富水粉细砂层拆除被困TBM刀盘注浆加固技术

葛寨辉

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

隧道建设 >

2012 , Vol. 32 >Issue 增刊2: 105 - 110

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

施工技术

富水粉细砂层拆除被困TBM刀盘注浆加固技术

葛寨辉

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（中铁隧道集团技术中心，河南洛阳 471009）

葛寨辉（1981—），男，河北沧州人，2004年毕业于中国地质大学（北京）土木工程专业，本科，工程师，现从事隧道及地下工程软弱地层加固改良及病害治理技术研究工作。

收稿日期: 2012-08-16

修回日期: 2012-11-20

网络出版日期: 2013-02-19

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

GE Zhaihui

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

Received date: 2012-08-16

Revised date: 2012-11-20

Online published: 2013-02-19

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摘要

TBM在高压富水粉细砂层中掘进时，掌子面坍塌严重，实际出渣量远大于设计出渣量，致使TBM推力和扭矩增大，无法正常掘进而被困。为了能安全顺利地拆除被困的TBM刀盘，采取注浆加固的方法，对刀盘前方地层进行加固改良，在地层中形成无规则交错状浆脉，降低了地层的含水率，提高了地层的稳定性，保证了刀盘拆除工作的安全。

关键词： 富水; 粉细砂; 涌砂; TBM被困; 刀盘; 注浆加固

本文引用格式

葛寨辉 . 富水粉细砂层拆除被困TBM刀盘注浆加固技术[J]. 隧道建设, 2012 , 32(增刊2) : 105 -110 . DOI: 10.3973/j.issn.1672-741X.2012.z2.021

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

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