作者: Takao Kamiyama , Yasuhiro Yokoshima
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摘要: A flexible tubular manhole liner (1) comprising a fabric layer (3) soaked with curable liquid resin (4) is inserted into (21); thi already equipped number of bolts (7) or sleeve nuts (55) protruding exposed from the surface, by means which it possible later to attach inner wall ladder steps and hose for injecting filler gas created between liner; method lining such liner.