Method for installing TBM (Tunnel Boring Machine) before tunneling construction

Abstract

The invention discloses a method for installing a TBM before tunneling construction, the TBM comprises a main machine part, an ABS, a spraying and mixing bridge and a plurality of matched trolleys, the main machine part comprises a cutterhead, a front shield, a main drive, a telescopic shield and a tight supporting shield, and the method for installing the TBM before tunneling construction comprises the following steps: S1, early-stage construction; s2, the main machine part enters a hole in a split mode; s3, assembling a host part; s4, the host part moves forwards; s5, ABS assembly is carried out; s6, the matched trolley enters the hole; s7, assembling the spray-mixing bridge; and S8, assembling the matched trolley. According to the installation method before tunneling construction of the TBM tunneling machine, the length of an assembly hole is reduced, the construction cost is reduced, and the safety and adaptability are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction, and in particular to a method for installing a TBM (Transport Build Machine) before tunneling construction. Background Art

[0002] Currently, a TBM typically consists of a mainframe (cutterhead, front shield, main drive, telescopic shield, and tensioning shield), an ABS, a shotcrete bridge, and multiple trolleys, all connected in sequence. Before tunneling, the TBM must be installed in an assembly tunnel at the rear of the launch tunnel. TBMs then proceed forward along the launch tunnel, guided by the launch tunnel, which is appropriately sized for the TBM. TBMs are relatively long. Traditional initial installation methods involve constructing a large and long assembly tunnel to accommodate the complete TBM assembly. All TBM components are then transported to the assembly tunnel, where they are assembled into the complete TBM, and then moved to the launch tunnel. This method of complete assembly and relocation requires a large and long tunnel, resulting in high construction costs and low safety. Furthermore, this traditional assembly method is impractical when faced with poor surrounding rock conditions or other space constraints within the tunnel, making it unsuitable for use. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a TBM tunneling machine pre-installation method that reduces the length of the assembly hole, lowers construction costs, and improves safety and adaptability.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: A method for installing a TBM before excavation construction is disclosed. The TBM includes a mainframe, an ABS, a spray-mix bridge, and multiple supporting trolleys. The mainframe includes a cutterhead, a front shield, a main drive, a telescopic shield, and a tensioning shield. The method for installing the TBM before excavation construction includes the following steps: S1. Preliminary construction: forming an assembly hole and an inlet and outlet hole, with a connection port provided on one side of the assembly hole, and the inlet and outlet hole being connected to the connection port; S2. The main engine is separated and put into the hole: the cutterhead, front shield, main drive, telescopic shield and holding shield are transported from the inlet and outlet holes to the assembly hole in sequence, and the cutterhead, front shield, main drive, telescopic shield and holding shield are arranged in sequence in the assembly hole in the direction of excavation; S3. Assembly of the main engine: Assemble the cutter head, front shield, main drive, telescopic shield and tensioning shield to form an integrated main engine. S4, moving the main engine forward: moving the main engine forward to the starting hole; S5, ABS assembly: transport the ABS from the inlet and outlet holes to the assembly hole, and assemble the ABS onto the support shield; S6. Supporting trolleys enter the hole: transport each supporting trolley from the material inlet and outlet holes to the assembly hole in sequence, and move each supporting trolley to a position at the rear of the assembly hole where it does not obstruct the spray-mix bridge from the material inlet and outlet holes into the assembly hole; S7, spray-mix bridge assembly: transport the spray-mix bridge from the inlet and outlet holes to the assembly hole, and assemble the spray-mix bridge onto the ABS; S8. Assembly of supporting trolleys: Assemble the supporting trolleys and the shotcrete bridge into one piece and arrange them in sequence along the excavation direction to form an integrated TBM.

[0005] As a further improvement of the above technical solution: There are three matching trolleys, which are respectively recorded as the first trolley, the second trolley and the third trolley; S6 includes the following sub-steps: S61, the left and right parts of the first car enter the hole: the left and right parts of the first car are first transported from the material inlet and outlet holes into the assembly hole, and then moved to the two sides of the rear part of the assembly hole so that the left and right parts of the first car can accommodate the second car; S62, the second car enters the hole as a whole: the second car is transported from the material inlet and outlet hole to the assembly hole, and then moves back to the space between the left and right parts of the first car; S63. The third car’s front and rear parts enter the hole separately: The third car transports the front and rear parts from the material inlet and outlet hole to the assembly hole, and then assembles the front and rear parts into one piece and moves them to the front side of the second car so as not to hinder the spray-mix bridge from entering the assembly hole from the material inlet and outlet hole.

[0006] The S8 includes the following sub-steps: S81, assembly of the third car: move the third car forward and assemble it on the spray-mix bridge, and then move the entire car into the starting tunnel a set distance; S82, assembling the second car: moving the second car forward and assembling it onto the third car; S83, assembling the first car: After assembling the left and right parts of the first car into one piece, move it forward and assemble it onto the second car.

[0007] In the above-mentioned S81, the distance is set to 10m.

[0008] In S2, the cutter disc parts are transported from the inlet and outlet holes to the assembly hole, and then assembled into one piece in the assembly hole.

[0009] The separate parts of the cutter head are temporarily fastened in the assembly hole and then welded into one piece.

[0010] In the above-mentioned S3, the front shield, the main drive, the telescopic shield and the tightening shield are first assembled into one body, and then the cutter head is assembled onto the front shield.

[0011] In S4, the starting hole is formed by the main engine part being excavated forward.

[0012] In S4, the starting tunnel is constructed in S1, and the starting tunnel and the assembly tunnel are connected in the tunneling direction of the TBM.

[0013] The starting hole is adapted to the size of the main body part, and the assembly hole is larger than the starting hole.

[0014] Compared with the prior art, the advantages of the present invention are: The installation method of a TBM tunnel boring machine before excavation construction of the present invention is as follows: first, the main machine part 1 is transported into the assembly hole in parts, and after being assembled into one in the assembly hole, it is moved forward as a whole to the starting hole, and then the ABS, the spray-mix bridge and the supporting trolley are transported into the hole for assembly. In this way, since the main machine part is moved forward into the starting hole to make room in the assembly hole, the assembly hole does not need to be designed to be longer than the TBM tunnel boring machine to meet the assembly requirements of the TBM tunnel boring machine, that is, the length of the assembly hole is reduced, the construction cost is reduced, and the safety is improved; second, after the supporting trolley enters the hole and moves back to make room, the spray-mix bridge is assembled, and the step design is reasonable, which meets the side feeding assembly requirements and better utilizes the length of the assembly hole, thereby further reducing the length requirement of the assembly hole; third, since the length of the assembly hole needs to be shortened, it can meet the construction requirements of more surrounding rock conditions and improve adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a flow chart of the installation method of a TBM tunnel boring machine before tunneling construction.

[0016] Figure 2 The present invention is a schematic diagram of the structure of the main machine part of the TBM tunneling machine before tunneling construction after the main machine part is separated and put into the hole.

[0017] Figure 3 It is a structural schematic diagram of the method for installing a TBM before excavation construction according to the present invention after the main body is assembled and moved forward as a whole.

[0018] Figure 4 It is a schematic structural diagram of the assembled ABS2 of the TBM tunneling machine pre-turbation construction installation method of the present invention.

[0019] Figure 5 This is a structural schematic diagram of a TBM tunnel boring machine installation method before tunneling construction according to the present invention, after the first vehicle enters the tunnel in left and right parts and retreats.

[0020] Figure 6 This is a schematic structural diagram of the second vehicle of the TBM tunnel boring machine pre-trailer construction installation method of the present invention after entering the tunnel.

[0021] Figure 7This is a schematic structural diagram of the third vehicle after the front and rear parts of the third vehicle enter the tunnel in the installation method of the TBM tunnel boring machine before tunneling construction of the present invention.

[0022] Figure 8 It is a schematic structural diagram of the assembled shotcrete bridge of the TBM tunneling machine installation method before tunneling construction of the present invention.

[0023] Figure 9 This is a schematic structural diagram of the third vehicle after assembly in the TBM roadheader pre-trailer construction installation method of the present invention.

[0024] Figure 10 This is a structural schematic diagram of the TBM roadheader pre-trailer construction installation method of the present invention after the third vehicle is assembled and moved forward as a whole.

[0025] Figure 11 It is a schematic structural diagram of the TBM roadheader installation method before tunneling construction after the overall assembly is completed.

[0026] The numbers in the figure represent: 1. Main machine; 11. Cutterhead; 12. Front shield; 13. Main drive; 14. Telescopic shield; 15. Tension shield; 2. ABS; 3. Spray-mix bridge; 4. Supporting trolley; 41. First trolley; 42. Second trolley; 43. Third trolley; 5. Starting tunnel; 6. Assembly tunnel; 61. Connection port; 7. Inlet and outlet tunnel; 8. Excavation direction. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0030] In the present invention, unless otherwise expressly specified or limited, terms such as "assemble," "connect," "connect," and "fix" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0031] Figures 1 to 11 An embodiment of a method for installing a TBM before tunneling construction is shown. The method for installing a TBM before tunneling construction in this embodiment includes a main unit 1, an ABS 2, a spray-mix bridge 3, and multiple supporting trolleys 4. The main unit 1 includes a cutterhead 11, a front shield 12, a main drive 13, a telescopic shield 14, and a tensioning shield 15. The method for installing a TBM before tunneling construction includes the following steps: S1. Preliminary construction: The assembly hole 6 and the inlet and outlet holes 7 are formed by construction. A connection port 61 is provided on one side of the assembly hole 6, and the inlet and outlet holes 7 are connected to the connection port 61; S2. The main machine part 1 is separated and put into the hole: the cutter head 11, the front shield 12, the main drive 13, the telescopic shield 14 and the tightening shield 15 are transported from the inlet and outlet holes 7 to the assembly hole 6 in sequence, and the cutter head 11, the front shield 12, the main drive 13, the telescopic shield 14 and the tightening shield 15 are arranged in sequence in the assembly hole 6 in the direction of excavation 8, as shown in FIG. Figure 1 As shown; S3, main machine part 1 assembly: the cutter head 11, front shield 12, main drive 13, telescopic shield 14 and support shield 15 are assembled to form an integrated main machine part 1, such as Figure 3 As shown; S4, move the main engine part 1 forward: move the main engine part 1 forward to the starting hole 5, such as Figure 3 As shown; S5, ABS2 assembly: transport ABS2 from the material inlet and outlet hole 7 to the assembly hole 6, and assemble ABS2 onto the support shield 15, as shown in FIG. Figure 4 As shown; S6, supporting trolley 4 enters the hole: each supporting trolley 4 is transported from the material inlet and outlet hole 7 to the assembly hole 6 in sequence, and each supporting trolley 4 is moved to the rear of the assembly hole 6 so as not to hinder the spray-mix bridge 3 from entering the assembly hole 6 from the material inlet and outlet hole 7. Figures 3 to 7 As shown; S7, assembling the spray-mix bridge 3: transport the spray-mix bridge 3 from the inlet and outlet holes 7 to the assembly hole 6, and assemble the spray-mix bridge 3 onto the ABS 2. Figure 8 As shown; S8, assembling the supporting trolleys 4: Assemble the supporting trolleys 4 and the spray-mix bridge 3 into one piece, and arrange them in sequence along the excavation direction 8, so as to form an integral TBM. Figure 9 and Figure 10 shown.

[0032] The installation method of this TBM tunnel boring machine before excavation construction is as follows: first, the main machine part 1 is transported in parts to the assembly hole 6, and after being assembled into one in the assembly hole 6, it is moved forward as a whole to the starting hole 5, and then the ABS2, the spray-mix bridge 3 and the supporting trolley 4 are transported into the hole for assembly. In this way, since the main machine part 1 is moved forward to the starting hole 5 to make room in the assembly hole 6, the assembly hole 6 does not need to be designed to be longer than the TBM tunnel boring machine to meet the assembly requirements of the TBM tunnel boring machine, that is, the length of the assembly hole 6 is reduced, the construction cost is reduced, and the safety is improved; second, after the supporting trolley 4 enters the hole and moves back to make room, the spray-mix bridge 3 is assembled, and the step design is reasonable, which meets the side feeding assembly requirements and better utilizes the length of the assembly hole 6, thereby further reducing the length requirement of the assembly hole 6; third, since the length of the assembly hole 6 needs to be shortened, it can meet the construction requirements of more surrounding rock conditions and improves adaptability.

[0033] Furthermore, in this embodiment, there are three supporting trolleys 4, which are respectively recorded as a first trolley 41, a second trolley 42 and a third trolley 43; S6 includes the following sub-steps: S61, the first car 41 is separated into two parts and enters the hole: the first car 41 is first separated into two parts and transported from the material inlet and outlet hole 7 to the assembly hole 6, and then moved to the two sides of the rear part of the assembly hole 6, so that the second car 42 can be accommodated between the left and right parts of the first car 41. Figure 5 As shown; S62, the second car 42 enters the hole as a whole: the second car 42 is transported from the material inlet and outlet hole 7 to the assembly hole 6, and then moves back to the space between the left and right parts of the first car 41, as shown in FIG. Figure 6 As shown; S63, the third car 43 is separated into the front and back parts and enters the hole: the third car 43 is separated into the front and back parts and transported from the material inlet and outlet hole 7 to the assembly hole 6, as shown in FIG. Figure 7 Then the front and rear split assembly into one piece moved to the front of the second vehicle 42 does not hinder the spray-mix bridge 3 from the feed hole 7 into the assembly hole 6 position, as Figure 8 shown.

[0034] The first trolley 41 and the third trolley 43 enter the hole separately, and the manner and sequence in which each supporting trolley 4 enters the hole and retreats fully utilizes the length of the assembly hole 6, meets the requirements for entering and assembling the shorter assembly hole 6, and can further reduce the length requirement of the assembly hole 6.

[0035] Furthermore, in this embodiment, S8 includes the following sub-steps: S81, assembling the third vehicle 43: moving the third vehicle 43 forward and assembling it on the spray-mix bridge 3, and then moving the entire vehicle 43 into the starting tunnel 5 by a set distance; S82, assembling the second car 42: moving the second car 42 forward and assembling it onto the third car 43; S83, assembling the first vehicle 41: After the left and right parts of the first vehicle 41 are assembled into one body, the first vehicle 41 is moved forward and assembled onto the second vehicle 42.

[0036] The third car 43 is moved forward and assembled onto the spray-mix bridge 3, and then moved as a whole into the starting tunnel 5 by a set distance, and then the second car 42 and the first car 41 are assembled. In this way, the space in the assembly tunnel 6 is further freed up, the length of the assembly tunnel 6 can be further reduced, and the construction cost can be further reduced.

[0037] Furthermore, in this embodiment, in S81, the distance is set to 10m. Of course, the set distance can also be adjusted according to actual conditions.

[0038] Furthermore, in this embodiment, in S2 , the cutter disc 11 is transported separately from the feed hole 7 to the assembly hole 6 , and then assembled into one piece in the assembly hole 6 .

[0039] Furthermore, in this embodiment, the separate parts of the cutter head 11 are temporarily fastened in the assembly hole 6 and then welded into one piece.

[0040] Furthermore, in this embodiment, in S3, the front shield 12, the main drive 13, the telescopic shield 14 and the tightening shield 15 are first assembled into one body, and then the cutter head 11 is assembled onto the front shield 12, which facilitates the installation of the cutter head 11 and improves the installation effect of the cutter head 11.

[0041] Furthermore, in this embodiment, in S4, the launch tunnel 5 is formed by the forward excavation of the main machine part 1. In other embodiments, in S4, the launch tunnel 5 can also be constructed and formed in S1, and the launch tunnel 5 and the assembly tunnel 6 are connected in the excavation direction 8 of the TBM. Forming the launch tunnel 5 in the early stage of construction can improve the subsequent assembly efficiency, but it will increase the early construction cost and construction time.

[0042] Furthermore, in this embodiment, the starting hole 5 is adapted to the size of the main body part 1 (adapted to the circumferential size), and the assembly hole 6 is larger than the starting hole 5 .

[0043] Although the present invention has been disclosed above with reference to preferred embodiments, this is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, utilize the technical content disclosed above to make many possible changes and modifications to the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the scope of protection of the technical solution of the present invention.

Claims

1. A method for installing a TBM before excavation construction, wherein the TBM comprises a main machine part (1), an ABS (2), a spray-mix bridge (3) and a plurality of supporting trolleys (4), wherein the main machine part (1) comprises a cutter head (11), a front shield (12), a main drive (13), a telescopic shield (14) and a tensioning shield (15), and is characterized in that: The TBM tunnel boring machine pre-trail construction installation method comprises the following steps: S1. Preliminary construction: forming an assembly hole (6) and an inlet and outlet hole (7), wherein a connection port (61) is provided on one side of the assembly hole (6), and the inlet and outlet hole (7) is connected to the connection port (61); S2. The main machine part (1) is separated and put into the hole: the cutter head (11), the front shield (12), the main drive (13), the telescopic shield (14) and the support shield (15) are transported from the inlet and outlet hole (7) to the assembly hole (6) in sequence, and the cutter head (11), the front shield (12), the main drive (13), the telescopic shield (14) and the support shield (15) are arranged in sequence in the assembly hole (6) in the direction of excavation (8); S3, main machine part (1) assembly: assemble the cutter head (11), front shield (12), main drive (13), telescopic shield (14) and support shield (15) to form an integrated main machine part (1); S4, moving the main engine part (1) forward: moving the main engine part (1) forward to the starting hole (5); S5, ABS (2) assembly: transporting the ABS (2) from the material inlet and outlet hole (7) to the assembly hole (6), and assembling the ABS (2) onto the support shield (15); S6, the supporting trolley (4) enters the hole: each supporting trolley (4) is sequentially transported from the material inlet and outlet hole (7) to the assembly hole (6), and each supporting trolley (4) is moved to a position at the rear of the assembly hole (6) where it does not hinder the spray-mix bridge (3) from entering the assembly hole (6) from the material inlet and outlet hole (7); S7, assembling the spray-mix bridge (3): transporting the spray-mix bridge (3) from the inlet and outlet holes (7) to the assembly hole (6), and assembling the spray-mix bridge (3) onto the ABS (2); S8. Assembling the supporting trolleys (4): Assemble the supporting trolleys (4) and the spray-mix bridge (3) into one piece and arrange them in sequence along the excavation direction (8), thereby forming an integrated TBM.

2. The TBM tunneling machine pre-installation method according to claim 1, characterized in that: The supporting trolleys (4) are three, respectively denoted as the first trolley (41), the second trolley (42) and the third trolley (43); S6 includes the following sub-steps: S61, the first car (41) is split into the left and right parts and enters the hole: the first car (41) is firstly split into the left and right parts and transported from the material inlet and outlet hole (7) to the assembly hole (6), and then moved to the two sides of the rear of the assembly hole (6), so that the second car (42) can be accommodated between the left and right parts of the first car (41); S62, the second car (42) enters the hole as a whole: the second car (42) is transported from the material inlet and outlet hole (7) to the assembly hole (6), and then moves back to between the left and right parts of the first car (41); S63, the third car (43) enters the hole with its front and rear parts separated: the third car (43) is transported from the material inlet and outlet hole (7) to the assembly hole (6) with its front and rear parts separated, and then the front and rear parts are assembled into one piece and then moved to the front side of the second car (42) so as not to hinder the spray-mix bridge (3) from entering the assembly hole (6) from the material inlet and outlet hole (7).

3. The TBM tunnel boring machine pre-tune construction installation method according to claim 2, characterized in that: The S8 includes the following sub-steps: S81, assembling the third car (43): moving the third car (43) forward and assembling it on the spray-mix bridge (3), and then moving the whole car into the starting tunnel (5) by a set distance; S82, assembling the second car (42): moving the second car (42) forward and assembling it onto the third car (43); S83, assembling the first car (41): After the left and right parts of the first car (41) are assembled into one body, the first car (41) is moved forward and assembled onto the second car (42).

4. The method for installing a TBM before excavation construction according to claim 3, characterized in that: In the above-mentioned S81, the distance is set to 10m.

5. The method for installing a TBM before excavation construction according to claim 1, characterized in that: In S2, the cutter disc (11) is transported separately from the feed hole (7) to the assembly hole (6), and then assembled into one piece in the assembly hole (6).

6. The method for installing a TBM before excavation construction according to claim 5, characterized in that: The separate parts of the cutter disc (11) are temporarily fastened in the assembly hole (6) and then welded into one piece.

7. The method for installing a TBM before excavation construction according to claim 5, characterized in that: In the above-mentioned S3, the front shield (12), the main drive (13), the telescopic shield (14) and the tightening shield (15) are first assembled into one body, and then the cutter head (11) is assembled onto the front shield (12).

8. The method for installing a TBM before excavation construction according to any one of claims 1 to 7, characterized in that: In said S4, the starting hole (5) is formed by the main engine part (1) being excavated forward.

9. The method for installing a TBM before excavation construction according to any one of claims 1 to 7, characterized in that: In the S4, the starting tunnel (5) is constructed and formed in the S1, and the starting tunnel (5) and the assembly tunnel (6) are connected in the excavation direction (8) of the TBM.

10. The method for installing a TBM before excavation construction according to claim 9, characterized in that: The starting hole (5) is adapted to the size of the main body part (1), and the assembly hole (6) is larger than the starting hole (5).

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