Pub Date : 2018-06-01DOI: 10.1109/ICGPR.2018.8441554
C. Sachet, P. Sentenac, D. Leparoux, P. Côté, Christopher Boulay, Matthieu Molinie
The durability of coastal masonry structures is the controlling factor in determining the risks of defects propagation in piers, jetties, harbors, seawalls, etc... This work proposes a methodology in adequacy with the problems met on these structures on the field, for the processing and for the interpretation of the data. The methodology proposed aims to be easily implemented by the user in order to obtain results from a GPR investigation on coastal man-made masonry structures. The process uses an initial visualization and selection of coherent dielectric reflectors showing lateral phase continuity which defines their time-space positions and amplitudes. The selection of each reflector from a profile to another is based on a sufficient gridding of the area investigated and on its shape (geometry, intensity and depth). The consistency of the reflectors selected will be demonstrated by their interpolation and mapping. Their amplitudes will be mapped and will enable the user to interpret the relative variability of the reflectors in terms of depth and energy backscattered. The amplitude added to the reflectors 3D positions will provide the key information at this scale of interest. The proposed methodology has been validated and its accuracy discussed, as well as its limitations considering its application. The mapping successfully ensured consistency compared to other ground investigation methods. Thus, this method could be jointly used with other geophysical or geotechnical methods as part of a larger ground investigation. More particularly, the resulting mapping may be used to constrain geotechnical models, image-guided ERT inversion or any other geophysical investigation.
{"title":"Feasabiliy of the use of coherent dielectric interfaces as a GPR analysis methodology in the context of coastal masonry: An experimental approach","authors":"C. Sachet, P. Sentenac, D. Leparoux, P. Côté, Christopher Boulay, Matthieu Molinie","doi":"10.1109/ICGPR.2018.8441554","DOIUrl":"https://doi.org/10.1109/ICGPR.2018.8441554","url":null,"abstract":"The durability of coastal masonry structures is the controlling factor in determining the risks of defects propagation in piers, jetties, harbors, seawalls, etc... This work proposes a methodology in adequacy with the problems met on these structures on the field, for the processing and for the interpretation of the data. The methodology proposed aims to be easily implemented by the user in order to obtain results from a GPR investigation on coastal man-made masonry structures. The process uses an initial visualization and selection of coherent dielectric reflectors showing lateral phase continuity which defines their time-space positions and amplitudes. The selection of each reflector from a profile to another is based on a sufficient gridding of the area investigated and on its shape (geometry, intensity and depth). The consistency of the reflectors selected will be demonstrated by their interpolation and mapping. Their amplitudes will be mapped and will enable the user to interpret the relative variability of the reflectors in terms of depth and energy backscattered. The amplitude added to the reflectors 3D positions will provide the key information at this scale of interest. The proposed methodology has been validated and its accuracy discussed, as well as its limitations considering its application. The mapping successfully ensured consistency compared to other ground investigation methods. Thus, this method could be jointly used with other geophysical or geotechnical methods as part of a larger ground investigation. More particularly, the resulting mapping may be used to constrain geotechnical models, image-guided ERT inversion or any other geophysical investigation.","PeriodicalId":269482,"journal":{"name":"2018 17th International Conference on Ground Penetrating Radar (GPR)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132993649","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}
Pub Date : 2018-06-01DOI: 10.1109/ICGPR.2018.8441538
Xu Xianlei, Liang Junpeng, Ma Zheng
This pa per presents a novel multi - frequency GPR data fusion method, aiming to solve the problem of misjudgment and missed judgment due to single frequency GPR data used in the disease detection. Compared with the data before fusion, the image quality and image interpretation accuracy of the fused data is obviously improved. For design validation, field detection experiments are conducted, and the data fusion images are analyzed and evaluated. The method will provide technical support for road safety evaluation.
{"title":"A Multi - frequency GPR Data Fusion Method for Underground Disease Detection","authors":"Xu Xianlei, Liang Junpeng, Ma Zheng","doi":"10.1109/ICGPR.2018.8441538","DOIUrl":"https://doi.org/10.1109/ICGPR.2018.8441538","url":null,"abstract":"This pa per presents a novel multi - frequency GPR data fusion method, aiming to solve the problem of misjudgment and missed judgment due to single frequency GPR data used in the disease detection. Compared with the data before fusion, the image quality and image interpretation accuracy of the fused data is obviously improved. For design validation, field detection experiments are conducted, and the data fusion images are analyzed and evaluated. The method will provide technical support for road safety evaluation.","PeriodicalId":269482,"journal":{"name":"2018 17th International Conference on Ground Penetrating Radar (GPR)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122897666","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}
Pub Date : 2018-06-01DOI: 10.1109/ICGPR.2018.8441550
J. Ortega-Ramirez, M. Bano, L. A. Villa-Alvarado, R. Junco-Sánchez, M. Pifia-Cetina, S. Estrada-Apatiza, J. C. Vera-Sanchez, A. Hernández-López
The Fort of San Diego is an ancient Spanish fortress built in the early 17th century and restored, after a severe earthquake, in the 18th century. To establish the architectural modifications through time and the relevance of the fort as a witness of Acapulco's history we used the non-invasive GPR technique. The objective was to detect the existence of tunnels or other anthropogenic features undertaken through time on this fortress. GPR results showed evidence of cylinders and foundation walls of the original fort and, maybe, the existence of voids.
{"title":"Ground penetrating radar investigation of an ancient Spanish fortress: The Fort of San Diego, Acapulco, Mexico","authors":"J. Ortega-Ramirez, M. Bano, L. A. Villa-Alvarado, R. Junco-Sánchez, M. Pifia-Cetina, S. Estrada-Apatiza, J. C. Vera-Sanchez, A. Hernández-López","doi":"10.1109/ICGPR.2018.8441550","DOIUrl":"https://doi.org/10.1109/ICGPR.2018.8441550","url":null,"abstract":"The Fort of San Diego is an ancient Spanish fortress built in the early 17th century and restored, after a severe earthquake, in the 18th century. To establish the architectural modifications through time and the relevance of the fort as a witness of Acapulco's history we used the non-invasive GPR technique. The objective was to detect the existence of tunnels or other anthropogenic features undertaken through time on this fortress. GPR results showed evidence of cylinders and foundation walls of the original fort and, maybe, the existence of voids.","PeriodicalId":269482,"journal":{"name":"2018 17th International Conference on Ground Penetrating Radar (GPR)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124027610","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}
Pub Date : 2018-06-01DOI: 10.1109/ICGPR.2018.8441626
G. Kneib, D. Jansen, B. Wacker
Aging of roads and the necessity of planning and performing maintenance measures ask for reliable and economic investigation methods to characterize the structural substance of roads. Nondestructive measurements via georadar and ultrasound have been performed on the surface of a split mastix asphalt test road at the Federal Highway Research Institute of Germany. Sections of the test road had been systematically altered by simulation of traffic load. Common-offset georadar measurements reveal the basic layer structure of the road down to 0.90 m. Common-midpoint measurements show that electromagnetic direct wave speed at loaded road sections is few percent higher and attenuation lower than at non-damaged sections. Reflections at 0.05 m, 0.15 m and 0.90 cm depth could be identified that went along the known road layering. Radar wave propagation velocity decreases with depth by several percent within the road body. Ultrasound common-midpoint measurements at the same locations and nearly identical data processing than for the electromagnetic waves yield wave speeds of P-waves, SH-waves and Rayleigh surface waves and reflections from the road body. Mechanical loads did not affect ultrasound compressional wave velocity but it reduced shear and surface wave speed by few percent. A relation between electromagnetic and dynamic mechanical material properties may be established that could be used to indicate the state of the structural substance of roads by either method and to combine the advantages of fast georadar acquisition with the benefit of ultrasound to probe mechanical properties.
{"title":"Investigation of the structural substance of roads via georadar and ultrasound","authors":"G. Kneib, D. Jansen, B. Wacker","doi":"10.1109/ICGPR.2018.8441626","DOIUrl":"https://doi.org/10.1109/ICGPR.2018.8441626","url":null,"abstract":"Aging of roads and the necessity of planning and performing maintenance measures ask for reliable and economic investigation methods to characterize the structural substance of roads. Nondestructive measurements via georadar and ultrasound have been performed on the surface of a split mastix asphalt test road at the Federal Highway Research Institute of Germany. Sections of the test road had been systematically altered by simulation of traffic load. Common-offset georadar measurements reveal the basic layer structure of the road down to 0.90 m. Common-midpoint measurements show that electromagnetic direct wave speed at loaded road sections is few percent higher and attenuation lower than at non-damaged sections. Reflections at 0.05 m, 0.15 m and 0.90 cm depth could be identified that went along the known road layering. Radar wave propagation velocity decreases with depth by several percent within the road body. Ultrasound common-midpoint measurements at the same locations and nearly identical data processing than for the electromagnetic waves yield wave speeds of P-waves, SH-waves and Rayleigh surface waves and reflections from the road body. Mechanical loads did not affect ultrasound compressional wave velocity but it reduced shear and surface wave speed by few percent. A relation between electromagnetic and dynamic mechanical material properties may be established that could be used to indicate the state of the structural substance of roads by either method and to combine the advantages of fast georadar acquisition with the benefit of ultrasound to probe mechanical properties.","PeriodicalId":269482,"journal":{"name":"2018 17th International Conference on Ground Penetrating Radar (GPR)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129185735","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}
Pub Date : 2018-06-01DOI: 10.1109/ICGPR.2018.8441525
I. Prokopovich, P. Morozov, A. Popov, V. Kopeikin, A. Berkut, L.M. Krinitsky
We discuss geophysical applications of enhanced-power ground penetrating radar. Its technical characteristics assure penetration depth and resolution sufficient for probing weak subsurface boundaries, such as buried riverbeds or interfaces between natural and artificial grounds. Examples of deep GPR scans demonstrate weak protracted echo signals originated at smooth permittivity gradients of the subsurface medium. Their quantitative interpretation can be done with the help of time-domain version of coupled WKB approximation.
{"title":"Deep Penetration Radar: Hydrogeology and Paleorelief of Underlying Medium","authors":"I. Prokopovich, P. Morozov, A. Popov, V. Kopeikin, A. Berkut, L.M. Krinitsky","doi":"10.1109/ICGPR.2018.8441525","DOIUrl":"https://doi.org/10.1109/ICGPR.2018.8441525","url":null,"abstract":"We discuss geophysical applications of enhanced-power ground penetrating radar. Its technical characteristics assure penetration depth and resolution sufficient for probing weak subsurface boundaries, such as buried riverbeds or interfaces between natural and artificial grounds. Examples of deep GPR scans demonstrate weak protracted echo signals originated at smooth permittivity gradients of the subsurface medium. Their quantitative interpretation can be done with the help of time-domain version of coupled WKB approximation.","PeriodicalId":269482,"journal":{"name":"2018 17th International Conference on Ground Penetrating Radar (GPR)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128732695","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}
Pub Date : 2018-06-01DOI: 10.1109/ICGPR.2018.8441551
N. Belkowiche, H. Jourde, J. Rolando, G. Massonnat, G. Sénéchal, D. Rousset
This study takes part in an integrated project whose goal is to characterize the permeability heterogeneity controlling the water flow in a saturated environment. Our approach, as part as this project, is based on the use of ground penetrating radar (GPR) in order to determine the water content by means of an EM velocity model. We investigate a porous, permeable and water saturated formation (bioclastic limestones dating from the Burdigalian). The studied area is located in the South of France, near the city of Montpellier. Thirteen vertical 35 meters deep boreholes, including 3 continuous cores, were drilled in 2016. A total of 32 tomographies have been acquired between the 13 wells with 100 MHz antennas. In addition to the tomographies, GPR log has been carried out in each well with 250 MHz antennas. The 32 dataset have been separately inverted in order to obtain 32 2D velocity models. These inversions were based on the SIRT (Simultaneous Iterative Reconstruction Technique) algorithm. The analysis of these 2D models shows velocity variations interpreted as water content heterogeneities. Correlations between tomographies, logs and core measurements show strong similarities in terms of global trend. However, absolute velocity differences between each panel justify 3D perspectives.
{"title":"GPR tomography in a water saturated context using a 13 boreholes configuration","authors":"N. Belkowiche, H. Jourde, J. Rolando, G. Massonnat, G. Sénéchal, D. Rousset","doi":"10.1109/ICGPR.2018.8441551","DOIUrl":"https://doi.org/10.1109/ICGPR.2018.8441551","url":null,"abstract":"This study takes part in an integrated project whose goal is to characterize the permeability heterogeneity controlling the water flow in a saturated environment. Our approach, as part as this project, is based on the use of ground penetrating radar (GPR) in order to determine the water content by means of an EM velocity model. We investigate a porous, permeable and water saturated formation (bioclastic limestones dating from the Burdigalian). The studied area is located in the South of France, near the city of Montpellier. Thirteen vertical 35 meters deep boreholes, including 3 continuous cores, were drilled in 2016. A total of 32 tomographies have been acquired between the 13 wells with 100 MHz antennas. In addition to the tomographies, GPR log has been carried out in each well with 250 MHz antennas. The 32 dataset have been separately inverted in order to obtain 32 2D velocity models. These inversions were based on the SIRT (Simultaneous Iterative Reconstruction Technique) algorithm. The analysis of these 2D models shows velocity variations interpreted as water content heterogeneities. Correlations between tomographies, logs and core measurements show strong similarities in terms of global trend. However, absolute velocity differences between each panel justify 3D perspectives.","PeriodicalId":269482,"journal":{"name":"2018 17th International Conference on Ground Penetrating Radar (GPR)","volume":"1930 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129055780","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}
Pub Date : 2018-06-01DOI: 10.1109/ICGPR.2018.8441594
A. Strange, Z. Jecny
There is a need for a reliable coal seam sensing system to provide selective mining capabilities for open-cut coal mining operations. This paper presents the preliminary results of a GPR-based sensing system developed for this purpose. The system will be used to scan open-cut sites to generate digital surfaces representative of the thickness of the coal seam. The digital surfaces will be uploaded to in-cab guidance systems to provide operators with information to enable selective mining. The system was evaluated at an open-cut mine site where a digital surface was generated from the GPR data collected at the site. Results from drilling holes to validate the system showed that the top layer thickness estimates were within 5% of the measured layer thickness at four of the five test locations.
{"title":"Coal Subsurface Mapping for Selective Mining","authors":"A. Strange, Z. Jecny","doi":"10.1109/ICGPR.2018.8441594","DOIUrl":"https://doi.org/10.1109/ICGPR.2018.8441594","url":null,"abstract":"There is a need for a reliable coal seam sensing system to provide selective mining capabilities for open-cut coal mining operations. This paper presents the preliminary results of a GPR-based sensing system developed for this purpose. The system will be used to scan open-cut sites to generate digital surfaces representative of the thickness of the coal seam. The digital surfaces will be uploaded to in-cab guidance systems to provide operators with information to enable selective mining. The system was evaluated at an open-cut mine site where a digital surface was generated from the GPR data collected at the site. Results from drilling holes to validate the system showed that the top layer thickness estimates were within 5% of the measured layer thickness at four of the five test locations.","PeriodicalId":269482,"journal":{"name":"2018 17th International Conference on Ground Penetrating Radar (GPR)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114230809","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}
Pub Date : 2018-06-01DOI: 10.1109/ICGPR.2018.8441648
L. Qiao, Yao Qin
In order to meet the need of actual exploration, this paper makes a deep study of the thin layer's electromagnetic reflection properties. The Synchrosqueezing Short-Time Fourier Transform (SSTFT) is introduced into the thin layer identification. This method is highly adaptive to the given signal and makes the time-frequency plot more sharpen. Even the layer with the thickness of $lambda/8$, the SSTFT analysis method can still pick up the top and bottom of the layer. The experiment on the and real data show that the method improves the time-frequency resolution and the layer recognition ability of the Ground Penetrating Radar signal.
{"title":"Application of Synchrosqueezing Short Fourier transform analysis in Ground Penetrating Radar thin layer Recognition","authors":"L. Qiao, Yao Qin","doi":"10.1109/ICGPR.2018.8441648","DOIUrl":"https://doi.org/10.1109/ICGPR.2018.8441648","url":null,"abstract":"In order to meet the need of actual exploration, this paper makes a deep study of the thin layer's electromagnetic reflection properties. The Synchrosqueezing Short-Time Fourier Transform (SSTFT) is introduced into the thin layer identification. This method is highly adaptive to the given signal and makes the time-frequency plot more sharpen. Even the layer with the thickness of $lambda/8$, the SSTFT analysis method can still pick up the top and bottom of the layer. The experiment on the and real data show that the method improves the time-frequency resolution and the layer recognition ability of the Ground Penetrating Radar signal.","PeriodicalId":269482,"journal":{"name":"2018 17th International Conference on Ground Penetrating Radar (GPR)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126114687","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}
Pub Date : 2018-06-01DOI: 10.1109/ICGPR.2018.8441612
L. Liu, Y. Liu, Z. Hu, R. Qian
Manghong Octagonal Tower (MOT) was built in the Qing dynasty Kangxi period (BC 1662~ BC 1722). The tower's architectural style and tower pattern blend Confucianism, Taoism and Buddhism culture. It has been the spiritual ballast of the local residents since its completion and plays an important role in sacrificial activities. The tower also has important archaeological value for studying the architectural characteristics and economic culture of Qing Dynasty in China. We can't obtain internal structure information of MOT, which is formed by the verrucano stone. However, because of some reasons such as age, geological subsidence and erosion, the tower tilts. Tower structure has been reformed in maintenance work. It's difficult to obtain the changes of tower structure on the surface. The structure of the tower is an important factor affecting the force change and tilt of the tower, so it is an urgent problem for the protection of cultural relics and archaeological research to analyze the structural characteristics of the tower and the existence of hidden defects without damaging the body of the tower. In this paper, we use GPR to detect the structure of stony MOT in different heights. We set up a dense detection lines with a line distance of 0.20 m to detect the structure of stone in high resolution and analyze the distribution characteristics of the tower so as to provide guidance for the protection of historic building architectural relics. The results show that the body of MOT forms mainly composed of two layers of crossed stone and the south wall is thicker. There is no darkroom or empty in tower foundation. The tilt of the tower, which has a great harm, will further cause unequal force to cause cracks in the tower body, so the protection measures should be taken on the premise of avoiding the man-made destruction of the tower.
{"title":"Study of Tower Structure of the Octagonal Tower Based on GPR","authors":"L. Liu, Y. Liu, Z. Hu, R. Qian","doi":"10.1109/ICGPR.2018.8441612","DOIUrl":"https://doi.org/10.1109/ICGPR.2018.8441612","url":null,"abstract":"Manghong Octagonal Tower (MOT) was built in the Qing dynasty Kangxi period (BC 1662~ BC 1722). The tower's architectural style and tower pattern blend Confucianism, Taoism and Buddhism culture. It has been the spiritual ballast of the local residents since its completion and plays an important role in sacrificial activities. The tower also has important archaeological value for studying the architectural characteristics and economic culture of Qing Dynasty in China. We can't obtain internal structure information of MOT, which is formed by the verrucano stone. However, because of some reasons such as age, geological subsidence and erosion, the tower tilts. Tower structure has been reformed in maintenance work. It's difficult to obtain the changes of tower structure on the surface. The structure of the tower is an important factor affecting the force change and tilt of the tower, so it is an urgent problem for the protection of cultural relics and archaeological research to analyze the structural characteristics of the tower and the existence of hidden defects without damaging the body of the tower. In this paper, we use GPR to detect the structure of stony MOT in different heights. We set up a dense detection lines with a line distance of 0.20 m to detect the structure of stone in high resolution and analyze the distribution characteristics of the tower so as to provide guidance for the protection of historic building architectural relics. The results show that the body of MOT forms mainly composed of two layers of crossed stone and the south wall is thicker. There is no darkroom or empty in tower foundation. The tilt of the tower, which has a great harm, will further cause unequal force to cause cracks in the tower body, so the protection measures should be taken on the premise of avoiding the man-made destruction of the tower.","PeriodicalId":269482,"journal":{"name":"2018 17th International Conference on Ground Penetrating Radar (GPR)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127347580","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}
Pub Date : 2018-06-01DOI: 10.1109/ICGPR.2018.8441616
Xu Xianlei, Ma Zheng, Liang Junpeng, Xie Dongshan
The hidden geological disaster sources lead to frequent safety accident in mine, and the geological radar technology is widely used in the detection of geological structure and hidden disaster sources. This paper designs a geological radar antenna and shielding device for full space of mine roadway, aiming to improve the accurate identification ability for small target. The main frequency of the antenna is 200MHz. The simulation and mine test results show that the antenna has a best performance with the antenna flare angle at 80° and the shield height at 175mm in the full space environment. Compared with many existing antennas with low resolution, the new antenna system can effectively improve the detailed detection ability of the hidden geological disaster source in the shallow mine, which is of great significance for safe mining.
{"title":"Research on the Geological Radar Antenna for Application in Full Space of Mine Roadway","authors":"Xu Xianlei, Ma Zheng, Liang Junpeng, Xie Dongshan","doi":"10.1109/ICGPR.2018.8441616","DOIUrl":"https://doi.org/10.1109/ICGPR.2018.8441616","url":null,"abstract":"The hidden geological disaster sources lead to frequent safety accident in mine, and the geological radar technology is widely used in the detection of geological structure and hidden disaster sources. This paper designs a geological radar antenna and shielding device for full space of mine roadway, aiming to improve the accurate identification ability for small target. The main frequency of the antenna is 200MHz. The simulation and mine test results show that the antenna has a best performance with the antenna flare angle at 80° and the shield height at 175mm in the full space environment. Compared with many existing antennas with low resolution, the new antenna system can effectively improve the detailed detection ability of the hidden geological disaster source in the shallow mine, which is of great significance for safe mining.","PeriodicalId":269482,"journal":{"name":"2018 17th International Conference on Ground Penetrating Radar (GPR)","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123222663","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：