FINAL JOINT OF IMMERSED TUNNEL AS WELL AS PREFABRICATION METHOD AND INSTALLATION METHOD

PROBLEM TO BE SOLVED: To provide a final joint of an immersed tunnel as well as a prefabrication method and an installation method.SOLUTION: A final joint includes two end surfaces connected with installed adjacent tube sections; the two end surfaces are both tilted surfaces, so that the longitudina...

Full description

Saved in:
Bibliographic Details
Main Authors ZHANG ZHIGANG, LIU XIAODONG, JI HAI, CHENG QIAN, LIN MING, LIU LINGFENG, WANG XIAODONG, LI YI, SU HUAIPING, LIN WEI, DENG KE, WANG JIAN, GAO JIBING, LV YONGGANG, YIN HAIQING
Format Patent
LanguageEnglish
Japanese
Published 18.10.2018
Subjects
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
UNDERGROUND OR UNDERWATER STRUCTURES
Online AccessGet full text

Cover

More Information
Summary:PROBLEM TO BE SOLVED: To provide a final joint of an immersed tunnel as well as a prefabrication method and an installation method.SOLUTION: A final joint includes two end surfaces connected with installed adjacent tube sections; the two end surfaces are both tilted surfaces, so that the longitudinal profile of the final joint along an installation direction is of an inverted trapezoid structure; and the final joint further may be of a structure with a first immersed tube section and a second immersed tube section which are connected with each other. The final joint of an immersed tunnel is simple in structure, convenient to control and relatively high in precision, thereby reducing lots of open sea diving work and lowering a risk of installation quality defects; as prefabrication procedures are simple, the final joint may be prefabricated in a land factory and then transported to the site, thereby reducing influence of weather conditions on construction; a body structure of the final joint is prefabricated in the factory, and then the overall structure is transported to the site; water stop systems realize quick water stop, thus forming a dry construction environment; and therefore, the influence of weather variation on a construction process may be reduced, and a quality risk may be lowered.SELECTED DRAWING: Figure 1 【課題】沈埋トンネルの最終継手、プレハブ工法及び設置方法を開示する。【解決手段】前記最終継手は、既設隣接函と接続される２つの端面を備えている。前記最終継手の設置方向に沿った縦断面が逆台形形状となるように、２つの前記端面は、両方とも傾斜面である。当該最終継手として、相互に接続された第１沈埋函及び第２沈埋函という構造を採用してもよい。当該沈埋トンネルの最終継手は、構造が簡単で且つ制御が容易であり、精度が高く、その結果、大量の外海潜水作業が省かれ、設置品質の欠陥リスクが低減される。地上工場で予め製作してから現場に搬送することができ、プレハブ工程が簡単であり、これにより、気候条件の施工に対する影響が軽減される。工場内で最終継手の本体構造のプレハブを完了し、それから現場まで当該構造全体を搬送し、さらに、止水システムを介して迅速な止水を実現し、乾燥した施工環境を形成することにより、建設工程に対する気候変動の影響が低減されると共に、品質リスクが低減される。【選択図】図１
Bibliography:Application Number: JP20180017702