Sidewall Enlarging Construction Technologies for Rivercrossing Tunnels

doi:10.3973/j.issn.1672-741X.2012.z2.037

Tunnel Construction ›› 2012, Vol. 32 ›› Issue (增刊2): 190-194.DOI: 10.3973/j.issn.1672-741X.2012.z2.037

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Sidewall Enlarging Construction Technologies for Rivercrossing Tunnels

LI Yongchun

(China Railway Tunnel Stock Co., Ltd., Zhengzhou 450003, China)

Received:2012-07-31 Revised:2012-09-10 Online:2012-12-20 Published:2013-02-19

Abstract

Abstract:

The construction technologies, including setting antecedent tunnel enlarging after tunnel, are used in the construction of Xiangjiang tunnel on Yingpan road in Changsha. Technologies, such as advance geological prediction, advance pregrouting, advance supporting system and other assistant technologies, are used. The construction of the tunnel is successful and the construction scheme is shortened. The paper can provide references for similar projects in the future.

Key words: small clean span tunnel, sidewall enlarging, assistant construction, monitoring

LI Yongchun. Sidewall Enlarging Construction Technologies for Rivercrossing Tunnels[J]. Tunnel Construction, 2012, 32(增刊2): 190-194.

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Sidewall Enlarging Construction Technologies for Rivercrossing Tunnels

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