An automatic monitoring method for bridge pushing based on stakeout robot

Abstract

The invention discloses an automatic monitoring method for bridge pushing based on a stakeout robot, which comprises the following steps: selecting a monitoring point of the bridge, and fixing a reflective patch at the point; importing a BIM model into the stakeout robot, and selecting several monitoring points according to the monitoring points The stakeout process point; the stakeout robot sets up a station on the construction coordinate system and aims at the reflective patch for stakeout; during the jacking process, observe the lateral deviation displayed by the stakeout robot's handbook, and issue an early warning when the deviation exceeds the limit. The invention automatically tracks the jacking trajectory of the bridge through the BIM model and the lofting robot, and monitors the jacking deviation; the problem of determining the limit value is solved through the error conversion between the lateral deviation and the handbook of the lofting robot; Several process points have realized the purpose of real-time monitoring of the jacking deviation; the use of the lofting robot in the monitoring of bridge jacking has realized the integration of measurement technology and BIM technology, simplified work procedures and reduced labor costs.

Description

technical field [0001] The invention relates to the fields of measurement technology and BIM technology, in particular to an automatic monitoring method for bridge pushing based on a lofting robot. Background technique [0002] The bridge jacking method refers to the method that when the bridge crosses the existing line, the beam body is built in sections on one side of the line, and then pushed with a jack to make it pass through the line. The advantage of jacking construction is that no large machinery is required, and only the completed beam section is pushed along the axis through the jack cycle. Therefore, the key to the quality control of bridge jacking construction is to ensure that the lateral displacement of the bridge during the jacking process is within the allowable error range. [0003] The traditional monitoring method of bridge pushing is the total station measurement method, which is divided into relative method and absolute method. The relative measurement...

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Problems solved by technology

The above two methods have their own shortcomings. Although the relative method is intuitive, the erection point of the total station must be at the same height as the bridge, and the high-altitude observation operation is dangerous, and once the observation point is occupied, the work must be suspended; although the absolute method can measure Coordinates, but it must be compared with the theoretical point calculation, which cannot reflect the deviation of the push push in real time

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