Submarine construction for Tsunami and flooding protection, for fish farming, and for protection of buildings in the sea

Abstract

Construction of buildings in deep sea by conventional methods is extremely difficult. A new technology by using steel fences and anchors, and fixed by inserted rocks, will be demonstrated with the example of efficient vertical Tsunami barriers extending at least 50 m up to 4 km below sea level. New gained land surface and also the fishing farms between Tsunami barrier and shore may compensate most of the costs. Walls and buildings in deep sea may assist deep-sea mining. Vertical walls extending above sea level, preferably protected with hanging triangular structures as surge stoppers, with massive stabilization landward, will replace conventional dikes and levees and will save land areas. Vertical walls of fences extending above sea level, which are circular and filled with rocks, surround pillars to protect off-shore platforms, windpower plants, bridge pillars and other submarine structures.

1 . Barrier against shock waves such as Tsunami and/or against high sea waves comprising a wall extending preferably 50 m to 500 m, maximum  4 km below sea level, a wall of which the lowest end is adapted to be fixed on the sea floor or in the ground, said wall being furthermore designed to be stabilized in a substantially vertical position and to be protected against erosion above sea level by hanging and replaceable surge stoppers or wave deflectors. 
     
     
         2 . Barrier according to  claim 1  wherein said wall is a fence with horizontal anchors stabilized landward by rocks, concrete blocks or other solid bodies, or is a double-fence wall filled with rocks. 
     
     
         3 . Barrier according to  claim 2  comprising several fences horizontally and vertically interconnected to form a large continuous surface. 
     
     
         4 . Barrier according to  claim 2  wherein said fence(s) is/are made of steel. 
     
     
         5 . Barrier according to  claim 2  comprising anchors which are fixed to said fence(s) and which are held horizontally and adapted to be fixed by rocks or concrete blocks inserted from above. 
     
     
         6 . Barrier according to  claim 2  comprising two substantially parallel fences connected at the bottom and thus forming a fence basket adapted to be filled by rocks and/or similar materials, and with distance holders to keep the parallel fences apart. 
     
     
         7 . Barrier according to  claim 2  comprising a chain of steel beams with side-arms, spines and anchors to connect neighbouring fences and to provide the horizontal anchors to stabilize the vertical fences by rocks. 
     
     
         8 . Barrier according to  claim 2  wherein said fence(s) is/are coated or filled in by a salt-water resistant elastic polymer like a natural or a synthetic rubber, poly-urethane, or by concrete. 
     
     
         9 . Barrier according to  claim 1  where the surface topology and structure and the inclination from vertical are adjusted to reduce the harmful effect of reflected pressure waves on opposite coasts. 
     
     
         10 . Barrier according to  claim 1  of at least 1 m thickness at the sea and at least 50 cm thickness along rivers, fixed by concrete foundation or by steel beams in the sea floor or in the ground and extending at least 4 m above the sea level to replace conventional dikes, with vertical steel beams for later heightening and for hanging triangular long structures, preferably of concrete or of double-fence-rock structure, of 1 m to more than 5 m horizontal length to protect the fence-rock wall or the concrete wall, and to be replaced when eroded or damaged, said barrier being stabilized landward by heavy masses to withstand sea waves from heaviest storms and recover at the same time land surface. 
     
     
         11 . Barrier according to  claim 1  comprising a sequence of submerged walls in terrace (step-riser) structure. 
     
     
         12 . Method for constructing a barrier as defined in  claim 1 , said method comprising the following steps:
 Lowering of fence(s) with anchors into the sea by assistance of weights,   Horizontally fixing said anchors by rocks or concrete blocks inserted from above,   Filling the coast side of said fence with rocks and/or similar materials and a top soil layer to gain new land.   
     
     
         13 . Method for constructing the double-fence-rock barrier comprising of the following steps:
 Simultaneous lowering of two fences with anchors and distance holders into the sea,   filling the gap between the vertical fences with rocks or concrete blocks,   inserting further rocks on the coastal side of the double-fence for enhanced mechanical stabilization and with the possibility to fill the gap towards the shore for gaining new land.   
     
     
         14 . Flexible submerged barrier, hanging on bearings or on chains, can partially replace the Tsunami barrier of  claim 1  and can be fitted with waterwheels or turbines using the inward and outward water flow for producing electric energy. 
     
     
         15 . Swimming roads and land surfaces, and of roads and land surfaces on pillars or on fence-rock structures, created between barriers as defined in  claim 1  and the coast, and to leave openings on top so that algae and other plants can grow and that feeding can be supplied for production of fish and other seafood. 
     
     
         16 . Using the sea-water reservoirs between Tsunami barriers and the coast for large-scale fish farming, the reservoirs being separated by supply roads which allow access to the open sea by ships and fishing boats. 
     
     
         17 . Use of a circular (or other closed shape) double-fence tube barrier with distance holders and filled with rocks or other solids as defined in  claim 5  for protecting bridge pillars, offshore platforms, wind power plants, light-towers, Tsunami warning systems and other submarine buildings. 
     
     
         18 . Use of a circular (or other closed shape) single outside fence which is fixed to the pillar or other submerged building to be protected, by means of distance holders for filling the gap between pillar and fence with rocks or other solid materials. 
     
     
         19 . Under-water densification (compacting) of the fence-rock structures of  claim 2  by repeated lifting a hanging heavy weight (of adjustable height) and loosen it so that it hits the fence-rock structure thereby causing vibrations. 
     
     
         20 . Method of fabricating double-fence-rock structures of three to more than 100 m height and 5 m to more than 100 m horizontal length to be lowered into deep sea to assist deep-sea mining, in order to define and separate specific areas, and in order to mark paths, directions and geographic points; the vertical fence-rock structures of one to more than 20 m width are connected to form cages of square or any other shape and can be covered to provide storage room for diving bells and other equipment.