Disaster prevention facility, fire hydrant facility, fixing member and installation method

Abstract

To provide a disaster prevention facility comprising sufficient installation intensity after performing tunnel reinforcement construction, a fire hydrant facility, a fixing member and an installation method.SOLUTION: Before performing reinforcement construction of a tunnel 10, an opening is formed on a prescribed position of a monitoring person passage, and a side face of a fixing member 70 is fixed to an existing tunnel wall surface 18a corresponding to the opening, and when the reinforcement construction is performed, the side face of the fixing member 70 is embedded in a concrete covering body 16 so that a top face to which a cradle 62 where a fire hydrant facility 30 is installed is fixed is exposed. After finish of the reinforcement construction, the cradle 62 is fixed to the top face of the fixing member 70, and the fire hydrant facility 30 is installed on the cradle 62.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to disaster prevention facilities including a fire hydrant device that stores a fire hose or the like and is installed in a tunnel, fire hydrant facilities, fixing members for installing them in a tunnel, and an installation method thereof. [Background technology]

[0002] Conventionally, fire hydrant devices are installed as disaster prevention equipment in tunnels such as expressways and motorways. In such fire hydrant devices, for example, a fire hose with a water discharge nozzle at the tip and valves including a fire hydrant valve are stored in a fire hydrant storage section inside a housing equipped with a forward-tilting fire hydrant door (forward-tilting door), and two fire extinguishers are stored in a fire extinguisher storage section inside a housing equipped with a fire extinguisher door. In addition, fire hydrant devices are generally installed in the box-cut section of the tunnel wall where a guard passage (inspection gallery) is provided, for example, at intervals of 50 meters along the longitudinal direction of the tunnel (Patent Document 1).

[0003] On the other hand, in such tunnels, when earthquake resistance is to be improved or the tunnel wall surface has deteriorated due to aging, tunnel lining (lining) with reinforcing materials may be carried out as a reinforcement work to improve the tunnel strength. For tunnel lining, for example, an inner lining method is used in which a predetermined thickness of concrete is wrapped around the existing tunnel wall surface along the inner wall of the tunnel body.

[0004] In the tunnel lining reinforcement work, the tunnel wall, including the box-hole where the fire hydrant is installed, is filled with new concrete, so the existing tunnel wall is filled with this concrete and at least a part of the guard passage is demolished. Therefore, the existing fire hydrant installed in the box-hole of the tunnel wall needs to be moved to the guard passage after the tunnel lining is completed. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2001-000571 A Summary of the Invention [Problem to be solved by the invention]

[0006] However, since the concrete strength of the tunnel walls after the tunnel lining and the floor panels (concrete roadbed) of the existing guard passage are weak, if anchor bolts or the like are driven into the tunnel walls or the floor panels of the guard passage to secure the fire hydrant mounting as in the past, the anchor strength will be insufficient, resulting in a problem of reduced earthquake resistance related to the installation of the fire hydrant.

[0007] The method of extending the legs of the stand to under the floorboards of the guard passage cannot be adopted if the floorboards of the guard passage are backfilled with sand or gravel, because the legs of the stand will be placed on this sand or gravel, and the installation strength will be insufficient, and furthermore, the stand will corrode due to the moisture contained in the sand or gravel. Also, if a water control valve is installed on the water supply pipe branching off from the main water distribution pipe laid under the floorboards, there is a problem that the fire hydrant device is placed near the top of the water control valve, making it difficult to operate the water control valve.

[0008] The present invention proposes a solution to the problem of relocating such fire hydrant equipment, and aims to provide disaster prevention equipment, fire hydrant equipment, fixing members, and installation methods that have sufficient installation strength after tunnel reinforcement work. [Means for solving the problem]

[0009] [Disaster prevention equipment] The present invention is a disaster prevention equipment that is installed on an inspection gallery or a guard passage along a tunnel wall in association with reinforcement work for lining the tunnel wall, in which a disaster prevention device installed on an existing tunnel wall is installed, A fixing member that is fixed to the existing tunnel wall and partially embedded in the lined tunnel wall; A stand that is connected and fixed to the fixing member and on which the disaster prevention device is installed; The present invention is characterized by comprising:

[0010] [Fire hydrant facilities] The present invention relates to a fire hydrant system that is installed on an inspection gallery or a guard passage along a tunnel wall in association with reinforcement work for lining the tunnel wall, in which a fire hydrant device installed on an existing tunnel wall is installed, and A fixing member that is fixed to the existing tunnel wall and partially embedded in the lined tunnel wall; A stand that is connected and fixed to the fixing member and on which the fire hydrant device is installed; The present invention is characterized by comprising:

[0011] [Number of fixing parts installed] The fixing members are embedded and installed in at least two places inside the lined tunnel wall.

[0012] [Structure of fixing parts] Here, the fixing member is A first surface is fixed to the existing tunnel wall and embedded in the lined tunnel wall; The first surface is fixed to the existing tunnel wall, and the second surface allows the platform to be fixed horizontally. Equipped with.

[0013] [Shape of fixed part] Moreover, the first surface of the fixing member has a curved shape substantially equal to the existing tunnel wall surface.

[0014] [Pipe storage box] The fire hydrant equipment of the present invention is installed to the side of a fire hydrant device that has been relocated and installed on a rack, and includes a water supply pipe that branches off from the main water distribution pipe under the monitor's passage and is connected to the fire hydrant device, and a piping storage box that stores a water control valve installed on the water supply pipe.

[0015] Here, the piping storage box is installed on a stand together with the fire hydrant device.

[0016] [Fixed part] The present invention is a fixing member for installing a fire hydrant equipment on an inspection gallery or a guard passage along a tunnel wall when reinforcement work for lining the tunnel wall is being carried out, The first side is fixed to the existing tunnel wall, A second surface on the side for connecting and fixing a frame on which the fire hydrant device is installed; Equipped with A feature of this structure is that the first surface side is buried in the lined tunnel wall when reinforcement work is carried out.

[0017] [How to install fire hydrants] The present invention relates to a method for installing a fire hydrant equipment to an inspection gallery or a guard passage along a tunnel wall when reinforcement work for lining the tunnel wall is being carried out, Before the reinforcement work is carried out, an opening is formed at a specified location in the inspection gallery or guard passage, and the first surface of the fixing member is fixed to the existing tunnel wall surface corresponding to the opening, When reinforcement work is carried out, the first surface side of the fixing member is embedded in the tunnel wall to be lined so that the second surface, which is the part where the stand for installing the fire hydrant device of the fixing member is fixed, is exposed. After the reinforcement work is completed, a stand is fixed to the second surface of the fixing member, and a fire hydrant device is installed on the stand.

[0018] In addition, when the reinforcement work is carried out, the opening of the monitor passage is closed so that the second surface of the fixing member is exposed.

[0019] [How to install the piping storage box] Furthermore, after the fire hydrant device is installed on the stand fixed to the second surface of the fixing member, a water supply pipe provided with a water control valve is branched off from the drainage main pipe and connected to the fire hydrant device; After the water supply piping is connected to the fire hydrant device, a piping storage box that stores the water supply piping and the water control valve is installed on a stand fixed to the second surface side of the fixing member. Effect of the Invention

[0020] [Effects of disaster prevention equipment and fire hydrant facilities] The present invention is a disaster prevention equipment and fire hydrant equipment that is installed on an inspection gallery or guard passage along a tunnel wall in conjunction with reinforcement work to cover the tunnel wall, and which comprises a fixing member that is fixed to the existing tunnel wall and partially embedded in the lined tunnel wall, and a stand on which the disaster prevention equipment is installed, which is connected and fixed to the fixing member.By doing so, the existing fire hydrant equipment that was installed in the box-removed section of the tunnel wall can be relocated to the position of the road surface (floor plate) of the guard passage ahead while maintaining its height, and also, if the road surface of the guard passage and the stand are separated, corrosion of the stand can be prevented.

[0021] [Effect of fixed parts] The fixing member is embedded and installed in at least two locations inside the lined tunnel wall and is fixed to the existing tunnel wall surface, and has a first surface that is embedded in the lined tunnel wall surface, and a second surface to which the frame can be fixed horizontally with the first surface fixed to the existing tunnel wall surface.The first surface of the fixing member has a curved shape that is approximately the same as the existing tunnel wall surface, so that the fixing member can be installed so as not to interfere with the water distribution main pipe laid under the monitor's passage, even in cases where the water distribution main pipe is located directly below the floor board of the monitor's passage.

[0022] [Effect of piping storage box] The fire hydrant equipment of the present invention is installed to the side of a fire hydrant device that has been relocated and installed on a rack, and includes a piping storage box that stores a water supply piping that branches off from the main water distribution pipe under the monitor's passage and is connected to the fire hydrant device, and a water control valve installed on the water supply piping.By installing the piping storage box on the rack, storage space can be secured for the water supply piping and water control valve connected to the fire hydrant device.

[0023] [Effect of fixed parts] The present invention is a fixing member for installing a fire hydrant equipment on an inspection gallery or guard passage along a tunnel wall when reinforcement work is being carried out to cover the tunnel wall, and has a first side that is fixed to the existing tunnel wall and a second side that connects and fixes the stand on which the fire hydrant device is installed.By embedding the first side in the lined tunnel wall when reinforcement work is being carried out, the fixing member for fixing the stand on which the fire hydrant device is installed can be fixed with bolts to anchors (anchor nuts) driven into the existing tunnel wall (before the tunnel was lined), which has strong concrete, and this prevents a decrease in earthquake resistance associated with the installation of the fire hydrant device.

[0024] [Effects of fire hydrant installation methods] The present invention is a method for installing a fire hydrant equipment, in which the fire hydrant equipment is relocated to an inspection gallery or observer's passage along a tunnel wall when reinforcement work is being carried out to cover the tunnel wall, in which an opening is formed at a predetermined location in the inspection gallery or observer's passage before the reinforcement work is carried out, and a first surface of a fixing member is fixed to the existing tunnel wall surface corresponding to the opening, and when the reinforcement work is carried out, the first surface side of the fixing member is embedded in the tunnel wall surface to be covered so that the second surface of the fixing member, which is the portion to which the mount for installing the fire hydrant equipment is fixed, is exposed, and the opening of the observer's passage is blocked so that the second surface of the fixing member is exposed, and after the reinforcement work is completed, the mount is fixed to the second surface of the fixing member and the fire hydrant equipment is installed on the mount. As a result, the fixing member can be installed on the existing tunnel wall surface, which has a strong concrete strength, before the tunnel reinforcement work, and the position and angle can be adjusted, so that it can also accommodate the gradient of the observer's passage and no hindrance is caused to the construction process of the reinforcement work.

[0025] [Effects of piping storage box installation method] In addition, after the fire hydrant device is installed on the stand fixed to the second surface of the fixed member, a water supply pipe equipped with a water control valve is branched off from the main water distribution pipe and connected to the fire hydrant device, and after the water supply pipe is connected to the fire hydrant device, a piping storage box that stores the water supply pipe and the water control valve is installed on the stand fixed to the second surface of the fixed member.This allows the placement and operability of the water control valve installed on the water supply pipe to be appropriately accommodated even if the area under the floorboards, including the main water distribution pipe in the monitor's passage, is buried in sand or gravel during tunnel reinforcement work. [Brief description of the drawings]

[0026] [Figure 1] FIG. 2 is an explanatory side view of the installed state of the fire hydrant device according to the present invention before relocation. [Diagram 2] FIG. 2 is an explanatory diagram showing the fire hydrant device of FIG. 1 as viewed from the front. [Diagram 3] FIG. 2 is an explanatory side view of the installed state of the fire hydrant device according to the present invention after relocation. [Figure 4] FIG. 4 is an explanatory diagram showing the fire hydrant device of FIG. 3 as viewed from the front. [Diagram 5] FIG. 4 is an explanatory diagram showing in detail the installation state of the fire hydrant device of FIG. 3. [Figure 6] FIG. 6 is an explanatory diagram showing the stand and the fixing member in FIG. 5. [Figure 7] FIG. 2 is a perspective view showing a fixing member according to the present invention. [Figure 8] FIG. 2 is an explanatory diagram showing a schematic diagram of the installation process of the fire hydrant device according to the present invention. [Figure 9] FIG. 2 is an explanatory diagram showing a schematic diagram of the installation process of the fire hydrant device according to the present invention. [Figure 10] FIG. 2 is an explanatory diagram showing a schematic diagram of the installation process of the fire hydrant device according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0027] Hereinafter, an embodiment of a disaster prevention facility, a fixing member, and an installation method according to the present invention will be described in detail with reference to the drawings, taking a fire hydrant facility as an example of the disaster prevention facility. Note that the present invention is not limited to the following embodiment.

[0028] [Basic Concept of the Embodiment] First, a basic concept of the embodiment will be described. The embodiment generally relates to a fire hydrant system including a fire hydrant device in which a fire hose stored in a housing is pulled out during a firefighting activity.

[0029] Here, a "fire hydrant system" is a type of disaster prevention equipment that is installed in areas subject to firefighting, such as tunnels on expressways and motorways. A fire hydrant system stores or installs fire hydrant equipment inside, such as a fire hose, valves including a fire hydrant valve, and a fire hydrant valve opening / closing lever for opening and closing the fire hydrant valve, and also includes systems that are equipped with emergency notification devices such as a red indicator light and a transmitter, and that store a fire extinguisher.

[0030] In addition, the fire hydrant device of the embodiment is installed in a box-cut section of the tunnel wall where the monitor's passage is provided, and is then relocated during tunnel reinforcement work to be installed so that it is exposed above the monitor's passage, and the casing is engaged and installed on a rack.

[0031] Here, "tunnel reinforcement work" and "tunnel reinforcement work" refer to reinforcement work to improve tunnel strength when the earthquake resistance of a tunnel is to be improved or when the tunnel strength has decreased due to gradual deterioration of the tunnel wall surface after long-term use, and refers to the application of lining to the existing tunnel wall surface.

[0032] The tunnel lining in the embodiment is designed to use an inner wrapping method, in which a specified thickness of concrete is wrapped around it as reinforcing material.In this case, the boxed-out space (fire hydrant storage section) is cut out of the tunnel wall to install a fire hydrant device, and the boxed-out space (piping storage section) is cut out of the tunnel wall to place a water supply pipe to connect the fire hydrant device to the main distribution pipe laid under the guard passage.Since the boxed-out space is backfilled with concrete, it is not possible to return the fire hydrant device to its state before the tunnel reinforcement work is completed after the tunnel reinforcement work.

[0033] Therefore, the fire hydrant equipment will be relocated to a location different from where it was before the tunnel reinforcement work, but the relocated fire hydrant equipment will need to have installation strength that provides the same earthquake resistance as the tunnel body after the reinforcement work. However, because the concrete strength of the floor panels of the existing guard passage and the tunnel wall surface (concrete lining) after the tunnel lining is weak, it will be difficult to obtain such installation strength by simply installing the fire hydrant equipment on the guard passage or on the tunnel wall surface after the tunnel lining is completed.

[0034] Therefore, in the relocation work of the embodiment, the fire hydrant device installed in the box-cut section of the tunnel wall before the reinforcement work is removed together with the stand and the water supply pipe connecting the fire hydrant device to the main water supply pipe, and then a specified location in front of the box-cut section of the watchman's passage is excavated to form an opening of a specified range in the floor board of the watchman's passage. Next, a fixing member for installing the fire hydrant device is fixed to the existing tunnel wall below the opening, which is the lower side of the floor board of the watchman's passage.

[0035] Here, the term "mount" refers to a structure that supports an object using pillars and beams, etc., and includes concepts such as a support base, foundation, base, seat, and base. The mount in the embodiment is a member made of steel plate, for example, a plate material or an angle material welded into a rectangular frame structure, which is fixed to the box cutout part of the tunnel wall before the fire hydrant device is relocated, and is fixed to the road surface of the monitor's passage via a fixing member when the fire hydrant device is relocated.

[0036] In addition, the "fixing member" is a member used to install a fire hydrant device inside a tunnel, and is made of steel plate with a first surface that is fixed to the existing tunnel wall surface and a second surface to which a stand on which the fire hydrant device is to be installed is fixed, and is an approximately "U" shaped member formed by welding, for example, angle iron; in this case, the upper horizontal bar of the "U" forms the first surface, and the vertical bar extending downward from the horizontal bar forms the second surface.

[0037] Then, when the tunnel lining is carried out, for example, the first surface side of the fixing member is embedded in the reinforced tunnel wall surface with reinforcing concrete so that the portion of the second surface of the fixing member where the frame is fixed is exposed.

[0038] After the tunnel reinforcement work is completed, a frame is fixed to the second surface of the fixing member, and the fire hydrant device that was removed before the tunnel reinforcement work is installed on the frame. After that, the fire hydrant device installed on the frame is connected to the main water supply pipe with a water control valve.

[0039] At this time, the water supply piping branching off from the main water distribution pipe located under the floor board of the guard passage will be connected to the piping inside the fire hydrant device from the side of the fire hydrant device, just as it was before the tunnel reinforcement work, so the water supply piping and water control valve will be exposed to the side of the fire hydrant device.

[0040] In order to store the water supply piping and the water control valve so that they are not exposed, a piping storage box for storing the exposed water supply piping and the water control valve may be installed adjacent to the side of the fire hydrant device.In this case, the piping storage box is installed together with the fire hydrant device on the rack on which the fire hydrant device is installed.

[0041] Here, the "piping storage box" is a box member attached to the fire hydrant device installed inside the tunnel, which stores the water supply pipe connecting the fire hydrant device to the main water distribution pipe and the water control valve installed on the water supply pipe, and is installed to the side of the fire hydrant device. The piping storage box is a box-shaped cover member with an opening on the side that contacts the fire hydrant device, and an operation door for operating the water control valve is provided on the front (front face).

[0042] A specific embodiment will be described below. The embodiment describes a fire hydrant device that is relocated in association with tunnel lining construction, in which an existing fire hydrant device that is embedded in a box-removed portion of a tunnel wall is relocated to a guard passageway after the tunnel lining construction.

[0043] In addition, the terms "arrangement," "installation," "storage," "equipment," "provided," and the like can encompass other terms that can be substituted for each term, and are concepts that can include the meanings of terms that can be substituted for the meanings of other terms, such as "attachment," "mounting," "fixing," and "installation."

[0044] [Specific details of the embodiment] The fire hydrant device, fixing member, and installation method thereof according to the embodiment will be specifically described below. a. Fire hydrant equipment a1. Fire hydrant equipment a2.Pipe storage box b. Mounting stand c. Fixing member c1. Fixing member c2. Other embodiments of the fixing member d. How to install fire hydrants d1. Removal of fire hydrant equipment and water supply piping d2. Form an opening in the floor of the guard passage d3. Fixing the fixed parts d4. Embedding of fixing members into the tunnel lining surface d5. Reconstruction of guard passage d6. Fixing the stand to the fixed member d7. Installation of fire hydrant equipment on a stand d8. Connection of piping and water control valves to fire hydrant devices d9. Installation of piping storage box on stand e. Modifications of the present invention

[0045] [a. Fire hydrant equipment] The fire hydrant device will be specifically described with reference to Fig. 1, which shows the installation state of the fire hydrant device according to the present invention before relocation from the side (toward the cross section of the tunnel), Fig. 2, which shows the fire hydrant device of Fig. 1 from the front, Fig. 3, which shows the installation state of the fire hydrant device according to the present invention after relocation from the side, and Fig. 4, which shows the fire hydrant device of Fig. 3 from the front.

[0046] Here, in the explanation of Figures 1 to 4, the X, Y and Z directions are directions perpendicular to each other, and specifically, when looking at the front of the fire hydrant device from the front, the X direction is the left-right direction, the Y direction is the up-down direction, and the Z direction is the front-back direction. Also, the +X side in the X direction is the right side, the -X side is the left side, the +Y side in the Y direction is the upper side, the -Y side is the lower side, and the +Z side in the Z direction is the front side, and the -Z side is the rear side. This point is also the same in Figures 5 to 10 which are embodiments of the present invention.

[0047] (a1. Fire hydrant equipment) As shown in Fig. 1, a supervisor's passage 20 is provided along the tunnel wall surface 18a of the tunnel body 14, which is constructed of an arch-shaped concrete frame parallel to the road surface 12 inside the tunnel. At the positions of the supervisor's passages 20 on the tunnel wall surface 18a, fire hydrant storage sections 22a formed by cutting out a box from the tunnel body 14 are provided at intervals of, for example, 50 m, and before the tunnel reinforcement work, the fire hydrant devices 30 before being relocated are stored in the fire hydrant storage sections 22a.

[0048] 1 and 2, inside the guard passage 20 (below the floor plate 20a), a water supply main pipe 24 is laid in the longitudinal direction of the tunnel, and a water supply pipe 26 that rises from the water supply main pipe 24 to the side of the fire hydrant device 30 passes through a pipe storage section 22b formed by boxing out the tunnel body 14 below the guard passage 20, and is connected to the internal pipe of the fire hydrant device 30. A water control valve 28 is provided on the water supply pipe 26.

[0049] The fire hydrant device 30 is installed on a stand 60 installed in the fire hydrant storage section 22a, and fire hydrant equipment such as a fire hose, valves including a fire hydrant valve, and a fire hydrant valve opening / closing lever for opening and closing the fire hydrant valve are stored or installed inside the fire hydrant door 32 and the maintenance door 34. In addition, emergency notification equipment such as a red indicator light 38 and a transmitter 40 are installed on the door 36 of the fire hydrant device 30, and a fire extinguisher is stored inside the fire extinguisher door 42.

[0050] As shown in Figure 3, after the tunnel reinforcement work, a new tunnel wall surface 18b is formed on the inside of the tunnel body 14 by the concrete lining 16, and the box-out section 22, which is composed of the fire hydrant storage section 22a in which the fire hydrant device 30 was stored and the piping storage section 22b in which the water supply piping 26 was stored before the tunnel reinforcement work, is also filled with concrete.

[0051] 3 and 4, the fire hydrant storage section 22a has been filled in due to the tunnel reinforcement work, so the fire hydrant device 30 is installed on the road surface of the monitor passage 20 in front of the filled-in fire hydrant storage section 22a via a stand 62 fixed to a fixing member 70. In addition, a water supply pipe 26 that rises from the main water distribution pipe 24 to the side of the fire hydrant device 30 is connected to the internal pipe of the fire hydrant device 30, and a water control valve 28 is provided on the water supply pipe 26. Specific examples of the installation method of the fixing member 70 and the fire hydrant device 30 will be described later.

[0052] (a2.Pipe storage box) As shown in Figure 4, a piping storage box 50 is placed to the side of the fire hydrant device 30 that was relocated to the road surface of the monitor's passage 20 after the tunnel reinforcement work, and stores the water supply pipe 26 that branches off from the water distribution main 24 under the monitor's passage 20 and is connected to the fire hydrant device 30. The piping storage box 50 is provided with an operation door 52 for operating the water control valve 28 and for maintaining and inspecting the water supply pipe 26. By providing the piping storage box 50, the water supply pipe 26 can be concealed, and the water control valve 28 installed in the water supply pipe 26 can also be prevented from being erroneously operated by road users, etc.

[0053] 4, the piping storage box 50 is installed together with the fire hydrant device 30 on a stand 62 newly fixed on the road surface of the monitor passage 20, but if the stand 60 on which the fire hydrant device 30 was installed in the fire hydrant storage section 22a before the tunnel reinforcement work is reused, a dedicated stand may be used, or the piping storage box 50 may be configured to be installed directly on the road surface of the monitor passage 20 without using a stand. A specific example of a method for installing the piping storage box 50 will be described later.

[0054] [b. Mounting stand] The mount will be described in detail below. In this description, reference will be made to Fig. 5, which shows in detail the installation state of the fire hydrant device in Fig. 3, and Fig. 6, which shows the mount and fixing member of Fig. 5. Fig. 6(A) shows a plan view of the fixing member, and Fig. 6(B) shows a front view of the mount fixed to the fixing member.

[0055] As shown in Figures 5 and 6, the mounting base 62 is made of steel plate, for example, plate material or angle iron formed into a rectangular frame structure by welding, and is newly set up for installing the fire hydrant device 30 to be relocated. Like the mounting base 60 (see Figures 1 and 2) that was used before the relocation, it has a fire hydrant device installation surface 62a on which the fire hydrant device 30 is installed, and also has a piping storage box installation surface 62b on which the new piping storage box 50 is installed.

[0056] Housing installation holes 64 for bolting the housings of the fire hydrant device 30 and the piping storage box 50 are appropriately formed in the fire hydrant device installation surface 62a and the piping storage box installation surface 62b, which are the upper surfaces of the stand 62, according to the housings to be installed. In addition, fixing members 70 are fastened by bolts 74 through long fixing holes 66 at two locations on the lower surface of the stand 62.

[0057] [c. Fixing member] The fixing member will be described in detail below. In this description, reference will be made to Fig. 7, which shows a fixing member according to the present invention, in addition to Fig. 5 and Fig. 6. Fig. 7(A) shows an embodiment of the fixing member, and Fig. 7(B) shows another embodiment of the fixing member.

[0058] (c1. Fixing member) As shown in Figures 5 and 7(A), the fixing member 70 of the embodiment is formed by an angle member formed in an U-shape, and has a first surface 70a that is fixed to the existing tunnel wall surface 18a (before reinforcement work) and is embedded in the lined tunnel wall surface 18b (after reinforcement work), and a second surface 70b to which the platform 62 can be fixed horizontally with the first surface 70a fixed to the existing tunnel wall surface 18a.

[0059] The first surface 70a of the fixing member 70 has a curved shape substantially equal to the existing tunnel wall surface 18a, and has, for example, two long holes 76 for passing bolts 74 to be fastened to anchor nuts 90 driven into the tunnel body 14 when the fixing member 70 is fixed to the existing tunnel wall surface 18a. In addition, for example, two anchor bolts 78 for fixing the frame 62 with nuts 80 stand upright on the second surface 70b.

[0060] The installation interval of the two anchor bolts 78 of the fixing member 70 is set to the same dimension as the installation interval of the anchor bolts standing on the floor surface of the fire hydrant storage section 22a for the stand 60 on which the fire hydrant device 30 was installed before it was relocated. Also, as shown in Fig. 6, if the monitor passage 20 has a slope θ, the fixing height of the fixing member 70 is adjusted so that the joint surfaces 52a, 52b of the stand 62 are horizontal, thereby installing the fire hydrant device 30 horizontally.

[0061] (c2. Other embodiments of the fixing member) 7(B), a fixing member 72 of another embodiment is formed by a channel member formed in a U-shape, and includes a first surface 72a that is fixed to the existing tunnel wall surface 18a (before reinforcement work) and embedded in the lined tunnel wall surface 18b (after reinforcement work), and a second surface 72b that can horizontally fix the platform 60 with the first surface 72a fixed to the existing tunnel wall surface 18a. The fixing member 72 is similar in form to the above-mentioned fixing member 70 except that the angle material is changed to a channel material, so other explanations will be omitted.

[0062] [d. How to install fire hydrants] A method for installing a fire hydrant, particularly a method for relocating a fire hydrant associated with tunnel reinforcement work, will be specifically described. In this description, in addition to Fig. 5 and Fig. 6, Fig. 8 to Fig. 10, which are schematic diagrams showing a method for installing a fire hydrant (relocation process) according to the present invention, will be referred to. Fig. 8(A) shows the state before tunnel reinforcement work, Fig. 8(B) shows the state after the fire hydrant and water supply piping have been removed, Fig. 8(C) shows the state after an opening has been formed at a designated location of the watchman's passage, Fig. 9(A) shows the state after the fixing member has been fixed to the existing (before reinforcement work) tunnel wall, Fig. 9(B) shows the state after the fixing member has been buried in the tunnel lining surface, Fig. 9(C) shows the state after the watchman's passage has been reconstructed, Fig. 10(A) shows the state after the stand has been fixed to the fixing member, Fig. 10(B) shows the state after the fire hydrant has been installed on the stand and the piping and water control valve have been connected, and Fig. 10(C) shows the state after the piping storage box has been installed on the stand.

[0063] (d1. Removal of fire hydrant equipment and water supply piping) As shown in Fig. 8(A), in the state before the start of tunnel reinforcement work (existing state), the fire hydrant device 30 is stored in a fire hydrant storage section 22a formed by punching out a box of the tunnel body 14, and a water supply pipe 26 that rises up to the side of the fire hydrant device 30 from a water distribution main pipe 24 laid inside the monitor passage 20 (below the floor plate 20a) is connected to the internal pipe of the fire hydrant device 30. The water supply pipe 26 is placed in a pipe storage section 22b formed by punching out a box of the tunnel body 14, and a water control valve 28 is provided.

[0064] Due to the tunnel lining in the tunnel reinforcement work, the fire hydrant storage section 22a in which the fire hydrant device 30 is stored and the piping storage section 22b in which the water supply piping 26 is stored are backfilled with concrete, which is a reinforcing material for the lining, so the fire hydrant device cannot be returned to the state it was in before the tunnel reinforcement work after the tunnel reinforcement work. Therefore, as shown in Figure 8 (B), the fire hydrant device 30 and the water supply piping 26 including the water control valve 28 are removed before the tunnel lining work begins.

[0065] (d2. Creating an opening in the floor of the guard passage) After the fire hydrant device 30 and the water supply piping 26 including the water control valve 28 have been removed from the box removal section 22, and before the tunnel lining work begins, as shown in FIG. 8(C), a predetermined portion is excavated in the floor plate 20a of the guard passage 20 in front of the fire hydrant storage section 22a, and an opening 20b is formed within a predetermined range in the floor plate 20a.

[0066] Here, the location where the floor plate 20a is excavated is a location where the fixing member 70 can be fixed at the position where the fire hydrant device 30 will be installed after the tunnel reinforcement work, and the range where the opening 20b is formed is set so that the fixing member 70 can be fixed to the existing tunnel wall surface 18a that is the underside of the floor surface of the monitor passage 20. In the embodiment, the opening 20b in the floor plate 20a is formed for each fixing member 70 to be fixed, but it may be formed for each frame 62 to be fixed to the fixing member 70.

[0067] (d3. Fixing of fixed parts) After forming an opening 22b in the floor panel 20a of the monitor passage 20, as shown in FIG. 9(A), a fixing member 70 for fixing a stand 62 on which the fire hydrant device 30 is to be installed is fixed with a bolt 74 (to an anchor nut 90 shown in FIG. 5) so that a first surface 70a abuts against the existing tunnel wall surface 18a, which is the underside of the floor surface of the monitor passage 20, through the opening 22b.

[0068] Here, as shown in FIG. 6, when the monitor passage 20 has a gradient θ, the fire hydrant device 30 is installed horizontally by adjusting the fixing height using the long hole 76 of the fixing member 70 so that the fire hydrant device installation surface 62a and the piping storage box installation surface 62b of the stand 62 are horizontal.

[0069] (d4. Embedding of fixing members into the tunnel lining) After the fixing member 70 is fixed to the tunnel wall surface 18a, as shown in Fig. 9(B), a tunnel lining is performed using a reinforcing material along the tunnel wall surface 18a of the tunnel body 14. For the tunnel lining, for example, concrete of a predetermined thickness is poured (wrapped) as a reinforcing material onto the existing tunnel wall surface 18a.

[0070] When concrete is poured, the first surface 70a of the fixing member 70 is embedded in the reinforced tunnel wall surface 18b so that the portion of the second surface 70b of the fixing member 70 for fixing the frame 62 is exposed.

[0071] (d5. Reconstruction of guard passage) After the first surface 70a of the fixing member 70 is embedded in the reinforced tunnel wall surface 18b, the monitor passage 20 is reconstructed as shown in FIG. 9(C), that is, concrete is poured into the opening 20b formed in the monitor passage 20 to form a reconstructed floor panel 20c.

[0072] At that time, concrete is poured into the opening 20b formed in the guard passage 20 so that the second surface 70b of the fixing member 70 is exposed, thereby isolating the mount 62 from the road surface of the guard passage 20 and preventing corrosion of the mount 62. However, depending on the construction situation, etc., the second surface 70b of the fixing member 70 may be buried and only the anchor bolts 78 standing on the second surface 70b may be exposed.

[0073] (d6. Fixing the stand to the fixed member) After the guard passage 20 has been reconfigured to form the reconfigured floor panel 20c, as shown in FIG. 10(A), the anchor bolt 78 standing on the second surface 70b of the fixing member 70 is engaged with the fixing long hole 66 (see FIG. 6) of the stand 62, and the stand 62 is fixed with a nut 80 (not shown in FIG. 10, see FIG. 5).

[0074] (d7. Installation of fire hydrant equipment on a stand) After the stand 62 is fixed to the fixing member 70, the fire hydrant device 30 is placed on the fire hydrant device installation surface 62a (see FIG. 6) of the stand 62 as shown in FIG. 10(B) and bolted using the housing installation hole 64, thereby installing the fire hydrant device 30 on the stand 62.

[0075] (d8. Connection of piping and water control valves to fire hydrant devices) After the fire hydrant device 30 is installed on the rack 62, as shown in Figure 10 (B), the internal piping of the fire hydrant device 30 and the main water distribution pipe 24 are connected by a water supply pipe 26 equipped with a water control valve 28, in the same way as when the fire hydrant device 30 was stored in the fire hydrant storage section 22a before the reinforcement announcement.

[0076] Here, the water supply pipe 26 is connected to the water distribution main 24 through a through hole (not shown) formed in the pipe storage box installation surface 62b of the stand 62 (see FIG. 6) and the reconstructed floor plate 22c of the monitor passage 20.

[0077] (d9. Installation of box piping storage unit on stand) After the water supply piping 26 equipped with the water control valve 28 is connected to the fire hydrant device 30, the piping storage box 50 for storing the water supply piping 26 and the water control valve 28 is installed on the piping storage box installation surface 62b of the stand 62 fixed to the second surface 70b of the fixing member 70, as shown in Figure 10 (C).

[0078] In addition, before installing the water supply piping 26 equipped with the water control valve 28, the piping storage box 50 may be installed on the stand 62, and then the water supply piping 26 equipped with the water control valve 28 may be connected to the fire hydrant device 30.

[0079] In the case where the stand 60 on which the fire hydrant device 30 was installed in the fire hydrant storage section 22a before the reinforcement work of the tunnel is reused (reused), a stand dedicated to the piping storage box 50 may be used, or a structure that allows the device to be installed directly on the road surface of the guard passage 20 without using a stand may be used. [e. Modifications of the present invention] In the above embodiment, a method for relocating a fire hydrant device associated with tunnel reinforcement work is described, but the present invention is also applicable to cases where a new fire hydrant device is "installed" after tunnel reinforcement work, rather than "relocated."

[0080] Furthermore, in the above embodiment, with regard to the work of fixing the fixing members to the existing tunnel wall surface (tunnel body), a predetermined number of openings are formed in the floor boards of the monitor's passage before the start of the tunnel reinforcement work, but if all of the floor boards of the monitor's passage are removed during the tunnel reinforcement work, the work of fixing the fixing members may be performed after the floor boards have been removed.

[0081] In addition, the above embodiment describes a case where a fire hydrant device is installed above a guard passage that is high above the roadway surface (for example, about 90 cm above the roadway surface), but the present invention is also applicable to a case where a fire hydrant device is installed above a guard passage that is low above the roadway surface (for example, about 25 cm above the roadway surface).

[0082] Furthermore, in tunnel lining, when pouring concrete between the formwork and the old tunnel wall surface, if there is a risk of interference between the formwork and the first surface of the fixing member (if the formwork cannot escape the fixing member), a cover may be installed to protect the area around where the fixing member is to be installed from the concrete before the tunnel lining begins. After the tunnel lining is completed, the protective cover is removed, and the fixing member is installed in the space formed by the protective cover in the above-mentioned embodiment, and then a dedicated formwork is installed again and concrete is poured in, so that the fixing member is installed so that a part of it is fixed to the old tunnel wall surface while the part where the fire hydrant rack is fixed is exposed.

[0083] (others) The present invention is not limited to the above-described embodiment, but includes appropriate modifications that do not impair the objects and advantages of the present invention, and is not limited by the numerical values ​​shown in the above-described embodiment. [Explanation of symbols]

[0084] 10: Tunnel 12: Road surface 14: Tunnel body (concrete frame) 16: Concrete lining 18a: Tunnel wall before reinforcement work 18b: Tunnel wall after reinforcement work 20: Guard passage 20a: Floorboard 20b:Aperture 20c: Reconstructed floorboard 22: Box removal part 22a: Fire hydrant storage area 22b: Pipe storage section 24: Water main 26: Water supply pipe 28: Water control valve 30: Fire hydrant equipment 32: Fire hydrant door 34: Maintenance door 36: Electric door 38: Red indicator light 40: Transmitter 42: Fire extinguisher door 50:Pipe storage box 52: Operation door 60, 62: Stand 62a: Fire hydrant installation surface 62b: Piping storage box installation surface 64: Housing installation hole 66: Fixing long hole 70, 72: Fixing member 70a, 72a: 1st page 70b, 72b: 2nd side 74: Bolt 76: Long hole 78: Anchor bolt 80: Nut 90: Anchor nut

Claims

1. A disaster prevention device installed on an existing tunnel wall is installed on an inspection gallery or a guard passage along the tunnel wall in association with reinforcement work to cover the tunnel wall, A fixing member fixed to the existing tunnel wall and partially embedded in the lined tunnel wall; A stand is connected and fixed on the fixing member and on which the disaster prevention device is installed; A disaster prevention facility characterized by comprising:

2. A fire hydrant device installed on an existing tunnel wall is installed on an inspection gallery or a guard passage along the tunnel wall in association with reinforcement work to cover the tunnel wall, A fixing member fixed to the existing tunnel wall and partially embedded in the lined tunnel wall; A stand on which the fire hydrant device is installed and connected and fixed on the fixing member; A fire hydrant facility comprising:

3. The fire hydrant system according to claim 2, The fire hydrant equipment is characterized in that the fixing members are embedded and installed at at least two locations inside the lined tunnel wall.

4. The fire hydrant system according to claim 2, The fixing member is A first surface is fixed to the existing tunnel wall surface and embedded in the lined tunnel wall surface; A second surface on which the frame can be horizontally fixed in a state in which the first surface is fixed to the existing tunnel wall surface; A fire hydrant facility comprising:

5. The fire hydrant system according to claim 4, The fire hydrant equipment, wherein the first surface of the fixing member has a curved shape substantially equal to the existing tunnel wall surface.

6. The fire hydrant system according to claim 2, A fire hydrant system characterized by being installed to the side of the fire hydrant device that has been relocated and installed on the frame, and comprising a water supply pipe that branches off from the main water distribution pipe under the monitor's passage and is connected to the fire hydrant device, and a piping storage box that stores a water control valve installed on the water supply pipe.

7. The fire hydrant system according to claim 6, The fire hydrant system is characterized in that the piping storage box is installed on the rack.

8. A fixing member for installing a fire hydrant on an inspection gallery or guard passage along a tunnel wall when reinforcement work is being carried out to cover the tunnel wall. A first surface that is fixed to an existing tunnel wall; A second surface on the side for connecting and fixing a frame on which the fire hydrant device is installed; Equipped with A fixing member characterized in that the first surface side is embedded in the lined tunnel wall surface when the reinforcement work is carried out.

9. A method for installing a fire hydrant in a tunnel wall, in which the fire hydrant is relocated to an inspection gallery or a guard passage along the tunnel wall when reinforcement work for lining the tunnel wall is being carried out, comprising the steps of: Before the reinforcement work is carried out, an opening is formed at a predetermined location of the inspection gallery or the guard passage, and a first surface of a fixing member is fixed to an existing tunnel wall surface corresponding to the opening; The first surface side of the fixing member is embedded in the tunnel wall surface to be lined so that the second surface of the fixing member, which is a portion to which a stand for installing the fire hydrant device is fixed, is exposed when the reinforcement work is performed; A method for installing a fire hydrant system, comprising the steps of: fixing the stand to the second surface of the fixing member after the reinforcement work is completed; and installing the fire hydrant device on the stand.

10. The method for installing a fire hydrant system according to claim 9, A method for installing a fire hydrant system, characterized in that, when the reinforcement work is carried out, the opening of the monitor's passage is closed so that the second surface of the fixing member is exposed.

11. The method for installing a fire hydrant system according to claim 9, After the fire hydrant device is installed on the stand fixed to the second surface of the fixing member, a water supply pipe provided with a water control valve is branched off from a water distribution main pipe and connected to the fire hydrant device; A method for installing fire hydrant equipment, characterized in that after connecting the water supply piping to the fire hydrant device, a piping storage box for storing the water supply piping is installed on a stand fixed to the second surface side of the fixing member.

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