DEVICE AND METHOD FOR OBTAINING INFORMATION ABOUT THE GROUND OF AN AREA FOR DREDGING

摘要

The invention relates to a device and method for obtaining information about the ground of an area for dredging. The device comprises a vessel, a source embodied to generate a signal under water and a carrier, mounted on the vessel and immersible in water, for a series of receivers which are embodied to measure a response signal returning via the bottom. The carrier comprises an elongate support structure with bending stiffness with a longitudinal direction extending transversely of the direction of navigation of the vessel. With the invented device the chance of ground portions not being adequately examined is relatively low. A more complete survey of a bottom for dredging is hereby obtained, so that the risk of damage is reduced compared to the method applied with the known device.