Conference Papers

Permanent URI for this collectionhttps://idr.nitk.ac.in/handle/123456789/28506

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Author: search.filters.author.Kumar Reddy, S.K.

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    An Enhanced IoT and LoRa-Based Communication System for Underground Mines
    (Springer Science and Business Media Deutschland GmbH, 2023) Kumar Reddy, S.K.; Naik, A.S.
    The mining industry is well known for valuable minerals all over the world and the way to get minerals is by mining below the surface. Real-time monitoring of environmental parameters from underground mines is a very complex task to ensure safety. Accidents in the underground area are due to hazardous toxic gas spread beyond the threshold limit value at excavations. These mine gases are a threat to both mine workers’ health and the mine environment and are also very hard for miners to detect. Automation in the mining industry reduces hazardous accidents while improving efficiency and productivity. Adopting the Internet of Things (IoT) with Long Range (LoRa) wireless communication technology to build a robust long-range wireless communication system to monitor environmental parameters and hazardous events. To ensure a safe mine environment for mineworkers at the mine site, Artificial Intelligence techniques are an add-on to automation systems to build predictive modeling for an intelligent early warning alert system. However, current solutions are limited to monitoring, low computing power and processing capability, battery lifetime, suitable at the laboratory level, or reports events in a few cases. The proposed system is comprised of the IoT-based sensor modules, communication protocols, Long-Range (LoRa), and machine learning technologies to establish safe, reliable communication from the underground mine to the surface area. A reliable, robust, and cost-effective communication system should be required that monitors environmental parameters and predicts reports of unusual events by adopting new technology. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
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    Effect of Surcharge on Analysis of Anchored Sheet Piles Embedded in Cohesionless Soil
    (Springer Science and Business Media Deutschland GmbH, 2025) Dinesh, G.; Nayak, S.; Kumar Reddy, S.K.
    An anchored sheet pile wall is a flexible retaining structure stabilized by anchors placed at a specific depth to resist external forces. The design of these walls is influenced by two key factors: the embedment depth into the foundation soil and the maximum bending moment experienced by the wall. This study presents design charts for anchored sheet piles in cohesionless soil subjected to surcharge loads. Both the conventional free earth support method and finite element analysis using PLAXIS 2D were employed. Multiple scenarios were simulated in PLAXIS 2D using the Mohr–Coulomb model, with an internal friction angle of 34° for the soil and a combination of fixed base boundary conditions. The study also examined different water table positions at the surface, middle, dredge level, and deep below the surface and generated design charts for embedment depth (D) and maximum bending moment (Mmax). Results revealed that the conventional free earth support method tends to overestimate the maximum bending moment. In contrast, the finite element analysis, with detailed mesh refinement and boundary conditions, provided a better assessment of soil–structure interaction, yielding more reliable outcomes. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.