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(사)한국터널지하공간학회

ISSN : 2233-8292

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Vol.16 No.4
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Influencing factors for abrasive flow rate and abrasive flow quality of abrasive injection waterjet systems for tunnel excavation

(사)한국터널지하공간학회 / (사)한국터널지하공간학회, (P)2233-8292; (E)2287-4747
2014, v.16 no.4, pp.417-430



& (2014). Influencing factors for abrasive flow rate and abrasive flow quality of abrasive injection waterjet systems for tunnel excavation. (사)한국터널지하공간학회, 16(4), 417-430.
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Abstract

A new rock excavation method using an abrasive waterjet system is under development for efficiently creating tunnels and underground spaces in urban areas. In addition, an appropriate abrasive flow rate and abrasive flow quality are important for the new rock excavation (cutting) method using an abrasive waterjet system. This study evaluated the factors influencing the abrasive flow rate and abrasive flow quality, specifically the abrasive pipe height, length, tortuosity and inner diameter, through experimental tests. Based on the experimental test results, this study suggested optimal conditions for the abrasive flow rate and abrasive flow quality. The experimental results can be effectively utilized as baseline data for rock excavation methods using an abrasive waterjet system in various construction locations such as tunnels near urban surroundings, utility tunnels, and shafts.

keywords
Abrasive waterjet, abrasive pipe, abrasive flow rate, abrasive flow quality, rock excavation, 연마재 워터젯, 연마재 관, 연마재 투입량, 연마재 입자 유동성, 암반 굴착

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