| Abstrak/Abstract |
A cantilever retaining wall construction is used to plan Dermaga Muara Bulian as a landmark area in Batanghari regency. Another common type of retaining wall that can be considered as an option is a concrete sheet pile.. This study amis to determine the most efficient type of retaining wall, especially in terms of the budget plan. The object of the research is the 75 meters length retaining wall construction. The 6 meters high cantilever wall combined with 12 meters piles are compared to 18 meters concrete sheet pile. Furthermore, the cantilever wall thickness was also optimized. The calculation method in this study used the Work Unit Price Analysis from the General Specifications of Bina Marga 2010 3rd Version (2014) and the Technical Specifications for Freeways and Toll Roads (2017). To optimize the cantilever wall thickness, flexible reinforced beam analysis is used to calculate the maximum moment that the cantilever wall can withstand. From the results, it is known that the budget plan of the cantilever retaining wall construction is Rp.3,744,771,892.83, the concrete sheet pile is Rp.2,945,315,870.44, and the optimized cantilever wall is Rp. 2,568,004,756.85. The difference cost between the cantilever wall to concrete sheet pile and optimized cantilever wall is 21.34% and 31.42%. So it can conclude that the lowest budget plan is the optimized cantilever wall construction.
Keywords : Budget plan, Cantilever wall, Comparasion, Concrete sheet pile |
