Long distance pipe-jacking cases using long life cutter bits in the big boulder and hard rock ground

Fumihiko Matsumoto, Tomo Morita, Takashi Sasaoka, Hideki Shimada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Mechanical pipe jacking methods are adopted for no-dig infrastructure-constructions because of reliability and safety. In especially, high density mud slurry pipe jacking method had much actual results under unique works. Nowadays these methods are desired any diversification under working surrounding. That is, "Direct- Arrival-Method to the existing underground structure", "Sharp radical curve pipe jacking works, for example ,U.L turning curved pipe lines", "Recovery function for un-expectation objects in the ground", and "Rectangular (Box Culvert) pipe jacking method" are demanded. On the other hands, the works in big cobble and hard rock layer are increasing. Under these conditions, the long life inspection of cutting bits is the most important problem. In generality, at life-time over, cutter bits are exchanged in the shield machine or outside pit with bad conditions. However, there are some troubles in these conditions. This report shows the works with long distance pipe line construction through the big cobble and hard-rock layer without replacing cutting bits.

Original languageEnglish
Title of host publication30th International No-Dig Conference and Exhibition 2012, No-Dig Sao Paulo 2012
Pages152-161
Number of pages10
Publication statusPublished - Dec 1 2012
Event30th International No-Dig Conference and Exhibition 2012, No-Dig Sao Paulo 2012 - Sao Paulo, Brazil
Duration: Nov 12 2012Nov 14 2012

Publication series

Name30th International No-Dig Conference and Exhibition 2012, No-Dig Sao Paulo 2012

Other

Other30th International No-Dig Conference and Exhibition 2012, No-Dig Sao Paulo 2012
CountryBrazil
CitySao Paulo
Period11/12/1211/14/12

All Science Journal Classification (ASJC) codes

  • Geology
  • Geophysics
  • Geotechnical Engineering and Engineering Geology
  • Civil and Structural Engineering
  • Mechanical Engineering
  • Building and Construction

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  • Cite this

    Matsumoto, F., Morita, T., Sasaoka, T., & Shimada, H. (2012). Long distance pipe-jacking cases using long life cutter bits in the big boulder and hard rock ground. In 30th International No-Dig Conference and Exhibition 2012, No-Dig Sao Paulo 2012 (pp. 152-161). (30th International No-Dig Conference and Exhibition 2012, No-Dig Sao Paulo 2012).