Sakai Naoki 酒井直樹

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SAKAI Naoki 酒井直樹

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Researcher Number	40414990
Other IDs
Affiliation (Current)	2025: 国立研究開発法人防災科学技術研究所, 極端気象災害研究領域水・土砂防災研究部門, 上席研究員
Affiliation (based on the past Project Information) *help	2014: 独立行政法人防災科学技術研究所, 水・土砂防災研究ユニット, 主任研究員 2012: 独立行政法人防災科学技術研究所, 水・土砂防災研究部, 主任研究員 2012: 独立行政法人防災科学技術研究所, 観測・予測研究領域, 主任研究員 2011 – 2012: 独立行政法人防災科学技術研究所, 観測・予測研究領域水・土砂防災研究ユニット, 主任研究員
Review Section/Research Field	Except Principal Investigator Geotechnical engineering / Forest science
Keywords	Except Principal Investigator 降雨 / 盛土 / 水分特性曲線 / 有限要素法 / 弾塑性論 / 構成則 / 締固め / 土構造物 / 大変形 / 多相混合体 … More / 有限変形論 / 多相混合体理論 / 浸水コラプス / 超弾性構成則 / 豪雨 / 締固め現象 / 有限変形解析 / 弾塑性構成則 / 不飽和土 / 間隙水圧 / ひずみ増分比 / 切り土掘削 / 土工 / 垂直ひずみ / ダイレイタンシー / せん断ひずみ / モニタリング / 斜面崩壊 / 礫質土 / 液状化 / 地下水水質 / 内水氾濫 / 被圧地下水 / 消雪井戸 / 地下水涵養 / 地盤防災 Less

Solving a lifetime of embankment from construction process to deformation and failure due to heavy rain
- Principal Investigator
  
  KIKUMOTO Mamoru
- Project Period (FY)
  2012 – 2014
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Geotechnical engineering
- Research Institution
  Yokohama National University
The monitoring of the deformation of the slope and the time prediction Based on the stress-dilatancy of the soil
- Principal Investigator
  
  SASAHARA Katsuo
- Project Period (FY)
  2011 – 2012
- Research Category
  
  Grant-in-Aid for Challenging Exploratory Research
- Research Field
  
  Forest science
- Research Institution
  Kochi University
Fundamental study on measures of flood control considering groundwater recharge-Attempt utilizing regional characteristics-
- Principal Investigator
  
  TOYOTA Hirofumi
- Project Period (FY)
  2010 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geotechnical engineering
- Research Institution
  Nagaoka University of Technology

All 2012 2011

All Journal Article Presentation

[Journal Article] Shear strain development and pore pressure distribution in sandy model slope under repeated rainfall, Advances in transportation Geotechnics II2012
- Author(s)
  K.Sasahara & N.Sakai
- Journal Title
  
  PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON TARNSPORTATION GEOTECHNICS (2ND ICTG)
  
  Volume: ISBN 978-0-415-62135-9 Pages: 743-748
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23658130
[Journal Article] 不飽和砂質斜面の降雨浸透による吸水に伴うせん断変形2012
- Author(s)
  笹原克夫,酒井直樹
- Journal Title
  
  日本地すべり学会誌
  
  Volume: Vol.49,No.4 Pages: 25-33
- NAID
  10030973140
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23658130
[Journal Article] Shear deformation and failure of sandy slope according to pore pressure generation due to rainfall infiltration2011
- Author(s)
  Katsuo Sasahara and Naoki Sakai
- Journal Title
  
  PROCEEDINGS of First International Conference on Geotechnique, Construction Materials and Environment, Mie, Japan
  
  Volume: Volume 1 Pages: 147-152
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23658130
[Journal Article] Shear Deformation Development and the Increase of Pore Pressure due to Rainfall Infiltration in Sandy Model Slope under Different Inclination2011
- Author(s)
  Sasahara K.and Sakai N
- Journal Title
  
  Int. J. of GEOMAT(Geotechnique, Construction Materials & Environment)
  
  Volume: Vol.1 Pages: 64-70
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23658130
[Journal Article] Shear Deformation Development and the Increase of Pore Pressure due to Rainfall Infiltration in Sandy Model Slope under Different Inclination2011
- Author(s)
  Sasahara K. and Sakai N.
- Journal Title
  
  Int. J. of GEOMAT
  
  Volume: Vol. 1, No. 1 (Sl. No. 1) Pages: 64-70
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23658130
[Journal Article] Shear deformation mechanism of unsaturated soil during rainfall infiltration based on slope model test2011
- Author(s)
  Naoki SAKAI, Katsuo SASAHARA, Tomohiro ISHIZAWA and Teruki FUKUZONO
- Journal Title
  
  Proceeding of International Symposium on Sediment Disasters under the Influence of Climate Chang and Tectonic Activity
  
  Pages: 18-19
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23658130
[Presentation] Stress-strain relation for early warning system against rainfall-induced landslide2012
- Author(s)
  Katsuo SASAHARA & Naoki SAKAI
- Organizer
  Proceeding of The 3rd International Workshop on Multimodal Sediment Disasters-Challenge to Huge Sediment Disaster Mitigation-
- Place of Presentation
  京都大学防災研究所穂高観測所(岐阜県高山市)
- Data Source
  KAKENHI-PROJECT-23658130
[Presentation] 降雨履歴が湿潤線降下に伴う斜面変形挙動に与える影響2011
- Author(s)
  石澤友浩, 笹原克夫,酒井直樹,福囿輝旗
- Organizer
  平成 23 年度砂防学会研究発表会
- Place of Presentation
  神奈川県民文化ホール(横浜市)
- Data Source
  KAKENHI-PROJECT-23658130
[Presentation] 降雨浸透に伴う砂質模型斜面の吸水・排水過程におけるせん断変形2011
- Author(s)
  笹原克夫,酒井直樹
- Organizer
  第46回地盤工学研究発表会
- Place of Presentation
  神戸国際会議場(神戸市)
- Data Source
  KAKENHI-PROJECT-23658130

1. TOYOTA Hirofumi (90272864)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
2. SUGIMOTO Mitsutaka (50196755)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
3. HOSOYAMADA Tokuzo (70262475)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
4. YAMAGUCHI Takashi (10280447)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
5. KOGO Yuji (30414452)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. NISHIMURA Tomoyoshi (00237736)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. NAKAMURA Koichi (90530642)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. SASAHARA Katsuo (90391622)

# of Collaborated Projects: 1 results

# of Collaborated Products: 9 results
9. ITOH Kazuya (80371095)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
10. KIKUMOTO Mamoru (90508342)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
11. NAKASHIMA Shinichiro (70346089)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. KOYAMA Tomofumi (20467450)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

Sakai Naoki 酒井 直樹

SAKAI Naoki 酒井 直樹

Research Projects

Research Products

Co-Researchers

Solving a lifetime of embankment from construction process to deformation and failure due to heavy rain

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

The monitoring of the deformation of the slope and the time prediction Based on the stress-dilatancy of the soil

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Fundamental study on measures of flood control considering groundwater recharge-Attempt utilizing regional characteristics-

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Shear strain development and pore pressure distribution in sandy model slope under repeated rainfall, Advances in transportation Geotechnics II2012

Author(s)

Journal Title

Data Source

[Journal Article] 不飽和砂質斜面の降雨浸透による吸水に伴うせん断変形2012

Author(s)

Journal Title

NAID

Data Source

[Journal Article] Shear deformation and failure of sandy slope according to pore pressure generation due to rainfall infiltration2011

Author(s)

Journal Title

Data Source

[Journal Article] Shear Deformation Development and the Increase of Pore Pressure due to Rainfall Infiltration in Sandy Model Slope under Different Inclination2011

Author(s)

Journal Title

Data Source

[Journal Article] Shear Deformation Development and the Increase of Pore Pressure due to Rainfall Infiltration in Sandy Model Slope under Different Inclination2011

Author(s)

Journal Title

Data Source

[Journal Article] Shear deformation mechanism of unsaturated soil during rainfall infiltration based on slope model test2011

Author(s)

Journal Title

Data Source

[Presentation] Stress-strain relation for early warning system against rainfall-induced landslide2012

Author(s)

Organizer

Place of Presentation

Data Source

[Presentation] 降雨履歴が湿潤線降下に伴う斜面変形挙動に与える影響2011

Author(s)

Organizer

Place of Presentation

Data Source

[Presentation] 降雨浸透に伴う砂質模型斜面の吸水・排水過程におけるせん断変形2011

Author(s)

Organizer

Place of Presentation

Data Source

Sakai Naoki 酒井直樹

SAKAI Naoki 酒井直樹