Faculty Profiles - WATANABE Naoki

Papers - WATANABE Naoki

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Investigation of groundwater flows inducing fluidized landslides at source areas of debris flows in metamorphic mountains, Japan Reviewed

Furuya G, Suemine A, Komatsubara T, Watanabe N, Marui H

Disaster Mitigation of Debris Flows, Slope Failures and Landslides 2 481 - 489 2006.9

Influence of weathering on physical and mechanical properties of mudstone Reviewed

Bhattarai P, Marui H, Tiwari B, Watanabe N, Tuladhar G.R, Aoyama K

Disaster Mitigation of Debris Flows, Slope Failures and Landslides 2 467 - 469 2006.9

Relationship between groundwater flow estimated by soil temperature and slope failures caused by heavy rainfall, Shikoku Island, southwestern Japan Reviewed

G Furuya, A Suemine, K Sassa, T Komatsubara, N Watanabe, H Marui

ENGINEERING GEOLOGY 85 ( 3-4 ) 332 - 346 2006.6

Heavy-rainfall induced landslides on July 13, 2004, Niigata

Yamagishi H, Watanabe N, Ayalew L, andslide Research, Group of L, slide Society of Japan

Monitoring, Prediction and Mitigation of Water-Related Disasters MPMD-2005 501 - 506 2005.12

Distribution and Origin of High Na-Cl Concentration Groundwater in Landslide Mass, at Higashi-kubiki Area, Niigata, Japan Reviewed

FURUYA Gen, WATANABE Naoki, KOMATSUBARA Takeshi, SATO Osamu, MARUI Hideaki

Journal of the Japan Society of Engineering Geology 45 ( 6 ) 281 - 290 2005.12

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society of Engineering Geology

Na-Cl type groundwaters of high concentration have been often found at landslides in the Higashi-kubiki area, including the Utsunomata landslide, in Niigata Prefecture, Japan. The well loggings were carried out to profile the electric conductivity of groundwater in the landslide mass, and simultaneously groundwater samples were collected for the chemical analysis and the determination of oxygen isotopic ratio. The groundwater profiles in the active landslide mass showed the drastic increase of the electric conductivity around the depth of sliding surface. Such a feature is similar to the chemocline. On the other hand, in the inactive landslide mass, no significant variation was recognized in the profile. Groundwater collected from shallow to deep layer in the landslide mass were chemically classified into following four types in descending order : (1)Ca-HCO_3 and Na, Ca-HCO_3, (2)Na-SO_4, (3)Na-HCO_3, and (4)Na-Cl. Considering the relationship between the oxygen isotope ratio and chloride concentration, Na-Cl type groundwater were formed by the mixing the meteoric water with the altered fossil seawater that underwent a similar diagenesis to the the Nishiyama formation. These groundwater suggest that the deep fossil seawater as an abnormally pressured hydrothermal fluid ascend through the fault fractures and inject the landslide mass.

DOI： 10.5110/jjseg.45.281

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Other Link： https://jlc.jst.go.jp/DN/JALC/00247680409?from=CiNii

2004年新潟県中越地震に伴う地下水温・水質の異常

佐藤早苗, 氏原英敏, 豊島剛志, 小林健太, 渡部直喜, 大川直樹, 和田幸永, 小河原孝彦, 播磨雄太, 小泉尚嗣

新潟大学積雪地域災害研究センター研究年報 27号 41 - 56 2005.12

新潟県中越地震による土砂災害と融雪後の土砂移動状況の変化 Reviewed

川邉洋, 権田豊, 丸井英明, 渡部直喜, 土屋智, 小山内信智, 内田太郎, 栗原淳一, 中村良光, 井上公夫, 小川紀一朗, 小野田敏

砂防学会誌 58 ( 3 ) 44 - 50 2005.9

新潟県中越地震における地震断層と地表変状の構造地質学的調査

豊島剛志, 小林健太, 岩下享平, 大塚洋之, 佐藤早苗, 氏原英敏, 大川直樹, 大橋聖和, 和田幸永, 小安孝幸, 小河原孝彦, 山本亮, 渡部直喜, 立石雅昭, 島津光夫

新潟県連続災害の検証と復興への視点新潟大学・中越地震新潟大学調査団 21 - 31 2005.8

2004 年新潟県中越地震による地下水異常

佐藤早苗, 氏原英敏, 豊島剛志, 小林健太, 渡部直喜, 大川直樹, 和田幸永, 小河原孝彦, 播磨雄太

新潟県連続災害の検証と復興への視点新潟大学・中越地震新潟大学調査団 50 - 56 2005.8

Effect of NaCl solution as pore water on the residual shear strength and index properties of soil from mudstone area Reviewed

Tuladhar G.R, Marui H, Watanabe N, Tiwari N

日本地すべり学会誌 42 ( 1 ) 1 - 7 2005.5

2004年新潟県中越地震による土砂災害(速報) Reviewed

川邉洋, 権田豊, 丸井英明, 渡部直喜, 土屋智, 北原曜, 小山内信智, 笹原克夫, 中村良光, 井上公夫, 小川紀一朗, 小野田敏

砂防学会誌 57 ( 5 ) 39 - 46 2005.3

Hydrogeochemistry and environmental oxygen isotopes of groundwaters from the Muikamachi Basin,Niigata Prefecture Reviewed

Cheibany O.E, Watanabe N

水文・水資源学会誌 18 ( 2 ) 140 - 155 2005.3

Chemical weathering and the occurrence of large-scale landslides in the Hime River Basin, central Japan Reviewed

N Watanabe, N Yonekura, W Sagara, OE Cheibany, H Marui, G Furuya

LandSlides: Risk Analysis and Sustainable Disaster Management 165 - 171 2005

Landslide susceptibility mapping using a semi-quantitative approach, a case study from Kakuda-Yahiko Mountains, Niigata, Japan Reviewed

Ayalew L, Watanabe N, Marui H, Yamagishi H

Proceedings of the 4th Asian Symposium on Engineering Geology and the Environment, Hong kong, China 99 - 106 2004.12

新潟県中越地震により発生した斜面災害

丸井英明, 吉松弘行, 渡部直喜

新潟大学積雪地域災害研究センター研究年報 26号 79 - 86 2004.12

Debris disasters caused by local heavy rainfall in Niigata area in July 2004 (prompt report) Reviewed

MARUI Hideaki, WATANABE Naoki, KAWABE Hiroshi, GONDA Yutaka, IRASAWA Michiya, SASAHARA Katsuo, NAKAMURA Yoshimitsu, YASUDA Yuji

Journal of the Japan Society of Erosion Control Engineering 57 ( 3 ) 53 - 59 2004.9

信濃川地震帯の地熱水について(予報) Invited

渡部直喜, 小松原岳史, ウルドゥ・エレミン=シェイバニ, 中川勉

(財)環境地質科学研究所研究年報 13号 ( 13 ) 29 - 42 2002.4

Carbon and Oxygen isotopes determination for carbonate samples at Research Institute for Hazards in Snowy Area, Niigata University

MIYAZAKI Takashi, IKAWA Toshiyuki, WATANABE Naoki

Annual report of the Research Institute for Hazards in Snowy Area, Niigata University 23 ( 23 ) 27 - 34 2001.12

Engineering properties of the soil around Nishiyama and Kompirayama after the eruption at Mount Usu in 2000

Tiwari B, Marui H, Sato O, Yamagishi H, Watanabe N, Furuya G, Suzuki K, Inaba K, Shimura K, Yamazaki F

新潟大学積雪地域災害研究センター研究年報 23 ( 23 ) 63 - 76 2001.12

Damage assesment after the eruption of Mount Usu in 2000

Tiwari B, Marui H, Sato O, Yamagishi H, Watanabe N, Furuya G, Suzuki K, Inaba K, Shimura K, Yamazaki F

新潟大学積雪地域災害研究センター研究年報 ( 23 ) 77 - 84 2001.12

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