Lap joint device for deformation measuring tube in deep soil and lap joint method

Abstract

The invention discloses a lap joint device for a deformation measuring tube in deep soil. The lap joint device for the deformation measuring tube in the deep soil comprises a supporting mechanism anda butt joint mechanism, wherein a supporting member comprises a supporting frame and a supporting platform; the butt joint mechanism is arranged on the supporting platform for accurate butt joint; thebutt joint mechanism comprises a control main machine, two sets of holding units for holding every two adjacent measuring tubes to be subjected to butt joint, a laser centering unit and a distance recognition probe, a controller is arranged in the control main machine, and the holding units, the laser centering unit and the distance recognition probe are separately connected with the controller.The invention further discloses a lap joint method. The lap joint method comprises the steps that the lap joint device is placed; the every two adjacent measuring tubes to be subjected to butt joint are held, and the measuring tubes to be subjected to butt joint are centered by the laser centering unit; vertical distance image information is acquired, and the actual distance between the measuringtubes to be subjected to butt joint is converted; and the holding units are controlled to move up / down to complete the butt joint. According to the lap joint device and the lap joint method, tube orifices of the measuring tubes can be subjected to accurate butt joint, and the risk of damage to the measuring tubes to be subjected to butt joint is reduced.

Description

technical field [0001] The invention belongs to the technical field of soil monitoring, and in particular relates to a lapping device and a lapping method for deformation measuring pipes in the deep part of soil. Background technique [0002] The monitoring of deep horizontal displacement of soil is an indispensable part in large-scale infrastructure projects such as foundation pits, slopes and bridges. However, the traditional manual inclinometer measurement process is greatly affected by human factors (such as: technicians' subjective judgment and experience), and it is difficult to achieve continuous monitoring under the influence of environmental accidental factors. It is precisely because of these factors that hinder the establishment of the early warning system. Automatic monitoring has the advantages of miniaturization, high integration, low maintenance cost, and mass production in factories. Accurate docking, large bending moment at the joint, wet equipment failure...

AI Technical Summary

Problems solved by technology

The above patents are all based on the pre-embedded measuring tube containing the measuring unit in the component to be measured or the soil. Any damage to the measuring tube will cause the monitoring system to fail to work normally due to the action of groundwater.

On the one hand, although the above-mentioned patents have adopted technical measures such as outer tubes and protective layers to prevent the core measuring tube from being damaged, during the process of embedding the measuring tube, it is difficult to ensure the absolute vertical of the borehole, and the measuring tube is continuously During the process of lengthening and putting into the borehole, it cannot remain completely vertical, and it will collide with and squeeze the side wall of the borehole

On the other hand, the measuring tube being installed and the measuring tube that has been connected into the borehole cannot be accurately aligned, so that there is an installation bending moment at the joint during the connection process, which can easily cause damage to the measuring tube at the joint

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