To analyze the fan formation process due to swing phenomena of the debris flow, the authors performed a numerical simulation of debris flow by means of depth integrated two dimensional governing equations of solid-water mixture and the bed shear stress formula characterized by yield and the fluid type shear stress. In this research, the debris flow phenomena and fan formation processes are studied as the test case applied in the Chacaito Creek located in the metropolitan urban area of Caracas city, Venezuela. The results of 2-D numerical simulations confirmed the influences of swing phenomena in the temporal variations of the morphology of debris fan. Likewise, the research demonstrates that fan formation processes in successive numerical simulations have variations in the spatial distribution of the sediment deposition due to changes in the debris flow directions caused by the topographic conditions at the fan head and the swing phenomena.
{"title":"Fluvial Fan Process due to Swing Phenomena","authors":"R. Escalona, A. Yorozuya, S. Egashira, Y. Iwami","doi":"10.13101/IJECE.9.25","DOIUrl":"https://doi.org/10.13101/IJECE.9.25","url":null,"abstract":"To analyze the fan formation process due to swing phenomena of the debris flow, the authors performed a numerical simulation of debris flow by means of depth integrated two dimensional governing equations of solid-water mixture and the bed shear stress formula characterized by yield and the fluid type shear stress. In this research, the debris flow phenomena and fan formation processes are studied as the test case applied in the Chacaito Creek located in the metropolitan urban area of Caracas city, Venezuela. The results of 2-D numerical simulations confirmed the influences of swing phenomena in the temporal variations of the morphology of debris fan. Likewise, the research demonstrates that fan formation processes in successive numerical simulations have variations in the spatial distribution of the sediment deposition due to changes in the debris flow directions caused by the topographic conditions at the fan head and the swing phenomena.","PeriodicalId":378771,"journal":{"name":"International Journal of Erosion Control Engineering","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129517066","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}
Yeon-Joong Kim, Kohji Tanaka, H. Nakashima, E. Nakakita
Natural disasters can strike without notice at any time, anywhere. Also these disasters can occur in multiple locations between high and low mountainous areas simultaneously with flooding in urban areas caused by heavy rainfall. However, it is becoming more and more difficult to predict heavy rainfall, and intensive rainfall could become more frequent in the future due to climate change. In order to reduce these impending disasters more effectively, it is necessary to investigate what causes the damage with an integrated model of disasters at once, and to adequately predict rainfall. The main objectives of this study are to evaluate the maximum forecast rainfall by a depth-area-duration analysis, to analyses the debris flow during urban inundation in a real basin, and to estimate the risk evaluation index according to two-dimensional debris flow with two-dimensional urban inundation models. Finally, the establishment of an evacuation time scenario is proposed, and multihazard risk and evacuation route maps combining both disasters are created using a geographic information system. The peak precipitation is estimated at 135mm/hr of torrential rainfall, and the maximum total rainfall is estimated at 544mm of typhoon-related rainfall at Ono, Japan, using depth-area-duration analysis.
{"title":"Debris Flow Prevention Countermeasures with Urban Inundation in a Multihazard-Environment","authors":"Yeon-Joong Kim, Kohji Tanaka, H. Nakashima, E. Nakakita","doi":"10.13101/IJECE.9.58","DOIUrl":"https://doi.org/10.13101/IJECE.9.58","url":null,"abstract":"Natural disasters can strike without notice at any time, anywhere. Also these disasters can occur in multiple locations between high and low mountainous areas simultaneously with flooding in urban areas caused by heavy rainfall. However, it is becoming more and more difficult to predict heavy rainfall, and intensive rainfall could become more frequent in the future due to climate change. In order to reduce these impending disasters more effectively, it is necessary to investigate what causes the damage with an integrated model of disasters at once, and to adequately predict rainfall. The main objectives of this study are to evaluate the maximum forecast rainfall by a depth-area-duration analysis, to analyses the debris flow during urban inundation in a real basin, and to estimate the risk evaluation index according to two-dimensional debris flow with two-dimensional urban inundation models. Finally, the establishment of an evacuation time scenario is proposed, and multihazard risk and evacuation route maps combining both disasters are created using a geographic information system. The peak precipitation is estimated at 135mm/hr of torrential rainfall, and the maximum total rainfall is estimated at 544mm of typhoon-related rainfall at Ono, Japan, using depth-area-duration analysis.","PeriodicalId":378771,"journal":{"name":"International Journal of Erosion Control Engineering","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123793492","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}
Go Yanagisaki, Masashi Aono, H. Takenaka, Masayuki Tamamura, K. Nakatani, E. Iwanami, Shigeo Horiuchi, Y. Satofuka, T. Mizuyama
. Takahama, J., Fujita, Y. and Yasuhiro, K. (2000): Analysis method of transitional flow from debris flow to sediment sheet flow, Journal of Hydroscience and Hydraulic Engineering, Vol. 44,
{"title":"Debris Flow Simulation by Applying the Hyper KANAKO System for Water and Sediment Runoff from Overtopping Erosion of a Landslide Dam","authors":"Go Yanagisaki, Masashi Aono, H. Takenaka, Masayuki Tamamura, K. Nakatani, E. Iwanami, Shigeo Horiuchi, Y. Satofuka, T. Mizuyama","doi":"10.13101/IJECE.9.43","DOIUrl":"https://doi.org/10.13101/IJECE.9.43","url":null,"abstract":". Takahama, J., Fujita, Y. and Yasuhiro, K. (2000): Analysis method of transitional flow from debris flow to sediment sheet flow, Journal of Hydroscience and Hydraulic Engineering, Vol. 44,","PeriodicalId":378771,"journal":{"name":"International Journal of Erosion Control Engineering","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123877323","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}
This paper presents the fuzzy analytic hierarchy process (FAHP) for risk assessment of debris-flow occurrence using three different fuzzy numbers. Three layers are involved in the structure of the FAHP: the goal layer, the criteria layer, and the sub-criteria layer. In the criteria and sub-criteria layers, nine major influence factors are grouped into three categories: (1) topological and geological conditions, which includes the influence factors of slope angle, type of deposit, grain size distribution, and surface plants; (2) watershed conditions, which includes effective watershed area and quantity of outflow of sediment; and (3) rainfall conditions, which includes rainfall intensity, duration, and accumulated rainfall. Judgment regarding the relative influence of these factors is based on a nine-level scale used to form the fuzzy reciprocal judgment matrices for evaluating the weighting vectors for each layer. Two cases of debris-flow disasters that occurred in eastern Taiwan were tested using the FAHP; one was a debris flow, and the other a mudslide. The results showed that the proposed FAHP models using the three kinds of fuzzy numbers as well as the associated influence factors and criteria can successfully predict the risk of debris-flow hazard occurrence. Furthermore, the predicted overall risk indices obtained from the FAHP using the three kinds of fuzzy numbers were smaller than those obtained from AHP, but more practical due to consideration of the uncertainty and vagueness involved in natural hazards.
{"title":"An FAHP-based Quantitative Method for Risk Assessment of Debris-flow Hazards Using Different Fuzzy Numbers","authors":"Li-Jeng Huang","doi":"10.13101/IJECE.9.32","DOIUrl":"https://doi.org/10.13101/IJECE.9.32","url":null,"abstract":"This paper presents the fuzzy analytic hierarchy process (FAHP) for risk assessment of debris-flow occurrence using three different fuzzy numbers. Three layers are involved in the structure of the FAHP: the goal layer, the criteria layer, and the sub-criteria layer. In the criteria and sub-criteria layers, nine major influence factors are grouped into three categories: (1) topological and geological conditions, which includes the influence factors of slope angle, type of deposit, grain size distribution, and surface plants; (2) watershed conditions, which includes effective watershed area and quantity of outflow of sediment; and (3) rainfall conditions, which includes rainfall intensity, duration, and accumulated rainfall. Judgment regarding the relative influence of these factors is based on a nine-level scale used to form the fuzzy reciprocal judgment matrices for evaluating the weighting vectors for each layer. Two cases of debris-flow disasters that occurred in eastern Taiwan were tested using the FAHP; one was a debris flow, and the other a mudslide. The results showed that the proposed FAHP models using the three kinds of fuzzy numbers as well as the associated influence factors and criteria can successfully predict the risk of debris-flow hazard occurrence. Furthermore, the predicted overall risk indices obtained from the FAHP using the three kinds of fuzzy numbers were smaller than those obtained from AHP, but more practical due to consideration of the uncertainty and vagueness involved in natural hazards.","PeriodicalId":378771,"journal":{"name":"International Journal of Erosion Control Engineering","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127265854","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}
P. Bartelt, B. McArdell, C. Graf, M. Christen, O. Buser
The granular rock material within a debris flow experiences jerk (change in acceleration) as it runs over a rough basal bed or collides with sidewalls. This creates a pressure – the so-called dispersive pressure – which acts to change the configuration of the granular mass and therefore the frictional relationship of the debris flow with the basal boundary. Normal pressures are no longer hydrostatic and pressure fluctuations are created in the fluid phase. In this paper we formulate relationships between internal shear work, free mechanical energy, dispersive pressure and configurational changes within a debris flow. We associate the potential energy of the debris flow configuration with dilatant kinematic motions and show why it is necessary to integrate the shear work over time to calculate boundary jerks which cannot be represented by closed-form, analytical pressure functions. The effect of the dispersive pressure is mediated by the presence of the viscous muddy fluid which consists of two types: a) the free fluid and b) the bonded fluid attached to the solid granular phase.
{"title":"Dispersive pressure, boundary jerk and configurational changes in debris flows","authors":"P. Bartelt, B. McArdell, C. Graf, M. Christen, O. Buser","doi":"10.13101/IJECE.9.1","DOIUrl":"https://doi.org/10.13101/IJECE.9.1","url":null,"abstract":"The granular rock material within a debris flow experiences jerk (change in acceleration) as it runs over a rough basal bed or collides with sidewalls. This creates a pressure – the so-called dispersive pressure – which acts to change the configuration of the granular mass and therefore the frictional relationship of the debris flow with the basal boundary. Normal pressures are no longer hydrostatic and pressure fluctuations are created in the fluid phase. In this paper we formulate relationships between internal shear work, free mechanical energy, dispersive pressure and configurational changes within a debris flow. We associate the potential energy of the debris flow configuration with dilatant kinematic motions and show why it is necessary to integrate the shear work over time to calculate boundary jerks which cannot be represented by closed-form, analytical pressure functions. The effect of the dispersive pressure is mediated by the presence of the viscous muddy fluid which consists of two types: a) the free fluid and b) the bonded fluid attached to the solid granular phase.","PeriodicalId":378771,"journal":{"name":"International Journal of Erosion Control Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114999061","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}
A. Pradhan, P. Tarolli, Hyo-sub Kang, Ji-Sung Lee, Yun-Tae Kim
A physically based slope stability model was applied to predict topographic and climatic control on shallow landslide initiation processes in mountainous terrain. We applied two simple hydrological models, coupled with the infinite slope stability analysis, to the July 2006 landslide event in Deokjeok-ri, South Korea. The rainfall predicted to cause instability in each topographic element is characterized by duration and frequency of occurrence. The incorporation of a rainfall frequency–duration relationship into assessment of landslide susceptibility provides a practical way to include climate information into estimation of the relative potential for shallow landsliding. A GIS-based landslide inventory map of 748 landslide locations was prepared using data from previous reports, aerial photographic interpretation, and extensive field work. This landslide inventory was used to document sites of instability and to provide a test of model performance by comparing observed landslide locations with model predictions. The area under curve of QD-SLaM was 0.79, which means that the overall accuracy of the landslide susceptibility is 79% and the prediction result is good.
{"title":"Shallow Landslide Susceptibility Modeling Incorporating Rainfall Statistics: A Case Study from the Deokjeok-ri Watershed, South Korea","authors":"A. Pradhan, P. Tarolli, Hyo-sub Kang, Ji-Sung Lee, Yun-Tae Kim","doi":"10.13101/IJECE.9.18","DOIUrl":"https://doi.org/10.13101/IJECE.9.18","url":null,"abstract":"A physically based slope stability model was applied to predict topographic and climatic control on shallow landslide initiation processes in mountainous terrain. We applied two simple hydrological models, coupled with the infinite slope stability analysis, to the July 2006 landslide event in Deokjeok-ri, South Korea. The rainfall predicted to cause instability in each topographic element is characterized by duration and frequency of occurrence. The incorporation of a rainfall frequency–duration relationship into assessment of landslide susceptibility provides a practical way to include climate information into estimation of the relative potential for shallow landsliding. A GIS-based landslide inventory map of 748 landslide locations was prepared using data from previous reports, aerial photographic interpretation, and extensive field work. This landslide inventory was used to document sites of instability and to provide a test of model performance by comparing observed landslide locations with model predictions. The area under curve of QD-SLaM was 0.79, which means that the overall accuracy of the landslide susceptibility is 79% and the prediction result is good.","PeriodicalId":378771,"journal":{"name":"International Journal of Erosion Control Engineering","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130052929","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}
T. Wada, T. Furuya, K. Nakatani, T. Mizuyama, Y. Satofuka
Debris flows are characterized by coarser particles being concentrated at their frontal segment during flow. To determine the underlying mechanism of this effect, we carried out flume experiments with sediment mixtures, in which the flume length, bed roughness, and flume inclination were varied. In our experiments, we investigated the phenomenon of frontal segment concentration of courser particles using two lengths of flume, which were considered movable, and two fixed beds at different levels of bed roughness. The flume inclination was varied systematically in the 3 ‒ 18° range. The experiments were conducted under conditions that have not been examined sufficiently in previous flume experiments. We obtained several useful findings regarding the relationships between the various experimental conditions and the mechanism underlying the concentration phenomenon and provide a qualitative analysis of the mechanism based on our findings. The analysis indicates that even when coarser particles do not rise to the upper layer in the interior of a debris flow, they tend to concentrate at the frontal segment as the finer particles fall and migrate backward from the frontal segment.
{"title":"Experimental Study on the Concentration of Coarser Particles at the Frontal Segment of a Debris Flow","authors":"T. Wada, T. Furuya, K. Nakatani, T. Mizuyama, Y. Satofuka","doi":"10.13101/IJECE.8.20","DOIUrl":"https://doi.org/10.13101/IJECE.8.20","url":null,"abstract":"Debris flows are characterized by coarser particles being concentrated at their frontal segment during flow. To determine the underlying mechanism of this effect, we carried out flume experiments with sediment mixtures, in which the flume length, bed roughness, and flume inclination were varied. In our experiments, we investigated the phenomenon of frontal segment concentration of courser particles using two lengths of flume, which were considered movable, and two fixed beds at different levels of bed roughness. The flume inclination was varied systematically in the 3 ‒ 18° range. The experiments were conducted under conditions that have not been examined sufficiently in previous flume experiments. We obtained several useful findings regarding the relationships between the various experimental conditions and the mechanism underlying the concentration phenomenon and provide a qualitative analysis of the mechanism based on our findings. The analysis indicates that even when coarser particles do not rise to the upper layer in the interior of a debris flow, they tend to concentrate at the frontal segment as the finer particles fall and migrate backward from the frontal segment.","PeriodicalId":378771,"journal":{"name":"International Journal of Erosion Control Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128960137","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}
Toshiya Ueno, S. Shiiba, Keiji Yoshida, Andry F. Simanjuntak, Koji Morita
A deep-seated rapid (catastrophic) landslide is a phenomenon that may cause serious damage due to the large amount of sediment movement, such as the formation of a landslide dam and debris flows. In Japan, a method for estimating deep-seated rapid (catastrophic) landslide susceptibilities for many small catchments (ca. 1 km 2 ) over relatively large areas (ca. hundreds of km 2 ) was proposed in 2008. In the present study, we applied the Japanese method to the northern part of Jember, East Java, Indonesia, where a debris flow disaster occurred due to the collapse of a landslide dam formed by a deep-seated rapid (catastrophic) landslide in 2004. Although there were several limitations related to data availability, we successfully assessed susceptibility to deep-seated rapid landslides.
{"title":"Applying a Method for Assessing Deep-Seated Rapid Landslide Susceptibility in Jember District, East Java Province, Indonesia","authors":"Toshiya Ueno, S. Shiiba, Keiji Yoshida, Andry F. Simanjuntak, Koji Morita","doi":"10.13101/IJECE.8.11","DOIUrl":"https://doi.org/10.13101/IJECE.8.11","url":null,"abstract":"A deep-seated rapid (catastrophic) landslide is a phenomenon that may cause serious damage due to the large amount of sediment movement, such as the formation of a landslide dam and debris flows. In Japan, a method for estimating deep-seated rapid (catastrophic) landslide susceptibilities for many small catchments (ca. 1 km 2 ) over relatively large areas (ca. hundreds of km 2 ) was proposed in 2008. In the present study, we applied the Japanese method to the northern part of Jember, East Java, Indonesia, where a debris flow disaster occurred due to the collapse of a landslide dam formed by a deep-seated rapid (catastrophic) landslide in 2004. Although there were several limitations related to data availability, we successfully assessed susceptibility to deep-seated rapid landslides.","PeriodicalId":378771,"journal":{"name":"International Journal of Erosion Control Engineering","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125754042","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}
Shinsaku Hayashi, T. Uchida, A. Okamoto, N. Osanai, Changwook Lee, C. Woo
1 National Institute for Land and Infrastructure Management (Asahi 1, Tsukuba, Ibaraki 3050804, Japan) E-mail: sabou@nilim.go.jp 2 Ministry of Land, Infrastructure, Transport and Tourism (Kasumigaseki 2-1-3, Chiyoda-ku, Tokyo 1008918, Japan) 3 Public Works Research Institute (Minamihara 1-6, Tsukuba, Ibaraki 3058516, Japan) 4 Korea Forest Research Institutes (57, Hoegiro, Dongdaemun-gu, Seoul 130712, Korea)
{"title":"Estimation of the Socio-Economic Impacts of Sediment Disasters by Using Evaluation Indexes of the Magnitude of Sediment Movement and Level of Damage to Society","authors":"Shinsaku Hayashi, T. Uchida, A. Okamoto, N. Osanai, Changwook Lee, C. Woo","doi":"10.13101/IJECE.8.1","DOIUrl":"https://doi.org/10.13101/IJECE.8.1","url":null,"abstract":"1 National Institute for Land and Infrastructure Management (Asahi 1, Tsukuba, Ibaraki 3050804, Japan) E-mail: sabou@nilim.go.jp 2 Ministry of Land, Infrastructure, Transport and Tourism (Kasumigaseki 2-1-3, Chiyoda-ku, Tokyo 1008918, Japan) 3 Public Works Research Institute (Minamihara 1-6, Tsukuba, Ibaraki 3058516, Japan) 4 Korea Forest Research Institutes (57, Hoegiro, Dongdaemun-gu, Seoul 130712, Korea)","PeriodicalId":378771,"journal":{"name":"International Journal of Erosion Control Engineering","volume":"283 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127984592","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}
K. Goto, T. Itoh, Takahiko Nagayama, M. Kasai, T. Marutani
1 Research and Development Center, Nippon Koei Co., Ltd. (2304, Inarihara, Tsukuba, Ibaraki 3001259, Japan) E-mail: a6825@n-koei.co.jp 2 Research and Development Center, Nippon Koei Co., Ltd. (2304, Inarihara, Tsukuba, Ibaraki 3001259, Japan) 3 Nippon Koei Co., Ltd. (4-2, Koji-machi, Chiyoda-ku, Tokyo 1020083, Japan) 4 Graduate School of Agriculture, Hokkaido University (Kita 9 Nishi 9, Kita-ku, Sapporo, Hokkaido 0608589, Japan)
{"title":"Experimental and theoretical tools for estimating bedload transport using a Japanese pipe hydrophone","authors":"K. Goto, T. Itoh, Takahiko Nagayama, M. Kasai, T. Marutani","doi":"10.13101/IJECE.7.101","DOIUrl":"https://doi.org/10.13101/IJECE.7.101","url":null,"abstract":"1 Research and Development Center, Nippon Koei Co., Ltd. (2304, Inarihara, Tsukuba, Ibaraki 3001259, Japan) E-mail: a6825@n-koei.co.jp 2 Research and Development Center, Nippon Koei Co., Ltd. (2304, Inarihara, Tsukuba, Ibaraki 3001259, Japan) 3 Nippon Koei Co., Ltd. (4-2, Koji-machi, Chiyoda-ku, Tokyo 1020083, Japan) 4 Graduate School of Agriculture, Hokkaido University (Kita 9 Nishi 9, Kita-ku, Sapporo, Hokkaido 0608589, Japan)","PeriodicalId":378771,"journal":{"name":"International Journal of Erosion Control Engineering","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127585145","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}
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