OPTIMASI BIAYA PEKERJAAN ASPAL HOT MIX DENGAN MODEL PENUGASAN (ASSIGNMENT MODEL) PADA PROYEK JALAN DI MALANG

Abstract

Abstrak:

Aspal hot mix merupakan salah satu bahan yang digunakan untuk lapisan perkerasan jalan. Pada tahun 2004 di MALANG terdapat 55 proyek yang dilayani oleh 10 alat pencampur aspal hot mix (Asphalt Mixing Plant/ AMP), akibat keterbatasan AMP menyebabkan terjadinya keterlambatan proyek. Tesis ini bertujuan untuk melakukan optimasi biaya pekerjaan aspal hot mix dengan model penugasan (Assignment). Optimasi biaya dilakukan dengan mengatur alokasi AMP untuk memenuhi kebutuhan proyek. Analisa dilakukan dengan menghitung kebutuhan hot mix masing-masing proyek, harga sewa, biaya mobilisasi dan demobilisasi. Dari hasil analisis diperoleh penugasan masing-masing AMP yaitu PT. Kresna Karya, PT. Tunas Jaya Sanur, PT. Adi Murti, PT. Sinar MALANG, PT. Darma Buana Karya, PT.AKAS, PT. Sumber Karisma Jaya dan PT. Dwi Arta Yuda Utama sebanyak 6 penugasan. PT. Makura mendapat 4 penugasan dan PT. Harapan Jaya mendapat 3 penugasan. Total biaya sebesar Rp. 29.456.132.296,00, sedangan biaya total minimum dari palaksanaan riil dilapangan diperoleh biaya sebesar Rp. 32.347.308.872,00. Jadi,dengan model penugasan diperoleh penghematan biaya sebesar Rp. 2.891.176.576,00.

Kata kunci: optimasi, aspal hot mix, model penugasan.

Abstact:

Hot mix asphalt is one kind of the material, which is used for road pavement. In 2004 there were 55 projects served by 10 Asphalt Mixing Plants/AMP in MALANG, due to limited AMP causes the project delayed. The objective of this research is to optimized the project cost of hot mix asphalt based on assignment model. Cost optimalization is undertaken by regulating AMP allocation to fulfill the project need. The analysis is undertaken through the calculation the need of hot mix for each project, lease cost, mobilization as well as demobilization cost. Based on the result of analysis, it is found that assignment for each AMP, is as follows: PT. Kresna Karya, PT. Tunas Jaya Sanur, PT. Adi Murti, PT. Sinar MALANG, PT. Darma Buana Karya, PT.AKAS, PT. Sumber Karisma Jaya and PT. Dwi Arta Yuda Utama with 6 assignment, PT. Makura got 4 assigment and PT. Harapan Jaya got 3 assigment. Total Cost is Rp 29,456,132,296, while minimum total cost from real implementation of the project site is found Rp 32,347,308,872. Hence, the efficiency found by using this assignment model is about Rp. 2.891.176.576,00.

Keywords: optimalization, hot mix asphalt, assignment model.