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Welcome to the SURE3 Geotechnical Engineering Research Group

Our research group aims to develop countermeasures against global climate change threats and accompanying geotechnical engineering hazards, through multidisciplinary convergence for the sustainability and eco-resilience of our Civilization.

In particular, we focus on SURE3 geotechnical engineering, where 
SURE3 stands for Sustainability
urban UtilizationResilience

EnvironmentalExtreme, and Emerging geotechnical engineering

Please join us for various research activities including Bio-soil studies, Soil preservation and erosion control, Hydro-geotechnology,
Anti-desertification, Soil treatment and ground improvement, Underground construction, and other emerging geotechnical engineering fields.

Introductory video (in Korean)
Academic impacts (Nov. 2022)
Chang cites.jpg

Research News


Chanjo started his master's program (2024~2025), and Dongcheon began working as an undergraduate intern at SURE3 GEO.


Dr. Chang traveled to Vancouver, Canada for the ASCE Geo-Congress 2024. Dr. Chang presented 2 oral and 1 post presentations by himself. He also spent valuable time working with our overseas partners during the conference.


[New Article] “Machine learning-based analysis and prediction model on the strengthening mechanism of biopolymer-based soil treatment” published in Geomechanics and Engineering (


[New Article] “Sustainable soil treatment: Investigating the efficacy of carrageenan biopolymer on the geotechnical properties of soil” published in Construction and Building Materials (


[New Article] “Biological perspectives in geotechnics: Application and monitoring” published in Journal of Rock Mechanics and Geotechnical Engineering (


[Congratulations] Suhyuk has been awarded the “Park Changho Scholarship” at the 2023 KSCE Convention. Congratulations Suhyuk.


SURE3 members (Dr. Chang, Moonkyung, Suhyuk, Gi-Yun, Hwijae, Junhyeok, Hyungbin, and Jinwoo) have travelled to Yeosu, Korea for the 2023 KSCE Convention (October 18-20). SURE3 presented 4 oral and 1 poster presentations.


[New Article] “Biological perspectives in geotechnics: Theoretical developments” published in Reviews in Environmental Science and Bio/Technology (


[New Article] “Strengthening and permeability control of granular soil via trivalent chromium-crosslinked xanthan gum biopolymer treatment” published in Transportation Geotechnics (


Dr. Chang started his sabbatical leave (Sep 1 to End of Feb. 2024) at UNSW Australia. Chanjo has joined SURE3 GEO as an intern.


[Congratulations] Dr. Sojeong Lee's research proposal the National Research Foundation (NRF) of Korea for her post-doctoral research has been successfully granted. Congratulations Dr. Lee for your well-deserved award. 


[New Article] "Advanced biopolymer-based soil strengthening binder with Cr3+-Xanthan gum crosslinking for wet strength and durability enhancement" published in Journal of Materials in Civil Engineering (


[New Article] "Xanthan Biopolymer-Based Soil Treatment Effect on Kaolinite Clay Fabric and Structure Using XRD Analysis" published in Scientific Reports (


[New Article] "Xanthan gum biopolymer-based soil treatment as a construction material to mitigate internal erosion of earthen embankment: A field-scale" published in Construction and Building Materials (


[New Article] "Effect of microbial biopolymers on the sedimentation behavior of kaolinite" published in Geomechanics and Engineering (


[New Article] "Water retention properties of xanthan-gum-biopolymer-treated soils" published in Environmental Geotechnics 


[New Article] "Alkaline induced-cation crosslinking biopolymer soil treatment and field implementation for slope surface protection" published in Geomechanics and Engineering (


SURE3 members (Dr. Chang, Moonkyung, Suhyuk, Gi-Yun, and Yongeun) have travelled to Los Angeles, USA for the ASCE Geo-Congress 2023 (March 26-29). SURE3 presented 2 oral and 2 poster presentations, and actively communicated with our current and new collaborators.


[Congratulations] Prof. Ilhan Chang received the President Award from the Korean Geotechnical Society (KGS) for his outstanding contribution to KGS.


SURE3 members (Dr. Chang, Moonkyung, Suhyuk, Gi-Yun, Hyungbin, Hwijae, and Jun-Hyeok) travelled to Yeosu for the Korean Geotechnical Society (KGS) 2023 Spring Conference (March 22-March 23)


[New Article] "The effects of particle size distribution and moisture variation on mechanical strength of biopolymer-treated soil" published in Polymers (


[Congratulations] Prof. Ilhan Chang received the 2022 Excellence in Education (Teaching) award from the President of Ajou University (Dr. Kee-Choo Choi) for his outstanding contribution to University education.


[Ajou University Commencement] Congratulations to Dr. Ki-Rim Kim, MSs Mintae Kim and Haejin Lee, BSs Hwijae Lee, Junhyuk Yeom and Hyungbin Park for their academic achievements. Hwijae, Jun-Hyeok and Hyungbin are continuing their MS studies with SURE3 GEO. Cheers to all~! 


[New Article] "Consolidation and swelling behavior of kaolinite clay containing xanthan gum biopolymer" published in Acta Geotechnica (


SURE3 Invited Seminars
SURE3 Homecoming / Happy hour
Call for papers:
Submit your Research Outcomes to
Geomechanics and Engineering (GAE; IF = 3.201) journal

SURE3 GEO Events

Research Seminars
Journal Club
Research Updates
Research Life in
How to Join us

Thursday (09:30~10:00 KST)

Ajou University (on site)

Thursday (10:00 - 11:00 KST)
Ajou University (on site)

Tuesday (09:30~10:00 KST)
Zoom (online)

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