Grouting Consolidation Technologies for Disassembling Jammed TBM Cutter Head in Waterrich and Silty Sand Stratum

doi:10.3973/j.issn.1672-741X.2012.z2.021

Tunnel Construction ›› 2012, Vol. 32 ›› Issue (增刊2): 105-110.DOI: 10.3973/j.issn.1672-741X.2012.z2.021

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Grouting Consolidation Technologies for Disassembling Jammed TBM Cutter Head in Waterrich and Silty Sand Stratum

GE Zhaihui

(Technology Centre of China Railway Tunnel Group Co., Ltd., Luoyang 471009, Henan, China)

Received:2012-08-16 Revised:2012-11-20 Online:2012-12-20 Published:2013-02-19

Abstract

Abstract:

The TBM often jammed due to the overlarge thrusting force and torque induced by collapse of working face and overlarge mucking during TBM boring in waterrich and silty sand stratum. The ground ahead of cutter head is grouting consolidated, so as to successfully disassembling the jammed TBM. The watercontaining rate of the ground is reduced, the stability of the ground is improved and the successful and safe disassembling of cutter head is guaranteed.

Key words: water rich, silty sand, sand bursting, TBM jamming, cutter head, grouting consolidation

GE Zhaihui. Grouting Consolidation Technologies for Disassembling Jammed TBM Cutter Head in Waterrich and Silty Sand Stratum[J]. Tunnel Construction, 2012, 32(增刊2): 105-110.

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Grouting Consolidation Technologies for Disassembling Jammed TBM Cutter Head in Waterrich and Silty Sand Stratum

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