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高密度配筋の二次覆工を有する大断面かっ急曲線シ-ルド
| 题名： | 高密度配筋の二次覆工を有する大断面かっ急曲線シ-ルド |
| 正文语种： | 中文 |
| 作者： | 北村昌文 田辺和也 増田昌昭 |
| 作者单位： | 前田建設工業(株)東京土木支店 立会川作業所 |
| 关键词： | Large Size Cross Section Sharp Angle Curve Filling Material for Extra Excavation Segment with Bag Close Construction High intensity in distribution of reinforcing bars of the secondary lining structure |
| 摘要： | This project is to construct 980m sewer tunnel by using 10.3m diameter slurry shield machine.The launching vertical shaft is located at the lower reaches of the Tachiaigawa River at Shinagawa ward of Tokyo, and the reaching point is Katsushima pumping station.There are 4 sharp angle curves with radius of 30m in the tunnel route, and it includes the S shape curve with radius of 30m just before the reaching point.Furthermore, the S shape curve part is located very close to the foundation of bridge pier of Tokyo Metropolitan Highway, and the distance is only about 2m.The second characteristic of this project is a high intensity in distribution of reinforcing bars of the secondary lining structure.As a basic plan, in order to make efficient use of the tunnel as two main lines of drainage water,this secondary lining structure has been constructed to divide the tunnel into top portion and bottom portion.Since the internal pressure is acting at the inner space of the tunnel, necessary reinforcing bars have been installed to make the structure resists the internal water pressure. |
| 会议日期： | 201309 |
| 会议举办地点： | 西安 |
| 会议名称： | 第七届中日盾构隧道技术交流会 |
| 出版日期： | 2013-08-31 |
| 母体文献： | 第七届中日盾构隧道技术交流会论文集 |
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