Cabling waterproof device for internal force measurement data cables for tunnel lining structure and application method

Abstract

The invention discloses a cabling waterproof device for internal force measurement data cables for a tunnel lining structure and an application method. The device comprises a cylindrical pipe body; apipe cap is arranged at the upper end of the pipe body and comprises a cap body; the middle of the cap body is connected to a cap cover in a threaded mode; a bottom cover is connected to the lower part of the pipe body; a rubber sleeve sleeves the outer side of the bottom cover; a plurality of cable passing holes are formed in the positions, corresponding to the rubber sleeve, of the bottom cover;the lower side surface of the bottom cover is an inwards-concave cambered surface; and the upper side surface and the lower side surface of the bottom cover are each coated with a waterproof coating.The application method comprises the step that the specification and the number of required cabling waterproof devices are determined according to the mounting condition of a bar-mat reinforcement and the number of the measurement data cables in the lining structure. According to the cabling waterproof device and the application method, the problem that in the prior art, the problem that water seepage of data cables cannot be effectively prevented can be solved, the structure is reliable, and the use is convenient.

Description

Technical field [0001] The invention relates to the field of on-site monitoring of tunnel engineering, and in particular to a routing waterproof device and a use method of a data line for measuring the internal force of a tunnel lining structure. Background technique [0002] Tunnel engineering requires excavation of caverns in the rock and soil, and then assemble prefabricated segment linings in the excavated caverns, such as shield tunnels, or install molds to cast the primary lining on site, such as mountain tunnels. Because the geological and hydrological conditions of the tunnel traversing the stratum are complex and changeable, the load acting on the tunnel lining by the stratum cannot be accurately calculated in most cases, and the internal forces of the lining structure and the interaction between the stratum and the lining are complicated. In some tunnels, due to the structural safety, durability and possible fire and impact accidents in the tunnel, secondary linings are...

AI Technical Summary

Problems solved by technology

[0005] When the measurement data line is routed in the lining, there may be inconsistency in deformation between the concrete and the data line after being stressed, resulting in the formation of a water seepage channel on the contact surface between the data line and the concrete, and the measurement data line is wrapped by cement grout when the lining structure is poured. Inconvenient for long-term measurement data; currently the problem is not well resolved

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