Shield tunneling machine starting receiving bracket

Abstract

The utility model belongs to the technical field of shield tunneling machine brackets, and discloses a shield tunneling machine starting receiving bracket which comprises two box beams which are arranged side by side in a spaced mode in the transverse direction, and a plurality of box columns are arranged between the two box beams in a rectangular array mode. The box beam and the box column or two transversely adjacent box columns are fixedly installed through a scissor-shaped supporting frame, the top face of the box beam and the top face of the box column are supported on the lower surface of an outer shield body of the shield tunneling machine in a jacking mode, the shield tunneling machine starting and receiving bracket aims at the shield tunneling machine with the diameter ranging from 14 meters to 17 meters, starting and receiving are both applicable, and the shield tunneling machine starting and receiving bracket is simple in structure, convenient to use and high in practicability. All components are welded through first-level welding seams, only connecting rod pieces of a box beam base need to be adjusted during later turnover use, the total weight is within 15 tons, the direct material loss of a single project can be controlled to be about one hundred thousand, the service life of the whole bracket is not shorter than 10 years, and therefore the comprehensive use cost is greatly reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of tunnel boring machine brackets, specifically relating to a tunnel boring machine launching and receiving bracket. Background Technology

[0002] The shield machine launching (receiving) bracket is the core support structure in the shield launching (receiving) stage. It is used to support the weight of the shield machine and its supporting equipment, ensuring that the shield machine launches precisely along the designed axis.

[0003] Currently used brackets are all welded integral brackets. Although they are sturdy and strong, they are not adjustable. During installation, each component is pre-embedded in the concrete base, and their dimensions are customized according to the model of the tunnel boring machine selected for the project. Therefore, after use, they are often sold as scrap at a low price and cannot be reused, which greatly increases the project budget and is a huge waste of resources because they cannot be flexibly reused. Therefore, it is necessary to design a reusable, easy-to-install, and highly versatile bracket that meets the actual needs of engineering construction to solve the above technical problems. Utility Model Content

[0004] The purpose of this utility model is to provide a shield machine launching (receiving) bracket, which aims to solve the technical problems existing in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A shield tunneling machine launching (receiving) bracket includes two box beams, which are arranged side by side with intervals along the transverse direction. A plurality of box columns are arranged in a rectangular array between the two box beams. The box beams and the box columns, or two transversely adjacent box columns, are fixedly installed by scissor-type support frames. The top surfaces of the box beams and the box columns abut against the lower surface of the shield body of the shield tunneling machine. Variable diameter strut structures are provided inside the box beams and the box columns near the top. The telescopic ends of each variable diameter strut structure extend out of the top surface of the box beam or the box column and abut against the lower surface of the negative ring segment of the shield tunneling machine. A trolley traveling frame is fixedly installed between the tops of the two box beams, and a shield tunneling machine trolley slides on the top of the trolley traveling frame.

[0007] In a preferred embodiment of this utility model, the box girder is a strip-shaped trapezoidal structure with a cross-section inclined to the center line of the outer shield of the tunnel boring machine, and its bottom is fixedly installed to the concrete base by pre-embedded bolts around its perimeter.

[0008] In a preferred embodiment of this utility model, the box column is a rectangular structure, with its bottom flush with the bottom of the box beam and resting on the top surface of the concrete base.

[0009] In a preferred embodiment of this utility model, the top surfaces of the box beam and the box column are both inclined surfaces, and the inclined surfaces are tangent to the circumferential surface of the outer shield of the tunnel boring machine.

[0010] In a preferred embodiment of this utility model, transverse diaphragms are provided inside the box beam and the box column near the top. Multiple variable-diameter strut structures are provided on the top of the transverse diaphragms of the box beam and correspond one-to-one with the positions of multiple longitudinal box columns. One variable-diameter strut structure is provided at the center of the top of the transverse diaphragm of the box column.

[0011] In a preferred embodiment of this utility model, the variable diameter strut structure includes a guide tube, which is fixedly installed on the top of the transverse diaphragm. Its open end is flush with the top surface of the box beam or the box column. A top rod is movably connected inside the guide tube. The top of the top rod extends out of the top of the guide tube through an adjusting rod placed inside and below it. A positioning pin is inserted into the outer wall of the box beam or the box column. The top rod is fixedly connected to the box beam or the box column through the positioning pin.

[0012] In a preferred embodiment of this utility model, the trolley traveling frame includes a box-shaped raised beam. The top of the box-shaped raised beam is parallel to the concrete base and is fixedly installed on the top of the box-shaped beam. A trolley track is fixedly installed on the top of the box-shaped raised beam along its extended length direction. Multiple reinforcing crossbeams are fixedly installed at equal intervals along the length direction between two box-shaped raised beams. The tunnel boring machine trolley slides between the tops of the two trolley tracks.

[0013] In a preferred embodiment of this utility model, two longitudinally adjacent box beams are fixedly installed by bolt assemblies.

[0014] The beneficial effects of this utility model are:

[0015] This utility model's shield tunneling machine launching (receiving) bracket is suitable for shield tunneling machines with diameters ranging from 14 meters to 17 meters. It is applicable to both launching and receiving, has strong versatility, and is flexible in turnover. All components are welded using first-class welds. When reusing the machine later, only the connecting rods of the box girder base need to be adjusted. The total weight is within 15 tons, and the direct material loss of a single project can be controlled to around 100,000. The service life of the entire bracket should not be less than 10 years, which greatly reduces the overall cost of use. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 for Figure 1A magnified structural diagram at point A;

[0018] Figure 3 This is a schematic diagram of the variable diameter strut structure of this utility model when it is ejected;

[0019] Figure 4 for Figure 3 A magnified structural diagram at point B;

[0020] Figure 5 This is a side view of the present invention;

[0021] Figure 6 This is a top view of the present invention.

[0022] The attached diagram includes the following reference numerals: 1. Box girder; 11. Horizontal diaphragm; 12. Vertical diaphragm; 2. Scissor-type support frame; 3. Box column; 4. Trolley traveling frame; 41. Box-type raised beam; 42. Reinforcing crossbeam; 43. Trolley track; 5. Variable diameter strut structure; 51. Top rod; 52. Positioning pin; 53. Guide tube; 54. Adjusting rod; 6. Longitudinal strut. Detailed Implementation

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0024] Example:

[0025] Please refer to Figure 1-6 As shown, an embodiment of this application provides a shield machine launching (receiving) bracket, including two box beams 1, which are arranged side by side with intervals along the transverse direction. Multiple box columns 3 are arranged in a rectangular array between the two box beams 1. The box beams 1 and the box columns 3, or two transversely adjacent box columns 3, are fixedly installed by scissor-type support frames 2. The top surfaces of the box beams 1 and the box columns 3 are supported on the lower surface of the shield body of the shield machine. Variable diameter strut structures 5 are provided inside the box beams 1 and the box columns 3 near the top. The telescopic ends of each variable diameter strut structure 5 extend out of the top surface of the box beams 1 or the box columns 3 and support the lower surface of the shield machine's negative ring segment. A trolley traveling frame 4 is fixedly installed between the tops of the two box beams 1, and a shield machine trolley runs on the top of the trolley traveling frame 4.

[0026] In a preferred embodiment of this utility model, the top surfaces of the box beam 1 and the box column 3 are both inclined surfaces, which are tangent to the circumferential surface of the outer shield of the tunnel boring machine. By setting the inclined surfaces of the top surfaces of the box beam 1 and the box column 3 in the same transverse plane, a structure with an approximately arc-shaped top surface is formed, thereby effectively supporting the circular outer contour of the tunnel boring machine and improving the stability of the load-bearing structure.

[0027] In a preferred embodiment of the present invention, a transverse diaphragm 11 is provided inside the box beam 1 and the box column 3 near the top. Multiple variable diameter strut structures 5 are provided on the top of the transverse diaphragm 11 of the box beam 1 and correspond one-to-one with the positions of multiple longitudinal box columns 3. A variable diameter strut structure 5 is provided at the center of the top of the transverse diaphragm 11 of the box column 3.

[0028] In a preferred embodiment of this utility model, the box column 3 is a rectangular structure, with its bottom flush with the bottom of the box beam 1, and rests on the top surface of the concrete base.

[0029] Specifically, such as Figure 1 , 3 As shown in Figures 5 and 6, this bracket is provided in multiple sets. Each set of brackets is fastened together with the box beams 1 that are closely attached to each other by bolts. This bracket provides stable and firm support to the bottom of the outer shield of the tunnel boring machine through the box beams 1 on both sides and the multiple box columns 3 arranged in a rectangular array in the middle. The box columns 3 are connected in the transverse direction, and the box beams 1 and box columns 3 are connected by scissor-type support frames 2. The longitudinal direction is connected by longitudinal struts 6 to form a complete whole, which further improves the structural strength of this bracket, so that the stress is more uniform and the structure is more solid and reliable. In addition, to further strengthen the strength of each component, vertical partitions 12 are also installed inside the box beams 1 and box columns 3 for reinforcement.

[0030] Meanwhile, each box column 3 of this bracket is equipped with a variable diameter strut structure 5 at its inner top. At the inner top of the box beam 1, along the length direction corresponding to each box column 3, multiple variable diameter strut structures 5 are also provided. By adjusting the length of the top rod 51 of the variable diameter strut structure 5 extending out of the top surface of the box beam 1 and the box column 3, it can adapt to the outer diameter of different models of tunnel boring machines and compensate for the difference between the outer shield body and the negative ring segment diameter of the same tunnel boring machine, thereby providing more stable support for the tunnel boring machine.

[0031] Secondly, by fixing the trolley traveling frame 4 between the tops of the two box beams 1 of this bracket, the trolley traveling frame 4 carries the shield machine trolley, thus enabling the shield machine to move forward smoothly;

[0032] This bracket is suitable for tunnel boring machines with diameters ranging from 14 meters to 17 meters, applicable to both launching and receiving machines. It is highly versatile and flexible in its use. All components are welded using first-class welds. When reusing the machine, only the connecting rods of the box girder base need to be adjusted. The total weight is within 15 tons, and the direct material loss for a single project can be controlled to around 100,000 RMB. The overall service life of the bracket should be no less than 10 years, which greatly reduces the overall cost of use.

[0033] In a preferred embodiment of this utility model, the box girder 1 is a strip-shaped trapezoidal structure with a cross-section inclined to the center line of the outer shield of the tunnel boring machine. Its bottom is fixed to the concrete base by pre-embedded bolts around its perimeter. By raising the steel plates at the bottom of the two box girder 1, the overall height of the bracket can be adjusted, thereby allowing for flexible adjustment according to the construction site environment.

[0034] In a preferred embodiment of this utility model, the variable diameter strut structure 5 further includes a guide tube 53, which is fixedly installed on the top of the transverse partition 11. Its open end is flush with the top surface of the box beam 1 or the box column 3. A top rod 51 is movably connected inside the guide tube 53. The top of the top rod 51 extends out of the top of the guide tube 53 by placing an adjusting rod 54 inside the guide tube 53 and below it. A positioning pin 52 is inserted into the outer wall of the box beam 1 or the box column 3. The top rod 51 is fixedly connected to the box beam 1 or the box column 3 through the positioning pin 52.

[0035] Specifically, such as Figure 2 , 4 As shown, when not in use, the top rod 51 of the variable diameter strut structure 5 is hidden inside the box beam 1 or box column 3. When needed, it is taken out, and the adjustment rod 54 of the required increase in height is inserted. Then the top rod 51 is put back and fixed by the positioning pin 52, thereby realizing the operation of adjusting the extension of the top rod 51. Both the top rod 51 and the adjustment rod 54 are made of square steel, which is sturdy, durable and strong.

[0036] In a preferred embodiment of this utility model, the trolley traveling frame 4 further includes a box-shaped raised beam 41. The top of the box-shaped raised beam 41 is parallel to the concrete base and is fixedly installed on the top of the box-shaped beam 1. A trolley track 43 is fixedly installed on the top of the box-shaped raised beam 41 along its extended length direction. Multiple reinforcing crossbeams 42 are fixedly installed at equal intervals between the two box-shaped raised beams 41 along their length direction. The tunnel boring machine trolley slides between the tops of the two trolley tracks 43.

[0037] Specifically, such as Figure 1As shown, a box-shaped support beam 41 is added to the top of the box-shaped beam 1. By setting the bottom of the box-shaped support beam 41 as an inclined surface to fit with the top inclined surface of the box-shaped beam 1, its top surface is made horizontal, which facilitates the installation of the trolley track 43 and provides a good working environment for the tunnel boring machine trolley. At the same time, in order to match tunnel boring machines of different models and sizes, a shim is added between the box-shaped beam 1 and the box-shaped support beam 41. By pre-designing the thickness, shape and installation position of the shim, the height and spacing of the two box-shaped support beams 41 are controlled, thereby adapting to the structural dimensions of the equipment.

[0038] In a preferred embodiment of this utility model, two longitudinally adjacent box beams 1 are further fixedly installed by bolt assemblies.

[0039] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A shield machine launching and receiving carriage, characterized by: The utility model provides a shield machine support structure, including two box beams (1), two the box beam (1) is intervalled side by side along the transverse, multiple box columns (3) are arranged between two the box beam (1) rectangular array, the box beam (1) with the box column (3) or two transversely adjacent the box column (3) between all through the shears type support frame (2) fixed installation, the top surface of the box beam (1) and the box column (3) are all supported on the lower surface of shield machine outer shield body, the inside of the box beam (1) and the box column (3) and close to the top all are provided with the variable diameter support rod structure (5), the telescopic end of each the variable diameter support rod structure (5) is set out the top surface of the box beam (1) or the box column (3) and is supported on the lower surface of shield machine negative ring pipe piece, the top of trolley running frame (4) is fixedly installed between two the box beam (1) top, the top of shield machine trolley is slid on trolley running frame (4).

2. The shield machine launching and receiving carrier according to claim 1, characterized in that: The box beam (1) is strip-shaped and has a trapezoidal cross-section inclined to the center line of the shield machine outer shield body, and the bottom thereof is fixedly installed on the concrete base by embedded bolts.

3. The shield machine launching and receiving cradle according to claim 2, characterized in that: The box column (3) is rectangular, and the bottom thereof is flush with the bottom of the box beam (1) and rests on the top surface of the concrete base.

4. The shield machine launching and receiving cradle according to claim 3, characterized in that: The top surface of the box beam (1) and the box column (3) is an inclined surface tangent to the circumferential surface of the shield machine outer shield body.

5. The shield machine launching and receiving cradle according to claim 1, characterized in that: The inside of the box beam (1) and the box column (3) close to the top is provided with a transverse partition plate (11), and a plurality of the variable diameter support rod structures (5) are arranged on the top of the transverse partition plate (11) of the box beam (1) and correspond to the plurality of the box columns (3) in the longitudinal direction one by one, and one variable diameter support rod structure (5) is arranged on the top of the transverse partition plate (11) of the box column (3) in the center.

6. The shield machine launching and receiving cradle according to claim 5, characterized in that: The variable diameter support rod structure (5) comprises a guide pipe (53) fixedly installed on the top of the transverse partition plate (11), and the opening end thereof is flush with the top surface of the box beam (1) or the box column (3); a top rod (51) movably connected in the guide pipe (53); and an adjusting rod (54) placed in the guide pipe (53) below the top rod (51) and extending out of the top of the guide pipe (53); and a positioning pin (52) inserted into the outer wall of the box beam (1) or the box column (3), and the top rod (51) is fixedly connected with the box beam (1) or the box column (3) through the positioning pin (52).

7. The shield machine launching and receiving cradle of claim 4, wherein: The trolley running frame (4) comprises a box type heightening beam (41), the top of the box type heightening beam (41) is parallel to the concrete base and is fixedly installed on the top of the box beam (1), a trolley track (43) is fixedly installed on the top of the box type heightening beam (41) in the direction of the extension length, a plurality of reinforcing cross beams (42) are fixedly installed between the two box type heightening beams (41) in the direction of the length at equal intervals, and the shield machine trolley slides between the tops of the two trolley tracks (43).

8. The shield machine launching and receiving cradle of claim 1, wherein: Two longitudinally adjacent box beams (1) are fixedly installed through a bolt assembly.

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