JP3173506U - Breakwater reinforced structures and breakwater reinforced structures - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a breakwater reinforcement structure that can flexibly and flexibly oppose a large wave force caused by a strong tsunami or wave acting on a breakwater inside the port and can prevent sliding and falling of a breakwater structure such as a caisson. I will provide a.
The breakwater reinforcing structure is a breakwater reinforcing structure 1 disposed on the inner side of a breakwater 2 on which wave force from the outside of the port acts, and in a direction perpendicular to the inner wall surface of the breakwater 2 And in the position on the extended line of the line which connects the breakwater 2 and the 1st pile body 11 inside the harbor further than the 1st pile body 11 and the 1st pile body 11 which stood and arranged perpendicularly | vertically with respect to the wall surface A first pile 13 that connects the first pile body 11 with the second pile body 12 that is inclined and inclined to the first pile body 11 side, the outer wall inside the harbor of the breakwater 2 and the first pile body 11; It is set as the structure which has the 2nd connection body 14 which connects the 1st pile body 11 and the 2nd pile body 12 by a both-ends pin coupling.
[Selection] Figure 1

Description

  The present invention is a breakwater reinforcement structure that can flexibly and flexibly counteract the large wave force caused by the powerful tsunami and waves acting on the breakwater inside the port and prevent the sliding and falling of breakwater structures such as caissons. It is related with a structure and a breakwater reinforcement structure group.

  Conventionally, a breakwater installed on the coast is simply a concrete caisson or the like placed on a rubble foundation, and counteracts tsunamis and waves due to the weight of the caisson.

  However, such a rigid breakwater has a problem that, when subjected to a momentary strong wave force caused by a tsunami or a wave, a caisson or the like slides and falls from a rubble foundation.

  Many of the breakwaters installed on the Pacific coast of the Tohoku region slid, fallen, and collapsed due to the 2011 off the Pacific coast of Tohoku Earthquake that occurred on March 11, 2011. It was.

  As a method of preventing the sliding and falling of concrete caissons, etc., a method of raising the caisson etc. or throwing rubble inside the port has been proposed, but this method increases the height of the caisson etc. However, it is intended to counter tsunamis and waves by increasing its weight and is basically the same as a conventional rigid breakwater.

  It is desired to construct a breakwater structure that prevents the caisson from sliding and falling from the rubble foundation against such a large wave force caused by such a strong tsunami or wave. For this purpose, there is currently no flexible breakwater reinforcement structure that can prevent the sliding and falling of caisson or the like by flexibly absorbing the acting wave force.

  In Patent Document 1, the steel sheet pile 1 is disposed on the front side of the steel sheet pile 1 disposed on the sea side (front side) of the existing quay and is installed so as to directly or indirectly contact the steel sheet pile 1 to support the steel sheet pile 1 from the front side. There has been proposed a reinforcing structure for an existing harbor quay comprising a wall body supporting member 7 and a pile body 9 having a head coupled to the wall body supporting member 7 and supporting the wall body supporting member.

  In the case of the reinforcing structure disclosed in Patent Document 1, a wall support member 7 is disposed on the front surface of the steel sheet pile 1 and acts on the steel sheet pile 1 based on a rigid structure in which the head of the pile body 9 is coupled to the wall support member 7. It is constructed to increase the strength of the steel sheet pile 1 against the earth pressure, and the wave power of the tsunami etc. is flexibly absorbed inside the port of the breakwater to prevent the caisson etc. from sliding and falling. It is different from the reinforcing structure.

JP 2010-156192 A

  The problem to be solved by the present invention is that the large wave force caused by the powerful tsunami and waves acting on the breakwater is flexibly counteracted by the flexible structure inside the port, and sliding, sliding of caisson and other breakwater structures, There is no breakwater reinforcement structure or breakwater reinforcement structure group that can reliably prevent falls.

  The present invention is a breakwater reinforcing structure disposed inside the port of a breakwater on which wave force from the outside of the port acts, and is in a direction perpendicular to the wall surface inside the port of the breakwater and spaced from the wall surface The first pile body that is vertically arranged vertically and the top portion is inclined toward the first pile body at a position on the extension line of the line connecting the breakwater and the first pile body further inside the port than the first pile body. A second pile body inclined and arranged, a first connection body for connecting the outer wall inside the port of the breakwater and the first pile body by pin connection at both ends, and the first pile body and the second pile body. It has the 2nd coupling body connected by a both-ends pin coupling, and makes it the most main characteristics.

  According to the first aspect of the invention, the bending stress due to the first pile body and the indentation stress due to the second pile body in the inclined arrangement and the large wave force caused by the powerful tsunami and waves acting on the breakwater, Breakwater reinforcement structure that can flexibly oppose and absorb bending stress and flexible structure by connecting both ends of the first and second connectors, and can surely prevent sliding and falling of the breakwater structure such as caisson Can be realized and provided.

  According to the invention described in claim 2, the bending stress due to the first pile body made of any one of a straight pile, a sheet pile, a steel pipe pile, etc. inside the port against a large wave force caused by a strong tsunami or wave acting on the breakwater. And the indentation stress and the bending stress by the second pile body composed of the inclined pipe pile or the inclined pile using the H-shaped steel pile, and the flexible structure by the pin connection of both ends of the first connection body and the second connection body It is possible to realize and provide a breakwater reinforcing structure that can be absorbed in the opposite direction and can surely prevent a breakwater structure such as a caisson from sliding and falling.

  According to the third aspect of the invention, a plurality of steel pipe sheet piles are arranged in parallel using joints inside the port against a large wave force caused by a powerful tsunami or wave acting on the breakwater, and the caisson side of the plurality of steel pipe sheet piles And the bending stress by the 1st pile body which consists of a steel pipe sheet pile which has the structure which joined and arranged the attachment board to the 2nd connection body side, respectively, and the 2nd which consists of the slant pile using the steel pipe pile or H type steel pile of slant arrangement It can be absorbed flexibly by the indentation stress and bending stress by the pile body and the flexible structure by the pin connection of both ends of the first and second coupling bodies, and the sliding and falling of the breakwater structure such as caisson is surely prevented. A possible breakwater reinforcement structure can be realized and provided.

  According to the invention described in claim 4, the breakwater reinforcement structure according to any one of claims 1 to 3, for each caisson of the caisson group arranged in series that constitutes the breakwater on which the wave force from the outside of the port acts. By arranging each, the breakwater reinforcement structure 1 that reinforces each caisson exhibits the same effect as described above, and ensures that each caisson slides or falls from the foundation rubble to the inside of the port. A breakwater reinforcement structure group that can be prevented can be realized and provided.

  According to the invention described in claim 5, the bending stress due to the first pile body and the indentation stress due to the second pile body in the slant arrangement on the inner side of the harbor against a large wave force caused by a strong tsunami or wave acting on the breakwater Bending stress and flexible structure by pin connection at both ends of the first connecting body and rigid structure by welding at both ends of the second connecting body can be flexibly opposed and absorbed, ensuring the sliding and falling of the breakwater structure such as caisson It is possible to realize and provide a breakwater reinforcement structure that can be prevented.

  According to the invention described in claim 6, the bending stress caused by the first pile body made of any one of a straight pile, a sheet pile, a steel pipe pile, etc. on the inner side of the port against a large wave force caused by a strong tsunami or wave acting on the breakwater. And indentation stress and bending stress by the second pile body composed of slanted piles using steel pipe piles or H-shaped steel piles in an inclined arrangement, flexible structure by connecting both ends of the first connection body, and both ends welding of the second connection body It is possible to realize and provide a breakwater reinforcing structure that can be flexibly opposed and absorbed by the rigid structure by coupling and can surely prevent the breakwater structure such as caisson from sliding and falling.

  According to the invention of claim 7, a plurality of steel pipe sheet piles are arranged in parallel using joints on the inner side of the harbor against a large wave force caused by a strong tsunami or wave acting on the breakwater, and the caisson side of the plurality of steel pipe sheet piles And the bending stress by the 1st pile body which consists of a steel pipe sheet pile which has the structure which joined and arranged the attachment board to the 2nd connection body side, respectively, and the 2nd which consists of the slant pile using the steel pipe pile or H type steel pile of slant arrangement Breakwater structure such as caisson can be absorbed flexibly by the indentation stress and bending stress by the pile body, the flexible structure by the pin connection of both ends of the first connection body, and the rigid structure by the welding connection of both ends of the second connection body It is possible to realize and provide a breakwater reinforced structure that can surely prevent the sliding and falling.

  According to the invention described in claim 8, the breakwater reinforcement structure according to any one of claims 5 to 7 for each caisson of the caisson group arranged in series constituting the breakwater on which the wave force from the outside of the port acts. By arranging each, the breakwater reinforcement structure that reinforces each caisson exhibits the same effect as described above, and reliably prevents each caisson from sliding on the foundation rubble and falling inside the port. It is possible to realize and provide a breakwater reinforcing structure group that can be used.

FIG. 1 is a schematic sectional view of a breakwater reinforcing structure according to Embodiment 1 of the present invention. FIG. 2 is a schematic plan view of the breakwater reinforcing structure group according to the first embodiment. FIG. 3 is an enlarged schematic view of the breakwater reinforcing structure according to the first embodiment. FIG. 4 is an enlarged view showing the inner wall surface of one caisson where the breakwater reinforcing structure according to the first embodiment is arranged. FIG. 5 is a schematic view of the first connection body and the second connection body constituting the breakwater reinforcement structure according to the first embodiment. FIG. 6: is a schematic cross-sectional view which shows the 1st pile body which consists of a steel plate sheet pile which is a modification of the 1st pile body in the breakwater reinforcement structure which concerns on the present Example 1. FIG. FIG. 7 is an enlarged schematic view of a breakwater reinforcing structure according to Embodiment 2 of the present invention. FIG. 8 is an explanatory diagram showing a configuration in which the first pile body and the second pile body are connected by a double-end welded connection with the second connection body in the breakwater reinforcing structure according to the second embodiment.

  The present invention is a breakwater that can flexibly counteract the large wave force caused by the powerful tsunami and waves acting on the breakwater inside the port and can prevent sliding and falling of breakwater structures such as caisson. The purpose of realizing and providing a reinforcing structure is a breakwater reinforcing structure disposed inside a caisson port that constitutes a breakwater on which wave force from the outside of the port acts, and the caisson port constituting the breakwater A first pile body made of any one of a straight pile, a sheet pile, a steel pipe pile, etc., which is arranged in a direction perpendicular to the inner wall surface and vertically with respect to the wall surface, and further than the first pile body The 2nd pile which consists of the slant pile using the steel pipe pile or H type steel pile which inclined and arranged the top part to the 1st pile body side in the position on the extension line of the line which connects the caisson and the front 1st pile body inside the harbor Body and outer wall inside the caisson harbor Realized by a configuration having a first coupling body that couples the first pile body with both-end pin coupling, and a second coupling body that couples the first pile body and the second pile body with both-end pin coupling. .

Example 1
Hereinafter, a breakwater reinforcement structure and a breakwater reinforcement structure group according to Embodiment 1 of the present invention will be described in detail with reference to FIGS. 1 to 6.

  As shown in FIG. 1, the breakwater reinforcement structure 1 according to the first embodiment is disposed inside the harbor of a breakwater 2 where tsunami or wave force from the outside of the port acts, and reinforces this breakwater 2. is there.

  As is well known, the breakwater 2 is constructed of a rubble foundation 4 in a mountain shape on a ground (submarine ground) 3, a caisson 5 is placed on the foundation rubble 4, and its cover concrete 5 a and upper concrete 6 are placed. In addition, a root solid block 7 and a deformed block 8 are arranged on the foundation rubble 4 outside the port of the caisson 5.

  In addition, a root solid block 9 and a covering stone 10 are arranged on the basic rubble 4 inside the port of the caisson 5.

  The breakwater reinforcement structure 1 is vertically arranged in a direction perpendicular to the wall surface inside the port of the caisson 5 constituting the breakwater 2 and with the lower portion driven into the ground 3 at a distance from the wall surface. On the extension line of the line connecting the caisson 5 and the first pile body 11 further inside the port than the first pile body 11 and the first pile body 11 made of any one of the straight pile, sheet pile, steel pipe pile, etc. A second pile body 12 composed of a steel pipe pile or a slant pile using an H-shaped steel pile with the top inclined to the first pile body 11 side and the lower portion driven into the ground 3. The first connection body 13 using, for example, a steel rod, which connects the outer wall of the caisson 5 inside the port and the first pile body 11 by pin connection at both ends, the first pile body 13 and the second pile body 13 And a second connecting body 14 using, for example, a steel rod. The has.

  The inclination angle of the second pile body 12 is not particularly limited, and examples thereof include an inclination angle of any one of 30 degrees to 45 degrees with respect to the vertical.

  Next, with reference to FIG. 3 and FIG. 4, a description will be given of both-end pin coupling that is a flexible structure of the first connecting body 13 that connects the outer wall inside the port of the caisson 5 and the first pile body 11.

  The pin holders 15 and 16 each having a U-shape in plan view are arranged to face the center portion of the outer wall surface inside the port of the caisson 5 and the outer wall portion of the first pile body 11 at a position facing the center portion. It is stuck with.

  That is, the pin receiver 15 has a base portion 15a fixed to the outer wall surface of the caisson 5, and a pair of side pieces 15b and 15b projecting from the base portion 15a are provided with pin holes 15c.

  Similarly, the pin holder 16 has a base portion 16a fixed to the outer wall portion of the first pile body 11, and a pair of side pieces 16b, 16b projecting from the base portion 16a, and pin holes 16c are provided respectively.

  Moreover, as shown in FIG. 5, the through-holes 13a and 13b are provided in the one end side and other end side of the said 1st coupling body 13, respectively.

  Then, in a state where the through hole 13a on one end side of the first connecting body 13 and the pin holes 15c provided in the pair of side pieces 15b, 15b of the pin receiver 15 are matched, the connecting pin 19 is It inserts, and it is set as the structure which pin-connects the one end side of the said 1st connection body 13, and the center part of the outer wall surface in the port inner side of the said caisson 5 by this.

  In addition, in a state where the through hole 13b on the other end side of the first connecting body 13 and the pin holes 16c provided in the pair of side pieces 16b, 16b of the pin receiver 16 are matched, the connecting pin 19 Thus, the other end side of the first coupling body 13 and the outer wall portion of the first pile body 11 are pin-coupled.

  Next, the both-ends pin coupling used as the flexible structure of the 2nd connection body 14 which connects the said 1st pile body 11 and the said 2nd pile body 12 is demonstrated.

  On the outer wall portion of the first pile body 11 on the second pile body 12 side, and the outer wall portion of the second pile body 12 facing the outer wall portion, pin holders 17 each having a U-shape in plan view, 18 is fixed in an opposing arrangement.

  The pin holder 17 has a base portion 17a fixed to the outer wall surface of the first pile body 11, and a pin hole 17c is provided in each of a pair of side pieces 17b and 17b protruding from the base portion 17a.

  Similarly, the pin holder 18 has the base 18a fixed to the outer wall portion of the second pile body 12, and a pair of side pieces 18b and 18b projecting from the base 18a are provided with pin holes 18c, respectively.

  Moreover, as shown in FIG. 5, the through-holes 14a and 14b are provided in the one end side and other end side of the said 2nd coupling body 14, respectively.

  Then, in a state where the through hole 14a on one end side of the second connector 14 and the pin holes 17c provided in the pair of side pieces 17b, 17b of the pin receiver 17 are matched, the connecting pin 19 is It is made into the structure which inserts and pin-couples the outer wall part of the said 1st pile body 11, and the one end side of the said 2nd coupling body 14 by this.

  Further, the connecting pin 19 is connected in a state where the through hole 14b on the other end side of the second connecting body 14 and the pin holes 18c provided in the pair of side pieces 18b, 18b of the pin holder 18 are matched. It is set as the structure which inserts and pin-couples the other end side of the said 2nd connection body 14, and the outer wall part of the said 2nd pile body 11 by this.

  Next, functions and effects of the breakwater reinforcing structure 1 according to the first embodiment will be described.

  When a wave force due to a tsunami or the like acts on the caisson 5 constituting the breakwater 2 from the outside of the port, this wave force acts as a horizontal force F from the caisson 5 to the breakwater reinforcement structure 1.

  And the horizontal force F is transmitted to the 1st connection body 13, the 1st pile body 11, the 2nd connection body 14, and the 2nd pile body 12 of the breakwater reinforcement structure 1. FIG.

  That is, a bending force due to a horizontal force F acts on the first pile body 11, and a force transmitted to the second pile body 12 through the first pile body 11 is the second. It acts as a force to push the pile body 12 toward the ground 3 and a force to cause the second pile body 12 (force to reduce the tilt angle).

  At this time, the first pile body 11 driving the lower portion into the ground 3 opposes the horizontal force F due to bending stress.

  Moreover, the 2nd pile body 12 opposes with the pushing stress and the bending stress from the ground 3 with respect to the force which acts.

  The action opposite to the horizontal force F due to each stress of the first pile body 11 and the second pile body 12 is the pin coupling at both ends of the first coupling body 13 and the pin coupling at both ends of the second coupling body 14. Therefore, the horizontal force F acting on the caisson 5 can be absorbed flexibly.

  As a result, the breakwater reinforcement structure 1 according to the first embodiment can reliably prevent the caisson 5 from sliding on the foundation rubble 4 or falling to the inside of the harbor.

  FIG. 2 shows a breakwater reinforcement structure group 21 using a large number of breakwater reinforcement structures 1 described above.

  That is, the breakwater reinforcement structure group 21 is the case where the breakwater reinforcement structure 1 is described above with respect to each caisson 5 in a large number of caisson groups arranged in series constituting the breakwater 2 on which the wave force from the outside of the port acts. Are respectively arranged on the basis of the same configuration.

  According to such a breakwater reinforcing structure group 21, the breakwater reinforcing structure 1 that reinforces each caisson 5 exhibits the same action as described above, and each caisson 5 slides from the foundation rubble 4 to the inside of the harbor. Or falling down can be surely prevented.

  FIG. 6 shows a first pile body 31 which is a modified example of the first pile body 11 in the breakwater reinforcing structure 1 of the first embodiment.

  In the first pile body 31 of this modification, a plurality of steel pipe sheet piles (for example, two pieces in this embodiment) 32 are arranged in parallel at a predetermined interval using a joint 33, the caisson side of the two steel pipe sheet piles 32, and The steel pipe sheet pile 36 has a structure in which the attachment plates 34 and 35 are joined and arranged on the second connecting body 14 side.

  As the joint 33, for example, a joint called PT type is used. That is, the joint 33 is disposed between the two steel pipe sheet piles 32 along the length direction of the two steel pipe sheet piles 32.

  The joint 33 includes a first joint member 37 made of corrosion-resistant steel or the like having a C shape in plan view, which is fixedly disposed along the length direction of one of the two steel pipe sheet piles 32, and the other. And a second joint material 38 made of corrosion-resistant steel material having a T-shape in plan view, which is fixedly disposed along the length direction of the steel pipe sheet pile 32, and the second joint material 38 is substantially entirely formed by the first joint material 37. It is intended to wrap around the circumference.

  As the joint 33, in addition to the one shown in FIG. 6, a structure called an LT type, a structure called an angle type, and the like (not shown) can be used.

  In addition, as said steel pipe sheet pile 32, it can also be set as the structure using many steel pipe sheet piles, such as 3, 4 pieces, etc. other than the above-mentioned 2 structure, By these, bending stress can be enlarged more. .

  When the breakwater reinforcement structure 1 has a structure in which the first pile body 31 of the modified example shown in FIG. 6 is incorporated, and the breakwater reinforcement structure 1 is arranged inside the harbor of the breakwater 2 as shown in FIG. However, it is possible to reliably prevent the caisson 5 from sliding on the foundation rubble 4 to the inside of the port or falling based on the same action as described above.

  Moreover, the breakwater reinforcement of the structure which incorporated the 1st pile body 31 of the modification shown in FIG. 6 with respect to each caisson 5 in many caisson groups of the serial arrangement | positioning which comprises the breakwater 2 which the wave force from the port outer side acts on It is also possible to make the breakwater reinforced structure group 21 in which the structures 1 are respectively arranged.

  In this case as well, as in the case shown in FIG. 2, the breakwater reinforcement structure 1 that reinforces each caisson 5 exhibits the same action as described above, and each caisson 5 slides from the foundation rubble 4 to the inside of the harbor. It is possible to reliably prevent the falling or falling.

(Example 2)
Next, the breakwater reinforcement structure 1A and the breakwater reinforcement structure group 21 according to Embodiment 2 of the present invention will be described in detail with reference to FIGS.

  Since the basic structure of the breakwater reinforcing structure 1A according to the second embodiment is the same as that of the breakwater reinforcing structure 1 according to the first embodiment, the same elements are denoted by the same reference numerals.

  In the breakwater reinforcing structure 1A according to the second embodiment, the first pile body 11 and the second pile body 12 are connected to each other by the rod-shaped second connection body 14A instead of the both-end pin connection of the second connection body 14. It is the feature that it was set as the structure connected by a both-ends welding connection, The other structure is the same as that of the case of the said Example 1. FIG.

  That is, as shown in FIGS. 7 and 8, the outer wall portion of the first pile body 11 on the second pile body 12 side, and the outer wall portion of the second pile body 12 facing the outer wall portion, For example, the receivers 41 and 42 each exhibiting a U shape in plan view are fixed in an opposing arrangement.

  Then, both ends of the rod-shaped second connecting body 14A are inserted between the receivers 41 and 42, and welding processing is performed between the both ends and the receivers 41 and 42, and the first pile body is formed by the second connecting body 14A. 11 and the said 2nd pile body 12 are comprised so that it may connect by a both-ends welding connection.

  In addition, in FIG. 8, 43 has shown the welding part.

  According to the breakwater reinforced structure 1A according to the second embodiment, the first pile body 11 driving the lower portion into the ground 3 is subjected to bending stress with respect to the horizontal force F in the same manner as in the first embodiment. Opposite.

  Further, the second pile body 12 connected to the first pile body 11 by welding connection at both ends of the second connection body 14A is opposed to the acting force by the indentation stress and the bending stress from the ground 3. To do.

  The action opposite to the horizontal force F due to each stress of the first pile body 11 and the second pile body 12 is the pin coupling at both ends of the first coupling body 13 and the welding coupling at both ends of the second coupling body 14. Accordingly, the horizontal force F acting on the caisson 5 can be absorbed in substantially the same manner as in the first embodiment.

  As a result, the breakwater reinforcing structure 1A according to the second embodiment can surely prevent the caisson 5 from sliding on the foundation rubble 4 or falling inside the harbor.

  It is of course possible to construct the breakwater reinforcement structure 1A by incorporating the first pile body 31 of the modification shown in FIG. 6 in place of the first pile body 11, and also in this case, the breakwater reinforcement structure shown in FIG. The effect similar to the case of the thing 1A can be exhibited.

  In addition, for each caisson 5 in a large number of caisson groups arranged in series constituting the breakwater 2 on which wave force from the outside of the port acts, a structure similar to that shown in FIG. It is also possible to construct the breakwater reinforced structure group 21 described above by arranging each of them.

  Also by the breakwater reinforcement structure group 21 using the breakwater reinforcement structure 1A, the breakwater reinforcement structure 1A that reinforces each caisson 5 exhibits the same action as described above, and each caisson 5 has a basic rubble. 4. It is possible to reliably prevent sliding or falling from the top to the inside of the port.

  Also in this case, it is possible to incorporate the first pile body 31 of the modified example shown in FIG. 6 into the respective breakwater reinforcing structures 1A, and exert substantially the same effect as described above.

  The present invention can be widely applied as a breakwater installed in a harbor, a breakwater installed in a coastal area, and a structure for constructing a jetty.

DESCRIPTION OF SYMBOLS 1 Breakwater reinforcement structure 1A Breakwater reinforcement structure 2 Breakwater 3 Ground 4 Foundation rubble 5 Caisson 5a Cover concrete 6 Upper concrete 7 Root solid block 8 Deformed block 9 Root solid block 10 Cover stone 11 First pile body 12 Second pile body 13 1st connection body 13a Through-hole 13b Through-hole 14 2nd connection body 14A 2nd connection body 14a Through-hole 14b Through-hole 15 Pin holder 15a Base 15b Side piece 15c Pin hole 16 Pin holder 16a Base 16b Side piece 16c Pin hole 17 pin holder 17a base 17b side piece 17c pin hole 18 pin holder 18a base 18b side piece 18c pin hole 19 connecting pin 21 breakwater reinforcing structure group 31 first pile body 32 steel pipe sheet pile 33 joint 34 additional plate 35 attachment Installation plate 36 Steel pipe sheet pile 37 First joint material 38 Second joint material 41 Receiving member 42 Receiving member 43 Welded portion F Horizontal force

The problem to be solved by the present invention is that the large wave force caused by the powerful tsunami and waves acting on the breakwater is flexibly counteracted by the flexible structure inside the port, and the breakage and fall of caisson and other breakwater structures There is no breakwater reinforcement structure and a breakwater reinforcement structure group that can be surely prevented.

According to the invention described in claim 2, against a large wave force caused by a strong tsunami or wave acting on the breakwater, on the inner side of the port, bending stress caused by the first pile body made of steel pipe piles, Can be absorbed flexibly against the indentation stress and bending stress by the second pile body composed of diagonal piles using H-shaped steel piles and the flexible structure by the pin connection of both ends of the first connection body and the second connection body, caisson etc. It is possible to realize and provide a breakwater reinforcement structure that can reliably prevent sliding and falling of the breakwater structure.

According to the invention described in claim 6, against a large wave force caused by a strong tsunami or wave acting on the breakwater, on the inner side of the port, bending stress due to the first pile body made of steel pipe piles, Flexible due to indentation stress and bending stress by the second pile body composed of diagonal piles using H-shaped steel piles, flexible structure by both end pin connection of the first connection body, and rigid structure by both end welding connection of the second connection body It is possible to realize and provide a breakwater reinforcing structure that can be absorbed in the opposite direction and can surely prevent a breakwater structure such as a caisson from sliding and falling.

The breakwater reinforcement structure 1 is vertically arranged in a direction perpendicular to the wall surface inside the port of the caisson 5 constituting the breakwater 2 and with the lower portion driven into the ground 3 at a distance from the wall surface. The first pile body 11 made of a steel pipe pile, and the top portion of the first pile body at a position on the extension line of the line connecting the caisson 5 and the first pile body 11 further inside the port than the first pile body 11. A second pile body 12 composed of a steel pipe pile or a slant pile using an H-shaped steel pile inclined with the lower portion driven into the ground 3 and the outer wall inside the port of the caisson 5 For example, a first connecting body 13 using, for example, a steel rod, and the first pile body 13 and the second pile body 13 are connected by both end pin connection. And a second connecting body 14 using a steel rod.

Claims (8)

A breakwater reinforcement structure arranged inside the harbor of the breakwater where wave power from the outside of the port acts,
A first pile body vertically arranged in a direction perpendicular to the wall surface inside the harbor of the breakwater and perpendicular to the wall surface;
A second pile body that is further inclined than the first pile body at a position on an extension line of the line connecting the breakwater and the first pile body on the inner side of the harbor, and inclined to the first pile body side;
A first connecting body for connecting the outer wall inside the harbor of the breakwater and the first pile body by pin connection at both ends;
A second coupling body that couples the first pile body and the second pile body by pin coupling at both ends;
Breakwater reinforcement structure characterized by having. A breakwater reinforcement structure that is arranged inside the caisson harbor that constitutes a breakwater on which wave force from the outside of the port acts,
A first pile body composed of any one of a straight pile, a sheet pile, a steel pipe pile, etc., which is arranged in a direction perpendicular to the wall surface inside the harbor of the caisson constituting the breakwater and perpendicular to the wall surface;
A steel pipe pile or an H-shaped steel pile that is inclined and arranged with the top inclined toward the first pile body at a position on the extended line of the line connecting the caisson and the first pile body inside the harbor further than the first pile body is used. A second pile body composed of slanted piles,
A first coupling body that couples the outer wall of the caisson port inside and the first pile body by pin coupling at both ends;
A second coupling body that couples the first pile body and the second pile body by pin coupling at both ends;
Breakwater reinforcement structure characterized by having. A breakwater reinforcement structure that is arranged inside the caisson harbor that constitutes a breakwater on which wave force from the outside of the port acts,
A plurality of steel pipe sheet piles arranged in parallel using joints in a direction perpendicular to the inner wall surface of the caisson port constituting the breakwater and perpendicular to the wall surface, and a plurality of steel pipe sheet pile caissons A first pile body made of a steel pipe sheet pile having a structure in which an additional plate is joined and arranged on the side and the second connecting body side;
A slant using a steel pipe pile or an H-shaped steel pile that is inclined and arranged with the top inclined to the first pile body side at a position on the extended line of the line connecting the caisson and the straight pile inside the harbor further than the first pile body. A second pile body consisting of piles;
A first connecting body for connecting the outer wall of the caisson port inside and one of the attached plates of the first pile body by pin connection at both ends;
A second connecting body for connecting the other attachment plate of the first pile body and the second pile body by pin connection at both ends;
Breakwater reinforcement structure characterized by having. A breakwater reinforcement structure group using the breakwater reinforcement structure according to any one of claims 1 to 3,
A breakwater reinforced structure according to any one of claims 1 to 3, wherein the breakwater reinforcement structure according to any one of claims 1 to 3 is arranged for each caisson of a series of caisson groups constituting a breakwater on which wave force from the outside of the port acts. Reinforcement structure group. A breakwater reinforcement structure arranged inside the harbor of the breakwater where wave power from the outside of the port acts,
A first pile body vertically arranged in a direction perpendicular to the wall surface inside the harbor of the breakwater and perpendicular to the wall surface;
A second pile body that is further inclined than the first pile body at a position on an extension line of the line connecting the breakwater and the first pile body on the inner side of the harbor, and inclined to the first pile body side;
A first connecting body for connecting the outer wall inside the harbor of the breakwater and the first pile body by pin connection at both ends;
A second connecting body for connecting the first pile body and the second pile body by welding at both ends;
Breakwater reinforcement structure characterized by having. A breakwater reinforcement structure that is arranged inside the caisson harbor that constitutes a breakwater on which wave force from the outside of the port acts,
A first pile body composed of any one of a straight pile, a sheet pile, a steel pipe pile, etc., which is arranged in a direction perpendicular to the wall surface inside the harbor of the caisson constituting the breakwater and perpendicular to the wall surface;
A steel pipe pile or an H-shaped steel pile that is inclined and arranged with the top inclined toward the first pile body at a position on the extended line of the line connecting the caisson and the first pile body inside the harbor further than the first pile body is used. A second pile body composed of slanted piles,
A first coupling body that couples the outer wall of the caisson port inside and the first pile body by pin coupling at both ends;
A second connecting body for connecting the first pile body and the second pile body by welding at both ends;
Breakwater reinforcement structure characterized by having. A breakwater reinforcement structure that is arranged inside the caisson harbor that constitutes a breakwater on which wave force from the outside of the port acts,
A plurality of steel pipe sheet piles arranged in parallel using joints in a direction perpendicular to the inner wall surface of the caisson port constituting the breakwater and perpendicular to the wall surface, and a plurality of steel pipe sheet pile caissons A first pile body made of a steel pipe sheet pile having a structure in which an additional plate is joined and arranged on the side and the second connecting body side;
A slant using a steel pipe pile or an H-shaped steel pile that is inclined and arranged with the top inclined to the first pile body side at a position on the extended line of the line connecting the caisson and the straight pile inside the harbor further than the first pile body. A second pile body consisting of piles;
A first connecting body for connecting the outer wall of the caisson port inside and one of the attached plates of the first pile body by pin connection at both ends;
A second connecting body for connecting the first pile body and the second pile body by welding at both ends;
Breakwater reinforcement structure characterized by having. A breakwater reinforcement structure group using the breakwater reinforcement structure according to any one of claims 5 to 7,
A breakwater reinforced structure according to any one of claims 5 to 7, wherein the breakwater reinforcement structure according to any one of claims 5 to 7 is disposed for each caisson of a series of caisson groups constituting a breakwater on which wave force from the outside of the port acts. Reinforcement structure group.

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