Design of Automatic Belt Releasing and Withdrawing Device and ItsApplication Result

Tunnel Construction ›› 2011, Vol. 31 ›› Issue (6): 765-769.

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Design of Automatic Belt Releasing and Withdrawing Device and ItsApplication Result

WANG Yanbo

(The 2nd Engineering Co., Ltd. of China Railway Tunnel Group, Sanhe 065201, Hebei, China)

Received:2011-10-11 Revised:2011-10-25 Online:2011-12-20 Published:2012-01-11

Abstract

Abstract: When continuous muck belt conveyor is adopted for the mucking in TBM tunneling, the releasing and withdrawing of the belt has many issues to be solved, including great difficulty, high cost, high labor forces, low safety coefficient and serious belt damage. Automatic belt releasing and withdrawing device are introduced to TBM tunneling. The structure, working principle and application of the automatic belt releasing and withdrawing device used in West Qinling tunnel on LanzhouChongqing railway are presented. The practice demonstrates that the safety and quality of the releasing and withdrawing of the belt have been ensured, the efficiency has been improved and the working intensity of the labors has been reduced. 

Key words: West Qinling tunnel, continuous mucking belt conveyor, belt releasing and withdrawing device, design, practical effect

WANG Yanbo. Design of Automatic Belt Releasing and Withdrawing Device and ItsApplication Result[J]. Tunnel Construction, 2011, 31(6): 765-769.

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Design of Automatic Belt Releasing and Withdrawing Device and ItsApplication Result

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