International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 11 Issue: 06 | Jun 2024
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p-ISSN: 2395-0072
" Case Study: Construction of Cast In Situ Piles and Pile Cap for Pier Number 370 at Line 2B Bandra Station” Rushikesh Shelke1, Rohit Metkari2, Akash Phuge3 1MBA Student, Advanced Construction Management, NICMAR University, Pune
2MBA Student, Advanced Construction Management, NICMAR University, Pune 3 MBA Student, Advanced Construction Management, NICMAR University, Pune ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - This research paper presents an in-depth case
key part of this project, presenting unique challenges due to its complex soil conditions and urban setting. The choice of cast in situ piles for this project was based on their ability to handle heavy loads, adapt to varying soil conditions, and fit within the constraints of the surrounding urban environment.
study on the construction of cast in situ piles and pile caps for Pier Number 370 at Bandra Station, part of the Mumbai Metro Line 2B project. The study meticulously details the geotechnical investigation process, including borehole drilling, soil sampling, and in-situ testing to assess subsurface conditions and inform design parameters. The construction of metro infrastructure in urban environments requires meticulous planning and innovative engineering solutions. This paper elaborates on the engineering design considerations for the piles and pile caps, covering concrete mix design and reinforcement detailing. It describes the construction sequence, from site preparation and pile boring to concreting piles and forming pile caps. The use of specialized equipment and techniques, such as rotary piling rigs and tremie pipes for underwater concreting, is also discussed. Findings from this case study provide critical insights into executing large-scale infrastructure projects in densely populated urban areas. The paper concludes with recommendations for future projects, emphasizing thorough planning, continuous monitoring, and adaptive problemsolving to achieve successful outcomes in complex construction environments. This study aims to contribute to the existing body of knowledge in civil engineering and serve as a reference for practitioners and researchers involved in similar projects.
1.1 Challenges and Solutions: Building Pier Number 370 came with challenges like controlling groundwater and dealing with varying soil conditions in a busy urban area. Innovative solutions, such as dewatering techniques and advanced monitoring systems, were used to address these challenges effectively.
1.2 CAST IN SITU PILE: Cast in situ piles are deep foundation elements constructed directly at the project site. This method involves drilling a hole into the ground, placing reinforcement, and filling it with concrete. These piles are particularly useful in urban environments where soil conditions can vary, and large loads need to be supported. This case study examines the use of cast in situ piles for Pier Number 370 at Bandra Station as part of the Mumbai Metro Line 2B project.
1.3 Geotechnical Investigation:
Key Words: Cast in Situ Piles, Pile Cap, Geotechnical Investigation, Borehole Drilling, Soil Sampling In-Situ Testing, Metro Infrastructure, Mumbai Metro Line 2B, Pier Number 370, Reinforcement Detailing, Specialized Equipment.
Before construction began, a thorough geotechnical investigation was carried out to understand the subsurface conditions. Borehole Drilling: Drilling holes into the ground to collect soil samples. Soil Sampling: Analysing the soil samples in a laboratory to determine their properties. In-Situ Testing: Conducting tests on-site to measure soil strength and other characteristics. These investigations provided crucial data on soil stratigraphy, bearing capacity, and groundwater conditions, which informed the design of the piles.
1. INTRODUCTION The rapid growth of cities and the need for better infrastructure call for strong and reliable construction methods, especially for large projects like metro systems. The foundation is a crucial part of these projects, as it ensures that the structure remains stable and durable. Among the different foundation techniques, cast in situ piles and pile caps are particularly effective, especially in challenging urban environments. The Mumbai Metro Line 2B project is a significant infrastructure project in one of India's most crowded cities. Pier Number 370 at Bandra Station is a
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1.4 Design Consideration:
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The design of cast in situ piles involved several key factors:
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