Dismantling protective support for shield segment transformation

Abstract

The utility model provides a demolition protective support for shield segment transformation, which comprises a plurality of support groups, each support group comprises a low-foot frame and a main beam frame, the low-foot frame and the main beam frame are both square tubes with square sections, two symmetrical connecting ends are arranged above the low-foot frame, and the two symmetrical connecting ends are connected with the main beam frame. Two connection quantity frames are connected to the upper portion of the low-foot frame, and the connection quantity frames are arranged on the upper portion of the main beam frame and used for supporting the shield pipe wall on the top. Lateral supporting sets are arranged on the sides, away from each other, of the two main beam frames and the two connection quantity frames. The protective support has the advantages of being convenient to build, capable of saving the construction period, convenient to convey, safe, reliable, adaptive to adjustment and capable of achieving free block-divided supporting, the operation requirement during shield segment transformation can be comprehensively met, the construction period is shortened, the construction period is shortened, the construction period is shortened, and the construction period is shortened. And the working efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of protective support equipment, in particular to a dismantling protective support for shield segment reconstruction. Background Art

[0002] The shield method is a fully mechanized construction method in the dark excavation method. It pushes the shield machine underground, supports the surrounding rock through the shield shell and segments to prevent collapse into the tunnel, and excavates the soil in front of the excavation face with a cutting device, transports it out of the hole through the excavation machinery, pressurizes it at the rear with a jack, and assembles precast concrete segments to form a mechanized construction method for the tunnel structure. The existing support structure usually uses an integral support device or a spliced ​​scaffolding steel pipe to support the structure of the hanging pipe hole. When the traditional scaffolding steel pipe is built on the spot in the tunnel, due to the round tube state and its connection method that relies on connectors for fixing, it is difficult to build, and the lengths are different. When adapting to the distance to the pipe wall, it cannot be adjusted automatically, and the stability is poor. In the process of dismantling and renovating the shield segments, it cannot provide a good support effect on the overall tunnel surface when repairing or replacing the segments.

[0003] To achieve the above-mentioned purpose, the utility model provides a dismantling protection bracket for shield segment reconstruction, which can solve the problems raised in the above-mentioned background technology. Utility Model Content

[0004] The utility model adopts the following technical solutions to achieve:

[0005] A dismantling protection support for shield segment modification, comprising a plurality of support groups, wherein a single support group comprises a low foot frame and a main beam frame, wherein the low foot frame and the main beam frame are both square tubes with square cross-sections, wherein two symmetrical connecting ends are arranged above the low foot frame, wherein two connecting measuring frames are connected to the upper part of the low foot frame, and wherein a connecting measuring frame is arranged above the main beam frame for supporting the top shield pipe wall;

[0006] A lateral support group is provided on the side away from each other of the two main beam frames and the two connecting measuring frames; a screw fixing part is provided on the top of the connecting measuring frame and the top of the lateral support group for adjusting the length.

[0007] Preferably, the screw fixing part is a square tube with one side open, a threaded telescopic rod and a plurality of adjusting bolts are penetrated inside the screw fixing part, an isolation steel plate is provided in the middle section of the screw fixing part, and the two adjusting bolts between the isolation steel plate and the port are movable bolts.

[0008] Preferably, the lateral support group includes a primary connecting frame, a secondary connecting frame, and a tertiary connecting frame;

[0009] Two transverse connecting members are arranged between the two main beam frames, and one transverse connecting member is connected between the two connecting measuring frames;

[0010] The opposite sides of the main beam frame and the connecting frame are connected to the primary connecting frame, the secondary connecting frame and the tertiary connecting frame in sequence from top to bottom, and the installation ends of the primary connecting frame, the secondary connecting frame and the tertiary connecting frame all include a screw fixing part.

[0011] Preferably, the primary connecting frame is connected to the middle section of the connecting frame, and the transverse connecting piece between the two primary connecting frames is flush with the primary connecting frame;

[0012] The secondary connecting frame is connected to one side of the connecting position between the main beam frame and the connecting frame, and the transverse connecting piece between the two secondary connecting frames is flush with the height of the secondary connecting frame;

[0013] The three-stage connecting frame is connected to one side of the middle section of the main beam frame, and the transverse connecting piece between two three-stage connecting frames is flush with the height of the three-stage connecting frame; the lengths of the first-stage connecting frame, the second-stage connecting frame and the third-stage connecting frame increase step by step.

[0014] Preferably, one end of the lateral support group away from the screw fixing portion is connected to a connecting platen, and both ends of the transverse connecting member are connected to connecting plates;

[0015] One end of the connecting plate is a connecting plate, and the other end is a welding end;

[0016] The transverse connecting member is fixedly connected to the main beam frame via two connecting platforms;

[0017] The lateral connection group and the main beam frame are fixedly connected via the connection platform.

[0018] Preferably, a bottom supporting connecting frame is provided at the bottom of the low-leg frame for connecting the bottom moving parts.

[0019] Preferably, two inter-group welded trusses are connected between two adjacent low-leg frames, and the inter-group welded trusses are welded to the sides of the low-leg frames.

[0020] Preferably, two sides of the low-leg frame include two groups of screw fixing parts, and the threaded telescopic rods at both ends of the low-leg frame extend downward.

[0021] Preferably, one end of the screw of the screw fixing portion is connected to an adaptable plate, and one side of the adaptable plate is in contact with the inner wall of the tunnel.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] The utility model can provide strong support for the shield tube segments inside the tunnel from the inside to the outside of the tunnel through multiple main beam frames, connecting frames and lateral support groups fixed by simple welding. By adjusting the length of the threaded telescopic rod inside the screw fixing part, the shield tube segments at local positions can be repaired and replaced during the transformation of the shield tube segments. The arc-shaped shield tube walls in all directions are matched and supported by fixing bolts, thereby forming all-round support for the tunnel tube walls. At the same time, it can adapt to different pipeline requirements and simplify the difficulty and operation time of scaffolding construction. Direct fixation by multiple groups of identical square tubes with fewer components in the three directions of up and down, left and right, and front and back can greatly simplify the operation process and improve the stability of the bracket, and has better reliability. In addition, the processing of several separate components can well unify the manufacturing process of the raw material square tubes, and can save more manpower and material resources in the process of transportation, stacking and connection, and can save costs in the process of shield tube segment transformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model being adapted to the shield tube wall;

[0025] Figure 2 It is a three-dimensional schematic diagram of the multi-layer structure of the utility model;

[0026] Figure 3 These are two connection structures of the main beam frame of the utility model;

[0027] Figure 4 It is a structural schematic diagram of the connection measuring frame of the utility model;

[0028] Figure 5 It is a structural schematic diagram of the low-leg frame of the utility model;

[0029] Figure 6 It is a structural schematic diagram of the primary connecting frame of the utility model.

[0030] In the figure: 1. Low-leg frame; 2. Main beam frame; 3. Connecting frame; 4. Primary connecting frame; 5. Secondary connecting frame; 6. Third-level connecting frame; 7. Bottom connecting frame; 8. Screw fixing part; 9. Horizontal connecting piece; 10. Connecting table; 11. Inter-group welded truss; 12. Adjusting bolt; 13. Threaded telescopic rod; 14. Adaptive plate. DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0032] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly connected by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0034] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0035] Please refer to the attached Figure 1-3 , including a plurality of bracket groups, a single bracket group includes a low foot frame 1 and a main beam frame 2, the low foot frame 1 and the main beam frame 2 are both square tubes with square cross-sections, two symmetrical connecting ends are provided above the low foot frame 1, two connecting measuring frames 3 are connected above the low foot frame 1, and a connecting measuring frame 3 is provided above the main beam frame 2 for supporting the top shield pipe wall;

[0036] The two main beam frames 2 and the two connecting measuring frames 3 are both provided with lateral support groups on the sides away from each other;

[0037] The top of the connecting measuring frame 3 and the top of the lateral support group are both provided with a screw fixing portion 8 for adjusting the length.

[0038] Please refer to Figure 2 , Figure 6 The screw fixing part 8 is a square tube with one side open. A threaded telescopic rod 13 and a plurality of adjusting bolts 12 are penetrated inside the screw fixing part 8. An isolation steel plate is provided in the middle section of the screw fixing part 8. The two adjusting bolts 12 between the isolation steel plate and the port are movable bolts.

[0039] Please pay attention to Figure 1-3 , Figure 6 , the lateral support group includes a primary connecting frame 4, a secondary connecting frame 5, and a tertiary connecting frame 6;

[0040] Two transverse connecting members 9 are provided between the two main beam frames 2, and one transverse connecting member 9 is connected between the two connecting measuring frames 3;

[0041] The opposite sides of the main beam frame 2 and the connecting frame 3 are connected to the primary connecting frame 4, the secondary connecting frame 5, and the tertiary connecting frame 6 from top to bottom in sequence, and the installation ends of the primary connecting frame 4, the secondary connecting frame 5, and the tertiary connecting frame 6 all include a screw fixing part 8.

[0042] Please pay attention to Figure 2 The first-level connecting frame 4 is connected to the middle section of the connecting frame 3, and the transverse connecting member 9 between the two first-level connecting frames 4 is flush with the first-level connecting frame 4;

[0043] The secondary connecting frame 5 is connected to one side of the connecting position of the main beam frame 2 and the connecting frame 3, and the transverse connecting member 9 between the two secondary connecting frames 5 is flush with the height of the secondary connecting frame 5;

[0044] The three-stage connecting frame 6 is connected to one side of the middle section of the main beam frame 2, and the transverse connecting member 9 between the two three-stage connecting frames 6 is flush with the height of the three-stage connecting frame 6;

[0045] The lengths of the primary connecting frame 4 , the secondary connecting frame 5 , and the tertiary connecting frame 6 increase step by step.

[0046] Please pay attention to Figure 3-5 , the end of the lateral support group away from the screw fixing portion 8 is connected to a connecting plate 10, and both ends of the transverse connecting member 9 are connected to a connecting plate 10;

[0047] One end of the connecting plate 10 is a connecting plate, and the other end is a welding end;

[0048] The transverse connecting member 9 is fixedly connected to the main beam frame 2 via two connecting platforms 10;

[0049] The lateral connection group and the main beam frame 2 are fixedly connected via the connection platform 10 .

[0050] Please pay attention to Figure 2-6 The bottom of the low-leg frame 1 is provided with a bottom supporting connecting frame 7 for connecting the bottom moving parts;

[0051] Two inter-group welded trusses 11 are connected between two adjacent low-foot frames 1, and the inter-group welded trusses 11 are welded to the sides of the low-foot frames 1;

[0052] The two sides of the low foot frame 1 include two sets of screw fixing parts 8, and the threaded telescopic rods 13 at both ends of the low foot frame 1 extend downward;

[0053] One end of the screw of the screw fixing part 8 is connected to an adaptable plate 14, and one side of the adaptable plate 14 is in contact with the inner wall of the tunnel.

[0054] The specific implementation of the utility model is as follows:

[0055] The utility model only needs to process the following materials: low-foot frame 1, main beam frame 2, connecting frame 3, transverse connector 9. Regarding the processing of the lateral support assembly, it is only necessary to assemble and weld the internal structure of the screw fixing part 8. The processing, forming and assembly of the low-foot frame 1, main beam frame 2, connecting frame 3 and transverse connector 9 can be processed in batches. During construction, they can be directly assembled into a set for bolt connection and basic welding. The structure of the connecting plate 10 is described as follows: one end of it is a welding surface for field welding between the low-foot frame 1, the main beam frame 2 and the lateral group, and the other end has a plate-shaped connecting surface with threaded holes, which makes the lateral positive through the form of a square tube. The connections in all directions are flat, so as to form a better support effect for the shield tube wall. In addition, since it has a certain length, it can be convenient to make the operation more convenient when the bolt connection is performed; the additional description of the screw fixing part 8 is as follows: the open surface on one side of the screw fixing part 8 is used to adjust the nut position, and the two movable bolts between the partitions inside it are in a loose state when adjusting the extension of the threaded telescopic rod 13. After the adjustment is completed, the extension amount of the threaded telescopic rod 13 can be tightened and fixed by moving the two bolts in opposite outer directions on both sides. The same is true for the screw fixing parts 8 on both sides of the low-foot frame 1. After the adjustment is completed, the two bolts can be fixed by torque;

[0056] When the equipment is installed on site, the sides of multiple low-foot frames 1 are first welded, and the bottom supporting connecting frame 7 at the bottom is equipped with a wheel pair or directly fixed in position, and the square tube structure can also be used for placement. Then, the corresponding threaded openings between the main beam frame 2 and the low-foot frame 1 are spliced, and bolts are applied to fix them. The transverse connecting pieces 9 between adjacent main beam frames 2 and the inter-group welded trusses 11 are connected to form a bottom fixed frame, as shown in the main beam frame 2; then, the connecting measuring frame 3 is fixed by bolts on the top of the main beam frame 2, and the extension amount of the threaded telescopic rod 13 in the connecting measuring frame 3 is adjusted, and then the adapting plate 14 is connected and screwed until the adapting plate 14 is close to the adapting plate 14. Tighten the shield tube wall, then install the third-level connecting frame 6, the second-level connecting frame 5, and the first-level connecting frame 4, adjust the extension length of the threaded telescopic rod 13 at the end, weld the connecting parts to the table 10, bolt the connecting plate surface in between, install the upper adaptation plate 14, adjust the threaded telescopic rod 13 fixing nut, adjust the torque, and then you can repair and remove and replace the tube wall. When it is necessary to replace a single connecting panel, loosen the screw fixing part 8 at the current panel connection or directly dismantle the lateral support structure other than the low-foot frame 1 and the main beam frame 2, remove the discarded tube wall and fill it with a new tube wall, and then install the lateral support assembly again.

[0057] The above description of the utility model in combination with the accompanying drawings is an exemplary description. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as the non-substantial improvements are made by adopting the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A dismantling protection bracket for shield segment reconstruction, characterized in that: The invention comprises a plurality of bracket groups, wherein a single bracket group comprises a low foot frame (1) and a main beam frame (2), wherein the low foot frame (1) and the main beam frame (2) are both square tubes with square cross-sections, two symmetrical connecting ends are arranged above the low foot frame (1), two connecting measuring frames (3) are connected to the top of the low foot frame (1), and a connecting measuring frame (3) is arranged above the main beam frame (2) for supporting the shield pipe wall at the top; A lateral support group is provided on the sides of the two main beam frames (2) and the two connecting measuring frames (3) that are away from each other; The top of the connecting measuring frame (3) and the top of the lateral support group are both provided with a screw fixing portion (8) for adjusting the length.

2. The dismantling protection bracket for shield segment reconstruction according to claim 1 is characterized in that: The screw fixing part (8) is a square tube with one side open. A threaded telescopic rod (13) and a plurality of adjusting bolts (12) are provided inside the screw fixing part (8). A layer of isolation steel plate is provided in the middle section of the screw fixing part (8). The two adjusting bolts (12) between the isolation steel plate and the port are movable bolts.

3. The dismantling protection bracket for shield segment reconstruction according to claim 1 is characterized in that: The lateral support group comprises a primary connecting frame (4), a secondary connecting frame (5), and a tertiary connecting frame (6); Two transverse connecting members (9) are arranged between the two main beam frames (2), and one transverse connecting member (9) is connected between the two connecting measuring frames (3); The opposite sides of the main beam frame (2) and the connecting frame (3) are connected to the primary connecting frame (4), the secondary connecting frame (5), and the tertiary connecting frame (6) in sequence from top to bottom, and the installation ends of the primary connecting frame (4), the secondary connecting frame (5), and the tertiary connecting frame (6) all include a screw fixing portion (8).

4. The dismantling protection bracket for shield segment reconstruction according to claim 3 is characterized in that: The first-level connecting frame (4) is connected to the middle section of the connecting measuring frame (3), and the transverse connecting piece (9) between the two first-level connecting frames (4) is flush with the first-level connecting frame (4); The secondary connecting frame (5) is connected to one side of the connecting position between the main beam frame (2) and the connecting frame (3), and the transverse connecting piece (9) between the two secondary connecting frames (5) is flush with the height of the secondary connecting frame (5); The three-stage connecting frame (6) is connected to one side of the middle section of the main beam frame (2), and the transverse connecting piece (9) between two three-stage connecting frames (6) is flush with the height of the three-stage connecting frame (6); The lengths of the primary connecting frame (4), the secondary connecting frame (5), and the tertiary connecting frame (6) increase step by step.

5. The dismantling protection bracket for shield segment reconstruction according to claim 4 is characterized in that: One end of the lateral support group away from the screw fixing portion (8) is connected to a connecting platen (10), and both ends of the transverse connecting member (9) are connected to a connecting platen (10); One end of the connecting platform (10) is a connecting plate, and the other end is a welding end; The transverse connecting member (9) is fixedly connected to the main beam frame (2) via two connecting platforms (10); The lateral connection group and the main beam frame (2) are fixedly connected via the connection platform (10).

6. The dismantling protection bracket for shield segment reconstruction according to claim 1 is characterized in that: A bottom supporting connecting frame (7) is provided at the bottom of the low-leg frame (1) for connecting the bottom moving parts.

7. The dismantling protection bracket for shield segment reconstruction according to claim 1 is characterized in that: Two inter-group welded trusses (11) are connected between two adjacent low-leg frames (1), and the inter-group welded trusses (11) are welded to the sides of the low-leg frames (1).

8. The dismantling protection bracket for shield segment reconstruction according to claim 1 is characterized in that: The two sides of the low-leg frame (1) include two groups of screw fixing parts (8), and the threaded telescopic rods (13) at both ends of the low-leg frame (1) extend downward.

9. The dismantling protection bracket for shield segment reconstruction according to claim 1 is characterized in that: One end of the screw of the screw fixing part (8) is connected to an adaptable plate (14), and one side of the adaptable plate (14) is in contact with the inner wall of the tunnel.

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