮间距/m | 道间距/m | 激发次数 | 射线数量 |
| 最小重叠移动观测系统 | 61 | 57 | 1 | 1 | 63 | 1512 |
| 最大射线密度移动观测系统 | 61 | 57 | 1 | 1 | 100 | 2400 |
| 均衡优化移动观测系统 | 61 | 57 | 1 | 1 | 62 | 1488 |
| 对称滚动移动观测系统 | 61 | 57 | 1 | 1 | 65 | 1560 |
), ArticleFig(id=1277261267362517252, tenantId=1146029695717560320, journalId=1276576982599962646, articleId=1276897151670162420, language=CN, label=表 3, caption=
现场弹性波CT检测各观测系统参数信息对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 观测系统类型 | 激发孔深/m | 接收孔深/m | 炮间距/m | 道间距/m | 激发次数 | 射线数量 |
| 最小重叠移动观测系统 | 61 | 57 | 1 | 1 | 63 | 1512 |
| 最大射线密度移动观测系统 | 61 | 57 | 1 | 1 | 100 | 2400 |
| 均衡优化移动观测系统 | 61 | 57 | 1 | 1 | 62 | 1488 |
| 对称滚动移动观测系统 | 61 | 57 | 1 | 1 | 65 | 1560 |
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