Method of installing a multi-strand optical cable across a manhole

Abstract

The application discloses a kind of multi-beam optical cable transverse inspection well installation method, it is related to inspection well installation technical field.The application includes the following steps: step one: when excavating to the position of multi-beam optical cable, stop and measure size and optical cable position;Step two: all multi-beam optical cables are bundled, and a protective tube with a length of 30 cm longer than the width of the inspection well is used, half of the protective tube is cut open to serve as a wrapping body, the multi-beam optical cables are wrapped, and a waterproof roll is wound on the wrapping body using hot melting;Step three: the bottom plate of the cast-in-situ inspection well is constructed on the gravel cushion and the inspection well wall reinforcement is pre-buried, the wrapping body is placed in the inspection well wall when installing the well wall formwork, the concrete is poured after the formwork is installed, and the cast-in-situ inspection well is constructed;Step four: after the strength of the cast-in-situ inspection well meets the requirements, the formwork is removed, the backfilling is constructed, and the shaft is installed, and the backfilling is completed until the bottom of the shaft.The application solves the problem of multi-beam optical cable transversely crossing the inspection well during installation, and the optical cable is difficult to relocate or the relocation cost is too high.

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