Development of flexible segment for Wrapping Method
The shield tunneling isolation system to make use of Wrapping Method's high waterproofing
Tetsuji Shimada, Takeshi Sakae and Yukio Haga
Wrapping Method is developed for preventing the leakage into the tunnel under high water pressure at great depth and to elongate its life. It uses the high quality and durable waterproofing sheets and the perimeter of the segmental linings is wrapped with them. This time, we have developed the flexible segment for Wrapping Method to make use of its high waterproofing. We have confirmed the sufficient performance of this with comprehensive experiments using a test segment of 2800mm in its outer diameter. This report describes the outline of the flexible segment for Wrapping Method and the result of the tests .
keywords: |
shield tunneling, wrapped lining method, waterproofing sheets, flexible segment |
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