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Alim, Mosharof Al
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Earth & Planetary Sciences Education Environmental Science

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Journal : Geosfera Indonesia

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Experimental Investigation of Wrap-Faced Reinforced Soil Embankments on Soft Clay: A Sustainable Solution for Infrastructure Development in Bangladesh Hore, Shoma; Alim, Mosharof Al; Hore, Ripon
Geosfera Indonesia Vol. 10 No. 2 (2025): GEOSFERA INDONESIA
Publisher : Department of Geography Education, University of Jember, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/geosi.v10i2.53689

Abstract

Wrap-faced reinforced soil retaining walls are a widely accessible solution globally, especially in areas where land use is a concern. The wrap-faced layer requires less space on both sides of the wall, making it a more economical and efficient option, and it is less vulnerable to dynamic loading. Incorporating dynamic loading in the design phase is crucial; however, current embankment projects in Bangladesh do not account for this aspect. Traditionally, sand embankments are constructed atop soft clay layers in road and railway embankment projects in Bangladesh. This research proposes the use of a wrap-faced embankment system on soft clay, piloted based on shake table test results conducted at the Bangladesh University of Engineering and Technology. Various governmental agencies, including the Roads and Highways Department, Local Government Engineering Department, and Bangladesh Railway, are involved in the construction of embankments, which typically require large land areas, especially for embankments with slopes of 1:2 or 1:3. This significant land requirement often becomes a limitation. In contrast, the wrap-faced embankment system offers a viable solution to the land scarcity issue, as it minimizes horizontal space usage and reduces construction costs compared to traditional embankments. This research details the proposed construction process and the modeling of the wrap-faced embankment system, offering insights into its potential for improving embankment design and land utilization in Bangladesh. The research evaluated the dynamic behavior of wrap-faced embankments on soft clay through PLAXIS 3D numerical modeling and shake table experimentation.   The results indicated a consistent decrease in displacement with increased surcharge load.   This confirms the potential of wrap-faced systems to enhance embankment stability during seismic events in Bangladesh.
Forecasting Rainfall and Temperature Trends in Bangladesh Based on Historical Data Analysis Hore, Shoma; Kamrul, Md Kamruzzaman; Alim, Mosharof Al; Hore, Ripon
Geosfera Indonesia Vol. 10 No. 3 (2025): GEOSFERA INDONESIA
Publisher : Department of Geography Education, University of Jember, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/geosi.v10i3.53690

Abstract

This study examined temperature and precipitation trends and spatial variations over a 40-year period at 34 meteorological stations in Bangladesh. Climate variability was assessed using a variety of statistical techniques, such as geographic information systems (GIS), inverse distance weighting (IDW) interpolation, linear regression, and coefficient of variation. The temperature and precipitation data were simulated using an autoregressive integrated moving average (ARIMA) model. With an average temperature increase of 0.20 °C every ten years, the results showed a significant warming trend. Northern, central, and southern regions saw the largest increases in minimum temperatures (from 0.80 to 2.4 °C), while southern and southeastern regions saw the largest increases in maximum temperatures (1.20 to 2.48 °C). Although pre-monsoon and post-monsoon rainfall showed declines of 0.75 mm and 0.55 mm per year, respectively, with significant variability in these seasons (44.84% and 85.25%, respectively), annual precipitation showed an upward trend (+7.13 mm per year). Projections for 2011–2020 suggest a temperature rise of 0.018 °C annually, potentially resulting in a 1.0 °C increase compared to 1971. Minimum temperatures are expected to rise more sharply (0.20 °C) than maximum temperatures (0.16 °C). Annual precipitation is predicted to decrease by 153 mm, with drying conditions anticipated in northwestern, western, and southwestern regions during pre- and post-monsoon periods.
Co-Authors Hore, Ripon Hore, Shoma Kamrul, Md Kamruzzaman