10th International Workshop on Advanced Ground Penetrating Radar最新文献_第2页

Mutually Constrained Inversion of Common Offset GPR Reflection and Surface Wave Dispersion Data in Layered Media 层状介质中共偏移GPR反射与面波色散数据的相互约束反演

10th International Workshop on Advanced Ground Penetrating Radar Pub Date : 2019-09-08 DOI: 10.3997/2214-4609.201902568

Shufan Hu, Yonghui Zhao, S. Ge

{"title":"Mutually Constrained Inversion of Common Offset GPR Reflection and Surface Wave Dispersion Data in Layered Media","authors":"Shufan Hu, Yonghui Zhao, S. Ge","doi":"10.3997/2214-4609.201902568","DOIUrl":"https://doi.org/10.3997/2214-4609.201902568","url":null,"abstract":"Summary Ground penetrating radar (GPR) and seismic surface wave methods (SWMs) are widely used in near-surface surveys. For the most frequently used common offset GPR reflection data, a key requirement for proper imaging of subsurface reflectors is an accurate velocity model, especially when dipping layers are present in the subsurface. For the inversion of surface wave data in a layered system, the model parameterization is critical if a priori information is not available. Here, we presented a possible way for mutually constrained inversion of the common offset GPR reflection traveltime and surface wave dispersion data. We used the depth of interfaces to link the model parameters of GPR and the surface wave method based on structural similarity. The parameterization problem of the surface wave data inversion is mitigated by using interface constraints from GPR profile, we then inverted the layered model parameters including thickness and velocities of EM wave and shear wave simultaneously by using the alternate coupling strategy. Test on a synthetic example showed that the estimation of depth and EM velocity in GPR result is significantly improved, while, the simultaneous use of both datasets could provide a reliable parametrization for the surface wave inversion.","PeriodicalId":162237,"journal":{"name":"10th International Workshop on Advanced Ground Penetrating Radar","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128058798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of the tide on permittivity values obtained on a reinforced concrete bridge in marine environment 潮汐对海洋环境中钢筋混凝土桥梁介电常数的影响

10th International Workshop on Advanced Ground Penetrating Radar Pub Date : 2019-09-08 DOI: 10.3997/2214-4609.201902600

X. Dérobert, L. Bourreau, W. Lai, V. Bourreau, Y. S. Chan, F. C. Sham

引用次数: 0

Preliminary development of a workflow for processing multi-concurrent receiver GPR data 多并发GPR数据处理流程的初步开发

10th International Workshop on Advanced Ground Penetrating Radar Pub Date : 2019-09-08 DOI: 10.3997/2214-4609.201902572

D. Angelis, C. Warren, N. Diamanti

{"title":"Preliminary development of a workflow for processing multi-concurrent receiver GPR data","authors":"D. Angelis, C. Warren, N. Diamanti","doi":"10.3997/2214-4609.201902572","DOIUrl":"https://doi.org/10.3997/2214-4609.201902572","url":null,"abstract":"Summary Recent advances in timing and control technology have allowed the development of multi-concurrent receiver Ground Penetrating Radar (GPR) systems. These types of system enable rapid acquisition of Wide-Angle Reflection and Refraction (WARR) data and have the potential to provide a wide range of benefits, including improved velocity models. However, the high volume of data that can be generated, as well as the fact that these systems are new and continually being developed, demands research and automation of new processing workflows. Numerical modeling is gradually becoming a standard approach in GPR for testing new processing schemes/algorithms and guiding interpretation of real data. Nevertheless, simulations can require detailed models of antennas, targets, and structures, which can be time-consuming to create programmatically. In this work, we demonstrate a graphical user interface (GUI) tool for rapidly designing and building complex geometries that can be used in numerical simulations for GPR. We then use this toolset to generate realistic WARR data to test automatic first break/time-offset correction algorithms we have developed. These algorithms form the initial steps of our workflow for processing WARR data.","PeriodicalId":162237,"journal":{"name":"10th International Workshop on Advanced Ground Penetrating Radar","volume":"37 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113969293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A Tomographic Inversion Approach for the Detection of Decay and Cavities in Tree Trunks using Ground Penetrating Radar 探地雷达探测树干腐烂和空洞的层析反演方法

10th International Workshop on Advanced Ground Penetrating Radar Pub Date : 2019-09-08 DOI: 10.3997/2214-4609.201902567

A. Alani, F. Soldovieri, G. Gennarelli, I. Giannakis, I. Catapano, Livia Lantini, G. Ludeno, F. Tosti

引用次数: 1

Measuring Asphalt Pavement Density with a GPR-based Sensor: A Case Study 用gpr传感器测量沥青路面密度:一个案例研究

10th International Workshop on Advanced Ground Penetrating Radar Pub Date : 2019-09-08 DOI: 10.3997/2214-4609.201902573

N. Diamanti, A. P. Annan, S. Jackson

引用次数: 3

Using Ground Penetrating Radar (GPR) To Detect Water Leakage From a Buried Pipeline 利用探地雷达(GPR)探测埋地管道漏水

10th International Workshop on Advanced Ground Penetrating Radar Pub Date : 2019-09-08 DOI: 10.3997/2214-4609.201902565

K. Almutairi, Y. Almutairi, M. Almalki

{"title":"Using Ground Penetrating Radar (GPR) To Detect Water Leakage From a Buried Pipeline","authors":"K. Almutairi, Y. Almutairi, M. Almalki","doi":"10.3997/2214-4609.201902565","DOIUrl":"https://doi.org/10.3997/2214-4609.201902565","url":null,"abstract":"Summary This paper discusses conducting GPR surveys with different frequencies to detect a suspected water leakage from a buried pipeline at a gas platform. Due to the difficulty in accessing the area above the pipeline because of the fill nature of the pipeline area, the survey had to be conducted a long lines that are 1.5 meters way from the pipe line on both sides. The high-resolution 250 MHz antenna needed to identify the leakage could not provide reliable information on the location of the potential leakage due to the distance. However, the low-resolution 25 MHz antenna acquired over two lines on both sides of the pipeline captured the pipeline, in spite of the distance. At a certain location, a dimmed pipeline reflectivity is remarkable due to a regional geology, or related to leakage. Based on analysis, this location is the most probable location for leakage, however with high uncertainty. Generally, GPR managed to detect the pipeline and the host material, soil and limestone, however, confidence in its ability to capture the leakage is not that high for many reasons. This paper provides recommendations of survey designs to detect a considerable water leakage from a pipeline at similar site conditions.","PeriodicalId":162237,"journal":{"name":"10th International Workshop on Advanced Ground Penetrating Radar","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125933711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Laboratory and field GPR measurements to detect qanats 实验室和现场探地雷达测量，以检测坎儿井

10th International Workshop on Advanced Ground Penetrating Radar Pub Date : 2019-09-08 DOI: 10.3997/2214-4609.201902571

A. Hojat, L. Zanzi, S. Karimi-Nasab, H. Ranjbar, M. Loke

{"title":"Laboratory and field GPR measurements to detect qanats","authors":"A. Hojat, L. Zanzi, S. Karimi-Nasab, H. Ranjbar, M. Loke","doi":"10.3997/2214-4609.201902571","DOIUrl":"https://doi.org/10.3997/2214-4609.201902571","url":null,"abstract":"Summary Detection of qanats is one of the main geotechnical concerns in the development of cities in most parts of Iran. Using old aerial photos, we have tracked eight qanat systems at Shahid Bahonar University of Kerman (SBUK). To map qanats in detail, integration of ground penetrating radar (GPR) and electrical resistivity tomography (ERT) techniques was proposed. In this paper, we present the results of laboratory and field GPR measurements to detect qanats at the main campus of the university. Laboratory measurements were performed using an IDS 3GHz antenna on a sand box simulating qanats at different scale and equivalent depths. GPR investigations using Mala antenna with the frequency of 250MHz were performed near the buildings that are located on or close to the qanats tracked at the first phase of this research. GPR method has the required resolution to detect qanats, but the problem becomes challenging for deep qanats in radar absorbing soils. ERT technique could be considered as an alternative to map qanats for soils where GPR penetration is poor. We suggest a perspective idea of using drone technology to be integrated with the defined methods to overcome the limitations of geophysical methods.","PeriodicalId":162237,"journal":{"name":"10th International Workshop on Advanced Ground Penetrating Radar","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115136667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

GPR Method as an Efficient NDT Tool to Characterize Carbonate Rocks during Different Production Stages (Winner Best Oral EAGE-GMS Meeting) GPR方法在不同生产阶段表征碳酸盐岩的有效无损检测工具(最佳口头ege - gms会议获奖者)

10th International Workshop on Advanced Ground Penetrating Radar Pub Date : 2019-09-08 DOI: 10.3997/2214-4609.201902598

A. Hojat, M. Izadi-Yazdanabadi, S. Karimi-Nasab, D. Arosio, L. Zanzi

{"title":"GPR Method as an Efficient NDT Tool to Characterize Carbonate Rocks during Different Production Stages (Winner Best Oral EAGE-GMS Meeting)","authors":"A. Hojat, M. Izadi-Yazdanabadi, S. Karimi-Nasab, D. Arosio, L. Zanzi","doi":"10.3997/2214-4609.201902598","DOIUrl":"https://doi.org/10.3997/2214-4609.201902598","url":null,"abstract":"Summary Iran and Italy have a great potential in stone production relying on a variety of dimension stone quarries, especially carbonate rocks. To survive in the modern challenging international market, it is crucial to have products without defects. Ground Penetrating Radar (GPR) method as a rapid and efficient non-destructive technique (NDT) can be used to characterize carbonate rocks during different production stages. In this paper, we present the results of GPR measurements to monitor the quality of marble and limestone rocks at different scales. Considering the availability of GPR antennas in a wide range of frequencies, providing different resolutions, GPR method is very encouraging to detect the desired discontinuities of carbonate rocks at different production stages. Lower frequency antennas can detect major discontinuities to optimize the extraction design. Higher frequency antennas can later detect smaller fractures of the extracted blocks to optimize slab production. Our research is under progress to explore the efficiency of GPR method in mapping the quality of resin injection in fractured rocks. As an auxiliary NDT method to be integrated with GPR measurements, ultrasonic pulse velocity tests are also performed. The results show that changes in the velocity can be a good indication of the stone quality.","PeriodicalId":162237,"journal":{"name":"10th International Workshop on Advanced Ground Penetrating Radar","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122395221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Critical verification of the underground cartography of the municipality using a high performance Ground Penetrating Radar 使用高性能探地雷达对市政地下制图进行关键验证

10th International Workshop on Advanced Ground Penetrating Radar Pub Date : 2019-09-08 DOI: 10.3997/2214-4609.201902569

M. Pieraccini, L. Miccinesi, H. G. Cañizares

引用次数: 4

GPR for preventive conservation and valorisation of buried archaeology 探地雷达用于埋藏考古的预防性保护和价值评估

10th International Workshop on Advanced Ground Penetrating Radar Pub Date : 2019-09-08 DOI: 10.3997/2214-4609.201902577

L. B. Ciampoli, R. Santarelli, F. Tosti, A. Benedetto

{"title":"GPR for preventive conservation and valorisation of buried archaeology","authors":"L. B. Ciampoli, R. Santarelli, F. Tosti, A. Benedetto","doi":"10.3997/2214-4609.201902577","DOIUrl":"https://doi.org/10.3997/2214-4609.201902577","url":null,"abstract":"Summary This paper deals with a geophysical experimental activity carried out in Maxenxius Complex, an archaeological site located in Rome, Italy. The objective of the study was to evaluate the feasiblity of GPR for the structural detailing of buried archaeological remains, in view of its future valorisation through three-dimensional reconstruction. As a result, GPR allowed to confirm the literature-based information, i.e. to precisely locate the tanks of the thermal area which was known to be buried in the inspected area. In addition, the tomographic analysis highlighted the presence of two further tanks, thereby suggesting the possibility of further rooms to be located close to the excavated ones. This assumption was also confirmed by tomographic analysis, which stressed out a wall pattern that seems to suggest the presence of further rooms in the top-right side of the area. In general terms, GPR demonstrated a great applicability to archaeological purposes, despite the reliability and productivity of the data interpretation are strongly influenced by the expertise of both the geophysicists and the archaeologists involved.","PeriodicalId":162237,"journal":{"name":"10th International Workshop on Advanced Ground Penetrating Radar","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130280886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0