Tunnel surrounding rock reinforcing device

Abstract

The utility model discloses a tunnel surrounding rock reinforcing device, which belongs to the technical field of tunnel engineering and comprises a supporting frame, a first reinforcing plate arranged on the lower portion of the inner side of the supporting frame, a connecting frame arranged on the inner side of the first reinforcing plate, a first anchor rod arranged on the connecting frame, and a second reinforcing plate arranged on the top of the inner side of the supporting frame. And a second anchor rod is arranged on the second reinforcing plate. The supporting frame is built in the tunnel, the first reinforcing plate and the second reinforcing plate are installed on the inner side of the supporting frame, the reinforcing plates are supported through the supporting frame, installation of the reinforcing plates is facilitated, and the supporting frame can also play a certain supporting and reinforcing role; a plurality of connecting frames are installed on the inner side of the vertically-arranged first reinforcing plate, the connecting frames are connected with the surrounding rock through first anchor rods, the first reinforcing plate is firmly fixed between the supporting frame and the connecting frames, the reinforcing strength of the side face is further enhanced, second anchor rods connected with the surrounding rock are arranged on the second reinforcing plate, and the reinforcing strength of the top is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel engineering technical field especially relates to a tunnel surrounding rock reinforcing device. BACKGROUND

[0002] Tunnel is a kind of engineering construction through mountain or water-blocking area, and it has important role in traffic, energy, water conservancy, environment and other fields.When the tunnel site passes through expansive soil, water-rich soft plastic and other adverse strata paragraphs, the adverse strata as surrounding rock, and due to the low strength of surrounding rock, it is easy to produce invasion limit even collapse during construction, thereby affecting tunnel construction.

[0003] Anchor rod is a kind of artificial reinforcing device commonly used in surrounding rock support, its anchoring effect can make the structure and surrounding rock closely combined into a whole, and it has certain control to radial and non-radial deformation of rock mass, thereby achieving the purpose of stable support.The existing surrounding rock reinforcing method generally installs reinforcing plate on surrounding rock by anchor rod, and the reinforcing plate is attached to the surface of surrounding rock, which is not convenient to install and is easy to fall off. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of tunnel surrounding rock reinforcing device, solve the problem that reinforcing plate is attached to the surface of surrounding rock when installing existing reinforcing device, which is not convenient to install and is easy to fall off.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] The utility model discloses a kind of tunnel surrounding rock reinforcing device, including support frame, the inner side lower part of the support frame is provided with first reinforcing plate, the inner side of the first reinforcing plate is provided with a plurality of connecting frames, the connecting frame is connected with the first reinforcing plate by clamping piece, first anchor rod connected with surrounding rock is provided on the connecting frame, the inner side top of the support frame is provided with second reinforcing plate, second anchor rod connected with surrounding rock is provided on the second reinforcing plate.

[0007] Further, the support frame includes a plurality of supports, and a connecting assembly is arranged between adjacent two supports.

[0008] Still further, the support includes two first bodies, and a second body is arranged on the top of the two first bodies.

[0009] Still further, the connecting assembly includes a sleeve, adjusting rods are arranged on the two sides of the sleeve, one end of the adjusting rod extends to the inside of the sleeve, a connecting seat is arranged on the other end of the adjusting rod, the connecting seat is connected with the first body, and nuts matched with the adjusting rods are arranged at the two ends of the sleeve.

[0010] Further, the connecting frame is arranged in an X shape.

[0011] Further, a connecting portion is arranged on a side of the first reinforcing plate facing the connecting frame, and a plurality of clamping pieces are arranged on the connecting frame and matched with the connecting portion.

[0012] Further, the clamping piece comprises two clamping portions arranged symmetrically, a boss matched with the clamping portion is arranged on the connecting portion, and a locking bolt is arranged between the two clamping portions.

[0013] Compared with the prior art, the tunnel surrounding rock reinforcing device has the beneficial technical effects that:

[0014] The utility model discloses a support frame is set up in the tunnel, and the first reinforcing plate and the second reinforcing plate are installed on the inner side of support frame, and the support frame supports the reinforcing plate, and the reinforcing plate is convenient to install, and the support frame can also play a certain supporting reinforcing effect, a plurality of connecting frames are installed on the inner side of the first reinforcing plate arranged vertically, and the connecting frame is connected with the surrounding rock through the first anchor rod, and the first reinforcing plate is fixed firmly between the support frame and the connecting frame, and the reinforcing strength of the side is further enhanced, and the second anchor rod connected with the surrounding rock is arranged on the second reinforcing plate, and the reinforcing strength of the top is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further described below in combination with the drawings.

[0016] Figure 1 It is the front view of tunnel surrounding rock reinforcing device of the utility model;

[0017] Figure 2 It is the side view of support and connecting assembly of the utility model;

[0018] Figure 3 It is the three -dimensional structure schematic view of support of the utility model;

[0019] Figure 4 It is the three -dimensional structure schematic view of connecting assembly of the utility model;

[0020] Figure 5 It is the three -dimensional structure schematic view of first reinforcing plate, connecting frame, first anchor rod of the utility model;

[0021] Figure 6 It is the three -dimensional structure schematic view of clamping piece of the utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Bracket; 1-1. First frame; 1-2. Second frame; 2. Connecting assembly; 2-1. Sleeve; 2-2. Nut; 2-3. Adjusting rod; 2-4. Connecting seat; 3. First reinforcing plate; 3-1. Connecting part; 4. Clip; 4-1. Clamping part; 4-2. Locking bolt; 5. Connecting frame; 6. First anchor rod; 7. Second reinforcing plate; 8. Second anchor rod. Detailed Implementation

[0023] like Figures 1-6 As shown, a tunnel surrounding rock reinforcement device includes a support frame. A first reinforcement plate 3 is installed on the lower inner side of the support frame. A plurality of connecting frames 5 are installed on the inner side of the first reinforcement plate 3. The connecting frames 5 are connected to the first reinforcement plate 3 by snap-fit ​​parts 4. A first anchor rod 6 connected to the surrounding rock is installed on the connecting frame 5. A second reinforcement plate 7 is installed on the top inner side of the support frame. A second anchor rod 8 connected to the surrounding rock is installed on the second reinforcement plate 7.

[0024] like Figure 2 As shown, the support frame includes several brackets 1, and a connecting component 2 is installed between two adjacent brackets 1.

[0025] like Figure 3 As shown, the support 1 includes two first frames 1-1, and a second frame 1-2 is connected to the top of the two first frames 1-1 via a connecting shaft. The second frame 1-2 is set in an arc shape to match the shape of the tunnel top.

[0026] like Figure 4 As shown, the connecting assembly 2 includes a sleeve 2-1, with adjusting rods 2-3 on both sides of the sleeve 2-1. One end of the adjusting rod 2-3 extends into the interior of the sleeve 2-1, and the other end of the adjusting rod 2-3 is connected to a connecting seat 2-4. The connecting seat 2-4 is connected to the first frame 1-1. Nuts 2-2, which are threadedly connected to the adjusting rods 2-3, are installed at both ends of the sleeve 2-1. In use, rotating the sleeve 2-1 can change the extension length of the adjusting rods 2-3, thereby changing the overall length of the connecting assembly 2 and matching the distance between the connecting assembly 2 and the two supports 1.

[0027] like Figure 5 As shown, the connecting frame 5 is configured in an X shape, and a first anchor rod 6 is installed at the center of the connecting frame 5. The first anchor rod 6 penetrates the first reinforcing plate 3 and is inserted into the surrounding rock. A connecting part 3-1 is connected to the side of the first reinforcing plate 3 facing the connecting frame 5. Multiple snap-fit ​​parts 4 that cooperate with the connecting part 3-1 are connected to the connecting frame 5 by bolts.

[0028] like Figure 6As shown, the clamping piece 4 comprises two clamping parts 4-1 arranged symmetrically, the two clamping parts 4-1 are connected together through a connecting plate, the connecting part 3-1 is provided with a boss matched with the clamping part 4-1, and a locking bolt 4-2 is installed between the two clamping parts 4-1; when the two clamping parts 4-1 are installed outside the two side bosses, the locking bolt 4-2 is penetrated and connected between the two clamping parts 4-1 and locked through a locking nut, so that the two clamping parts 4-1 tightly clamp the boss, and the connection strength is improved.

[0029] The installation process of the utility model is as follows:

[0030] Firstly, two first frame bodies 1-1 and one second frame body 1-2 are connected together to form a support 1, and a plurality of supports 1 are connected together through a connecting assembly 2 to form a support frame; then, a first reinforcing plate 3 is installed at the inner lower part of the support frame, a connecting frame 5 is installed at the inner side of the first reinforcing plate 3, and a first anchor rod 6 is installed on the connecting frame 5, so that the first anchor rod 6 is inserted into the surrounding rock after penetrating the first reinforcing plate 3; finally, a second reinforcing plate 7 is installed at the inner top of the support frame, and a second anchor rod 8 is installed on the second reinforcing plate 7, so that the second anchor rod 8 is inserted into the surrounding rock after penetrating the second reinforcing plate 7, thereby completing the installation of the whole surrounding rock reinforcing device.

[0031] The above-described embodiments only describe the preferred modes of the utility model, and do not limit the scope of the utility model, and various deformations and improvements of the technical solutions of the utility model made by those skilled in the art without departing from the design spirit of the utility model shall fall within the protection scope determined by the claims of the utility model.

Claims

1. A device for reinforcing the surrounding rock of a tunnel, characterized in that: The utility model provides a support frame, the inner side lower part of support frame is provided with first reinforcing plate (3), the inner side of first reinforcing plate (3) is provided with a plurality of connecting frame (5), connecting frame (5) is connected with first reinforcing plate (3) through clamping piece (4), be provided with first anchor rod (6) that connects with surrounding rock on connecting frame (5), the inner side top of support frame is provided with second reinforcing plate (7), and be provided with second anchor rod (8) that connects with surrounding rock on second reinforcing plate (7).

2. The tunnel surrounding rock reinforcing device according to claim 1, characterized in that: The support frame comprises a plurality of supports (1), and a connecting assembly (2) is arranged between adjacent two supports (1).

3. The device of claim 2, wherein: The support (1) comprises two first frame bodies (1-1), and a second frame body (1-2) is arranged on the top of the two first frame bodies (1-1).

4. The device of claim 3, wherein: The connecting assembly (2) comprises a sleeve (2-1), and adjusting rods (2-3) are arranged on both sides of the sleeve (2-1), one end of the adjusting rod (2-3) extends to the inside of the sleeve (2-1), the other end of the adjusting rod (2-3) is provided with a connecting seat (2-4), the connecting seat (2-4) is connected with the first frame body (1-1), and nuts (2-2) matched with the adjusting rods (2-3) are arranged at both ends of the sleeve (2-1).

5. The device of claim 1, wherein: The connecting frame (5) is in the shape of X.

6. The tunnel surrounding rock reinforcing device according to claim 1, characterized by: A connecting portion (3-1) is arranged on one side of the first reinforcing plate (3) facing the connecting frame (5), and a plurality of clamping pieces (4) matched with the connecting portion (3-1) are arranged on the connecting frame (5).

7. The device of claim 6, wherein: The clamping piece (4) comprises two clamping portions (4-1) arranged symmetrically, a boss matched with the clamping portion (4-1) is arranged on the connecting portion (3-1), and a locking bolt (4-2) is arranged between the two clamping portions (4-1).

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