单护盾TBM管片旋转问题及应对措施

吴乐

doi:10.3973/j.issn.1672-741X.2012.06.025

隧道建设 >

2012 , Vol. 32 >Issue 6: 892 - 895

DOI: https://doi.org/10.3973/j.issn.1672-741X.2012.06.025

施工技术

单护盾TBM管片旋转问题及应对措施

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（中铁隧道股份有限公司，郑州 450003）

吴乐（1985—），男，新疆鄯善人，2006年毕业于长安大学公路工程专业，本科，助理工程师，现主要从事隧道工程施工及管理工作。

收稿日期: 2012-08-20

修回日期: 2012-10-10

网络出版日期: 2012-12-28

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Countermeasures for Segment Rotation in Tunneling by Singleshield TBM

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

Received date: 2012-08-20

Revised date: 2012-10-10

Online published: 2012-12-28

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摘要

为了解决由于单护盾TBM掘进刀盘扭矩过大或盾体姿态发生偏差时，管片在掘进过程中产生旋转，造成管片安装精度、外观质量及运输效率受到影响等问题，结合单护盾TBM在软岩地层掘进条件下,分析管片旋转产生的原因，针对刀盘等设备的结构进行设计改进、优化掘进参数、优选刀具类型、及时清理刀盘以及必要时采取牺牲管片环缝与纵缝等措施，最终解决了单护盾TBM掘进过程中管片旋转的施工难题。

关键词： 单护盾TBM; 刀盘; 扭矩; 管片; 旋转

本文引用格式

吴乐 . 单护盾TBM管片旋转问题及应对措施[J]. 隧道建设, 2012 , 32(6) : 892 -895 . DOI: 10.3973/j.issn.1672-741X.2012.06.025

Abstract

The erection precision and appearance quality of the segments, as well as the transportation efficiency in the tunnel, are reduced due to the rotation of tunnel segments caused by the overtorque of the cutter head and the improper posture of the shield TBM. The causes for the segment rotation are analyzed, with the tunneling of a singleshield TBM in soft ground as an example. Countermeasures, including improving the structural design of the cutter head, optimizing the boring parameters, proper selection of cutting tools, timely cleaning the cutter head and sacrificing the circumferential and longitudinal joints of the segments, are taken, which solves the segment rotation problem successfully.

Key words： singleshield TBM; cutter head; torque; segment; rotation

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