DESIGN FOR INNER PROTECTION OF CULVERT SYSTEMS AND METHOD OF CARRYING OUT RECONSTRUCTION WORKS WITH IT (VERSIONS) Russian patent published in 2017 - IPC F16L55/165 F16L55/163 B29C53/78 

FIELD: construction.

SUBSTANCE: structure consists of sections 2, each of which contains a reinforcement framework 3 corresponding to the cross-section of the portion 1 to be reconstructed. A profile plastic tape 4 and a profile connecting device 11 are wound in a spiral to the framework 3. The profile of the tape 4 and the connecting device is shown in the figures. To implement the method, the geometric characteristics of the portion 1, the dimensions of the framework 3, the number of sections 2 in the structure are determined. On the shore platform 20, the frameworks 3 are assembled. Coaxially with the portion 1, a mounting-docking platform 21 is installed, on which mounting operations are carried out step by step with successive movement of the frameworks 3 to it from the platform 20. On each framework 3, the tape 4 and the device 11 forming the section 2 with the framework 3 are successively spirally wound. According to the first version, the structure in the form of a pipe 19 is formed directly in the portion 1 from its end to the beginning, for which, after adjustment, each two sections 2 are docked, disconnected, and then, by means of the winch 22, each section 2 is installed at the end of the portion 1 and rigidly connected. Alternatively, after adjustment, the sections 2 are docked and rigidly connected, forming a structure in the form of a pipe 19 directly on the platform 21, and by means of the winch 22 is mounted on the station 1. For each version, the volume between the inner surface of the portion 1 and the outer surface of the pipe 19 is filled with a polymer-cement composition.

EFFECT: increasing the structure strength, ensuring the monolithic character of the structure and the portion to be reconstructed.

10 cl, 19 dwg