Lightweight shield detection support

Abstract

The utility model belongs to the technical field of shield detection supports, and particularly discloses a lightweight shield detection support. The light-weight shield detection support comprises a base, the base is in a plate shape, and the bottom of the base is provided with a first connecting structure used for being connected with external shield equipment; the support main body is connected with the base, the support main body is a supporting frame body with a flat and continuous outer part and a three-dimensional grid hollow structure inside, reinforcing structures are arranged at grid intersection points in the three-dimensional grid hollow structure, and a second connecting structure used for being connected with detection equipment is arranged on the support main body. The shield detection support has the advantages of being low in weight and high in stability.

Description

Technical Field

[0001] This application belongs to the field of shield tunneling detection support technology, and more specifically, relates to a lightweight shield tunneling detection support. Background Technology

[0002] In tunnel boring machine (TBM) construction, geological exploration equipment is typically fixed to the front end of the TBM using supports to enable multi-point detection. However, currently widely used traditional exploration supports are mostly constructed from heavy-duty steel welded or cast. While this design ensures the rigidity and durability of the supports, it brings significant negative effects: its massive weight directly increases the additional load on the front end of the TBM. This forces the TBM propulsion system to consume more energy to overcome the frictional resistance and inertia caused by this extra weight, resulting in increased load on the main drive power and hydraulic propulsion system, significantly increasing the equipment's energy consumption. Moreover, the excessively heavy front end can easily induce overall or localized vibration, swaying, or even instability in the equipment, affecting the operational accuracy and service life of critical components, necessitating urgent improvement. Utility Model Content

[0003] In view of the deficiencies or improvement needs of the existing technology, this application provides a lightweight shield tunneling detection support, which has the characteristics of low weight and high stability.

[0004] This application provides a lightweight shield tunneling detection support, specifically comprising:

[0005] The base is plate-shaped, and its bottom is provided with a first connection structure for connecting with external tunnel boring equipment;

[0006] The support body is connected to the base. The support body is a support frame with a flat and continuous exterior and a three-dimensional grid hollow structure inside. The support body is provided with a second connection structure for connecting the detection equipment.

[0007] The three-dimensional hollow mesh structure has a reinforced structure at the mesh intersections.

[0008] As a further preferred embodiment, the reinforcement structure is a carbon fiber structure solidified around the grid intersections.

[0009] As a further preferred embodiment, the vertical cross-sectional profile of the reinforced structure is spherical, ellipsoidal, or polygonal.

[0010] As a further preferred embodiment, the three-dimensional mesh hollow structure has multiple mesh layers that are distributed vertically and connected sequentially.

[0011] As a further preferred embodiment, the mesh in the three-dimensional hollow mesh structure is triangular, rectangular or honeycomb-shaped, and the mesh rods in the three-dimensional hollow mesh structure (4) are solid rods or hollow rods with a honeycomb structure.

[0012] As a further preferred embodiment, the first connecting structure includes a threaded hole disposed at the bottom of the base.

[0013] As a further preferred embodiment, the second connection structure includes mounting holes provided on the top and / or sidewall of the bracket body, wherein a wear-resistant bushing is embedded in the mounting holes.

[0014] As a further preferred embodiment, the shield tunneling detection support also includes a shock-absorbing and buffering structure, which is inserted into a three-dimensional grid hollow structure, with the bottom of the shock-absorbing and buffering structure in contact with the base and the top of the shock-absorbing and buffering structure in contact with the inner top wall of the support body.

[0015] As a further preferred embodiment, the outer surface of the shield tunneling detection support is provided with a hydrophobic and mud-resistant coating.

[0016] As a further preferred option, the shield tunneling detection support is an integrated carbon fiber composite component.

[0017] In summary, compared with the prior art, the technical solutions conceived in this application have the following main technical advantages:

[0018] This shield tunneling detection support adopts a hollow structure design, resulting in significant weight reduction, which decreases the load on the front end of the tunnel boring machine and improves equipment operating efficiency. Furthermore, by adding reinforcement structures at the grid intersections within the three-dimensional mesh hollow structure, the overall rigidity of the support is significantly enhanced, preventing grid deformation or breakage, thus giving the shield tunneling detection support the characteristics of low weight and high stability. Moreover, by designing the shield tunneling detection support as a one-piece carbon fiber composite component, the support exhibits excellent durability and strength in corrosive environments, and simplifies installation and maintenance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a lightweight shield tunneling detection support provided in an embodiment of this application;

[0020] Figure 2 This is a bottom view of a lightweight shield tunneling detection support provided in an embodiment of this application;

[0021] Figure 3 This is a cross-sectional view of a lightweight shield tunneling detection support provided in an embodiment of this application;

[0022] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0023] Figure 5 This is a partial schematic diagram of the three-dimensional mesh hollow structure provided in the embodiments of this application;

[0024] Figure 6 This is a cross-sectional view of a hollow rod with a honeycomb structure provided in an embodiment of this application;

[0025] Figure 7 This is a layout diagram of the shock-absorbing and buffering structure, the main body of the support, and the base provided in the embodiments of this application.

[0026] In all the accompanying drawings, the same reference numerals are used to denote the same elements or structures, wherein:

[0027] 1. Base; 2. Support body; 3. First connecting structure; 4. Three-dimensional mesh hollow structure; 5. Reinforcing structure; 6. Second connecting structure; 7. Wear-resistant bushing; 8. Shock-absorbing and buffering structure; 9. Mesh rod; 10. Honeycomb structure. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0029] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0030] This application discloses a lightweight shield tunneling detection support. (Refer to...) Figures 1-5 The lightweight shield tunneling detection support includes a base 1 and a support body 2. The base 1 is plate-shaped, and a first connecting structure 3 for connecting with external shield tunneling equipment is provided at the bottom of the base 1. The support body 2 is connected to the base 1. The support body 2 is a support frame with a flat and continuous exterior and a three-dimensional grid hollow structure 4 inside. A reinforcing structure 5 is provided at the grid intersections in the three-dimensional grid hollow structure 4. A second connecting structure 6 for connecting detection equipment is provided on the support body 2.

[0031] Under this design, the shield tunneling detection support adopts a hollow structure design, which has a significant weight reduction effect, can reduce the load on the front end of the shield machine, and improve the operating efficiency of the equipment. Furthermore, the reinforcement structure 5 is set at the grid intersection of the three-dimensional mesh hollow structure 4, which can significantly enhance the overall rigidity of the support and prevent the grid from deforming or breaking. Thus, the shield tunneling detection support has the characteristics of low weight and high stability.

[0032] Furthermore, in some embodiments, the shield tunneling detection support is an integrated carbon fiber composite component. The support body 2 is made of carbon fiber reinforced polymer (CFRP), a material with high tensile strength (≥2000 MPa) and low density (approximately 1.6 g / cm³). A multi-directional layup structure (e.g., 0° / 45° / 90° tri-directional weave) is created using the carbon fiber composite material, and a honeycomb structure 10 is used in some areas to further enhance the structure's bending strength and impact toughness, achieving superior mechanical properties without increasing mass.

[0033] Specifically, in some embodiments, the three-dimensional mesh hollow structure 4 in the support body 2 has multiple vertically distributed and sequentially connected mesh layers, and the mesh in the three-dimensional mesh hollow structure 4 is triangular, rectangular, or honeycomb-shaped. The mesh rods 9 in the three-dimensional mesh hollow structure 4 are solid rods or... Figure 6 The hollow rod shown has a honeycomb structure 10.

[0034] like Figure 3 As shown, in some specific embodiments, the interior of the support body 2 has a rectangular grid-like hollow structure, and the outer perimeter of the support body 2 is chamfered. The overall dimensions of the support body 2 are: length 300mm, width 200mm, and height 150mm. The grid units are square with a side length of 20mm, and the wall thickness of the support body 2 is 3mm-5mm to ensure a balance between strength and weight. The three-dimensional grid hollow structure 4 has a grid layer spacing of 30mm, and the grid rod cross-section is rectangular (preferably 5mm×5mm), integrally formed using a carbon fiber lamination process.

[0035] Preferred, such as Figures 3-4 As shown, in some specific embodiments, the reinforcing structure 5 is a carbon fiber laminate structure solidified around the grid intersections. By setting the reinforcing structure 5 at the grid intersections, a high-toughness connection node is formed. The vertical cross-sectional profile of the reinforcing structure 5 is spherical, ellipsoidal, or polygonal. Preferably, the reinforcing structure 5 is made of carbon fiber reinforced material (such as carbon fiber reinforced polymer composite CFRP), and its overall shape is spherical with a preferred diameter of 10 mm. The reinforcing structure 5 is bonded to the grid members through high-temperature curing to enhance the overall rigidity of the support and prevent grid deformation or breakage.

[0036] Preferred, such as Figure 7As shown, in some embodiments, the shield tunneling detection support also includes a shock-absorbing buffer structure 8. The shock-absorbing buffer structure 8 is inserted into the three-dimensional mesh hollow structure 4, with its bottom contacting the base 1 and its top contacting the inner top wall of the support body 2. By setting the shock-absorbing buffer structure 8, it is beneficial to mitigate the vibration and impact during shield tunneling construction, and to avoid damage to the detection equipment or data acquisition distortion. The shock-absorbing buffer structure 8 includes, but is not limited to, silicone pads, rubber vibration isolation blocks, or suspension spring structures. Preferably, multiple shock-absorbing buffer structures 8 are arranged side-by-side inside the support body 2.

[0037] Furthermore, in some embodiments, the second connecting structure 6 includes mounting holes provided in the support body 2 and / or sidewall, the diameter of which is 20mm-30mm, for mounting geological detectors (such as acoustic detectors, electromagnetic detectors, etc.). Preferably, as... Figure 1 As shown, a wear-resistant bushing 7 (such as a wear-resistant ceramic bushing) is embedded in the mounting hole to enhance the wear resistance of the hole wall. In some other embodiments, the second connection structure 6 includes a snap-fit ​​structure or other existing connection structures.

[0038] Furthermore, in some embodiments, the base 1 has dimensions of 300mm × 200mm × 10mm, and the first connecting structure 3 includes threaded holes located at the bottom of the base 1. Preferably, four threaded holes are arranged in a matrix and are selected as M16 bolt holes for fixing the shield tunneling detection bracket to the front end of the shield machine. Preferably, the base 1 and the bracket body 2 are integrally formed using a carbon fiber winding process to maintain overall lightweight. In some other embodiments, the first connecting structure 3 includes a snap-fit ​​structure or other existing connecting structures.

[0039] Furthermore, in some embodiments, the outer surface of the support is coated with a nano-level hydrophobic and mud-resistant coating. This coating has self-cleaning capabilities, reducing mud and water adhesion during tunnel boring machine (TBM) construction and extending the equipment's service life. Preferably, key connection points of the support (such as the first connection structure 3) are equipped with dustproof sealing rings or mud-resistant skirt structures to effectively prevent mud from entering structural gaps.

[0040] Under this design, the weight of this shield tunneling detection support can be reduced by approximately 50% compared to traditional steel supports, which reduces the load on the front end of the tunnel boring machine, improves equipment operating efficiency, and demonstrates significant weight reduction. Furthermore, the use of carbon fiber composite materials and a mesh structure design extends the support's lifespan in corrosive environments, essentially extending it by more than three times (approximately 8000 hours) compared to traditional supports, thus improving durability. The lightweight design and related connection structure design simplify the detector installation process, shorten installation time, reduce construction downtime, and improve installation efficiency.

[0041] In some embodiments, the manufacturing process of a shield tunneling detection support includes: preparing the support body 2 using a carbon fiber prepreg lamination process, integrally molding it in a mold, and demolding it after high-temperature curing (150°C, 2 hours). Detector mounting holes are pre-drilled using CNC machining, and ceramic bushings are embedded in the inner walls of the holes and then cured and bonded. The base 1 and the support body 2 are integrally molded using a carbon fiber winding process to ensure connection strength.

[0042] In some embodiments, the assembly steps of a shield tunneling detection support include:

[0043] S1: Install the geological detector (such as an ultrasonic probe, electromagnetic probe, etc.) at the second connecting structure 6 of the support body 2, fix it with bolts and connect the signal cable.

[0044] S2: Use bolts to fix the first connecting structure 3 of the base 1 to the front end of the tunnel boring machine to ensure that the support is installed stably.

[0045] S3: Conduct load tests before construction to verify the strength and stability of the support structure.

[0046] It should be understood that expressions such as "comprising" and "may include" as used in this application indicate the existence of the disclosed functions, operations, or constituent elements, and do not limit one or more additional functions, operations, and constituent elements. In this application, terms such as "comprising" and / or "having" may be interpreted as indicating a specific characteristic, number, operation, constituent element, component, or combination thereof, but should not be interpreted as excluding the existence or possibility of adding one or more other characteristics, numbers, operations, constituent elements, components, or combinations thereof.

[0047] It should be understood that the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this application.

[0048] 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 one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0049] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0050] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A lightweight shielded detection support, characterized by, The shield tunneling detection support includes: The base (1) is plate-shaped and has a first connection structure (3) at its bottom for connecting with external shield tunneling equipment. The support body (2) is connected to the base (1). The support body (2) is a support frame with a flat and continuous exterior and a three-dimensional grid hollow structure (4) inside. The support body (2) is provided with a second connection structure (6) for connecting the detection equipment. Among them, a reinforcement structure (5) is provided at the grid intersection point in the hollow structure (4) of the three-dimensional grid.

2. The lightweight shield tunneling support of claim 1, wherein, The reinforcement structure (5) is a carbon fiber structure solidified around the grid intersections.

3. The lightweight shield tunneling support of claim 1, wherein, The vertical cross-sectional profile of the reinforced structure (5) is spherical, ellipsoidal or polygonal.

4. The lightweight shield tunneling support of claim 1, wherein, The three-dimensional mesh hollow structure (4) has multiple mesh layers that are distributed vertically and connected sequentially.

5. The lightweight shield tunneling support of claim 1, wherein, The mesh in the three-dimensional hollow mesh structure (4) is triangular, rectangular or honeycomb-shaped, and the mesh rods (9) in the three-dimensional hollow mesh structure (4) are solid rods or hollow rods with honeycomb structure (10).

6. The lightweight shield tunneling support of claim 1, wherein, The first connecting structure (3) includes a threaded hole disposed at the bottom of the base (1).

7. The lightweight shield tunneling support of claim 1, wherein, The second connection structure (6) includes mounting holes on the top and / or side wall of the bracket body (2), and a wear-resistant bushing (7) is embedded in the mounting holes.

8. The lightweight shield tunneling support of any one of claims 1-7, wherein, The shield tunneling detection support also includes a shock-absorbing buffer structure (8), which is installed in a three-dimensional mesh hollow structure (4), and the bottom of the shock-absorbing buffer structure (8) is in contact with the base (1), and the top of the shock-absorbing buffer structure (8) is in contact with the inner top wall of the support body (2).

9. The lightweight shield tunneling support of any one of claims 1-7, wherein, The outer surface of the shield tunneling detection support is coated with a hydrophobic and mud-proof coating.

10. The lightweight shield tunneling support of any one of claims 1-7, wherein, The shield tunneling detection support is a one-piece component.

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