A telescopic support for detecting tunnel lining antenna by ground penetrating radar

Abstract

The invention discloses a telescopic support for detecting tunnel lining antenna by ground penetrating radar, which is applied in the field of detecting tunnel lining quality, and comprises a guide rod, a linear motion bearing, a connecting rod, a tension spring and a support fixing plate. The guide bar passes radially through the connecting bar and is fixed to the lower part of the connecting bar; A linear motion bear comprises a slide block and a U-shaped pipe clamp; The slider is movably sleeved on the middle section of the connecting rod; A U-shape pipe clamp is sleeved on that steel pipeof the guard rail of the work platform of the overhead car; The two ends of the tension spring are respectively connected with the U-shaped pipe clip and the guide rod through the hoist buckle; The bracket fixing plate comprises a base, a fixing plate and a positioning probe; The base is longitudinally provided with positioning holes and horizontally provided with bolt holes; The positioning probepasses through the bolt hole as well as the connecting rod; The ground penetrating radar antenna is fixed between a plurality of fixed plates, and the ground penetrating radar antenna is fixed between the fixed plates. The invention realizes that the height of the radar antenna is automatically adjusted with the change of the pressure through the tension spring, and is always in close contact with the tunnel lining, thus ensuring the accuracy of the radar data detection.

Description

technical field [0001] The invention belongs to the field of tunnel lining quality detection, and in particular relates to a retractable support for a geological radar detection tunnel lining antenna. Background technique [0002] Ground radar is widely used in the quality of tunnel lining at home and abroad. In order to ensure the accuracy of the data, the ground radar antenna needs to be closely attached to the lining surface during the detection process. At the same time, the radar antenna should move in the direction of the specified survey line. When the traditional geological radar inspection method measures the quality of the tunnel vault and arch waist lining, the inspector usually stands in the guardrail of the elevated vehicle, and then manually lifts the radar antenna, which requires the assistance of multiple workers. However, the detection road surface is often not smooth, and the long-term lifting work will lead to physical exhaustion of the detection personnel...

AI Technical Summary

Problems solved by technology

When the traditional geological radar inspection method is used to measure the quality of the tunnel vault and the lining of the arch waist, the inspector usually stands in the guardrail of the elevated vehicle, and then manually lifts the radar antenna, and requires the assistance of multiple workers

However, the detection road surface is often not smooth, and the long-term lifting work will lead to physical exhaustion of the detection personnel, the antenna position is erratic and cannot be closely attached to the lining surface, and the data collection work is greatly interfered

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