Nondestructive detection device for tunnel linings

Abstract

The invention relates to a nondestructive detection device for tunnel linings. The nondestructive detection device comprises universal casters with brakes, a worktable, a distance fine adjustment assembly, a height adjustment assembly, an automatic knocking assembly and a peripheral upper computer. The universal casters are mounted under a base of the worktable. The nondestructive detection device can be fixed onto a railway engineering vehicle by the aid of steel pipes and scaffold right-angle fasteners when about to work, the railway engineering vehicle and the carried nondestructive detection device can be dragged by a locomotive to move along tunnels, the tunnel linings can be knocked by the automatic knocking assembly of the nondestructive detection device, knocking sound waves can be converted into electric signals by a microphone, knocking sound signals can be acquired and analyzed by the upper computer, tunnel health information of structural parameters, cavities and the like of the tunnel linings can be obtained, and accordingly the tunnel linings can be nondestructively detected. The nondestructive detection device has the advantages that the nondestructive detection device is in a modular design and is convenient to assemble and disassemble, and requirements on 'skylight time' and requirements of detection on different tunnel linings can be met; the nondestructive detection device is easy to operate and high in automation degree, detection efficiency and precision and cost performance, conditions of the tunnel linings can be quickly judged after the tunnel linings are detected, and the like.

Description

technical field [0001] The invention relates to a non-destructive testing device for tunnel lining, in particular to a device that automatically taps the lining surface of an operating railway tunnel, collects sound signals for analysis, and obtains structural parameters, cavities, etc. of the railway tunnel lining by analyzing the audio signals. Tunnel health status information, a device for non-destructive testing of linings in operating railway tunnels. Background technique [0002] The health status of operating railway tunnels is related to the safety of railway track transportation, so regular and comprehensive testing of railway tunnel lining plays a vital role in the safe transportation of railways. In particular, the lining of railway tunnels that have been in operation for many years may have water leakage, lining deformation, voiding at the back of the lining, shallow voids, voids, and blocks, which need to be inspected. At present, the methods for testing the li...

AI Technical Summary

Problems solved by technology

At present, the methods for testing the lining of railway tunnels in operation can be divided into two categories: destructive testing and nondestructive testing. Destructive testing not only destroys the lining structure of the tunnel, but also has the disadvantages of slow detection speed and poor representativeness; various nondestructive testing methods can be used in The test object can be detected more accurately without destroying the test object. However, when the operating railway tunnel encounters some special environments or special needs, due to the limitations of some of the non-destructive methods, such as manual knocking for early tunnel lining detection , low detection efficiency, poor objectivity, high labor intensity and other disadvantages

With the increasing number of operating railway tunnels, in order to ensure the safety of operating railway tunnels, it is necessary to develop a device that meets the requirements of non-destructive testing of the lining of operating railway tunnels, realize automatic testing of operating tunnels, and solve the problem of high labor intensity and low detection efficiency of manual percussion detection. Low and poor effects and other issues

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