A monitoring device for internal deformation and fine particle loss of track subgrade

Abstract

The invention discloses a monitoring device for internal deformation and fine particle loss of a track subgrade, and relates to the field of monitoring devices; it includes an internal damage monitoring device arranged in the ballast layer of the roadbed, and the internal damage monitoring device is connected with a resistance collector through a wire. The resistance collector is wirelessly connected with a resistance signal receiver. The device for monitoring the internal deformation and loss of fine particles of the rail subgrade provided by the present invention can realize real-time and continuous monitoring of the deformation and loss of fine particles in the railway subgrade under rail traffic load under remote conditions, and is economical and convenient, and has high practical value.

Description

technical field [0001] The invention relates to the technical field of monitoring equipment, in particular to a monitoring device for internal deformation and fine particle loss of a track subgrade. Background technique [0002] In recent years, with the rapid development of rail transportation, the speed of trains and axle loads are constantly increasing, which greatly increases the burden on the railway subgrade, which causes the deformation of the railway subgrade to exceed expectations, which not only affects the train's Normal driving during operation also increases the cost of roadbed reinforcement and maintenance in the later period. At the same time, with the seepage of rainwater, the fine particles in the roadbed are washed away, which greatly affects the stability of the roadbed under the load of rail traffic. Therefore, timely monitoring of the internal deformation of the railway subgrade and the loss rate of internal fine particles, and reinforcement when a cert...

AI Technical Summary

Problems solved by technology

Today's monitoring methods are mainly subgrade surface settlement monitoring, and there are few monitoring methods for internal deformation of the subgrade, and the existing monitoring methods have a certain hysteresis. There are few methods for monitoring the deformation of the filling soil in the subgrade and the monitoring of the internal stress transfer of the subgrade; , it is difficult to monitor the sudden increase of internal deformation of the subgrade, which will bring great safety hazards to the safe running of trains

However, there are almost no monitoring methods for the loss rate of fine particles inside the roadbed, which brings great hidden dangers to the safe running of trains.

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