JP4278006B2 - Passage construction method and passage wall member - Google Patents

Description

The present invention relates to a method of constructing a passage formed at the widthwise end of a traffic road such as a tunnel, in particular, a curved and curved traffic road, and various electric wires, communication lines, The present invention relates to a passage construction method and a passage wall member in which a wiring pipe for storing a water pipe and various signal lines is provided.

2. Description of the Related Art Conventionally, for example, a retaining wall structure and a retaining wall structure member (see Japanese Patent Application Laid-Open No. 2002-327600) that form a passage for a tunnel supervisor in the tunnel longitudinal direction end have been proposed.

With this conventional proposal, it is possible to accurately remove drainage from the road surface and spring water from the side wall of the tunnel without having to enlarge the cross section of the tunnel, and the retaining wall structure of the inspector passage in the tunnel that can reduce construction costs The purpose of the present invention is to provide a retaining wall constituting member for the inspector passage in the tunnel, which can be provided, and can reduce the on-site process as much as possible, and can greatly shorten the construction period.

However, with the conventional retaining wall constituting member, it is difficult to perform the construction using the conventional member, particularly in a curved tunnel.

JP 2002-327600 A

Thus, the present invention was devised to solve the above-described conventional problems, and particularly relates to the formation of a passage at the end in the traffic width direction such as in a curved tunnel, and the like, which can reduce the construction cost. To provide a tunnel wall construction method that can be used effectively for the path formation construction in a curved place by reducing the construction process on site and greatly shortening the construction period. It is the purpose.

According to the present invention,
It is a construction method of a passage provided at the width direction end of a traffic road,
A base piece and a passage wall piece that rises substantially perpendicularly from one end of the base piece, which are spaced apart from the side wall of the traffic path, are substantially L-shaped, and the base piece has a through hole and a notch. And a passage wall member, in which the reinforcing bars arranged in the through hole or in the through hole and the notch are exposed, are erected in the vertical direction with respect to the passage wall piece. In addition, along the longitudinal direction of the curved traffic path, at least the longitudinal end of the passage wall piece abuts and is installed in a curved state,
Concrete was placed from between the passage wall piece and the side wall, and the through-hole and the cutout portion of the foundation piece were passed through and integrated with the placed concrete.
It is characterized by
Or
It is a construction method of a passage provided at the width direction end of a traffic road,
Formed in a substantially L shape by a base piece and a passage wall piece that rises substantially perpendicularly from one end of the base piece at a distance from the side wall of the traffic road, and the base piece has a through hole and an opening. A concave cutout portion facing outward in the direction is provided, and a reinforcing bar arranged in the through hole or in the through hole and the concave cutout is exposed, and the outer side constituting the concave cutout portion The tip of the projecting piece has a passage wall member whose length is shorter than the length of the base piece in the longitudinal direction, and stands vertically in the passage wall piece, and at least along the longitudinal direction of the curved traffic path. Connected and installed in a curved state by contacting the longitudinal ends of the wall pieces,
Concrete was cast from between the passage wall piece and the side wall, and the cast concrete was passed through the through hole and the concave cutout portion of the foundation piece and integrated.
It is characterized by
Or
A member for a passage wall used in a tunnel passage construction method ,
The base piece and a passage wall piece rising substantially vertically from one end of the base piece are substantially L-shaped, and the base piece is provided with a through hole and a notch, and the through hole or the through hole and In the notch, the reinforcing bars that are arranged are exposed and arranged.
It is characterized by
Or
A member for a passage wall used in a tunnel passage construction method ,
The base piece and the passage wall piece that rises substantially vertically from one end of the base piece are substantially L-shaped, and the base piece is provided with a concave notch with a through hole and an opening facing outward in the longitudinal direction, In the through hole or in the through hole and the concave cutout, a reinforcing reinforcing bar is exposed and arranged, and the tip of the outer protruding piece constituting the concave cutout portion is longer than the length of the base piece in the longitudinal direction. Formed short,
It is characterized by this.

According to the present invention, it is possible to provide a method for constructing a passage that can reduce the construction cost, especially for the passage formation in a traffic route such as a curved tunnel, and to greatly reduce the construction process on site and reduce the construction period. There is an excellent effect that it is possible to provide a member for a passage wall that is effectively used for a passage formation construction in a portion that is shortened and curved.

Hereinafter, the present invention will be described based on embodiments shown in the drawings.
In FIG. 1, a passage 2 (see FIG. 4) that can be used by, for example, a tunnel supervisor is formed at the end of the tunnel 1 in the width direction.

Here, a hollow portion 4 for a water channel penetrating in the axial direction is provided in a rectangular parallelepiped body so as to be spaced apart from the side wall 3 of the tunnel 1 and to be substantially parallel to the traveling direction of the tunnel 1. In addition, a waterway member 6 formed by communicating the hollow portion 4 and the upper surface portion with a slit-like drainage groove 5 is connected and laid in the longitudinal direction of the tunnel 1.

Further, a so-called foundation portion 7 is formed on the bottom surface portion between the laid waterway member 6 and the side groove 3 of the tunnel 1 with a predetermined thickness, and leveled concrete is cast on site.

A passage wall member 9 is erected on the base portion 7 via a spacing holder 8.
Here, the member 9 for passage walls according to the present invention is a so-called precast concrete product prepared in advance in a factory or the like, and the existing member 9 for passage walls is adapted to the traffic path in the tunnel 1 at the site. To be used.

In the present invention, the traffic road such as the inside of the tunnel 1 is a curved traffic road. Therefore, the path formed at the end in the width direction of the curved traffic road must also be curved.

Therefore, the configuration of the passage wall member 9 used for the construction of the next curved passage will be described.

The passage wall member 9 includes a base piece 10 having a rectangular shape having a predetermined thickness, and a passage wall piece 11 that rises in a substantially vertical direction from one end in the width direction of the base piece 10 and is substantially L-shaped. Is formed. Here, the passage wall piece 11 has a substantially rectangular shape having a predetermined thickness, and a rectangular recess 12 is provided on the inner surface side thereof. Note that a plurality of the recesses may be provided or may not be provided at all.

In addition, two connection holes are provided at the upper and lower ends at both ends in the longitudinal direction for connection by a connection plate. Here, two or more connecting holes may be provided or may not be provided.

As can be understood from FIG. 6, two concave connection portions 20 and 20 for fitting and connecting using a connection plate may be provided in the vertical direction. Two or more concave connection portions 20 may be provided or may not be provided.

As can be understood from the drawings, the through-holes 13 having a rectangular shape penetrating in the vertical direction in the substantially central portion of the base piece 10 are provided at two locations, and the through-holes 13 intersect with each other in a substantially cross shape. The reinforcing bars 14 are arranged in an exposed state.

Further, in the embodiment shown in FIG. 5, both end portions in the longitudinal direction of the base piece 10 are notched to be provided with notches 21 and 21, and the reinforcing bars are also arranged in the notches 21 and 21. The reinforcing bars 14 are exposed and arranged in a state of intersecting in a substantially cross shape. In FIG. 5, the notches 21 and 21 are formed at both ends in the longitudinal direction. However, a type in which the notches 21 are formed only at either one end may be used.

Next, as shown in FIG. 2, concrete 15 is placed from the space between the standing passage wall piece 11 and the side wall 3 of the tunnel 1. Thus, the placed concrete 15 passes through the through hole 13 and the notches 21 and 21 and flows to the back surface direction of the foundation piece 10 which is a constituent member of the standing passage wall member 9.

Furthermore, as will be understood from FIG. 2, the concrete 15 is also placed from the gap between the channel member 6 and the lower part of the outer surface of the passage wall piece 11. And it casts to the position used as the in-situ concrete surface 16 shown in FIG. 3, and after that, the cast concrete 15 is hardened and solidified.

In addition, the placement of the concrete 15 from the gap between the channel member 6 and the passage wall piece 11 is not an essential requirement. As described above, the concrete 15 is placed from the space between the standing passage wall piece 11 and the tunnel side wall 3, and the placed concrete 15 passes through the through hole 13 and is erected. You may make it flow to the back surface of the base piece 10 which is a structural member of the member 9 for passage walls, and also make concrete flow from there, and you may make it close the clearance gap between the member 6 for waterways, and the passage wall piece 11. FIG.

Thus, when the concrete 15 is placed as described above, even if the passage wall member 9 is manufactured in the factory in advance and used in the field, the concrete 15 as a whole is manufactured in the field. The passage 2 of the tunnel 1 having the same strength as the above can be obtained.

Here, a reinforcing bar 14 is provided in the through hole 13 of the foundation piece 10 so as to be crossed in a substantially cross shape so as to be exposed. It will be firmly attached. Therefore, the standing strength of the passage wall member 9 is further increased. That is, the spot-cast concrete 16 is cast through the through-hole 10 provided in the foundation piece 10, whereby the passage wall member 9 prepared in advance in the factory is integrated with the spot-cast concrete 15. And has extremely high strength.

In addition, compared to the conventional formwork assembled on-site and all the concrete in the formwork placed on-site, the construction cost can be made extremely low, and the construction period has been shortened. There is a merit that it can be made into a thing.

Then, after laying the wiring path member 17 or the embedded path member 18 made of, for example, a concrete member in the space between the passage wall piece 11 and the tunnel side wall 3, these members are embedded.

Here, the buried object to be used is not limited at all, but ordinary earth and sand may be used.

In addition, as shown in FIG. 6, there is a type in which recesses 12, 12 are provided on the inner surface of the passage wall piece 11, but since the embedded material enters the recess 12, there is this recess 12. In addition, the strength of the entire passage wall piece can be maintained, and the amount of concrete used can be reduced by the amount of the depression 12.

Then, as shown in FIG. 4, concrete 15 is cast in place to form a seal concrete 19 so as to seal between the upper end portion of the passage wall piece 11 and the tunnel side wall 3.

Here, when the sealing concrete 19 is solidified, the surface thereof becomes the passage 2 in the tunnel 1.

By the way, in the present invention, as shown in FIG. 7, in the case of a curved traffic road, for example, a traffic road in a tunnel 1 configured as a curved road, for the passage 2 provided at the end in the width direction of the location. It must be curved and laid.

As described above, the wall member 9 for the passage wall used here is formed in a substantially L shape by the base piece 10 and the passage wall piece 11 rising substantially vertically from one end in the width direction of the base piece 10. In the center of the base piece 10, a rectangular through hole 13 is formed, and both end portions in the longitudinal direction of the base piece 10 are notched, and rectangular notches 21 and 21 are provided ( (See FIG. 5).

In the through hole 13 and the notches 21 and 21, reinforcing bars 14 are arranged so as to be crossed in a substantially cross shape.

Thus, the curved passage forming method using the passage wall member 9 is based on the basic piece as shown in FIGS. 9 and 10 when the passage wall member 9 is connected in the longitudinal direction. The notch portions 21 and 21 provided on both end portions 10 are bent inward so as to be slightly overlapped, and concrete is placed from this state.

This makes it possible to easily form an inwardly curved passage. In addition, the curvature that curves inward can be freely determined at a length twice that of the notch 21, and a curved path with a large curvature or a curved path with a moderate curvature can be freely formed. At this time, at least the end portions in the longitudinal direction of the passage wall pieces 11 and 11 to be connected are brought into contact with each other.

In addition, although the case where the channel | path 2 was constructed in the curved road edge part curved inside, the channel | path 2 curved in the outward direction in the curved curve curved outside can be naturally constructed by this invention. In this case, only the gaps between the notches 21 and 21 or the concave notches 22 and 22 provided at both longitudinal ends of the base piece 10 are widened, and there is no problem in construction. If the strength is to be improved, the reinforcing bar 14 is placed in the space between the adjacent reinforcing bars 14 or 14 on the site, or connected on the site using, for example, a metal connecting member, and replaced with the reinforcing bar 14. Should be achieved.

Next, FIG. 6 shows another embodiment of the present invention. A passage wall member 9 in this embodiment includes a foundation piece 10 and a passage wall piece 11 rising substantially vertically from one end of the foundation piece 10. Thus, a substantially L-shape is formed, and a through hole 13 is provided at the center of the base piece 10 and a concave notch 22 is provided at an end in the longitudinal direction. Although FIG. 6 shows an example in which the concave notch 22 is provided only at one end in the longitudinal direction, the concave notches 22 and 22 may be provided at both ends in the longitudinal direction.

In the through hole 13 and the concave cutout portion 22, the reinforcing bars 14 are arranged in a cross shape so as to cross each other and are exposed, and further, the outer protruding pieces constituting the concave cutout portion 22. The tip 23 is configured to be shorter than the length of the passage wall piece 11 in the longitudinal direction by cutting or the like.

Thus, the method of forming the curved passage 2 using the passage wall member 9 according to the present embodiment (the type in which the concave notches 22 and 22 are provided at both ends in the longitudinal direction) is the passage wall member. When connecting 9 in the longitudinal direction, as will be understood from FIG. 11, outer projecting piece tips 23, 23 provided on both end sides of the base piece 10 are brought into contact with each other. Then, since the outer projecting piece tips 23 are formed shorter than the length of the passage wall piece 11 in the longitudinal direction, the outer projecting piece tips 23 inevitably bend inward and can be laid in a curved manner. Also at this time, at least the longitudinal end portions of the passage wall pieces 11 and 11 to be connected are brought into contact with each other.

And what is necessary is just to cast concrete from this state. Here, as a merit of using the passage wall member 9 according to the present embodiment, the weight of the foundation piece 10 can be made heavier by the amount formed as the concave cutout portion 22 than the cutout portion 21. When standing and constructing the passage wall piece 11, the standing stability of the passage wall member 9 can be improved.

Further, in the member 9 for passage wall in this embodiment, it is apt to be understood that the curvature range when bending inward is narrow, but the outer protrusion tip 23 is further cut at the site to make it shorter. For example, the curvature can be increased.

In FIG. 7, the end of the base piece 10 in the longitudinal direction is cut obliquely and formed into a substantially trapezoidal shape. Even with this configuration, a curved path can be formed. In FIG. 7, the degree of cutting or the like is not so large, so that the reinforcing bars 14 arranged in the foundation piece 10 are not exposed.

Next, in FIG. 8, a shallow notch 21 is provided at both ends or one end in the longitudinal direction of the base piece 10 so that the reinforcing bars 14 are not exposed, and a notch 21 is further provided at the center in the longitudinal direction. . Such a type of passage wall member 9 can also be used.

BRIEF DESCRIPTION OF THE DRAWINGS It is structure explanatory drawing (the 1) explaining the structure of this invention. FIG. 3 is a configuration explanatory diagram (part 2) illustrating the configuration of the present invention. FIG. 3 is a configuration explanatory diagram (part 3) illustrating the configuration of the present invention; FIG. 6 is a configuration explanatory diagram (part 4) illustrating the configuration of the present invention; It is a structure explanatory view (the 1) explaining the composition of the member for passage walls. It is a structure explanatory view (the 2) explaining the composition of the member for passage walls. FIG. 6 is a configuration explanatory diagram (part 3) illustrating a configuration of a member for a passage wall; FIG. 9 is a configuration explanatory diagram (part 4) illustrating a configuration of a member for a passage wall; FIG. 10 is a configuration explanatory view (No. 5) illustrating a configuration of a member for a passage wall. FIG. 6 is a configuration explanatory view (No. 6) illustrating a configuration of a passage wall member. FIG. 10 is a configuration explanatory view (No. 7) illustrating the configuration of a passage wall member; It is a structure explanatory drawing explaining the conventional structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tunnel 2 Passage 3 Tunnel side wall 4 Hollow part 5 Slit-like drainage groove 6 Channel member 7 Foundation part 8 Spacing retainer 9 Passage wall member 10 Foundation piece 11 Passage wall piece 12 Recess 13 Through-hole 14 Reinforcement reinforcement 15 Concrete 16 On-site concrete surface 17 Wiring path member 18 Buried path member 19 Seal concrete 20 Connection part 21 Notch part 22 Concave notch part 23 Outer protrusion tip

Claims (4)

It is a construction method of a passage provided at the width direction end of a traffic road,
A base piece and a passage wall piece that rises substantially perpendicularly from one end of the base piece, which are spaced apart from the side wall of the traffic path, are substantially L-shaped, and the base piece has a through hole and a notch. And a passage wall member, in which the reinforcing bars arranged in the through hole or in the through hole and the notch are exposed, are erected in the vertical direction with respect to the passage wall piece. In addition, along the longitudinal direction of the curved traffic path, at least the longitudinal end of the passage wall piece abuts and is installed in a curved state,
Concrete was placed from between the passage wall piece and the side wall, and the through-hole and the cutout portion of the foundation piece were passed through and integrated with the placed concrete.
A tunnel passage construction method characterized by this.
It is a construction method of a passage provided at the width direction end of a traffic road,
Formed in a substantially L shape by a base piece and a passage wall piece that rises substantially perpendicularly from one end of the base piece at a distance from the side wall of the traffic road, and the base piece has a through hole and an opening. A concave cutout portion facing outward in the direction is provided, and a reinforcing bar arranged in the through hole or in the through hole and the concave cutout is exposed, and the outer side constituting the concave cutout portion The tip of the projecting piece has a passage wall member whose length is shorter than the length of the base piece in the longitudinal direction, and stands vertically in the passage wall piece, and at least along the longitudinal direction of the curved traffic path. Connected and installed in a curved state by contacting the longitudinal ends of the wall pieces,
Concrete was cast from between the passage wall piece and the side wall, and the cast concrete was passed through the through hole and the concave cutout portion of the foundation piece and integrated.
A tunnel passage construction method characterized by this.
The base piece and a passage wall piece rising substantially vertically from one end of the base piece are substantially L-shaped, and the base piece is provided with a through hole and a notch, and the through hole or the through hole and In the notch, the reinforcing bars that are arranged are exposed and arranged.
The member for passage walls used for the tunnel passage construction method of Claim 1 characterized by the above-mentioned.
The base piece and the passage wall piece that rises substantially vertically from one end of the base piece are substantially L-shaped, and the base piece is provided with a concave notch with a through hole and an opening facing outward in the longitudinal direction, In the through hole or in the through hole and the concave cutout, a reinforcing reinforcing bar is exposed and arranged, and the tip of the outer protruding piece constituting the concave cutout portion is longer than the length of the base piece in the longitudinal direction. Formed short,
The member for passage walls used for the tunnel passage construction method of Claim 2 characterized by the above-mentioned.

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