Tunnel concrete water stop anti-permeability performance detection equipment

By designing a combination of a mobile load-bearing structure, a water injection structure, and a contour-following joint-making structure, the problem that existing equipment cannot simulate water seepage in tunnel joints has been solved, enabling accurate testing of the water-stopping and seepage-resistant performance of tunnel concrete.

CN122193053APending Publication Date: 2026-06-12BEIJING NO 4 MUNICIPAL CONSTR ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING NO 4 MUNICIPAL CONSTR ENG
Filing Date
2026-04-27
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing concrete waterproofing and seepage resistance testing equipment cannot simulate tunnel joint seepage and cannot accurately test the waterproofing and seepage resistance performance of concrete in real-world scenarios.

Method used

A device for testing the water-stopping and seepage-resistant performance of tunnel concrete was designed. By coordinating a moving load-bearing structure, a water injection structure, and a contour-forming joint structure, the device simulates the actual situation of concrete filling gaps in a tunnel and uses a humidity sensor to detect the water-stopping effect.

Benefits of technology

It enables the detection of the water-stopping and seepage-resistant performance of concrete in actual tunnel scenarios, simulates the filling of tunnel gaps, and improves the accuracy and reliability of the detection.

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Abstract

The application relates to the technical field of material detection, in particular to a tunnel concrete water-stopping and anti-permeability performance detection equipment, which comprises a base and further comprises: a moving bearing structure connected with the base, wherein the moving bearing structure comprises a transverse movement linkage mechanism, and a sample supporting mechanism is movably arranged on the transverse movement linkage mechanism; a water injection structure connected with the base; a profiling joint making structure connected with the base, wherein the profiling joint making structure comprises a lifting butt joint mechanism, a gas charging and discharging mechanism, a butt joint head and a pipe joint head, the pipe joint head is connected with the gas charging and discharging mechanism, the pipe joint head is connected with a porous pipe, the porous pipe is fixedly connected with a blocking head, and the blocking head and the pipe joint head are connected with a capsule. The moving bearing structure, the water injection structure and the profiling joint making structure are cooperatively arranged, so that the concrete sample block can be subjected to anti-permeability performance detection, and the situation that the concrete is filled into the water seepage gap of the tunnel wall can be simulated, so that the water-stopping and anti-permeability performance of the concrete in the actual scene can be detected.
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