Down-hanging bridge crossing method for crossing river with channel during channel running

Abstract

The invention discloses a down-hanging bridge crossing method for crossing river with a channel during channel running, when a ferry sailing along a canal reaches the position where the channel crosses with the river, the ferry is firstly guided into a ship bearing box, a crane drives a ship lifting support plate and the ship bearing box, the ferry ascends, after a rigid hanger at the top of the ship bearing box is flush with a lifting point of a moving trolley, the rigid hanger is fixed, the ship bearing box is pulled and conveyed to the opposite bank of a river channel by the moving trolley,the ship lifting support plate is lifted by the ship lifting machine on the opposite bank, the ship bearing box is conveyed to the ship lifting support plate by the moving trolley, the ship bearing box is connected with a lifting pull rope of the ship lifting machine at the opposite bank, the connection between the moving trolley and the rigid hanger of the ship bearing box is removed, the ship lifting support plate, the ship bearing box and the ferry are driven by the lifting machine to descend to a water level height in a target channel. The ferry is guided out of the ship bearing box and can continuously sail. According to the invention, the method is convenient to implement, and is less influenced by the erosion and siltation change of the Yellow River channel; and the double-line arrangement is adopted, so that the cyclic transfer of the fleet can be achieved, the manufacturing cost is low, and the operation and the maintenance are convenient.

Description

technical field [0001] The invention relates to a waterway infrastructure construction project, in particular to an underhanging bridge crossing method for crossing a river intersecting a waterway when the waterway is in operation. Background technique [0002] The Beijing-Hangzhou Grand Canal is the ancient canal with the longest mileage and the largest project in the world, and also one of the oldest canals. Together with the Great Wall and Karez, it is called the three great projects of ancient China. It is a great project created by the working people in ancient China . The Grand Canal starts from Yuhang (now Hangzhou) in the south, ends in Zhuojun (now Beijing) in the north, passes through the four provinces of Zhejiang, Jiangsu, Shandong, and Hebei, and the two cities of Tianjin and Beijing, and runs through the five major water systems of the Haihe River, the Yellow River, the Huaihe River, the Yangtze River, and the Qiantang River. , with a total length of about 179...

AI Technical Summary

Problems solved by technology

The upper-span plan of the aqueduct is technically feasible and has similar experience. However, because there is water along the entire line of the aqueduct, the high-level waterway of the Grand Canal and the large tonnage of ships will lead to an overly large aqueduct structure and high cost

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