Non-stop in-situ reinforcing structure for rail transit and construction method

Abstract

The application provides a non-stop in-situ reinforcing structure and construction method for rail transit, two reinforcing members correspond to two tracks on the two sides of the rail and are connected to the tracks in a detachable manner; a retaining wall is located on the two sides of the area to be constructed and is formed by grouting through a grouting pipe extending from top to bottom; a support member is located in a pre-excavated channel on the inner side of the retaining wall, two support members correspond to the two tracks of the rail, a support piece is arranged on the upper end of the support member, the support piece penetrates through the soil layer upward and is connected to a horizontal plate corresponding to the rail, and a U-shaped clamping piece is clamped on the two sides of the reinforcing member and the rail upward and is detachably fixed to the horizontal plate. Through the arrangement of the reinforcing member, the retaining wall, the support member and the U-shaped clamping piece and other structures, a complete reinforcing system is formed, the stability and the bearing capacity of the track can be effectively enhanced, the whole reinforcing structure can better adapt to the load change of the track, and displacement, deformation or sinking of the track in the construction process is prevented.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of track traffic reinforcement, and particularly relates to a non-stop in-situ reinforcement structure for track traffic and a construction method. BACKGROUND

[0002] There are many situations of new roads and culvert crossing existing track traffic lines in the process of road planning and construction. When a newly built road is constructed to an existing railway, a culvert is generally needed to form a three-dimensional traffic, and a track lifting method or a steel temporary beam method needs to be adopted to overhead reinforce the existing track during the construction process. At present, the relatively mature construction method is generally jacking construction, but jacking construction generally needs large equipment assistance, which is difficult to apply in rural areas or small roads, and the traditional reinforcement construction method often needs to stop the track traffic line, which not only brings great inconvenience to passengers' travel, but also greatly disturbs the culvert construction.

[0003] Therefore, it is necessary to provide an improved technical solution for the above-mentioned deficiencies of the prior art. SUMMARY

[0004] The present application aims to overcome the deficiencies in the prior art, and provides a non-stop in-situ reinforcement structure for track traffic and a construction method.

[0005] In order to achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] A non-stop in-situ reinforcement structure for track traffic, comprising:

[0007] Reinforcing members, two of which correspond to the tracks on both sides of the rails and connect the tracks in a detachable manner;

[0008] Retaining walls, which are located on both sides of the construction area and are formed by grouting through self-extending grouting pipes;

[0009] Supporting members, which are located in the pre-excavated channels on the inner side of the retaining walls, two of which correspond to the two tracks of the rails, and the upper end of the supporting member is provided with a support member, which is connected to the corresponding rail plate through the soil layer;

[0010] U-shaped clamping members, which are clamped on both sides of the reinforcing members and the rails upward, and are detachably fixed with the rail plate at the bottom of the U-shaped clamping member.

[0011] Preferably, a concrete wall is arranged on the inner side of the retaining wall, and the concrete wall and the retaining wall are integrally formed by pouring and solidification.

[0012] Preferably, a pulling groove is arranged on the inner side of the retaining wall, the pulling groove is arranged in a grid on the inner side of the retaining wall, and the bottom of the pulling groove extends to the grouting pipe.

[0013] A connecting rib corresponding to the pulling groove is arranged on the outer side of the reinforcing cage of the concrete wall, the connecting rib extends along the corresponding pulling groove, and is fixedly connected with the grouting pipe.

[0014] Preferably, the support member comprises a main rod and a top rod, the side wall of the retaining wall is provided with a mounting groove corresponding to the main rod, the bottom of the mounting groove is provided with an inclined slope, the lower end of the main rod is provided with a bending corresponding to the inclined slope, the top rod is connected with the main rod through a hinged rod, the lower end of the top rod is slidingly assembled at the bending of the main rod, and the support member is supported at the upper end of the top rod.

[0015] A support rod is arranged, one end of the support rod is supported on the inner wall of the pre-excavated channel, and the other end of the support rod abuts against the inner side of the top rod.

[0016] In response to the support rod pushing the top rod towards the main rod, the top rod slides along the bending of the main rod and applies a prestress to the support member upwards.

[0017] Preferably, the support member is correspondingly connected with a formwork corresponding to the concrete wall, and the reinforcing joint of the reinforcing cage of the concrete wall extends out of the formwork.

[0018] Preferably, the main rod is a channel steel with an opening facing the top rod.

[0019] Preferably, the top of the two support members is provided with a cross beam corresponding to the roof of the pre-excavated channel.

[0020] A construction method of an in-situ reinforcing structure for rail transit without stopping operation, comprising the following steps:

[0021] Two reinforcing members are connected on the rails on both sides of the rails;

[0022] Grouting pipes are arranged on both sides of the area to be constructed in the form of grouting, a retaining wall is formed by grouting, and the grouting range is matched with the height of the support member;

[0023] A pre-excavated channel is constructed on the inner side of the retaining wall, and a support member is installed in the pre-excavated channel, the two support members correspond to the two rails of the rails respectively;

[0024] A support member is installed by opening a hole below the rail, and the support member is supported on the upper end of the support member, and the upper end of the support member is provided with a cross plate corresponding to the rail;

[0025] A U-shaped clamping member is clamped on both sides of the reinforcing member and the rail upwards, and is fixedly connected with the cross plate.

[0026] Preferably, installation grooves are arranged at both ends of the retaining wall corresponding to the positions of the two tracks, and an inclined slope is reserved at the bottom of the installation grooves; after the main rod and the top rod are installed, the top rod is pushed towards the main rod through the support rod, so that the top rod slides along the bending of the main rod and exerts a prestress on the support member upwards.

[0027] Preferably, a pulling groove is arranged on the inner side of the retaining wall; after the connecting bars outside the reinforcing cage of the concrete wall are fixedly connected with the grouting pipe and the formwork is installed, the concrete wall is formed by pouring.

[0028] The reinforcing cage of the concrete wall is provided with reinforcing joints extending out of the formwork above and below; after the concrete wall reaches the preset strength, the support rod is removed and the construction area is completely excavated; the top plate and the bottom plate reinforcing bars are arranged above and below the construction area, respectively, and the top plate reinforcing bar and the bottom plate reinforcing bar are connected with the corresponding reinforcing joints, respectively, so as to be integrated with the concrete wall by pouring, and the culvert is formed after the reinforcing member and the U-shaped clamping member are removed.

[0029] Beneficial effects: The in-situ reinforcement construction can be carried out without stopping the operation of the track traffic, so that economic losses and passenger inconvenience caused by stopping the operation are avoided. Through the arrangement of the reinforcing member, the retaining wall, the support member and the U-shaped clamping member and other structures, a complete reinforcement system is formed, which can effectively enhance the stability and bearing capacity of the track, so that the entire reinforcement structure better adapts to the load change of the track and prevents displacement, deformation or subsidence of the track during the construction process. BRIEF DESCRIPTION OF DRAWINGS

[0030] The drawings accompanying the specification of this application form a part hereof, serve to provide further understanding of the application, and together with the description of the preferred embodiments explain the application, and do not limit the application. Among them:

[0031] Figure 1 The retaining wall construction schematic diagram in the specific embodiment provided by the application;

[0032] Figure 2 The installation schematic diagram of the support member in the specific embodiment provided by the application;

[0033] Figure 3 The pouring schematic diagram of the concrete wall in the specific embodiment provided by the application;

[0034] Figure 4 The culvert pouring schematic diagram in the specific embodiment provided by the application.

[0035] In the drawings: 1, track; 2, retaining wall; 3, grouting pipe; 4, main rod; 5, top rod; 6, support rod; 7, hinged rod; 8, support member; 9, U-shaped clamping member; 10, horizontal plate; 11, concrete wall; 12, reinforcing joint; 13, culvert; 14, reinforcing member. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0037] In the description of the present application, the orientations or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application, and are not required to be the specific orientations and operations of the present application, and therefore cannot be understood as limitations on the present application. The terms "connected", "connected" used in the present application should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection; can be directly connected, can also be indirectly connected through intermediate components, and those skilled in the art can understand the specific meanings of the above terms according to specific circumstances.

[0038] The present application will be described in detail below with reference to the drawings and in combination with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0039] As shown in Figures 1-4 A non-stop operation in-situ reinforcing structure for rail transit includes a U-shaped clamp 9, a support member 、 a retaining wall 2 and a reinforcing member 14, wherein two reinforcing members 14 correspond to the tracks 1 on both sides of the rails respectively, the reinforcing member 14 is an I-beam extending side by side with the rails, the reinforcing member 14 is located outside the track 1 and is connected in a detachable manner by bolts to fix the track 1, further, the length of the reinforcing member 14 is adapted to the length of the area to be constructed, a plurality of cross arms are arranged on the reinforcing member 14 corresponding to the area to be constructed, the cross arms pass through the track 1 from below, and are uniformly distributed about the length direction of the reinforcing member 14, and the cross arms are fixed to the reinforcing member 14 by bolts.

[0040] The retaining wall 2 is used to provide initial support to the track 1, specifically, the retaining wall 2 is located on both sides of the area to be constructed, and the retaining wall 2 is formed by grouting through a grouting pipe extending from top to bottom. The grouting pipe is a metal pipe, the lower end of which extends below the lower edge elevation of the culvert, and the grouting pipe is provided with grouting holes corresponding to the part below the upper edge elevation of the culvert, so that the retaining wall 2 is formed on the bottom foundation of the track 1 by grouting, which can support the track 1 on one hand, and avoid the intrusion of soil pressure on both sides of the culvert during excavation on the other hand, thereby ensuring the stability of the bottom foundation of the track 1.

[0041] After the grouting concrete reaches the preset strength, the pre-excavation channel is excavated, the pre-excavation channel is excavated by three steps or two steps, the width can meet the material transportation of workers or enter the pre-excavation channel to install the steel reinforcement and support member, which is generally 1-1.5m, the support member is spliced by channel steel and installed in the form of assembly, so as to reduce the use of space and minimize the width of the pre-excavation channel, the support member is located in the pre-excavation channel inside the retaining wall 2, two support members correspond to two tracks 1 of the rail respectively, the upper end of the support member 8 is provided with a support piece 8, which can be a steel pipe, the support piece 8 passes through the soil layer upward and is connected with the corresponding rail horizontal plate 10, the lower part of the horizontal plate 10 is provided with a sleeve connected with the support piece 8 through threads, the upper end of the sleeve is rotatably connected with the horizontal plate 10, a groove corresponding to the horizontal plate 10 and the U-shaped clamping piece 9 is excavated below the track 1, the corresponding perforation of the support piece 8 can be punched from bottom to top, the perforation extends to the excavated groove, and the U-shaped clamping piece 9 is clamped on the two sides of the reinforcing member 14 and the rail upward, and the U-shaped clamping piece 9 is detachably fixed with the horizontal plate 10 through bolts.

[0042] In the embodiment, the grouting hole density of the grouting pipe away from the culvert side is greater than that of the grouting hole density close to the culvert side, so as to ensure that the retaining wall 2 extends outward for a long distance, and the plurality of grouting pipes are distributed transversely to form a continuous retaining wall 2 by grouting.

[0043] In an optional embodiment, a concrete wall 11 is arranged inside the retaining wall 2, which can enhance the support capacity during excavation and serve as a side wall of the culvert, and the concrete wall 11 is integrated with the retaining wall 2 by pouring.

[0044] In the embodiment, a pull groove is arranged inside the retaining wall 2 in the pre-excavation channel, the pull groove has a width matched with the grouting pipe, the pull grooves are distributed in a grid shape inside the retaining wall 2, the pull groove bottom extends to the grouting pipe for connecting the steel reinforcement, the steel reinforcement body is a cuboid matched with the concrete wall 11, a connecting rib corresponding to the pull groove is arranged outside the steel reinforcement of the concrete wall 11, the connecting ribs are arranged in a grid shape corresponding to the pull grooves, the connecting rib extends along the corresponding pull groove and is fixedly connected with the grouting pipe through welding, so as to be integrated with the retaining wall 2 after pouring.

[0045] In an optional embodiment, the support member comprises a main rod 4 and a top rod 5, the side wall of the retaining wall 2 is provided with a mounting groove corresponding to the main rod 4, the width of the mounting groove is matched with the width of the main rod 4, the depth of the mounting groove can extend to the grouting pipe, and the two can be welded and fixed. An inclined slope is arranged at the bottom of the mounting groove, the upper end of the inclined slope is located below the upper surface of the lower wall of the culvert, the lower surface of the inclined slope extends to the lower surface of the lower wall of the culvert, and the lower end of the main rod 4 is provided with a bend corresponding to the inclined slope, so that the main rod 4 can be clamped in the mounting groove. The top rod 5 is connected to the main rod 4 through a hinged rod 7, one end of the hinged rod 7 close to the top rod 5 is inclined upward, so that the top rod 5 can be displaced upward under the push. The slope of the bend is matched with the displacement track of the lower end of the top rod 5, the hinged rod 7 can be one or two, the main rod 4 and the top rod 5 are parallel through the hinge, the lower end of the top rod 5 is slidingly assembled at the bend of the main rod 4, and a support member 8 is arranged at the upper end of the top rod 5; one end of a support rod 6 is supported on the inner wall of the pre-excavated channel, a supporting plate corresponding to the support rod 6 is arranged in the pre-excavated channel, and the other end of the support rod 6 abuts against the inner side of the top rod 5.

[0046] In actual construction, two support members correspond to two rails 1, the support member is installed first, and then the slot and the steel reinforcement framework are bound, the support rod 6 comprises a stud and a sleeve, the two ends of the stud are connected to the sleeve through reverse threads, so that the pre-excavated channel and the support top rod 5 can be extended, the support rod 6 pushes the top rod 5 to the main rod 4 under the action of screwing, so that the top rod 5 slides along the bend of the main rod 4, at this time, the prestress can be applied to the support member 8 upward, so as to ensure the stability of the rail 1.

[0047] In the embodiment, the support rod 6 is two, and the two support rods 6 are respectively located at the two ends of the top rod 5, so as not to affect the normal personnel passing and material transportation, the support member is correspondingly connected with a formwork corresponding to the concrete wall, the formwork is located on the inner side of the top rod, the formwork at the corresponding position is fixed to the top rod through bolts, the formwork can be a wooden formwork or a steel formwork, and the formwork is installed after the steel reinforcement framework is bound. The formwork of the concrete wall 11 is formed by splicing, end forms are arranged on the two sides corresponding to the rail, the formwork is not limited too much here, the formwork is supported by square timbers with the installation of the formwork, the steel reinforcement joints 12 extending out of the formwork are arranged above and below the steel reinforcement framework of the concrete wall 11, the thickness of the steel reinforcement joints 12 and the culvert top plate or bottom plate and the width of the two sides of the rail are matched, so that the culvert top plate and the bottom plate are integrated with the concrete wall 11.

[0048] The main rod 4 is a channel steel with an opening facing the top rod 5, and the top rod 5 is a square steel corresponding to the channel steel, the bottom of the main rod 4 can be provided with a support beam corresponding to the bottom of the pre-excavated channel, so as to ensure the stability, in the embodiment, the upper surface of the culvert bottom plate is 10-20 cm above the bend.

[0049] The top of the two support members is provided with a cross beam corresponding to the top plate of the pre-excavated channel, the cross beam is connected to the top plate through bolts or welding at both ends, a plurality of longitudinal screw rods are arranged on the cross beam, a supporting plate is arranged at the upper end of the screw rod, and the pre-excavated channel top plate is supported in this way.

[0050] For the above reinforcing structure, the application also provides a construction method of in-situ reinforcing structure for rail transit without stopping operation, so that the concrete culvert is formed in the form of cast-in-place, without the need for large jacking equipment, and has strong anti-interference ability, ensuring the existing line without stopping operation.

[0051] has the following steps:

[0052] The measurement and layout are carried out, the contour lines of the pouring pipe, the pre-excavated channel, the cross arm and the culvert are drawn by lime, the two reinforcing members 14 are hoisted into position by a crane, the reinforcing members 14 are connected to the rail 1 on both sides of the rail by bolts, then the corresponding insertion slot of the cross arm is excavated, and the cross arm and the reinforcing member 14 are fixed after the cross arm is in place.

[0053] The grouting pipe is installed by electric hammer or punching, the number of grouting holes on both sides of the grouting pipe is different (first, a plurality of grouting holes are uniformly punched on the outside of the grouting pipe in the form of a plum blossom, and then a plurality of grouting holes are uniformly punched on one of the normal lines of the grouting pipe, so that the grouting hole density on both sides is different), the side with more grouting holes is directed away from the culvert, the grouting pipe is punched on both sides of the construction area by grouting, and the plurality of grouting pipes are uniformly distributed in the width direction of the rail, so that the grouting ranges of the adjacent two grouting pipes intersect each other, the retaining wall 2 is formed by grouting, and the grouting range is matched with the height of the support member.

[0054] The pre-excavated channel is constructed inside the retaining wall 2, the pre-excavated channel is excavated by the three-step or two-step method according to the soil layer working condition, the support member is installed in the pre-excavated channel, the two support members correspond to the two rails 1 respectively, the support member 8 is installed through the hole below the rail 1, the groove corresponding to the upper end of the support member 8 is arranged below the rail 1, which is used for installing the horizontal plate 10 and the U-shaped clamping piece 9, the support member 8 is threadedly connected with the screw sleeve below the horizontal plate 10, the width of the horizontal plate 10 is matched with the width of the U-shaped clamping piece 9, the U-shaped clamping piece 9 is upwardly clamped on the reinforcing member 14 and the two sides of the rail, and the lower end of the support member 8 is supported on the upper end of the support member.

[0055] In an optional embodiment, the support member installation can be performed after the pre-dug channel is dug to the position of the support member, specifically, installation slots are set at the positions corresponding to the two tracks 1 at both ends of the retaining wall 2, the installation slots are provided with inclined slopes at the bottom, the main rod 4 is first installed into the installation slot, the support rod 6 and the U-shaped clamping piece 9 are installed after the main rod 4 and the top rod 5 are installed, the support member 8 is tightly pressed against the top rod 5 by rotating the sleeve under the horizontal plate 10 after the U-shaped clamping piece 9 is installed, and then the top rod 5 is pushed to the main rod 4 through the support rod 6, so that the top rod 5 slides along the bending of the main rod 4 and exerts a pre-stress on the support member 8 upward.

[0056] In the embodiment, the pull grooves are arranged inside the retaining wall 2, the pull grooves are arranged after the support member is constructed, the pull grooves are formed in a grid shape through horizontal grooves and vertical grooves, the number of the vertical grooves is matched with the number of the grouting pipes, the horizontal grooves can be 2-5 uniformly distributed along the vertical direction, and the specific number is not limited.

[0057] After the connecting bars outside the reinforcing cage of the concrete wall 11 are welded and fixedly connected with the grouting pipes, the formwork is installed, the formwork is provided with pouring holes, the concrete wall 11 is formed through pouring, the main body of the culvert is excavated after the concrete wall 11 reaches the preset strength, the main body of the culvert is excavated by the three-step method, the reinforcing joints 12 of the formwork are arranged above and below the reinforcing cage of the concrete wall 11, the reinforcing joints 12 are used for connecting the reinforcing bars of the top plate and the bottom plate of the culvert, after the concrete wall 11 reaches the preset strength, the support rod 6 is removed, the construction area (the main body of the culvert) is completely excavated, the reinforcing bars of the top plate and the bottom plate are arranged above and below the construction area respectively, the formwork of the corresponding top plate and bottom plate is arranged by arranging full-frame supports, the reinforcing bars of the top plate and the bottom plate are connected with the corresponding reinforcing joints 12 respectively, so as to be integrated with the concrete wall 11 through pouring, the culvert 13 is formed after the concrete is solidified, and then the reinforcing member 14 and the U-shaped clamping piece 9 are removed.

[0058] The above only describes the preferred embodiments of the present application and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application is within the protection scope of the claims of the present application.

Claims

1. A non-stop in-situ reinforcement structure for rail transit, characterized in that, It comprises: Reinforcing members, two of which correspond to the two sides of the rail track and are connected to the track in a detachable manner; Retaining walls, which are formed by grouting through grouting pipes extending from top to bottom on both sides of the area to be constructed; Supporting members, which are located in the pre-excavated channels inside the retaining walls, two of which correspond to the two tracks of the rail track, and the upper end of each supporting member is provided with a support member connected to the corresponding rail track through a horizontal plate passing through the soil layer upward; U-shaped clamping members, which are clamped on both sides of the reinforcing members and the rail track upward, and are fixed to the horizontal plate at the bottom of the U-shaped clamping members; A concrete wall is provided inside the retaining wall, which is integrated with the retaining wall through grouting; A pull slot is provided inside the retaining wall, which is distributed in a grid pattern inside the retaining wall, and the bottom of the pull slot extends to the grouting pipe; A connecting bar corresponding to the pull slot is provided outside the reinforcing bar cage of the concrete wall, which extends along the corresponding pull slot and is fixedly connected to the grouting pipe; The supporting member comprises a main rod and a top rod, the side wall of the retaining wall is provided with a mounting groove corresponding to the main rod, the bottom of the mounting groove is provided with an inclined slope, and the lower end of the main rod is provided with a bending part corresponding to the inclined slope; the top rod is connected to the main rod through a hinge rod, the lower end of the top rod is slidingly assembled in the bending part of the main rod, and the support member is supported on the upper end of the top rod; A support rod is provided, one end of which is supported on the inner wall of the pre-excavated channel, and the other end is in contact with the inside of the top rod; In response to the support rod pushing the top rod towards the main rod, the top rod slides along the bending part of the main rod and applies a pre-stress to the support member upward.

2. The non-stop in situ reinforcing structure for rail transport according to claim 1, characterized in that, The supporting member is provided with a formwork corresponding to the concrete wall, and the reinforcing bar joint of the reinforcing bar cage of the concrete wall extends out of the formwork.

3. The non-stop in situ reinforcement structure for rail transit according to claim 1, characterized in that, The main rod is a channel steel with an opening facing the top rod.

4. The non-stop in situ reinforcement structure for rail transit according to claim 1, characterized in that, The top of the two supporting members is provided with a cross beam corresponding to the top plate of the pre-excavated channel.

5. A construction method of the in-situ reinforcement structure for rail traffic according to any one of claims 1 to 4, wherein the in-situ reinforcement structure for rail traffic according to any one of claims 1 to 4 is constructed, characterized in that, The method comprises the following steps: Two reinforcing members are connected to the tracks on both sides of the rail track; Grouting pipes are set on both sides of the area to be constructed by grouting, and retaining walls are formed by grouting, the grouting range being adapted to the height of the supporting member; A pre-excavated channel is constructed inside the retaining wall, and supporting members are installed in the pre-excavated channel, two of which correspond to the two tracks of the rail track; A hole is opened below the track for supporting member installation, and the supporting member is supported on the upper end of the supporting member, and the upper end of the supporting member is provided with a horizontal plate corresponding to the rail track; The U-shaped clamping members are clamped on both sides of the reinforcing members and the rail track upward, and are fixedly connected to the horizontal plate.

6. The in-situ reinforcement structure construction method for rail transit according to claim 5, wherein Mounting grooves are provided at the positions corresponding to the two tracks at both ends of the retaining wall, and the bottom of the mounting groove is provided with an inclined slope, and after the main rod and the top rod are installed, the top rod is pushed towards the main rod through the support rod, so that the top rod slides along the bending part of the main rod and applies a pre-stress to the support member upward.

7. The method for construction of a non-stop in situ reinforcement structure for rail transport according to claim 6, characterized in that, A pull groove is arranged inside the retaining wall, and a connecting bar outside a reinforcing cage of the concrete wall is fixedly connected with a grouting pipe, and then a formwork is installed, and the concrete wall is formed by pouring; The reinforcing cage of the concrete wall is provided with reinforcing joints extending out of the formwork above and below the reinforcing cage, and after the concrete wall reaches a preset strength, the supporting rods are removed and the construction area is completely excavated, and top plate and bottom plate reinforcements are arranged above and below the construction area respectively, and the top plate and bottom plate reinforcements are connected with the corresponding reinforcing joints respectively, so as to be integrated with the concrete wall by pouring, and the reinforcing members and the U-shaped clamps are removed after the culvert is formed.

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