Strategy for Accelerating Completion of Remaining Bridge Construction Project Work Using the Critical Path Method (Study on the Overvass Road Kilometer 2 Bridge Construction Project Owned by PT Binuang Mitra Bersama)

Abstract

PT. Binuang Mitra Bersama company engaged in coal mining. The company is carrying out the construction work of the overpass haul road bridge Km. 2 on the trase or national road section at Simpang Marabahan, Margasari, Tapin Regency, South Kalimantan Province. The construction of the Overpass Bridge is funded by the corporate social responsibility (CSR) of PT. Binuang Mitra Bersama and as a consequence of the hauling road crossing the national road. Litas permits with the Ministry of Public Works and Public Housing are one year, starting from June 2017 to July 2018. During the process of implementing the bridge construction overpasses several problems arise. First, the position of the land for the retaining wall and the gravity wall for the construction of the bridge's concrete retaining wall in Banjarmasin at the residents' complaint. Second, the work process for installing bridge erection girder has instructions from the Ministry of Public Works and Public Housing on 20 February 2018 to temporarily stop the work. In this study the technique or strategy of accelerating the completion of work with network diagrams Precedence Diagram Method (PDM), which makes work activities based on job design drawings, makes logic by simplifying each stage of work activities for the purpose of each work activity can be divided and made groups working group, making parts of work activities and working groups so that the composition and number of activities are seen and the linkages or dependencies include. After the Precedence Diagram Method (PDM) network is created, the critical trajectory is analyzed, the activities included in the critical trajectory are made accelerated in critical trajectory activities with acceleration in critical trajectory activities or rescheduling. The results of the study are as follows; first, the delay factor is caused by internal factors, the temporary suspension of installation of girder (erection girder) and the duration of time to 261 (two hundred and sixty one) calendar days exceeding the duration of the contract 240 (two hundred and forty) calendar days and replacement of land and building a house on the land. Second, to simplify the settlement of the job using the Precedence Diagram Method (PDM) work network diagram method. The three techniques or strategies for accelerating the completion of work by accelerating (rescheduling) critical paths on the Precedence Diagram Method (PDM) diagram with the duration of the results being 231 (two hundred thirty one) calendar days and cost efficiency of Rp. 14,550,000, 00.