Accurate docking method for ship chamber of ship lift under fluctuation of water level of ship chamber

Abstract

The invention discloses an accurate docking method for a ship chamber of a ship lift under fluctuation of the water level of the ship chamber. The method comprises the following steps: step 1, after the ship chamber stops, acquiring a water level elevation change range s1-s2 of a lock head one hour before the stopping moment and an average one-hour water level change value delta h of a corresponding approach channel, and when the one-hour water level change meets the conditions that s2-s1 is smaller than or equal to assumed delta h and the delta h is smaller than or equal to the assumed delta h, performing step 2; step 2, acquiring a ship chamber stopping position elevation s, comparing relations between a predicted lowest water level h1 of the lock head, a predicted highest water level h2, maximum allowable misloading water depth x<lower> and x of the ship chamber and the ship chamber stopping position elevation s, if the condition that the s is larger than or equal to h2-x and smaller than or equal to h1+x<lower> is met, executing step 4, and if not, executing step 3; step 3, adjusting the position of the ship chamber, stopping the ship chamber after running by a distance L again, enabling the ship chamber to run to the docking position again, checking the stop position of the ship chamber, and when the condition that the s is larger than or equal to h2-x and smaller than or equal to h1+x<lower> is met, executing the step 4; and step 4, docking the ship chamber with the lock head. The method realizes the purpose of reducing the large change amplitude of the water level of the ship chamber in the ship lift docking period, and improves the accuracy of the docking position of the ship lift.

Description

technical field [0001] The invention relates to the technical field of ship lift operation, in particular to a method for accurately docking a ship lift compartment under fluctuations in the water level of the ship compartment. Background technique [0002] During the operation of the ship lift, changes in the water level of the upstream and downstream approach channels have a great impact on the docking operation of the ship lift. During the parking process of the ship box, the parking position of the ship box is inaccurate due to the change of the water level. During the water connection process between the ship box and the lock head, due to the excessive fluctuation of the water level change, it is easy to cause the failure of the docking of the ship box. Therefore, it is reasonable to adjust the position of the ship box , coping with the water level fluctuation of the approach channel is a problem that should be solved in the operation of the ship lift. [0003] In the ...

AI Technical Summary

Problems solved by technology

The two methods can solve the problem of the water level in the ship’s compartment when the ship lift is docked, but there are some problems in both of them. The main manifestations are: the construction of such projects increases the operational complexity, affects the operational efficiency, and increases consumption on the basis of the original vertical ship lift. The control of energy facilities or auxiliary lock chambers, while the structure is complex and the engineering investment is large

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