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http://dx.doi.org/10.5762/KAIS.2020.21.8.26

The Improvement of Tunnel Construction Cost Standards Considering the Site Conditions in Korea  

Ahn, Bang-Ryul (Cost Engineering & Management Cernter, Korea Institute of Civil Engineering and Building Technology)
Lee, Han-Soo (Hyeonin PCM)
Oh, Jae-Hoon (Cost Engineering & Management Cernter, Korea Institute of Civil Engineering and Building Technology)
Song, Tae-Seok (Cost Engineering & Management Cernter, Korea Institute of Civil Engineering and Building Technology)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.21, no.8, 2020 , pp. 26-35 More about this Journal
Abstract
Tunnel construction is an important part of Korean public construction projects. Although the development of various equipment and technologies has led to advances in tunnel construction methods that are implemented on sites, the cost standards related to such works do not yet reflect the realities of the construction sites. A literature review and site surveys were conducted to suggest reasonable cost standards for tunnel work that reflects the realities of the field. First, each item in the cost standards for tunnel work, as established in the Construction Standard Production Rates, were analyzed. The results were compared with the actual costs implemented on tunnel projects. The key items analyzed included those regarding the work cycle time, such as rock classification, profiling survey, drilling speed, and muck-disposal processing equipment combination, as well as the number of people put to tunneling work. Based on the site survey results, improved estimates regarding the cycle time per one tunnel drilling blast, drilling speed of the machine, muck disposal processing equipment combination, and the number of people put to tunneling work were suggested. This study suggests the cost standards that reflect the realities of tunneling sites. The results are expected to help ensure adequate costs for tunnel construction projects.
Keywords
Construction Standard Production Rates; Tunnel Construction; Cycle Time; Crew; Specification;
Citations & Related Records
Times Cited By KSCI : 11  (Citation Analysis)
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