Inclined shaft assembly hole arc plate support structure

Abstract

The utility model discloses a kind of inclined shaft assembly hole arc plate support structures, including base, the upper surface outside of base is provided with round hole, the quantity of base is two, and it is symmetrically arranged, the upper surface of base is fixedly connected with right-angle groove column in four corners, the upper surface of push plate is fixedly connected with support rod symmetrically, the upper surface of support rod is fixedly connected with arc plate.This device is applied to the support link of inclined shaft assembly hole, arc plate directly acts on inclined shaft cave wall or crown, the curved surface of arc plate shape and inclined shaft cave wall crown is more matched, contact area is large, stress is uniform, effectively disperses support force, reduces local stress concentration, the support device is through structure reasonable, hydraulic controllable, modularization, strong adaptability, easy to install, maintain and reuse, with excellent engineering applicability and economy.

Description

Technical Field

[0001] This utility model relates to the field of construction technology for inclined shaft assembly tunnels, specifically to an arc-shaped plate support structure for inclined shaft assembly tunnels. Background Technology

[0002] Long tunnels are frequently encountered in engineering construction in fields such as transportation (railways, highways), water conservancy, and hydropower. When the tunnel is deep and long, using inclined shafts can increase the working face and accelerate the construction progress. The inclined shaft assembly tunnel is a key part connecting the inclined shaft and the main tunnel, providing a passage for the inclined shaft construction equipment and materials to enter the main tunnel, meeting the needs of simultaneous construction on multiple working faces in long tunnels. After the tunnel entrance is excavated, timely support construction is carried out to ensure the stability of the entrance and construction safety. The appropriate support method can be selected according to the geological conditions and surrounding rock conditions of the tunnel entrance. Therefore, we propose an arc-shaped plate support structure for the inclined shaft assembly tunnel. Utility Model Content

[0003] The purpose of this utility model is to provide an arc-shaped plate support structure for inclined shaft assembly holes to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a support structure for an arc-shaped plate in an inclined shaft assembly hole, comprising a base, a circular hole on the outer side of the upper surface of the base, two bases arranged symmetrically, right-angled groove columns fixedly connected to the four corners of the upper surface of the base, right-angled grooves on the inner sides of the four right-angled groove columns, and push plates attached to the right-angled grooves, a hydraulic cylinder fixedly connected to the center of the lower surface of the push plate, the bottom of the hydraulic cylinder fixedly connected to the center of the upper surface of the base, support rods symmetrically fixedly connected to the upper surface of the push plate, and arc-shaped plates fixedly connected to the upper surface of the support rods.

[0005] Preferably, an extension plate is fixedly connected to the side wall of the base, and the extension plate is semi-circular in shape. A flow valve can be connected between the inner side walls of the two hydraulic cylinders.

[0006] Preferably, the side wall of the push plate is fixedly connected with three side lifting rings, which are arranged horizontally in sequence.

[0007] Preferably, a rubber support is fixedly connected to the upper surface of the arc-shaped plate, and the rubber support is made of rubber and steel plate laminated and vulcanized.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: This device is applied to the support link of the inclined shaft assembly tunnel. By setting right-angle groove columns and arc-shaped plates, and by setting round holes on the base and using anchor rods to fix it to the foundation or surrounding rock of the inclined shaft assembly tunnel, the basic stability of the entire support device is ensured. Right-angle groove columns are set at the four corners of the base, and the four corners of the push plate fit against the inner side of the right-angle groove columns to form a vertical guide structure, ensuring that the push plate moves smoothly in the vertical direction under the push of the hydraulic cylinder, avoiding deviation or shaking. The hydraulic cylinders can be differentiated according to the support requirements of different areas to adapt to the tunnel wall. In cases of uneven deformation or localized pressure concentration, the use of a flow-coordinated valve allows multiple hydraulic cylinders to advance synchronously, ensuring balanced force on the push plate and each support point, preventing structural instability caused by excessive localized stress. An arc-shaped plate is connected above the push plate via a support rod, which directly acts on the inclined shaft wall or roof arch. The shape of the arc-shaped plate better matches the curved surface of the inclined shaft wall and roof arch, resulting in a large contact area, uniform force distribution, effective dispersion of support force, and reduction of localized stress concentration. This support device is structurally sound, hydraulically controllable, modular, highly adaptable, easy to install, maintain, and reuse, and possesses excellent engineering applicability and economy. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Detailed structural diagram of the push plate; Figure 3 for Figure 1 Detailed structural diagram of the central base; In the diagram: 1. Base; 2. Right-angled groove column; 3. Hydraulic cylinder; 4. Push plate; 5. Support rod; 6. Arc plate; 7. Extension plate; 8. Side lifting ring; 9. Rubber support. Detailed Implementation

[0010] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0011] Please see Figure 1-3This utility model provides an arc-shaped plate support structure for an inclined shaft assembly hole, including a base 1. The outer side of the upper surface of the base 1 is provided with a circular hole. There are two bases 1, which are arranged symmetrically. Right-angled groove columns 2 are fixedly connected to the four corners of the upper surface of the base 1. Right-angled grooves are provided on the inner side of the four right-angled groove columns 2, and push plates 4 are attached to the right-angled grooves. A hydraulic cylinder 3 is fixedly connected to the center of the lower surface of the push plate 4. The bottom of the hydraulic cylinder 3 is fixedly connected to the center of the upper surface of the base 1. Support rods 5 are symmetrically fixedly connected to the upper surface of the push plate 4. Arc-shaped plates 6 are fixedly connected to the upper surface of the support rods 5.

[0012] This device is used in the support section of the inclined shaft assembly tunnel. By setting up right-angled slotted columns 2 and arc-shaped plates 6, the base 1 is first symmetrically set up. The surface of the base 1 is provided with round holes, which can be fixed by anchor rods. Right-angled slotted columns 2 are also fixedly connected to the four corners of the surface of the base 1. The four corners of the push plate 4 can fit against the inner side of the right-angled slotted columns 2, and then the hydraulic cylinder 3 is pushed. The hydraulic cylinder 3 can move independently, or it can be set with a flow valve to operate synchronously. The top of the push plate 4 is connected to the arc-shaped plate 6 through the support rod 5, and the arc-shaped plate 6 completes the support section of the inclined shaft assembly tunnel.

[0013] An extension plate 7 is fixedly connected to the side wall of the base 1, and the extension plate 7 is semi-circular in shape. An extension plate 7 is provided on one side of the base 1, and the surface of the extension plate 7 is convenient for placing hydraulic equipment.

[0014] The side wall of the push plate 4 is fixedly connected with three side lifting rings 8, which are arranged horizontally in sequence. Depending on the height of the push plate 4, a hanging net can also be installed at one of the side lifting rings 8 to intercept small gravel falling from the top of the tunnel, protecting the safety of construction personnel and equipment below. The lifting rings are designed to be easy to install and disassemble, and can be flexibly configured according to the construction stage, enhancing the safety and adaptability of on-site operations. In the initial stage before the support is fully stable, it plays a temporary protective role and reduces construction risks.

[0015] A rubber support 9 is fixedly connected to the upper surface of the arc plate 6. The rubber support 9 is made of rubber and steel plate laminated and vulcanized. The laminated vulcanization process makes the two bond firmly, extends the service life, improves the durability and fatigue resistance of the overall support structure, and can withstand the hydraulic force of the hydraulic cylinder 3.

[0016] Working Principle: This device is used in the support link of the inclined shaft assembly tunnel. By setting up right-angle grooved columns 2 and arc-shaped plates 6, the base 1 is first set up symmetrically. The surface of the base 1 is provided with round holes, which can be fixed by anchor rods. Right-angle grooved columns 2 are also fixedly connected to the four corners of the surface of the base 1. The four corners of the push plate 4 can fit against the inner side of the right-angle grooved columns 2, and then be pushed by hydraulic cylinders 3. The hydraulic cylinders 3 can move independently or be set with flow valves to operate synchronously. An extension plate 7 is set on one side of the base 1. The surface of the extension plate 7 is convenient for placing hydraulic equipment. The top of the push plate 4 is connected to the arc-shaped plate 6 by a support rod 5. The arc-shaped plate 6 completes the support link of the inclined shaft assembly tunnel. A rubber support 9 can also be set on the top of the arc-shaped plate 6. It is made of rubber and steel plate through layering and vulcanization and can withstand the hydraulic force of the hydraulic cylinder 3. Depending on the height of the push plate 4, a hanging net can also be set at the side lifting ring 8 to intercept small gravel falling from the top of the tunnel.

[0017] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A support structure for an arc-shaped plate in an inclined shaft assembly tunnel, characterized in that: The base (1) includes a base (1) with a circular hole on the outer side of its upper surface. There are two bases (1) arranged symmetrically. Right-angled slotted columns (2) are fixedly connected to the four corners of the upper surface of the base (1). Right-angled slots are opened on the inner side of the four right-angled slotted columns (2), and push plates (4) are attached to the right-angled slots. A hydraulic cylinder (3) is fixedly connected to the center of the lower surface of the push plate (4). The bottom of the hydraulic cylinder (3) is fixedly connected to the center of the upper surface of the base (1). Support rods (5) are symmetrically fixedly connected to the upper surface of the push plate (4), and an arc plate (6) is fixedly connected to the upper surface of the support rod (5).

2. The inclined shaft assembly tunnel arc plate support structure according to claim 1, characterized in that: An extension plate (7) is fixedly connected to the side wall of the base (1), and the extension plate (7) is semi-circular in shape. A flow valve can be connected between the inner side walls of the two hydraulic cylinders (3).

3. The inclined shaft assembly tunnel arc plate support structure according to claim 1, characterized in that: The side wall of the push plate (4) is fixedly connected with a side lifting ring (8), and there are three side lifting rings (8) arranged horizontally in sequence.

4. The inclined shaft assembly tunnel arc plate support structure according to claim 1, characterized in that: A rubber support (9) is fixedly connected to the upper surface of the arc plate (6), and the rubber support (9) is made of rubber and steel plate laminated and vulcanized.

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