长株潭城际铁路浅埋高黏性上软下硬不良地层土压平衡盾构施工技术研究

刘 辉; 杨海林

doi:10.3973/j.issn.1672-741X.2016.02.015

隧道建设 >

2016 , Vol. 36 >Issue 2: 221 - 227

DOI: https://doi.org/10.3973/j.issn.1672-741X.2016.02.015

施工技术

长株潭城际铁路浅埋高黏性上软下硬不良地层土压平衡盾构施工技术研究

刘辉 ,
杨海林

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（中铁隧道股份有限公司，河南郑州 450000）

刘辉（1982—），男，湖南衡阳人，2004年毕业于福州大学，土木工程专业，本科，工程师，主要从事地下工程技术管理工作。Email: 21534643@qq.com。

收稿日期: 2015-10-08

修回日期: 2015-12-20

网络出版日期: 2016-03-02

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Construction Technologies for EPB Shied Boring in Hardsoft Heterogeneous  Ground with High Viscidity: A Case Study on A Shallowcovered Shield  Tunnel on ChangshaZhuzhouXiangtan Intercity Railway

LIU Hui ,
YANG Hailin

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(China Railway Engineering Stock Co., Ltd., Zhengzhou 450000, Henan, China)

Received date: 2015-10-08

Revised date: 2015-12-20

Online published: 2016-03-02

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摘要

针对土压平衡盾构在高黏性与上软下硬地层中掘进施工容易出现的问题，依托长株潭城际铁路湘江隧道工程，对土压平衡盾构在浅埋高黏性上软下硬地层掘进施工技术进行研究探讨，通过改进盾构泡沫系统、改良盾构刀具配置、优化渣土改良等技术措施，较好地控制了地表沉降，确保盾构安全顺利掘进，通过了浅埋高黏性上软下硬地层。

关键词： 长株潭城际铁路; 浅埋; 高黏性; 上软下硬地层; 土压平衡盾构

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刘辉 , 杨海林 . 长株潭城际铁路浅埋高黏性上软下硬不良地层土压平衡盾构施工技术研究[J]. 隧道建设, 2016 , 36(2) : 221 -227 . DOI: 10.3973/j.issn.1672-741X.2016.02.015

Abstract

It is difficult for the earth pressure balance (EPB) shield tunneling in hardsoft heterogeneous ground with high viscidity. As a result, the construction technologies for EPB shield boring in hardsoft heterogeneous ground with high viscidity, such as improving the foaming system, improving the arrangement of cutting tools and improving the ground conditioning, are studied and then used. The results show that the ground surface settlement is brought under effective control and the safety of shield boring in hardsoft heterogeneous ground with high viscidity is guaranteed by using abovementioned technologies.

Key words： ChangshaZhuzhouXiangtan Intercity Railway; shallow cover; high viscidity; hardsoft heterogeneous ground; EPB shield

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