INSPECTION WELL MANHOLE Russian patent published in 2011 - IPC E02D29/14 

Abstract RU 2425925 C1

FIELD: construction.

SUBSTANCE: in a manhole of an inspection well, comprising a support ring and a cover with a reinforcement frame, according to the invention, the reinforcement frame of the cover is arranged in the form of a reinforcement grid made of coupled longitudinal and transverse reinforcing bars and a framing ring, made of rolled metal of periodical profile, besides, the longitudinal reinforcing bars are arranged inside the framing ring, and the transverse reinforcing bars above the longitudinal bars and the framing ring, and is filled with a non-metal binder of resin, hardener, plasticiser and inert filler, besides, ratio of resin, hardener and plasticiser makes 10:1:0.9 accordingly, at the same time ratio of inert filler and resin makes 6.75:1 accordingly, and ratio of inert filler and resin with hardener and plasticiser makes 5.46:1.

EFFECT: lighter structure of a manhole, increased impact strength of the structure, cheaper manufacturing, reduced labour expenditures, convenience of operation.

2 cl, 3 dwg

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RU 2 425 925 C1

Authors

Primakov Mikhail Alekseevich

Dates

2011-08-10Published

2010-02-24Filed