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(사)한국터널지하공간학회

ISSN : 2233-8292

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Vol.17 No.4
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A study on the social cost estimation of the tunnel section enlargement method considering traffic flow

(사)한국터널지하공간학회 / (사)한국터널지하공간학회, (P)2233-8292; (E)2287-4747
2015, v.17 no.4, pp.487-497



& (2015). A study on the social cost estimation of the tunnel section enlargement method considering traffic flow. (사)한국터널지하공간학회, 17(4), 487-497.
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Abstract

Using existing tunnel for section enlargement and remodeling is being considered as an optimal alternative in order to solve traffic jam in tunnel. The existing method has been performed while blocking the traffic flow. Recently, New enlargement method was developed which can maintain traffic flow during the construction by using protector. It can minimize social loss due to keeping traffic flow. On the other hand, installing and operating protector can cause economic disadvantages. So, social cost estimation considering traffic flow should be considered for relevant economic evaluation of tunnel section enlargement methods. This paper presents the social cost estimation method of tunnel section enlargement methods considering traffic flow. In addition, to compare economic efficiency existing method with new method, suggested method was applied to Maebong Tunnel.

keywords
Joints set, tunnel section enlargement method, social cost, economic feasibility, traffic flow, 절리군, 터널단면 확대기술, 사회적 손실비용, 경제성, 교통흐름

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