Combined type modularized splicing shield segment

Abstract

The utility model provides a combined type modularized splicing shield segment which comprises segment pipes, the two segment pipes are both arc-shaped, the inner surfaces of the two segment pipes are both provided with cavities, the surfaces of the two segment pipes are both provided with assembling assemblies, the assembling assemblies comprise trapezoid clamping grooves, and the trapezoid clamping grooves are connected with the cavities. The two trapezoidal clamping grooves are formed in the right sides of the surfaces of the two sheet tubes, trapezoidal clamping blocks are fixedly mounted on the left sides of the surfaces of the two sheet tubes, the trapezoidal clamping blocks are clamped in inner cavities of the trapezoidal clamping grooves, and inserting blocks are fixedly mounted on the left side and the right side of the bottom of each sheet tube. By arranging the assembling assembly, the sealing gaskets are extruded to be tightly attached to the inner sides of the two inserting blocks when the sealing gaskets are inserted into the inner sides of the inserting blocks, so that water is effectively prevented from leaking to the inner side through the splicing position of the finned tubes, convenience and sealing performance during finned tube assembling are achieved, and the service life of the finned tubes is prolonged. And an operator can use the device conveniently.

Description

Technical Field

[0001] This utility model relates to a modular splicing shield tunnel segment, belonging to the field of shield tunnel segment technology. Background Technology

[0002] Tunnel boring machine (TBM) segments are the main assembly components in TBM construction. They form the innermost barrier of the tunnel, bearing the responsibility of resisting soil pressure, groundwater pressure, and some special loads. TBM segments are the permanent lining structure of shield tunnels, and their quality directly affects the overall quality and safety of the tunnel.

[0003] Chinese Patent Publication No. CN 216553932 U discloses a tunnel segment for a shield tunnel, including a base plate. The surface of the base plate has a connecting layer, which includes a connecting plate and a protrusion. The protrusion is fixedly connected to one side of the connecting plate, and the other side of the connecting plate has a matching engagement groove. The protrusion and engagement groove are slidably connected. The connecting plate is fixedly connected to the ends of two base plates, and its surface has through holes. Both the base plate and the protrusion are made of concrete. A support body is provided inside the base plate, comprising a support plate and a prism. The prism is fixedly connected to the surface of the support plate, and the support plate is fixedly connected between the two base plates. Both the support plate and the prism are made of steel. This tunnel segment, through the connecting layer, allows eight segments to be combined together to form a tubular structure, facilitating segment assembly.

[0004] Tunnel boring machine (TBM) segments are typically made of cast concrete. When the cast TBM segments are spliced ​​together, there may be gaps at the joints. If the above-mentioned device does not seal these gaps, water may leak from the gaps after the TBM segments are assembled, posing a risk of leakage and making it inconvenient for operators to use.

[0005] To address this, a modular and composite shield tunnel segment assembly method is proposed. Utility Model Content

[0006] In view of this, the present invention provides a modular splicing shield tunnel segment to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.

[0007] The technical solution of this utility model is implemented as follows: a modular splicing shield tunnel segment includes two segments, both of which are arc-shaped. A cavity is formed on the inner surface of each segment. An assembly component is provided on the surface of each segment. The assembly component includes trapezoidal snap-fit ​​grooves. Both trapezoidal snap-fit ​​grooves are located on the right side of the surface of each segment. A trapezoidal snap-fit ​​block is fixedly installed on the left side of the surface of each segment. The trapezoidal snap-fit ​​block snaps into the inner cavity of the trapezoidal snap-fit ​​groove. Insertion blocks are fixedly installed on the left and right sides of the bottom of each segment. Insertion plates are inserted into the surface of each insertion block, and a sealing gasket is fixedly installed at the middle of the top of each insertion plate.

[0008] More preferably, the sealing gasket is made of rubber, and the size of the sealing gasket is greater than the distance between the inner sides of the two plug blocks.

[0009] More preferably, the two pre-connected tubes and the two trapezoidal snap-fit ​​blocks are made of concrete, and the four plug-in blocks and plug-in plates are made of steel.

[0010] More preferably, the plug-in blocks on the left and right sides of the bottom of the tube are of the same size, and the plug-in blocks on the left and right sides of the bottom of the tube face opposite directions.

[0011] More preferably, both the left and right sides of the plug-in plate surface are threaded with mounting bolts, and the top of the mounting bolts is threaded to the inner surface of the tube.

[0012] More preferably, the top of the inner surface of the tube is coated with a first waterproof layer, and the material of the first waterproof layer is a nano-waterproof coating.

[0013] More preferably, the bottom of the inner surface of the tube is coated with a second waterproof layer, and the material of the second waterproof layer is polyurethane waterproof coating.

[0014] More preferably, the cavity contains reinforcing steel bars, which are fixedly installed in the cavity by concrete pouring.

[0015] The present invention has the following advantages due to the adoption of the above technical solution:

[0016] I. This utility model, through the assembly of multiple sheet tubes, allows for the interassembly of trapezoidal snap-fit ​​blocks into the inner cavity of trapezoidal snap-fit ​​grooves. Subsequently, two adjacent plug-in blocks are snapped and fixed together using plug-in plates. At this point, a sealing gasket is inserted into the inner side of the two plug-in blocks. Since the size of the sealing gasket is larger than the size of the two plug-in blocks, the sealing gasket is compressed and tightly adheres to the inner side of the two plug-in blocks when inserted, thereby effectively preventing water from leaking inward through the splice of the sheet tubes. This achieves both convenience and sealing during sheet tube assembly, making it convenient for operators to use.

[0017] Second, by setting installation bolts, this utility model can facilitate quick assembly and disassembly of the plug-in plate, improving the convenience of assembling the segmented tube. By setting the first waterproof layer, the segmented tube can achieve a preliminary anti-leakage effect, improving its water resistance. By setting the second waterproof layer, the waterproof effect of the segmented tube can be further improved, strengthening its anti-leakage performance. By setting reinforcing steel components, the overall strength and toughness of the segmented tube can be improved.

[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a three-dimensional front view structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the steel reinforcement structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the cavity structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the disassembly structure of the reinforcing steel component according to this utility model;

[0024] Figure 5 This is a schematic diagram of the assembly component structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the cross-sectional structure of the tube of this utility model.

[0026] Reference numerals: 1. Sheet tube; 2. Assembly component; 201. Trapezoidal snap-fit ​​groove; 202. Trapezoidal snap-fit ​​block; 203. Insertion block; 204. Insertion plate; 205. Sealing gasket; 206. Mounting bolt; 207. First waterproof layer; 208. Second waterproof layer; 3. Cavity; 4. Reinforcing steel component. Detailed Implementation

[0027] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0028] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0029] Example 1

[0030] like Figure 1-5 As shown, this utility model embodiment provides a modularly assembled shield tunnel segment, including two segment tubes 1, each segment tube 1 being arc-shaped. A cavity 3 is formed on the inner surface of each segment tube 1. An assembly component 2 is provided on the surface of each segment tube 1. The assembly component 2 includes trapezoidal snap-fit ​​grooves 201, both of which are located on the right side of the surface of the two segment tubes 1. A trapezoidal snap-fit ​​block 202 is fixedly installed on the left side of the surface of each segment tube 1, and the trapezoidal snap-fit ​​block 202 snaps into the inner cavity of the trapezoidal snap-fit ​​groove 201. The left and right sides of the bottom of the segment tube 1 are also fixed. The two plug-in blocks 203 are installed, and plug-in plates 204 are inserted into the surfaces of the two plug-in blocks 203. A sealing gasket 205 is fixedly installed at the middle of the top of the plug-in plate 204. The sealing gasket 205 is made of rubber and its size is larger than the distance between the inner sides of the two plug-in blocks 203. The two tubes 1 and the two trapezoidal snap-fit ​​blocks 202 are both made of concrete. The four plug-in blocks 203 and the plug-in plate 204 are all made of steel. The plug-in blocks 203 on the left and right sides of the bottom of the tube 1 are all the same size and face opposite directions.

[0031] By setting up assembly component 2, multiple sheet tubes 1 are assembled together, so that trapezoidal snap-fit ​​block 202 snaps into the inner cavity of trapezoidal snap-fit ​​groove 201. Then, two adjacent plug-in blocks 203 are snapped and fixed by plug-in plate 204. At this time, sealing gasket 205 is inserted into the inner side of the two plug-in blocks 203. Since the size of sealing gasket 205 is larger than the size of the two plug-in blocks 203, the sealing gasket 205 is squeezed and tightly adheres to the inner side of the two plug-in blocks 203 when it is inserted into the inner side of the plug-in blocks 203. This effectively prevents water from leaking into the inner side through the splice of sheet tube 1, realizing the convenience and sealing of sheet tube 1 assembly, and making it convenient for operators to use.

[0032] Example 2

[0033] like Figure 2-5 As shown, in one embodiment, mounting bolts 206 are threadedly connected to both the left and right sides of the surface of the plug plate 204. The top of the mounting bolts 206 is threadedly connected to the inner surface of the tube 1. The top of the inner surface of the tube 1 is coated with a first waterproof layer 207, which is made of nano-waterproof coating. The bottom of the inner surface of the tube 1 is coated with a second waterproof layer 208, which is made of polyurethane waterproof coating. A steel bar 4 is provided in the inner cavity of the cavity 3. The steel bar 4 is fixedly installed in the inner cavity of the cavity 3 by concrete pouring.

[0034] By setting the mounting bolts 206, the plug plate 204 can be quickly disassembled and assembled, improving the ease of assembling the tube 1. By setting the first waterproof layer 207, the tube 1 can achieve a preliminary anti-leakage effect, improving the water resistance of the tube 1. By setting the second waterproof layer 208, the waterproof effect of the tube 1 can be further improved, strengthening the anti-leakage performance of the tube 1. By setting the reinforcing steel member 4, the overall strength and toughness of the tube 1 can be improved by adding the reinforcing steel member 4 to the concrete.

[0035] In operation, the present invention is as follows: During assembly, the two trapezoidal snap-fit ​​grooves 201 are first fitted together so that the trapezoidal snap-fit ​​block 202 is snapped into the inner cavity of the trapezoidal snap-fit ​​groove 201. At this time, the insertion blocks 203 at the bottom of the two sheet tubes 1 are close to each other and are inserted into the outside of the two insertion blocks 203 through the insertion plate 204. At this time, the sealing gasket 205 is squeezed and inserted into the inside of the two insertion blocks 203, and is tightly fitted to the inside of the insertion blocks 203. Then, by rotating the mounting bolt 206, the insertion plate 204 is fixedly installed at the bottom of the two sheet tubes 1. Then, the above steps are repeated to assemble the eight sheet tubes 1 together, thereby forming a circular tube body, realizing the assembly of the sheet tubes 1.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A modularly assembled shield tunnel segment, comprising a segment (1), characterized in that, Both of the two tubes (1) are arc-shaped, and both of the inner surfaces of the two tubes (1) are provided with cavities (3). Both of the two tubes (1) are provided with assembly components (2). The assembly components (2) include trapezoidal snap-fit ​​grooves (201). Both trapezoidal snap-fit ​​grooves (201) are opened on the right side of the surface of the two tubes (1). Both of the two tubes (1) are fixedly installed with trapezoidal snap-fit ​​blocks (202) on the left side of the surface of the two tubes (1). The trapezoidal snap-fit ​​blocks (202) are snapped into the inner cavity of the trapezoidal snap-fit ​​grooves (201). Both of the bottom left and right sides of the tubes (1) are fixedly installed with plug-in blocks (203). Both plug-in blocks (203) are plugged into the surface of the plug-in blocks (203). A plug-in plate (204) is plugged into the top of the plug-in plate (204). A sealing gasket (205) is fixedly installed at the middle of the top of the plug-in plate (204).

2. The modular splicing shield tunnel segment according to claim 1, characterized in that: The sealing gasket (205) is made of rubber, and the size of the sealing gasket (205) is greater than the distance between the inner sides of the two plug blocks (203).

3. The modular splicing shield tunnel segment according to claim 1, characterized in that: The two tube segments (1) and the two trapezoidal snap-fit ​​blocks (202) are made of concrete, and the four plug-in blocks (203) and plug-in plates (204) are made of steel.

4. The modular splicing shield tunnel segment according to claim 1, characterized in that: The plug-in blocks (203) on the left and right sides of the bottom of the tube (1) are all the same size, and the plug-in blocks (203) on the left and right sides of the bottom of the tube (1) face opposite directions.

5. A modularly assembled shield tunnel segment according to claim 1, characterized in that: The left and right sides of the plug plate (204) are threaded with mounting bolts (206), and the top of the mounting bolts (206) is threaded to the inner surface of the tube (1).

6. The modular splicing shield tunnel segment according to claim 1, characterized in that: The top of the inner surface of the tube (1) is coated with a first waterproof layer (207), and the material of the first waterproof layer (207) is a nano waterproof coating.

7. A modularly assembled shield tunnel segment according to claim 1, characterized in that: The bottom of the inner surface of the tube (1) is coated with a second waterproof layer (208), and the material of the second waterproof layer (208) is polyurethane waterproof coating.

8. A modularly assembled shield tunnel segment according to claim 1, characterized in that: The cavity (3) is provided with a steel bar (4), which is fixedly installed in the cavity (3) by concrete pouring.

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