Kalani_Rajamanthri

Ms. Kalani Rajamanthri

Connections 3
Publications 2

Professional Information

  • Geotechnical Engineer

Student

  • Shallow Foundations Shaft Foundations Pile Foundations Geosynthetics for Containment Geosynthetics for Flow Geosynthetics for Reinforcement Earthquake Reconnaissance
    Seismic Slope Stability Liquefaction Engineering Soil Structure Interaction Site Response Analysis Stabilization Prefabricated Vertical Drains Seepage Laboratory Testing Landslides Finite Element / Finite Difference Reconnaissance of Natural Disasters Residual Soils Cone Penetration Testing (CPT) Standard Penetration Testing (SPT) Borehole Logging Slope Stabilization Slope Stability Analysis Settlements Shear Strength of Underground Materials Soil Behavior Modeling Pavement Road Embankments

Educational Background

  • PhD or Equivalent
    • Doctor of Philosophy in Civil, Environmental, and Sustainable Engineering - Arizona State University : 14/08/2023 - Present
  • MSc or Equivalent
    • Master of Engineering in Civil Engineering - Kasetsart University : 10/06/2019 - 30/06/2021
  • BSc or Equivalent
    • Bachelor of Science in Engineering - Asian Institute of Technology : 11/08/2014 - 18/05/2018

Honors & Awards

  • Witczak Fellowship Arizona State University, 2025
  • Second Place in the Graduate Student Presentation Competition National Center for Infrastructure Transformation, 2024

Work Experience

  • Metallurgical Corporation of China | Sri Lanka : ( 13/09/2021 - 17/07/2023 )
    • Geotechnical Engineer

    • ▪ Designed excavation support systems and retaining wall structures to ensure stability and safety of cut slopes.
      ▪ conducted slope stability analysis for critical cut slope sections using geotechnical modeling tools.
      ▪ Monitored and evaluated embankment settlements through field instrumentation, and performed numerical predictions to ensure compliance with design performance criteria.
  • National Building and Research Organization (Geotechnical Engineering Division) | Sri Lanka : ( 11/06/2018 - 12/07/2019 )
    • Engineer (Academic and Research – 1)

    • ▪ Executed geotechnical investigations involving borehole logging, soil sampling, and performing in-situ field testing, ensuring reliable subsurface data collection.
      ▪ Prepared comprehensive Geotechnical investigation reports summarizing field and laboratory finding for design applications.
      ▪ Conducted index and advanced laboratory testing, including Atterberg limits, grain-size distribution, consolidation, and direct shear testing.
      ▪ Involved in development and rehabilitation of municipal solid waste, including planning geotechnical investigation, stability assessment, and design for closure and rehabilitation plan.
      ▪ Partnered with the Asian Disaster Preparedness Center (ADPC) and World bank on research introducing soil-bio engineering techniques for mitigating rain-induced landslides in Sri Lanka.
  • Road Development Authority | Sri Lanka : ( 15/05/2017 - 18/08/2017 )
    • Civil Engineering Intern

    • ▪ Gained hands-on experience in bored pile construction, soft ground treatment, and ground improvement techniques, including the design and execution of Gravel Compaction Piles (GCPs).
  • Sanken Construction (Pvt) Ltd. | Sri Lanka : ( 16/05/2016 - 19/08/2016 )
    • Civil Engineering Intern

    • ▪ Involved in the preparation of rebar schedules, and the planning and supervision of formwork, concreting, and finishing operations in structural construction projects.

Languages

Language Read Level Written Level Spoken Level
English High High High

Latest Publications

View all
  • A Non-Linear Suction-Dependent Model for Predicting Unsaturated Shear Strength
    Journal Article published 2025 Dec 23 in Geosciences volume 16 issue 1 on page 12
    Authors: Kalani Rajamanthri, Claudia E. Zapata
    https://doi.org/10.3390/geosciences16010012
  • Effects of Chrysopogon zizanioides root biomass and plant age on hydro-mechanical behavior of root-permeated soils
    Journal Article published 2021 May 11 in International Journal of Geosynthetics and Ground Engineering volume 7 issue 2
    Authors: Kalani Rajamanthri, Apiniti Jotisankasa, Surachet Aramrak
    https://doi.org/10.1007/s40891-021-00271-0


Contact Information

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Publications
A Non-Linear Suction-Dependent Model for Predicting Unsaturated Shear Strength
Journal Article published 2025 Dec 23 in Geosciences volume 16 issue 1 on page 12
Authors: Kalani Rajamanthri, Claudia E. Zapata
https://doi.org/10.3390/geosciences16010012
Effects of Chrysopogon zizanioides root biomass and plant age on hydro-mechanical behavior of root-permeated soils
Journal Article published 2021 May 11 in International Journal of Geosynthetics and Ground Engineering volume 7 issue 2
Authors: Kalani Rajamanthri, Apiniti Jotisankasa, Surachet Aramrak
https://doi.org/10.1007/s40891-021-00271-0
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