JPH0426499Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a structure for fixing joint sheets for seawall blocks.

[Prior art] Conventionally, when constructing a reclaimed land in a port, coast, river, lake, etc., a sea wall surrounding the planned land was first installed, and earth and sand, industrial waste, etc. were dumped into the area surrounded by this sea wall. The method used is to dump waste into a landfill.

10 and 1.
As shown in Fig. 1, a foundation 1b is provided on the water bottom 1a where reclamation is to be performed, and a large number of revetment blocks (caissons) 2a, 2b, 2c, . . . are installed in parallel on this foundation 1b. Therefore, vertical joints 3a, 3b, 3c, etc. are formed between the adjacent seawall blocks 2a and 2b, 2b and 2c, etc., and water currents, waves, etc. can enter these joints 3a, 3b, 3c, etc. Sediment on the landfill side A flows out to the sea side B, for example.
This will hinder the reclamation work and the bank protection block 2
a, 2b, 2c, . . . were tilted or collapsed.

Therefore, measures have been taken to cover the joints 3a, 3b, 3c, etc. from the landfill side A with a flexible and waterproof joint sheet 4a made of polyvinyl chloride, etc., to prevent soil from flowing out from the landfill side A. ing.

[Problems to be solved by the invention] However, the seawall blocks 2a, 2b, 2c
The joint sheet 4a is fixed to each joint 3.
Joints 3a, 3b, 3c... between adjacent seawall blocks 2a, 2b, 2c... with a, 3b, 3c... in between.
Both sides 5 of the joint sheet 4a to be laid covering the
This is generally done by driving the rivets 5a etc. into the joint sheets 4a and 5b using explosive gas pressure, and this is satisfactory from the point of view of speeding up the work. Since it is fixed with 6a or the like, the adhesion strength is low, and it has the disadvantage that it is easily peeled off or damaged by water currents, waves, etc. In particular, when constructing oil storage bases, etc., it is necessary to install seawalls directly in offshore water where there are strong water currents, waves, and tidal currents, and such fixing means pose a major obstacle. In addition, the joint sheet 4a has its side portion 5
Since the seawalls a and 5b are directly fixed to the adjacent revetment blocks 2a, 2b or 2b, 2c, if the revetment blocks 2a, 2b, 2c... tilt or settle unevenly and are displaced separately, the joint sheets 4
There was a problem in that the joint sheet 4a was easily peeled off or broken due to the tensile force acting on the joint sheet 4a.

[Purpose of the invention] This project solves these problems and has high fixation strength to the seawall block, prevents the joint sheet from peeling off or being damaged by water currents, waves, tides, etc., and prevents uneven settlement. To provide a structure for fixing a joint sheet for a seawall block in which the joint sheet is not damaged even if the seawall blocks arranged in parallel are displaced in different directions.

[Means for solving the problem] The fixing structure of the joint sheet for seawall blocks according to the present invention is such that the joint sheet is fixed to the seawall blocks at the outer side of both side edges of the joint sheet that is laid to cover the joints of adjacent seawall blocks. A horizontal frame extending in the width direction is fixed to the vertical frame, and the joint sheet is sandwiched and fixed between the seawall block and the horizontal frame.

[Examples] Examples of the present invention will be described below based on the drawings.

FIG. 1 shows an embodiment of the present invention,
1 and 2 are concrete revetment blocks that are placed side by side on the bottom of the reclaimed land and have joints 3 and are adjacent to each other, as in the conventional example, and each of the revetment blocks 1 and 2 located on the reclaimed side Sides 4, 5
Cover the joint 3 with a thickness of about 3 to 15 mm and a width of 50 mm.
~100mm of soft synthetic resin materials such as soft polyvinyl chloride and soft polyethylene, or rubber materials such as natural rubber and synthetic rubber.
At the same time, vertical frames 9 and 10 made of steel plates are installed on the outer side of both side edges 7 and 8 of the seawall blocks 1 and 1.
It is fixed by an anchor bolt 12 embedded in and fixed to 2. Between the vertical frames 9 and 10, there are a plurality of horizontal frames 1 formed of the same material as the vertical frames 9 and 10.
1 are welded and installed diagonally, and the joint sheet 6 is sandwiched and fixed between the side surfaces 4, 5 of the revetment blocks 1, 2 and the horizontal frame 11. Note that it is desirable that the vertical frames 9 and 10 be arranged along both side edges 7 and 8 of the joint sheet 6 to be laid.

In order to fix the joint sheet 6 to the seawall blocks 1 and 2, first, as shown in FIG. are fixed, and then, as shown in Fig. 3, a joint sheet 6 is laid on the sides 4, 5 of both revetment blocks 1, 2, covering the joints 3, from the top surfaces 13, 14 to the bottom (not shown). . At this time, the upper end 15 of the joint sheet 6 is fixed to the upper surfaces 13 and 14 using the anchor bolts 12.
It is preferable to hold it down with a stop plate 16 fixed to. Next, a pair of vertical frames 9 and 10 and multiple horizontal frames 11
The frame body 17 on which is installed is inserted into the anchor bolts 12 fixed to the side surfaces 4 and 5, and the nuts 18 are screwed to connect the frame body 17 to the seawall blocks 1 and 2.
It should be fixed to.

According to the fixing structure of the seawall block joint sheet constructed in this way, the joint sheet 6 laid to cover the joints 3 of the adjacent seawall blocks 1 and 2
are fixed between the sides 4 and 5 of the revetment blocks 1 and 2 and the horizontal frame 11, so even if the revetment blocks are installed offshore with strong waves, water currents, tidal currents, etc., they will not peel off or be damaged. There is no need to worry about this, and since the side edges 7, 8 of the joint sheet 6 are close to the vertical frames 9, 10, there is no possibility of movement in the width direction along the side surfaces 4, 5 of the seawall blocks 1, 2. In addition, the side edges 7 and 8 of the joint sheet 6 are not directly fixed to the seawall blocks 1 and 2, so even if the seawall blocks 1 and 2 are displaced due to uneven settlement, etc., the joint sheet 6 The state in which the joint 3 is covered is maintained without being affected by the displacement. In this embodiment, the revetment blocks 1 and 2 are connected to each other through the frame 17, so that the installation strength of the revetment is increased and displacement of the revetment blocks 1 and 2 is prevented.
Further, in order to facilitate the work of laying the joint sheet 6, stop plates 16 are fixed to the upper surfaces 13 and 14 of the seawall blocks 1 and 2, but this is not necessary and may be removed after fixing. 16, joint sheet 6 and seawall blocks 1 and 2 are used.
This serves to more firmly connect the two parts to each other, thereby stabilizing the installed state of the seawall in the same manner as the frame body 17. In addition, in this embodiment, the frame body 17 has a pair of vertical frames 9 and 10 and a plurality of horizontal frames 11 installed diagonally, but the horizontal frames 11 also stabilize the joint sheet 6 in the vertical direction. This is to fix the joint sheet 6 in a fixed state, and it may be simply a horizontal frame extending in the width direction of the joint sheet 6, or it may also be a structure in which horizontal frames are crossed with each other.

Furthermore, FIG. 4 shows another embodiment of the present invention, and in this embodiment, unlike the embodiment shown in FIG. A horizontal frame 11 having a length approximately half the width of the joint sheet 6 is provided to protrude and extend in the width direction toward the joint sheet 6 side. Furthermore, FIGS. 5 and 6 show the fixing method of this embodiment, which is the same as the embodiment shown in FIGS. 1, 2, and 3, and the explanation thereof will be given below. Omitted. In this embodiment, unlike the embodiment shown in FIG. 1, the vertical frames 9 and 10 are not connected by the horizontal frame 11 but are constructed separately, so each frame body 17 is lightweight and It has the advantage that it can be fixed to the blocks 1 and 2 with less effort.

Furthermore, what is shown in FIG. 7 shows a different embodiment of the present invention, in which the vertical frames 9, 1
0 and the structure of the horizontal frame 11 are almost the same as the embodiment shown in FIG. 4, but the embodiment shown in FIG.
In this embodiment, the eighth
As shown in the figure, sides 4 and 5 of seawall blocks 1 and 2
Steel plates 19, 20 are fixed in advance with bolts 21, etc., and after the revetment blocks 1, 2 are installed on the bottom of the water, the vertical frames 9, 10 are stacked on the steel plates 19, 20, respectively, and both are fixed by welding. It is.

FIG. 9 shows a further different embodiment of the present invention, and this embodiment shows vertical frames 9, 10 fixed to the sides 4, 5 of the seawall blocks 1, 2, and these vertical frames 9, 10. The vertical frames 9, 1 are constructed separately from the horizontal frames 11 installed in the
0 is formed with locking recesses 24 and 25 for locking end portions 22 and 23 of the horizontal frame 11, respectively. Therefore, the revetment blocks 1 and 2 are placed on the bottom of the water (not shown) to which the vertical frames 9 and 10 are fixed in advance.
After laying the joint sheet 6 covering the joint 3, it is only necessary to erect the lightweight horizontal frame 11 by locking its ends 22, 23 in the locking recesses 24, 25 of the vertical frames 9, 10. The fixing work of the joint sheet can be done quickly and easily, and with less effort.

[Effect of the invention] The fixing structure of the joint sheet for revetment blocks of the present invention is such that the joint sheet is laid to cover the joints of adjacent revetment blocks, and the vertical frame fixed to the revetment block is attached to the outside of both side edges of the joint sheet. The horizontal frame extending in the width direction is fixed, and the joint sheet is sandwiched and fixed between the seawall block and the horizontal frame, and it exerts an extremely large fixing force compared to conventional fixing means. Therefore, the joint sheet can withstand strong offshore conditions such as waves, water currents, and currents, so the joint sheet will not peel off or be damaged, and it will prevent the outflow of earth and sand.
Furthermore, there will be no occurrence of any accompanying tilting or collapse of the seawall block. In addition, the joint sheet is not directly fixed to the revetment block, but is fixed between the horizontal frame and the revetment block, so even if the revetment block is displaced due to uneven settlement, etc., the joint sheet will remain intact. It has various effects such as no fear of breakage because no tensile force is directly applied.

[Brief explanation of the drawing]

FIG. 1 is a perspective partial view showing an embodiment of the present invention;
2 and 3 are explanatory diagrams showing the fixing method, FIG. 4 is a perspective partial view showing another embodiment of the present invention, FIGS. 5 and 6 are explanatory diagrams showing the fixing method, and FIG. 7 is a perspective partial view showing still another embodiment of the present invention, FIG. 8 is an explanatory diagram showing a method of fixing the same, FIG. 9 is a perspective partial view showing still another embodiment of the present invention, FIG. FIG. 11 is an explanatory diagram showing a conventional example. 1, 2... Seawall block, 3... Joint, 6...
Joint sheet, 7, 8... side edge, 9, 10... vertical frame, 11... horizontal frame.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A horizontal frame extending in the width direction is fixed to a vertical frame that is fixed to the seawall block on the outer side of both side edges of a joint sheet that is laid to cover the joints of adjacent seawall blocks. A fixing structure for a joint sheet for a seawall block, characterized in that the joint sheet is sandwiched and fixed between the seawall block and the horizontal frame. (2) The fixing structure of a joint sheet for a seawall block according to claim 1, wherein the vertical frame and the horizontal frame are integral, and the horizontal frame has a length approximately half the width of the joint sheet. (3) The fixing structure of a joint sheet for a seawall block according to claim 1 of the utility model registration, wherein the vertical frame is fixed by welding to a steel plate fixed to each seawall block. (4) The fixing structure of a seawall block joint sheet according to claim 1 of the utility model registration claim, in which the vertical frame and the horizontal frame are separate bodies.