Modularized shield launching reaction frame and construction method thereof

Abstract

The invention discloses a modularized shield launching reaction frame and a construction method thereof, the modularized shield launching reaction frame mainly comprises a main body ring integrally in a circular ring shape, a plurality of fixed rods in a circumferential array are mounted on the outer arc surface of the main body ring, sliding rods are slidably mounted on the exteriors of the plurality of fixed rods, right-angle seats are mounted at the outer ends of the plurality of sliding rods, and the right-angle seats are mounted on the outer arc surface of the main body ring. Outward-extending rods are slidably mounted on the two sides of the outer portions of the right-angle bases correspondingly. The device has the advantages that the multiple first fixing columns in the circumferential array are installed on the outer arc face of the main body ring, the multiple fixing rods in the circumferential array are installed outside the main body ring, the fixing rods are installed on the first fixing columns at different positions, the positions of the fixing rods can be adjusted, meanwhile, the sliding rods are installed outside the fixing rods in a sliding mode, and the sliding rods can slide on the outer arc face of the main body ring. And a right-angle seat is installed at the outer end of the sliding rod, overhanging rods are installed on the two sides of the right-angle seat in a sliding mode, and when the device is used, by adjusting the positions of the fixed rod, the sliding rod and the overhanging rods, the device can be suitable for shield tunneling machines of various sizes.

Description

Technical Field

[0001] The invention relates to the technical field of shield construction, in particular to a modular shield starting reaction frame and a construction method thereof. Background Art

[0002] At present, most underground tunnel projects are constructed by shield method. When shield construction is started, a shield starting reaction frame needs to be set up. The shield starting reaction frame is one of the components of the shield machine. Its function is to support the starting end of the shield machine and transmit the starting reaction force to the foundation. Specifically, the shield starting reaction frame reduces the starting reaction force of the shield machine construction by applying a relatively reverse force during the shield starting stage, so that it will not cause damage to the buildings and underground pipelines in or around the tunnel.

[0003] The existing shield starting reaction frame has a fixed size and can only adapt to the construction of a certain shield machine project with a fixed diameter size. It is difficult to reuse, which not only increases the construction cost, but also causes great waste, and the storage and transportation of the device are difficult. Based on this, the present application proposes a modular shield starting reaction frame and a construction method thereof, which realizes the scalability of the size of the shield starting reaction frame, improves the applicability and reusability of the reaction frame's use size, reduces construction costs, facilitates the storage and transportation of the device, and well solves the above-mentioned problems. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a modular shield starting reaction frame and a construction method thereof to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0006] (II) Technical solution

[0007] In order to solve the above-mentioned related problems and achieve the desired objectives, the present invention provides the following technical solutions: a modular shield starting reaction frame, including a main body ring in a circular ring shape as a whole, a plurality of fixed rods in a circular array are installed on the outer arc surface of the main body ring, sliding rods are slidably installed on the outside of the plurality of fixed rods, right-angle seats are installed on the outer ends of the plurality of sliding rods, and outrigger rods are slidably installed on both sides of the outside of the plurality of right-angle seats, and four L-shaped assembly plates in a circular array are installed on the inner arc surface of the main body ring, arc-shaped assembly plates are installed on the outside of the four L-shaped assembly plates, and a plurality of through holes in a circular array are opened on the outside of the four arc-shaped assembly plates, an assembly seat is installed on any of the through holes, and support rods are installed on the plurality of assembly seats, and the outer ends of the plurality of support rods are inserted into rock cracks.

[0008] Preferably, arc plates are installed on both sides of one end of the outer side of the plurality of fixing rods, and the outer arc surface of the main body ring is installed with a plurality of first fixing columns in a circular array, which respectively pass through two arc plates, and nuts are installed on the external threads of the first fixing columns.

[0009] Preferably, the inner arc surface of the main body ring is installed with four second fixing columns in a circumferential array, which respectively penetrate four L-shaped assembly plates, and nuts are threadedly installed on the outer parts of the four second fixing columns.

[0010] Preferably, the outer surfaces of the plurality of fixing rods are provided with scale grooves.

[0011] Preferably, the plurality of fixed rods are all U-shaped as a whole, and threaded rods are rotatably installed inside them. The plurality of threaded rods are parallel to the fixed rods and respectively pass through the plurality of sliding rods, and the two are threadedly matched. Hand wheels are installed at the outer ends of the plurality of threaded rods.

[0012] Preferably, sliding grooves are provided on both sides of the exterior of the plurality of right-angle seats, notches are provided on the inner walls of the plurality of sliding grooves, threaded columns are installed at one end of the exterior of the plurality of extending rods, which respectively pass through the plurality of notches, and nuts are threadedly installed on the exterior of the plurality of threaded columns.

[0013] Preferably, one side of the outer surface of the multiple L-shaped assembly plates is provided with a multiple uniformly arrayed assembly holes, the middle position of the inner arc surface of the multiple arc-shaped assembly plates is installed with a mounting plate, one side of the outer surface of the multiple mounting plates is installed with a screw rod, which passes through any assembly hole respectively, and the outer part of the multiple screw rods is threaded with a nut.

[0014] Preferably, third fixing columns are installed on the outside of the plurality of assembly seats, and the third fixing columns respectively pass through any through holes, and nuts are threadedly installed on the outside of the plurality of third fixing columns.

[0015] The construction method of the modular shield starting reaction frame includes the following steps:

[0016] 1) Install the four L-shaped assembly plates onto the inner arc surface of the main ring and secure them in place with nuts;

[0017] 2) Install the arc assembly plate onto the L-shaped assembly plate, adjust the position of the arc assembly plate according to the actual geographical location, and secure it in place;

[0018] 3) Install the support rod on the assembly seat, and then install multiple assembly seats on the arc-shaped assembly plate respectively, adjust the position, and fix it;

[0019] 4) Fix the support poles to the rock of the tunnel;

[0020] 5) Assemble the sliding rod and the fixed rod into a whole, then install the fixed rod at a suitable position on the outer arc surface of the main ring according to the size of the shield machine, and tighten it with a nut;

[0021] 6) Adjust the extension position of the outrigger and lock it in place, so that the force-bearing position of the shield machine contacts the right-angle seat;

[0022] 7) After completing the work, disassemble the fixing rod, L-shaped assembly plate, arc-shaped assembly plate and assembly seat in sequence.

[0023] (III) Beneficial effects

[0024] Compared with the prior art, the present invention provides a modular shield starting reaction frame and a construction method thereof, which has the following beneficial effects:

[0025] 1. The modular shield starting reaction frame uses a main body ring as the main body of the device. The outer arc surface of the main body ring is installed with a plurality of first fixed columns in a circumferential array, and a plurality of fixed rods in a circumferential array are installed on the outside of the main body ring. The fixed rods are installed on the first fixed columns at different positions, and the positions of the fixed rods can be adjusted. At the same time, a sliding rod is slidably installed outside the fixed rod, and a right-angle seat is installed at the outer end of the sliding rod. Outrigger rods are slidably installed on both sides of the right-angle seat. When in use, by adjusting the positions of the fixed rods, the sliding rods and the outrigger rods, the device can be applied to shield machines of various sizes.

[0026] 2. The modular shield starting reaction frame has a plurality of second fixed columns in a circular array installed on the inner arc surface of the main body ring, and an arc-shaped assembly plate is installed outside the plurality of second fixed columns, on which a plurality of through holes in a circular array are opened. The assembly seat is installed on the through hole at a suitable position, and a strut is installed on the assembly seat to support the position of the entire device, so as to facilitate the shield machine to apply force. At the same time, the position of the arc-shaped assembly plate and the strut can be adjusted according to actual conditions for easy use.

[0027] The entire device adopts a multi-component structure, which is convenient for workers to assemble and transport after the device is disassembled. At the same time, the structure of the entire device can be adjusted according to the size of the shield machine, which improves the practicality of the device.

[0028] 3. The construction method of the modular shield starting reaction frame is to install four L-shaped assembly plates in a circular array on the main ring, and install an arc-shaped assembly plate on the outside thereof, install the assembly seat to the appropriate position on the arc-shaped assembly plate, and then install the support rod on the assembly seat. The support rod supports the entire device to fix the position of the main ring, and then install the required number of fixed rods at the appropriate position on the main ring according to the size and force position of the shield machine. At the same time, a sliding rod is installed outside each fixed rod, and the position of the sliding rod is adjusted so that the right-angle seat is located at the appropriate force point position. Subsequently, the position of the outrigger rod is adjusted to support the shield machine. The entire device has a simple structure, which is convenient for the staff to assemble and disassemble, and the device has a wide range of use, which can meet the needs of shield machines of various sizes and shapes, and can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first viewing angle;

[0030] Figure 2 A second perspective schematic diagram of the overall structure of the present invention;

[0031] Figure 3 It is a schematic diagram of the overall structure of the main body ring and a single fixing rod in the present invention in a combined state;

[0032] Figure 4 It is a schematic diagram of the overall structure of the sliding rod and the outrigger rod in the present invention in a combined state;

[0033] Figure 5 For the present invention Figure 4 Another perspective structural diagram of;

[0034] Figure 6 It is a schematic diagram of the overall structure of the sliding rod in the present invention;

[0035] Figure 7 It is a schematic diagram of the overall structure of the L-shaped assembly plate in the present invention;

[0036] Figure 8 This is a schematic diagram of the structure of the arc-shaped assembly plate in the present invention from a first viewing angle;

[0037] Fig. 9 It is a schematic structural diagram of the arc-shaped assembly plate in the present invention from a second viewing angle.

[0038] In the figure: 1-main body ring, 2-fixed rod, 3-sliding rod, 4-extending rod, 5-L-shaped assembly plate, 6-arc-shaped assembly plate, 7-support rod, 8-assembly seat, 9-threaded rod, 10-first fixed column, 11-second fixed column, 12-arc plate, 13-scale groove, 14-right angle seat, 15-threaded column, 16-sliding groove, 17-notch, 18-assembly hole, 19-mounting plate, 20-screw, 21-through hole, 22-third fixed column. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figure 1-9 The modular shield starting reaction frame includes a main body ring 1 which is in a circular ring shape as a whole. A plurality of fixed rods 2 in a circular array are installed on the outer arc surface of the main body ring 1. Sliding rods 3 are slidably installed on the outside of the plurality of fixed rods 2. Right-angle seats 14 are installed on the outer ends of the plurality of sliding rods 3. Outer sides of the plurality of right-angle seats 14 are slidably installed with outrigger rods 4. Four L-shaped assembly plates 5 in a circular array are installed on the inner arc surface of the main body ring 1. Arc-shaped assembly plates 6 are installed on the outside of the four L-shaped assembly plates 5. A plurality of through holes 21 in a circular array are opened on the outside of the four arc-shaped assembly plates 6. An assembly seat 8 is installed on any through hole 21. A plurality of assembly seats 8 are installed with support rods 7. The outer ends of the plurality of support rods 7 are inserted into the rock cracks.

[0041] As an optional technical solution of the present invention:

[0042] Arc plates 12 are installed on both sides of one end of the outer side of multiple fixing rods 2, and multiple first fixing columns 10 in a circular array are installed on the outer arc surface of the main body ring 1, which respectively penetrate two arc plates 12, and nuts are installed on the external threads of the first fixing columns 10. The arc plates 12 fit the outer arc surface of the main body ring 1. At the same time, after the two first fixing columns 10 penetrate the arc plates 12, it can be ensured that the fixing rods 2 will not shake, thereby ensuring stability.

[0043] As an optional technical solution of the present invention:

[0044] The inner arc surface of the main body ring 1 is installed with four circular array second fixing columns 11, which respectively pass through the four L-shaped assembly plates 5. The outer parts of the four second fixing columns 11 are threaded with nuts, so that the L-shaped assembly plate 5 can be installed on the main body ring 1, and a space is left between the L-shaped assembly plate 5 and the main body ring 1 to avoid positional interference between the components.

[0045] As an optional technical solution of the present invention:

[0046] The outer surfaces of the plurality of fixing rods 2 are all provided with graduated grooves 13 , and the positions of the right-angle seats 14 can be conveniently adjusted according to the graduated grooves 13 to ensure that the extending positions of the plurality of right-angle seats 14 are accurate.

[0047] As an optional technical solution of the present invention:

[0048] The multiple fixed rods 2 are all U-shaped as a whole, and threaded rods 9 are rotatably installed inside. The multiple threaded rods 9 are parallel to the fixed rods 2 and respectively pass through the multiple sliding rods 3. The two are threadedly matched. Hand wheels are installed at the outer ends of the multiple threaded rods 9. The outer surface of the sliding rod 3 fits with the surface of the fixed rod 2, which serves the purpose of positioning the sliding rod 3 so that the sliding rod 3 can only move back and forth.

[0049] As an optional technical solution of the present invention:

[0050] Sliding grooves 16 are provided on both sides of the exterior of the plurality of right-angle seats 14, and notches 17 are provided on the inner walls of the plurality of sliding grooves 16. Threaded columns 15 are installed at one end of the exterior of the plurality of extension rods 4, which respectively penetrate the plurality of notches 17, and nuts are threadedly installed on the exterior of the plurality of threaded columns 15. The size of the extension rod 4 is adapted to the size inside the sliding groove 16, so as to prevent the extension rod 4 from shaking and enable the extension rod 4 to be firmly locked in place.

[0051] As an optional technical solution of the present invention:

[0052] One side of the outer surface of the multiple L-shaped assembly plates 5 is provided with a multiple uniformly arrayed assembly holes 18, the middle position of the inner arc surface of the multiple arc-shaped assembly plates 6 is installed with a mounting plate 19, one side of the outer surface of the multiple mounting plates 19 is installed with a screw 20, which passes through any assembly hole 18 respectively, and the outer parts of the multiple screws 20 are threaded with nuts. The staff can adjust the position of the arc-shaped assembly plate 6 according to actual conditions, so that the assembly holes 18 can be grouped in two, which is used to limit the arc-shaped assembly plate 6 to prevent it from accidentally shaking or rotating.

[0053] As an optional technical solution of the present invention:

[0054] The outside of multiple assembly seats 8 are all installed with third fixing columns 22, which respectively penetrate any through holes 21. The outside of multiple third fixing columns 22 are all threaded with nuts, which is convenient for assembling the assembly seat 8. The assembly seat 8 can be rotated to facilitate fixing the support rod 7 at a suitable position on the tunnel rock wall. At the same time, during use, the support rod 7 can be fixed to the rock wall by using expansion wire or the like.

[0055] The construction method of the modular shield starting reaction frame includes the following steps:

[0056] 1) Install four L-shaped assembly plates 5 onto the inner arc surface of the main ring 1 and tighten them with nuts;

[0057] 2) Install the arc-shaped assembly plate 6 onto the L-shaped assembly plate 5, adjust the position of the arc-shaped assembly plate 6 according to the actual geographical location, and fix it in place;

[0058] 3) Install the support rod 7 onto the assembly seat 8, and then install the multiple assembly seats 8 onto the arc-shaped assembly plate 6 respectively, adjust the positions, and fix them in place;

[0059] 4) Fix the support rod 7 to the rock of the tunnel;

[0060] 5) Assemble the sliding rod 3 and the fixing rod 2 into a whole, and then install the fixing rod 2 at a suitable position on the outer arc surface of the main ring 1 according to the size of the shield machine, and tighten it with a nut;

[0061] 6) Adjust the extended position of the outrigger 4 and lock it in place, so that the force-bearing position of the shield machine contacts the right-angle seat 14;

[0062] 7) After the work is completed, the fixing rod 2, the L-shaped assembly plate 5, the arc-shaped assembly plate 6 and the assembly seat 8 are disassembled in sequence.

[0063] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0064] When in use, four L-shaped assembly plates 5 in a circular array are installed on the main body ring 1, and an arc-shaped assembly plate 6 is installed on the outside thereof, the assembly seat 8 is installed at a suitable position on the arc-shaped assembly plate 6, and then the support rod 7 is installed on the assembly seat 8. The entire device is supported by the support rod 7 to fix the position of the main body ring 1, and then the required number of fixed rods 2 are installed at suitable positions on the main body ring 1 according to the size and force position of the shield machine. At the same time, a sliding rod 3 is installed outside each fixed rod 2, and the position of the sliding rod 3 is adjusted so that the right-angle seat 14 is located at a suitable force point position, and then the position of the outrigger rod 4 is adjusted to support the shield machine. The entire device has a simple structure, which is convenient for the staff to assemble and disassemble, and the device has a wide range of uses, meeting the needs of shield machines of various sizes and shapes, and can be reused.

[0065] In summary, the characteristics, assembly method, use process and functions realized of each component in the modular shield starting reaction frame and its construction method are as follows: a main body ring 1 is used as the main body of the device, and a plurality of first fixed columns 10 in a circumferential array are installed on the outer arc surface of the main body ring 1. A plurality of fixed rods 2 in a circumferential array are installed on the outside of the main body ring 1. The fixed rods 2 are installed on the first fixed columns 10 at different positions, and the positions of the fixed rods 2 can be adjusted. At the same time, a sliding rod 3 is slidably installed outside the fixed rod 2, and a right-angle seat 14 is installed at the outer end of the sliding rod 3. Outriggers are slidably installed on both sides of the right-angle seat 14. 4. When in use, by adjusting the positions of the fixing rod 2, the sliding rod 3 and the extension rod 4, the device can be adapted to shield machines of various sizes. A plurality of second fixing columns 11 in a circular array are installed on the inner arc surface of the main body ring 1. An arc-shaped assembly plate 6 is installed outside the plurality of second fixing columns 11, on which a plurality of through holes 21 in a circular array are opened. The assembly seat 8 is installed on the through holes 21 at appropriate positions, and a support rod 7 is installed on the assembly seat 8 to support the position of the entire device, so as to facilitate the shield machine to apply force. At the same time, the positions of the arc-shaped assembly plate 6 and the support rod 7 can be adjusted according to actual conditions for easy use.

[0066] The entire device adopts a multi-component structure, which is convenient for workers to assemble and transport after the device is disassembled. At the same time, the structure of the entire device can be adjusted according to the size of the shield machine, which improves the practicality of the device.

[0067] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise one" do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Modular shield starting reaction frame, characterized by: The invention comprises a main body ring (1) which is in the shape of an annulus as a whole, a plurality of fixed rods (2) in a circular array are installed on the outer arc surface of the main body ring (1), a plurality of sliding rods (3) are slidably installed on the outside of the plurality of fixed rods (2), a plurality of outer ends of the plurality of sliding rods (3) are installed with right-angle seats (14), and a plurality of extension rods (4) are slidably installed on both sides of the outside of the plurality of right-angle seats (14), four L-shaped assembly plates (5) in a circular array are installed on the inner arc surface of the main body ring (1), an arc-shaped assembly plate (6) is installed on the outside of the four L-shaped assembly plates (5), a plurality of through holes (21) in a circular array are opened on the outside of the four arc-shaped assembly plates (6), an assembly seat (8) is installed on any of the through holes (21), a plurality of the assembly seats (8) are installed with support rods (7), and the outer ends of the plurality of support rods (7) are inserted into the rock cracks.

2. The modular shield initial reaction frame according to claim 1 is characterized in that: Arc plates (12) are installed on both sides of one end of the outer side of the plurality of fixing rods (2), and the outer arc surface of the main body ring (1) is installed with a plurality of first fixing columns (10) in a circumferential array, which respectively penetrate two arc plates (12), and the first fixing columns (10) are installed with nuts on the external threads.

3. The modular shield initial reaction frame according to claim 1 is characterized in that: The inner arc surface of the main body ring (1) is provided with four second fixing columns (11) in a circumferential array, which respectively penetrate four L-shaped assembly plates (5), and nuts are threadedly installed on the outside of the four second fixing columns (11).

4. The modular shield initial reaction frame according to claim 1, characterized in that: The outer surfaces of the plurality of fixing rods (2) are all provided with scale grooves (13).

5. The modular shield initial reaction frame according to claim 1, characterized in that: The plurality of fixed rods (2) are all U-shaped as a whole, and threaded rods (9) are rotatably installed inside the plurality of fixed rods (2). The plurality of threaded rods (9) are parallel to the fixed rods (2) and respectively penetrate the plurality of sliding rods (3). The two are threadedly matched, and hand wheels are installed at the outer ends of the plurality of threaded rods (9).

6. The modular shield initial reaction frame according to claim 1, characterized in that: Sliding grooves (16) are provided on both sides of the exterior of the plurality of right-angle seats (14), notches (17) are provided on the inner walls of the plurality of sliding grooves (16), threaded columns (15) are installed at one end of the exterior of the plurality of extension rods (4), and the threaded columns (15) respectively penetrate the plurality of notches (17), and nuts are threadedly installed on the exterior of the plurality of threaded columns (15).

7. The modular shield initial reaction frame according to claim 1, characterized in that: A plurality of evenly arrayed assembly holes (18) are provided on one side of the outer surface of the plurality of L-shaped assembly plates (5); a mounting plate (19) is installed at the middle position of the inner arc surface of the plurality of arc-shaped assembly plates (6); a screw rod (20) is installed on one side of the outer surface of the plurality of mounting plates (19), which respectively passes through any assembly hole (18); and nuts are threadedly installed on the outside of the plurality of screw rods (20).

8. The modular shield initial reaction frame according to claim 1, characterized in that: The exterior of the plurality of assembly seats (8) is equipped with a third fixing column (22), which respectively passes through any through hole (21), and the exterior of the plurality of third fixing columns (22) is equipped with a nut threadedly mounted thereon.

9. The construction method of modular shield starting reaction frame is characterized by: The following steps are included: 1) Install four L-shaped assembly plates (5) onto the inner arc surface of the main body ring (1) and secure them in place by tightening them with nuts; 2) Install the arc-shaped assembly plate (6) onto the L-shaped assembly plate (5), adjust the position of the arc-shaped assembly plate (6) according to the actual geographical location, and secure it in place; 3) Installing the support rod (7) on the assembly seat (8), and then installing the plurality of assembly seats (8) on the arc-shaped assembly plate (6) respectively, adjusting the positions, and fixing them in place; 4) Fixing the support rod (7) to the rock of the tunnel; 5) Assemble the sliding rod (3) and the fixing rod (2) into a whole, then install the fixing rod (2) at a suitable position on the outer arc surface of the main ring (1) according to the size of the shield machine, and tighten it with a nut; 6) Adjust the extended position of the extension rod (4) and lock it to make the force-bearing position of the shield machine contact with the right-angle seat (14); 7) After the work is completed, the fixing rod (2), the L-shaped assembly plate (5), the arc-shaped assembly plate (6) and the assembly seat (8) are disassembled in sequence.

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