ISSN 2096-4498
CN 44-1745/U
ISSN 2096-4498
CN 44-1745/U
Analysis on and Countermeasures for Unbalanced Forces on Cutterhead of Largediameter Shield
Received date: 2013-05-10
Revised date: 2013-06-19
Online published: 2014-01-21
In heterogeneous ground, the cutterhead of largediameter shield is subject to unbalanced force. In the paper, the unbalanced force on the cutterhead of largediameter shield in heterogeneous ground is analyzed and the optimized design of the cutterhead of largediameter shield is proposed. Ancillary supporting wheels are added to the cutterhead to transfer the cutterhead under cantilever state to that under simple support state. Comparison and contrast is made between the cutterhead before optimization and that after optimization by means of finite element analysis, which proves that the force conditions of cutterhead with supporting wheels added have been greatly improved.
Key words： shield; cutterhead; unbalanced force; supporting wheel; finite element analysis
HAN Weifeng , ZHOU Jianjun , LI Fengyuan . Analysis on and Countermeasures for Unbalanced Forces on Cutterhead of Largediameter Shield[J]. Tunnel Construction, 2014 , 34(1) : 78 -82 . DOI: 10.3973/j.issn.1672-741X.2014.01.013
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