A backfill pavement maintenance device arranged on a hydraulic inverted arch trestle

Abstract

The utility model provides a kind of backfill pavement maintenance device being arranged on hydraulic inverted arch trestle, it is related to tunnel construction equipment technical field, mainly for solving the problem of difficult maintenance of backfill pavement.This backfill pavement maintenance device is mainly composed of water tank, water pump and nozzle, wherein water tank and nozzle are installed on main bridge, for spraying water mist to backfill pavement.This backfill pavement maintenance device sprays evenly, and water temperature, spraying time, interval time and water quantity can be adjusted according to maintenance process, which ensures the maintenance quality of backfill pavement.The utility model retains a main bridge as the escape channel of construction personnel, sets water tank in another main bridge, not only saves a lot of space, but also does not hinder the normal work of lining trolley.The utility model sets backfill pavement maintenance device on hydraulic inverted arch trestle, carries out early maintenance to backfill pavement in rear section while lining front section inverted arch, to ensure that maintenance trolley can be in time construction.

Description

Technical Field

[0001] This utility model is specifically a backfill road surface maintenance device installed on a hydraulic arch trestle, which relates to the field of tunnel construction equipment technology. Background Technology

[0002] During tunnel construction, curing trolleys are typically used to cure the concrete in the lining section. However, these trolleys are not suitable for curing the entire lining section because it includes the backfilled pavement, the arch waist, and the arch crown, and the newly backfilled pavement cannot support the weight of the curing trolley. Therefore, currently, the curing of the entire lining section can only be done by manually spraying water with hoses. This method is not only difficult to operate, but also makes it hard to guarantee the quality of concrete curing.

[0003] A lining trolley is a large mechanical device used for full-section tunnel lining. It mainly consists of a beam frame, a hydraulic inverted arch trestle, and a traction device. (See attached diagram) Figure 1 The existing hydraulic inverted arch trestle bridge 1 mainly consists of two main bridges 11, each over 30 meters long, and multiple crossbeams 12 connecting the two main bridges 11. The main bridges 11 serve two functions: first, to bear the load as a trestle bridge; and second, to serve as an escape route for construction workers in the event of a collapse. Since the lining is constructed in sections, it is advisable to consider pre-curing the backfilled road surface section while lining the first section of the inverted arch, ensuring that the curing trolley can be deployed in a timely manner. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model discloses a backfill road surface maintenance device installed on a hydraulic arch trestle bridge, adopting the following technical solution:

[0005] A backfill road maintenance device is installed on a hydraulic arch bridge, which is mainly composed of two main bridges. The backfill road maintenance device includes a water tank, a water pump, and nozzles. The water tank is located inside one of the main bridges, and the nozzles are installed on the main bridges for spraying water mist onto the backfill road surface.

[0006] Further improvements to the technical solution: An electric heating rod and a water temperature sensor are installed inside the water tank.

[0007] Further improvement of the technical solution: The water pump is installed in the space between the two main bridges.

[0008] Further improve the technical solution: Four rows of nozzles are set along the length of the main bridge, with two rows of nozzles set on the outer side of the two main bridges and two rows of nozzles set on the inner side of the two main bridges.

[0009] Further improve the technical solution: each row of nozzles is evenly distributed within a 12-meter length of the main bridge.

[0010] Further improvement of the technical solution: The nozzle has a ball head and ball socket structure that can rotate in all directions.

[0011] After implementing the above technical solution, the beneficial effects of this utility model compared to the prior art are:

[0012] This invention retains one main bridge as an escape route for construction workers and places the water tank inside another main bridge, which not only saves a lot of space but also does not hinder the normal operation of the lining trolley.

[0013] The backfill road maintenance device of this utility model sprays evenly, and the water temperature, spraying time, interval time and spray volume can be adjusted according to the maintenance process, so as to ensure the maintenance quality of the backfill road.

[0014] This utility model sets up a backfill road surface maintenance device on a hydraulic arch trestle, which can perform pre-maintenance on the backfill road surface while lining the front section of the arch, ensuring that the maintenance trolley can enter the site for construction in a timely manner. Attached Figure Description

[0015] Appendix Figure 1 The diagram shown is a structural schematic of an existing hydraulic inverted arch trestle bridge.

[0016] Appendix Figure 2 The diagram shown is a schematic of the installation structure of this backfill road maintenance device on a hydraulic arch trestle.

[0017] Appendix Figure 3 The attached image shows the attached image. Figure 2 A magnified view of a portion of point P in the middle.

[0018] Appendix Figure 4 The diagram shown is a schematic diagram of the operation of this backfill road maintenance device.

[0019] Appendix Figure 5 The attached image shows the attached image. Figure 4 Cross-sectional view.

[0020] Appendix Figure 6 The diagram shown illustrates the forward movement of a hydraulically operated inverted arch trestle.

[0021] In the attached diagram: 1. Hydraulic inverted arch trestle; 1.1. Main bridge; 1.2. Crossbeam; 1.3. Partition; 2. Water tank; 3. Electric heating rod; 4. Water temperature sensor; 5. Water pump; 6. Nozzle; 7. Water inlet; 8. Backfill road surface; 9. Inverted arch construction area. Detailed Implementation

[0022] The preferred embodiments of this utility model are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of this utility model and are not intended to limit the scope of protection of this utility model. It should be noted that in the description of this utility model, terms such as "front," "rear," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element must have a specific orientation and positional relationship, and therefore should not be construed as a limitation of this utility model. It should also be noted that in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] A backfill pavement maintenance device installed on a hydraulic inverted arch trestle bridge, relating to the field of tunnel construction equipment technology, is mainly used to solve the problem of difficult maintenance of backfill pavements in the existing technology. The composition and maintenance process of this backfill pavement maintenance device are described in detail below.

[0024] See attached document Figure 2 The existing lining trolley features a hydraulic inverted arch trestle 1. This trestle 1 mainly consists of two 36-meter-long main bridges 1.1 and multiple crossbeams 1.2 connecting the two main bridges 1.1. The main bridges 1.1 serve two functions: firstly, to bear the load as a trestle, and secondly, to act as an escape route for construction workers in the event of a collapse. To address the maintenance of the backfilled pavement, a backfilled pavement maintenance device is installed on the hydraulic inverted arch trestle 1. This device mainly consists of a water tank 2, a water pump 5, and nozzles 6. The water tank 2 is located inside one of the main bridges 1.1, and the nozzles 6 are installed on the main bridge 1.1 to spray water mist onto the backfilled pavement.

[0025] In this embodiment, a large-capacity water tank 2 is formed within the main bridge 1.1 by welding two partition plates 1.3 into the internal space of the main bridge 1.1. A water inlet 7 and a level ball valve (not shown in the figure) are installed at the top of the water tank 2. To regulate the water temperature, a 12KW electric heating rod 3 and a water temperature sensor 4 are installed on the water tank 2. Concrete curing requires a large amount of water, necessitating a large-capacity water tank 2. If the water tank 2 were placed in another location, it would affect the normal operation of the lining trolley. This invention retains one main bridge 1.1 as an escape route for construction personnel, and places the water tank 2 within the other main bridge 1.1, saving significant space and not hindering the normal operation of the lining trolley. Furthermore, a water pump 5 is installed in the space between the two main bridges 1.1. The inlet pipe of the water pump 5 is connected to the water tank 2, and the outlet pipe is connected to each nozzle 6, providing high-pressure water to the nozzles 6.

[0026] To evenly spray water mist onto the backfill road surface 8, four rows of nozzles 6 are arranged along the length of the main bridge 1.1. Two rows of nozzles 6 are located on the outer side of the two main bridge sections 1.1, and two rows of nozzles 6 are located on the inner side of the two main bridge sections 1.1. In this embodiment, each row has 18 nozzles 6, and the 18 nozzles 6 are evenly distributed within a 12-meter length of the main bridge 1.1.

[0027] See attached document Figure 3 To facilitate adjustment of the spray angle of nozzle 6, nozzle 6 has a spherical head and ball-and-socket structure that can rotate in all directions.

[0028] Maintenance process:

[0029] See attached document Figure 4 and attached Figure 5 The beam frame and hydraulic invert arch trestle 1 in the lining trolley move forward alternately during lining construction. Lining templates are set on the beam frame. The full-section lining is constructed in segments, each segment being 12 meters long. Specifically, the backfill road surface 8 and the invert arch construction area 9 are both 12 meters long, and they are constructed simultaneously. After construction, during the concrete hardening process, the four rows of nozzles 6 on the hydraulic invert arch trestle 1 are aimed at the backfill road surface 8, and the concrete of the backfill road surface 8 is sprayed for curing according to the curing process. Curing can be performed in both manual and automatic modes. In automatic mode, the spraying time, interval, and water temperature can be adjusted as needed.

[0030] See attached document Figure 6 After the concrete hardens, the hydraulic inverted arch trestle 1 and the formwork move forward 12 meters. At this time, backfilling is carried out in the original inverted arch construction area 9, and inverted arch construction is carried out in the area 12 meters ahead. At this time, the four rows of nozzles 6 on the hydraulic inverted arch trestle 1 are aimed at the new backfill road surface 8 and sprayed to cure the new backfill road surface 8.

[0031] Repeat the above steps.

[0032] It is worth noting that the content not described in detail in the above embodiments is prior art. It is also worth noting that any additions, subtractions, substitutions, and improvements made by those skilled in the art based on the structure and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A backfill road surface maintenance device installed on a hydraulic arch trestle bridge, the hydraulic arch trestle bridge mainly consisting of two main bridge sections, the backfill road surface maintenance device comprising a water tank, a water pump, and nozzles, characterized in that: The water tank is located inside one of the main bridge sections, and nozzles are installed on the main bridge section to spray water mist onto the backfilled road surface.

2. The backfill road surface maintenance device installed on a hydraulic arch trestle as described in claim 1, characterized in that: An electric heating rod and a water temperature sensor are installed inside the water tank.

3. The backfill road surface maintenance device installed on a hydraulic arch trestle as described in claim 1, characterized in that: The water pump is located in the space between the two main bridges.

4. The backfill road surface maintenance device installed on a hydraulic arch trestle as described in claim 1, characterized in that: Four rows of nozzles are installed along the length of the main bridge, with two rows of nozzles located on the outer side of the two main bridge sections and two rows of nozzles located on the inner side of the two main bridge sections.

5. A backfill road surface maintenance device installed on a hydraulic arch trestle as described in claim 4, characterized in that: Each row of nozzles is evenly distributed within a 12-meter length of the main bridge.

6. The backfill road surface maintenance device installed on a hydraulic arch trestle as described in claim 1, characterized in that: The nozzle has a ball-head and ball-socket structure that can rotate in all directions.

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