6.22 m敞口式盾构前檐支护装置的设计与研究

崔立山; 王建辉; 杨海涛

doi:10.3973/j.issn.1672-741X.2014.06.016

隧道建设 >

2014 , Vol. 34 >Issue 6: 592 - 597

DOI: https://doi.org/10.3973/j.issn.1672-741X.2014.06.016

施工机械

6.22 m敞口式盾构前檐支护装置的设计与研究

崔立山 ,
王建辉 ,
杨海涛

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(北京市三一重机有限公司盾构公司，北京 102202)

崔立山(1986—)，男，辽宁营口人，2011年毕业于东北大学，机械设计及理论专业，硕士，工程师，主要从事盾构研制方面的工作。

收稿日期: 2013-12-03

修回日期: 2014-03-06

网络出版日期: 2014-06-16

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Design of and Study on Advance Timbering of 6.22 m Open Shield

CUI Lishan ,
WANG Jianhui ,
YANG Haitao

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(Company of Tunneling Shield Manufacturing, Beijing SANY Heavy Machinery Co., Ltd.,Beijing 102202, China)

Received date: 2013-12-03

Revised date: 2014-03-06

Online published: 2014-06-16

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摘要

前檐支护装置是敞口盾构的重要部件，主要作用是支撑隧道面上部，承载拱顶的土压力，避免上方土体的坍塌。以北京地铁6号线敞口盾构前檐装置为研究对象，介绍前檐支护装置的功能、结构、前檐推力计算及油缸选型。选取2种典型工况进行有限元分析，得到前檐的应力云图和位移云图，为前檐的设计和改进提供参考,同时提出改进措施，并进行改进。通过样机的试制及实际施工的检验，证明了前檐结构的可行性、可靠性。

关键词： 盾构; 敞口式; 前檐; 设计

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崔立山 , 王建辉 , 杨海涛 . 6.22 m敞口式盾构前檐支护装置的设计与研究[J]. 隧道建设, 2014 , 34(6) : 592 -597 . DOI: 10.3973/j.issn.1672-741X.2014.06.016

Abstract

Advance timbering, an important component of open shield, plays a crucial role in supporting the tunnel, bearing the earth pressure and preventing the collapse. In the paper, the function, configuration, thrust calculation and cylinder selection of the advance timbering of 6.22 m open shield used in No. 6 line of Beijing Metro are presented. Furthermore, a finite element model for the advance timbering is established based on 2 typical working conditions and the stress and deformation contour plots are generated. According to the analysing results, improvement measures are proposed and carried out. The boring of the prototype shield proves that the advance timbering designed is feasible and reliable.

Key words： open shield; advance timbering; design

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