Radar detection device for tunnel initial construction

Abstract

The invention discloses a radar detection device for tunnel initial construction. An automatic transverse moving, lifting and rotating device is designed on a trolley, so that a tray device installedwith a detection radar is conveyed onto a tunnel initial construction surface, and can walk on the tunnel initial construction surface; automatic full-coverage detection of the tunnel initial construction surface is completed, instead of manual work; the working efficiency is increased while the personnel security is ensured; and measurement data is steady and reliable. Rotation motion of the detection radar is realized by adoption of a swinging rod mechanism in the invention; the support area of a long rod used for supporting the tray device is large; the strength is relatively high; the traydevice is prevented from shaking; a double-layer structure is adopted in the radar tray device in the invention; the lower layer can swing; therefore, the device is suitable for radian change of a tunnel surface; the upper layer is supported by adoption of a piston cylinder; flexible support of the detection radar is realized; a gas pressure sensor is additionally arranged at the gas hole position of the piston cylinder; whether a radar lifting device is appressed to a detection surface or not can be monitored in real time; and thus, detection data is steady and reliable.

Description

technical field [0001] The invention relates to the technical field of tunnel radar detection, in particular to a radar detection device for tunnel initial construction. Background technique [0002] During the construction of the tunnel, the lining needs to be inspected. However, due to the non-standard construction technology and ineffective supervision at this stage, many quality problems such as insufficient concrete thickness, uncompacted surrounding rock, and water leakage from holes have occurred. Radar is usually used to monitor the tunnel. Lining is used to obtain data, and the obtained data is analyzed to obtain the quality of tunnel lining; at present, it is relatively easy to detect the second lining invert and side wall, but it is relatively difficult to detect the vault and arch waist; due to the vault and The arch waist is high from the ground, and it is necessary to weld the shelf on site. It is dangerous for the staff to work at high altitude, and during the...

AI Technical Summary

Problems solved by technology

[0002] During the construction of the tunnel, the lining needs to be inspected. However, due to the non-standard construction technology and ineffective supervision at this stage, many quality problems such as insufficient concrete thickness, uncompacted surrounding rock, and water leakage from holes have occurred. Radar is usually used to monitor the tunnel. Lining is used to obtain data, and the obtained data is analyzed to obtain the quality of tunnel lining; at present, it is relatively easy to detect the second lining invert and side wall, but it is relatively difficult to detect the vault and arch waist; due to the vault and The arch waist is high from the ground, and it is necessary to weld the shelf on site. It is dangerous for the staff to work at high altitude, and during the inspection process, the loader needs to constantly adjust the height to cooperate with the inspection; often due to the shelf or loading The rising height of the machine is not enough, the radar antenna is separated from the detection surface, and the detection cannot be kept in contact with the detection surface or at a very close distance, resulting in large errors in the detection data; moreover, in order to enable the people working at heights to cooperate effectively with the loader In the process of the loader moving forward, one person is usually required to direct it. The detection of the lining is dangerous for high-altitude operations, time-consuming and labor-intensive, and the workload is large. It will have a certain impact on the collected data and the detection efficiency is low.

[0003] Existing equipment or methods are difficult to realize the automation and high efficiency of detecting tunnel lining quality. It is necessary to develop a tunnel lining radar detection mechanism with higher efficiency and better performance. Therefore, it is necessary to design a new type of mechanical device for tunnel lining radar detection. device to solve the above problems

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