Monitoring of Ground Behavior During the Excavation of an Underground Ramp

Grant Hasan, Alireza Afshani*, Hirokazu Akagi, Keiichiro Endou

*この研究の対応する著者

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

In large cities, underground spaces are gradually limited and interaction between new excavation and existing underground structure becomes a very important problem. The excavation of several underground ramps was launched in Tokyo to link the aboveground traffic flow with underground tunnels. The ramps approach underground twin tunnels and then connect to them. Detailed monitoring instruments were set on the ground surface and nearby tunnels to monitor ground and nearby structures during excavation. The excavation details of one of the ramps are studied. The ramp has a unique spiral curvature in both vertical and horizontal directions. Ground surface instrumentations and monitoring outputs are discussed along ramp alignment before, during, and after passing of the shield machine through several sections. The transverse and longitudinal ground surface settlement data are mainly discussed and interpreted. Also, a numerical model of one of the ramps was created to investigate various influencing parameters and prospect the behaviour of ground-tunnels systems where field data are not available. The predicted results are also limited to tunnelling-induced ground displacement.

本文言語English
ホスト出版物のタイトルInformation Technology in Geo-Engineering - Proceedings of the 3rd International Conference ICITG 2019
編集者António Gomes Correia, Joaquim Tinoco, Paulo Cortez, Luís Lamas
出版社Springer
ページ718-729
ページ数12
ISBN(印刷版)9783030320287
DOI
出版ステータスPublished - 2020
イベント3rd International Conference on Information Technology in Geo-Engineering, ICITG 2019 - Guimarães, Portugal
継続期間: 2019 9月 292019 10月 2

出版物シリーズ

名前Springer Series in Geomechanics and Geoengineering
ISSN(印刷版)1866-8755
ISSN(電子版)1866-8763

Conference

Conference3rd International Conference on Information Technology in Geo-Engineering, ICITG 2019
国/地域Portugal
CityGuimarães
Period19/9/2919/10/2

ASJC Scopus subject areas

  • 地盤工学および土木地質学
  • 材料力学

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