Abstract: Disclosed is a method and device suitable for detection of and warning against tsunamis. The device is located in the water at sea. The device includes a vessel, a sensor for measuring a physical quantity of the surrounding water, a control unit inside the vessel and operatively connected to the sensor, and a communication element including a transmitter for communicating with an external receiver that the predetermined condition relating to the physical quantity is fulfilled. The device further includes a ballast tank inside the vessel. The interior of the ballast tank is connected to the outside of the vessel. A pump pumps water from the ballast tank to outside the vessel. The overall density of the device exceeds the density of the surrounding water when the ballast tank is filled, and is less than the density of the surrounding water when the ballast tank is empty of water.

Abstract: Disclosed is a pipe plug arrangement for temporary blocking a duct extending between a first location and a second location, the pipe plug arrangement including a bladder configured to be activated from an inactive state wherein the duct is unblocked to an active state wherein the bladder is filled and the duct is blocked. The pipe plug arrangement is characterized in that the pipe plug arrangement further includes a filler device that is connected to the bladder and has an opening, the opening during the activation of the bladder being arranged at an elevated height in relation to the bladder and being configured to receive liquid, wherein the filler device is configured to fill the bladder with liquid by gravity. Also disclosed is a method for activating such a pipe plug arrangement.

Abstract: Disclosed is a protective barrier segment for a temporary liquid-damming protective barrier configured for separating a flooded side from a protected side by abutting against a ground surface, the protective barrier segment including a liquid-damming member having a first surface facing the flooded side and a second surface facing the protected side. The protective barrier segment is characterized in that the liquid-damming member includes an opening connecting the flooded side and the protected side and in that the protective barrier segment further includes a pump arrangement, wherein the pump arrangement is located at the opening in sealed engagement with the liquid-damming member and wherein the pump arrangement, in use, pumps liquid from the protected side to the flooded side. Also disclosed is a protective barrier including such a protective barrier segment.

Abstract: Disclosed is a method and device suitable for detection of and warning against tsunamis. The device is located in the water at sea. The device includes a vessel, a sensor for measuring a physical quantity of the surrounding water, a control unit inside the vessel and operatively connected to the sensor, and a communication element including a transmitter for communicating with an external receiver that the predetermined condition relating to the physical quantity is fulfilled. The device further includes a ballast tank inside the vessel. The interior of the ballast tank is connected to the outside of the vessel. A pump pumps water from the ballast tank to outside the vessel. The overall density of the device exceeds the density of the surrounding water when the ballast tank is filled, and is less than the density of the surrounding water when the ballast tank is empty of water.

Abstract: Disclosed is a protective barrier segment for a temporary liquid-damming protective barrier configured for separating a flooded side from a protected side by abutting against a ground surface, the protective barrier segment including a liquid-damming member having a first surface facing the flooded side and a second surface facing the protected side. The protective barrier segment is characterized in that the liquid-damming member includes an opening connecting the flooded side and the protected side and in that the protective barrier segment further includes a pump arrangement, wherein the pump arrangement is located at the opening in sealed engagement with the liquid-damming member and wherein the pump arrangement, in use, pumps liquid from the protected side to the flooded side. Also disclosed is a protective barrier including such a protective barrier segment.

Abstract: Disclosed is an embanking arrangement for separating and protecting a first water volume from a second water volume, including a barrier connected to land and having an opening, a stationary basis extending across the opening, and a mobile port arrangement including a hull delimiting an inner tank. The embanking arrangement takes closed and open states respectively, wherein the inner tank of the port arrangement is at least partly filled with water and the hull of the port arrangement is standing on the basis when the embanking arrangement is in the closed state. The port arrangement is floating in the open state. The port arrangement includes at least a first opening connecting the inner tank and the first water volume, and including a controllable valve, and a pump connected with the second water volume to transport water from the first water volume to the second water volume.

Abstract: A device for detection of and warning against tsunamis. The device is characterized in that it includes a stationary base unit (2) and at least one courier (6) disengagably connected to the base unit (2), elements (3, 4, 5) for detection of the fulfillment of a predetermined condition, and elements (15) for releasing the courier from the base unit when the condition is fulfilled, the courier (6) including elements (10, 11, 12) in order to communicate to an external receiver that it is released from the base unit (2). A method for detection of and warning against tsunamis is also disclosed.

Abstract: A damming device for forming a liquid-damming protective bank comprises at least one first board (1), in the active state laying, intended to be urged by the liquid against the surface and thereby anchoring the device, as well as at least a second board (2), in the active state up-right, intended to dam the liquid. There are liquid-draining means (5) on the bottom side of the anchoring board (1). Devices (9, 9′) act between the two boards (1, 2) with the purpose of inhibiting tilting of the damming board (2) from the active position in the direction towards the dry the side, when liquid simultaneously affects the anchoring board (1) with a vertical force and the damming board (2) with a horizontal force.

Abstract: A liquid-damming protective bank comprises a member abutting against a surface upon which a vertical force acts with the purpose of pressing and anchoring the same against the surface. The bank member has a first long side edge turned towards a flood side and an opposite long side edge turned towards a dry side of the protective bank. Between the surface (2) and the bank member (1) there is applied a device (12) extending axially along the bank, e.g. a mat, the purpose of which is to drain away flood liquid possibly leaking in under the member from the flood side so as to keep the area on the bottom side of the member elongating from the long side edge of the draining device (12) being closest to the flood side to the dry side, at or close to atmospheric pressure in order to obtain a maximum pressure difference in relation to the hydraulic pressure keeping the protective bank sealing against the surface.