Find Research Outputs

Search concepts
Selected filters
2016

Numerical simulation for runout process of debris flow using depth-averaged material point method

Abe, K. & Konagai, K. 2016 Oct 1 In : Soils and Foundations. 56, 5, p. 869-888 20 p.

Research output: Contribution to journalArticle

Debris
Equations of motion
Numerical methods
Sand
Soils

Substantiation of debris flow velocity from super-elevation: a numerical approach

Rahman, M. A. & Konagai, K. 2016 Jun 27 In : Landslides. p. 1-15 15 p.

Research output: Contribution to journalArticle

Debris
Flow velocity
Earthquakes
Hazards
Vortex flow
2015

Liquefaction-induced ground subsidence extracted from Digital Surface Models and its application to hazard map of Urayasu city, Japan

Kajihara, K., Pokhrel, R. M., Kiyota, T. & Konagai, K. 2015 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015: New Innovations and Sustainability. Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, p. 829-834 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

liquefaction
subsidence
road
earthquake
hazard

Numerical simulation of a series of flume tests with dry and wet sands by using depth averaged material point method

Abe, K. & Konagai, K. 2015 Jan 1 Geomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014. Taylor and Francis - Balkema, Vol. 2, p. 971-976 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

simulation
sand
soil
sensitivity analysis
2014

Evidence of a hidden landslide slip surface beneath a mountain hamlet

Zhao, Y. & Konagai, K. 2014 Jan 1 In : Environmental Earth Sciences. 71, 10, p. 4615-4624 10 p.

Research output: Contribution to journalArticle

landslide
tunnel
damage
earthquake
geomorphological feature
2 Citations
Debris
Earthquakes
Dams
Global positioning system
Computer simulation

Introduction: Earthquake-induced landslides

Wang, F., Konagai, K., Marui, H., Mahdavifar, M. & Scrascia-Mugnozza, G. 2014 Jan 1 Landslide Science for a Safer Geoenvironment: Volume 3: Targeted Landslides. Springer International Publishing, p. 135-140 6 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

landslide
hazard
earthquake
methodology

Triggering mechanism of earthquake induced landslides

Kazmi, Z. A. & Konagai, K. 2014 Jan 1 Landslide Science for a Safer Geoenvironment: Volume 3: Targeted Landslides. Springer International Publishing, p. 219-224 6 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

earthquake
landslide
catastrophic event
forward modeling
slope failure
2013
1 Citations

Extracting earthquake induced Lagrangian ground displacements and their implication for source inversion analysis

Kazmi, Z. A., Konagai, K., Sekiguchi, H. & Fujita, T. 2013 May 1 In : Soil Dynamics and Earthquake Engineering. 48, p. 198-208 11 p.

Research output: Contribution to journalArticle

earthquake
fault geometry
seismograph
ground motion
rupture
5 Citations

Maps of soil subsidence for Tokyo bay shore areas liquefied in the March 11th, 2011 off the Pacific Coast of Tohoku Earthquake

Konagai, K., Kiyota, T., Suyama, S., Asakura, T., Shibuya, K. & Eto, C. 2013 Oct 1 In : Soil Dynamics and Earthquake Engineering. 53, p. 240-253 14 p.

Research output: Contribution to journalArticle

earthquake
subsidence
soil
liquefaction
coast

Surface fault rupture through a ridge in an aftershock of the 2011 tohoku earthquake

Oettle, N. K., Bray, J. D., Konagai, K. & Kelson, K. 2013 Nov 18 Geotechnical Special Publication. 231 GSP ed. p. 1581-1584 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Earthquakes
Sedimentary rocks
Numerical analysis
Engineers
2012
9 Citations

A hypothesis of the Senoumi submarine megaslide in Suruga Bay in Japan-based on the undrained dynamic-loading ring shear tests and computer simulation

Sassa, K., He, B., Miyagi, T., Strasser, M., Konagai, K., Ostric, M., Setiawan, H., Takara, K., Nagai, O., Yamashiki, Y. & Tutumi, S. 2012 Dec 1 In : Landslides. 9, 4, p. 439-455 17 p.

Research output: Contribution to journalArticle

Landslides
Ashes
Earthquakes
Silt
Sand
1 Citations

Multi-scale decomposition of Co-seismic deformation from high resolution DEMs: A case study of the 2004 mid-niigata earthquake

Zhao, Y., Konagai, K. & Fujita, F. 2012 Aug 1 In : Acta Geologica Sinica. 86, 4, p. 1013-1021 9 p.

Research output: Contribution to journalArticle

digital elevation model
tectonics
earthquake
landslide
regional geology
7 Citations

Partial breaching of Hattian Bala Landslide Dam formed in the 8th October 2005 Kashmir Earthquake, Pakistan

Konagai, K. & Sattar, A. 2012 Mar 1 In : Landslides. 9, 1, p. 1-11 11 p.

Research output: Contribution to journalArticle

Debris
Earthquakes
Landslides
Dams
Rivers

Shear plane found in the interior of soil/rock near a tunnel damaged in 2004 Niigata-Ken Chuetsu Earthquake

Zhao, Y., Tomiyasu, Y. & Konagai, K. 2012 Jan 1 Advanced Materials Research. Vol. 368-373, p. 1621-1625 5 p. (Advanced Materials Research; vol. 368-373)

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Landslides
Tunnels
Earthquakes
Synthetic aperture radar
Disasters
2011
4 Citations

Breaching failure of a huge landslide dam formed by the 2005 Kashmir earthquake

Kiyota, T., Sattar, A., Konagai, K., Kazmi, Z. A., Okuno, D. & Ikeda, T. 2011 Dec 1 In : Soils and Foundations. 51, 6, p. 1179-1190 12 p.

Research output: Contribution to journalArticle

Landslides
Dams
Rain
Earthquakes
Water
1 Citations
Earthquakes
Soil
Rehabilitation
Remote Sensing Technology
History
8 Citations

Measurement of debris mass changes and assessment of the dam-break flood potential of earthquake-triggered Hattian landslide dam

Sattar, A., Konagai, K., Kiyota, T., Ikeda, T. & Johansson, J. 2011 Jun 1 In : Landslides. 8, 2, p. 171-182 12 p.

Research output: Contribution to journalArticle

Dams
Landslides
Earthquakes
Rivers
Alarm systems
2010
5 Citations

Reconnaissance investigation on the damage of the 2009 L'Aquila, Central Italy earthquake

Kawashima, K., Aydan, Ö., Aoki, T., Kishimoto, I., Konagai, K., Matsui, T., Sakuta, J., Takahashi, N., Teodori, S. P. & Yashima, A. 2010 Jul 1 In : Journal of Earthquake Engineering. 14, 6, p. 817-841 25 p.

Research output: Contribution to journalArticle

Earthquakes
2009
1 Citations

Huge landslides caused by massive earthquakes and long-lasting geotechnical risks

Kazuo, K., Jorgen, J., Shigeki, T. & Takaaki, I. 2009 Jan 1 Landslides - Disaster Risk Reduction. Springer Science and Business Media, LLC, p. 159-176 18 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

earthquake
history
Kashmir earthquake 2005
Sichuan earthquake 2008
landform
8 Citations

Kizawa tunnel cracked on 23 October 2004 Mid-Niigata earthquake: An example of earthquake-induced damage to tunnels in active-folding zones

Konagai, K., Takatsu, S., Kanai, T., Fujita, T., Ikeda, T. & Johansson, J. 2009 Feb 1 In : Soil Dynamics and Earthquake Engineering. 29, 2, p. 394-403 10 p.

Research output: Contribution to journalArticle

tunnel
earthquake
soil
rock
cross section
7 Citations

Tectonic deformation buildup in folded mountain terrains in the October 23, 2004, Mid-Niigata earthquake

Konagai, K., Fujita, T., Ikeda, T. & Takatsu, S. 2009 Feb 1 In : Soil Dynamics and Earthquake Engineering. 29, 2, p. 261-267 7 p.

Research output: Contribution to journalArticle

earthquake
tectonics
thrust fault
aftershock
aerial photograph
2008

Geological and microtremor survey, damage distribution, and reconstruction of Muzaffarabad and surroundings after the 2005 Kashmir earthquake

Konagai, K., Johansson, J., Numata, A., Takatsu, S. & Ikeda, T. 2008 Dec 1 Geotechnical Special Publication. 181 ed.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Deposits
Gravel
Earthquakes
Geomorphology
International cooperation