DESIGN AND CONSTRUCTION OF TUNNEL FOR DUST COLLECTOR WITH OVER 250m2 OF CROSS SECTION

This project is to construct a tunnel for dust collector with 252m2 of cross section by using the top heading & bench cutting method. Based on the data by geological pre-investigations using bore-hole-scope. The excavation of dust collector tunnel was completed with the reinforcement of rock-bol...

Full description

Saved in:
Bibliographic Details
Published inPROCEEDINGS OF TUNNEL ENGINEERING, JSCE Vol. 12; pp. 257 - 262
Main Authors MURAKAMI, Takao, YAMADA, Hiroyuki, INOUE, Masato, MUKAI, Morio, OHUCHI, Hiroyuki
Format Journal Article
LanguageEnglish
Published Japan Society of Civil Engineers 18.11.2002
Subjects
Dust collector tunnel
Reinforcement of cross-part Proving ahead of tunnel face
The large flat-cross section
Online AccessGet full text

Cover

More Information
Summary:This project is to construct a tunnel for dust collector with 252m2 of cross section by using the top heading & bench cutting method. Based on the data by geological pre-investigations using bore-hole-scope. The excavation of dust collector tunnel was completed with the reinforcement of rock-bolts at the cross-part between the dust collector tunnel and another additional tunnel. It was observed that the stable/unstable condition of supports was under the influence of the cracks at the fracture zone. Therefore, the countermeasure against cracks would be effective.
ISSN:1884-9091
DOI:10.11532/journalte1991.12.257