Tunnel shaft supporting device

Abstract

The utility model relates to the technical field of tunnel engineering supporting, and discloses a tunnel shaft supporting device which comprises a block, a supporting frame is arranged on the inner wall of a soil body, an anti-leakage mechanism is arranged on the inner side of the supporting frame and used for preventing leakage during pouring, a buffering mechanism is arranged on the outer wall of the supporting frame, and the buffering mechanism is used for buffering the soil body. The buffering mechanism is used for preventing the supporting frame from deforming. The anti-leakage mechanism comprises partition plates, the multiple partition plates are arranged on the inner side of the outer wall of the supporting frame at equal intervals, sliding grooves are formed in the right sides of the outer walls of the partition plates, sliding blocks are fixedly connected to the right sides of the outer walls of the partition plates, and the sliding grooves are in sliding connection with the sliding blocks. According to the utility model, the support frame provides support in the soil body, and the partition plates are arranged at equal intervals through the sliding blocks and the sliding chutes, so that the sealing is kept; the umbrella-shaped plugging frame is clamped with the positioning columns, rapid installation is achieved, grout is placed on the plugging frame in an inverted mode, the grout can be evenly injected to the area between the partition plates, and material loss is prevented.

Description

Technical Field

[0001] This utility model relates to the field of tunnel engineering support technology, and in particular to a tunnel shaft support device. Background Technology

[0002] Tunnel shaft support system refers to a series of structural systems and auxiliary devices installed in tunnel engineering for the excavation and later use of shafts (vertical or near-vertical underground passages) to ensure the stability of the shaft wall, control stratum deformation, and prevent collapse or leakage. Its core function is to ensure the safety and reliability of the shaft during construction and operation through mechanical support, stratum reinforcement, and waterproof sealing.

[0003] A search revealed Chinese patent publication number CN219492290U, which discloses a support structure for a ventilation shaft in a deep underground tunnel. The structure includes multiple vertical support strips and multiple steel ring beams. The vertical support strips are inserted into the inner wall of the underground tunnel ventilation shaft, and the steel ring beams are all fitted against the inner wall of the shaft. Multiple positioning blocks are embedded on the outer surface of each steel ring beam, and positioning grooves are formed on the outer sides of each positioning block. The vertical support strips are fitted against the inner walls of these positioning grooves. Grouting anchors are inserted between the positioning blocks and the vertical support strips. The beneficial effect of this invention is that the end of the grouting anchor passes through the positioning block and the vertical support strip and is inserted into the soil layer. The positioning plate at the end of the grouting anchor is tightly fitted to the outer surface of the positioning block, thus completing the connection between the vertical support strip and the steel ring beam. The grouting anchor is then fixed to the soil layer, achieving a rapid connection and fixation effect. However, the sealing effect is poor, and the grouting material is easily lost. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a tunnel shaft support device, which aims to improve the problems of poor sealing effect and easy loss of grouting material in the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a tunnel shaft support device, comprising soil, a support frame provided on the inner wall of the soil, an anti-seepage mechanism provided on the inner side of the support frame to prevent leakage during grouting, a buffer mechanism provided on the outer wall of the support frame to prevent deformation of the support frame; the anti-seepage mechanism includes partitions, a plurality of partitions are equidistantly arranged on the inner side of the outer wall of the support frame, a sliding groove is provided on the right side of the outer wall of the partition, a slider is fixedly connected to the right side of the outer wall of the partition, the sliding groove and the slider are slidably connected, and an auxiliary grouting assembly is provided on the top of the support frame.

[0006] The above technical solution provides support inside the soil through the installation of the support frame, and multiple partitions are equidistantly arranged inside the support frame through the combination of sliders and grooves to maintain a sealed state.

[0007] As a further description of the above technical solution:

[0008] The auxiliary infusion assembly includes an umbrella-shaped plugging frame, which is disposed on the top of the support frame. The bottom wall of the umbrella-shaped plugging frame has a slot, and the top wall of the partition is fixedly connected to a positioning post.

[0009] The above technical solution allows for uniform grouting between partitions by inverting the grout onto the umbrella-shaped sealing frame, thus preventing grout loss.

[0010] As a further description of the above technical solution:

[0011] The buffer mechanism includes a baffle plate, which is installed on the outer wall of the support frame. A cylinder is fixedly connected to the outer wall of the baffle plate. A sliding rod is slidably connected to the inner wall of the cylinder. A spring is installed on the inner wall of the cylinder. A buffer assembly is installed on the outer wall of the support frame.

[0012] The above technical solution involves a sliding rod pressing a spring inside a cylinder, causing the spring to deform and achieve further cushioning.

[0013] As a further description of the above technical solution:

[0014] The buffer assembly includes a corrugated steel plate flexible interlayer, which is installed at the end of the slide bar, and an elastic silicon layer is installed on the outer wall of the corrugated steel plate flexible interlayer.

[0015] Through the above technical solution, the elastic silicon layer and the flexible interlayer of the corrugated steel plate deform, thereby forming a preliminary buffering effect.

[0016] As a further description of the above technical solution:

[0017] The partitions are evenly distributed on the inner side of the outer wall of the support frame, and the partitions are designed in an arc shape.

[0018] The above technical solution involves partitions that are evenly distributed on the inner side of the outer wall of the support frame and are designed in an arc shape to fit the circular or arc-shaped contour of the vertical shaft. The arc-shaped structure can better fit the shaft wall and enhance the sealing effect.

[0019] As a further description of the above technical solution:

[0020] The slots are evenly distributed on the bottom wall of the umbrella-shaped sealing frame, and the slots engage with the positioning posts.

[0021] The above technical solution allows for rapid installation: the umbrella-shaped sealing frame engages with the positioning post on top of the partition via a slot.

[0022] As a further description of the above technical solution:

[0023] The cylinders are equidistantly distributed on the outer wall of the baffle, and the multiple springs are arranged on adjacent sides of the outer wall of the slide rod.

[0024] The above technical solution uses multiple cylinders to protect the support frame, ensuring smooth sliding under pressure and preventing force deviation.

[0025] As a further description of the above technical solution:

[0026] The elastic silicon layer is disposed on the inner side of the outer wall of the soil, and the multiple sliding rods are equidistantly distributed on the inner side of the corrugated steel plate flexible interlayer.

[0027] The above technical solution involves setting an elastic silicon layer that deforms first when the soil is compressed, absorbing and buffering some of the pressure, reducing the impact on subsequent structures, and the sliding rod sliding inside the cylinder to compress the spring.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, the support frame provides support in the soil, and the partitions are arranged at equal intervals through sliders and grooves to maintain a seal; the umbrella-shaped sealing frame engages with the positioning column to achieve quick installation, and the inverted grout on the sealing frame can be evenly injected into the area between the partitions to prevent material loss.

[0030] 2. In this utility model, when the soil applies pressure to the support frame, the elastic silicon layer and the corrugated steel plate interlayer first deform to form a preliminary buffer. Subsequently, the pressure squeezes the spring in the cylinder through the slide rod, and the spring further deforms to buffer the pressure, dissipating stress from multiple directions, preventing the support frame from deforming, and ensuring the stability of the tunnel shaft support structure. Attached Figure Description

[0031] Figure 1 This is a front view of the tunnel shaft support device proposed in this utility model;

[0032] Figure 2 This is a perspective view of the tunnel shaft support device proposed in this utility model;

[0033] Figure 3 This is a partial structural cross-sectional view of the tunnel shaft support device proposed in this utility model;

[0034] Figure 4 This is a partial exploded view of the tunnel shaft support device proposed in this utility model;

[0035] Figure 5 This is a partial structural breakdown diagram of the tunnel shaft support device proposed in this utility model.

[0036] Legend:

[0037] 1. Soil; 2. Support frame; 3. Leakage prevention mechanism; 301. Partition plate; 302. Slide groove; 303. Sliding block; 304. Auxiliary grouting assembly; 3041. Umbrella-shaped sealing frame; 3042. Slot; 3043. Positioning column; 4. Buffer mechanism; 401. Baffle plate; 402. Cylinder; 403. Sliding rod; 404. Spring; 405. Buffer assembly; 4051. Corrugated steel plate flexible interlayer; 4052. Elastic silicon layer. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0039] Reference Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model provides a tunnel shaft support device, including a soil body 1, a support frame 2 provided on the inner wall of the soil body 1, the support frame 2 providing necessary support inside the soil body 1, a seepage prevention mechanism 3 provided on the inner side of the support frame 2 to prevent leakage during grouting, and a buffer mechanism 4 provided on the outer wall of the support frame 2 to prevent deformation of the support frame 2.

[0040] The anti-leakage mechanism 3 includes partitions 301, and multiple partitions 301 are equidistantly arranged on the inner side of the outer wall of the support frame 2. A sliding groove 302 is provided on the right side of the outer wall of the partition 301. A slider 303 is fixedly connected to the right side of the outer wall of the partition 301. The sliding groove 302 and the slider 303 are slidably connected. The partitions 301 are equidistantly arranged on the inner side of the support frame 2 through the cooperation of the slider 303 and the sliding groove 302, which ensures the sealing performance. An auxiliary injection component 304 is provided on the top of the support frame 2.

[0041] The auxiliary injection assembly 304 includes an umbrella-shaped sealing frame 3041, which is set on the top of the support frame 2. The bottom wall of the umbrella-shaped sealing frame 3041 has a slot 3042. The top wall of the partition 301 is fixedly connected to a positioning post 3043. The slots 3042 are evenly distributed on the bottom wall of the umbrella-shaped sealing frame 3041. The slots 3042 engage with the positioning posts 3043. The umbrella-shaped sealing frame 3041 engages with the positioning posts 3043 on the top of the partition 301 through the slots 3042, which facilitates quick installation.

[0042] Specifically, the support frame 2 provides necessary support inside the soil 1. Multiple partitions 301 are arranged equidistantly on the inner side of the support frame 2 by means of the cooperation of the slider 303 and the groove 302, ensuring sealing. The umbrella-shaped sealing frame 3041 located at the top is quickly installed by engaging with the positioning post 3043 at the top of the partition 301 through the slot 3042. By pouring grout onto the umbrella-shaped sealing frame 3041, uniform grouting can be achieved in the area between each partition 301, effectively preventing the loss of grouting material.

[0043] Reference Figure 4 and Figure 5 The buffer mechanism 4 includes a baffle 401, which is installed on the outer wall of the support frame 2. A cylinder 402 is fixedly connected to the outer wall of the baffle 401. A slide rod 403 is slidably connected to the inner wall of the cylinder 402. A spring 404 is installed on the inner wall of the cylinder 402. The slide rod 403 compresses the spring 404 inside the cylinder 402, so that the spring 404 achieves further buffering through deformation. A buffer assembly 405 is installed on the outer wall of the support frame 2. The cylinders 402 are equidistantly distributed on the outer wall of the baffle 401. Multiple springs 404 are arranged on the adjacent side of the outer wall of the slide rod 403.

[0044] The buffer assembly 405 includes a corrugated steel plate flexible interlayer 4051, which is installed at the end of the slide bar 403. An elastic silicon layer 4052 is installed on the outer wall of the corrugated steel plate flexible interlayer 4051. The elastic silicon layer 4052 and the corrugated steel plate flexible interlayer 4051 deform to form a preliminary buffering effect.

[0045] Specifically, when the soil around the tunnel shaft 1 applies pressure to the support frame 2, the outermost elastic silicon layer 4052 will deform, while the corrugated steel plate flexible interlayer 4051 is responsible for dispersing the pressure and absorbing energy, thus initially forming a buffering effect. Subsequently, the remaining pressure will be squeezed by the slide rod 403 to compress the spring 404 inside the cylinder 402. The spring 404 further achieves buffering through deformation, which can buffer and dissipate the pressure from multiple directions, effectively preventing the support frame 2 from deforming due to excessive stress, thereby ensuring the stability of the tunnel shaft support structure.

[0046] Reference Figure 3 and Figure 4The partitions 301 are evenly distributed on the inner side of the outer wall of the support frame 2. The partitions 301 adopt an arc design. The arc structure can better fit the well wall and enhance the sealing effect. The elastic silicon layer 4052 is set on the inner side of the outer wall of the soil 1. When the soil 1 is squeezed, the elastic silicon layer 4052 deforms first, absorbs and buffers part of the pressure, and reduces the impact on the subsequent structure. Multiple sliding rods 403 are evenly distributed on the inner side of the corrugated steel plate flexible interlayer 4051. The sliding rods 403 slide and compress the spring 404 inside the cylinder 402.

[0047] Specifically, the partition plates 301 are evenly distributed on the inner side of the outer wall of the support frame 2 and adopt an arc-shaped design. The arc-shaped structure can better fit the well wall and enhance the sealing effect. The elastic silicon layer 4052 deforms first when the soil 1 is squeezed, absorbing and buffering part of the pressure and reducing the impact on the subsequent structure. The slide rod 403 slides inside the cylinder 402 to compress the spring 404.

[0048] Working principle: The support frame 2 provides support inside the soil 1. Multiple partitions 301 are equidistantly arranged inside the support frame 2 through the combination of sliders 303 and grooves 302 to maintain a sealed state. The umbrella-shaped sealing frame 3041 at the top engages with the positioning column 3043 on the top of the partition 301 through the slot 3042 to achieve quick installation. By inverting the grout onto the umbrella-shaped sealing frame 3041, the area between each partition 301 can be grouted evenly, avoiding the loss of grouting material.

[0049] When the soil around the tunnel shaft 1 applies pressure to the support frame 2, the outermost elastic silicon layer 4052 and the corrugated steel plate flexible interlayer 4051 deform, thus forming a preliminary buffering effect. Subsequently, the remaining pressure will squeeze the spring 404 inside the cylinder 402 through the slide rod 403, so that the spring 404 achieves further buffering through deformation. It can buffer and dissipate pressure from different directions, effectively preventing the support frame 2 from deforming due to excessive stress, thereby ensuring the stability of the tunnel shaft support structure.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tunnel shaft support device, comprising soil (1), characterized in that: The inner wall of the soil (1) is provided with a support frame (2), and the inner side of the support frame (2) is provided with a seepage prevention mechanism (3). The seepage prevention mechanism (3) is used to prevent leakage during grouting. The outer wall of the support frame (2) is provided with a buffer mechanism (4). The buffer mechanism (4) is used to prevent the support frame (2) from deforming. The anti-leakage mechanism (3) includes a partition (301), and multiple partitions (301) are equidistantly arranged on the inner side of the outer wall of the support frame (2). A groove (302) is provided on the right side of the outer wall of the partition (301), and a slider (303) is fixedly connected to the right side of the outer wall of the partition (301). The groove (302) and the slider (303) are slidably connected. An auxiliary injection assembly (304) is provided on the top of the support frame (2).

2. The tunnel shaft support device according to claim 1, characterized in that: The auxiliary infusion assembly (304) includes an umbrella-shaped plugging frame (3041), which is located on the top of the support frame (2). The bottom wall of the umbrella-shaped plugging frame (3041) is provided with a slot (3042), and the top wall of the partition (301) is fixedly connected with a positioning column (3043).

3. The tunnel shaft support device according to claim 1, characterized in that: The buffer mechanism (4) includes a baffle (401), which is installed on the outer wall of the support frame (2). A cylinder (402) is fixedly connected to the outer wall of the baffle (401). A slide rod (403) is slidably connected to the inner wall of the cylinder (402). A spring (404) is installed on the inner wall of the cylinder (402). A buffer assembly (405) is installed on the outer wall of the support frame (2).

4. The tunnel shaft support device according to claim 3, characterized in that: The buffer assembly (405) includes a corrugated steel plate flexible interlayer (4051), which is installed at the end of the slide bar (403), and an elastic silicon layer (4052) is installed on the outer wall of the corrugated steel plate flexible interlayer (4051).

5. The tunnel shaft support device according to claim 1, characterized in that: The partitions (301) are evenly distributed on the inner side of the outer wall of the support frame (2), and the partitions (301) adopt an arc-shaped design.

6. The tunnel shaft support device according to claim 2, characterized in that: The slots (3042) are evenly distributed on the bottom wall of the umbrella-shaped sealing frame (3041), and the slots (3042) engage with the positioning posts (3043).

7. The tunnel shaft support device according to claim 3, characterized in that: The cylinders (402) are equidistantly distributed on the outer wall of the baffle (401), and the multiple springs (404) are arranged on the adjacent side of the outer wall of the slide rod (403).

8. The tunnel shaft support device according to claim 4, characterized in that: The elastic silicon layer (4052) is disposed on the inner side of the outer wall of the soil (1), and the multiple sliding rods (403) are equidistantly distributed on the inner side of the corrugated steel plate flexible interlayer (4051).

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