JP2018115482A - Tsunami mass transport energy relaxation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tsunami mass transport energy relaxation device that can be installed on a sea bed in a stable state regardless of undulation of a seabed relax the mass transport energy of the tsunami accurately and reliably, and also easily perform maintenance and air replenishment.SOLUTION: A tsunami mass transport energy relaxation device according to the present invention comprises: an air tank 1 which is horizontally elongated cylindrical and can be filled with air and has an opening on a seabed side; an air tank holding weight 2 rotatably supported by a rotary shaft 14 provided along a central axis C of the air tank 1 and holding the air tank in the vicinity of a seabed SB; a tsunami detection float 3 disposed near a sea surface SF at a position separated by a predetermined distance in the horizontal direction from the air tank 1 held near the seabed SB; and an air tank rotation wire 4 for connecting the tsunami detection float 3 and a peripheral wall 11 of the air tank 1.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a tsunami mass transport energy mitigation device for mitigating offshore tsunami mass transport energy propagation that rushes toward a coast.

  Conventionally, as a countermeasure against tsunamis, disaster prevention methods for catching tsunamis by installing breakwaters near or on the coast have been common, and depending on various conditions such as height, strength, topographical environment, etc., damage may occur beyond imagination. There was a case.

  Even if a high and strong breakwater is built on the coast, the mountain of seawater propagated by the tsunami that has slammed several times increases its mass, and eventually goes to the lower side, rushing through the gaps and into rivers and land The situation is that there is no way to prevent the tsunami from reaching the coast because it flows all at once.

  Unlike the typhoon and the flow of tides, the mass transport energy is approaching the coast by high-speed propagation of up and down movement that pushes up a large amount of seawater one after the other after falling. The bottom of the sea suddenly becomes shallower, the propagation speed is braked, the propagation of mass transport energy is forward, and the top of the high waves repeatedly flows down the entire slope, causing a step wave action phenomenon, and the flow near the coast is the first time from up and down motion. Beginning on the coast, it is the most difficult to prevent the mass transport energy of the tsunami near the coast because of the storm surge during the typhoon, the high tide of the tide, and the huge amount of seawater mountains accumulated off the coast.

  In particular, on the surface of the Rias coast, the bay and the bay, the seawater piled up one after another on the shallow water piled up one after another.

  In this way, the mechanism of the tsunami that travels deep offshore at high speed is different from the flow generated by tide level bias and tides during typhoons, and the mass transport energy of the tsunami propagating offshore is the direction of travel. The seawater mountain sinks into the seawater, and the same mass of seawater rises up and down.The seawater mountain is moved to the coast one after another. Therefore, as one of the tsunami disaster prevention measures, before the tsunami approaches the coast, measures to mitigate the mass transport energy of the tsunami offshore and prevent damage on the coast are indispensable.

  Therefore, before the tsunami approaches the coast, the present inventor has previously applied for a patent for a preferable tsunami mass transport energy mitigation device as a measure for mitigating the tsunami mass transport energy offshore and preventing damage on the coast (Japanese Patent Laid-Open No. 2014). -20188).

  As shown in FIG. 15, the device for mitigating tsunami mass transport energy before the tsunami approaches the coast, presented in this publication, exhibits a horizontal semi-cylindrical shape having an open lower surface 11a and closed both side surfaces 12a, 12a. The shafts 13a and 13a formed on both side surfaces 12a and 12a of the half-pipe air tank 1a into which air has been press-fitted are connected to the weight 2a disposed on the seabed SB by adjusting wires 3a and 3a, and are arranged horizontally in the sea. At the end of the pipe air tank 1a in the left and right direction, the arms 4a and 4a are placed at the tip of the arm 4a and 4a with the adjusting wires 5a and 5a so that the large floats 6a and 6a are stabilized near the offshore sea level at normal waves. When a tsunami occurs, when the first wave of mass transport energy of a large wave that approaches the half-pipe air tank 1a placed offshore, The large buoyancy 6a, 6a on the side automatically reacts to a large wave, suddenly pushed upward, the main tank tanks are reversed all at once, and the air layer rises toward the center of the tsunami mass transport energy. Absorbs mass transport energy, weakens its power, weakens the tsunami itself, and in areas where the topography of the bay or river basin is narrow, if it is placed in combination with a tide breakwater, it will exceed the expected level. Even if a tsunami occurs, the damage reduction effect can be obtained and the tsunami damage can be prevented very effectively.

JP 2014-20188 A

  As described above, the tsunami mass transport energy mitigation device presented in the above publication can effectively mitigate tsunami energy offshore before the tsunami rushes to the coast. As shown in FIG. 13, the half-pipe air tank 1a is fixed to the weight 2a installed in the vicinity of the seabed SB in a floating state in the sea with the adjusting wires 3a and 3a, and can be installed without being constrained by the undulation of the seabed SB. On the other hand, there is a problem of lack of stability because the half pipe air tank 1a is connected to the weight 2a installed on the seabed SB in a floating state. In particular, the half pipe air tank 1a has a semi-cylindrical shape laid horizontally. The air filled inside with a slight rocking leaks into the sea and there is not enough air to be ejected when necessary Situation arises that Tsu occurs.

  In addition, it is difficult to adjust the settings of the large floats 6a... 6a that react to ensure that the half-pipe air tank 1a is reversed and the air layer is surely lifted toward the center of the mass transport energy of the tsunami. In addition, there is a problem that maintenance maintenance, air replenishment and the like cannot be easily handled, and in particular, there is a problem that the navigation of the ship becomes an obstacle because the half pipe air tank 1a is arranged near the sea surface.

  The present invention relates to an improvement of the tsunami mass transport energy mitigation device presented in the above publication, and can be installed on the seabed in a stable state regardless of the undulations of the seabed, and the operation is accurate and reliable. It is an object of the present invention to provide a tsunami mass transport energy mitigation device that relaxes mass transport energy and is easy to maintain and refill with air.

  A tsunami mass transport energy mitigation device according to the present invention made to solve the above problems is an air tank having a horizontally long cylindrical shape with both side surfaces closed and capable of being filled with air and having an opening on the seabed side. An air tank holding weight that is rotatably supported by a rotating shaft provided along the central axis of the air tank and that holds the air tank near the seabed, and is more horizontal than the air tank held near the seabed. A tsunami detection float placed near the sea surface at a predetermined distance in the direction, and an air tank rotation wire connecting the tsunami detection float and the peripheral wall of the air tank, and the tsunami floating near the sea surface When the tsunami reaches the detection float, the air tank rotation wire is pulled by the tsunami detection float being pushed up by the tsunami, and the air -Reversing the opening that was directed downward by rotating the tank on the rotating shaft and blowing the air filled inside to the tsunami that reached the upper side, thereby mitigating the mass transport energy of the tsunami Features.

  Also, in the present invention, a wire having a rotation control float attached to the tip is attached to the top of the air tank, so that the rotation of the air tank is controlled and the opening is maintained toward the seabed side. Accordingly, it is possible to keep the horizontal state in a normal state and prevent the air filled inside from flowing out.

  Furthermore, in the present invention, when the tsunami reaches the tsunami detection float by connecting the air tank rotation wires connecting the tsunami detection float to at least both axial ends of the peripheral wall of the air tank, respectively. The air tank is surely rotated, and the air filled inside is surely blown up to reduce the mass transport energy of the tsunami.

  Furthermore, in the present invention, the air tank rotation wire connects the air tank and the tsunami detection float via a weight with a pulley that hooks the air tank rotation wire installed on the seabed. As a result, when the pair of tsunami detection floats are pushed up by the tsunami on the flat seabed, the cylindrical air tank can smoothly rotate and the filled air can be ejected simultaneously.

  In the present invention, in the middle of the air tank rotation wire, the other end of the auxiliary wire having one end fixed to an auxiliary weight installed on the seabed at a predetermined distance in the horizontal direction from the air tank is When the tsunami detection float is pushed up by the tsunami, even if there are undulating obstacles on the sea floor, the air tank rotation wire is pulled to rotate the air tank around the rotation axis. Rotating the opening that was directed toward the top, the air filled inside is blown up toward the tsunami that reaches the top, and the mass transport energy of the tsunami can be mitigated.

  Furthermore, in the present invention, a plurality of wire attachment portions are provided on the peripheral wall of the air tank, so that the attachment position can be selected when connecting the air tank rotation wire to the peripheral wall of the air tank. In this case, the adjustment can be easily performed, for example, when it is desired to adjust the angle at which the opening is rotated according to the terrain where the air tank is installed or the water depth.

  In addition, in the present invention, the tsunami detection float comprises a disk-shaped sea surface tsunami detection float located on the sea surface and a cross-sectional, streamlined, disk-shaped underwater tsunami detection float located in the sea. It is possible to react to the seawater mountain and to minimize the influence of strong winds and swells on the ocean.

  Furthermore, it is possible to spray a plurality of air layers in one place by arranging a plurality of air tanks on the one air tank holding weight with their central axes coaxial or parallel in parallel. It is.

  A tsunami that reaches from offshore by deploying air tanks supported by the tsunami detection float connected to the air tank rotation wire and the weight for holding the air tank at several regular intervals from offshore to the coastal direction. The tsunami always passes directly above the air layer that spouts one after another in response to the tsunami, and the energy can be alleviated one by one.

  According to the present invention, the mass transport energy of a large mountain of tsunami seawater is mitigated one by one offshore offshore by deploying and installing the present invention several times off the bay, bay, Rias coast and important coast. It is possible to reduce the mass of accumulated seawater of large waves on the coast, and to further reduce damage caused by tsunamis together with evacuation and breakwater structures, especially in the stable state regardless of the undulations of the seabed. In addition, it can be installed in the air, and the operation can be performed accurately and reliably, and the mass transport energy of the tsunami can be relaxed, and maintenance and air replenishment can be facilitated. There is no worry of harming the underwater environment.

1 is a schematic perspective view showing a preferred embodiment of the present invention. The schematic side view which expanded a part of embodiment shown in FIG. Sectional drawing of the part which made the air tank holding weight in the embodiment shown in FIG. 1 hold | maintain an air tank. FIG. 4 is a side view of FIG. 3. FIGS. 1A and 1B show a state in which an air tank holding weight holding an air tank in the embodiment shown in FIG. 1 is installed on the offshore seabed, (a) is an installed state, and (b) is an air tank. The state where air is spouted by rotating is shown. FIG. 1 shows a state in which an air tank holding weight holding an air tank in the embodiment shown in FIG. 1 is installed on the seabed rising offshore, (a) is an installed state, and (b) is an air tank. The state where air is spouted by rotating is shown. Explanatory drawing which shows the state act | operated by the tsunami in embodiment shown in FIG. Fig. 3 is an assumed force direction diagram of molecules due to vertical movement of tsunami mass transport energy. FIG. 3 is a side view showing an embodiment in which an air tank is held in parallel with an air tank holding weight. The top view which shows embodiment which arranged many the weight for air tank holding | maintenance holding the air tank in the vertical and horizontal direction. The schematic perspective view which shows different embodiment of this invention. The schematic side view which expanded a part of embodiment shown in FIG. The schematic side view which shows different embodiment of this invention. FIG. 14 is a schematic plan view showing the embodiment shown in FIG. 13. Explanatory drawing which shows a prior art example.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

  1 to 7 show a preferred embodiment of the present invention installed on a flat seabed. A tsunami mass transport energy mitigation device according to the present invention is mainly hermetically sealed by side plates 13 and 13 on both sides. An air tank 1 that is closed horizontally and can be filled with air A and has an opening 12 on the seabed SB side, and projects into the side plates 13 and 13 along the central axis C of the air tank 1. An air tank holding weight 2 that supports the air tank 1 in the vicinity of the seabed SB, and is supported in a horizontal direction by a horizontal direction from the air tank 1 held in the vicinity of the seabed SB. A tsunami detection float 3 arranged near the sea surface SF at a distance, and an air tank rotation wire 4 connecting the tsunami detection float 3 and the peripheral wall 11 of the air tank 1. It consists of.

  The opening 12 is formed below the horizontal plane in the central axis C, and the timing at which the air A is spouted according to the depth of water in which the air tank 1 is arranged, for example, depending on the opening area, shape, and quantity of the opening 12. The amount of the air tank 1 can also be adjusted.

  The rotary shafts 14 and 14 are arranged along a central axis C of the air tank 1 and are constituted by a central shaft 15 having both ends thereof airtightly protruded from the side plates 13 and 13 by a predetermined length. 15 is disposed in the longitudinal direction in the air tank 1 through the side plates 13 and 13 on both side surfaces of the air tank 1, so that the strength of the rotary shafts 14 and 14 and the air tank 1 is reinforced.

  Further, the air tank 1 is formed with a reinforcing plate 16 having substantially the same shape as the side plate 13 having a through hole 17 at the center in the longitudinal direction thereof, and is reinforced to prevent breakage due to water pressure when it is placed in the sea. In addition, the air A that is being filled can be distributed to the inside of the air tank 1 through the through hole 17.

  As shown in FIGS. 3 and 4, the air tank 1 is disposed so that the central axis C thereof is horizontal, and the air A can be filled therein when disposed vertically and horizontally in the sea.

  The air tank 1 is preferably formed of an airtight plate material such as metal or a hard synthetic resin material. When the air tank 1 is formed of a material that is easily corroded by salt water such as metal, it is resistant by applying a salt damage prevention coating or the like. It is good to improve.

  On the other hand, the air tank holding weight 2 that horizontally supports the air tank 1 with the opening 12 facing the seabed SB has a substantially box shape with a trapezoidal shape and an open top surface, such as concrete. The weight main body 21 formed by the above-described structure is installed on the seabed SB, and the weight main body 21 has a shaft hole 22 that supports the air tank 1 horizontally above the weight main body 21 and rotatably supports the rotation shaft 14. The weight main body 21 is fixed to hold the air tank 1 filled with air A at least on the seabed having a predetermined depth against its buoyancy. Requires force (withstand load).

  As shown in FIGS. 4 and 5, even when the air tank holding weight 2 is installed at a location where the seabed SB is inclined in the off-shore up direction or off-shore down direction, the air tank can be kept air even if maintained in the longitudinal direction. The opening 12 of the tank 1 can be horizontally arranged directly underneath, and at the same time as the tsunami T arrives, the air tank rotating wire 4 is pulled and the cylindrical air tank 1 is rotated so that the air A that has been buried inside is opened. When the mass transport energy of the tsunami passes through just above the sea and tsunami passes through it, the energy is relaxed.

  In this embodiment, as shown in FIGS. 3 to 5, the air tank holding weight 2 is provided with wedge piles 25 fixed to the seabed SB at the four corners of the bottom surface 24, and the air tank holding weight 2 is more firmly attached. It can be installed on the seabed SB, and there is no fear of slipping even when the seabed SB is inclined.

  Further, in the present embodiment, a pair of sea surface tsunami detection floats 31 and a submarine float that rises greatly by reacting at the sea surface SF and the sea SI at the same time that the tsunami T reaches the longitudinal ends of the peripheral wall 11 of the air tank 1. An air tank rotating wire 4 connected to a tsunami detection float 3 composed of a tsunami detection float 32 is connected via a weight 51 with a straight pulley and a weight 52 with a pulley on the way installed on the seabed SB.

  The pair of sea surface tsunami detection floats 31 and the underwater tsunami detection floats 32 minimize the influence of strong winds and swelling waves on the ocean, and the cross-sectional flow that is surely reacted and pushed up to the seawater mountain of the tsunami. Linear and disk-shaped.

  Further, in the present embodiment, each air tank rotating wire 4 is provided with a weight 51 with a straight pulley installed on the seabed SB located directly below the tsunami detection float 3, and a midway pulley arranged on the seabed SB in the middle. It passes through the pulley 53 of the air tank holding weight 2 via the weight 52 and is attached to the wire attachment portion 41 provided on the peripheral wall 11 located on the opposite side of the tsunami detection float 3 at both ends in the longitudinal direction of the air tank 1. When the tsunami T reaches the tsunami detection float 3 as shown in FIG. 7, a pair of sea surface tsunami detection floats 31 and the underwater tsunami detection floats 32 that are arranged in the sea and the sea surface are lifted at the same time, and the air tank rotating wire 4 is pulled, the opening 12 of the cylindrical air tank 1 is rotated upward, and the air A that has been filled inside is blown out and still flows through the top. Alleviate the mass transport energy of no tsunami is a mechanism to keep the mountain of seawater.

  Further, in the present embodiment, a total of four suspension wires 61 and wire 12 on the opposite side of the opening 12 corresponding to the top of the air tank 1 are attached to the wire attachment portions 26 formed at the four corners of the top of the air tank holding weight 2. A total of two horizontal maintaining wires 62 and a pneumatic inlet pipe 8 having a check valve from the vicinity of the center of the air tank holding weight 2 are respectively provided on the wire attachment portions 42 provided at both ends in the longitudinal direction of the peripheral wall 11. Deployed up to the sea surface SF and held by the rotation control float 7 so that it can be kept almost vertical at all times, and the opening 12 of the air tank 1 that needs to maintain the level in order to hold the air A lying down is stable in normal times. It is a mechanism that can maintain sex.

  Further, after releasing air A from the inside of the air tank 1 in response to the tsunami T, the air tank 1 is returned to the normal posture with the opening 12 facing the seabed SB by the rotation control float 7. The apparatus can be used again simply by sending the air A from the inlet pipe 8 into the air tank 1.

  Note that the suspension wire 61 and the horizontal maintenance wire 62 connected to the rotation control float 7 have adverse effects such as preventing the tsunami detection float 3 from being lifted when the tsunami reaches and preventing the air tank rotation wire 4 from operating effectively. Does not reach.

  Further, one end of a pneumatic inlet pipe 8 with a backflow prevention valve is arranged below the opening 12 of the air tank 1 and the other end is attached to the rotation control float 7 and held on the sea surface SF, thereby holding the air tank 1 near the seabed SB. It is possible to fill the air tank 1 with the air A from the opening 12 in a state where the air tank 1 is installed.

  The mounting position of the air tank rotating wire 4 can be selected and installed from a plurality of wire mounting portions 41, 42 provided in the air tank 1. For example, the opening 12 is provided according to the terrain where the air tank 1 is installed or the water depth. The adjustment can be easily performed when it is desired to adjust the rotation angle.

  Since the suspension wire 61, the horizontal maintenance wire 62, and the pneumatic inlet pipe 8 are connected to the rotation control float 7 and are held on the sea surface SF, the workability and maintainability are excellent.

  Furthermore, the rotation control float 7 can be provided with a power generation function, and can be used for fishing, navigation, rescue, etc. as required, such as transmission / reception, lighting, maritime security.

  Reference numeral 63 denotes an auxiliary float attached to the suspension wire 61 and the horizontal maintenance wire 62, and reference numeral 81 denotes a passage formed in the weight main body 21 of the air tank holding weight 2 so that the pneumatic inlet pipe 8 is inserted. .

  Then, as shown in FIG. 7, when the tsunami T approaching from the offshore reaches the tsunami detection float 3, the tsunami detection float 3 is lifted and the air tank rotating wire rope 4 is pulled and attached to the base end thereof. Pulling the cylindrical peripheral wall 11 of the air tank 1 in the direction of the weight 51 with the direct pulley (offshore direction) and rotating it around the rotating shafts 14 and 14 of the air tank 1, the air A filled inside proceeds. As shown in FIG. 8, the air layer A approaches the air tank 1 such as the molecules S in which the air layer A pushes and attracts in the seawater and the force direction W of the mass transport energy molecules of the tsunami propagating from the generation source. Mitigating tsunami mass transport energy.

  FIG. 9 shows a plurality of (two in this embodiment) air tanks 1 and 1 mounted in parallel on one air tank holding weight 2, and one air tank rotating wire 4 is connected and interlocked. In this case, a plurality of rows of air layers can be blown up at one place.

  A plurality (two in this embodiment) of air tanks 1 and 1 may be arranged in series in one air tank holding weight 2 (not shown).

  Further, as shown in FIG. 10, the detection tank 3 connected by the air tank rotation wire 4 and the air tank 1 supported by the air tank holding weight 2 are overlapped at regular intervals from the offshore to the coastal direction. By deploying the tsunami, the tsunami always passes directly above the air layer that spouts one after another in response to the tsunami arriving from offshore, and the energy can be alleviated one by one.

  Further, as shown in FIG. 10, the air tank 1 and the tsunami detection float 3 are installed in the air tank 1 through the weights 51 and 52 with pulleys installed on the seabed SB at the three longitudinal ends and the center of the air tank 1. When connected by the tank rotation wire 4, the air tank 1 can be rotated more strongly by pulling the air tank rotation wire 4.

  FIG. 11 and FIG. 12 show different embodiments of the present invention, and the overall configuration, operation and effect are almost the same as those of the embodiment shown in FIG. 1 to FIG. In the embodiment shown in FIG. 7, the air tank 1 and the tsunami detection float 3 are connected by the air tank rotating wire 4 via weights 51 and 52 with pulleys installed on the seabed SB. In the middle of the air tank rotating wire 4 connecting the air tank 1 and the tsunami detection float 3, one end is fixed to the auxiliary weight 9 installed on the seabed at a predetermined distance in the horizontal direction from the air tank 1. At the same time, the other end 93 of the auxiliary wire 91 connected to the plurality of auxiliary floats 92 is fixed, and the weights 51 and 52 with pulleys are not used.

  According to the present embodiment, even when there is a undulating obstacle R on the seabed SB, the other end 93 of the auxiliary wire 91 is fixed to the air tank rotating wire 4 at a position higher than the undulating obstacle R, In addition, by attaching a plurality of auxiliary floats 92 to the air tank rotating wire 4 and the auxiliary wire 91, when the tsunami detection floating element 3 is pushed up by the tsunami T and the air tank rotating wire 4 is pulled, the undulation obstacle R is affected. It can be activated.

  4, 5, 6, and 9 indicate the position of the air tank rotating wire 4 in the present embodiment using the auxiliary weight 9. .

  FIG. 13 shows a different embodiment of the present invention. In this embodiment, a pulley 53 in which an air tank 1 and a tsunami detection float 3 are attached to an air tank holding weight 2 by an air tank rotating wire 4. And a weight 51 with a pulley installed on the seabed SB, and installed on the seabed at a position that is separated from the air tank 1 by a predetermined distance in the middle of the air tank rotating wire 4. The other end 93 of the auxiliary wire 91 having one end fixed to the auxiliary weight 9 is fixed.

  In the present embodiment, two air tanks 1 are provided in the air tank holding weight 2 as in the embodiment shown in FIG. 9, and a pulley 43 arranged between the two air tanks 1 is provided. Since the air tank rotating wire 4 is fixed to the wire attaching portions 41 and 41 and attached, the air tank rotating wire 4 can be pulled without loosening.

  According to the present embodiment, by arranging the two air tanks 1 on the air tank holding weight 2, it is possible not only to spray a plurality of rows of air layers in one place, but also to use the pulley 53 and the pulley 43. Therefore, the certainty of operation can be further increased.

  As described above, the present invention not only does not hinder the navigation of the ship by disposing the air tank 1 held by the air tank holding weight 2 on the seabed SB without arranging the air tank near the sea surface. The air tank 1, the air tank holding weight 2, the tsunami detection float 3, and the air tank rotating wire 4 have a simple structure that does not use electricity, and can be installed on the seabed in a stable state regardless of the undulations of the seabed. In addition, the operation is accurate and reliable, eases the mass transport energy of the tsunami, has good maintainability, and has little impact on the natural environment.

  Furthermore, it is desirable that the present invention is deployed in double and triple in order to alleviate the vertical movement of the seawater mountain of tsunami that is plunged from the source. It is far more economical than disaster recovery to install multiple installations off the coast of Rias and important coasts depending on the region, location, environment and conditions.

  DESCRIPTION OF SYMBOLS 1 Air tank, 2 Air tank holding weight, 3 Tsunami detection float, 4 Air tank rotation wire, 7 Rotation control float, 8 Pneumatic inlet pipe, 9 Auxiliary weight, 11 Perimeter wall, 12 Opening part, 13 Side surface, 14 Rotating shaft, 15 Central shaft, 16 Reinforcement plate, 17 Through hole, 21 Weight body, 22 Support part, 23 Shaft hole, 24 Bottom face, 25 Wedge pile, 31 Tsunami detection float for sea surface, 32 Tsunami detection float for sea, 41 Wire attachment part, 42 wire attachment part, 43 pulley, 51 weight with straight pulley, 52 weight with pulley on the way, 53 pulley, 61 suspension wire, 62 horizontal maintenance wire, 63 auxiliary float, 81 passage, 91 auxiliary wire, 92 auxiliary float, 93 Force direction of mass transport energy molecule of 93 other end, A air, C center axis, S molecule, T tsunami, R undulation obstacle, W tsunami SF sea level, SI sea, SB submarine

Claims (10)

A horizontally long cylindrical shape with both sides closed, which can be filled with air and supported by an air tank having an opening on the seabed side, and a rotary shaft provided along the central axis of the air tank. And an air tank holding weight for holding the air tank near the seabed, a tsunami detection float placed near the sea surface at a predetermined distance horizontally from the air tank held near the seabed, and the tsunami It consists of an air tank rotation wire that connects the detection float and the peripheral wall of the air tank,
When the tsunami reaches the tsunami detection float floating near the sea surface, the tsunami detection float is pushed up by the tsunami, so that the air tank rotation wire is pulled, and the air tank is rotated on the rotation shaft to move downward. Tsunami mass transport energy mitigation characterized in that the above-mentioned opening that was directed toward the tsunami is rotated upward to blow up the air filled inside to the tsunami that has reached the top, thereby mitigating the tsunami mass transport energy apparatus.   The wire having a rotation control float attached to the tip is attached to the top of the air tank, so that the rotation of the air tank is controlled and the opening is maintained toward the seabed side. Item 2. A tsunami mass transport energy relaxation device according to Item 1.   The tsunami mass transport energy mitigation device according to claim 1 or 2, wherein air tank rotating wires connected to the tsunami detection float are respectively connected to at least both axial ends of the peripheral wall of the air tank. .   The air tank rotation wire connects the air tank and the tsunami detection float via a weight with a pulley that hooks the air tank rotation wire installed on the seabed. The tsunami mass transport energy relaxation device according to claim 1, 2 or 3.   In the middle of the air tank rotation wire, the other end of the auxiliary wire is attached to the auxiliary weight installed on the seabed at a predetermined distance in the horizontal direction from the air tank. The tsunami mass transport energy relaxation device according to claim 1, 2, 3, or 4.   A plurality of wire attachment portions are provided in the circumferential direction on the peripheral wall of the air tank, so that the attachment position can be selected when connecting the air tank rotation wire to the peripheral wall of the air tank. The tsunami mass transport energy relaxation device according to claim 1, 2, 3, 4, or 5.   7. The tsunami detection float comprises a disk-shaped tsunami detection float for a sea surface located on the sea surface and a disk-shaped tsunami detection float for a sea bottom located in the sea. The described tsunami mass transport energy mitigation device.   The air tank can be filled with air in a state where the air tank is installed near the sea floor by arranging one end of a pneumatic inlet pipe with a backflow prevention valve below the opening of the air tank and holding the other end on the sea surface. The tsunami mass transport energy relaxation device according to claim 1, 2, 3, 4, 5, 6 or 7.   A plurality of air tanks are arranged in parallel on the one air tank holding weight with their central axes coaxial or parallel central axes. , 7 or 8 Tsunami mass transport energy relaxation device.   By deploying air tanks supported by the tsunami detection float connected by the air tank rotation wire and the weight for holding the air tank in multiple layers at regular intervals from the offshore to the coastal direction, The tsunami always passes directly above the air layer that spouts one after another in response, and its energy is alleviated one by one. Or a tsunami mass transport energy relaxation device according to 9;