Construction Technology of Highway Tunnel Crossing Minedout Area

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Tunnel Construction ›› 2008, Vol. 28 ›› Issue (5): 616-619,627.DOI: B

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Construction Technology of Highway Tunnel Crossing Minedout Area

QIU Li-Qiu, WANG Pan-Hu

1. Longyan Yongwu Highway Co., Ltd.2. Hangzhou Branch Company of China Railway Tunnel Group

Received:2008-04-24 Revised:2008-09-27 Online:2008-10-20 Published:2009-11-25

Abstract

Abstract:

During the construction of Longjing tunnel on Yongwu highway, technical measures such as advance support by means of double layers of small pipes, sealing by shotcreting and rock bolting, backfilling by pumped concrete, enhanced support of tunnel body, installing cushion layers and monitoring measurement are taken for the minedout area. In the end, the tunnel passes the minedout area safely and successfully. These technical measures are presented in the paper, which can provide reference for similar works in the future.

Key words: , highway tunnelminedout areaconstruction technology

CLC Number:

U455

QIU Li-Qiu, WANG Pan-Hu. Construction Technology of Highway Tunnel Crossing Minedout Area[J]. Tunnel Construction, 2008, 28(5): 616-619,627.

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Construction Technology of Highway Tunnel Crossing Minedout Area

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