A STUDY ON THE EFFECTS OF EXCAVATING VERTICAL SHAFT BY THE VERTICAL-HORIZONTAL CONTINUOUS SHIELD TUNNELING METHOD ON THE GROUND

DOI

Bibliographic Information

Other Title
  • 立坑と横坑を連続して掘進するシールド施工の地盤に与える影響の考察

Description

A shield tunnelling method which permits continuous excavation of a vertical shaft and a main tunnel to considerable depths is beginning to be introduced in the Metropolitan area.<BR>This is a study on coupled FEM analysis performed to investigate the effects of shaft excavation on the mechanical and hydraulic properties of the ground that vary between the said method and conventional techniques, most typically the pneumatic caisson metod. The analysis revealed that the method prevents shear strains due to main tunnel excavation from concentrating in shaft-main tunnel junctions, and thereby decreases a likelihood of local stress concentrations occurring in these sections.

Journal

Keywords

Details 詳細情報について

  • CRID
    1390282680378711552
  • NII Article ID
    130004128747
  • DOI
    10.11532/journalte1991.6.63
  • ISSN
    18849091
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

Report a problem

Back to top