Keizō Ugai

3.0k total citations
90 papers, 2.3k citations indexed

About

Keizō Ugai is a scholar working on Civil and Structural Engineering, Safety, Risk, Reliability and Quality and Management, Monitoring, Policy and Law. According to data from OpenAlex, Keizō Ugai has authored 90 papers receiving a total of 2.3k indexed citations (citations by other indexed papers that have themselves been cited), including 74 papers in Civil and Structural Engineering, 41 papers in Safety, Risk, Reliability and Quality and 33 papers in Management, Monitoring, Policy and Law. Recurrent topics in Keizō Ugai's work include Geotechnical Engineering and Soil Stabilization (53 papers), Geotechnical Engineering and Analysis (41 papers) and Landslides and related hazards (33 papers). Keizō Ugai is often cited by papers focused on Geotechnical Engineering and Soil Stabilization (53 papers), Geotechnical Engineering and Analysis (41 papers) and Landslides and related hazards (33 papers). Keizō Ugai collaborates with scholars based in Japan, China and Egypt. Keizō Ugai's co-authors include Fei Cai, Aly Ahmed, Akihiko Wakai, Takeshi KAMEI, Dov Leshchinsky, Toshiyuki Hagiwara, Yuzhen Yu, Guoxin Wang, Ling-Yu Xu and Atsuo Onoue and has published in prestigious journals such as Blood, Construction and Building Materials and Géotechnique.

In The Last Decade

Keizō Ugai

78 papers receiving 2.1k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Keizō Ugai Japan	25	2.0k	1.2k	837	168	134	90	2.3k
Hoe I. Ling United States	35	3.2k 1.6×	1.1k 0.9×	465 0.6×	135 0.8×	188 1.4×	95	3.3k
Meghdad Payan Iran	34	2.7k 1.3×	892 0.7×	269 0.3×	233 1.4×	138 1.0×	113	2.9k
A. S. Balasubramaniam Thailand	32	2.8k 1.4×	863 0.7×	275 0.3×	89 0.5×	185 1.4×	95	3.1k
Junichi Koseki Japan	30	2.4k 1.2×	388 0.3×	373 0.4×	109 0.6×	200 1.5×	164	2.6k
Minna Karstunen Sweden	23	2.7k 1.4×	623 0.5×	627 0.7×	34 0.2×	227 1.7×	62	2.9k
Sangseom Jeong South Korea	31	2.6k 1.3×	1.2k 1.0×	912 1.1×	53 0.3×	277 2.1×	156	3.1k
Yongli Xie China	24	1.2k 0.6×	716 0.6×	357 0.4×	186 1.1×	479 3.6×	90	1.7k
Louis Ge Taiwan	26	1.4k 0.7×	372 0.3×	243 0.3×	130 0.8×	150 1.1×	93	1.7k
Abdallah I. Husein Malkawi Jordan	15	1.1k 0.5×	462 0.4×	425 0.5×	73 0.4×	81 0.6×	52	1.3k
Reza Jamshidi Chenari Iran	32	3.1k 1.5×	1.7k 1.4×	275 0.3×	236 1.4×	96 0.7×	176	3.3k

Countries citing papers authored by Keizō Ugai

Since Specialization

Citations

This map shows the geographic impact of Keizō Ugai's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Keizō Ugai with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Keizō Ugai more than expected).

Fields of papers citing papers by Keizō Ugai

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Keizō Ugai. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Keizō Ugai. The network helps show where Keizō Ugai may publish in the future.

Co-authorship network of co-authors of Keizō Ugai

This figure shows the co-authorship network connecting the top 25 collaborators of Keizō Ugai. A scholar is included among the top collaborators of Keizō Ugai based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Keizō Ugai. Keizō Ugai is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Ugai, Keizō. (2026). Three-dimensional slope stability analysis by slice methods. Medical Entomology and Zoology. 1369–1374.

Cai, Fei, et al.. (2015). Enhanced mobility of polydisperse granular flows in a small flume. Geoenvironmental Disasters. 2(1). 10 indexed citations

Issa, Usama Hamed, Aly Ahmed, & Keizō Ugai. (2013). A Decision Support System for Ground Improvement Projects Using Gypsum Waste Case Study: Embankments Construction in Japan. Civil and environmental research. 3(13). 74–83. 11 indexed citations

KAMEI, Takeshi, Aly Ahmed, & Keizō Ugai. (2013). Durability of soft clay soil stabilized with recycled Bassanite and furnace cement mixtures. SOILS AND FOUNDATIONS. 53(1). 155–165. 91 indexed citations

Cai, Fei, et al.. (2013). Numerical Simulation of Granular Flows in a Large Flume Using Discontinuous Deformation Analysis. Rock Mechanics and Rock Engineering. 47(6). 2299–2306. 4 indexed citations

Fukuoka, Hidenori, Daisuke Higaki, & Keizō Ugai. (2012). Landslides induced by the 11 March 2011 Tohoku Earthquake, Japan. EGU General Assembly Conference Abstracts. 14337. 1 indexed citations

Ahmed, Aly, Keizō Ugai, & Takeshi KAMEI. (2012). Assessment of Recycled Gypsum for Organic Soft Clay Soil Improvement. GeoCongress 2012. 1026–1035. 9 indexed citations

Ugai, Keizō, et al.. (2011). Fundamental study on mechanism of rock avalanche. Journal of the Japan Landslide Society. 48(1). 12–22. 4 indexed citations

Ugai, Keizō, et al.. (2011). Small-Scale Flume Test under Dynamic Condition for Rock Avalanches. 165–172. 3 indexed citations

10.

Ahmed, Aly, Keizō Ugai, & Takeshi KAMEI. (2011). Laboratory and Field Evaluations of Recycled Gypsum as a Stabilizer Agent in Embankment Construction. SOILS AND FOUNDATIONS. 51(6). 975–990. 49 indexed citations

11.

Ahmed, Aly, Keizō Ugai, & Takeshi KAMEI. (2011). Environmental Evaluation for Clayey Soil Stabilized with Gypsum Waste Plasterboard in Japan. 9–17. 14 indexed citations

12.

KAMEI, Takeshi, et al.. (2010). Solidification technology for fluorine, hexavalent chromium and boron in stabilized soil containing bassanite, coal ash and portland blast-furnace (B) cement. Japanese Geotechnical Journal. 5(3). 449–461. 2 indexed citations

13.

Nakamura, Atsushi, et al.. (2008). Application of FEM analysis to braced excavation. Tsinghua Science & Technology. 13(S1). 40–45.

14.

Wakai, Akihiko, et al.. (2007). Finite element simulation for collapse of dip slope during earthquake induced by strain-softening behavior of bedding plane. Journal of the Japan Landslide Society. 44(3). 145–155. 5 indexed citations

15.

Ugai, Keizō, et al.. (2006). FE analyses of reinforced slopes using the shear strength reduction technique.. Blood. 116(6). 1361–1364. 1 indexed citations

16.

Wakai, Akihiko, et al.. (2006). NUMERICAL ANALYSIS FOR SEISMIC EVALUATION OF RETAINING WALLS CONSISTING OF CONCRETE PANELS AND BACKFILL REINFORCED WITH GEOGRIDS. Doboku Gakkai Ronbunshuu C. 62(1). 45–56. 1 indexed citations

17.

Wakai, Akihiko, Keizō Ugai, & Shigeru Tani. (2005). . Journal of Applied Mechanics. 8. 663–672. 2 indexed citations

18.

Cai, Fei & Keizō Ugai. (2004). Numerical Analysis of Rainfall Effects on Slope Stability. International Journal of Geomechanics. 4(2). 69–78. 246 indexed citations

19.

Ugai, Keizō, et al.. (1985). Considerations of side water forces in the slice method.. 33(4). 39–42. 1 indexed citations

20.

Ugai, Keizō. (1984). Dynamic Analysis of Tubular Structures Buried near the Ground Surface. SOILS AND FOUNDATIONS. 24(4). 205–210. 1 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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