Turnover assembly type shield tunneling machine reaction frame

Abstract

The utility model belongs to the field of reaction frames, and discloses a turnover assembly type shield tunneling machine reaction frame, the front face of the turnover assembly type shield tunneling machine reaction frame abuts against the working face of an annular shield tunneling machine jack set, and the turnover assembly type shield tunneling machine reaction frame comprises two horizontal cross beams, two first vertical beams, two second vertical beams, two first arc-shaped beams, two second arc-shaped beams and three adjusting beams. The two first arc-shaped beams are symmetrically arranged, the two second arc-shaped beams are symmetrically arranged, the two horizontal cross beams are symmetrically arranged, and adjusting beams are detachably and fixedly arranged between the two horizontal cross beams. The two horizontal cross beams, the two first vertical beams, the two second vertical beams, the two first arc-shaped beams, the two second arc-shaped beams and the three adjusting beams are all arranged to be standard unit modules of independent box-type beam structures; the standardized modules are transported to a construction site in batches, and therefore the technical problems that in the prior art, the engineering period is long, the overall manufacturing, installing and welding work is tedious, the technical difficulty is large, the overall material weight is large, and moving is difficult are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction frames, in particular to a rotatable assembled reaction frame for a shield machine. Background Art

[0002] The core function of the shield machine reaction frame is to provide reaction force for the shield machine to ensure that the shield machine remains stable during excavation. The reaction frame is fixed to the tunnel entrance through connecting nuts to provide the necessary support and reaction force for the shield machine, ensuring that the shield machine will not be displaced or tilted due to stratum pressure during excavation.

[0003] The reaction frame of the shield machine is mainly composed of a gantry, ring beam, straight braces, diagonal braces, diagonal brace connecting seats and embedded steel plates. The working process of the reaction frame is to transfer the ground resistance exerted on the shield machine to the ring beam, and then to the gantry by the ring beam, and finally to the structural bottom plate and embedded steel plates through straight braces and diagonal braces, and finally return to the stratum to form a reaction force.

[0004] In shield machine construction, the importance of the reaction frame is self-evident. It not only provides the necessary support and reaction force for the shield machine, but also ensures the safety and stability of tunnel construction. Through the support and reaction force of the reaction frame, the shield machine can smoothly excavate under complex geological conditions, avoiding construction risks caused by changes in stratum pressure.

[0005] In the prior art, the door frame and the ring beam of the reaction frame are mostly connected together by welding, and the door frame and the embedded steel plate are connected after the main structure of the reaction frame is formed to ensure the stability and safety of the reaction frame. However, due to the technical characteristics of the above-mentioned welded structure, the existing reaction frame needs to be constructed on-site according to the project requirements, and the on-site welding is produced. Moreover, a set of reaction frames can only serve one project. Its huge size and weight limit its versatility and recycling capacity. After the project is completed, it is often discarded, resulting in a huge waste of resources, which does not meet the requirements of national sustainable development. Therefore, it is urgent to design a universal and easy-to-turnover reaction frame to deal with the above-mentioned technical problems. Utility Model Content

[0006] The utility model aims to provide a rotatable assembled shield machine reaction frame, aiming to solve the above-mentioned technical problems existing in the prior art.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A rotatable assembled shield machine reaction frame, the front of which conflicts with the working surface of the shield machine jack group in a circular shape, comprising two horizontal beams, two No. 1 vertical beams, two No. 2 vertical beams, two No. 1 arc beams, two No. 2 arc beams and three adjustment beams, the two horizontal beams are symmetrically arranged, and the adjustment beam is detachably fixedly installed between the two, the two No. 1 vertical beams are symmetrically arranged, and the tops are detachably fixedly installed on the bottoms of the two horizontal beams and away from one end of the adjustment beam, the adjustment beam is detachably fixedly installed between the No. 1 vertical beam and the No. 2 vertical beam, the No. 2 vertical beam and the No. 1 vertical beam are mirror images of each other, the bottom of the No. 2 vertical beam is detachably fixedly connected to an embedded part, and the embedded part is buried at the bottom of the inner wall of the foundation pit;

[0009] The top and bottom of the horizontal beam are respectively fixedly connected with a No. 2 oblique connecting plate and a No. 1 oblique connecting plate, and the No. 2 oblique connecting plate and the No. 1 oblique connecting plate are staggered in the vertical direction. The left and right sides of the No. 1 vertical beam are respectively fixedly connected with a No. 3 oblique connecting plate and a No. 4 oblique connecting plate, and the No. 3 oblique connecting plate and the No. 4 oblique connecting plate are staggered in the horizontal direction.

[0010] The No. 1 curved beam is detachably fixedly installed between the adjacent No. 1 oblique connecting plate and the No. 4 oblique connecting plate, the No. 4 oblique connecting plate of the No. 2 vertical beam is detachably fixedly installed to one end of the No. 2 curved beam, and the other end of the No. 2 curved beam is detachably fixedly installed to the embedded part, the No. 1 curved beam and the No. 2 curved beam are exactly the same, the centers of the curved edges of the two No. 1 curved beams and the two No. 2 curved beams coincide, and their shapes match the shape of the shield machine jack group.

[0011] In a preferred embodiment of the utility model, the adjacent horizontal beam and the first vertical beam are rotated 180 degrees in the vertical direction and the horizontal direction respectively, and the first arc beam is detachably fixedly installed between the second oblique connecting plate and the third oblique connecting plate adjacent to the two;

[0012] The second vertical beam is rotated 180 degrees in the horizontal direction, and the second arc beam is detachably fixedly installed between the second oblique connecting plate and the third oblique connecting plate adjacent to the two;

[0013] The dimensions of the No. 1 arc beam and the adjusting beam match the diameter dimensions of the shield machine jack group.

[0014] In a preferred embodiment of the utility model, the horizontal beam, the first vertical beam, and the first arc beam are all box beam structures, each including two front and rear panels, two upper and lower lining plates, and two closing plates at both ends, the two lining plates and the two closing plates are welded between the two panels, and there is a gap between the lining plate and the edge of the panel to form an installation groove.

[0015] In a preferred embodiment of the utility model, a longitudinal connecting plate is welded at one end of the installation groove away from the adjusting beam, and the longitudinal connecting plate is fastened to the sealing plate at the top of the No. 1 vertical beam by a bolt assembly.

[0016] In a preferred embodiment of the present utility model, the first oblique connecting plate, the second oblique connecting plate, the third oblique connecting plate, and the fourth oblique connecting plate are respectively welded in the corresponding installation grooves.

[0017] In a preferred embodiment of the utility model, the two sealing plates of the No. 1 arc beam are respectively fastened to the No. 1 oblique connecting plate, the No. 4 oblique connecting plate or the No. 2 oblique connecting plate, the No. 3 oblique connecting plate through the bolt assembly.

[0018] In a preferred embodiment of the present utility model, the horizontal crossbeam, the cover plate of the first vertical beam and the cover plate of the adjusting beam are fastened together by the bolt assembly.

[0019] In a preferred embodiment of the present utility model, reinforcing cross beams are evenly distributed and detachably fixedly installed between the back side of the reaction frame and the side wall of the foundation pit.

[0020] The beneficial effects of the utility model are:

[0021] 1. The utility model sets two horizontal beams, two No. 1 vertical beams, two No. 2 vertical beams, two No. 1 arc beams, two No. 2 arc beams and three adjustment beams as standardized unit modules of independent box beam structures. Each standardized unit module is produced in the factory according to the standardized process of the drawings to ensure the firmness and accuracy of its structure. Each standardized module is transported to the construction site in batches and fixedly installed at the bottom of the foundation pit from bottom to top, thereby effectively solving the technical problems existing in the prior art such as long engineering cycle, cumbersome overall production and installation welding work, high technical difficulty, and heavy overall material weight and difficulty in moving. Through the standardized unit module splicing process, rapid transportation, hoisting and splicing can be achieved, which can effectively improve the progress of the project and reduce the difficulty of engineering construction. After use, it can be disassembled, decomposed and transported to achieve repeated use, effectively avoid waste of resources, and save the engineering cost of subway construction enterprises. It has a simple and clever structure, is simple and convenient to install, and is flexible and convenient to turn around. It can be recycled and is worthy of vigorous promotion in the industry.

[0022] 2. The utility model assembles the horizontal beam and the vertical beam by rotating them 180 degrees during the installation process, thereby switching the size specifications of the reaction beam to match the jack groups of shield machines of different sizes and models for use. There is no need for on-site production or waiting for processing, and the project can be immediately transferred to the next project site for construction after completion. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the structure of each component of the utility model;

[0025] Figure 3 It is a schematic diagram of the full cross-section structure of the horizontal beam;

[0026] Figure 4 This is a schematic diagram of the full cross-section structure of the No. 1 vertical beam;

[0027] Figure 5 It is a schematic diagram of the assembly structure after the horizontal beam and No. 1 are rotated vertically;

[0028] Figure 6 It is a schematic diagram of the working structure of the utility model.

[0029] Figure numerals; among them, 1, horizontal beam; 101, panel; 102, lining plate; 103, sealing plate; 104, longitudinal connecting plate; 105, oblique connecting plate No. 1; 106, oblique connecting plate No. 2; 107, mounting groove; 2, adjusting beam; 3, arc beam No. 1; 4, vertical beam No. 1; 401, oblique connecting plate No. 3; 402, oblique connecting plate No. 4; 5, vertical beam No. 2; 6, shield machine jack group; 7, embedded parts; 8, bolt assembly; 9, arc beam No. 2; 10, reinforcing beam; 11, foundation pit. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the utility model will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute a limitation of the utility model.

[0031] Example:

[0032] like Figure 1-6As shown, the present embodiment provides a revolvable assembled shield machine reaction frame, the front of which conflicts with the working surface of the shield machine jack group 6 in a circular shape, and includes two horizontal beams 1, two No. 1 vertical beams 4, two No. 2 vertical beams 5, two No. 1 arc beams 3, two No. 2 arc beams 9 and three adjustment beams 2, the two horizontal beams 1 are symmetrically arranged, and the adjustment beam 2 is detachably fixedly installed between the two, the two No. 1 vertical beams 4 are symmetrically arranged, and the tops are detachably fixedly installed on the bottoms of the two horizontal beams 1 and away from one end of the adjustment beam 2, the adjustment beam 2 is detachably fixedly installed between the No. 1 vertical beam 4 and the No. 2 vertical beam 5, the No. 2 vertical beam 5 and the No. 1 vertical beam 4 are mirror images of each other, the bottom of the No. 2 vertical beam 5 is detachably fixedly connected to the embedded part 7, and the embedded part 7 is buried at the bottom of the inner wall of the foundation pit 11;

[0033] The top and bottom of the horizontal beam 1 are respectively fixedly connected with a second oblique connecting plate 106 and a first oblique connecting plate 105, which are staggered in the vertical direction. The left and right sides of the first vertical beam 4 are respectively fixedly connected with a third oblique connecting plate 401 and a fourth oblique connecting plate 402, which are staggered in the horizontal direction.

[0034] A No. 1 curved beam 3 is detachably fixedly installed between the adjacent No. 1 oblique connecting plate 105 and the No. 4 oblique connecting plate 402, the No. 4 oblique connecting plate 402 of the No. 2 vertical beam 5 is detachably fixedly installed with one end of the No. 2 curved beam 9, and the other end of the No. 2 curved beam 9 is detachably fixedly installed with the embedded part 7, the No. 1 curved beam 3 and the No. 2 curved beam 9 are exactly the same, the centers of the curved edges of the two No. 1 curved beams 3 and the two No. 2 curved beams 9 coincide, and their shapes match the shape of the shield machine jack group 6.

[0035] Specifically, Figure 1-2As shown, in this embodiment, two horizontal beams 1, two No. 1 vertical beams 4, two No. 2 vertical beams 5, two No. 1 arc beams 3, two No. 2 arc beams 9 and three adjusting beams 2 are all set as standardized unit modules of independent box beam structures. Each standardized unit module is produced in the factory according to the standardized process of the drawings to ensure the firmness and accuracy of its structure. By transporting each standardized module to the construction site in batches and fixing them on the bottom of the foundation pit 11 from bottom to top, the technical difficulties existing in the prior art such as long engineering cycle, cumbersome overall production and installation welding work, high technical difficulty, and heavy overall material weight and difficulty in moving are effectively solved. Through the standardized unit module splicing process, rapid transportation and hoisting splicing can be achieved, which can effectively improve the progress of the project and reduce the difficulty of engineering construction. After use, it can be disassembled, decomposed and transported to achieve repeated use, effectively avoid waste of resources, and save the engineering cost of subway construction companies. It has a simple and clever structure, is easy and convenient to install, and is flexible and convenient to turn around. It can be recycled and is worthy of promotion in the industry.

[0036] In a preferred embodiment of the present invention, further, the adjacent horizontal beam 1 and the first vertical beam 4 are rotated 180 degrees in the vertical direction and the horizontal direction respectively, and the first arc beam 3 is detachably fixedly installed between the second oblique connecting plate 106 and the third oblique connecting plate 401 adjacent to the two;

[0037] The second vertical beam 5 is rotated 180 degrees in the horizontal direction, and the second curved beam 9 is detachably fixedly installed between the second oblique connecting plate 106 and the third oblique connecting plate 401 adjacent to each other;

[0038] The dimensions of the first curved beam 3 and the adjusting beam 2 match the diameter dimensions of the shield machine jack group 6 .

[0039] Specifically, Figure 3-5 As shown, in order to further improve the universal performance and turnover characteristics of the reaction frame, so that it can be used with shield machines of more diameter models, the overall length and width of the reaction frame are realized by changing the size of the adjustment beam 2. At the same time, the shape and size of the arc beam (yuanbao beam) are customized according to the diameter size of the shield machine jack group 6, and the shield machine jack group 6 is matched in turn to provide excellent reaction force support function;

[0040] Among them, in order to simplify the operation and realize multiple uses of one frame, oblique connecting plates (including: No. 1 oblique connecting plate 105, No. 2 oblique connecting plate 106, No. 3 oblique connecting plate 401, No. 4 oblique connecting plate 402) are respectively welded at different positions on the top and bottom sides of the horizontal beam 1 and the left and right sides of the vertical beam (including: No. 1 vertical beam 4, No. 2 vertical beam 5), and the arc beams are connected by the oblique connecting plates as oblique supports. While reinforcing the overall rigidity of the reaction frame, it meets the demand for the full coverage tunnel boring machine jack group to provide a reaction surface. During the installation process, the horizontal beam 1 and the vertical beam are rotated 180 degrees for assembly. In this way, the size specifications of the reaction beam are switched to match the shield machine jack groups 6 of different sizes and models for use. There is no need for on-site production or waiting for processing. After the project is completed, it can be immediately transferred to the next project site for construction.

[0041] In a preferred embodiment of the utility model, further, the horizontal beam 1, the No. 1 vertical beam 4, and the No. 1 arc beam 3 are all box beam structures, and all include two front and rear panels 101, two upper and lower lining plates 102, and two closing plates 103 at both ends. The two lining plates 102 and the two closing plates 103 are welded between the two panels 101, and there is a gap between the lining plates 102 and the edges of the panels 101 to form an installation groove 107.

[0042] In a preferred embodiment of the present invention, further, a longitudinal connecting plate 104 is welded at one end of the installation groove 107 away from the adjusting beam 2, and the longitudinal connecting plate 104 is fastened to the top sealing plate 103 of the first vertical beam 4 by a bolt assembly 8.

[0043] In a preferred embodiment of the present utility model, further, the first oblique connecting plate 105 , the second oblique connecting plate 106 , the third oblique connecting plate 401 , and the fourth oblique connecting plate 402 are respectively welded in the corresponding installation grooves 107 .

[0044] In a preferred embodiment of the utility model, further, the two closing plates 103 of the No. 1 arc beam 3 are respectively fastened to the No. 1 oblique connecting plate 105, the No. 4 oblique connecting plate 402 or the No. 2 oblique connecting plate 106, the No. 3 oblique connecting plate 401 by bolt assemblies 8.

[0045] In a preferred embodiment of the present utility model, further, the sealing plate 103 of the horizontal beam 1 , the first vertical beam 4 and the sealing plate 103 of the adjusting beam 2 are fastened and connected by a bolt assembly 8 .

[0046] Specifically, Figure 2-5As shown, by sinking and welding the two lining plates 102 in the box beam structure of each standardized module unit to the middle of the box beam, an installation groove 107 structure with a certain installation space is formed, so that the operator's hands can easily enter the installation groove 107 to fasten and connect the components through the bolt assembly 8, thereby reducing the splicing installation time and difficulty. Secondly, this design can reduce the installation gap of the reaction frame, which is more beautiful and more integrated as a whole.

[0047] In a preferred embodiment of the present invention, further, a reinforcing crossbeam 10 is evenly distributed and detachably fixedly installed between the back of the reaction frame and the side wall of the foundation pit 11, as shown in FIG. Figure 6 As shown, by providing a detachable reinforcing cross beam 10 and producing and circulating it in a standard modular manner, the installation rate of the reaction frame can be further improved, thereby further improving the progress of the project, and it can also be recycled to meet the requirements of sustainable development.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rotatable assembled shield machine reaction frame, the front face of which contacts with the working face of a circular shield machine jack assembly (6), characterized in that: The invention comprises two horizontal beams (1), two first vertical beams (4), two second vertical beams (5), two first arc-shaped beams (3), two second arc-shaped beams (9) and three adjusting beams (2), wherein the two horizontal beams (1) are symmetrically arranged, and the adjusting beam (2) is detachably fixedly installed between the two horizontal beams (1), and the tops of the two first vertical beams (4) are detachably fixedly installed at the bottoms of the two horizontal beams (1) and away from one end of the adjusting beam (2), and the adjusting beam (2) is detachably fixedly installed between the first vertical beam (4) and the second vertical beam (5), and the second vertical beam (5) and the first vertical beam (4) are mirror images of each other, and the bottom of the second vertical beam (5) is detachably fixedly connected to an embedded part (7), and the embedded part (7) is buried at the bottom of the inner wall of the foundation pit (11); The top and bottom of the horizontal beam (1) are respectively fixedly connected with a second oblique connecting plate (106) and a first oblique connecting plate (105), and the second oblique connecting plate (106) and the first oblique connecting plate (105) are staggered in the vertical direction; the left and right sides of the first vertical beam (4) are respectively fixedly connected with a third oblique connecting plate (401) and a fourth oblique connecting plate (402), and the third oblique connecting plate (401) and the fourth oblique connecting plate (402) are staggered in the horizontal direction; The first curved beam (3) is detachably fixedly installed between the adjacent first oblique connecting plate (105) and the fourth oblique connecting plate (402), the fourth oblique connecting plate (402) of the second vertical beam (5) is detachably fixedly installed with one end of the second curved beam (9), the other end of the second curved beam (9) is detachably fixedly installed with the embedded part (7), the first curved beam (3) and the second curved beam (9) are completely identical, the centers of the arcuate edges of the two first curved beams (3) and the two second curved beams (9) coincide, and their shapes match the shape of the shield machine jack group (6).

2. The revolving assembled shield machine reaction frame according to claim 1 is characterized in that: The adjacent horizontal beam (1) and the first vertical beam (4) are rotated 180 degrees in the vertical direction and the horizontal direction respectively, and the first arc beam (3) is detachably fixedly installed between the second oblique connecting plate (106) and the third oblique connecting plate (401) adjacent to the two; The second vertical beam (5) is rotated 180 degrees in the horizontal direction, and the second arc beam (9) is detachably fixedly installed between the second oblique connecting plate (106) and the third oblique connecting plate (401) adjacent to each other; The dimensions of the first arc beam (3) and the adjusting beam (2) match the diameter dimensions of the shield machine jack group (6).

3. The revolvable assembled shield machine reaction frame according to claim 2 is characterized in that: The horizontal crossbeam (1), the first vertical beam (4), and the first arc-shaped beam (3) are all box-type beam structures, and each comprises two front and rear panels (101), two upper and lower lining plates (102), and two closing plates (103) at both ends. The two lining plates (102) and the two closing plates (103) are welded between the two panels (101), and a gap exists between the lining plates (102) and the edges of the panels (101) to form an installation groove (107).

4. The revolving assembled shield machine reaction frame according to claim 3 is characterized in that: A longitudinal connecting plate (104) is welded at one end of the installation groove (107) away from the adjusting beam (2), and the longitudinal connecting plate (104) is fastened to the sealing plate (103) at the top of the first vertical beam (4) via a bolt assembly (8).

5. The rotatable assembled shield machine reaction frame according to claim 4 is characterized in that: The first oblique connecting plate (105), the second oblique connecting plate (106), the third oblique connecting plate (401), and the fourth oblique connecting plate (402) are respectively welded in the corresponding installation grooves (107).

6. The rotatable assembled shield machine reaction frame according to claim 5, characterized in that: The two sealing plates (103) of the first curved beam (3) are respectively fastened to the first oblique connecting plate (105), the fourth oblique connecting plate (402) or the second oblique connecting plate (106), and the third oblique connecting plate (401) via the bolt assembly (8).

7. The rotatable assembled shield machine reaction frame according to claim 6, characterized in that: The horizontal crossbeam (1), the sealing plate (103) of the first vertical beam (4), and the sealing plate (103) of the adjustment beam (2) are fastened together by means of the bolt assembly (8).

8. The rotatable assembled shield machine reaction frame according to claim 1, characterized in that: Reinforced cross beams (10) are evenly distributed and detachably fixedly installed between the back side of the reaction frame and the side wall of the foundation pit (11).

Images