JP2003247397A - Joint - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate joining of two segments adjacent to each other in a peripheral direction. <P>SOLUTION: A joint 1 for joining two adjacent segments 15, 15 together comprises a male type joint member 2 which is provided on a longitudinal joint surface 17 and a female type joint member 7 which is provided on the other joint surface 19 and is fit to the male type joint member 2. The male type joint member 2 includes a fitting member 3 which has plural grooves 6 formed on the surfaces thereof, and the female type joint member 7 includes a pair of fitted members 8, 8 which has plural grooves 12 on the surfaces thereof to be engaged with the grooves 6 of the fitting member 3. By fitting the fitting member 3 between the pair of fitted members 8, 8 so as to engage the grooves 12 of the pair of fitted members 8, 8 with the grooves 6 of the fitting member 3, the two adjacent segments 15, 15 may be joined together. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint, and more particularly, to jointly joining two adjacent members, for example, a plurality of adjacent members provided on the inner surface of an excavated portion of a subway tunnel or the like. It concerns an effective joint.

[0002]

2. Description of the Related Art Generally, when constructing a subway tunnel or the like by a shield method or the like, a segment such as a steel type segment, a filled concrete type segment, or a concrete type segment is provided on the inner surface of the excavated portion,
It covers and supports the excavated part.

An example of this type of segment is shown in FIG. The segment 31 is a solid concrete type segment, which is a circular arc-shaped concrete segment main body 32, and a rectangular plate-shaped metal longitudinal joining plate integrally provided on both longitudinal end faces of the segment main body 32. 33, and a width direction joining plate 34 made of an arc-shaped metal and integrally provided on both end faces in the width direction of the segment main body 32.

In this case, holes 33a, 3 for screw insertion are formed in the longitudinal joint plates 33 and the width joint plates 34, respectively.
4a is provided in a penetrating state, and a hole 33 for inserting each screw is provided.
Portions of the segment main body 32 corresponding to a and 34a are provided with holes 35 for tightening screws of a predetermined size and depth, respectively.

Then, the segment 3 having the above-mentioned structure
1 is continuously provided on the inner surface of the excavated portion such as a tunnel in the circumferential direction, and the holes 35 for screwing each of the segments 31 adjacent to each other in the circumferential direction are used to make holes for screw insertion of the longitudinal joining plate 33. A joint bolt (not shown) is inserted between 33a, 33a, and a nut (not shown) of the joint is screwed into the threaded portion of the bolt for tightening to integrally join the segments 31, 31 adjacent to each other in the circumferential direction. To form a ring-shaped segment ring body on the same circumference.

Then, such segment ring bodies are continuously provided in the excavation direction, the segments 31, 31 of the segment ring bodies adjacent in the excavation direction are integrally joined by the same method, and the inner surface of the excavated portion is The whole is covered with a plurality of segments 31, 31 ... In this way, the inner surface of the excavated portion is divided into a plurality of segments 31, 31
It can be supported by.

[0007]

However, in the segment 31 having the above-mentioned structure, the segment main body 32 made of concrete is provided with the holes 35 for tightening the screws at a plurality of positions. Strength will decrease. Therefore, after the plurality of segments 31, 31, ... Are provided on the inner surface of the excavated portion, the screw tightening holes 35 of each segment 31 must be closed by a filler to secure the strength of each segment body 32. However, the work is time-consuming and causes a long construction period.

Further, the segments 31, which are adjacent to each other in the circumferential direction,
It takes a great deal of time to position the segment 31 when the screw insertion holes 33a of the longitudinal joining plate 33 of 31 are aligned with each other.

Further, when the nut is tightened to the bolt inserted between the screw insertion holes 33a, 33a, the work must be performed by using the screw tightening hole 35 which is a narrow space. In addition, adjacent segment 3
In order to prevent the runout of 1 and 31 after joining, a plurality of places between the adjacent segments 31 and 31 must be tightened with bolts and nuts. For this reason, a great deal of labor and time are required for the joining work, which causes a longer construction period.

The present invention has been made in view of the above problems, and is for joining two adjacent members, for example, a plurality of adjacent segments of a plurality of segments provided on the inner surface of an excavated portion such as a tunnel. When used, there is no need to perform a work such as filling a filler to secure the strength of the segments after joining the adjacent segments together, and further, the positioning of the adjacent segments is easy, Furthermore, the work of tightening bolts and nuts to join the adjacent segments is not necessary at all, and the joining of the adjacent segments can be easily performed in a short time, which can significantly shorten the construction period. It is intended to provide.

[0011]

In order to solve the above problems, the present invention employs the following means. That is, the invention according to claim 1 is a joint for integrally joining two adjacent members, and is a male joint provided on the one member and a male joint provided on the other member. And a female joint fitting with each other, wherein the male joint has a fitting member provided on a joint surface of the one member and having a plurality of grooves on the surface thereof. Has a pair of fitted members provided on the joining surface of the other member, and provided on the surface with a plurality of grooves that are mutually engageable with the grooves of the fitting member,
By fitting the fitting member between the pair of fitted members,
It is characterized in that two adjacent members are integrally joined by engaging a pair of grooves on the fitted member side and grooves on the fitting member side with each other. According to the joint according to the present invention,
When the joining surface of one member and the joining surface of the other member are brought into contact with each other and the fitting member of the male joint of one member is fitted between the pair of fitted members of the female joint of the other member , The groove on the surface of the fitting member and the groove on the surface of the fitted member are engaged with each other,
Two adjacent members will be joined together.

The invention according to claim 2 is the joint according to claim 1, wherein the groove of the pair of mated members and the groove of the mating member enhance the joining force between two adjacent members. It is characterized in that it is formed in an oblique groove that faces the direction. According to the joint of the present invention, when the fitting member is fitted between the pair of fitted members, the fitting member is formed by the cooperation of the groove of the pair of fitted members and the groove of the fitting member. The members are pulled toward the pair of fitted members, and the joining force between the two adjacent members is increased.

According to a third aspect of the present invention, in the joint according to the first aspect, the contact surface of the fitting member with the fitted member is a tapered surface for increasing the joining force between two adjacent members. It is characterized in that it is formed. According to the joint of the present invention, when the fitting member is fitted between the pair of fitted members, the tapered surface of the pair of fitted members and the tapered surface of the fitting member cooperate with each other. The members are pulled toward the pair of fitted members, and the joining force between the two adjacent members is increased.

According to a fourth aspect of the present invention, there is provided a joint for integrally joining two adjacent members, which is a male joint provided on the one member and a male joint provided on the other member. A female joint that fits together with a joint, wherein the male joint has a fitting member that is provided on a joint surface of the one member and has a plurality of grooves formed on the surface thereof; The joint has a pair of fitted members that are provided so as to face the joining surface of the other member, and that have a plurality of grooves that are mutually engageable with the grooves of the fitting member on the facing surface, By fitting the fitting member between the pair of fitting members and engaging the fitting member side groove and the fitting member side groove with each other, two adjacent members are integrated. It is characterized by joining to. According to the joint of the present invention, the joint surface of one member and the joint surface of the other member are brought into contact with each other, and the fitting member of the male joint of one member is fitted to the pair of female joints of the other member. When the fitting members are fitted to each other, the groove on the surface of the fitting member and the groove on the opposite surface of the fitted member are engaged with each other, and two adjacent members are integrally joined.

According to a fifth aspect of the present invention, in the joint according to the fourth aspect, the facing surfaces of the pair of fitted members are formed into tapered surfaces and correspond to the tapered surfaces of the fitting members. It is characterized in that the surface is formed as a tapered surface that matches the tapered surface. According to the joint of the present invention, when the fitting member is fitted between the pair of fitted members, the tapered surface of the pair of fitted members and the tapered surface of the fitting member cooperate with each other. The member is pulled toward the fitted member, and the joining force between two adjacent members is increased.

According to a sixth aspect of the present invention, in the joint according to the fourth aspect, the groove of the fitted member and the groove of the fitting member have a direction in which a joining force between two adjacent members is increased. It is characterized in that it is formed in a diagonal groove facing. According to the joint of the present invention, when the fitted member is fitted between the pair of fitted members, the fitting member is fitted by the cooperation of the groove of the fitted member and the groove of the fitting member. It is pulled toward the fitting member, and the joining force between two adjacent members is increased.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention shown in the drawings will be described below. 1 to 11 show a first embodiment of a joint according to the present invention.
Is effectively applied when two adjacent members, for example, adjacent ones of a plurality of segments provided on the inner surface of an excavated portion of a subway tunnel or the like, in particular, are integrally joined to each other in the circumferential direction. It is possible to do, and is provided with the male joint 2 and the female joint 7.

As shown in FIGS. 1 and 4 to 6, the male joint 2 is provided at one joint portion 16 in the longitudinal direction of the segment 15, and the joint surface 1 of one joint portion 16 is provided.
A fitting member 3 is provided at the center of the member 7 so as to stand upright with respect to the joint surface 17.

The fitting member 3 is provided integrally with the rod-shaped anchor portion 4 embedded in the central portion of the joint surface 17 and the tip end portion of the anchor portion 4, and is a plate-like fitting protruding from the joint surface 17. A plurality of grooves 6 having a triangular cross section facing the width direction of the segment 15 are provided on the upper and lower surfaces of the fitting portion 5. Anchor part 4
The shape is not particularly limited, and may be a flat plate shape or the like.

The female joint 7 is, as shown in FIGS.
It is provided in the other joint portion 18 in the longitudinal direction of the segment 15, and is configured by integrally providing a pair of fitted members 8, 8 in a groove 20 provided in the joint surface 19 of the other joint portion 18. It was done. In this case, the groove 20 is configured to open on the joint surface 19 side of the segment 15 and on one end surface side in the width direction.

Each fitted member 8 is rotated by a rod-shaped support shaft 9 provided perpendicularly to the joint surface 19 of the segment 15 and a bearing (not shown) or the like at the tip of the support shaft 9. It is composed of a substantially elliptic fitted portion 11 that is freely provided, and a plurality of grooves 12 having a triangular cross section that match the groove 6 of the fitting portion 5 of the fitting member 3 are formed on the peripheral surface of the fitted portion 11. A book is provided.

The rear end portion of the support shaft 9 is formed in the anchor portion 10. By embedding the anchor portion 10 in the bottom portion of the groove 20, the fitted member 8 is erected integrally in the groove 20. It has become. The anchor portion 10 is not particularly limited in shape, and may be in a flat plate shape or the like.

The pair of mating members 8, 8 are the segments 1
5, the fitted parts 11, 11 are provided in the groove 20 so as to face each other at a predetermined interval, and the fitting part of the fitting member 3 is provided between the fitted parts 11, 11. 5 is fitted.

Then, the male joint 2 constructed as described above
And the segment 15 provided with the female type joint 7 is located on the inner surface of the excavated portion such as a tunnel, and as shown in FIG. The joint surface 17 of the joint portion 16 is brought closer.

Then, as shown in FIG.
9 and 17 are brought into contact with each other, and the movable side segment 15
Slide in the axial direction, and as shown in FIGS.
The fitting portion 5 of the fitting member 3 of the male joint 2 is fitted between the pair of fitted members 8 and 8 of the fitting portion 11 of the female joint 7,
The grooves 12, 12 of the fitted parts 11, 11 and the groove 6 of the fitting part 5 are engaged with each other. In this case, the pair of fitted parts 11,
11 is pressed by the fitting portion 5 to support shaft 9,
By rotating around 9 as a center, the state shown in the left side of FIG. 11 changes to the state shown in FIG.

Then, a plurality of segments 15, 15 ... Are sequentially joined integrally in the circumferential direction by the same method to form an annular segment ring body on the same circumference. Then, such segment ring bodies are continuously provided in the excavation direction, and the entire inner surface of the excavated portion is divided into a plurality of segments 1.
By coating with 5, 15, ..., The inner surface of the excavated portion can be supported by the plurality of segments 15, 15 ,.

In the joint 1 according to this embodiment configured as described above, the segments 1 adjacent to each other in the circumferential direction are provided.
When 5 and 15 are integrally joined, the joining surface 19 of the joining portion 16 of the movable side segment 15 is brought into contact with the joining surface 19 of the joining portion 18 of the fixed side segment 15, and in this state, The segment 15 is moved in the axial direction so that the fitting portion 5 of the fitting member 3 of the male joint 2 and the fitting portions 11, 11 of the pair of fitted members 8, 8 of the female joint 7 are mutually moved. Segments that are adjacent to each other in the circumferential direction need only be fitted.
The joining work of 5 and 15 becomes easy.

Therefore, the segments 1 adjacent to each other in the circumferential direction
Since no complicated work of joining 5 and 15 with each other using bolts and nuts is necessary, the labor required for joining can be greatly reduced, and the construction period can be shortened significantly.

Further, the segments 15 adjacent to each other in the circumferential direction,
Since the work of filling the filling material in order to secure the strength of the segment 15 is not necessary after the 15 parts are joined together, the construction period can be greatly shortened.

Further, the segments 1 adjacent to each other in the circumferential direction
Positioning of the joint surfaces 19 and 17 of 5 and 15 is also facilitated.

FIG. 12 shows a second embodiment of the joint according to the present invention. This joint 1 has a groove 6 on the surface of the fitting portion 5 of the fitting member 3 of the male joint 2. Also, the groove 12 on the peripheral surface of the fitted portion 11 of the fitted member 8 of the female joint 7 is formed as slanted grooves 6 and 12 which are oriented in the direction of increasing the joining force between the two adjacent segments 15 and 15. is there. That is, the grooves 12 of the fitted portion 11 are inclined grooves 12 that are sequentially separated from the joint surface 19 from one end in the width direction of the segment 15 toward the other end.
And the groove 6 of the fitting portion 5 is formed as an oblique groove 6 that faces the same direction as the groove 12 of the fitted portion 11, and other configurations are the same as those of the first embodiment. Is the same as.

Also in the joint 1 shown in this embodiment, as in the case of the first embodiment, when the adjacent segments 15, 15 in the circumferential direction are integrally joined, The joint surface 19 of the joint portion 18 of the fixed side segment 15 is brought into contact with the joint surface 17 of the joint portion 16 of the movable side segment 15, and in this state the movable side segment 1
5 is moved in the axial direction so that the fitting part 5 of the fitting member 3 of the male joint 2 and the fitted parts 11, 11 of the pair of fitted members 8, 8 of the female joint 7 are fitted to each other. Since they only need to be joined together, the work of joining the segments 15, 15 adjacent in the circumferential direction becomes easy.

Therefore, the segments 1 adjacent to each other in the circumferential direction
Since no complicated work of joining 5 and 15 with each other using bolts and nuts is necessary, the labor required for joining can be greatly reduced, and the construction period can be shortened significantly.

Further, the segments 15 adjacent to each other in the circumferential direction,
Since the work of filling the filling material in order to secure the strength of the segment 15 is not necessary after the 15 parts are joined together, the construction period can be greatly shortened.

Further, the segments 1 adjacent to each other in the circumferential direction
Positioning of the joint surfaces 19 and 17 of 5 and 15 is also facilitated.
Further, in this embodiment, the groove 12 of the fitted portion 11 of the fitted member 8 and the groove 6 of the fitting portion 5 of the fitting member 3 are used.
Are formed in the slanted grooves 12 and 6 facing the direction in which the joining force between the two adjacent segments 15 and 15 is increased, the fitting portion 5 of the fitting member 3 is fitted with a pair of fittings during fitting. As a result, the two adjacent segments 15, 15 can be firmly joined to each other by being pulled toward the coupling members 8, 8.

FIGS. 13 to 19 show a third embodiment of the joint according to the present invention, in which the joint 1 is fitted with a pair of fitted members 8, 8 of a female joint 7. Joint part 11, 11
Is formed in a circular shape and a plurality of grooves 12, 12 are provided on the peripheral surface thereof, and the taper in which the upper and lower surfaces of the fitting portion 5 of the fitting member 3 of the male joint 2 are gradually thinned in the fitting direction. Surface 5
It is formed in a and 5b, and the other structure is the same as that shown in the first embodiment.

Also, in the joint 1 shown in this embodiment, as in the case of the first embodiment, when the adjacent segments 15, 15 in the circumferential direction are integrally joined, The joint surface 19 of the joint portion 18 of the fixed side segment 15 is brought into contact with the joint surface 17 of the joint portion 16 of the movable side segment 15, and in this state the movable side segment 1
5 is moved in the axial direction so that the fitting portion 5 of the fitting member 3 of the male joint 2 and the fitted portions 11, 11 of the pair of fitted members 8, 8 of the female joint 6 are fitted to each other. Since they only need to be joined together, the work of joining the segments 15, 15 adjacent in the circumferential direction becomes easy.

Therefore, the segments 1 adjacent to each other in the circumferential direction
Since no complicated work of joining 5 and 15 with each other using bolts and nuts is necessary, the labor required for joining can be greatly reduced, and the construction period can be shortened significantly.

Further, the segments 15 adjacent to each other in the circumferential direction,
Since the work of filling the filling material in order to secure the strength of the segment 15 is not necessary after the 15 parts are joined together, the construction period can be greatly shortened.

Further, the segments 1 adjacent to each other in the circumferential direction
Positioning of the joint surfaces 19 and 17 of 5 and 15 is also facilitated.
Furthermore, in this embodiment, since the upper and lower surfaces of the fitting portion 5 of the fitting member 3 are formed as the tapered surfaces 5a and 5b, the fitting portion 5 of the fitting member 3 is Since the fitted members 8 and 8 are pulled toward each other, the two adjacent segments 15 and 15 can be firmly joined to each other.

20 and 21 show a fourth embodiment of the joint according to the present invention, in which the joint 1 is fitted with a pair of fitted members 8, 8 of a female joint 7. Joint part 11, 1
The grooves 12 and 12 of No. 1 and the groove 6 of the fitting portion 5 of the fitting member 3 of the male joint 2 are formed in the grooves 12 and 6 facing the direction of increasing the joining force between the two adjacent segments 15 and 15. It is a thing. That is, the grooves 12 of the fitted portion 11 are sequentially joined to the joint surface 19 from one end of the segment 15 in the width direction to the other end.
The groove 6 of the fitting portion 5 is formed in the oblique groove 12 away from the groove 12, and the groove 6 of the fitting portion 11 is formed in the oblique groove 6 facing the same direction as that of the groove 12 of the fitting portion 11. Is the same as that shown in FIG.

Also, in the joint shown in this embodiment, as in the case of the first embodiment, when the segments 15 adjacent to each other in the circumferential direction are integrally joined, they are fixed. The joint surface 19 of the joint portion 18 of the side segment 15 is brought into contact with the joint surface 17 of the joint portion 16 of the movable side segment 15.
Is moved in the axial direction so that the fitting portion 5 of the fitting member 3 of the male joint 2 and the fitted portion 1 of the pair of fitted members 8 of the female joint 7 are joined.
Since it is only necessary to fit 1 and 11 to each other, it becomes easy to join the segments 15 and 15 that are adjacent to each other in the circumferential direction.

Therefore, the segments 1 adjacent to each other in the circumferential direction
Since no complicated work of joining 5 and 15 with each other using bolts and nuts is necessary, the labor required for joining can be greatly reduced, and the construction period can be shortened significantly.

The segments 15, which are adjacent to each other in the circumferential direction,
Since the work of filling the filling material in order to secure the strength of the segment 15 is not necessary after the 15 parts are joined together, the construction period can be greatly shortened.

Further, the segments 1 adjacent to each other in the circumferential direction
Positioning of the joint surfaces 19 and 17 of 5 and 15 is also facilitated.
Further, in this embodiment, the groove 12 of the fitted portion 11 of the fitted member 8 and the groove 6 of the fitting portion 5 of the fitting member 3 are used.
Are formed in the slanted grooves 12 and 6 facing the direction in which the joining force between the two adjacent segments 15 and 15 increases, so that the fitting portion 5 of the fitting member 3 is fitted with a pair of fitted parts during fitting. As a result, the two adjacent segments 15, 15 can be firmly joined to each other by being pulled toward the coupling members 8, 8.

22 to 26 show a fifth embodiment of the joint according to the present invention, in which the joint 1 is fitted with a pair of fitted members 8, 8 of a female joint 7. Joint part 11, 11
Is formed into a plate shape, and the opposing surfaces of the fitted portions 11 facing each other are tapered surfaces 11a and 11a in which the distance between the fitted portions 11 and 11 is gradually increased as the distance from the joint surface 19 of the segment 15 is increased. A plurality of grooves 12, 12 are provided in the tapered surfaces 11a, 11a, and the upper and lower surfaces of the fitting portion 5 of the fitting member 3 of the male joint 2 are provided with a pair of fitted members 8, 8
Tapered surface 5 that matches the gap between the fitted parts 11 of the
a, 5b, and a plurality of grooves 6, 6 which are formed on the taper surfaces 5a, 5b and match the grooves 12, 12 of the fitted parts 11, 11.
Is provided, and the other structure is the same as that shown in the first embodiment.

Also in the joint 1 shown in this embodiment, as in the case of the first embodiment, when the adjacent segments 15, 15 in the circumferential direction are integrally joined, The joint surface 19 of the joint portion 18 of the fixed side segment 15 is brought into contact with the joint surface 17 of the joint portion 16 of the movable side segment 15, and in this state the movable side segment 1
5 is moved in the axial direction so that the fitting part 5 of the fitting member 3 of the male joint 2 and the fitted parts 11, 11 of the pair of fitted members 8, 8 of the female joint 7 are fitted to each other. Since they only need to be joined together, the work of joining the segments 15, 15 adjacent in the circumferential direction becomes easy.

Therefore, the segments 1 adjacent to each other in the circumferential direction
Since no complicated work of joining 5 and 15 with each other using bolts and nuts is necessary, the labor required for joining can be greatly reduced, and the construction period can be shortened significantly.

Further, the segments 15 adjacent to each other in the circumferential direction,
Since the work of filling the filling material in order to secure the strength of the segment 15 is not necessary after the 15 parts are joined together, the construction period can be greatly shortened.

Further, the segments 1 adjacent to each other in the circumferential direction
Positioning of the joint surfaces 19 and 17 of 5 and 15 is also facilitated.
Furthermore, in this embodiment, the fitted members 8, 8
The opposite surfaces of the fitted parts 11, 11 are tapered surfaces 11a, 11
a, and the fitting part 4 of the fitting member 3 is fitted into the fitted parts 11, 1
Taper surface 5a, which matches the taper surface 11a of FIG.
Since it is formed in 5b, the fitting portion 4 of the fitting member 3 is pulled toward the fitted members 8 and 8 at the time of fitting, and the two adjacent segments 15 and 15 are firmly joined to each other. Will be able to be joined to.

27 to 29 show a sixth embodiment of the joint according to the present invention, in which the joint 1 comprises a fitted portion 11 of a fitted member 8 of a female joint 7. The groove 12 and the groove 6 of the fitting portion 5 of the fitting member 3 of the male joint 2 are formed in the oblique grooves 12 and 6 which are oriented in the direction of increasing the joining force between the two adjacent segments 15 and 15. That is, the grooves 12 and 12 of the fitted portions 11 and 11 are formed in the slanted grooves 12 and 12 that are gradually separated from the joining surface 19 from one end to the other end in the width direction of the segment 15, 6 is formed in the oblique groove 6 that faces the same direction as the groove 12 of the fitted portion 11, and the other configurations are the same as those shown in the fifth embodiment.

Also, in the joint shown in this embodiment, as in the case of the first embodiment, when the segments 15 adjacent to each other in the circumferential direction are integrally joined, they are fixed. The joint surface 19 of the joint portion 18 of the side segment 15 is brought into contact with the joint surface 17 of the joint portion 16 of the movable side segment 15.
Is moved in the axial direction so that the fitting portion 5 of the fitting member 3 of the male joint 2 and the fitted portion 1 of the pair of fitted members 8 of the female joint 7 are joined.
Since it is only necessary to fit 1 and 11 to each other, it becomes easy to join the segments 15 and 15 that are adjacent to each other in the circumferential direction.

Therefore, the segments 1 adjacent to each other in the circumferential direction
Since no complicated work of joining 5 and 15 with each other using bolts and nuts is necessary, the labor required for joining can be greatly reduced, and the construction period can be shortened significantly.

Further, the segments 15 adjacent to each other in the circumferential direction,
Since the work of filling the filling material in order to secure the strength of the segment 15 is not necessary after the 15 parts are joined together, the construction period can be greatly shortened.

Further, the segments 1 adjacent to each other in the circumferential direction
Positioning of the joint surfaces 19 and 17 of 5 and 15 is also facilitated.
Further, in this embodiment, the groove 12 of the fitted portion 11 of the fitted member 8 and the groove 6 of the fitting portion 5 of the fitting member 3 are used.
Are formed in the slanted grooves 12 and 6 that face the direction in which the joining force between the two adjacent segments 15 and 15 increases, the tapered surface 11a of the fitted portion 11 and the tapered surface 5a of the fitting portion 5, The action of 5b and the action of the slanted grooves 12 and 6 are combined, so that the fitting portion 4 of the fitting member 3 is fitted to the fitted member 1 at the time of fitting.
It will be pulled more strongly in the directions of 1 and 12,
The two adjacent segments 15 and 15 can be joined more firmly.

The joint according to the present invention is not only used for joining between the segments which are adjacent in the circumferential direction of the tunnel as described above (as a joint between segments),
It may be used for joining between segments that are adjacent to each other in the axial direction of the tunnel (as an inter-ring joint). Further, in each of the above-described embodiments, the case where the joint according to the present invention is applied to the joining of the concrete type segment has been described, but it may be applied to the joining of the steel type segment and the filled concrete type segment. Of course, in that case, the same effects as those described above can be obtained.

[0057]

As described above, according to the invention described in claim 1 of the present invention, the joining surface of one member and the joining surface of the other member are brought into contact with each other to join one member. The pair of fitting members of the male joint on the surface and the fitted member of the female joint on the joining surface of the other member are fitted to each other to form the groove of the pair of fitted members and the fitting member. By engaging the groove with each other, two adjacent members are joined together. Therefore, the work of joining two adjacent members becomes easy. In addition, since no complicated work such as joining two adjacent members using bolts and nuts is required,
The time and effort required for joining can be greatly reduced, and the construction period can be significantly shortened. Furthermore, since the work of filling the filler to secure the strength is not necessary after joining the two adjacent members together, the construction period can be shortened significantly. Further, the joint surfaces of two adjacent members can be brought into contact with each other, and then the fitting members of the male joint and the fitted members of the female joint can be fitted together to position the joint surfaces. The joint surface can be easily positioned.

Further, according to the joint of the second aspect, when the fitting member is fitted between the pair of fitted members, the groove of the pair of fitted members and the groove of the fitting member are formed. Due to the cooperation, the fitting member is pulled toward the pair of fitted members, so that the joining force between two adjacent members can be increased.

Further, according to the joint of claim 3,
When the fitting member is fitted between the pair of fitted members, the tapered surface of the fitting member causes the fitting member to be drawn toward the pair of fitted members. The joining force of the members can be increased.

Further, according to the joint of claim 4,
The joining surface of one member and the joining surface of the other member are brought into contact with each other, and a pair of fitting members of the male joint on the joining surface of the one member and a female joint of the joining surface of the other member are fitted. By mating the mating member with each other and engaging the groove of the facing surface of the pair of mated members with the groove of the mating member, two adjacent members are integrally joined. become. Therefore, the work of joining two adjacent members becomes easy. In addition, since no complicated work such as joining two adjacent members with bolts and nuts is required, the labor required for joining can be significantly reduced, and the construction period can be significantly shortened. become. Furthermore, since the work of filling the filler to secure the strength is not necessary after joining the two adjacent members together, the construction period can be shortened significantly. Furthermore, the joint surfaces of two adjacent members can be brought into contact with each other, and after that, the joint members can be positioned by simply fitting the fitting member of the male joint and the fitted member of the female joint. , Easy to position the joint surface

Further, according to the joint of claim 5,
When the fitting member is fitted between the pair of fitted members, the fitting member forms a pair of fitted members by cooperation of the tapered surfaces of the pair of fitting members and the fitting member. Therefore, the joining force between two adjacent members can be increased.

Further, according to the joint of claim 6,
When the fitting member is fitted between the pair of fitted members, the fitting member forms a pair of fitted members due to the cooperation of the diagonal groove of the pair of fitting members and the diagonal groove of the fitting member. Therefore, the joining force between two adjacent members can be increased.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a first embodiment of a joint according to the present invention, and is an explanatory diagram showing a state in which it is applied to segments that are adjacent in the circumferential direction.

2 is a front view of a female joint of the joint shown in FIG. 1. FIG.

FIG. 3 is a right side view of FIG. 2.

FIG. 4 is a plan view of a male joint of the joint shown in FIG.

5 is a front view of the male joint shown in FIG. 1. FIG.

FIG. 6 is a left side view of FIG.

FIG. 7 is an explanatory view showing the procedure of joining the segments to which the joint of the first embodiment is applied, showing a state in which the joining surface of the movable side segment is brought close to the joining surface of the fixed side segment. It is the explanatory view shown.

FIG. 8 is an explanatory view showing a procedure of joining segments to which the joint of the first embodiment is applied, showing a state in which the joining surface of the fixed side segment is in contact with the joining surface of the movable side segment. It is the explanatory view shown.

FIG. 9 is an explanatory view showing a procedure for joining segments to which the joint of the first embodiment is applied, in which male and female joints are fitted to each other to integrate adjacent segments. It is explanatory drawing which showed the state joined.

FIG. 10 is an explanatory view showing a fitted state of the female joint and the male joint of the joint according to the first embodiment.

FIG. 11 is an explanatory view showing a state before fitting and a state after fitting of the female joint and the male joint of the joint of the first embodiment.

FIG. 12 is an explanatory view showing a second embodiment of the joint according to the present invention, and is an explanatory view showing a fitted state of the female joint and the male joint.

FIG. 13 is an explanatory view showing the third embodiment of the joint according to the present invention, and is a front view of the female joint.

FIG. 14 is a right side view of FIG.

FIG. 15 is a plan view of a male joint of the joint according to the third embodiment.

FIG. 16 is a front view of a male joint of the joint of the third embodiment.

FIG. 17 is a left side view of FIG.

FIG. 18 is an explanatory view showing a fitted state of the female joint and the male joint of the joint according to the third embodiment.

FIG. 19 is an explanatory diagram showing a state before fitting and a state after fitting of the female joint and the male joint of the joint according to the third embodiment.

FIG. 20 is an explanatory view showing the fourth embodiment of the joint according to the present invention, and is an explanatory view showing a fitted state of the female joint and the male joint.

FIG. 21 is a plan view of a male joint according to a fourth embodiment.

FIG. 22 is an explanatory view showing the fifth embodiment of the joint according to the present invention, and is a front view of a female joint.

FIG. 23 is a right side view of FIG. 22.

FIG. 24 is a plan view of a male joint of the joint of the fifth embodiment.

FIG. 25 is a front view of a male joint of the joint of the fifth embodiment.

FIG. 26 is a left side view of FIG. 25.

FIG. 27 is an explanatory view showing the sixth embodiment of the joint according to the present invention, and is a partial front view of the female joint.

28 is a bottom view of FIG. 27. FIG.

FIG. 29 is a plan view of the male joint of the joint of the sixth embodiment.

FIG. 30 is an explanatory diagram showing an example of a conventional joint, and is an explanatory diagram applied to segments that are adjacent in the circumferential direction.

[Explanation of symbols]

1 joint 2 Male joint 3 fitting members 5a, 5b, 11a Tapered surface 6, 12 groove 7 female joint 8 Fitted member 15 segments 17, 19 Bonding surface

Claims (6)

[Claims] 1. A joint for integrally joining two adjacent members, wherein a male joint provided on the one member,
The male joint is provided on the other member, and the female joint is fitted to the male joint, and the male joint is provided on the joint surface of the one member, and has a plurality of grooves on the surface. A fitting member provided, wherein the female joint is
The pair of fitted members is provided on the joining surface of the other member, and has a pair of fitted members on the surface of which a plurality of grooves capable of engaging with the grooves of the fitting member are provided. By fitting the fitting member between them and engaging the pair of mating member-side grooves and the fitting member-side groove with each other, it is possible to integrally join two adjacent members. Characteristic joint. 2. The joint according to claim 1, wherein the groove of the pair of mating members and the groove of the mating member are diagonal grooves that are oriented in a direction to increase a joining force between two adjacent members. A joint characterized by being formed. 3. The joint according to claim 1, wherein the contact surface of the fitting member with the fitted member is a tapered surface that enhances the joining force between two adjacent members. And joints. 4. A joint for integrally joining two adjacent members, which is a male joint provided on the one member,
The male joint is provided on the other member, and the female joint is fitted to the male joint, and the male joint is provided on the joint surface of the one member, and has a plurality of grooves on the surface. A fitting member provided, wherein the female joint is
A pair of fitted members provided to face the joining surface of the other member and provided with a plurality of grooves that can engage with the grooves of the fitting member on the facing surface; By fitting the fitting member between the fitted members and engaging the fitting member side groove and the fitting member side groove with each other, two adjacent members are integrally joined. A joint characterized by that. 5. The joint according to claim 4, wherein the facing surfaces of the pair of fitted members are formed into tapered surfaces, and the surfaces of the fitting members corresponding to the tapered surfaces are formed into the tapered surfaces. A joint characterized by being formed on a matching tapered surface. 6. The joint according to claim 4, wherein the groove of the mating member and the groove of the mating member are formed as oblique grooves that are oriented in a direction that enhances the bonding force between two adjacent members. A joint characterized by that.