Proceedings of the 15th International Conference on Ground Penetrating Radar最新文献_第3页

Soil piping: networks characterization using ground-penetrating radar 土壤管道:利用探地雷达表征网络

Proceedings of the 15th International Conference on Ground Penetrating Radar Pub Date : 2014-12-04 DOI: 10.1109/ICGPR.2014.6970403

J. Got, P. André, L. Mertens, C. Bielders, S. Lambot

{"title":"Soil piping: networks characterization using ground-penetrating radar","authors":"J. Got, P. André, L. Mertens, C. Bielders, S. Lambot","doi":"10.1109/ICGPR.2014.6970403","DOIUrl":"https://doi.org/10.1109/ICGPR.2014.6970403","url":null,"abstract":"Soil piping remains a relatively unexplored phenomenon despite its substantial impacts on watershed-scale water and sediments transfer in numerous locations around the world. One of the main limits regarding the study of this singular process is characterization of the pipe networks (defining number, position, dimension and connectivity of pipes). In this context, non-invasive sub-surface imaging using ground-penetrating radar (GPR) seems a promising technique. An exploratory methodology was developed to assess the ability of GPR to characterize pipe networks in Loess-derived soil. This methodology relies on (1) high spatial resolution scanning and (2) detection of electromagnetic sub-surface indicators of soil pipe (reflection hyperbolas and strongest reflections). For a 50 m × 50 m scanned zone, results show that combining these indicators can provide interesting clues about a potential pipe network. Three probably interconnected pipes were revealed. However, results show that the proposed methodology needs specific improvements in signal processing, object detection and system configuration in order to enhance and facilitate subsurface networks characterization.","PeriodicalId":212710,"journal":{"name":"Proceedings of the 15th International Conference on Ground Penetrating Radar","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127819178","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: 6

Design and performance of Full-polarimetric airborne GPR testing system 全极化机载探地雷达测试系统的设计与性能

Proceedings of the 15th International Conference on Ground Penetrating Radar Pub Date : 2014-12-04 DOI: 10.1109/ICGPR.2014.6970537

E. Nilot, Xuan Feng, Cai Liu, Q. Lu, Wenjing Liang, Yue Yu, Q. Ren, Song Cao, Zhixin You, Yuantao Fang, Yin Zhou

引用次数: 1

Investigation of long term moisture changes in roadbeds using GPR 利用探地雷达研究路基长期水分变化

Proceedings of the 15th International Conference on Ground Penetrating Radar Pub Date : 2014-12-04 DOI: 10.1109/ICGPR.2014.6970549

A. Kruglikov, V. Yavna, G. Lazorenko, Z. Khakiev

{"title":"Investigation of long term moisture changes in roadbeds using GPR","authors":"A. Kruglikov, V. Yavna, G. Lazorenko, Z. Khakiev","doi":"10.1109/ICGPR.2014.6970549","DOIUrl":"https://doi.org/10.1109/ICGPR.2014.6970549","url":null,"abstract":"The paper is dedicated to development of a method of assessing the moisture content in a subgrade that has been exposed to occasional rainfalls and seasonal weather effects. The method is based on the obtaining and processing GPR data and allows to investigate long term moisture changes in the railway roadbeds. The change of the signal shape with time is considered depending on the attenuation of electromagnetic radiation in the medium and its reflection from the soil layers boundaries. To analyze the soil moisture content the integral reflectivity as a quantitative characteristic is proposed in this method. This variable is used to evaluate the moisture changes under rainfalls and other seasonal factors. The method verification is performed using RAW data of GPR profiling of Tuapse-Adler (Russia) railway section in December 2009 and between May and September 2010. It's shown that the value of integral reflectivity is sensitive to the soil moisture. Thus the dynamics analysis of changes in soil moisture on the selected railway sections depending on the different seasons is made. These results are in good agreement with data obtained by a track recording car.","PeriodicalId":212710,"journal":{"name":"Proceedings of the 15th International Conference on Ground Penetrating Radar","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122142363","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: 6

Recovering the structure of a layered soil, including layer thickness and dielectric permittivity, using the interfaces and objects backscatter detected in GPR B-scans 利用探地雷达b扫描中探测到的界面和物体后向散射恢复层状土壤的结构，包括层厚和介电常数

Proceedings of the 15th International Conference on Ground Penetrating Radar Pub Date : 2014-12-04 DOI: 10.1109/ICGPR.2014.6970454

M. Ardekani, P. Druyts, S. Lambot, A. De Coster, X. Neyt

{"title":"Recovering the structure of a layered soil, including layer thickness and dielectric permittivity, using the interfaces and objects backscatter detected in GPR B-scans","authors":"M. Ardekani, P. Druyts, S. Lambot, A. De Coster, X. Neyt","doi":"10.1109/ICGPR.2014.6970454","DOIUrl":"https://doi.org/10.1109/ICGPR.2014.6970454","url":null,"abstract":"It is well-known that point scatterers appear as hyperbolas in ground-penetrating radar (GPR) B-scans and that the layer interfaces appear as horizontal lines. In this paper the shape and location of the hyperbolas, together with the location of the layer interfaces, are used to estimate the soil dielectric permittivity for a layered soil. For this, a procedure composed of following steps is used: (1) reflection detection, (2) hyperbola detection, (3) refinement of hyperbola parameters and estimation of the corresponding scatterer location and soil effective dielectric permittivity, and (4) computation of scatterer depth and layer permittivity taking into account the properties of the upper layers. The reflection detection step takes the GPR B-scan as input and produces a `reflection binary image' as output. The binary image highlights reflections of interest, which includes the hyperbolas and the soil layer interfaces. The effective soil dielectric permittivity is estimated by fitting a theoretically computed hyperbola to the `reflection binary image' for each reflection detected. Then, hyperbola parameters are refined by optimizing a cost function which is computed on the original Bscan for each detected hyperbola. Finally, the soil layer dielectric permittivity and scatterer depth are derived from the hyperbola parameters, taking into account the properties of the upper layers. The procedure is applied to simulated data, showing good accuracy in soil dielectric permittivity estimation and high computational efficiency.","PeriodicalId":212710,"journal":{"name":"Proceedings of the 15th International Conference on Ground Penetrating Radar","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126182406","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: 6

Application of GPR in assessing the stability of oil pipeline 探地雷达在石油管道稳定性评价中的应用

Proceedings of the 15th International Conference on Ground Penetrating Radar Pub Date : 2014-12-04 DOI: 10.1109/ICGPR.2014.6970462

P. Jha, V. Balasubramaniam, N. Sandeep, B. B. Babu, Y. Sivaram

{"title":"Application of GPR in assessing the stability of oil pipeline","authors":"P. Jha, V. Balasubramaniam, N. Sandeep, B. B. Babu, Y. Sivaram","doi":"10.1109/ICGPR.2014.6970462","DOIUrl":"https://doi.org/10.1109/ICGPR.2014.6970462","url":null,"abstract":"Oil pipelines are normally buried at a shallow depth for protection against environmental hazard and pilferage. Because of their shallow depth of burial, they have the least known stability threat unless they pass over some hazardous region. In the present case with the crude oil pipeline in India, 42 km stretch (out of 300 km) passes through a coal mining belt where series of coal mines are still active. Due to shallow occurrence of good quality coal seam, pilferage due to illegal mining is quite common. Many of the old coal mines in this area were as shallow as at 20 m depth, most of them are now inundated and inaccessible. Incidences of mine fire in the exposed pits or subsidence over an old mining region has threatened the pipeline stability in the past by way of abnormal sag resulting in the opening of joints and leakage of oil. After a few such occurrences, it was desired to assess the pipeline stability by mapping the subsurface conditions around the pipeline through appropriate geophysical methods. In the present study, geophysical survey along selected using GPR was done using stepped frequency radar and the results were verified with 2D resistivity imaging survey. Survey results identified two vulnerable locations where the pipeline stability was under potential threat. Though shifting of the pipeline is the best alternative, proper ground reinforcement is recommended till alternate alignment is finalised.","PeriodicalId":212710,"journal":{"name":"Proceedings of the 15th International Conference on Ground Penetrating Radar","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132310830","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

Current limits for high precision GPR measurements 目前对高精度GPR测量的限制

Proceedings of the 15th International Conference on Ground Penetrating Radar Pub Date : 2014-12-04 DOI: 10.1109/ICGPR.2014.6970524

P. Klenk, V. Keicher, S. Jaumann, K. Roth

引用次数: 2

Borehole radar interferometry revisited 井眼雷达干涉测量法重述

Proceedings of the 15th International Conference on Ground Penetrating Radar Pub Date : 2014-12-04 DOI: 10.1109/ICGPR.2014.6970491

Lanbo Liu, Chunguang Ma, J. Lane, P. Joesten

{"title":"Borehole radar interferometry revisited","authors":"Lanbo Liu, Chunguang Ma, J. Lane, P. Joesten","doi":"10.1109/ICGPR.2014.6970491","DOIUrl":"https://doi.org/10.1109/ICGPR.2014.6970491","url":null,"abstract":"Single-hole, multi-offset borehole-radar reflection (SHMOR) is an effective technique for fracture detection. However, commercial radar system limitations hinder the acquisition of multi-offset reflection data in a single borehole. Transforming cross-hole transmission mode radar data to virtual single-hole, multi-offset reflection data using a wave interferometric virtual source (WIVS) approach has been proposed but not fully demonstrated. In this study, we compare WIVS-derived virtual single-hole, multi-offset reflection data to real SHMOR radar reflection profiles using cross-hole and single-hole radar data acquired in two boreholes located at the University of Connecticut (Storrs, CT USA). The field data results are similar to full-waveform numerical simulations developed for a two-borehole model. The reflection from the adjacent borehole is clearly imaged by both the real and WIVS-derived virtual reflection profiles. Reflector travel-time changes induced by deviation of the two boreholes from the vertical can also be observed on the real and virtual reflection profiles. The results of this study demonstrate the potential of the WIVS approach to improve bedrock fracture imaging for hydrogeological and petroleum reservoir development applications.","PeriodicalId":212710,"journal":{"name":"Proceedings of the 15th International Conference on Ground Penetrating Radar","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122321175","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

Electromagnetic characterization of saline mixture for shallow radar exploration 浅层雷达探测盐水混合物电磁特性研究

Proceedings of the 15th International Conference on Ground Penetrating Radar Pub Date : 2014-12-04 DOI: 10.1109/ICGPR.2014.6970445

B. Cosciotti, F. Di Paolo, S. Lauro, G. Vannaroni, F. Bella, E. Pettinelli, E. Mattei

{"title":"Electromagnetic characterization of saline mixture for shallow radar exploration","authors":"B. Cosciotti, F. Di Paolo, S. Lauro, G. Vannaroni, F. Bella, E. Pettinelli, E. Mattei","doi":"10.1109/ICGPR.2014.6970445","DOIUrl":"https://doi.org/10.1109/ICGPR.2014.6970445","url":null,"abstract":"The first recognition of the Jupiter system, performed by the Voyager spacecraft, suggested the possibility of an ocean of liquid water beneath the ice shell two of Jupiter's moons, Ganymede and Europa. In addition, the Galileo mission detected in the icy shell the presence of impurities like magnesium and sodium sulfates, and sulfuric and hydrochloric acids. JUICE - JUpiter ICy moons Explorer will investigate the potentially habitable zones in the Ganymede, Europa and Callisto moons. In particular a radar sounder (RIME) operating at 9 MHz, optimized for the penetration of the icy shell, will provide the subsurface survey up to a depth of about 9 km. The performance of RIME depends on the electromagnetic properties of the icy shells, which in turn are related to the impurity contents and temperature. In this scenario, we have performed measurements of dielectric properties of ice doped with MgSO4, Na2SO4. The tests were performed as a function of frequency from 20 Hz to 1 MHz and temperature down to 100 K. The electromagnetic behaviour of saline-ices have shown that the attenuation coefficient becomes very small when the temperature decreases.","PeriodicalId":212710,"journal":{"name":"Proceedings of the 15th International Conference on Ground Penetrating Radar","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114259121","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

A bore-head GPR for horizontal directional drilling (HDD) equipment 一种用于水平定向钻井(HDD)设备的井头探地雷达

Proceedings of the 15th International Conference on Ground Penetrating Radar Pub Date : 2014-12-04 DOI: 10.1109/ICGPR.2014.6970526

G. Manacorda, M. Miniati, A. Simi, R. Guidi, Simone Lelli, Daniele Vacca, D. Dei, D. Mecatti, H. Scott, M. Morey, M. Hamers, T. Schauerte

{"title":"A bore-head GPR for horizontal directional drilling (HDD) equipment","authors":"G. Manacorda, M. Miniati, A. Simi, R. Guidi, Simone Lelli, Daniele Vacca, D. Dei, D. Mecatti, H. Scott, M. Morey, M. Hamers, T. Schauerte","doi":"10.1109/ICGPR.2014.6970526","DOIUrl":"https://doi.org/10.1109/ICGPR.2014.6970526","url":null,"abstract":"This paper describes a project entitled 'ORFEUS', supported by the European Commission's 7th Framework development programme. Horizontal directional drilling (HDD) offers significant benefits for urban environments by minimising the disruption caused by street works. Use of the technique demands an accurate knowledge of underground utility assets and other obstructions in the drill path. This project is aimed at improving the results of a previous project developed under the 6th Framework programme; specifically it addresses some issues that were formerly unresolved, in order to produce a commercially viable product. In fact, ORFEUS activities concern the research of the optimum antenna configuration, the design of an angular position sensor and a communication module, as well as the identification/validation of the most effective bore-head GPR data processing algorithms. The final system is expected to offer the operator information directly from the drilling head, in real time, allowing objects to be avoided; this is a unique feature that will enhance safety and efficiency, reduce risk, reduce the environmental impact (e.g. damage to natural habitats, less CO2 emissions) and lead to positive economic benefits in terms of cost and time savings for the operator, manufacturers and wider supply chain.","PeriodicalId":212710,"journal":{"name":"Proceedings of the 15th International Conference on Ground Penetrating Radar","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115828648","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: 7

A mobile android application for road and pavement inspection by GPR data processing 基于GPR数据处理的道路和路面检测移动应用程序

Proceedings of the 15th International Conference on Ground Penetrating Radar Pub Date : 2014-12-04 DOI: 10.1109/ICGPR.2014.6970546

F. Benedetto, A. Benedetto, A. Tedeschi

引用次数: 6