Tunnel transverse ditch drainage telescopic device with access hole

Abstract

The tunnel transverse ditch drainage telescopic device with the access hole comprises a plurality of box beam assemblies and a crane beam. The box beam assembly comprises a supporting beam and a pair of box bodies, the section of each box body is in a U shape, the two ends of the supporting beam are arranged in the box bodies respectively, and shearing springs fixedly connected with the top walls of the box bodies are arranged at the end tops of the supporting beam. The box girder assemblies are used for being arranged in the width direction of the transverse ditch and are arranged in parallel in the length direction of the transverse ditch. The crane beams are used for being fixedly arranged on the box girder assembly in the length direction of the transverse ditch, and the crane beams are arranged in parallel in the width direction of the transverse ditch. The drainage device can be installed or maintained and replaced according to a lane during use, the structure is safe and reliable, load pressure can be effectively dispersed to a pavement structure layer through the telescopic function of the shear spring in the box body, the drainage device and a pavement are better protected, the pavement around the drainage device is prevented from cracking and damaging, the durability of the drainage device in a tunnel is effectively improved, and the service life of the drainage device is prolonged. The tunnel structure is protected, and the operation and maintenance cost is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel cross ditch drainage telescopic device with a maintenance opening, and belongs to the technical field of cross ditch drainage devices. BACKGROUND

[0002] With the development of economy, in order to alleviate the problem of urban traffic congestion, many cities build urban municipal tunnels or build rapid passage tunnels between cities, and the traffic volume is relatively large, so as to avoid rainwater and waste water outside the tunnel from entering the tunnel, and a cross ditch needs to be arranged on the road, and the width of the cross ditch is more than 500mm.

[0003] According to the previous engineering, the materials of the tunnel cross ditch drainage gratings are various, the quality is uneven, the fixed installation mode is various, but there are problems such as easy deformation of the drainage grating, short service life, easy loosening of the connection between the grating and the road structure, broken surrounding structure, poor effect of secondary maintenance and replacement, and difficult maintenance, which not only affects the comfort of driving, but also has great safety hazards.

[0004] Therefore, it is necessary to develop a sectional type tunnel cross ditch drainage telescopic device with good material, safe structure, supporting displacement system, firm installation, excellent drainage performance, economy, and maintenance opening. SUMMARY

[0005] In order to solve the problems of the prior art, the utility model aims to provide a tunnel cross ditch drainage telescopic device with a maintenance opening.

[0006] In order to achieve the above-mentioned target, the utility model adopts the following technical scheme:

[0007] A tunnel cross ditch drainage telescopic device with a maintenance opening, comprising a plurality of box girder assemblies and a driving beam.

[0008] The box girder assembly comprises a supporting beam and a pair of box bodies, the cross section of the box body is in the shape of "Fang", and the two ends of the supporting beam are respectively arranged in the box bodies, and the end of the supporting beam is provided with a shear spring for fixedly connecting the top plate of the box body.

[0009] The box girder assembly is arranged along the width direction of the cross ditch, and the plurality of box girder assemblies are arranged in parallel along the length direction of the cross ditch.

[0010] The driving beam is fixedly arranged on the box girder assembly along the length direction of the cross ditch, and the plurality of driving beams are arranged in parallel along the width direction of the cross ditch.

[0011] The above-mentioned driving beam comprises a middle beam and a side beam, the middle beam is arranged on the supporting beam, and the side beam is arranged on the top surface of the box body.

[0012] Further, the cross section of the middle beam is in the shape of "Wang", and the cross section of the side beam is in the shape of "Z".

[0013] Further, the gap between the side beams and the middle beams, and between adjacent middle beams, is 40 mm.

[0014] The distance between adjacent support beams is no more than 1.2 meters.

[0015] The box is provided with a pressure bearing support for supporting the support beam.

[0016] Further, the end of the support beam is provided with a sliding plate for low-friction sliding with the pressure bearing support.

[0017] At least one end of the traveling beam is provided with an access hole and an access assembly,

[0018] The access assembly includes an extension section of the support beam, which is provided at the end of the support beam through a hinged shaft.

[0019] Further, the access assembly includes a pair of support members, which are fixed to the end of the telescopic device along the length direction of the cross trench through a clamping plate, and the access plate is connected with the support members through bolts provided at both ends thereof.

[0020] Further, the end of the side beam is provided with an extension section constituting the access hole.

[0021] The utility model has the advantages of:

[0022] The utility model relates to a tunnel cross trench drainage telescopic device, compared with the prior art tunnel cross trench drainage device, has following several aspects of advantages:

[0023] ① It is a sectional drainage telescopic device, can install or maintain replacement according to lane.

[0024] ② A plurality of middle beams are welded and fixed with the support beam one by one, and the structure is safe and reliable.

[0025] ③ There is a support box, and the box is provided with a shear spring, has the telescopic function in the transverse direction, can effectively disperse load pressure to the pavement structure layer, better protects the drainage device and pavement, prevents the pavement around the drainage device from cracking and damaging, effectively improves the durability of the drainage device in the tunnel, and protects the tunnel structure.

[0026] ④ Without setting rubber sealing waterstop, it is convenient and fast to drain.

[0027] ⑤ Set up the access hole, convenient maintenance, facilitate the internal garbage cleaning and maintenance of cross trench in the later period.

[0028] ⑥ Improve the safety of the cross trench drainage device in the city municipal tunnel and the expressway tunnel.

[0029] The service life of the cross-gutter drainage device is prolonged, and the operation and maintenance cost is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 Fig. 1 is a structural schematic view of a tunnel cross-gutter drainage expansion device based on structure one.

[0031] Figure 2 Fig. 2 is a structural schematic view of a tunnel cross-gutter drainage expansion device based on structure two.

[0032] Figure 3 Fig. 3 is a structural schematic view of a box girder assembly.

[0033] Figure 4 Fig. 4 is a side view of a traveling beam.

[0034] Figure 5 Fig. 5 is a structural schematic view of an anchor.

[0035] Figure 6 Fig. 6 is a structural schematic view of a support beam transverse movement.

[0036] The meanings of the marks in the drawings are as follows: 1, box body, 2, middle beam, 3, side beam, 4, extension section, 5, hinged shaft, 6, anchor, 7, support member, 8, cover plate, 9, inspection plate, 10, bolt;

[0037] 11, support beam, 12, shear spring, 13, pressure bearing, 14, stainless steel plate;

[0038] 17, welded part, 18, anchor plate, 19, anchor ring. DETAILED DESCRIPTION

[0039] The utility model will be specifically introduced below in combination with the drawings and specific embodiments.

[0040] A tunnel cross-gutter drainage expansion device is composed of a plurality of box girder assemblies and a traveling beam.

[0041] The box girder assembly is composed of a pair of box bodies 1 and a support beam 11.

[0042] The cross section of the box body 1 is in the shape of “ ”, i.e., the side is open; the end of the support beam 11 is disposed in the box body 1 through the opening of the box body 1. In the box body 1, a pressure bearing 13 is arranged in the box body 1, and the end of the support beam 11 disposed in the box body 1 is disposed on the pressure bearing 13; preferably, a sliding plate, preferably a stainless steel plate 14, can be arranged on the bottom surface of the end of the support beam 11 to reduce the frictional resistance when sliding with the pressure bearing 13.

[0043] The end of the support beam 11 and the top plate of the box body 1 are provided with a fixed shear spring 12.

[0044] Several parallel box girder assemblies are arranged in the width direction in the cross trench, and the distance between adjacent support beams 11 is not greater than 1.2 meters.

[0045] The driving beam is composed of middle beams 2 and side beams 3. The cross section of the middle beam 2 is in the shape of "Wang", and the middle beam 2 is fixed on the support beam 11 along the length direction of the cross trench. Preferably, several welding pieces 17 can be arranged on the support beam 11 for welding and fixing the middle beam 2. Several parallel middle beams 2 are welded on the support beam 11. Preferably, the distance between adjacent middle beams 2 is 40mm. When the middle beams 2 cover the support beam 11, the side beams 3 can be welded on the box 1 on both sides. The cross section of the side beam 3 is in the shape of "Z". Preferably, the distance between the side beam 3 and the adjacent middle beam 2 is 40mm.

[0046] Preferably, the length of the side beam 3 is greater than the length of the middle beam 2, that is, at the end along the length direction of the cross trench, a pair of side beams 3 form an access hole by using the extended section at the end, and a corresponding maintenance assembly is arranged at the access hole.

[0047] Structure one of the maintenance assembly,

[0048] The extended section 4 is arranged at the end of the support beam 11 through the hinge shaft 5. Several extended sections 4 are fixed as a whole through the welding plate. That is, when the access hole needs to be opened, the extended section is flipped up based on the hinge shaft 5.

[0049] Structure two of the maintenance assembly,

[0050] The maintenance assembly is composed of a pair of parallel support members 7 and a maintenance plate 9. The support member 7 is welded and fixed with the extended section of the side beam 3 through the lap plate 8. The maintenance plate 9 is connected with the support member 7 through the bolts 10 arranged at both ends thereof.

[0051] Process steps:

[0052] After the tunnel construction is completed on the surface layer of the asphalt pavement, the process of setting out, cutting, grooving, cleaning, placing the tunnel cross trench drainage expansion device in the cross trench, fixing and welding, installing the formwork and steel bars, and covering the steel mesh, pouring the concrete, curing the concrete, cleaning and opening the traffic are sequentially performed.

[0053] Specifically,

[0054] An anchor 6 can be arranged at the bottom of the side beam 3. The anchor 6 is composed of an anchor plate 18 and an anchor ring 19. The anchor ring 19 is welded at the bottom of the anchor plate 18, and the anchor plate 18 is welded with the side beam 3, the support member 7, and the embedded steel bar or the planting steel bar in the cross trench. Preferably, the distance between adjacent anchor plates 18 is 200mm.

[0055] When the vehicle drives on the support beam, the support beam 11 driven by the upper middle beam 2 slides transversely in the box 1, so that the shear spring 12 inside the box 1 generates transverse shear deformation, constituting the adaptive structure expansion and contraction movement.

[0056] When maintenance and cleaning are needed, only the bolt 10 needs to be removed, and the maintenance plate 9 can be removed, and the inside of the groove can be maintained and cleaned, and the maintenance opening is arranged at the edge of the driving lane on both sides, the frequency of the vehicle driving on the upper part is small, the impact force is low, and the service life is longer.

[0057] The basic principle, main features and advantages of the utility model are shown and described above. The skilled in the art should understand that the above examples do not limit the utility model in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the utility model.

Claims

1. A tunnel cross trench drainage expansion joint with a manhole, characterized in that, The box girder assembly comprises a support beam and a pair of box bodies, the cross section of the box body is in the shape of "Fang", the two ends of the support beam are respectively placed in the box body, and the end top of the support beam is provided with a shear spring for fixing the upper plate of the box body. The box girder assembly is arranged along the width direction of the cross section ditch, and a plurality of box girder assemblies are arranged in parallel along the length direction of the cross section ditch. The driving beam is arranged on the box girder assembly along the length direction of the cross section ditch, and a plurality of driving beams are arranged in parallel along the width direction of the cross section ditch. The driving beam comprises a middle beam and a side beam, the middle beam is arranged on the support beam, and the side beam is arranged on the top surface of the box body.

2. The tunnel cross drainage expansion joint of claim 1, wherein, The cross section of the middle beam is in the shape of "Wang", and the cross section of the side beam is in the shape of "Z".

3. The tunnel cross drainage expansion joint of claim 2, wherein, The gap between the side beam and the middle beam and the adjacent middle beam is 40mm.

4. The tunnel cross drainage expansion joint of claim 2, wherein, The distance between the adjacent support beams is not more than 1.2 meters.

5. The tunnel cross drainage expansion joint of claim 1, wherein, The box body is provided with a pressure bearing support for supporting the support beam.

6. The tunnel cross drainage expansion joint of claim 1, wherein, The end bottom of the support beam is provided with a sliding plate for low friction sliding with the pressure bearing support.

7. The tunnel cross-drain expansion joint of claim 6, wherein, At least one end of the driving beam is provided with an inspection opening and an inspection assembly.

8. The tunnel cross drainage expansion joint of claim 1, wherein, The inspection assembly comprises an extension section of the support beam, and the extension section is arranged at the end of the support beam through a hinge shaft. The inspection assembly comprises a pair of support members, the support members are fixed at the ends of the telescopic device along the length direction of the cross section ditch through a clamping plate, and the inspection plate is connected with the support members through bolts arranged at the two ends thereof.

9. The tunnel cross-drain expansion joint of claim 8, wherein, The end of the side beam is provided with an extension section constituting the inspection opening.

10. The tunnel cross drainage expansion joint of claim 2, wherein, ​

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