Method for detecting and evaluating irregularity of temporary transportation track of overlong TBM (Tunnel Boring Machine) tunnel under construction

Abstract

The invention provides a method for detecting the irregularity of a temporary transportation track of an overlong TBM (Tunnel Boring Machine) tunnel under construction, which is applied to a track irregularity detection evaluation system and aims to solve the problem of low detection capability of track irregularity detection in the prior art, and comprises the following steps of: (1) running a rail train with a sensor on an initially paved temporary track according to different speeds; acquiring amplitudes of vehicles passing through track joints under different vehicle speed working conditions as initial values, and establishing a standard database; (2) acquiring data such as speed, amplitude, mileage and the like during operation of the rail train, comparing and analyzing the data with a standard database, and evaluating the irregularity of each contact, each section of rail and each kilometer of rail; and (3) reminding a driver of vehicle deceleration through a vehicle-mounted display device, and reminding a manager of temporary track maintenance through a background data report. The method has the advantages that real-time detection and evaluation can be achieved through double-track measurement, manual inspection is reduced, the detection frequency is improved, and the temporary railway vehicle driving risk is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of safe transportation of super-long TBM tunnel materials, in particular to a method for detecting irregularities of temporary transportation tracks of super-long TBM tunnels under construction. Background technique [0002] Tunnel engineering construction has gradually developed towards the direction of ultra-long-distance construction, and TBM is more and more widely used as a rapid construction equipment for long tunnels. The materials and personnel required during the TBM tunnel construction must be transported to the working face by rail trains, but most of the tunnel constructions erect temporary tracks for vehicle transport, and the temporary tracks are mainly used as tracks for material transport during the construction process. The speed is low, and the laying quality requirements are lower than that of the track during railway operation, but the irregularity of the temporary track also directly aff...

AI Technical Summary

Problems solved by technology

The materials and personnel required during the TBM tunnel construction must be transported to the working face by rail trains, but most of the tunnel constructions erect temporary tracks for vehicle transport, and the temporary tracks are mainly used as tracks for material transport during the construction process. The speed is low, and the laying quality requirement is lower than that of the track during railway operation, but the irregularity of the temporary track also directly affects the transportation efficiency of the rail train, and even production safety, such as accidents such as the derailment of the rail train

[0003] Since the temporary track is far inferior to the laying quality of railway tracks, the existing track detection methods cannot directly detect and evaluate the irregularity of the temporary track. Meter rulers are used to determine the height error of the track joints, and most of them are manually inspected from time to time during use, which is not only inefficient, but also has poor detection results. It cannot detect the unevenness of the track in a timely and effective manner, which directly affects the rail vehicles. safe operation of

[0004] In the published patent literature, the application number is 2021104610158, and the patent named track irregularity detection and evaluation system, method, electronic equipment and rail vehicle discloses a method of obtaining track irregularity value through three-dimensional data of each measurement point The method, the design includes multiple electronic modules, and the degree of automation is high, but the applicant believes that this technology has the disadvantages of huge data and high cost, and is not suitable for general application, especially not suitable for the detection of irregularity of temporary transport tracks in TBM tunnels

After all, the characteristics of the temporary transportation track in the TBM tunnel are: 1. The chief factory director, if summed up at a single point, the amount of data is large and the processing cost is high, and one of the characteristics of the temporary track is to reduce the cost under the premise of ensuring transportation; 2. The data in the basic data pool is too large, and the database generation time is long, which does not meet the characteristics of short-term assembly of temporary tracks and production as soon as possible

[0005] To sum up, that is to say, the main problem to be solved first is that there is an irregularity measurement technology that is too expensive and not suitable for temporary tracks, and conventional technology cannot guarantee the safety of TBM tunnel construction material transportation

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