Early Warning Method for Collision During Offshore Piling Construction

Abstract

An early warning method for collision during offshore pile driving construction, comprising: acquiring real-time data of piles during the piling process, and processing the data to obtain pile parameters; pre-judging the pile body, and screening out the pile pairs that may collide; The three-dimensional space equation of the pile body is established for the colliding pile pairs; the distance function between the pile pairs is constructed according to the three-dimensional space equation, and a nonlinear programming model is established; the nonlinear programming model is solved to obtain the smallest possible collision between the pile pairs. distance; when the minimum distance is less than the preset safety distance, a collision warning is issued. By combining the spatial geometry algorithm, the collision detection technology and the nonlinear programming intelligent algorithm, the invention simplifies the collision detection process, improves the calculation efficiency, saves the calculation time, realizes the automatic early warning when the distance between the pile pairs exceeds the preset safety distance, and avoids the Engineering losses due to warnings issued after the physical collision of the piles.

Description

technical field [0001] The invention relates to the fields of collision detection algorithms and machine learning in the field of computer graphics, in particular to a method for early warning of collisions during construction of offshore piles. Background technique [0002] With the development of my country's marine industry, the number of offshore projects continues to increase. In deep-water wharves and sea-crossing bridges far away from the coast, as well as some new underwater structures such as pile-supported offshore oil platforms, offshore wind power, etc., pile support is very important. Pile is an important foundation of engineering construction, and the accuracy of piling directly affects the quality of subsequent engineering construction. The offshore piling construction area is far from the land, the working surface is large, and the construction is very difficult due to the influence of the climate. Compared with the land piling, it is more easily affected by ...

AI Technical Summary

Problems solved by technology

[0004] However, the simple spatial geometry algorithm has many types and is more complicated, such as judging the positional relationship between the centerlines of two cylinders (collinear, parallel, intersecting, different planes) and the position of the common vertical line and the centerlines of the two pipelines. Collision detection, however, when the central axis of the pipeline is on different planes and the two feet of the common vertical line fall inside the line segment at the same time, the judgment conditions of the algorithm are not accurate enough; The definition and judgment conditions of end-face intersection are not accurate enough; in addition, each method has many situations and has its shortcomings, and it is prone to missing calculations or some unconsidered situations, and these methods are mostly for the calculation of cylindrical space distances. The complexity of different pile types will rise rapidly, and a unified process cannot be formed

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