iosr-JMCE   Volume-22 ~ Issue-2 ~ Mar. – Apr. 2025

Abstract: The rapid urbanization process in Bangladesh possesses enormous challenges to meet the growing demand for safe and sustainable mobility in the major cities, Dhaka megacity in particular. Dhaka, the capital city of Bangladesh is one of the fastest growing megacities has approximately 20 million population which generates nearly 40 million trips daily. The greatest challenge thus for transportation professionals is to develop a system for urban transport that meets the basic mobility need for all urban dwellers at desirable safety and avoiding the unacceptable level of congestion and.....

Keywords: PTV Vissim; Traffic flow; Traffic Congestion; Road Safety; Traffic Management; Intersection; Microsimulation and Road Infrastructure

[1]. TAHMINA RAHMAN CHOWDHURY (2019) Investigation Of Road Intersection Operation Using Micro-Simulation Technique, Bangladesh University Of Engineering And Technology, Bangladesh[2]. Shanjeeda Akter (2019) Rationale For Signal Free Urban Arterial Operation With Grade Separated U-Loops In Dhaka City Bangladesh University Of Engineering And Technology, Bangladesh.
[3]. Al-Ahmadi H.M. (1985) Evaluating Policy Changes Using A Network Simulation Model, Thesis Dissertation, University Of Petroleum And Minerals, Saudi Arabia.
[4]. Al-Ofi K.A. (1994) The Effect Of Signal Coordination On Intersection Safety, Ph.D. Dissertation, King Fahd University Of Petroleum And Minerals, Saudi Arabia.
[5]. Algers, S., Bernauer, E., Boero, M., Breheret, L., Di Taranto, C., Dougherty, M., Fox, K., And Gabard, J. (1997) Review Of Micro-Simulation Models. Smartest Project Deliverable D3. Leeds.

Abstract: This study report on the Structural behavour of Model Sandcrete Blockwalls Under Uniaxial Compressive Load. Understanding the structural response of blockwalls under uniaxial compressive load is crucial for designing safe and efficient masonry structures. The structural response of blockwalls under uniaxial compressive load, namely the stress-deformation characteristics and failure process of sandcrete blockwalls, appears to be a substantial study gap, even though masonry constructions have been extensively covered in technical literature. A direct model.....

Keywords: Model, Blockwall, Compressive Load

[1] A Amalkar, M.S.; Renukadevi, M.V.; Jagadish, K.S.; Basutkar, S.M. Effect Of Slenderness And Eccentricity On The Strength Of Concrete Block Masonry: An Experimental Investigation. SN Appl. Sci. 2020, 2, 1046. [Google Scholar] [Crossref]
[2] Abrams, D. P (1997) “Response Of Unreinforced Masonry Building”, Journal Of Earthquake Engineering, Imperial College Press, Vol. 1, No 1, Pp. 257-273.
[3] British Standard Institution: BS2028, 1361 (1968), “Specification For Precast Concrete Block “(London, BSI,)
[4] British Standard Institution BS 8110, (1985), “Structural Use Of Concrete” (London, BSI,).
[5] British Standard Institution (1975), “Methods Of Test For Stablilised Soil”. Doc. BSI 924 (London, BSI,)

Abstract: This study focuses on the observation of aerodynamic characteristics of a biconvex airfoil at high Mach number flow or supersonic flow. To understand the influence of supersonic flow on the aerodynamic characteristics of a biconvex airfoil numerical simulation was done using ANSYS Fluent. For the simulation purpose a two-dimensional, turbulent, steady flow is considered. The simulation was done with appropriate flow domain and boundary conditions. A C-type flow domain is considered. SST k-ω viscous model is used to predict the flow turbulence. The simulation....

Keywords: Biconvex Airfoil, Mach Number, Supersonic Flow, Aerodynamic Characteristics, CFD Simulation

[1] J. D. Anderson, Fundamentals Of Aerodynamics, Fifth Edition In Si Units. New York: Mcgraw-Hill Education, 2011.
[2] E. L. Houghton And P. W. Carpenter, Aerodynamics For Engineering Students, 5. Ed., Reprinted. Amsterdam: Elsevier, Butterworth-Heinemann, 2008.
[3] S. Askari, M. H. Shojaeefard, And K. Goudarzi, “Numerical And Analytical Solution Of Compressible Flow Over Double Wedge And Biconvex Airfoils,” Engineering Computations, Vol. 28, No. 4, Pp. 441–471, May 2011, Doi: 10.1108/02644401111131885.
[4] S. S. B. Bensiger And N. Prasanth, “Analysis Of Bi-Convex Airfoil Using Cfd Software At Supersonic And Hypersonic Speed,” Elixir Mech. Engg, Vol. 53, Pp. 11695–11698, 2012..

Abstract: The construction of ideological and political education (IPE) in curriculum has been explored since 2014 in China and has achieved significant results to date. The development direction of IPE in curriculum has evolved from the initial exploration and integration of ideological and political (IP) elements to the construction of a teaching system for IPE in courses. This study takes the course of Refrigeration Technology for Air Conditioning in the Building Environment and Energy Engineering (BEEE) major as an example, proposing a comprehensive practical teaching system.....

Keywords: Comprehensive practical teaching; Ideological and political education (IPE); Course cluster; Blended virtual and reality; Process based assessment

[1] XI Jinping Emphasized At The National Conference On IP Work In Higher Education Institutions: Integrating IP Work Throughout The Entire Process Of Education And Teaching To Create A New Landscape For The Development Of Higher Education In Our Country [N]. People's Daily., 2016.12.09（1）. [In Chinese]
[2] HAN Yuanyuan, YANG Wei. Research Hotspots And Development Trends Of IPE In University Courses (2016-2021) — A Bibliometric Statistical Analysis Based On Citespace [J]. Higher Education Forum, 2023,1,1-5,25. [In Chinese]
[3] LIU Peng, LI Xinyi. Policy Evolution In The Development Of IPE In Courses: Thematic Trends, Evolutionary Characteristics, And Future Prospects - An Nvivo Analysis Based On Policy Texts.. Journal Of Shijiazhuang University. 2023, 25 (5), 22-28. [In Chinese]
[4] WU Fangjun, CHEN Dong, HUANG Meiling. Teaching Research On Integrating IP Elements Into The Practical Components Of Civil Engineering Majors In Universities — A Case Study Of The Building Model Construction Course.. Modern Business Trade Industry, 2024, 14, 193-195. [In Chinese]
[5] WANG Junqi, LI Cuimin, ZHOU Bo, MENG Erlin, SUN Zhigao. Teaching Reform And Ideological Education Construction Of Professional Foreign Language.........

Abstract: In this project, the Effects of Salt Water on the Mechanical Properties of Concrete was determined. For Compressive strength test, total number of concrete cubes cast was seventy two, that is, thirty six cubes using salt water and thirty six cubes using fresh water. Similarly, total number of beams cast for flexural strength test was the same as compressive strength test. Also, total numbers of concrete cylindrical cubes cast for Split tensile strength were the same too. Three mix ratios used were (1:1.51:3.2), water cement ratio (0.47), (1:2.06:4), water cement ratio (0.58), and (1:3.3:5.3), water cement ratio (0.78) respectively. The concrete cubes, beams and cylinders.....

Keywords: Compressive Strength, Flexural Strength, Fresh water, Salt water, setting time, Split tensile Strength.

[1] Akinkurolere, O. O., Jiang, C And Shobola O. M. (2007). The Influence Of Salt Water On The Compressive Strength Of Concrete. Journal Of Engineering And Applied Sciences, 2: 412 - 415.
[2] Chatterji A. K. (2016): Effect Of Salt Water On The Flexural Strength Of Concrete. Journal Of Scientific Industrial Research, Vol. 18, 2000, Pp. 301-340 Encyclopaedia Britannica. Retrieved 17 July 2013.
[3] Gopal, M. (2010). Concrete In Seawater. Retrieved From. Http://Www. Theconstructor.Org/Concrete/Concrete-In-Seawater/843/. Https://Staff.Emu.Edu.Tr/Ozgureren/En/Documents/CIVL284/BRE%20Mix%20Design%20Example%202.Pdf
[4] Khan, M. I., And Ullah, I. (2019). Effects Of Salt Water On The Compressive Strength Of Concrete. Journal Of Engineering And Applied Sciences, 38: 123-129.
[5] Krishnam Raju P, Lakshmi V And Pravallika S. Bhanu (2014). An Investigation On Fly Ash Blended Cement Concrete Using Sea Water. International Journal Of Advanced Scientific And Technical Research, 2(4)...

Abstract: Earthquakes are one of the most devastating forces on the planet. The seismic waves that travel through the ground can demolish buildings, kill people, and cost billions of dollars in damage and restoration. According to the National Earthquake Information Centre, there are over 20,000 earthquakes every year on average, including 16 major disasters. The damage was caused by the collapse of buildings with people inside, as in previous earthquakes, prompting the development of earthquake-resistant constructions. Constructions intended to withstand earthquakes......

Keywords: Advanced Techniques, Earthquake, Effective Designs Process, Ideal Resistant Ratio, Structure failure seismology, and soil mechanism, vibration.

.......

Abstract: The suitability of construction materials to be used for different zones in an earthen dam requires different properties. The core provides impermeable barrier to the dam body and casing provide the support to the core of dam. The material to be used in both the zone have different requirements. Core material should have the characteristics of the low permeability, good shear strength and less compressible, while the casing material should have the high permeability and high shear strength. The geotechnical investigations are carried to determine the......

Keywords: expansive soil, geotechnical investigation, blending, borrow area

[1]. Lambe, T.W., and Whitman, R.V.: Soil Mechanics. John Wiley and Sons, New York (2000).
[2]. Gulati, S.K., and Datta, M.: Geotechnical Engineering. Tata McGraw- Hill, New Delhi (2005).
[3]. Arora, K. R.: Soil mechanics and foundation engineering. Standard Publishers, New Delhi (2000).
[4]. IS 2720-Part 8: Methods of test for soils – Determination of water content - dry density relation, Bureau of Indian Standards, New Delhi (1983).
[5]. IS 2720-Part 7: Standard Proctor Compaction, Bureau of Indian Standards, New Delhi (1980).

Abstract: Unlike transported soils, residual soils originate from the in-situ weathering and decomposition of the parent rock. They are formed in-situ. The typical tropical climatic conditions provide adequate moisture and temperature conditions to transform the underlying rocks in to residual soils, faster than they can be removed by any other transporting element. As the residual soils cover a major portion of the world geography, we have to encounter with this soil.....

Keywords: Residual Soils, Index Properties, Permeability, Compressibility, Shear Strength

[1]. Patel, H., Patel, P. and Patel, J. [2012] "Review of solar distillation methods" International Journal of Advanced Engineering
Research and Studies, Vol. II, Issue I: pp.157–161.
[2]. Aginam, C. H. et.al. (2015), "Geotechnical Properties of Lateritic Soils from Anambra Central Zone, Nigeria", International Journal
of Soft Computing and Engineering, Vol. 4, No. 6, pp:1-6
[3]. Aginam, C. H. et.al. (2014), "Geotechnical Properties of Lateritic Soils Northern Zone of Anambra State, Nigeria" published
at International Journal of Engineering Research and Development, vol. 10, no. 12, pp:23-29
[4]. Alhassan M. et.al. (2014), "Influence of Clay Mineralogy on Plasticity of Lateritic Soils", IOSR Journal of Mechanical and Civil
Engineering, Vol. 11, No. 3, pp: 18-21
[5]. Amadi A.N. et.al. (2015), "Assessment of the Geotechnical Properties of Lateritic Soils in Minna, North Central Nigeria for Road
design and Construction", American Journal of Mining and Metallurgy, 2015, Vol. 3, No. 1, pp: 15-20

Abstract: Compressibility of a soil mass is its susceptibility to decrease in volume under pressure and is indicated by soil characteristics like coefficient of compressibility, compression index and coefficient of consolidation. It is one of the most important engineering properties of soils and is used for the determination of rate of settlement and total amount of settlement of soil masses. However, the determination of soil compressibility characteristics in the laboratory is a cumbersome and time consuming process. On the other hand, determination of soil index properties such as particle sizes, Atterberg Limits etc. is relatively simpler and less time consuming. There are several existing models in literature which predict the compressibility characteristics of soil as a function of its index properties......

Keywords: soil compressibility characteristics, compression index, Clay with low compressibility, liquid limit, correlation models.

[1]. Azzouz A. S., Krizek, R. J., Corotis R. B. "Regression Analysis of Soil Compressibility." Soils Found. 1976: 16:19-29.doi:10.3208/sandf 1972.16.2_19.
[2]. Carter, M. and Bentley, S. P. (1991). "Correlations of Soil Properties." Pentech Press, London.
[3]. Cozzolino, V. M. (1961). "Statistical forecasting of compression index." Proc., 5th Int. Conf. on Soil Mech. And Found. Engrg., Paris, France, Vol. 1, 51-53.
[4]. Di Maio, C., Santoli, L., and Schiavone, P. (2004). "Volume Change behavior of Clays: the influence of Mineral Composition, Pore Fluid Composition and Stress State." Mech. Mater., 36(5-6), 435-451.
[5]. Fan, R., Liu, J., Liu, S., Du, Y., Liu, M., and You, S. (2021). " Predicting the Compression Index of Saturated Reconstituted Contaminated Clays using Soil Index Properties" KSCE Journal of Civil Engineering, Volume 25 No. 9, pp 3289-3297.

Abstract: The Seismic Dilatometer Test (SDMT) has emerged as a reliable and efficient in situ testing method for preliminary geotechnical site investigatio n s characterisation, particularly in regions prone to seismic activity. Combining the Flat Dilatometer Test (DMT) with seismic wave velocity measurements, the SDMT provides comprehensive data on soil stiffness, she ar wave velocity, and constrained modulus. This paper offers an in depth overview of the SDMT, discussing its instrument, working principle, and testing methodology. Emphasising its practical applications, the paper showcases its relevance in preliminary s eismic site specific studies , liquefaction potential assessment, and foundation design. Furthermore, the advantages of SDMT over conventional methods are outlined, along with a critical evaluation of its limitations. In the context of India's diverse geolo gical conditions and increasing infrastructure development, the SDMT presents itself as a valuable tool for ensuring safe and resilient infrast ructure . Prospects for the wider adoption of SDMT in India's geotechnical investigations are also explored.

Keywords: Seismic dilatometer test, site investigations, geotechnical engineering.

[1]. Marchetti, S. (1980). "In Situ Tests by Flat Dilatometer."
[2]. Totani, G., et al. (1998). " Seismic Dilatometer Test (SDMT) for Geotechnical Site Characterization."
[3]. Robertson, P. K. (2009). "Interpretation of In Situ Tests in Geotechnical Practice."
[4]. Ashford, S. A., & Sitar, N. (2002). "Seismic Site Response from In Situ Tests."
[5]. Mayne, P. W. (2007). "In Situ Test Evaluations for Geotechnical Site Characterization."