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   CN 44-1745/U

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Tunnel Construction ›› 2017, Vol. 37 ›› Issue (7): 872-877.DOI: 10.3973/j.issn.1672-741X.2017.07.014

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Study of Key Technologies of Steel Sleeve Launching and Receiving of Shield

WU Weilin1, ZHU Honghai1, ZOU Yu2, *, WANG Hujia1   

  1. (1. China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031, Sichuan, China;  2. School of Civil Engineering and Transportation, South China University of Technology,  Guangzhou 510641, Guangdong, China)
  • Received:2016-09-23 Revised:2017-01-23 Online:2017-07-20 Published:2017-07-26

Abstract:

There are many problems in steel sleeve launching and receiving of shield without end soil consolidation; and the safety and economy of shield launching and receiving should be guaranteed. As a result, the performances of steel sleeve, i. e. stiffness, tightness, leakproofness and pressure holding capacity, and key technologies are analyzed and studied by comparative analysis, simulation calculation and engineering test. The steel sleeve equipment is improved and the antiforce adjusting device and the threeway pipe device are adopted. [JP2]The engineering practice shows that the improved steel sleeve can ensure the safety and efficiency of shield launching and receiving without end soil consolidation.

Key words: shield, steel sleeve, launching, receiving, stiffness, tightness, pressure holding capacity

CLC Number: