FUNDAMENTAL EFFICIENCY TESTS OF HIGH DURABILITY NEW TAIL-END-SEALING SYSTEM FOR SHIELD TUNNELING MACHINE

Shield tunneling method has been widely applied to the construction of underground structures in urban area and a demand for long distance tunneling under high underground water pressure is growing recently. To deal with the demand, a tail-end-sealing system of shield tunneling machine is treated in...

Full description

Saved in:
Bibliographic Details
Published inPROCEEDINGS OF TUNNEL ENGINEERING, JSCE Vol. 6; pp. 381 - 386
Main Authors ARIIZUMI, Takeru, KAINUMA, Norio, YOSHIMURA, Muneo, IMADATE, Fumio, IGARASHI, Hiromasa
Format Journal Article
LanguageEnglish
Published Japan Society of Civil Engineers 1996
Subjects
durability
model test
shield machine
tail clearance
tail seal
Online AccessGet full text

Cover

More Information
Summary:Shield tunneling method has been widely applied to the construction of underground structures in urban area and a demand for long distance tunneling under high underground water pressure is growing recently. To deal with the demand, a tail-end-sealing system of shield tunneling machine is treated in this report among other technology developments. We have designed a high durability new tail-end-sealing system which is made by filling up ordinary wire brush with poly urethane form, and a series of fundamental efficiency tests' has been carried out. As a result, it was clarified that the new tail-end-sealing system has higher sealing performance and higher durability than the ordinary wire brush type tail seal.
ISSN:1884-9091
DOI:10.11532/journalte1991.6.381