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All Journal Journal of Civil Engineering Journal of Environmental and Science Education
Mridha, Masum
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Observation on Soil Liquefaction Analysis at Uttara Depot of Dhaka MRT Line 6 Sayeem, Arafat Chowdhury; Islam, Shafiqul; Musfikuzzaman, Md.; Mridha, Masum
Journal of Civil Engineering Vol 40, No 2 (2025)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v40i2.22594

Abstract

The Dhaka Metro Rail Line 6, also known as DMRT Line 6, is the first metro rail megaproject in Bangladesh which is undertaken by the government owned autonomous institution named Dhaka Mass Transit Company Limited (DMTCL). The Dhaka MRT Line-6 project consists of eight packages in total from CP (Contract Package)-01 to CP-08. The CP-01 package covers the construction of a depot at Diabari in Uttara, Dhaka. This package includes the soil improvement and land development for the construction of embankment at depot area. As CP-01 is a land development project, this project is sensitive to various geotechnical challenges, so it is obvious to identify and mitigate the geotechnical concerns associated with the project. This research analyses the potential of soil liquefaction which is a prime geotechnical challenge for this project at different boreholes of the depot. The required data is taken from the soil test report of three major boreholes (NDP-02, NDP-08 and NDP-11) at depot area and the analysis is then done according to the Seed and Idriss formula. Finally, the Factor of Safety (FL) at different depths of the soil is represented graphically to understand the overall potentiality of liquefaction with subsoil condition of the depot area.
A Comprehensive Analysis of Ambient Air Quality at Pitalganj Depot of Dhaka Metro Rail Line 1 Project Sayeem, Arafat Chowdhury; Islam, Md. Anwarul; Mridha, Masum
Journal of Environmental and Science Education Vol. 4 No. 2 (2024): Journal of Environmental and Science Education : September 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jese.v5i2.16623

Abstract

The Dhaka Metro Rail Line 1, also known as DMRT Line 1, is the first subterranean metro rail project in Bangladesh, and is currently undergoing depot construction work under contract package-1 (CP 01). The construction of depot work is mainly susceptible to ambient air quality due to the land development and soil improvement activities. The long-term construction period can significantly impact the surrounding air quality of the project area and so it is crucial to identify air pollution concerns and analyze the impact of air quality on the environment. This study evaluated ambient air quality in four distinct zones of the depot area from June 2023 to September 2024. There were several pollutants measured in the ambient air including Particulate Matters (PM10 and PM2.5), Ozone (O3), Lead (Pb), Sulfur Dioxide (SO2), Nitrogen Dioxide (NO2), Carbon Monoxide (CO). The air quality monitoring machine Oceanus AQM-09 and Haz-Scanner (HIM, 6000) were used for 8 hours on the site. The power-law equation of Schroeder and Jugloff, 2012 was applied to provide 24-hour and 8-hour averages for the air quality parameters. It is observed that in pre-monsoon period of 2024, there is quite high intensity of particulate matter (PM2.5) present in the air, whereas other air pollutants values were found in all four zones are moderate in the air samples as prescribed by Air Pollution Control Rules, 2022.
Co-Authors Islam, Md. Anwarul Musfikuzzaman, Md. Sayeem, Arafat Chowdhury Sayeem, Arafat Chowdhury Shafiqul Islam