The port channel dredging construction is mainly divided into two links, cofferdam construction, and trench excavation construction. Each link is introduced separately below.
1. Cofferdam construction
Cofferdam construction is a very important part of the dredging construction of port waterways, especially in the process of cofferdam construction for internal waterways, it is necessary to choose an area with better jumper terrain, so as to effectively improve the dredging and filling construction. Effect. At the same time, it is necessary to use manual methods to excavate the filling layer and clay layer as much as possible to lay a solid foundation for the subsequent layering treatment and do a good job in the subsequent rolling work to ensure the smooth completion of the cofferdam construction.
2. Grooving construction
The dimensions of the dig and the depth of the grooving must be determined before the construction of the grooving.
- Determining the Dimensions of the Dig
In the process of excavation construction, it is necessary to ensure that its size is within the allowable error range of the project and try to control it within 5m. In addition, during the excavation process, it is necessary to do a good job of accurate measurement and draw a cross-sectional view of the channel on this basis. Through the analysis of the graphics, the appropriate digging position can be determined. Of course, if a leak is found, it can also be remedied according to the cross-sectional diagram.
- Determining the Depth of the Dig
In order to ensure the smooth progress of the subsequent dredging construction, it is very important to do a good job in the trial excavation work in the early stage and to clarify the depth of the trench on the basis of the trial excavation to improve the standardization of construction operations. Then, according to the results obtained from the trial excavation, the formal excavation construction can be carried out.
