高深埋小曲线段盾构过中间风井施工技术

张红伟，荣亮

doi:10.3973/j.issn.1672-741X.2012.01.018

隧道建设 >

2012 , Vol. 32 >Issue 1: 103 - 106

DOI: https://doi.org/10.3973/j.issn.1672-741X.2012.01.018

施工技术

高深埋小曲线段盾构过中间风井施工技术

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(中铁隧道股份有限公司，郑州 450000)

张红伟（1984—），男，江苏徐州人，2007年毕业于重庆交通大学水利水电工程专业，本科，助理工程师，从事隧道施工与管理工作。

收稿日期: 2011-11-04

修回日期: 2011-12-26

网络出版日期: 2012-03-09

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Shield Tunneling through Intermediate Ventilation Shaft on Smallradius Curve with Deep Overburden

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(China Railway Tunnel Stock Co., Ltd., Zhengzhou 450000, China)

Received date: 2011-11-04

Revised date: 2011-12-26

Online published: 2012-03-09

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摘要

为解决泥水平衡盾构机在高深埋、高水压、小曲线半径工况下，盾构机沿曲线轨迹直接掘进中间穿越风井技术难题，以武汉地铁二号线越江隧道工程盾构机在350m小曲线上连续掘进穿越中间风井为例,通过方案优化，制订切实可行的对策，采用切线进洞和补偿法出洞、合理控制掘进参数、把控管片拼装质量等方法，安全顺利地完成盾构穿越中间风井施工，以期为今后类似工程施工提供借鉴。

关键词： 小曲线; 高埋深; 高水压; 泥水盾构; 中间风井

本文引用格式

张红伟，荣亮 . 高深埋小曲线段盾构过中间风井施工技术[J]. 隧道建设, 2012 , 32(1) : 103 -106 . DOI: 10.3973/j.issn.1672-741X.2012.01.018

Abstract

The rivercrossing tunnel on No. 2 line of Wuhan Metro is under deep overburden and high water pressure. Furthermore, the shield machine has to pass through the intermediate ventilation shaft along 350mradius curve. The original tunneling scheme is optimized and countermeasures, including the shield launching along the tangent line, the shield arriving under compensation, proper control of the boring parameters and guarantee the segment erection quality, are taken. In the end, the shield machine passes through the intermediate ventilation shaft successfully and safely. The paper can provide reference for similar projects in the future.

Key words： smallradius curve; deep overburden; high water pressure; slurry shield; intermediate ventilation shaft

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