Railway ballastless track bed steel bar resistance testing method

Abstract

The invention discloses a railway ballastless track bed steel bar resistance testing method which comprises the following steps: firstly, connecting upper and lower steel bar frames in a ballastless track bed slab and erection bars for connecting the upper and lower steel bar frames by using insulating clamps, horizontally penetrating measuring iron wires into the upper and lower steel bar framesrespectively, enabling the measuring iron wires to be tightly attached to all longitudinal steel bars in the layer respectively, and reserving a measuring end; two measuring end buttons of a direct-current 500V megger are respectively connected with a copper wire, one measuring end button is connected with a probe, and the other measuring end button is connected with a measuring iron wire; and shaking the megger, enabling a detector to respectively touch each transverse steel bar and each erection bar of the upper-layer or lower-layer steel bar frame to be detected by the probe, and recordingresistance values of the transverse steel bars and the erection bars. The detection method provided by the invention is simple, is beneficial to field construction, saves time for ballastless track bed slab construction, and improves the construction efficiency of the ballastless track.

Description

technical field [0001] The invention relates to a resistance measuring method, in particular to a railway ballastless ballast bed reinforcement resistance testing method. Background technique [0002] With the improvement of people's quality of life, the number of people traveling by train and the amount of material transportation are also increasing. In order to meet the ever-increasing transportation requirements, the same railway line can only adopt the method of continuously increasing the speed of trains and increasing the number of trains. Therefore, the problem brought about is that the service life of railway lines is reduced, and the number of times that lines need to be repaired is increasing, but the time that can be used for maintenance is getting shorter and shorter. [0003] With the continuous development of railway technology and the advent of new building materials, ballastless tracks have begun to be applied to railway lines. [0004] Ballastless track bed...

AI Technical Summary

Problems solved by technology

During the measurement, every two steel bars are connected into a group for detection. Since there are more steel bars in each plate, the number of times to detect the connected steel bars increases, and the manpower and material resources required for the detection are increased, and the time is long, which seriously affects the construction efficiency of the ballastless track.

Images