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(사)한국터널지하공간학회

ISSN : 2233-8292

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Vol.19 No.01
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A study on the discharge pipes wear of slurry shield TBM in rock strata

(사)한국터널지하공간학회 / (사)한국터널지하공간학회, (P)2233-8292; (E)2287-4747
2017, v.19 no.01, pp.57-70
https://doi.org/10.9711/KTAJ.2017.19.1.057



& (2017). A study on the discharge pipes wear of slurry shield TBM in rock strata. (사)한국터널지하공간학회, 19(01), 57-70, https://doi.org/10.9711/KTAJ.2017.19.1.057
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Abstract

In this study, we investigated the wear measurement methods for slurry pipe applied in the field of mining and oil sand industry and theoretical equations related to the prediction of wear in slurry pipe through literature review. Average daily wear rate and wear rate per excavated distance were determined from slurry discharge pipe thickness measurement data periodically measured at the actual slurry shield TBM site in Singapore. The wear rate of slurry pipe for Bukit Timah Granite was obtained. The wear rates for G (V) grade and mixed zone were 1.5 times higher than that of G (I) to G (IV) grade. Slurry pipe wear rate tended to increase in proportion to the slurry discharge velocity. The optimal slurry pipe replacement or rotation frequency can be estimated through the selection of the pipe wear rate considering geological condition and the reasonable pipe management thickness.

keywords
슬러리 파이프, 마모도, 파이프 교체주기, 쉴드TBM, Slurry pipe, Wear, Pipe replacement frequency, Shield TBM

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