JPS602320Y2 - Tunnel water guide groove joint structure - Google Patents

Description

[Detailed description of the invention] The present invention relates to the improvement of the joint structure of a water guide groove, and its gist is that the water guide groove 4 is formed on both sides of the water guide groove 4 formed along the joint 3 of the concrete wall 2 on the inner circumference of the tunnel 1. The back surfaces of a pair of mounting materials 5 are adhered, and both side edges of joint covers 6 covering the water guide grooves 4 are removably fitted into fitting grooves 7 bored on the opposing inner surfaces of the mounting materials 5. A zipper fitting groove 8 is recessed near the fitting groove 7 on the front side of the zipper, a concrete wall screw 9 is driven from the bottom of the groove, and a zipper screw 9 is inserted from above the screw 9.
This relates to a joint structure of a water guide groove of a tunnel in which a zipper 10 is inserted into a fitting groove 8.

Conventionally, a joint 3 of a concrete wall 2 is placed on the inner circumference of a tunnel 1.
A water guide groove 4 is provided along the water guide groove 4, and as shown in FIG.
was forming.

By the way, over a period of time, free lime in the spring water accumulates in the water conduit 12', causing the water conduit 12' to become clogged.In this conventional example, in order to remove this free lime, the caulking material 11' is removed. However, after cleaning the inside, it is necessary to fill the caulking material 11' again.

In addition, the water channel 4 is filled with caulking material 11', and the water channel 12 is filled with caulking material 11'.
When the water passage 12' is formed, the cross-sectional area of the water conduit 12' becomes small, which causes the water conduit 12' to become easily clogged, and the period until the water conduit 12' becomes clogged is short.

Although it is not yet publicly known, there is something like the one shown in Figure 2 that was submitted as an earlier utility model registration application (Utility Model No. 11a, 1982; filed by the same applicant as the present application). be.

In the device related to this prior application, the flexible portion 13' between the fitting groove 7' and the zipper fitting groove 8' can be bent for the purpose of attaching and detaching the joint cover 6'. For this purpose, insert the zipper fitting groove 8' into the fitting groove 7 on the front side of the mounting material 5'.
The mounting member 5' is fixed with screws 9' on the outer side of the mounting member 5' away from the vicinity of the fitting groove 7'.

Therefore, the width of the mounting material 5' is wide, and the mounting material 5' must be fixed with screws 9' at a position offset to the outside of the mounting material 5'. The inner side of the back surface tends to lift up from the concrete wall 2 as shown by the arrow A, and the adhesive 14' peels off from the concrete wall 2, making it difficult to reliably adhere the mounting material 5', and the joint cover 6
' becomes easy to come off.

Further, the caulking material 15' filled from above the screw 9' is exposed to the outside, resulting in a poor appearance.

This invention was devised in view of the points mentioned above, and its purpose is to make it easy to remove and remove the joint cover, to make it easy to clean even if free lime accumulates inside, and to have a structure that does not leave any trace inside. Because the cross-sectional area of the water conduit is large, it takes a longer time for free lime to become clogged, and the period for internal inspections can be extended, and in addition, the mounting material does not lift up from the concrete wall, making it easier to use the mounting material. The tunnel can be firmly and securely bonded to the concrete wall, and even when caulking is filled over the screws, the zipper can hide the caulking, preventing the caulking from being exposed to the outside and creating a tunnel with a good appearance. The purpose is to provide a joint structure for water guide grooves.

The present invention will be explained in detail below with reference to Examples.

On the inner periphery of the tunnel 1, a water guide groove 4 with a rectangular cross section is formed in the circumferential direction along the joint 3 of the concrete wall 2.
A drain groove 16 communicating with the water guide groove 4 is provided on both sides of the inner bottom of the tunnel 1.

The mounting member 5 is made of an elastic material such as chloroprene rubber and has a long shape, and a fitting groove 7 having a T-shaped cross section is bored in one side of the mounting member 5 in the longitudinal direction. A zipper fitting groove 8 is bored in the longitudinal direction near the fitting groove 7 on the front side of the mounting material 5, and a zipper fitting groove 8 is formed at a constant length along the zipper fitting groove 8 at the bottom of the zipper fitting groove 8. Recesses 17 are partially formed at pitches, and screw insertion holes 18 are bored in the recesses 17.

The joint cover 6 is made of ethylene-vinyl acetate copolymer (EV
A) has an arc-shaped protruding part 1°9 with the central part protruding toward the front side, and fitting parts 2 with a T-shaped cross section at both ends.
0 is provided over the longitudinal direction.

The joint cover 6 is attached to the water guide groove 4 in the following manner.

First, anchor plugs 2; 1 made of nylon or the like are inserted into the concrete walls on both sides of the water guide channel 4 at the same pitch as the recesses 17, and the anchor plugs 21 are filled with adhesive, and the back side is filled with epoxy. When a pair of mounting materials 5 coated with adhesive 14 are adhered to the concrete wall 2 along both sides of the water guide groove 4 so that the fitting grooves 7 are facing each other, the stainless steel bow and the bow are inserted through the screw insertion holes 18. A screw 9 made of stainless steel or the like is inserted through a washer 22 such as the like, screwed into the anchor plug 21, and a caulking material 15 such as silicone is filled into the recess 17 from above the screw 9.

23 is a caulking material for sealing between the mounting material 5 and the concrete wall 2.

Here, the back surface of the mounting material 5 is formed with large and small irregularities 24 to widen the bonding area of the mounting material 5, and the mounting material 5 has poor adhesion with the adhesive 14 compared to a concrete wall 2. This improves the adhesion with the adhesive 14 of 5 and increases the adhesive strength of the mounting material 5.

In addition, elastic tongues 25 are protruded from both sides of the back of the mounting member 5 to form an adhesive reservoir recess 26 between the elastic tongues 25, and the adhesive reservoir recess 26 absorbs the unevenness of the concrete wall 2. The adhesive 14 is firmly held in the adhesive reservoir recess 26, and the adhesive 14 is prevented from protruding outside the elastic tongue piece 25, and furthermore, the elastic tongue piece 25 is pressed against the concrete wall 21 due to its cushioning properties. This also improves the adhesion between the mounting material 5 and the concrete wall 2.

Next, the fitting parts 20 at both ends of the joint cover 6 are fitted into the fitting grooves 7 of the mounting material 5, and the zipper 10 made of chloroprene rubber or the like is fitted into the zipper fitting groove 8. The fitting portions 20 at both ends of the joint cover 6 are inserted into the fitting groove 7 so that the flexible portion 13 between the zipper fitting groove 7 and the zipper fitting groove 8 is not easily deformed.
, and seal the water guide groove 4 and connect the joint cover 6 and the water guide groove 4.
A water conduit 12 is provided between the two.

Here, the guide part 27 on the back side of the fitting groove 7 is longer than the flexible part 13 and protrudes inwardly, and when the fitting part 20 is inserted, the guide part 27 guides the fitting part 20 to be inserted and fitted. It is easy to put on.

Further, the zipper 10 has fitting protrusions 28 on both side edges thereof elastically fitted into fitting grooves 29 on both sides of the zipper fitting groove 8, so that the zipper 10 is removably attached and the caulking material 15 is hidden.

In addition, if free lime accumulates in the conduit 12 covered by the joint cover 6 and the conduit 12 becomes clogged, remove the zipper 10 and remove the flexible part 12 between the fitting groove 7 and the zipper fitting groove 8.
The fitting part 20 is removed from the fitting groove 7 by bending, and the joint cover 6 is removed.

After cleaning the inside of the water conduit 12, the fitting part 20 of the joint cover 6 is fitted into the fitting groove 7, the zipper 10 is fitted into the zipper fitting groove 8, and the joint cover 6 is attached.

Reference numeral 30 denotes anchor bolts buried in the concrete wall 2 at appropriate intervals on both sides of the mounting material 5. Both ends of a belt-shaped saddle 31 are inserted through the anchor bolts 30, and the saddle 31 is fixed with a cap nut 32. There is a bridge in front of the joint cover 6 so as to be perpendicular to the cover 6, so that if the joint cover 6 were to come off the mounting material 5, the joint cover 6 would be curved in an arc along the water guide groove 4. Therefore, there is a risk that the joint cover 6 may jump out into the tunnel 1 and cause an accident, but since the joint cover 6 is prevented from falling off by the saddle 31, even if it comes off from the mounting material 5, it will not jump out into the tunnel 1. It will not cause an accident.

As described above, the present invention involves bonding the backs of a pair of mounting materials on both sides of a water guide groove formed along the joints of concrete walls on the inner periphery of the tunnel, and attaching both side edges of the joint cover covering the water guide groove to the opposite sides of the mounting members. They are removably fitted into fitting grooves drilled on the inner surface, a zipper fitting groove is recessed near the fitting groove on the front side of the mounting material, and the zipper is fitted into the zipper fitting groove. The joint cover can be easily attached and removed by removing the zipper from the zipper fitting groove and bending the flexible part between the zipper fitting groove and the fitting groove to widen the fitting groove. Even if free lime accumulates, it can be easily cleaned, and since the joint cover covers the front of the water channel without being inserted into the water channel, the cross-sectional area inside the water channel is large, so it takes a long time for free lime to become clogged. This allows for longer internal inspection cycles, and since the screws are driven into the concrete wall from the bottom of the zipper insertion groove, and the zipper is inserted into the zipper insertion groove from above the screws, the mounting material is not required. The fixing screws can also be brought close to the fitting groove, making the mounting material narrower, and the screws can be moved closer to the fitting groove on the inside of the mounting material. The inner part of the mounting material with the fitting groove will not be lifted up from the concrete wall and the adhesive will not peel off, allowing the mounting material to be completely crimped onto the concrete wall and securely fixed, and construction is easy. Moreover, since the inner part of the mounting material with the fitting groove does not lift up, there is no possibility that the joint cover will come off easily due to lifting.Furthermore, the head of the screw can be attached to the zipper fitting groove by the zipper. Since water is confined inside the screw, water will not enter from around the screw and cause the adhesive that adheres the mounting material to the concrete wall to peel off, and the caulking material is filled over the screw in the zipper insertion groove. Even when the zipper is used, the caulking material is hidden from the zipper and cannot be seen from the outside, giving it a pleasing appearance.

[Brief explanation of drawings]

FIG. 1 is a side sectional view of a conventional example, FIG. 2 is a sectional view of a device related to an earlier application, FIG. 3 is a front sectional view showing an embodiment of the present invention, and FIG. A' cross-sectional view (however, the cross-sections of the right half and left half are different in a step-like manner.

Claims (1)

[Scope of utility model registration request] The backs of a pair of mounting materials were glued to both sides of the water guide groove formed along the joints of the concrete walls on the inner circumference of the tunnel, and both side edges of joint covers covering the water guide groove were drilled on the opposing inner surfaces of the mounting materials. They are removably fitted into the respective fitting grooves, a zipper fitting groove is recessed near the fitting groove on the front side of the mounting material, a screw is driven into the concrete wall from the bottom, and the zipper is inserted from above the screw. The joint structure of the tunnel's water guide groove consists of a zipper inserted into the groove.