Improving Cost Efficiency of Hospital X Phase 1 Foundations using Value Engineering
DOI:
https://doi.org/10.24036/qvz0d273Keywords:
Value engineering, Foundation, Bored pile, Spun pile, Cost, Hospital buildingAbstract
The foundation is a key structural component that requires careful design and analysis. Selecting an appropriate foundation type was essential to achieve adequate structural capacity while maintaining efficiency in cost and construction time. In the Phase 1 construction of the Hospital X main building, the initial design adopted a spun pile foundation installed using a Hydraulic Static Pile Driver (HSPD). However, field investigations identified a lens layer approximately 3 meters thick at a depth of 7 meters, which posed a significant constraint because the HSPD system was unable to penetrate this layer effectively. To overcome this limitation, an alternative solution was proposed in the form of a bored pile foundation constructed using an in-situ drilling and casting method. The alternative was evaluated using the value engineering approach to assess its feasibility in terms of performance and cost efficiency. The results indicated that the proposed design provided improved structural performance, with the load-bearing capacity increasing from 152 tons in the spun pile system to 215.14 tons in the bored pile system. In addition, the cost analysis showed a reduction from Rp 9,878,513,907 for the 600 mm spun pile foundation to Rp 8,861,663,857 for the 800 mm bored pile foundation, resulting in savings of Rp 1,016,850,050 (10.29%). These findings demonstrated that the application of value engineering enhanced both technical performance and economic efficiency in foundation design.
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Copyright (c) 2025 Paksi Dwiyanto Wibowo, Anom Wibisono, Ahmad Yunus, Zel Citra, Yosie Malinda, Herol
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