1. Transform the dredging depth


Based on the designed excavation length, the distance is increased, and the mechanical equipment in the construction process is reformed according to the needs. It is important to note that when the length of the cutter ladder increases, its lifting capacity needs to be calculated in time, and then select appropriate equipment and tools.


  1. Reform the hydraulic system and transmission of the cutter


The diameter and power of the dredger cutter are difficult to meet the specific requirements in actual construction, so it can be modified technically. Specifically, the original two double vane pumps and the transmission device can be removed, and the transmission device with the actual needs can be replaced. Suitable bearings and motors can be selected. After the transformation, the power and speed of the cutter can be effectively increased to meet the actual construction requirements.


  1. Adjust the combination


In the actual construction process, dredger and dredge pump and underwater pump can be an organic combination, so as to achieve the purpose of improving work efficiency. The combination of the dredge pump and the underwater pump can be scientifically adjusted according to actual needs. For example, two internal dredge pumps and one underwater pump can be combined to determine the best combination method based on scientific analysis of flow, energy consumption, efficiency, and other factors in the operation area, so as to effectively improve work efficiency and save construction costs.


  1. Optimize the layout of the discharge pipe


Dredger dredging operations, the excavated slurry needs to be discharged in time by using dredging pipes and transported to the corresponding location. In order to improve work efficiency, we can optimize the design of the discharge pipe. Specifically, the laying of the discharge pipe needs to comply with the following principles. First, the pipeline should not be too long. In order to shorten the pipeline length, it is necessary to scientifically analyze the specific situation of the construction site on the basis of ensuring the dredger’s normal operation, so as to obtain the best route of the discharge pipeline and minimize the distance between the connecting cards, so as to reduce the workload and improve the working efficiency. The second is to make sure that the discharge pipe keeps a straight line. In order to achieve this goal, the direction of each card can be marked, so as to effectively control its direction. For the areas where the straight line cannot be maintained, avoid laying the discharge pipe with excessive bending, because this kind of pipe is prone to silt, which directly affects the smooth development of the work. Third, try to reduce the height of the pipeline. This helps the slurry to flow naturally, reduce the difficulty of work, improve work efficiency. To be specific, the pipeline laying shall be arranged according to the design height of the construction area, so as to ensure that the pipeline is always lower than the construction height.


  1. Optimize the excavation mode


In the concrete construction process, the cutter suction dredger mostly adopts the method of layered excavation construction, which has the advantage of effectively ensuring the stability and safety of the hull and effectively reducing the time for the staff to move anchors. In the specific construction process, the staff can choose the required excavation method according to the construction needs and site conditions, which need to be selected in combination with the conditions of the construction site soil. Generally speaking, the channel soil is soft on the top and hard on the bottom, so the excavation method of large layers can be chosen scientifically to effectively improve work efficiency.