JP2000073581A - Water-stopping performance confirming method for joint sealing member and joint sealing part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water-stopping performance confirming method for clearly confirming a water leaking state from a joint sealing member during the execution of the joint sealing work, and a joint sealing member suitable for the confirming method. SOLUTION: In this water-stopping performance confirming method, the presence of leakage is confirmed by fitting a test apparatus 3 to the fixing member 2 of a joint sealing member 1 for supplying the leakage confirmation sample pressurized by the test apparatus 3 to the locking part of the joint sealing member 1. In this joint sealing member 1, juxtaposed projections with a plurality of divided sections are provided to locking parts situated on both sides of the joint sealing member 1, and further the test apparatus 3 is made up of an external pipe covering the fixing member 2 for receiving and closing the supply of the leakage confirmation sample, and an intermediate pipe equipped inside the external pipe and screwed with anchor bolts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for checking the water stopping performance of a joint water stopping member and a joint water stopping member, and more particularly, to a joint water stopping member capable of clearly observing a water leakage state from the joint water stopping member. The present invention relates to a method for checking the water stopping performance of a member and a joint water stopping member suitable for the checking method.

[0002]

2. Description of the Related Art Concrete structures forming reservoirs, water purifiers, water supply and sewerage channels, and the like for storing domestic water, industrial water, and the like cannot avoid cracking of concrete because of their large size. Therefore, it is common practice to provide joints in a concrete structure to prevent further cracks in the concrete. Various proposals have been made for the joint structure of concrete structures, but the joints are originally connected to cracks in the skeleton, so if the joints deteriorate, water leaks from that part,
There is a problem that a so-called water loss phenomenon occurs. In addition, it is necessary for the concrete structure to follow displacement due to unequal settlement of the structure, earthquake, etc. in addition to its own crack problem,
If the follow-up exceeds the limit point, the joints will be damaged, and the joints are provided with joint stoppage members that have slack in the width direction of the joints to prevent water loss. General. Furthermore, if the concrete structure deteriorates due to aging, the joints will be damaged at the same time as the cracks in the frame body, etc. It has been done.

As shown in FIG. 9, a conventional countermeasure against water loss is to close the joint with a groove-shaped slack portion 51 located at the center with respect to the joint 50, and to lock the locking portions 52 on both sides with a fixing tool 53. The joint waterproofing member 54 fixed to the above is applied. The joint waterproofing member 54 was made of butyl rubber, and the locking portions on both sides thereof were a flat plate or a flat plate having two rows of parallel projections 55 to be joined to the frame. The joint waterproofing member 54 is fixed to the skeleton by using the fixing tool 53 composed of an anchor bolt planted in the skeleton at regular intervals along the joint and a nut engaged with the anchor bolt. In the state where each projection is crushed by tightening the nut, the joint water stopping member is pressed against the surface of the skeleton to prevent water leakage from the joint.

However, in such a means, although the continuous parallel state of the projections is apparently accurately joined to the surface of the skeleton, the locking portion 52 of the joint waterproofing member is fixed by the fixing tool 53 to the surface of the skeleton. When the nut is not uniformly tightened to the projection 55,
Is transformed, the state of pressure bonding to the surface of the skeleton may become unstable. In particular, no test method has been established to check the water-stopping state during the construction of the water-stopping work for the joints, and the construction has been completed without checking the water-stopping performance in the above-mentioned state. In some cases, there were concerns about quality control after the construction, which was a concern.

[0005]

DISCLOSURE OF THE INVENTION The present invention relates to a method for confirming a water stopping performance capable of clearly confirming a state of water leakage from a joint water stopping member during construction of a joint stopping work, and a joint suitable for the checking method. It is to provide a water stopping member.

[0006]

SUMMARY OF THE INVENTION A method for confirming the water stopping performance of a joint water stopping member according to the present invention basically comprises closing a joint with a groove-shaped slack portion at the center and fixing a locking portion on both sides. Confirmation of leakage to the fixing device of the joint water stopping member fixed to the skeleton by connecting to the sample supply unit and covering it with the fixing device and closing it with the outer tube and the fixing device equipped with a gap inside the outer tube By mounting and placing a test device composed of a tool and a middle tube to be connected, by supplying a leak confirmation sample pressed from the test device along the fixing device to the locking portion of the joint water stopping member, This is for confirming the presence or absence of leakage, and is characterized in that the test device is mounted directly on the anchor bolt of the fixing device or with the nut removed. Further, it is also characterized in that injection is performed by means similar to the above through a pressing plate constituting a fixing device.

In the joint water stopping member according to the present invention, in the joint water stopping member, parallel projections which are divided into a plurality of sections are formed at locking portions on both sides of the joint water stopping member. It is characterized by. The method for checking the water stopping performance of the present invention with respect to the joint water stopping member employs the constituent features of the invention described above.

The test apparatus used in each of the above-mentioned methods for checking the water stopping performance is connected to a leak checking sample supply section to receive the leak checking sample, and covers the fixing tool of the joint water stopping member to close the fixing tool. And a middle tube provided with a screw hole to be screwed with an anchor bolt of a fixing tool provided by a coupling member so as to form a gap inside the outer tube.

[0009]

FIG. 1 is a schematic diagram for explaining a method for confirming the water stopping performance of a joint water stopping member according to the present invention. As shown in the figure, the joint waterproofing member 1 according to the present embodiment has a slack central portion and is projected downward corresponding to the groove formed at the upper end of the joint. The locking portions 5 on both sides have bolt holes for inserting anchor bolts and the like in order to fix the joint waterproofing member to the skeleton, and have good jointability with the skeleton on both sides of the bolt holes. For this purpose, parallel projection rows 8 are formed. Therefore, the method for checking the water stopping performance according to the present invention starts by first selecting the fixing device 2 in the area where the performance is to be checked and mounting the test device 3 so as to close the fixing device 2. Next, the test apparatus 3 receives the supply of the leak-confirmed sample to which pressure has been applied from a pipe connected to a leak-confirmed sample storage unit (not shown), and seals the joint along the fixing device 2 with the joint water stopping member. 1 into the locking portion 5. The leak confirmation sample is filled between the parallel projection rows 8 on both sides of the bolt hole through the bolt hole through which the anchor bolt is inserted from the fixing tool 2, and if there is a part where the water stoppage is not complete, from there, It will squirt outside. The method for checking the water stopping performance according to the present invention can be carried out by a simple operation of visually checking the leakage from the joint water stopping member 1 to the outside as described above, so that there is no individual difference and no checking omission occurs. It is possible to confirm the water stopping performance of the joint water stopping member.

In order to check the water stopping performance, it is necessary to check the presence or absence of leakage for each fixed section. In the present embodiment, the joint water stopping member 1 is divided into sections of a predetermined length. It is necessary to attach an adhesive 4 such as butyl rubber between the two projection rows 8 in advance. Although various kinds of leak confirmation samples can be adopted, water or a colored gas is preferable from the viewpoint of handling in consideration of measures against water leakage from joints. However, it is not limited in a strict sense. Confirmation of the water stopping performance of the joint water stopping member can be performed by repeatedly performing the above operation for each predetermined section, so that the water stopping state of the entire joint water stopping member can be checked. When the performance confirmation method is used, it is possible to perform the water stoppage treatment and the confirmation thereof in detail, so that the quality assurance after the construction can be ensured.

FIG. 2 is a cross-sectional view showing a state in which the test device is mounted on the fixing device of the joint water stopping member. Bolt holes 7 through which the fixing tool 2 for pressing and fixing the joint water stopping member 1 to the frame 6 are inserted into the locking portions 5 on both sides of the joint water stopping member 1.
Are formed in the center, and parallel projection rows 8 are formed on both sides of the bolt holes 7 to improve the jointability with the frame 6. An anchor bolt 9 of the fixing device 2 is implanted in the frame 6. The fixing device 2 further includes a pressing plate 10 on the surface of the locking portion 5.
Has been arranged. The pressing plate 10 is, as apparent from the figure,
The width thereof is configured to be located slightly outside of the projection row 8, whereby the pressing force of the anchor bolt 9 and the nut 12 inserted into the bolt hole 11 brings the projection row 8 closer to each other without pushing them out. It is made to work in the direction.

The pressing plate 10 is composed of a packing 13 made of butyl rubber or the like, a metal washer 14 and a nut 12 laminated thereon, and an anchor bolt 9 planted in the frame 6 to form a row of projections of the joint water stopping member 1. 8 is brought into close contact with the body surface with an even force. The test apparatus 3 is attached to the fixing device 2 by screwing a middle tube 16 disposed inside the outer tube 15 with an anchor bolt 9. The outer tube 15 is configured to receive supply of water or the like as a leak confirmation sample from a pipe 17 connected to a sample storage unit (not shown). The packing 19 such as an O-ring mounted on the flange 18 at the lower end of the outer tube 15 is provided with a pair of projections along the fixing tool 2 without leaking from the outer tube when the outer tube is supplied with water or the like. Space 20 between 8
This is to supply the liquid continuously.

As is clear from the above configuration, the space 20 between the two rows of projections 8 communicates with the test apparatus 3 via the bolt holes 7 of the joint waterproofing member 1 and the bolt holes 11 of the pressing plate 10. . Therefore, when there is a problem in the water stopping performance of the protrusion close to the space 20 formed by the protrusion row 8, that is, the joint water stopping member 1, the test device 3 injects water or the like while applying pressure to the water. The water supplied via the fixing device 2 leaks from the edge of the joint water stopping member 1, so that a defective portion of the water stopping performance can be easily confirmed.

FIG. 3 shows the outer tube 15 and the middle tube 1 of the test apparatus 3.
FIG. Outer tube 15 constituting test apparatus 3
Has a cylindrical shape, the upper end of which is closed, on which a hole 21 is formed on the inside and a coupling portion 23 having a screw 22 on the outside is formed. The lower end is formed with a flange 18 having a groove 24 for packing. The connection part 23 is screwed to a connection nut provided on the connection pipe 17 from the leak confirmation sample supply part to receive supply of water or the like.
The middle tube 16 has a shape similar to that of the outer tube, is arranged inside the outer tube, and is supported by coupling members 25 from four sides. The middle tube 16 is provided with a tap 26 for screwing with the anchor bolt 9 for attaching the test device 3 to the fixing device. One embodiment has been described above with respect to the outer tube and the middle tube constituting the test device. However, the test device in the present invention is not limited to this. Is to supply the sample for confirming the leakage of water or the like along the fixing device to the locking portion of the joint water stopping member, and to connect the fixing device to the fixing device for the above-mentioned blockage with the middle pipe. Any configuration that can achieve this can be adopted as the embodiment.

FIG. 4 is a cross-sectional view showing another embodiment in which a test device is mounted on a fixing device of a joint water stopping member. In the present embodiment, the packing 13, the metal washer 14 and the nut 12 are temporarily removed from the anchor bolt 9 as shown in the figure, and the middle pipe 16 is screwed into the anchor bolt 9 having a sufficient thread portion. Thus, the test apparatus 3 is mounted on the fixing device 2. According to this, in the above-described example, water flows between the packing 13, the metal washer 14 and the nut 12 or through the joint surface between the packing 13 and the pressing plate 10, the bolt hole 11 of the pressing plate, and the bolt of the locking portion. The outer tube 1 of the test device 3 is compared with the transfer to the hole 7.
5 is directly transferred to the bolt hole 11 of the pressing plate and the bolt hole 7 of the locking portion, so that the water flows into the space 20 between the two projection rows 8 formed in the locking portion 5. The street is very smooth. Therefore, according to the present embodiment, it is possible to express the water leakage in the water-stop portion of the joint water-stopping member positively, and to perform the water-stopping performance confirmation test of the joint water-stopping member simply and reliably. it can.

FIGS. 5 to 7 show another embodiment in which the fixing device is improved. As shown in the plan view of FIG. 5, the fixing device 30 for fixing the joint water stopping member 1 to the skeleton has the same configuration as that of the fixing device 2 described above except that the pressing plate 31 is different. The pressing plate 31 is provided with a hole 32 communicating with the bolt hole 11 near the bolt hole. The hole 32 is
Since the function of the hole 32 is to transfer water and the like supplied to the outer tube of the test apparatus to the bolt hole 11 without passing through packing, a metal washer, and a nut configured as a fixing device, the position is fixed. Packing 13 and outer tube 15 of tool 2
The space between the packing 19 and the packing 19 is appropriate. Although the structure of the hole 32 is circular on the surface of the pressing plate as shown in FIG. 6, the shape of the side in contact with the locking portion 5 is formed by the groove 33 connected to the bolt hole 11 for ease of processing. Is formed as However, the shape of the hole 32 is not limited to this, and can be arbitrarily selected as long as it can communicate with the bolt hole 11 from the surface of the pressing plate.

FIG. 7 is a sectional view showing a state where the test apparatus is mounted on the fixing device. The pressing plate 31 of the fixing device 30 to which the test device 3 is mounted has a hole 32 connected to the bolt hole 11 between the pressing plate 31 and the locking portion 5 as is apparent from the drawing. The pressing plate 31 is composed of a butyl rubber packing 13, a metal washer 14, a nut 12, and an anchor bolt 9 planted on the skeleton 6. This is similar to the embodiment described with reference to FIG. In the test device 3, the anchor bolt 9 protruding above the nut 12 of the fixing device 30 is screwed to the middle tube 16 and mounted on the fixing device 2. The outer tube 15 of the test device 3 includes the bolt hole 7 of the joint water stopping member 1, the bolt hole 11 of the pressing plate 10, and the hole 32.
Through the space 20 between the two projection rows 8. Therefore, when pressure water or the like is injected from the test apparatus 3, the water supplied via the fixing device 30 leaks from the edge of the joint water stopping member 1, so that the water stopping performance can be easily confirmed. Similarly, in the present embodiment, it is possible to omit the operation of removing the fixing device nut and the like from the anchor bolt in advance and retightening the fixing device again after the test is completed. This is effective in that the joint water-stopping member at the portion where the test is performed can eliminate anxiety that the water-stopping performance may be lost when the fixing device is refastened.

FIG. 8 shows a joint water stopping member suitable for the method for checking water stopping performance according to the present invention. Joint waterproofing member 4
0, as shown in the figure, the central portion 41 sags and is projected downward corresponding to the groove formed at the upper end of the joint, and the locking portions 42 on both sides of the joint water stopping member 40 are The frame has bolt holes 43 through which anchor bolts for fixing the joint waterproofing member 40 are inserted. On both sides of the bolt holes 43, parallel projection rows 44 for improving the connection with the frame are provided.
Is configured. A space 46 is formed between the parallel rows of projections 44 by partitions 45 arranged at predetermined intervals, and the bolt hole 43 is provided substantially at the center of the space 46.

The joint waterproofing member 40 is configured as described above, and when applied to a joint of a skeleton, the following advantages can be exhibited. On the construction surface, even when tightening with the fixing tool when fixing the joint water stopping member to the frame, by connecting the parallel projection rows to each other, prevent the projection rows from being pushed out. It is possible to increase the uniform pressing of the pressing plate including the partition, and also for the water stoppage, the partitioning of the projection row enables the establishment of a water stop area around each fixing tool. Will be possible. Further, in terms of checking the water stopping performance, it is possible to carry out the test without any auxiliary work on the joint water stopping member, because the performance checking part is clearly defined based on the fixing tool.

The test apparatus used in each of the methods for confirming the water stopping performance according to the present invention has been described above, and therefore, a further description with reference to the drawings will be omitted. The test apparatus 3 closes the fixing tool 2 by placing the outer tube 15 on the fixing tool of the joint waterproofing member and screwing it with the anchor bolt of the fixing tool. The structure may be such that the pressed leak check sample is supplied and injected into the joint waterproofing member. Since the state of checking the water stopping performance is merely visually recognizing the state of leakage from the joint water stopping member, the production of the device can be inexpensive, and the handling and operation thereof are extremely simple and reliable.

[0021]

The method for confirming the water stopping performance of the joint water stopping member according to the present invention is basically a method in which a test device is mounted on a fixing device of the joint water stopping member, and the leak pressed from the testing device is checked. It is characterized by checking the presence or absence of leakage by supplying the sample to the joint of the joint water stopping member, so that the test equipment is easy to handle and the water stopping performance is also confirmed. This has the effect that it is possible to carry out a reliable check without any individual differences, since the leak from the user is only checked visually.

Further, the joint waterproofing member according to the present invention is characterized in that the projections divided into a plurality of sections are formed on the engaging portions on both sides of the joint waterproofing member. In order to prevent the projection row from being pushed out, it is also possible to establish a water blocking area by partitioning the projection row in terms of the water stoppage, and the performance confirmation part is also clear from the aspect of checking the water stoppage performance. This has the effect that the test can be carried out without any additional work.

Further, the test apparatus according to the present invention comprises an outer tube which is supplied with a leak confirmation sample and is closed by covering the fixing device, and a middle tube which is provided inside the outer tube and which is screwed with an anchor bolt. Therefore, there is an effect that the production can be performed at a low cost, and the handling and operation can be made extremely simple and reliable.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an outline of a method for checking the water stopping performance of a joint water stopping member according to the present invention.

FIG. 2 is a view showing how a test apparatus is mounted on a fixing device.

FIG. 3 is a cross-sectional view and a plan view showing an outer tube and a middle tube constituting the test apparatus.

FIG. 4 is a mounting diagram of a test apparatus in which a nut and the like of a fixing device are removed.

FIG. 5 is a plan view of a fixing device employing a pressing plate according to the present invention.

FIG. 6 is a plan view and a cross-sectional view of a pressing plate included in the fixing device.

FIG. 7 is a view showing how a test apparatus is mounted on a fixing device according to the present invention.

FIG. 8 is a plan view and a sectional view of a joint water stopping member according to the present invention.

FIG. 9 is a perspective view showing an outline of a conventional joint water stopping member.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Joint water stopping member 30 Fixing tool 2 Fixing tool 31 Pressing plate 3 Test device 32 Hole communicating with bolt hole 4 Adhesive substance 33 Groove 5 Locking part 40 Joint joint water stopping member 6 Body 41 Central part 7 Bolt hole 42 Stop 8 Projection array 43 Bolt hole 9 Anchor bolt 44 Projection array 10 Press plate 45 Partition 11 Bolt hole 46 Space 12 Nut 50 Joint 13 Packing 51 Groovy slack 14 Metal washer 52 Locking part 15 Outer tube 53 Fixing tool Reference Signs List 16 Middle pipe 54 Joint water stopping member 17 Pipe 55 Projection 18 Flange 19 Packing 20 Space between projection rows 21 Hole 22 Screw 23 Joining part 24 Groove 25 Joining material 26 Tap

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Eiji Takada, Inventor 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation Inside (72) Inventor Yoshizo Kanagi 1-2-3, Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Hisao Abe 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Yoshio Nishino 1058 Nakao Uozumi-cho, Akashi City, Hyogo Prefecture Shibata Industry Co., Ltd. 72) Inventor Katsumasa Tokubuchi 1058 Nakao, Uozumi-cho, Akashi-shi, Hyogo Prefecture Inside Shibata Kogyo Co., Ltd. FA03 GA14 HE01 KA01 LA01 LA11 PA01 2E176 AA01 BB38 2G067 AA19 BB02 BB11 BB31 CC02

Claims (14)

[Claims] 1. A method for confirming the water stopping performance of a joint water stopping member, wherein a joint part is closed by a groove-shaped sag part at the center and locking parts on both sides are fixed to a skeleton by a fixing tool. An outer tube connected to the leak confirmation sample supply unit to cover and close the fixing device, and an inner tube connected to the fixing device provided with a gap inside the outer tube, to the fixing device of the water stopping member. By mounting a test device composed of: and supplying a leakage confirmation sample pressed from the test device to the locking portion of the joint water stopping member along the fixing tool, the joint water stopping member For checking the water stopping performance of the joint water stopping member to check for leakage from the joint. 2. The fixing device according to claim 1, wherein the fixing device comprises an anchor bolt and a nut implanted in the frame, and a test device is mounted on the anchor bolt at a predetermined position to inject a leak confirmation sample. For checking the water stopping performance of the joint water stopping member. 3. A fixing tool nut at a predetermined position is removed.
The method according to claim 2, wherein the test device is mounted on an anchor bolt and a leakage confirmation sample is injected. 4. An anchor bolt and a nut in which a fixing device is implanted in a frame, and a pressing plate of a joint water stopping member. A test device is mounted on the anchor bolt at a predetermined position, and a leak confirmation sample is inserted through the pressing plate. The method for confirming the water stopping performance of a joint water stopping member according to claim 1, wherein water is injected. 5. The fixing tool nut at a predetermined position is removed,
The method for confirming the water stopping performance of a joint water stopping member according to claim 4, wherein the test device is mounted on an anchor bolt to inject a leakage confirmation sample. 6. The method according to claim 4, wherein a hole communicating with the anchor bolt is provided in the pressing plate. 7. A joint water-stopping member in which a joint is closed by a groove-shaped slack portion at the center and engaging portions on both sides are fixed to a skeleton by a fixing device, the engaging portion is divided into a plurality of sections. A joint water stopping member characterized by forming parallel projections joined to a skeleton. 8. An outer tube which is connected to a leak confirmation sample supply unit, covers the fixing device and closes the fixing device, and a fixing device provided with a gap inside the outer tube. A test device consisting of a tool and a middle tube to be connected is mounted and placed,
By supplying the leak check sample pressed from the test device along the fixing device to a parallel-shaped projection having a divided section formed at the locking portion of the joint waterproofing member, the joint stopper is provided. The method for checking the water stopping performance of a joint water stopping member applied to the joint water stopping member according to claim 7, wherein leakage from the water member is checked. 9. The fixing device comprises an anchor bolt and a nut implanted in a frame, and a test device is mounted on the anchor bolt to inject a leak confirmation sample.
The method for checking the water stopping performance of the joint water stopping member according to the above. 10. The water stopping performance of the joint water stopping member according to claim 9, wherein a nut of the fixing device is removed, the test device is mounted on an anchor bolt, and a leak check sample is injected. Method. 11. A fixing device comprising an anchor bolt and a nut planted in a skeleton and a pressing plate of a joint water stopping member, a test device is mounted on the anchor bolt, and a leak confirmation sample is injected through the pressing plate. The method for confirming the water stopping performance of a joint water stopping member according to claim 8, characterized in that: 12. The water stopping performance of the joint water stopping member according to claim 11, wherein a nut of the fixing device is removed, the test device is mounted on an anchor bolt, and a leak check sample is injected. Method. 13. The method according to claim 11, wherein the pressing plate is provided with a hole communicating with the anchor bolt. 14. An outer pipe connected to a leak check sample supply unit to receive the leak check sample, cover the fixing tool of the joint water stopping member, and close the fixing tool, and a gap inside the outer pipe. 14. The method for confirming the water stopping performance according to claim 2, further comprising a middle pipe provided with a screw hole to be screwed with an anchor bolt of the fixing device provided by a coupling member so as to form the fixing member. Test equipment used for