JP2004339921A - Connected structure with water sealing structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connected structure with a water sealing structure by which a water sealing function and a connecting function are maintained properly even when structural bodies being units of the connected structure with the water sealing structure move relatively. <P>SOLUTION: The connected structure with the water sealing structure includes a plurality of structural bodies connected in sequence in the width direction and placed between water areas or between the water area and the other area. The water sealing structure of the connected structure comprises an impermeable filler which fills a space of the connection part of the structural bodies, and a side face sealing part provided to connect side walls of the adjacent structural bodies at each of both ends of the space in a direction of the thickness of the structural body. Further, a locking section comprising a plurality of flat boards may be provided, in which locking section the flat boards are arrayed to fit to both opposite end surfaces of the adjacent structural bodies at their connection part to extend in an up-down direction, and the flat boards extended from each of the opposite end surfaces are loosely interlocked. A water sealing member provided in the space of the connection part, or a heat flow kinesis material which flows by heating and fills a gap, made in the space of the connection part of the structural body, may also be provided. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a connection structure provided with a water-blocking structure used as a coastal structure, such as a seawall, a breakwater installed in a coastal water area such as a coast, a river shore, a lake shore, or the like.

  Referring to FIGS. 20 to 22, a description will be given of a connection structure having a conventional waterproof structure. FIG. 20 is a perspective view of a general coastal structure as an example of a connection structure, FIG. 21 is an explanatory view of an installation state of the coastal structure shown in a cross section taken along the line AA in FIG. 20, and FIG. And (b) shows a case where it is installed between the sea area S1 and the sea area S2. FIGS. 22A and 22B are explanatory views of the movement state of the caisson of the coastal structure, wherein FIGS. 22A and 22B are elevation sectional views taken along the line BB in FIG. 20, and FIG. 22C is a sectional view taken along the line CC in FIG. It is a top view.

  As shown in FIG. 21, the continuous structure 10 as a coastal structure such as a seawall structure or a breakwater is, for example, a coastal sea area, that is, between the sea area S1 and another area such as the land G, or between the sea area S1 and the sea area S2. It is installed in the middle of the sea to prevent seawater from entering or to prevent the effects of waves.

  In FIG. 21, the continuous structure 10 exemplifies a coastal structure provided in a coastal sea area. However, the present invention is not limited to the “coastal sea area”, but includes a general water area including a river water area and a lake water area. This applies to coastal structures in "coastal waters". Hereinafter, the conventional example and the embodiment of the present invention will be described by taking the case of a sea area as an example.

  FIG. 20 shows an example of a coastal structure. In FIG. 20, the connection structure 10 is installed between the sea area S1 and the sea area S2. As the connecting structure 10, a structure in which structural units (hereinafter, referred to as “caisson”) 1 as units are sequentially connected in the width direction is generally used, and the caisson 1 is connected via a connecting portion 2. (Here, the “width direction” refers to the direction X in which the caissons 1 are sequentially connected.) The connecting portion 2 of the conventional connecting structure 10 includes a rubber sheet, a fender-type rubber sheet, and other waterproof materials. (For example, refer to Patent Document 1).

  Since the above-described connecting structure 10 is in contact with seawater, the connecting portion 2 of the conventional connecting structure 10 needs to have a function of connecting the caissons 1 and a function of blocking water. However, in the coastal sea area, due to the influence of the soil condition of the seabed Gs and the like, the ground sinks as shown by the two-dot chain line in FIG. 22 (a), and the caisson 1 sinks unequally, and as shown by the two-dot chain line in FIG. 22 (b). 22C, or may move laterally due to a wave or an earthquake as shown by a two-dot chain line in FIG. Moreover, these displacements can reach several tens of centimeters, so that the conventional waterproof structure of the connecting portion 2 cannot follow the displacement, and the cracks in the rubber sheet and the damage of the connecting portion 2 occur. However, there is a problem that the connecting function and the water blocking function may be impaired. In addition, a part of the structure may be damaged by an excessive external force generated by a wave, an earthquake, or the like, and a water-blocking structure capable of maintaining a water-blocking function even in such a case is desired.

JP-A-2002-266344 (page 1, FIGS. 1 to 6)

  The present invention solves the problem of such a conventional connection structure having a water-blocking structure, and has a water-blocking function even when the unit structures of the connection structure having the water-blocking structure, that is, the caissons move with each other. It is an object of the present invention to provide a connection structure having a water-blocking structure capable of maintaining the connection function normally.

  Still another object of the present invention is to provide a connection structure having a water-blocking structure capable of maintaining a water-blocking function even when a part of the structure is damaged.

  (1) The present invention has been made to solve the above-described problems. As a first means, a plurality of structures are sequentially connected in the width direction to connect between water bodies and between water bodies or between water bodies. A connection structure provided with a water-blocking structure provided between the regions, wherein a water-impermeable filler filled in the space of the connection portion of the adjacent structure at the connection portion, and the thickness of the structure And a side sealing portion installed by connecting side walls of the adjacent structures at both ends of the same space in the direction, and a connection structure having a water-blocking structure.

  According to the first means as described above, the water-impervious filler is used to shield the water, and the relative displacement of the structures in the thickness direction is absorbed by the bending deformation of the side sealing portion. The material does not leak from the side wall side, and the connection function and the water blocking function of the connection portion are normally maintained. Even if unequal settlement, inclination, lateral movement, etc. occur in the structure of the connecting structure, these relative displacements or movements can be absorbed and allowed, and the normal connecting function and impermeable function can be maintained.

  (2) As a second means, in the connection structure having the water-blocking structure of the first means, the auxiliary sealing portion that covers the outside of the side sealing portion is installed with a slack. And a connection structure provided with a water-blocking structure.

  According to the second means, in addition to the action of the first means, even when the structure body is relatively displaced or moved and the side sealing part of the connecting part is damaged, the auxiliary sealing part is covered by the side sealing part and slackened. Since it is held and installed, the impermeable filler does not leak to the outside water area or other area side.

  (3) As a third means, in the connection structure provided with the water-blocking structure of the first means or the second means, flat plates are respectively provided on both end faces of the structure adjacent to each other at the connection part. Are extended in the vertical direction and mounted in a plurality, and the flat plates on both end faces are alternately loosely engaged with each other, so that the displacement in the vertical direction and the width direction of the structure is allowed, and the displacement in the thickness direction is restrained. Provided is a connection structure provided with a water-blocking structure, characterized in that the connection structure is provided with a configured locking portion.

  According to the third means as described above, in addition to the action of the first means or the second means, displacement of the structure in the vertical direction and the width direction is allowed, and displacement in the thickness direction is restricted. The elastic deformation of the flat plate of the locking portion and the plastic deformation capability absorb the relative displacement of the structures in the thickness direction, and the connection function and the water blocking function of the connection portion are normally maintained. Even if unequal settlement, inclination, lateral movement, etc. occur in the structure of the connecting structure, these relative displacements or movements can be absorbed and allowed, and the normal connecting function and impermeable function can be maintained.

  (4) As a fourth means, in the connection structure provided with the water blocking structure according to the third means, the flat plate constituting the locking portion has a lower end portion penetrating into a water bottom, and And a connection structure provided with a water-blocking structure, which is connected around the lower end of the flat plate on the other end surface and the bottom of the structure, and is attached in a U-shape around the structure. .

  According to the fourth means, in addition to the function of the third means, the lower end of the flat plate constituting the locking portion goes around the lower end of the flat plate on the other end face and the bottom of the structure for each structure. And are attached in a U-shape, preventing water leakage at the bottom of the structure.

  (5) As a fifth means, in the connection structure provided with the water blocking structure according to the third means or the fourth means, the locking portion winds a spirally wound plate material instead of the flat plate. The center direction is oriented vertically and attached to the opposite end surfaces of the structure at the rear end sides of the windings respectively, and the same plate members of the opposing end surfaces are loosely engaged with each other, and the vertical displacement of the structure is allowed. And a connecting structure provided with a water-blocking structure, wherein the connecting structure is configured to restrain displacement of the structure in a width direction and a thickness direction.

  According to the fifth means, in the operation of the third means or the fourth means, instead of the function of the flat plate of the connecting portion, the structures are separated in the thickness direction or the width direction by the plate material of the engaging portion. In the case of relative displacement, any plate material comes into contact and undergoes elasto-plastic deformation, and when the structure sinks unequally, the plate materials are freely displaced relative to each other, and the relative displacement in each direction of the structure is absorbed, Displacement can be allowed and water leakage can be prevented. Also, the side sealing portion and the auxiliary sealing portion operate in the same manner, so that the water-blocking structure can maintain a normal connection function and a water-blocking function.

  (6) As a sixth means, in the connection structure provided with the water blocking structure according to the third means or the fourth means, the locking portion is formed in an S shape together with the end face instead of the flat plate. The plate material wound in the direction above is oriented in the vertical direction with the winding center direction attached to the opposite end surfaces of the structure at the rear end sides of the winding respectively, and the front end of the plate material is attached to the end surface on the side facing the same plate material. Each of the locking plates is attached to each other, the same plate material on the opposite end face is loosely engaged, the vertical displacement of the same structure is allowed, and the displacement of the same structure in the width direction and the thickness direction is restricted. Provided is a connection structure provided with a water impermeable structure.

  According to the sixth means, in the operation of the third means or the fourth means, the structures are separated from each other in the width direction by the plate material of the engaging portion instead of the function of the flat plate of the connecting portion. When displaced, the tip of each plate is caught in contact with the corresponding locking plate and deformed, and when the structures are displaced so as to approach each other in the width direction, the vicinity of the tip of each plate is pressed against the end surface on the other side. Or, the tip is deformed by contact with the corresponding locking plate, allowing displacement in the width direction of the structure, preventing water leakage, and locking with the tip of each plate even in the case of movement in the thickness direction. The plates can be deformed in contact with each other, allowing displacement and preventing water leakage. Also, the side sealing portion and the auxiliary sealing portion operate in the same manner, so that the water-blocking structure can maintain a normal connection function and a water-blocking function.

  (7) As a seventh means, in the connection structure provided with the impermeable structure according to any one of the first means to the sixth means, a gap generated in the space filled with the water-impermeable filler is removed. A connection structure provided with a water-blocking structure, comprising a tank for a replenisher to be filled.

  According to the seventh means, in addition to the operation of any one of the first means to the sixth means, the structures are relatively displaced relatively to each other to increase the volume of the space between the structures, and the impermeable filler is provided. If the gap is insufficient due to lack of space, the replenisher in the tank is discharged to completely fill the gap, and the head in the connection space is secured higher than the head in the water area on both sides of the structure. The water is improved.

  (8) As an eighth means, in the connection structure provided with the water blocking structure of the first means or the second means, in the space of the connection part, the shielding provided over the vertical direction and the width direction of the structure. A connection structure provided with a water-blocking structure, further comprising a water member.

  In a connection structure having a water-blocking structure according to an eighth aspect, the water-blocking member is made of a material that does not transmit water, and is provided in the space of the connection portion of the structure in the vertical direction of the structure. And over the width direction. Therefore, for example, even if the side sealing portion is broken, water is prevented from entering by the water blocking member, and a normal water blocking function is maintained.

  The water shielding member preferably has flexibility. The water-blocking member having flexibility absorbs and allows relative displacement or movement of the structure even if unequal settlement, inclination, lateral movement, and the like, and has a normal connection function and a water-blocking function. Can be held.

  (9) As a ninth means, in the connection structure provided with the water-blocking structure according to the eighth means, the structure has a notch on the end face, and the end of the water-blocking member is the notch. Provided is a connection structure provided with a water-blocking structure provided in a portion.

According to the ninth means, the width of the space of the connecting portion can be made smaller than the width of the water-impervious member while maintaining the function of the water-impervious member in the eighth means. When the width of the space is reduced, infiltration of water and leakage of the water-impermeable filler can be reduced to a small amount, and the water blocking property is improved.
(10) As a tenth means, in the connection structure having the water-impervious structure of the eighth means or the ninth means, the water-impervious member is a corrugated plate. A connecting structure is provided.

  The corrugated plate easily absorbs compression and bending in the width direction, and has a high ability to absorb and allow relative displacement or movement of the structure caused by uneven settlement, inclination, lateral movement, etc. of the structure, The operation of the eighth means or the ninth means can be further enhanced.

  (11) As an eleventh means, in the connection structure having the water-impervious structure of the tenth means, the corrugated plate is provided with a weak portion at a portion accommodated in the notch. Provided is a connection structure having a water blocking structure.

  In the eleventh means, when a portion of the water shielding member that is not accommodated in the notch portion is damaged, water entering the space portion does not pass through the notch portion and the water shielding member does not pass through the notch portion. It passes through the damaged part and passes through the space in a short time. On the other hand, when the portion accommodated in the notch portion is damaged, the infiltration water is relatively long because the infiltration water cannot pass through the damaged portion of the impermeable member unless it intrudes into the notch portion, It is easy to prevent leakage of infiltration water, and water shielding is improved. In order to lengthen the passage time of the infiltration water, it is preferable that the position where the weak strength portion is provided is closer to the end of the water shielding member.

(12) As a twelfth means, in the connection structure provided with the impermeable structure of the first means to the eleventh means, the heat provided in the space of the connection part in the vertical direction and the width direction of the structure. A connection structure having a water-blocking structure, further comprising: a fluid-blocking material; and a heating means for heating the heat-fluid-blocking material.
In a twelfth aspect, the heat-fluid impermeable material is provided in the space of the connecting portion of the structure in a vertical direction and a width direction of the structure. When the structure has a notch on the end surface, the heat-fluid impermeable material can be provided in the space sandwiched between the non-notches. As the heating means, a heating material that generates heat when energized can be embedded in the heat-fluid impermeable material.

  The heat-fluid waterproofing material changes its shape at normal temperature due to external force, has fluidity at high temperature, and is preferably a material having a low melting point. As the thermal fluid barrier material, for example, asphalt mastic can be used.

  According to the connection structure having the water-impervious structure of the twelfth means, when a part of the water-impervious structure is damaged and a gap is generated in a connection portion of the structure, the heat is applied by the heating means. The fluid waterproofing material is heated and fluidized. The fluidized thermal fluid barrier material fills the gap formed in the connection portion, so that a normal water barrier function is maintained even when a part of the water barrier structure is damaged.

  (1) According to the first aspect of the present invention, the impermeable structure of the connecting structure is provided between the water areas or between the water areas and other areas by sequentially connecting the plurality of structures in the width direction. A connection structure having a water-blocking structure, wherein a water-impermeable filler filled in a space of a connection portion of the adjacent structure at a connection portion, and both ends of the space in the thickness direction of the structure Since it is configured so as to include a side sealing portion provided by connecting the side walls of the adjacent structural bodies, water is impermeable by the impervious filler, and the side sealing portion is deformed by bending. The relative displacement in the thickness direction between the structures is absorbed, the impermeable filler does not leak from the side wall side, and the connection function and the water blocking function of the connection portion are normally maintained. Even if uneven settlement, inclination, lateral movement, etc. occur in the structure of the connection structure, these relative displacements or movements can be absorbed and allowed, and the normal connection function and impermeable function can be maintained, and seawater can be maintained. It is possible to prevent the problem of the influence of the impermeability function such as pollution.

  (2) According to the second aspect of the present invention, in the connecting structure having the water-blocking structure according to the first aspect, the auxiliary sealing portion that covers the outside of the side sealing portion is provided with a slack. With this configuration, in addition to the effect of the first aspect of the present invention, even when the structure is largely displaced or moved and the side sealing portion of the connecting portion is damaged, the auxiliary sealing portion has a slack by covering the side sealing portion. Since the water-impermeable filler does not leak to the outside water area or other areas, the water-impermeable function is normally maintained.

  (3) According to the third aspect of the present invention, in the water blocking structure of the connecting structure according to the first or second aspect, flat plates are respectively provided on both end faces of the adjacent structures in the connecting portion. A plurality of plates extending in the up-down direction are mounted and attached, and the flat plates on both end surfaces are alternately loosely engaged with each other, so that the displacement in the up-down direction and the width direction of the structure is allowed, and the displacement in the thickness direction is restrained. In addition to the effects of the first and second aspects of the present invention, the vertical and lateral displacements of the structure are allowed, and the displacement in the thickness direction is restricted. However, the elastic deformation of the flat plate of the locking portion and the plastic deformation capability absorb the relative displacement in the thickness direction between the structures, and the connection function and the water blocking function of the connection portion are normally maintained. Even if uneven settlement, inclination, lateral movement, etc. occur in the structure of the connection structure, these relative displacements or movements can be absorbed and allowed, and the normal connection function and impermeable function can be maintained, and seawater can be maintained. It is possible to prevent the problem of the influence of the impermeability function such as pollution.

  (4) According to the fourth aspect of the present invention, in the connecting structure provided with the water blocking structure according to the third aspect, the flat plate constituting the locking portion has a lower end portion penetrating into a water bottom, and The structure according to the third aspect of the present invention is configured so that the lower end of the flat plate on the other end face and the bottom of the same structure are connected to each other for each structure and attached in a U-shape to the outer periphery of the structure. In addition to the above, the lower end of the flat plate forming the locking portion is connected to the lower end of the flat plate on the other end face and the bottom of the structure for each structure, and is attached in a U-shape. Water leakage at the bottom of the body is prevented.

  (5) According to the fifth aspect of the present invention, in the connecting structure having the water-blocking structure according to the third or fourth aspect, the locking portion is formed in a spiral shape instead of the flat plate. , The winding center direction is oriented in the vertical direction, attached to the opposite end faces of the structure at the rear end sides of the windings respectively, and the same plate materials of the opposing end faces are loosely engaged with each other, thereby displacing the structure in the vertical direction. And the displacement of the same structure in the width direction and the thickness direction is configured to be restrained. In place of the effect, when the structures are relatively displaced in the thickness direction or the width direction due to the plate material of the engaging portion, any of the plate materials is in contact with each other and deformed elastically and plastically, and the structure is unequally settled. Indicates that the plates are freely displaced relative to each other, The amount of relative displacement absorption can prevent water leakage while permitting displacement. In addition, the side sealing portion and the auxiliary sealing portion have the same effect, so that the water blocking structure can maintain the normal connection function and the water blocking function.

  (6) According to a sixth aspect of the present invention, in the connecting structure provided with the water-blocking structure according to the third or fourth aspect, the locking portion is S-shaped together with the end face instead of the flat plate. A plate material wound so as to form a vertical direction with the winding center direction oriented and attached to the opposite end surfaces of the structure respectively at the rear end sides of the winding, and the end of the same plate material on the end surface facing the same plate material Attach the locking plate opposite to the tip, loosely engage the same plate material on the opposite end surface, allow vertical displacement of the structure, and restrict the width and thickness displacement of the structure In the effect of the third or fourth aspect of the present invention, the structures are separated from each other in the width direction by the plate member of the engaging portion instead of the flat plate effect of the connecting portion. Each plate The tip of the plate is deformed by hooking contact with the corresponding locking plate, and when the structures are displaced to approach each other in the width direction, the vicinity of the tip of each plate material is pressed against the mating end face or the tip corresponds. It deforms in contact with the locking plate, allowing displacement in the width direction of the structure, preventing water leakage, and even when moving in the thickness direction, the tip of each plate material comes into contact with the locking plate, respectively. To allow displacement and prevent water leakage. Further, the side sealing portion and the auxiliary sealing portion have the same effect, so that the water shielding structure can maintain the normal connection function and the water shielding function.

  (7) According to the seventh aspect of the present invention, in the connecting structure provided with the water-blocking structure according to any one of the first to sixth aspects, the connection structure is formed in the space filled with the water-impermeable filler. Is provided with a tank of a replenisher for filling the voids. In addition to the effects of any one of the first to sixth aspects of the present invention, the structures are relatively displaced relative to each other and the space between the structures is reduced. When the volume becomes large and the impervious filler material becomes insufficient and voids are generated, the replenisher in the tank is discharged to replenish the voids completely, and the head in the space of the connecting part becomes the water area on both sides of the structure. Since the head is secured higher than the head, the water shielding property is improved.

  (8) According to the invention of claim 8, in the connection structure provided with the water-blocking structure according to claim 1 or 2, in the space of the connection portion, in the up-down direction and the width direction of the structure. Since it is configured to further include the provided water-blocking member, in addition to the effects of the invention of claim 1 or 2, even if the side sealing portion is broken, the water-blocking member prevents water from entering. , The normal water shielding function is maintained. When the water blocking member has flexibility, the relative displacement or movement of the structure due to unequal settlement, inclination, lateral movement, etc. of the structure is absorbed and allowed, and a normal connection function and water blocking function are provided. Can hold.

  (9) According to the ninth aspect of the present invention, in the connecting structure having the water-blocking structure according to the eighth aspect, the structure has a cutout on the end face, and the end of the water-blocking member is provided. Is configured to be provided in the notch, so that the width of the space of the connecting portion is reduced while maintaining the function of the water blocking member in the connecting structure having the water blocking structure according to claim 8. It can be smaller than the width of the water-blocking member, so that water infiltration and leakage of the water-impermeable filler can be reduced to a small amount, and water-blocking is improved.

  (10) According to the tenth aspect of the present invention, in the connecting structure having the water shielding structure according to the eighth or ninth aspect, the water shielding member is configured to be a corrugated plate. Since the corrugated plate easily absorbs compression and bending in the width direction, and has a high ability to absorb and tolerate relative displacement or movement of the structure caused by uneven settlement, inclination, lateral movement, etc. of the structure, The effects of the invention described in Item 8 or 9 can be further enhanced.

  (11) According to the eleventh aspect of the present invention, in the connecting structure having the water-impervious structure according to the tenth aspect, the corrugated plate may have a weak strength portion in a portion accommodated in the cutout portion. Therefore, when the water blocking member is damaged, the weak portion is damaged. At this time, the intruding water moves in the notch, and the movement path becomes longer, so that the infiltration of the water can be delayed, and in addition to the effect of the tenth aspect of the invention, the water shielding property is further improved.

  (12) According to the twelfth aspect of the present invention, in the connecting structure provided with the water-blocking structure according to any one of the first to eleventh aspects, the space of the connecting portion includes the vertical direction of the structural body and It is configured to further include a heat-fluid impermeable material provided over the width direction and a heating material for heating the heat-fluid impermeable material. The thermo-fluid impermeable material, at normal temperature, changes its shape due to external force, which prevents water from entering the space of the connecting portion, and has high fluidity at high temperatures, so that a part of the impermeable structure is damaged. In the case where a gap is generated in the connection portion of the structure, the heating means heats and fluidizes the heat-fluid impermeable material, and the gap can be filled, so that the impermeable function is normally maintained. .

  With reference to FIG. 1, a connection structure having a water-blocking structure according to a first embodiment of the present invention will be described. FIG. 1 is a cross-sectional plan view showing the configuration of a connection structure having a water-blocking structure according to the present embodiment, which corresponds to the view taken along the line DD in FIG. The connecting structure of the present embodiment is provided between the water area S1 and the water area S2.

  As shown in FIG. 1, the water-blocking structure of the connection structure 100 according to the present embodiment is provided at a connection portion 12 between the caisson 1 and the caisson 1 of the unit structure, and has a connection function and a water-blocking function. ing. The water-blocking structure of the connecting portion 12 connects the caisson 1 with an impermeable filler (for example, a viscous soil having a small water permeability) 14 filled in the space 12a between the end surfaces 1a and 1b of the facing caisson 1. In order to allow relative deformation during that time and prevent the water-impermeable filler material 14 from leaking from the side of the connecting portion 12, the caisson 1 adjacent to each other at both ends of the space 12a in the thickness direction Z of the caisson 1 is formed. A side sealing portion 15 made of a steel plate, a rubber sheet or the like installed by connecting the both side walls 1c, and further, for example, a rubber sheet installed with a slack so as to cover the entire outside of the side sealing portion 15, It is composed of an auxiliary sealing portion 16 made of a material having high elasticity. (Here, the "thickness direction Z" is a horizontal direction perpendicular to the direction X in which the caisson 1 is sequentially connected.)

  In the impermeable structure of the continuous structure of the present embodiment as described above, when the caissons 1 are relatively displaced in the direction of the arrow Z (thickness direction) in FIG. 2, both sides of the connecting portion 12 shown in FIG. The relative displacement of the caisson 1 in the thickness direction Z is absorbed by the bending deformation of the side sealing portion 15 installed on the wall 1c, and the water-impermeable filler 14 filled in the space 12a of the connecting portion 12 is removed from the side wall 1c side. There is no leakage, and the connection function and the water blocking function of the connection portion 12 are normally maintained.

  The caissons 1 can freely move in the direction of the arrow X in FIG. 1 (the direction in which the caissons 1 are sequentially connected, that is, the “width direction”). Is absorbed, and the connection of the connecting portion 12 and the water blocking function are normally maintained.

  When the caisson 1 sinks unequally as shown in FIG. 22 (a), the caissons 1 can freely move in the vertical direction Y, and the connection of the connecting portion 12 and the water blocking function are normal as described above. Is held. In addition, the water-blocking structure exerts the same effect as described above even with respect to the relative displacement and movement caused by the inclination as shown in FIG. 22B, and the connection and the water-blocking function of the connecting portion 12 are normally maintained. You.

  If the caisson 1 is relatively displaced or moved, and the side sealing portions 15 provided on both side walls 1c of the connecting portion 12 are damaged, the impermeable filler 14 may leak from the connecting portion space 12a. However, since the auxiliary sealing portion 16 having large elasticity is installed with a slack covering the entire outside of the side sealing portion 15, the impermeable filler 14 does not leak to the outside seawater side, The impermeable function is maintained normally.

  Further, even if the auxiliary sealing portion 16 is broken and seawater enters the connecting portion space 12a, the filled water-impermeable filler 14 has very poor water permeability. It takes a lot of time to pass through the inside, and during that time, the damaged portion can be repaired, so that the influence of seawater pollution and the like can be prevented.

  As described above, according to the connecting structure having the water blocking structure of the present embodiment, the space 12a of the connecting portion 12 between the opposing caissons 1 is filled with the water-impermeable filler 14 to connect the caissons 1. Since the side sealing portion 15 is provided on the side wall 1c, and the auxiliary sealing portion 16 is further provided so as to cover the outside of the side sealing portion 15, even if the caisson connection structure is unevenly settled, inclined, laterally moved, or the like. In addition, these relative displacements or movements can be absorbed and allowed, the normal connection function and the water blocking function can be maintained, and the effect of seawater pollution or the like can be prevented.

  Referring to FIGS. 2 to 6, a connecting structure having a water-blocking structure according to a second embodiment of the present invention will be described. FIG. 2 is a cross-sectional plan view showing a configuration of a connecting structure having a water-blocking structure according to the present embodiment, which corresponds to the above-described view taken along the line DD in FIG. 20, and FIGS. It is an enlarged view of a part, and is an operation explanatory view of a connecting structure provided with a water blocking structure of the present embodiment, and FIG. 5 is the above-mentioned FIGS. 22 (a) and 22 (b) taken along the line FF in FIG. FIG. FIG. 6 is an explanatory view of a modified example of the locking portion in the connection structure having the water blocking structure of the present embodiment, and is an enlarged view corresponding to FIGS. The connecting structure of the present embodiment is provided between the water area S1 and the water area S2.

  As shown in FIG. 2, the water-blocking structure of the connection structure 100 according to the present embodiment is provided at a connection portion 12 between the caisson 1 and the caisson 1 of the unit structure, and has a connection function and a water-blocking function. ing. That is, a plurality of flat plates 13a are provided on the end surface 1a of one of the opposing caissons 1, and a plurality of flat plates 13b are provided on the end surface 1b of the other caisson 1. The entire length of the caisson 1 in the vertical direction (the depth direction of the sea area) Y is provided. And vertically arranged on the end faces 1a and 1b to form a locking portion 13 in which the flat plates 13a and 13b are alternately loosely engaged with each other, and the vertical direction Y and the width direction X of the caisson 1 are formed. Is allowed, and the movement in the thickness direction Z is restricted. (Here, the "thickness direction Z" is a horizontal direction perpendicular to the direction X in which the caisson 1 is sequentially connected.)

  The water-blocking structure of the connecting portion 12 is made of a water-impermeable filler (for example, a clayey material having a small water permeability) filled in the locking portion 13 and the space 12a between the opposed end surfaces 1a and 1b including the locking portion 13. 14 and both ends in the thickness direction Z of the space 12a so as to allow the caisson 1 to be connected to each other and allow relative deformation therebetween to prevent the water-impermeable filler 14 from leaking from the side of the connecting portion 12. And a side sealing portion 15 made of a steel plate, a rubber sheet, or the like, which is installed by connecting both side walls 1c of the adjacent caissons 1, and further, is installed with a slack so as to cover the entire outside of the side sealing portion 15. Further, it is constituted by an auxiliary sealing portion 16 made of, for example, a rubber sheet, a highly elastic material, or the like.

  As shown in FIG. 5, the flat plates 13a and 13b constituting the locking portion 13 have their lower ends 17a and 17b penetrating into the seabed Gs, and furthermore, each caisson 1 has a flat plate on the other end face. The lower end and the bottom of the caisson 1 are connected around and attached to the outer periphery of the caisson 1 in a U-shape.

  Although FIG. 2 shows a case where three sets of the locking portions 13 are installed in the caisson thickness direction Z, the number of the installed sets is not particularly limited.

  In addition, although the case where the flat plates 13a and 13b constituting the locking portion 13 are attached perpendicular to the caisson end surfaces 1a and 1b is shown, as shown in FIG. Alternatively, the locking portions 23 may be formed by alternately and loosely engaging the flat plates 23a and 23b attached at a predetermined angle.

  In the water blocking structure of the continuous structure according to the present embodiment as described above, when the caissons 1 are relatively displaced in the arrow Z direction (thickness direction) of FIG. At this time, the relative displacement is absorbed by the elastic deformation of the flat plates 13a and 13b, and when the relative displacement amount is further increased, the relative displacement is absorbed by the plastic deformation capability of the flat plates. The relative displacement in the thickness direction Z between the caissons 1 is absorbed by the bending deformation of the side sealing portions 15 provided on both side walls 1c of the connecting portion 12 shown in FIG. The material 14 does not leak from the side wall 1c side, and the connecting function and the water blocking function of the connecting portion 12 are normally maintained.

  The caissons 1 are freely movable in the direction of the arrow X (width direction) of FIG. 4, and the relative displacement of the caissons 1 in the width direction X is absorbed by the bending deformation of the side sealing portion 15, and the connection of the connecting portions 12 is performed. , The water blocking function is maintained normally.

  When the caisson 1 sinks unequally as shown in FIG. 22 (a), the caissons 1 can freely move in the vertical direction Y, and the connection of the connecting portion 12 and the water blocking function are normal as described above. Is held. In addition, the water-blocking structure exerts the same effect as described above even with respect to the relative displacement and movement caused by the inclination as shown in FIG. 22B, and the connection and the water-blocking function of the connecting portion 12 are normally maintained. You.

  Even when the bottom of the caisson 1 slightly rises above the seabed Gs due to the relative displacement and the movement, the lower ends 17a and 17b of the flat plates 13a and 13b of the locking portion 13 are penetrated into the seabed Gs, and Each time, the lower end of the flat plate on the other end face is connected around the bottom of the caisson 1 and attached to the outer periphery of the caisson 1 in a U-shape, so there is no water leakage from the bottom of the caisson 1 and the water blocking function is normal. Will be retained.

  If the caisson 1 is relatively displaced or moved, and the side sealing portions 15 provided on both side walls 1c of the connecting portion 12 are damaged, the impermeable filler 14 may leak from the connecting portion space 12a. However, since the auxiliary sealing portion 16 having large elasticity is installed with a slack covering the entire outside of the side sealing portion 15, the impermeable filler 14 does not leak to the outside seawater side, The impermeable function is maintained normally.

  Further, even if the auxiliary sealing portion 16 is broken and seawater enters the connecting portion space 12a, the filled water-impermeable filler 14 has very poor water permeability. It takes a lot of time to pass through the inside, and during that time, the damaged portion can be repaired, so that the influence of seawater pollution and the like can be prevented.

  As described above, according to the connection structure having the water blocking structure of the present embodiment, the flat plates 13a and 13b are erected on the facing end surfaces 1a and 1b of the caisson 1 so as to extend in the vertical direction Y. A plurality of arrangements are provided with locking portions 13 in which the flat plates 13a and the flat plates 13b are loosely engaged alternately, and the caisson 1 is allowed to move in the vertical (depth) direction Y and the width direction X, and is moved in the thickness direction Z. Are constrained, the space 12a of the connecting portion 12 between the caissons 1 is filled with a water-impermeable filler 14, and the flat plates 13a, 13b constituting the locking portion 13 have lower ends 17a, 17b. Is penetrated into the seabed Gs, and each caisson 1 is connected around the lower end of the flat plate on the other end surface to the bottom of the caisson 1, is attached in a U-shape around the caisson 1, and has a connecting portion side wall 1 c of the caisson 1 Is provided with a side sealing portion 15, Since the auxiliary sealing portion 16 is installed so as to cover the outside of the face sealing portion 15, even if uneven settlement, inclination, lateral movement, etc. occur in the caisson connection structure, these relative displacements or movements are absorbed and allowed, and normal It is possible to maintain an effective connection function and a water blocking function, and to prevent the effects of seawater pollution and the like.

  Referring to FIG. 7, a description will be given of a connection structure having a water-blocking structure according to a third embodiment of the present invention. FIG. 7 is an explanatory view of a locking portion, which is a main part of a connection structure having a water-blocking structure according to the present embodiment, and shows a range similar to FIGS. 3 and 4 described above. The present embodiment is the same as the above-described second embodiment except that the structure of the locking portion of the connecting portion is different, and the other portions are the same. Therefore, the different points will be mainly described below.

  As shown in FIG. 7, the locking portion 33 of the connecting portion 32 of the present embodiment is configured such that the spirally formed plate members 33 a and 33 b are respectively formed on the opposite end surfaces 1 a and 1 b of the caisson 1 facing each other. The two plate members 33a and 33b are loosely engaged with each other by being oriented in the up-down direction Y and attaching the winding end side to the entire length of the caisson 1 in the up-down direction (depth direction) Y.

  This allows the caisson 1 to move in the vertical direction Y while restricting the movement in the thickness direction Z and the width direction X. As in the second embodiment, the connection including the locking portion 33 is performed. In the part 32, a space 32 a between the end surfaces 1 a and 1 b of the caisson 1 facing each other is filled with a water-impermeable filler 14, and both side walls 1 c of the caisson are provided with a side sealing portion 15 and an outer periphery of the side sealing portion 15. Is provided with an auxiliary sealing portion 16.

  The flat plates 33a and 33b constituting the locking portion 33 have their lower ends penetrated into the sea floor Gs, and are further connected to the lower end of the flat plate on the other end face and the bottom of the caisson 1 for each caisson 1. It is similar to the first embodiment in that it is attached in a U-shape to the outer periphery of the caisson 1.

  According to the connection structure having the water-blocking structure of the present embodiment, both caissons 1 are displaced relative to each other in the thickness direction (Z direction in FIG. 3) or in the width direction (X direction in FIG. 4). When the plate members 33a and 33b come into contact with each other and undergo elasto-plastic deformation, and when the caisson 1 sinks unequally, the plate members 33a and 33b are freely displaced relative to each other, whereby the relative displacement of the caisson 1 in each direction is absorbed. The side sealing portion 15 and the auxiliary sealing portion 16 also operate in the same manner as described above, whereby the water shielding structure has an effect that the normal connection function and the water shielding function can be maintained.

  Referring to FIGS. 8 and 9, a description will be given of a connection structure having a water-blocking structure according to a fourth embodiment of the present invention. FIG. 8 is an explanatory view of a locking portion, which is a main part of a connection structure having a water-blocking structure according to the present embodiment, and shows the same range as FIGS. 3 and 4 described above. 9A and 9B are diagrams illustrating the operation of the locking portion of the present embodiment. FIG. 9A illustrates a case where caissons are separated from each other in the width direction X, and FIG. Further, the present embodiment is the same as the above-described second embodiment except that the structure of the locking portion of the connecting portion is different, and the other portions are the same. Therefore, the differences will be mainly described below.

  As shown in FIG. 8, the locking portion 43 of the connecting portion 42 according to the present embodiment is wound around the respective end surfaces 1 a and 1 b of the caisson 1 facing each other so that the respective end surfaces are also combined into an S shape. The formed plate members 43a and 43b are oriented with the winding center direction in the vertical direction Y, the rear end side of the winding is attached over the entire length of the caisson 1 in the vertical direction (depth direction) Y, and is opposed to the plate members 43a and 43b. Locking plates 43d and 43c opposed to the tips a and b of the plate members 43a and 43b are attached to the end surfaces 1b and 1a on the side of the contact. The two plate members 43a and 43b are loosely engaged with each other, so that the caisson 1 is allowed to move in the vertical direction Y, and is restricted from moving in the width direction X and the thickness direction Z, as in the second embodiment. The space 42a between the facing end surfaces 1a and 1b of the caisson 1 of the connecting portion 42 including the locking portion 43 is filled with the water-impermeable filler 14, and the side walls 1c of the caisson are filled with the side sealing portions 15 and An auxiliary sealing portion 16 is provided on the outer periphery of the side sealing portion 15.

  The S-shaped plate members 43a and 43b constituting the locking portion 43 have their lower ends penetrated into the sea floor Gs, and go around the lower end of the flat plate on the other end surface and the bottom of the caisson 1 for each caisson 1. It is the same as the second embodiment in that it is connected and attached to the outer periphery of the caisson 1 in a U-shape.

  According to the connection structure having the water blocking structure of the present embodiment, as shown in FIG. 9A, when the caissons 1 are displaced so as to be separated from each other in the width direction X, the tip side a of the plate material 43a The stopper plate 43d and the tip side b of the plate material 43b are each caught in contact with the stopper plate 43c and deformed, allowing displacement of the caisson 1 in the width direction X and preventing water leakage by the contact point. it can.

  Further, as shown in FIG. 9B, when the caissons 1 are displaced so as to approach each other in the width direction X, the vicinity of the front end of the plate material 43a is pressed against the counterpart end surface 1b, or the front end a is engaged as described above. Contact with the stopper plate 43d, the vicinity of the front end b of the plate member 43b is pressed against the mating end surface 1a, or the front end b is deformed by contacting with the locking plate 53c, allowing displacement of the caisson 1 in the width direction X. The contact point can prevent water leakage.

  Also, when the caisson 1 moves in the thickness direction Z, similarly to the above, the tips of the plate members 43a and 43b and the locking plates 53d and 53c respectively contact and deform, and the displacement of the caisson 1 in the thickness direction Z is performed. And water leakage can be prevented by the contact point.

  Thereby, there is an effect that the impermeable structure can maintain a normal connection function and impermeable function. Other operations and effects are the same as those of the second embodiment.

  Referring to FIGS. 10 and 11, a description will be given of a connection structure having a water-blocking structure according to a fifth embodiment of the present invention. FIG. 10 is an explanatory view of a replenisher tank of a connection structure having a water-blocking structure of the present embodiment, which is shown in a cross section in the same direction as FIG. 5, and FIG. 11 is a GG arrow in FIG. 10. It is sectional drawing by visual observation. In the present embodiment, a tank 51 for a replenisher is added to a connection structure having a water-blocking structure according to the first to fourth embodiments described above to improve the function thereof. The other points are the same as those of the above-described embodiment. Therefore, different points will be mainly described below by taking as an example a case based on the first or second embodiment. The same applies to the case based on the other embodiments described above.

  As shown in FIGS. 10 and 11, in the present embodiment, a tank 51 in which a replenisher (water or other liquid or fluid material) 50 is stored above a connection portion 12 between the caisson 1 and the caisson 1. When the caissons 1 are relatively displaced relative to each other and the volume of the space 12a between the caissons 1 is increased, the water impervious filler 14 runs short and the gap v is generated, and the water blocking function is reduced. There is fear. In such a case, a valve (not shown) of the drain port 51a of the tank 51 is operated to discharge the replenishing liquid 50 in the tank 51 to completely replenish the space v.

  In the case of the present embodiment, the space 12a of the connecting portion 12 of the caisson 1 filled with the water-impermeable filler 14 is filled with water or the replenisher 50 or a similar liquid in advance to be saturated. And

  When the caissons 1 are relatively displaced relative to each other as indicated by a two-dot chain line, and as shown in FIG. 10, when a gap v is formed in the space 12a between the caissons 1, the drain port 51a is opened and the replenisher 50 is discharged. To fill the space v and fill the space 12a with water.

  When the space 12a is full as described above, the head ha in the space 12a of the connecting portion 12 is secured higher than the head h1 of the sea area S1 and the head h2 of the sea area S2 on both sides of the caisson 1, as shown in FIG. Therefore, penetration of seawater from the sea area S1 to the sea area S2 or in the opposite direction is less likely to occur, and there is an effect that the water shielding property is improved.

  Referring to FIG. 12, a description will be given of a connection structure having a water-blocking structure according to a sixth embodiment of the present invention. The connecting structure of the present embodiment is provided between the water area S1 and the water area S2. FIG. 12 is a cross-sectional plan view showing the configuration of the connection structure having the water impermeable structure according to the present embodiment, which corresponds to the view taken along the line DD in FIG.

  In FIG. 12, a connection structure having a water-blocking structure according to the present embodiment is installed at a connection portion 12 between adjacent caissons 1. The water-blocking structure of the connecting portion 12 includes a corrugated steel plate 18 as a water-blocking member, a water-impermeable filler (for example, a viscous soil having a small water-permeability coefficient) 14 filled in the space 12a between the facing end surfaces 1a and 1b, A side sealing portion 15 made of a steel plate, a rubber sheet, or the like is provided by connecting both side walls 1c of the adjacent caisson 1 at both ends in the thickness direction Z of the space 12a. The corrugated steel sheet 18 is provided in the space 12a in the width direction (Z direction) and the vertical direction (Y direction) of the caisson 1. The ends of the corrugated steel plate 18 are joined to the end surfaces 1a and 1b of the caisson 1. The corrugated steel plate 18 is a thin corrugated steel plate and has flexibility in each of the X, Y, and Z directions.

  In the connection structure having the water-blocking structure according to the present embodiment, the side sealing portions 15 are, as with the side sealing portions 15 in the first embodiment, in the directions indicated by arrows X, Y, and Z in FIG. When the relative displacement occurs, the relative displacement is absorbed, and the connecting function and the water blocking function of the connecting portion 12 are normally maintained. The water-impermeable impermeable material 14 of the present embodiment delays the infiltration of water even when water enters the space of the connecting portion, similarly to the water-impermeable impermeable material of the first embodiment. The water blocking structure of the present embodiment further includes a corrugated steel plate 18 as a water blocking member. The corrugated steel plate 18 is provided in the X direction and the Y direction of the space 12a, and does not transmit water because it is a steel plate. In addition, leakage of contaminated water to other water areas can be prevented. In addition, the corrugated steel plate 18 is a thin corrugated steel plate and is flexible, and can absorb the relative displacement between the caissons 1 in the directions of arrows X, Y, and Z in FIG. Water can be prevented from entering even when the relative displacement or movement occurs.

  As described above, according to the connection structure having the water-blocking structure of the present embodiment, since the corrugated steel plate 18 is provided in the space 12a in the width direction and the height direction of the caisson 1, the side sealing portion 15 is damaged. Even in this case, the infiltration of water is prevented, and the normal water shielding function is maintained.

  Referring to FIGS. 13 to 16, a connecting structure having a water-blocking structure according to a seventh embodiment of the present invention will be described. The connecting structure of the present embodiment is provided between the water area S1 and the water area S2. 13 is a plan cross-sectional view showing the configuration of a connection structure having a water-blocking structure according to the present embodiment, which corresponds to a view taken along the line DD in FIG. 20, and FIG. 14 is an enlarged view of a portion I in FIG. FIG. 15 is an enlarged view of a portion J in FIG. 14, and FIG. 16 is an operation explanatory view of a connecting structure provided with a water blocking structure of the present embodiment.

  As shown in FIG. 13, the water-blocking structure of the present embodiment includes a side sealing portion 15, a water-impermeable water-blocking material 14, and a corrugated steel plate 18 as a water-blocking member. In the water shielding structure of the present embodiment, cutouts 1d are provided on the end surfaces 1a and 1b of the caisson 1 to be connected. The notch 1d is provided at a position where the end faces 1a and 1b face each other, over the Y direction of the caisson 1. As in the sixth embodiment, the corrugated steel sheet 18 is a thin corrugated steel sheet and has flexibility in each of the X, Y, and Z directions. As in the first embodiment, the side sealing portions 15 are installed by connecting both side walls 1c of the adjacent caissons 1. The impermeable water-blocking material 14 is filled in the space 12a and also in the notch 1d. The corrugated steel plate 18 is provided so that its end is accommodated in the notch 1d, and the end of the corrugated steel plate 18 is joined to the bottom of the notch 1d. As shown in FIG. 14, the corrugated steel sheet 18 is joined to the bottom of the notch 1 d via a joining material 19. As shown in FIG. 15, the corrugated steel sheet 18 has a low strength portion 18 a at a portion close to the joint with the caisson 1.

  The side surface sealing portion 15, the water-impermeable water-blocking material 14, and the corrugated steel plate 18 of the connecting structure of the present embodiment have the same functions as those of the 15, 16, and 18 of the sixth embodiment. Further, in the water shielding structure of the present embodiment, the notch 1d is provided in the caisson 1 and both ends in the X direction of the corrugated steel plate 18 are accommodated in the notch 1d, so that the corrugated steel plate 18 has the same size as the sixth embodiment. The width of the space 12a of the connecting portion 12 can be reduced while using the corrugated steel plate 18. When the width of the space 12a is reduced, intrusion of water from the body of water into the connecting portion 12 and diffusion of water when water invades the connecting portion 12 can be suppressed. Therefore, the water-blocking structure of the present embodiment has the effect of absorbing the relative displacement or movement of the caissons 1 to maintain the connection function and the water-blocking function as well as the water-blocking structure, similarly to the water-blocking structure of the sixth embodiment. And the amount of leakage of the water-impermeable filler can be kept small.

  In the water blocking structure of the present embodiment, if the side sealing portion 15 and the corrugated steel plate 18 are damaged, the water impermeable water blocking material 14 prevents the leakage of water. However, in this case, when the central point a of the corrugated steel plate 18 is damaged as shown in FIG. 16, water does not pass through the notch 1d as shown by the solid line arrow in FIG. It penetrates and passes through the corrugated steel sheet 18 in a short time. In the present embodiment, the corrugated steel plate 18 is provided with the low-strength portion 18a at the point b close to the joint with the caisson 1, so that the point b is damaged first when an excessive external force is applied. . At this time, the water cannot pass through the corrugated steel plate 18 unless it enters the vicinity of the bottom of the notch 1d as shown by the one-dot chain line arrow in FIG. 16, and it takes a relatively long time to pass through the space 12a. Can be delayed.

  According to the water shielding structure of the present embodiment, since the end of the corrugated steel plate 18 is joined to the notch 1d provided in the end surfaces 1a and 1b of the caisson 1, the space is maintained while maintaining the action of the corrugated steel plate 18. The width of 12a can be reduced, and the infiltration of water and the leakage of the impermeable impermeable material 14 can be reduced to a small amount, and the impermeable function of the impermeable structure is maintained. Further, in the water-blocking structure of the present embodiment, since the corrugated steel plate 18 has the weakly weak portion 18a near the joint with the caisson 1, when the corrugated steel plate 18 is damaged, the weakly weak portion 18a may be damaged. Thus, it is possible to delay the invasion of water by lengthening the path of the intruding water and improve the water blocking.

  Referring to FIGS. 17 and 18, a description will be given of a connection structure having a water-blocking structure according to an eighth embodiment of the present invention. FIG. 17 is a plan sectional view showing a configuration of a connection structure having a water-blocking structure according to the present embodiment, which corresponds to a view taken along the line DD in FIG. 20, and FIG. 18 is an asphalt mastic according to the present embodiment. FIG. 2 is a diagram illustrating a configuration of an apparatus.

  As shown in FIG. 17, the water-blocking structure of the present embodiment includes a side sealing portion 15, a water-impermeable water-blocking material 14, a corrugated steel plate 18 as a water-blocking member, and asphalt as a heat-fluid water-blocking material. Mastic 60. As in the seventh embodiment, a notch 1d is provided in the end surfaces 1a and 1b of the caisson 1. The asphalt mastic 60 is in contact with both the end surfaces 1a and 1b in the vertical direction (Y) and the width direction (X) in the non-notch portion where the notch portion 1d is not provided in the end surfaces 1a and 1b. It is provided as follows. The asphalt mastic 60 has a property of changing its shape at room temperature in response to an external force and has water impermeability. In the asphalt mastic 60, a heating rod 61 which is a part of a heating device for heating the asphalt mastic 60 is embedded. The heating rod 61 is made of a material that generates heat when energized. The heating device for the asphalt mastic 60 includes a heating rod 61, a cable 62, and a power supply 63. The heating rod 61 is connected to the power supply 63 by the cable 62 as shown in FIG.

  The side surface sealing portion 15, the water-impermeable water-blocking material 14, the corrugated steel plate 18, and the notch portion 1d of the water-blocking structure of the present embodiment are the side sealing portion 15, the water-impermeable water-blocking material 14, and the corrugated portion of the sixth embodiment. The same operation as that of the steel plate 18 and the notch 1d is achieved. In the present embodiment, the asphalt mastic 60 also has an effect of preventing water from entering when the space enters into the space 12a of the connecting portion 12 and preventing leakage of the impermeable water-blocking material 14.

  In the water blocking structure of the present embodiment, if the side sealing portion 15 or the corrugated steel plate 18 is damaged and the space 12 a of the connecting portion 12 is enlarged and a gap is generated, the heating rod 61 is connected to the power source 63 via the cable 62. And the asphalt mastic 60 is fluidized by the heat generated from the heating rod 61. The fluidized asphalt mastic 60 fills the gap created in the connecting portion 12 to prevent water from entering and leakage of the impermeable water-blocking material 14.

  According to the water-blocking structure of the present embodiment, the asphalt mastic 60, which is a heat-fluid water-blocking material, is provided in the space 12a of the connecting portion 12 of the caisson 1 so as to be in contact with both end surfaces 1a and 1b. It is possible to prevent infiltration and leakage of the impermeable water-impervious material 14 and improve the water-impermeability function. Furthermore, even when a part of the impermeable structure is broken and a gap is formed in the connecting portion 12 of the caisson 1, the gap created by heating and fluidizing the asphalt mastic 60 can be filled, The water blocking function can be maintained.

  With reference to FIG. 19, a description will be given of a connection structure provided with a water blocking structure according to a ninth embodiment of the present invention. FIG. 19 is a cross-sectional plan view showing the configuration of the connection structure provided with the water blocking structure according to the present embodiment, which corresponds to the view taken along the line DD in FIG. The connecting structure of the present embodiment is provided between the water area S1 and the water area S2.

  The water impermeable structure of the present embodiment is obtained by further adding a heat-fluid impermeable material to the water impermeable structure of the first embodiment. As shown in FIG. It includes a sealing portion 15, an impermeable water-blocking material 14, an auxiliary sealing portion 16, and an asphalt mastic 60 as a heat-fluid water-blocking material. The asphalt mastic 60 is provided in the space 12a so as to be in contact with both the end surfaces 1a and 1b of the caisson 1 in the vertical direction (Y) and the width direction (X) of the caisson 1. As in the eighth embodiment, a heating rod 61, which is a part of a heating device, is embedded in the asphalt mastic 60. The heating rod 61 is heated by a heating device provided with a cable 62 and a power supply 63 as in the eighth embodiment.

  The side surface sealing portion 15, the water-impermeable water-blocking material 14, and the auxiliary sealing portion 16 have the same operations as those in the first embodiment. The asphalt mastic 60 and the heating device operate similarly to the asphalt mastic 60 and the heating device in the eighth embodiment. That is, in the event that the side sealing portion 15 or the auxiliary sealing portion 16 is damaged and a gap is created in the space 12 a between the caissons 1, power is supplied from the power source 63 to the heating rod 61 via the cable 62, The asphalt mastic 60 is fluidized by the heat generated from 61. The fluidized asphalt mastic 60 fills the gap created in the connecting portion 12 to prevent water from entering and leakage of the impermeable water-blocking material 14.

  According to the water-blocking structure of the present embodiment, the asphalt mastic 60, which is a heat-fluid water-blocking material, is provided in the space 12a of the connecting portion 12 of the caisson 1 so as to be in contact with both end surfaces 1a and 1b. It is possible to prevent infiltration and leakage of the impermeable water-impervious material 14 and improve the water-impermeability function. Furthermore, even when a part of the impermeable structure is broken and a gap is formed in the connecting portion 12 of the caisson 1, the gap created by heating and fluidizing the asphalt mastic 60 can be filled, The water blocking function can be maintained.

  Although the present invention has been described with reference to the illustrated embodiments, the present invention is not limited to the above-described embodiments, and various modifications may be made to the specific structure within the scope of the present invention. Nor. Further, by combining the above-described embodiments as appropriate, the connection function and the water blocking function are further improved.

  In the above embodiment, the case where the connecting structure 100 is a coastal structure in a coastal sea area has been described as an example. However, the present invention is applicable to a general coastal water area including a case where the water area is a river water area, a lake water area, or the like. As described above, the same effects can be obtained by applying the present invention.

FIG. 21 is a plan cross-sectional view illustrating a configuration of a connection structure provided with a water blocking structure according to the first embodiment of the present invention, and corresponds to a view taken along the line DD in FIG. 20. FIG. 21 is a plan cross-sectional view illustrating a configuration of a connection structure provided with a water-blocking structure according to a second embodiment of the present invention, and corresponds to a view taken along the line DD in FIG. 20. FIG. 4 is an enlarged view of a portion E in FIG. 2, and is an operation explanatory view of a connecting structure having a water-blocking structure according to a second embodiment of the present invention. FIG. 4 is an enlarged view of a portion E in FIG. 2, and is an operation explanatory view of a connecting structure having a water-blocking structure according to a second embodiment of the present invention. FIG. 23 is an elevational cross-sectional view of the connection structure taken along line FF in FIG. 2, showing the same range as in FIGS. 22 (a) and 22 (b). It is explanatory drawing of the modification of the latching part in the connection structure provided with the water blocking structure of 2nd Embodiment of this invention, and shows the same range as FIG. It is explanatory drawing of the locking part which is the principal part of the connection structure provided with the water blocking structure which concerns on 3rd Embodiment of this invention, and shows the same range as FIG.3, FIG.4. It is explanatory drawing of the locking part which is the principal part of the connection structure provided with the water blocking structure which concerns on Embodiment 4 of this invention, and shows the range similar to FIG. 3, FIG. It is operation | movement explanatory drawing of the locking part of 4th Embodiment, (a) shows when caisson separates in the width direction X, (b) shows when it approaches in the width direction X. It is explanatory drawing of the replenishment tank of the connection structure provided with the water blocking structure which concerns on Embodiment 5 of this invention, and shows the cross section of the same direction as FIG. It is sectional drawing by the HH arrow in FIG. FIG. 21 is a plan cross-sectional view illustrating a configuration of a connection structure provided with a water blocking structure according to a sixth embodiment of the present invention, and corresponds to a view taken along the line DD in FIG. 20. FIG. 21 is a plan cross-sectional view illustrating a configuration of a connection structure provided with a water blocking structure according to a seventh embodiment of the present invention, and corresponds to a view taken along the line DD in FIG. 20. It is an enlarged view of the I section in FIG. It is an enlarged view of the J section in FIG. It is an operation explanatory view of a connection structure provided with a water blocking structure according to a seventh embodiment of the present invention. FIG. 21 is a cross-sectional plan view showing a configuration of a connection structure provided with a water blocking structure according to an eighth embodiment of the present invention, and corresponds to a view taken along the line DD in FIG. It is a figure showing composition of an asphalt mastic and a heating device concerning an 8th embodiment of the present invention. FIG. 21 is a plan cross-sectional view illustrating a configuration of a connection structure provided with a water blocking structure according to a ninth embodiment of the present invention, and corresponds to a view taken along the line DD in FIG. 20. It is a perspective view of a general coastal structure as an example of a connection structure. It is installation explanatory drawing of the coastal structure shown by the AA arrow cross section in FIG. 20, (a) was installed between land G and sea area S1, (b) was installed between sea area S1 and sea area S2. Show the case. It is explanatory drawing of the movement state of the caisson of a coastal structure, (a), (b) is BB arrow elevation sectional drawing in FIG. 20, (c) is CC arrow plan view in FIG. is there.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Caisson 1a, 1b End surface 1c Side wall 1d Notch part 2, 12, 22, 32, 42 Connecting part 10 Connecting structure 12a, 32a, 42a Space 13, 23, 33, 43 Locking part 13a, 23a, 33a, 43a Plate 13b, 23b, 33b, 43b Plate 14 Water-impermeable filler 15 Side seal 16 Auxiliary seal 17a, 17b Lower end 18 Corrugated steel plate 18a Low strength part 19 Bonding material 43c, 43d Lock plate 50 Replenisher 51 Tank 51a Drainage port 60 Asphalt mastic 61 Heating rod 62 Cable 63 Power supply 100 Connecting structure

Claims (12)

A connection structure having a water-blocking structure provided by sequentially connecting a plurality of structures in a width direction between a water area and a water area or between a water area and another area, wherein a connection part of the adjacent structures is provided. And a side sealing portion installed by connecting the side walls of the adjacent structure at both ends of the space in the thickness direction of the structure in the thickness direction of the structure. Connection structure with a water-blocking structure. The connection structure having a water-blocking structure according to claim 1, wherein the auxiliary sealing portion that covers the outside of the side sealing portion is installed with a slack. . 3. The connecting structure having a water-blocking structure according to claim 1 or 2, wherein a plurality of flat plates are vertically arranged on both end surfaces of the structure adjacent to each other at the connecting portion in the vertical direction. Attachment, the flat plate of the both end surfaces are alternately loosely engaged with each other, the structure is provided with a locking portion configured to allow displacement in the up-down direction and width direction and to restrain displacement in the thickness direction. Connection structure with a water-blocking structure. The connecting structure provided with a water blocking structure according to claim 3, wherein a lower end of the flat plate constituting the locking portion penetrates into a water bottom, and the lower end of the flat plate on the other end surface is provided for each of the structures. A connection structure provided with a water-blocking structure, wherein the connection structure is connected around the bottom of the structure and the bottom of the structure and is attached in a U-shape around the structure. 5. The connection structure provided with a water-blocking structure according to claim 3, wherein the locking portion is formed by spirally winding a plate material instead of the flat plate and orienting the plate material in a winding center direction in a vertical direction. 6. Attach to the opposite end faces of the structure at the rear end sides of the windings, respectively, and loosely engage the same plate material on the opposite end faces, allow vertical displacement of the structure, allow the width and thickness of the structure A connection structure provided with a water-blocking structure, wherein the connection structure is configured to restrain displacement in a vertical direction. 5. The connecting structure having a water-blocking structure according to claim 3, wherein the locking portion is formed by winding a plate material wound in an S shape together with the end face instead of the flat plate in a winding center direction. 6. Are oriented in the up-down direction and attached to the opposite end faces of the structure at the rear end sides of the windings respectively, and the end faces on the side facing the same plate material are respectively attached with locking plates opposed to the front end of the same sheet material. The water blocking structure is characterized in that it is configured to loosely engage the same plate materials on the end faces to be connected, to allow vertical displacement of the structure, and to restrain displacement in the width direction and thickness direction of the structure. Connected structure provided with 7. The connection structure provided with a water-blocking structure according to claim 1, further comprising a tank of a replenishing liquid for filling a void generated in the space filled with the water-impermeable filler. A connecting structure provided with a water-blocking structure, characterized in that: The connection structure provided with a water-blocking structure according to claim 1, further comprising a water-blocking member provided in a space of the connection portion in a vertical direction and a width direction of the structure. Connection structure provided with. The connection structure provided with a water-blocking structure according to claim 8, wherein the structure has a notch in the end face, and the end of the water-blocking member is provided in the notch. Connected structure with a water-blocking structure. The connection structure provided with a water blocking structure according to claim 8 or 9, wherein the water blocking member is a corrugated plate. The connection structure having a water-blocking structure according to claim 10, wherein the corrugated steel sheet is provided with a low-strength portion at a portion where the corrugated steel plate is accommodated in the cutout portion. object. A connection structure provided with a water-blocking structure according to any one of claims 1 to 11, wherein a heat-fluid water-blocking material provided in a space of the connection portion over a vertical direction and a width direction of the structure. And a heating means for heating the heat-fluid impermeable material.

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