Conference Papers
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Item Geohazard Investigation and Management: An Introduction(Springer Science and Business Media Deutschland GmbH, 2022) Adhikari, B.R.; Menon, V.; Kolathayar, S.The understanding of the systemic risk posed by multi-hazard is becoming a new area of research and adopted by the different global and national frameworks. This chapter summarizes the contents of the book titled geohazard mitigations, which contains thirty-eight chapters. These chapters are divided into three sections namely: multi-hazard assessment, landslide hazard assessment and mitigation, and geotechnical engineering. This chapter also includes basic definitions and introduction to geohazard investigation and management. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.Item Review of Experimental Studies on Rainfall-Induced Landslide Using the Laboratory Flume Technique(Springer Science and Business Media Deutschland GmbH, 2024) Menon, V.; Kolathayar, S.Rainfall-induced landslides are one of the most influential disasters in the monsoon season for rainfall-rich parts of India, primarily southern and northeastern. Landslides are geotechnical phenomena that can be studied by conducting field experiments, laboratory experiments, and numerical modeling. Various methods can be adopted to study landslides, and the landslide flume seems to be one of the most widely used techniques for laboratory simulation of the landslides. The scaled models created in a flume can represent the real-world situations so far, which will be reviewed here. The essential aspects of this review include the practicality of the flume experiments from the previous findings, how they can be related to the real-world scenarios, the difference between field instrumentations and laboratory instrumentations, discrepancies that can occur due to the scaled effect of laboratory simulation, and recommended techniques for the future development of laboratory simulated landslides with tilting type flume incorporated with a rainfall simulator. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.Item Numerical Analysis of Geocell Retaining Wall for Slope Stabilization of Netravathi River Bank(Springer Science and Business Media Deutschland GmbH, 2025) Anjana, S.; Menon, V.; Kolathayar, S.Stability of slopes is a major concern when it comes to construction near hills, excavations, embankments and river banks. Geosynthetics and geotextiles have proven to be extremely efficient in slope stabilization and landslide protection, among which the use of geocells has been drastically increasing. It is made up of geogrid like materials that give it sufficient tensile strength. This paper focuses on the use of geocells to construct a retaining wall to support an existing backfill. The study area is located at a Netravathi River bank which belongs to a temple in South Mangalore city. The aim of the work is to prevent flooding of the temple during heavy rainfall and the erosion of banks. Numerical analyses have been carried out by Limit Equilibrium Method (LEM) using GEO5 software and Finite Element Method (FEM) using PLAXIS 2D software. The results of displacements and factor of safeties have been compared for both methods to determine if the proposed structure is stable. Geocell retaining wall has been developed in PLAXIS 2D using a soil geocell equivalent composite model due to the difficulties of modelling its actual honeycomb like structure. The structure gives sufficient safety for static as well as pseudo static condition for different water levels hence preventing further erosion of existing soil. The design provided for the present work gives a factor of safety of 1.69 in LEM analysis and 1.90 in FEM analysis for the rapid drawdown condition in a psuedo dynamic analysis. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.