Manhole structure constructing method, manhole structure water-stop flexible joint and manhole structure
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Oct 21, 2004
app pub date -
Oct 14, 2003
filing date -
Jul 19, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A method is disclosed for constructing a manhole structure in which a manhole and a pipe are joined together by using a waterproof flexible joint. The joint includes a rigid cylindrical portion and a cylindrical flexible portion that has a covering portion to be fixed around an outer periphery of said pipe, a fixing portion fixed to an outer periphery of said rigid cylindrical portion and to be fixed to the manhole and a connecting portion connecting the covering portion to the fixing portion and made of an elastic material being capable of absorbing a displacement between the manhole and the pipe. The waterproof flexible joint is located around the outer periphery of the pipe, and the covering portion is fixed around the outer periphery of the pipe. Then, a filler for the manhole is poured around an outer periphery of the fixing portion.
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