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Proximity Works and carry-over method without ground improvement in the construction works by shield method

Journal Article:

Abstract

Chubu Electric Power Co. is promoting to introduce ultrahigh-voltage transmission line into Nagoya City in order to supply electric power to the central area of the city. As a part of this project, the company constructed the tunnel extending 1400m long in the central area of Nagoya City by shield method. In the area around the route of this tunnel, high buildings for residence stand close together, the traffic is heavy, and also four railway lines cross over the tunnel. The important points of this construction are curved surface works of the tunnel at the main intersections, crosscutting works at the major trunk railway lines, and shield carry-over method. The finished inside diameter of the tunnel is 3.6m and it is protected by the primary lining of 175mm in thickness and by the secondary one of 200mm in thickness. As the construction is performed at the intersections where traffic is heavy, or required curved surface works, it must be carried out without the process of ground improvement such as chemical injection. Therefore, excavation was performed through high strength stratum, utilizing the strength of soil itself. At the portion where the tunnel runs across main railway line, it was taken in  More>>
Authors:
Watanabe, Jun; Taki, Hideharu; Teraoka, Yoshiaki [1] 
  1. Chubu Electric Power Co., Inc., Nagoya (Japan)
Publication Date:
Jun 01, 1989
Product Type:
Journal Article
Reference Number:
NEDO-89-910419; EDB-89-146314
Resource Relation:
Journal Name: Denryoku Doboku; (Japan); Journal Volume: 218
Subject:
42 ENGINEERING; 24 POWER TRANSMISSION AND DISTRIBUTION; BASEMENT ROCK; SOIL MECHANICS; FOUNDATIONS; END EFFECTS; POWER TRANSMISSION LINES; TUNNELING; TUNNELS; TRAFFIC CONTROL; URBAN AREAS; UHV AC SYSTEMS; BUILDINGS; DISTANCE; GROUTING; SHIELDS; AC SYSTEMS; CONTROL; ENERGY SYSTEMS; MECHANICAL STRUCTURES; MECHANICS; POWER SYSTEMS; SUPPORTS; UNDERGROUND FACILITIES; 422000* - Engineering- Mining & Underground Engineering- (1980-); 200301 - Power Transmission & Distribution- AC Systems, EHV & UHV- (-1989)
OSTI ID:
5652905
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: ISSN 0386-2895; CODEN: DEDOD
Submitting Site:
NEDO
Size:
Pages: 39-46
Announcement Date:
Oct 01, 1989

Journal Article:

Citation Formats

Watanabe, Jun, Taki, Hideharu, and Teraoka, Yoshiaki. Proximity Works and carry-over method without ground improvement in the construction works by shield method. Japan: N. p., 1989. Web.
Watanabe, Jun, Taki, Hideharu, & Teraoka, Yoshiaki. Proximity Works and carry-over method without ground improvement in the construction works by shield method. Japan.
Watanabe, Jun, Taki, Hideharu, and Teraoka, Yoshiaki. 1989. "Proximity Works and carry-over method without ground improvement in the construction works by shield method." Japan.
@misc{etde_5652905,
title = {Proximity Works and carry-over method without ground improvement in the construction works by shield method}
author = {Watanabe, Jun, Taki, Hideharu, and Teraoka, Yoshiaki}
abstractNote = {Chubu Electric Power Co. is promoting to introduce ultrahigh-voltage transmission line into Nagoya City in order to supply electric power to the central area of the city. As a part of this project, the company constructed the tunnel extending 1400m long in the central area of Nagoya City by shield method. In the area around the route of this tunnel, high buildings for residence stand close together, the traffic is heavy, and also four railway lines cross over the tunnel. The important points of this construction are curved surface works of the tunnel at the main intersections, crosscutting works at the major trunk railway lines, and shield carry-over method. The finished inside diameter of the tunnel is 3.6m and it is protected by the primary lining of 175mm in thickness and by the secondary one of 200mm in thickness. As the construction is performed at the intersections where traffic is heavy, or required curved surface works, it must be carried out without the process of ground improvement such as chemical injection. Therefore, excavation was performed through high strength stratum, utilizing the strength of soil itself. At the portion where the tunnel runs across main railway line, it was taken in account that high strength stratum should remain as cover rock, and excavation was performed beneath the rock. At the end portion of shield, soil pile column with H-formed steel and steel bulk head were used as means of landslide protection. Thus, the ease operation and economic execution of works were realized. 1 ref., 14 figs., 2 tabs.}
journal = {Denryoku Doboku; (Japan)}
volume = {218}
journal type = {AC}
place = {Japan}
year = {1989}
month = {Jun}
}