Jurnal Manajemen Teknologi
Vol 8, No 1 2009

Draw Point Construction Improvement Using Six Sigma

Basri, Mursyid Hasan (Unknown)
Mulyanto, Rahmat (Unknown)



Article Info

Publish Date
01 Jun 2002

Abstract

Draw point is a loading pointh beneath a stope, utilizing gravity to move down bulk material in underground mine block caving of PT Freeport Indonesia. A draw point is a steel set that is erected and poured in place with concrete. There are 9 sub processes of draw point construction: site preparation, lean concrete, embedded rail, concrete floor, anvil top, lintel set, forming & meshing, wall & roof concrete, stripping & general clean-up. Based on data analysis period 2008, there is a gap 4.03 until draw point of yearly target with average of completion time of a draw point construction 46.44 shifts and standard deviation 6.95 shifts. It is slower by 9.7% of target 42 shifts. The high standard deviation and slower process indicate there is a process quality problem in draw point construction so it makes draw point construction incompliance to achieve its monthly or yearly target. For improving the process quality, Six Sigma approach with DMAIC methodology will be used to indentify incapable process and its causes. Then alternative solutions are proposed to fix it and control the key process variable causing the defects.Keywords:completion time, process quality, six sigma, DMAIC

Copyrights © 2009






Journal Info

Abbrev

mantek

Publisher

Subject

Computer Science & IT Decision Sciences, Operations Research & Management

Description

Jurnal Manajemen Teknologi merupakan salah satu publikasi ilmiah yg diterbitkan oleh SBM ITB, dalam kerangka untuk mendorong pengembangan praktik dan teori manajemen di Indonesia melalui penyebarluasan temuan-temuan hasil riset di bidang sains dan kasus manajemen. Jurnal ini dikenal secara luas ...