To improve the hoisting efficiency of floor-standing two boom derrick and reduce the safety risk of transmission line construction,a hoisting path planning method for transmission line tower assembly construction based on A∗ algorithm was proposed.This method simplified the hoisting path planning problem in three-dimensional space to the path optimization problem in two-dimensional planes,horizontal plane and vertical plane,and studied the influence of swing amplitude and swing elimination time of hoisting parts on the hoisting path through the dynamic simulation.Based on the centrosymmetric modeling of the construction site environment,the hoisting path was planned based on A∗ algorithm and dynamic simulation conclusions.The engineering application results showed that this method could automatically plan the optimal hoisting path for balanced hoisting on both sides of the floor-standing two boom derrick in around 0.188 s,which could effectively shorten the hoisting time,and ensured the efficiency and safety of the line construction.
transmission linetower assembly constructionhoistingfloor-standing two boom derrickpath planningA∗ algorithm
NETL
NSTL
万方数据
