PERFORMANCE ANALYSIS OF UPPER PART TUNNELING CYCLE OF THE XYZ TUNNEL

• Main Author: INDRA SUBROTO (NIM : 12114006), ANDHIKA
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/25488
• Institution: Institut Teknologi Bandung

The XYZ Tunnel Project is a double track railroad tunnel through 473 meters of <br /> <br /> hills with the inlet side at KM 359 + 155 and the outlet side at KM 359 + 628. <br /> <br /> Tunneling using New Austrian Tunneling Method (NATM) is focused to complete <br /> <br /> the upper part of the tunnel so that the inlet and outlet sides are connected within <br /> <br /> the planned time. <br /> <br /> One of the project management is to optimize a cycle of upper tunnel well. <br /> <br /> Optimization is done on the timing of each stage of tunneling, obstacle analysis that <br /> <br /> makes the work is not running optimally, and the availability of tools. Data to <br /> <br /> perform the optimization is done by recording daily activities consisting of the <br /> <br /> timing of each stage of tunneling, working hours per equipment, and other records <br /> <br /> outside the activities of direct field observers. <br /> <br /> The observation results show that the acceleration system can increase the <br /> <br /> performance of upper part tunneling of XYZ Tunnel. The upper part tunneling <br /> <br /> cycle of the XYZ Tunnel is not in accordance with the New Austrian Tunneling <br /> <br /> Method (NATM) because the activity is not done in the proper sequence. Physical <br /> <br /> Availabilty equipment is above 90%. Work in series causes Effective Utilization <br /> <br /> (EU) value to be below 50% because equipment is only used in accordance with its <br /> <br /> working time only.