DEVELOPMENT OF TOTAL BLASTING SYSTEM“DMEC”FOR TUNNEL EXCAVATION

The total blasting system “DMEC” is the system to provide accurate locations of drill holes with laser beams. The database of past performance including hole numbers, drill hole length, explosive charge etc., is used in this system to design the optimum blasting pattern suiting various geological fe...

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Bibliographic Details
Published inPROCEEDINGS OF TUNNEL ENGINEERING, JSCE Vol. 4; pp. 407 - 410
Main Authors SUZUKI, Hitoshi, TANAKA, Yasuhiro, KOBAYAKAWA, Tadayuki, ISHIDA, Yoshiaki
Format Journal Article
LanguageEnglish
Japanese
Published Japan Society of Civil Engineers 1994
公益社団法人 土木学会
Subjects
expert system
laser marking
non electrical detonator rapid execution
tunnel blasting
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ISSN1884-9091
DOI10.11532/journalte1991.4.407

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Summary:The total blasting system “DMEC” is the system to provide accurate locations of drill holes with laser beams. The database of past performance including hole numbers, drill hole length, explosive charge etc., is used in this system to design the optimum blasting pattern suiting various geological features and tunnel sections. The design result is transferred to the laser marking system and the drill hole locations are lit up continuously on the tunnel face with laser beam. The system significantly contributes to the reduction of overexcavation, the saving of manual work and the improvement of safety on site.
ISSN:1884-9091
DOI:10.11532/journalte1991.4.407