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Residual Strength of Soils and Its Application in Landslide Stability Analysis

Research Project

Project/Area Number 12650498
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Geotechnical engineering
Research InstitutionEhime University

Principal Investigator

YATABE Ryuichi  Ehime University, Faculty of Engineering, Professor, 工学部, 教授 (70127918)

Co-Investigator(Kenkyū-buntansha) YOKOTA Kinutada  Ehime University, Faculty of Engineering, Assoc. Professor, 工学部, 助教授 (30036363)
YAGI Norio  Ehime University, Faculty of Engineering, Professor, 工学部, 教授 (00027228)
Project Period (FY) 2000 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 2001: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2000: ¥2,600,000 (Direct Cost: ¥2,600,000)
KeywordsLandslide / Clay / Shear test / Simple shear / direct shear / slip surface / Expansive minerals / stability analysis / 地すベり
Research Abstract

Residual state of a soil in shear deformation is a state when change in soil volume during the shear is zero, and it is attained when all the soil particles on the shear planes get reoriented toward the shear direction. Residual state of soil plays a significant role in landslide stability problems because strength of slip surface soil is governed by the residual conditions after having slid for a long duration. It is therefore important to investigate the strength behaviors of landslide soils at their residual states and to employ them in the stability analysis. This research includes two major lab investigations: 1) strength properties of landslide soils and 2) influence of clay minerals on soil strength. The investigation results were then employed in carrying out stability analysis of the landslides. Several soil samples were obtained from various landslide sites in Shikoku representing various geological conditions for the lab tests. The strength properties were investigated by ri … More ng shear apparatuses based on direct as well as simple shear principles, and the mineral properties were investigated by x-ray diffraction analysis. The investigation results are summarized as follows.
First, the strength measured by direct shear type ring shear apparatus was found to differ in many aspects from that by the simple shear type. It is because the direct shear type apparatus possesses a pre-specified plane of shear, which may result in a lower residual strength of a soil with higher content of finer particles and a higher strength of a soil with higher percentage of coarser particles. In contrast, a simple shear type apparatus gives comparatively accurate results because the soil sample gets sheared though the weakest plane in the entire depth of specimen. Second, the shear strength of landslide soils in Shikoku was investigated to be very low, which is mainly due to a significant amount of expansive clay minerals in the slip surface soil. The x-ray diffraction tests revealed that the amount of expansive chlorite in landslide soils originated from metamorphic rocks in particular is high, which plays a significant role in lowering the soil strength. Third, the stability analyses results showed that the slip surface soils, especially in case of large-scale landslides have reached the residual state, which was confirmed by back analysis of some active landslides. Finally, it was considered that application of lab-determined strength parameters in stability analysis for the landslides is more feasible in many aspects than carrying out back analysis. Less

Report

(3 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • Research Products

    (57 results)

All Other

All Publications (57 results)

  • [Publications] 矢田部 龍一, 横田 公忠, 須賀 幸一, BHANDARY Netra: "降雨時の斜面安定解析の現状と課題"地すべり. 38巻. 88-94 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] YATABE Ryuichi: "Stability analysis of slopes during seepage of rainwater"Symposium on Geotechnical & environmental challenges in mountainous terrain. Vol.1. 402-407 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] SUGA Koichi, YATABE Ryuichi, TAKATA Shuzo: "Geotechnical aspects of cut slope failures in Izumi group"Symposium on Geotechnical & environmental challenges in mountainous terrain. Vol.1. 391-396 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] BHANDARY Netra, YATABE Ryuichi, YAGI Norio 他: "Some prominent creeping landslides in Shikoku region of Japan"Symposium on Geotechnical & environmental challenges in mountainous terrain. Vol.1. 246-252 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] BHATTARAI Kishor, YATABE Ryuichi, YAGI Norio: "Parameters affecting shearing behavior of sample under high speed ring shearing"Symposium on Geotechnical & environmental challenges in mountainous terrain. Vol.1. 228-236 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] NISHIMURA Fumitake, YATABE Ryuichi, YOKOTA Kinutada 他: "General characteristics of landslides in Ehime region"Symposium on Geotechnical & environmental challenges in mountainous terrain. Vol.1. 397-401 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 矢田部 龍一, 横田 公忠, 須賀 幸一, 長谷川 修一: "降雨による斜面の崩壊機構"豪雨時の斜面崩壊のメカニズムと予測に関する論文集. 13-22 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 矢田部 龍一, 八木 則男, 須賀 幸一, 榎 明潔: "降雨時の砂質土斜面の崩壊機構と崩壊予測"豪雨と地震による斜面崩壊論文集. 第1巻. 99-110 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] MUKAITANI Mitsuhiko, ICHINOSE Emi, YATABE Ryuichi 他: "A case study on failure of cut slope consisting of swelling clay"CLAY SCIENCE FOR ENGINEERING. 179-185 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] BHANDARY Netra, YATABE Ryuichi, YAGI Norio 他: "Strength behavior of swollen bentonite"CLAY SCIENCE FOR ENGINEERING. 453-458 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] YOKOTA Kinutada, YATABE Ryuichi, YAGI Norio: "Shear strength of landslide clay soil containing weathered serpentinite"Journal of Nepal Geological Society. Vol.22. 147-154 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] BHANDARY Netra, YATABE Ryuichi, YAGI Norio 他: "Mechanical Analysis of Sawatari Landslide in Shikoku, Japan"Journal of Nepal Geological Society. Vol.22. 491-496 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 夕部 雅丈, 岡村 眞, 矢田部 龍一, 八木 則男, 横田公忠: "四国中央部御荷鉾帯の緑色岩の風化と地すべり(1)"地すべり. 第37巻. 42-49 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] YAGI Norio, YATABE Ryuichi, YOKOTA Kinutada, 他: "MECHANISM OF SLOPE FAILURE IN IZUMI GROUP DUE TO CUTTING"Geotechnical & Geological Engineering. (CDR). (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] YATABE Ryuichi, YOKOTA Kinutada, YAGI Norio 他: "INFLUENCE OF EXPANSIVE CHLORITE ON THE STRENGTH OF WEATHERED GREEN ROCKAT MIKABU BELT"Geotechnical & Geological Engineering. (CDR). (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 矢田部 龍一, 横田 公忠, 石井 朋紀, 夕部 雅丈: "四国の地すべりの一般的特性"地すべり. 第37巻. 50-56 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] YOKOTA Kinutada, YATABE Ryuichi, YAGI Norio: "Improvement of strength characteristics of surplus soil by slag addition"Coastal Geotechnical Engineering in Practice. Vol.1. 777-780 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] YATABE Ryuichi, YAGI Norio YOKOTA Kinutada 他: "Mechanical Characteristics and Countermeasures of Landslides at the Fractured Zone on Tectonic Lines"International Symposium on Landslides. 491-499 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] YATABE Ryuichi, YOKOTA Kinutada, BHANDARY Netra: "Suction measurement for the prediction of slope failure due to rainfall"ASIAN CONFERENCE ON UNSATURATED SOILS. 847-851 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yatabe, R., Yokota, K., Suga, K., and BHANDARY Netra: "Slope Stability Analysis during Rainfalls (In Japanese)"Jisuberi. 38/3. 88-94 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] YATABE Ryuichi: "Stability analysis of slopes during seepage of rainwater"Symposium on Geotechnical & environmental challenges in mountainous terrain. Vol. 1. 402-407 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] SUGA Koichi, YATABE Ryuichi TAKATA Shuzo: "Geotechnical aspects of cut slope failures in Izumi group"Symposium on Geotechnical & environmental challenges in mountainous terrain. Vol. 1. 391-396 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] BHANDARY Netra, YATABE Ryuichi, YAGI Norio et al.: "Some prominent creeping landslides in Shikoku region of Japan"Symposium on Geotechnical & environmental challenges in mountainous terrain. Vol. 1. 246-252 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] BHATTARAI Kishor, YATABE Ryuichi, YAGI Norio: "Parameters affecting shearing behavior of sample under high speed ring shearing"Symposium on Geotechnical & environmental challenges in mountainous terrain. Vol. 1. 228-236 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] NISHIMURA Fumitake, YATABE Ryuichi, YOKOTA Kinutada et al.: "General characteristics of landslides in Ehime region"Symposium on Geotechnical & environmental challenges in mountainous terrain. Vol. 1. 397-401 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yatabe, R., Yokota, K., Suga, K., and Hasegawa, S.: "Mechanism of Slope Failure during Rainfalls (In Japanese)"Proc. of a symposium on mechanism and prediction of slope failures during heavy rainfalls. 13-22 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yatabe, R., Yagi, N. Suga, K. and Enoki, M.: "Mechanism and prediction of slope failures during rainfalls (In Japanese)"Proc. of a symposium on slope failures due to heavy rainfalls and earthquakes. Vol. 1. 99-110 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] MUKAITANI Mitsuhiko, ICHINOSE Emi, YATABE Ryuichi et al.: "A case study on failure of cut slope consisting of swelling clay"CLAY SCIENCE FOR ENGINEERING. 179-185 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] BHANDARY Netra, YATABE Ryuichi, YAGI Norio et al.: "Strength behavior of swollen bentonite"CLAY SCIENCE FOR ENGINEERING. 453-458 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] YOKOTA Kinutada, YATABE Ryuichi, YAGI Norio: "Shear strength of landslide clay soil containing weathered serpentinite"Journal of Nepal Geological Society. Vol. 22. 147-154 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] BHANDARY Netra, YATABE Ryuichi, YAGI Norio et al.: "Mechanical Analysis of Sawatari Landslide in Shikoku, Japan"Journal of Nepal Geological Society. Vol. 22. 491-496 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yube, M. Okamura, Yatabe, R., Yagi, N. and Yokota, K.: "Weathering of Mikabu Greenstone in Central Shikoku and associated landslides(1) (In Japanese)"Jisuberi. 37/3. 42-49 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] YAGI Norio, YATABE Ryuichi, YOKOTA Kinutada, et al.: "MECHANISM OF SLOPE FAILURE IN IZUMI GROUP DUE TO CUTTING"Geotechnical & Geological Engineering. (CDR). (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] YATABE Ryuichi, YOKOTA Kinutada, YAGI Norio et al.: "INFLUENCE OF EXPANSIVE CHLORITE ON THE STRENGTH OF WEATHERED GREEN ROCK AT MIKABU BELT"Geotechnical & Geological Engineering. (CDR). (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yatabe, R., Yokota, K, Ishii, T., and Yube, M.: "General Characteristics of Landslides in Shikoku (In Japanese)"Jisuberi. 37/3. 50-56 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] YOKOTA Kinutada, YATABE Ryuichi, YAGI Norio et al.: "Improvement of strength characteristics of surplus soil by slag addition"Coastal Geotechnical Engineering in Practice. Vol. 1. 777-780 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] YATABE Ryuichi, YAGI Norio, YOKOTA Kinutada et al.: "Mechanical Characteristics and Countermeasures of Landslides at the Fractured Zone on Tectonic Lines"International Symposium on Landslides. 491-499 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] YATABE Ryuichi, YOKOTA Kinutada, BHANDARY Netra: "Suction measurement for the prediction of slope failure due to rainfall"ASIAN CONFERENCE ON UNSATURATED SOILS. 847-851 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 矢田部 龍一, 横田 公忠, 須賀幸一, BHANDARY Netra: "降雨時の斜面安定解析の現状と課題"地すべり. 38巻3号. 88-94 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] YATABE Ryuichi: "Stability analysis of slopes during seepage of rainwater"Symposium on Geotechnical & environmental challenges in mountainous terrain. Vol.1. 402-407 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] SUGA Koichi, YATABE Ryuichi, TAKATA Shuzo: "Geotechinical aspects of cut slope failures in Izumi group"Symposium on Geotechnical & environmental challenges in mountainous terrain. Vol.1. 391-396 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] BHANDARY Netra, YATABE Ryuichi, YAGI Norio 他: "Some prominent creeping landslides in Shikoku region of Japan"Symposium on Geotechnical & environmental challenges in mountainous terrain. Vol.1. 246-252 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] BHATTARAI Kishor, YATABE Ryuichi, YAGI Norio: "Parameters affecting shearing behavior of sample under high speed ring shearing"Symposium on Geotechnical & environmental challenges in mountainous terrain. Vol.1. 228-236 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] NISHIMURA Fumitake, YATABE Ryuichi, YOKOTA Kinutada 他: "General characteristics of landslides in Ehime region"Symposium on Geotechnical & environmental challenges in mountainous terrain. Vol.1. 397-401 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 矢田部 龍一, 横田 公忠, 須賀 幸一, 長谷川 修一: "降雨による斜面の崩壊機構"豪雨時の斜面崩壊のメカニズムと予測に関する論文集. 13-22 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 矢田部 龍一, 八木 則男, 須賀 幸一, 榎 明潔: "降雨時の砂質土斜面の崩壊機構と崩壊予測"豪雨と地震による斜面崩壊論文集. 第1巻. 99-110 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] MUKAITANI Mitsuhiko, ICHINOSE Emi, YATABE Ryuichi 他: "A case study on failure of cut slope consisting of swelling clay"CLAY SCIENCE FOR ENGINEERING. 179-185 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] BHANDARY Netra, YATABE Ryuichi, YAGI Norio 他: "Strength behavior of swollen bentonite"CLAY SCIENCE FOR ENGINEERING. 453-458 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] YOKOTA Kinutada, YATABE Ryuichi, YAGI Norio: "Shear strength of landslide clay soil containing weathered serpentinite"Journal of Nepal Geological Society. Vol.22. 147-154 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] BHANDARY Netra, YATABE Ryuichi, YAGI Norio 他: "Mechanical Analysis of Sawatari Landslide in Shikoku, Japan"Journal of Nepal Geological Society. Vol.22. 491-496 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] 夕部 雅丈, 岡村 眞, 矢田部 龍一, 八木 則男, 横田 公忠: "四国中央部御荷鉾帯の緑色岩の風化と地すべり(1)"地すべり. 第37巻,第3号. 42-49 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] YAGI Norio, YATABE Ryuichi, YOKOTA Kinutada 他: "MECHANISM OF SLOPE FAILURE IN IZUMI GROUP DUE TO CUTTING"Geotechnical & Geological Engineering. (CDR). (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] YATABE Ryuichi, YOKOTA Kinutada, YAGI Norio 他: "INFLUENCE OF EXPANSIVE CHLORITE ON THE STRENGTH OF WEATHERED GREEN ROCK AT MIKABU BELT"Geotechnical & Geological Engineering. (CDR). (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 矢田部 龍一, 横田 公忠, 石井 朋紀, 夕部 雅丈: "四国の地すべりの一般的特性"地すべり. 第37巻,第3号. 50-56 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] YOKOTA Kinutada, YATABE Ryuichi, YAGI Norio 他: "Improvement of strength characteristics of surplus soil by slag addition"Coastal Geotechnical Engineering in Practice. Vol.1. 777-780 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] YATABE Ryuichi, YAGI Norio, YOKOTA Kinutada 他: "Mechanical Characteristics and Countermeasures of Landslides at the Fractured Zone on Tectonic Lines"International Symposium on Landslides. 491-499 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] YAYABE Ryuichi, YOKOTA Kinutada, BHANDARY Netra: "Suction measurement for the prediction of slope failure due to rainfall"ASIAN CONFERENCE ON UNSATURATED SOILS. 847-851 (2000)

    • Related Report
      2001 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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