A vibratory auxiliary device for backfilling and pouring of large-section tunnel invert arch

Abstract

This application relates to an auxiliary device for vibration compaction during backfilling of a large-section tunnel invert arch, comprising: a main support frame; an operating platform disposed on one side of the main support frame, with multiple operating platforms arranged in a stepped manner; and a chute disposed on the other side of the main support frame, the chute having multiple openable and closable chute openings along its length. The auxiliary device of this invention is positioned above the backfill area and can slide along the backfill area, eliminating the need for repeated handling and effectively improving construction efficiency. The stepped operating platform and the chute with multiple chute openings allow for selection of different radii for pouring and vibration compaction according to site requirements, improving the uniformity of concrete paving and construction quality.

Description

Technical Field

[0001] This application relates to the field of tunnel invert arch casting technology, and in particular to an auxiliary device for vibration compaction during backfilling and casting of large-section tunnel invert arches. Background Technology

[0002] Backfilling of the invert arch of large-section tunnels is generally done with plain concrete. Traditional construction methods require setting up an operating platform on the surface of the already poured invert arch and the top of the formwork for vibration compaction, which has the following drawbacks:

[0003] 1) The operating platform needs to be moved frequently during the pouring process, which affects construction efficiency;

[0004] 2) Due to the limited working area in the tunnel construction, the concrete mixer trucks parked above the arch bridge to unload the concrete. Traditional chutes need to be processed in 2-3 different ways according to the pouring radius to meet the on-site requirements, and the operation is extremely inconvenient, which affects the uniformity of concrete paving and construction quality. Utility Model Content

[0005] Therefore, it is necessary to provide an auxiliary device for vibration compaction during backfilling of large-section tunnel arches to overcome the defects mentioned in the background art.

[0006] A vibratory compaction auxiliary device for backfilling and pouring of large-section tunnel invert arches includes:

[0007] Main support frame;

[0008] An operating platform, wherein the operating platform is disposed on one side of the main support frame, and multiple operating platforms are arranged in a stepped manner; and

[0009] A chute is provided on the other side of the main support frame, and the chute has multiple openable and closable chute openings along its length.

[0010] As a preferred embodiment of the auxiliary device for backfilling and pouring the invert arch of a large-section tunnel in this utility model, the bottom of the main support frame is provided with a pulley block, which is arranged at the four corners of the bottom of the main support frame.

[0011] As a preferred embodiment of the auxiliary device for backfilling and pouring of large-section tunnel arches in this utility model, the main support frame is equipped with a guardrail on top, and the guardrail is arranged around the operating platform and the chute.

[0012] As a preferred embodiment of the auxiliary device for backfilling and tamping of large-section tunnel arches in this utility model, the top of the main support frame is also provided with lifting lugs.

[0013] As a preferred embodiment of the auxiliary device for backfilling and pouring the invert arch of a large-section tunnel in this utility model, the operating platform is inclined to the main support frame.

[0014] As a preferred embodiment of the auxiliary device for vibration compaction during backfilling and pouring of the invert arch of a large-section tunnel in this utility model, the chute opening is provided with a cover plate.

[0015] The beneficial effects of this utility model are:

[0016] In this utility model

[0017] The auxiliary device in this invention is set above the backfill area and can slide along the backfill area, eliminating the need for repeated handling and effectively improving construction efficiency. The stepped operating platform and the chute with multiple chute openings can be selected with different radii for pouring and vibration according to site requirements, improving the uniformity of concrete paving and construction quality. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the auxiliary device according to an embodiment of this application;

[0020] Figure 2 This is a side view of the auxiliary device according to an embodiment of this application;

[0021] Figure 3 This is a top view of the auxiliary device according to an embodiment of this application;

[0022] Figure 4 This is a front view of the auxiliary device according to an embodiment of this application;

[0023] Explanation of reference numerals in the attached figures:

[0024] 1000. Main support frame; 1100. Pulley block; 1200. Guardrail; 1300. Lifting lugs;

[0025] 2000, Operating Platform;

[0026] 3000, chute; 3100, cover plate. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] According to one aspect of this application, this application provides an auxiliary device for vibration compaction during backfilling and casting of large-section tunnel invert arches, please refer to it as well. Figures 1 to 4 The auxiliary device includes a main support frame 1000, an operating platform 2000 and a chute 3000. The operating platform 2000 is located on one side of the main support frame 1000, and multiple operating platforms 2000 are arranged in a stepped manner. The chute 3000 is located on the other side of the main support frame 1000, and the chute 3000 has multiple openable and closable chute openings along its length.

[0034] In this embodiment, the main support frame 1000 is mounted above the pouring area via a slide rail and is arranged parallel to the width direction of the pouring area. The operating platform 2000 is located on one side of the main support frame 1000 and extends along its length. Multiple operating platforms 2000 are arranged in a stepped manner to provide a foothold for vibration. The chute 3000 is located on the other side of the main support frame 1000 and extends along its length. The chute 3000 has multiple openable and closable chute openings along its length for transporting concrete. During pouring, different chute openings are selected according to different radius requirements, and different operating platforms 2000 are selected accordingly to facilitate vibration operations.

[0035] In one embodiment, a pulley block 1100 is provided at the bottom of the main support frame 1000. The pulley block 1100 is arranged at the four corners of the bottom of the main support frame 1000. The main support frame 1000 is slidably connected to the slide rail arranged in the pouring area through the pulley block 1100. When it is necessary to fix the main support frame 1000, anti-slip wedges can be installed on both sides of the pulley block 1100 to prevent the auxiliary device from slipping due to external force. The pulley block 1100 is inclined to the main support frame 1000, so that the main support frame 1000 is in an inclined state and the operating platform 2000 is in a horizontal state.

[0036] In one embodiment, a guardrail 1200 is provided on the top of the main support frame 1000. The guardrail 1200 is arranged around the operating platform 2000 and the chute 3000. The guardrail 1200 is used to prevent construction workers from falling from the operating platform 1200 and causing safety accidents. A guardrail gate is also provided on one side of the guardrail 1200 to facilitate the entry and exit of construction workers.

[0037] In one embodiment, the top of the main support frame 1000 is also provided with lifting lugs 1300, which are located at the four corners of the top of the main support frame 1000 to facilitate the lifting of auxiliary devices.

[0038] In one embodiment, the operating platform 2000 is inclined to the main support frame 1000. When in use, the main support frame 1000 is inclined to the horizontal plane to facilitate the transportation of concrete in the chute 3000. The operating platform 2000 is inclined to the main support frame 1000 and is in a horizontal state to facilitate the construction personnel to stand and vibrate.

[0039] In one embodiment, the chute opening is provided with a cover plate 3100. In use, the cover plate 3100 of one of the chute openings is opened according to different radius requirements, while the other cover plates 3100 remain closed. Concrete flows out from the opened chute opening, realizing the pouring of different radii.

[0040] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A vibratory compaction auxiliary device for backfilling and pouring of large-section tunnel invert arches, characterized in that, include: Main support frame; An operating platform is located on one side of the main support frame, and multiple operating platforms are arranged in a stepped manner. as well as A chute is provided on the other side of the main support frame, and the chute has multiple openable and closable chute openings along its length.

2. The auxiliary device for vibration compaction during backfilling and casting of large-section tunnel invert arches according to claim 1, characterized in that, The bottom of the main support frame is equipped with a pulley system, which is located at the four corners of the bottom of the main support frame.

3. The auxiliary device for vibration compaction during backfilling and casting of large-section tunnel invert arches according to claim 2, characterized in that, The main support frame is equipped with a guardrail at the top, which surrounds the operating platform and the chute.

4. The auxiliary device for vibration compaction during backfilling and casting of large-section tunnel invert arches according to claim 3, characterized in that, The main support frame is also equipped with lifting lugs at the top.

5. The auxiliary device for vibration compaction during backfilling and casting of large-section tunnel invert arches according to claim 1, characterized in that, The operating platform is tilted relative to the main support frame.

6. The auxiliary device for vibration compaction during backfilling and casting of large-section tunnel invert arches according to claim 1, characterized in that, The chute opening is equipped with a cover plate.

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