Construction

Port construction

Port, terminal and quay wall construction requires a range of underwater measurements to investigate the geotechnical characteristics of the soil.
Thickness of the mud layers, soil and sediment structure influences the project time frame and stability of the construction works. Researching these parameters enables contractors to work with the right equipment and complete the construction in the conditioned time frame. The end result is the ability to offer top quality work to the customer.
With the dotOcean GraviProbe it is possible to accurately determine the characteristics of the fluid layers above the hard bottom. Mud layers and sediment composition are parameters that will ensure a correct picture of the soil structure and allow to select the right tools for future decisions.

Quay wall inspection

Quay wall stability is determined by the level at which a stable soil structure is supporting the quay wall. A ship propeller can scour a sand layer and undermine the quay wall. When the scour pit is filled with soft sediment an acoustic system cannot detect the weak point. In this case GraviProbe profiles taken along a quay wall visualize the sediment layer on top of a sand layer and show the scour pit.

Dam maintenance

Sediment often aggregates in reservoirs of dams, resulting in a loss of ability to store water and blocking the pipelines to the generator system. In order to constitute an effective maintenance plan, data of the sediment layers must be collected. Analyzing underwater sediment layers with parameters as thickness, re-sedimentation, consolidation and ton dry weight results in an optimization of the dam’s maintenance process.
With the dotOcean GraviProbe and DensX system it is possible to accurately determine the characteristics of the sediment layers in front of a dam. Density, turbidity and sediment consolidation are parameters that will ensure a correct picture of the sediment structure and allow to select the right maintenance method.

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