Structure and method for controlling floating posture of shield tunneling machine for penetrating through pile wall structure in soft soil stratum

Abstract

The invention relates to the technical field of shield tunneling machine floating posture control, in particular to a structure and method for controlling the floating posture of a shield tunneling machine for a soft soil stratum to penetrate through a pile wall structure, and the structure comprises the shield tunneling machine which is internally provided with duct pieces; a hanging ring is arranged on the surface of the cross rod, a C-shaped plate is arranged at the end of the hanging ring, a fixing plate is arranged in the C-shaped plate, a limiting ring is fixed to the C-shaped plate, a clamping groove is formed in the bottom of the fixing plate, and a telescopic plate is arranged on the surface of the duct piece; the extension rod is arranged on the surface of the duct piece; the shield tunneling machine posture control device has the beneficial effects that a duct piece is placed in a shield tunneling machine, the effect of controlling the posture of the shield tunneling machine is achieved, the [-shaped plate is clamped on the surface of the fixing plate and hung on the surface of the hanging ring through a lifting device, after the duct piece is lifted, the duct piece is pushed, the position of the duct piece is changed, the position of the duct piece is adjusted, and fine control over the posture of the shield tunneling machine is achieved; and a limiting ring is arranged at the bottom of the U-shaped plate.

Description

Technical Field

[0001] This invention relates to the field of shield tunneling machine floating attitude control technology, specifically to a shield tunneling machine floating attitude control structure and method for penetrating pile wall structures in soft soil strata. Background Technology

[0002] A tunnel boring machine (TBM) is a type of tunnel boring machine that uses the shield tunneling method. The shield tunneling method involves the TBM simultaneously constructing (laying) the tunnel's "shield" (referring to supporting segments) while excavating, which differs from open-face tunneling methods. Internationally, in a broader sense, TBMs can also be used in rock formations, but this is distinct from open-face (non-shield tunneling) machines. In the existing technology, during the process of controlling the upward floating attitude of the tunnel boring machine, the attitude of the tunnel boring machine is controlled by suspending the tunnel segments, which plays a role in preventing the upward floating from occurring. However, because the segments are directly fixed inside the tunnel boring machine, the position of the segments cannot be precisely adjusted, resulting in an inability to effectively control the upward attitude of the tunnel boring machine. Summary of the Invention

[0003] The purpose of this invention is to provide a structure and method for controlling the floating attitude of a tunnel boring machine (TBM) traversing a pile wall structure in soft soil strata, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a floating attitude control structure for a tunnel boring machine (TBM) penetrating a pile wall structure in soft soil strata, comprising: Tunnel boring machines (TBMs) have tunnel segments installed inside them. A crossbar has hanging rings on its surface, and a U-shaped plate at the end of each hanging ring. A fixing plate is located inside the U-shaped plate, and a limit ring is fixed to the U-shaped plate. A slot is provided at the bottom of the fixing plate. A telescopic plate is provided on the surface of the tube segment. Extension rods are installed on the surface of the tube segments.

[0005] Preferably, the tunnel boring machine has an internally fixed arc-shaped plate with limit strips on its surface. There are two sets of arc-shaped plates, which are symmetrically distributed, and multiple sets of limit strips are evenly distributed on the surface of the arc-shaped plate.

[0006] Preferably, the fixing plate is fixed inside the tunnel boring machine, the C-shaped plate is clamped on the surface of the fixing plate, and the C-shaped plate can move on the surface of the fixing plate. The crossbar moves with the C-shaped plate, and a limit ring is fixed at the bottom of the C-shaped plate, which moves with the C-shaped plate.

[0007] Preferably, after the limiting ring moves, it is located in the slot on the surface of the fixed plate, and an extension rod is fixed on the surface of the tube segment. A sleeve ring is fixed at the end of the extension rod, and a crossbar is inserted into the inside of the sleeve ring. The crossbar can move inside the sleeve ring.

[0008] Preferably, the surface of the hanging ring is provided with a lifting device to lift the segment, the surface of the segment is provided with a top holding piece that can move on the surface of the segment, and the bottom of the segment is provided with a force-bearing plate that is connected to the top holding piece, which moves with the force-bearing plate.

[0009] Preferably, a telescopic rod is fixed to the surface of the force-bearing plate, and the telescopic rod moves with the force-bearing plate. An extension block is fixed to the surface of the tube segment, and a telescopic rod is inserted into the inside of the extension block, allowing the telescopic rod to move inside the extension block.

[0010] Preferably, the surface of the telescopic plate is provided with limiting holes, and multiple sets of limiting holes are provided. A top holding ball is fixed to the end of the telescopic rod, and the top holding ball can be locked in the limiting holes.

[0011] Preferably, the telescopic plate is inserted into the end of the tube segment, and the telescopic plate can move at the end of the tube segment. A spring is provided inside the tube segment, with one end of the spring connected to the surface of the telescopic plate and the other end connected to the inside of the tube segment.

[0012] Preferably, the telescopic plate rests on the surface of the arc-shaped plate, and a groove is provided at the end of the telescopic plate, so that the limiting strip can be locked in the groove at the end of the telescopic plate.

[0013] Preferably, after the segment moves, the force plate supports the surface of the tunnel boring machine, and the supporting plate moves with the force plate, with the surface of the supporting plate supporting the surface of the crossbar.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention proposes placing tunnel segments inside a tunnel boring machine (TBM) to control the TBM's attitude. A U-shaped plate is secured to the surface of a fixed plate and suspended from the surface of a hanging ring by a lifting device. Lifting the tunnel segment and pushing it changes its position, allowing for precise control of the TBM's attitude. A limit ring is provided at the bottom of the U-shaped plate; after the U-shaped plate moves, the limit ring engages in a slot, preventing the U-shaped plate from detaching from the fixed plate. A telescopic plate rests against the surface of an arc-shaped plate, centering the tunnel segment. After the tunnel segment descends, a force-bearing plate rests against the inner wall of the TBM, causing the telescopic rod to move inside an extension block. The extension block moves a top-holding ball, which then rests against a limit hole, stabilizing the telescopic plate's position. The end of the telescopic plate rests against the surface of the arc-shaped plate, preventing further displacement of the tunnel segment. Furthermore, the top-holding plate moves with the force-bearing plate and rests against the surface of a crossbar, further fixing the tunnel segment's position. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective; Figure 3 This is a schematic diagram of the segment structure of the present invention; Figure 4 This is a schematic diagram of the tube segment structure from another perspective of the present invention; Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle; Figure 6 for Figure 4 Enlarged schematic diagram of the structure at point B; Figure 7 To level the test table; Figure 8 This is a table showing the planned attitude of the tunnel boring machine before entering the MJS reinforced area.

[0016] In the diagram: 1. Tunnel boring machine; 2. Segment; 3. Fixing plate; 4. C-shaped plate; 5. Telescopic plate; 6. Hanging ring; 7. Extension rod; 8. Crossbar; 9. Top support plate; 10. Force plate; 11. Sleeve ring; 12. Slot; 13. Limiting ring; 15. Limiting hole; 16. Top support ball; 17. Extension block; 18. Telescopic rod; 19. Arc plate; 20. Limiting strip. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1 to 8 This invention provides a technical solution: a structure and method for controlling the floating attitude of a tunnel boring machine (TBM) penetrating a pile wall structure in soft soil strata, comprising: The tunnel boring machine 1 houses tunnel segments 2. An arc-shaped plate 19 is fixed inside the tunnel boring machine 1. Limiting strips 20 are provided on the surface of the arc-shaped plate 19. Two sets of arc-shaped plates 19 are symmetrically distributed, and multiple sets of limiting strips 20 are evenly distributed on the surface of the arc-shaped plate 19. A hanging ring 6 is provided on the surface of the crossbar 8. A U-shaped plate 4 is provided at the end of the hanging ring 6. A fixing plate 3 is provided inside the U-shaped plate 4. A limiting ring 13 is fixed to the U-shaped plate 4. A slot 12 is provided at the bottom of the fixing plate 3. A telescopic plate 5 is provided on the surface of the tunnel segment 2. The fixing plate 3 is fixed inside the tunnel boring machine 1. The U-shaped plate 4 is engaged with the surface of the fixing plate 3 and can move on the surface of the fixing plate 3. The crossbar 8 moves with the U-shaped plate 4. A limiting ring 13 is fixed at the bottom of the U-shaped plate 4 and moves with the U-shaped plate 4. After the movement, the tube segment 2 is located in the slot 12 on the surface of the fixed plate 3, and the surface of the tube segment 2 is fixed with an extension rod 7. The end of the extension rod 7 is fixed with a sleeve ring 11. The crossbar 8 is inserted into the inside of the sleeve ring 11. The crossbar 8 can move inside the sleeve ring 11. The surface of the hanging ring 6 is provided with a lifting device. The lifting device lifts the tube segment 2. The surface of the tube segment 2 is provided with a top holding piece 9. The top holding piece 9 can move on the surface of the tube segment 2. The bottom of the tube segment 2 is provided with a force plate 10. The force plate 10 is connected to the top holding piece 9. The top holding piece 9 moves with the force plate 10. The surface of the force plate 10 is fixed with a telescopic rod 18. The telescopic rod 18 moves with the force plate 10. The end of the telescopic plate 5 abuts against the surface of the arc plate 19. The position of the tube segment 2 is no longer shifted, and the top holding piece 9 moves with the force plate 10. The top holding piece 9 abuts against the surface of the crossbar 8, further fixing the position of the tube segment 2. An extension block 17 is fixed to the surface of the tube segment 2. A telescopic rod 18 is inserted into the inside of the extension block 17 and can move inside the extension block 17. Limiting holes 15 are formed on the surface of the telescopic plate 5, and multiple sets of limiting holes 15 are provided. A top-holding ball 16 is fixed to the end of the telescopic rod 18 and can be engaged in the limiting hole 15. The telescopic plate 5 is inserted into the end of the tube segment 2 and can move at the end of the tube segment 2. A spring is installed inside the tube segment 2, with one end connected to the surface of the telescopic plate 5 and the other end connected to the inside of the tube segment 2. The telescopic plate 5 rests against the surface of the arc-shaped plate 19. The end is provided with a groove, and the limiting strip 20 can be locked in the groove at the end of the telescopic plate 5; the extension rod 7 is provided on the surface of the segment 2. After the segment 2 moves, the force plate 10 supports the surface of the shield machine 1, and the supporting plate 9 moves with the force plate 10. The surface of the supporting plate 9 supports the surface of the crossbar 8. After the C-shaped plate 4 moves, the limiting ring 13 is locked in the slot 12 to prevent the C-shaped plate 4 from detaching from the surface of the fixed plate 3. The telescopic plate 5 supports the surface of the arc plate 19, placing the segment 2 in the center position. After the segment 2 descends, the force plate 10 supports the inner wall of the shield machine 1, so that the telescopic rod 18 moves inside the extension block 17.

[0019] Segment 2 is placed inside the tunnel boring machine 1 to control its attitude. The U-shaped plate 4 is secured to the surface of the fixing plate 3 and suspended from the surface of the hanging ring 6 by a lifting device. Lifting segment 2 and pushing it changes its position, allowing for precise control of the tunnel boring machine 1's attitude. A limit ring 13 is installed at the bottom of the U-shaped plate 4; after movement, the limit ring 13 engages in the slot 12 to prevent the U-shaped plate 4 from detaching from the surface of the fixing plate 3. The telescopic plate 5 supports the arc... The surface of the shaped plate 19 centers the segment 2. After the segment 2 descends, the force plate 10 presses against the inner wall of the tunnel boring machine 1, causing the telescopic rod 18 to move inside the extension block 17. The extension block 17 drives the top ball 16 to move and press against the limiting hole 15, stabilizing the position of the telescopic plate 5. The end of the telescopic plate 5 presses against the surface of the arc plate 19, and the position of the segment 2 no longer shifts. The top piece 9 moves with the force plate 10 and presses against the surface of the crossbar 8, further fixing the position of the segment 2.

[0020] If the shield machine's attitude is normal after entering the reinforced area, and there is no upward floating phenomenon after the first diaphragm wall is removed, use the propulsion cylinder to gradually adjust the shield machine's high deviation attitude to -45mm (receiving attitude). If attitude adjustment is difficult, use the upper over-dig cutter. At the same time, after hinged through the first diaphragm wall, the attitude can be adjusted by hinge.

[0021] Although the illustrative specific embodiments of this application have been described above to enable those skilled in the art to understand this application, this application is not limited to the scope of the specific embodiments. For those skilled in the art, all applications utilizing the concept of this application are protected as long as various variations are within the spirit and scope of this application as defined and determined by the appended claims.

Claims

1. A floating attitude control structure for a tunnel boring machine (TBM) penetrating a pile wall structure in soft soil strata, characterized in that: include: The tunnel boring machine (1) has tunnel segments (2) installed inside it. A crossbar (8) is provided with a hanging ring (6) on its surface. A U-shaped plate (4) is provided at the end of the hanging ring (6). A fixing plate (3) is provided inside the U-shaped plate (4). A limit ring (13) is fixed to the U-shaped plate (4). A slot (12) is provided at the bottom of the fixing plate (3). A telescopic plate (5) is provided on the surface of the tube segment (2). An extension rod (7) is provided on the surface of the tube segment (2).

2. The floating attitude control structure for a tunnel boring machine (TBM) penetrating a pile wall structure in soft soil strata according to claim 1, characterized in that: The tunnel boring machine (1) has an arc plate (19) fixed inside. The surface of the arc plate (19) is provided with limit strips (20). There are two sets of arc plates (19), which are symmetrically distributed. There are multiple sets of limit strips (20), which are evenly distributed on the surface of the arc plate (19).

3. The floating attitude control structure for a tunnel boring machine (TBM) penetrating a pile wall structure in soft soil strata according to claim 2, characterized in that: The fixing plate (3) is fixed inside the tunnel boring machine (1), the U-shaped plate (4) is clamped on the surface of the fixing plate (3), and the U-shaped plate (4) can move on the surface of the fixing plate (3). The crossbar (8) moves with the U-shaped plate (4). The bottom of the U-shaped plate (4) is fixed with a limiting ring (13), and the limiting ring (13) moves with the U-shaped plate (4).

4. The floating attitude control structure for a tunnel boring machine (TBM) penetrating a pile wall structure in soft soil strata according to claim 3, characterized in that: After the limiting ring (13) moves, it is located in the slot (12) on the surface of the fixed plate (3), and the surface of the tube segment (2) is fixed with an extension rod (7). The end of the extension rod (7) is fixed with a sleeve ring (11). The cross bar (8) is inserted into the inside of the sleeve ring (11), and the cross bar (8) can move inside the sleeve ring (11).

5. The floating attitude control structure for a tunnel boring machine (TBM) penetrating a pile wall structure in soft soil strata according to claim 4, characterized in that: The surface of the hanging ring (6) is provided with a lifting device, which lifts the tube segment (2). The surface of the tube segment (2) is provided with a top holding piece (9), which can move on the surface of the tube segment (2). The bottom of the tube segment (2) is provided with a force plate (10), which is connected to the top holding piece (9). The top holding piece (9) moves with the force plate (10).

6. The floating attitude control structure for a tunnel boring machine (TBM) penetrating a pile wall structure in soft soil strata according to claim 5, characterized in that: The surface of the force plate (10) is fixed with a telescopic rod (18), which moves with the force plate (10). The surface of the tube segment (2) is fixed with an extension block (17), and the extension block (17) is inserted with a telescopic rod (18). The telescopic rod (18) can move inside the extension block (17).

7. The floating attitude control structure for a tunnel boring machine (TBM) penetrating a pile wall structure in soft soil strata according to claim 6, characterized in that: The surface of the telescopic plate (5) is provided with limiting holes (15), and multiple sets of limiting holes (15) are provided. The end of the telescopic rod (18) is fixed with a top holding ball (16), which can be locked in the limiting hole (15).

8. The floating attitude control structure for a tunnel boring machine (TBM) penetrating a pile wall structure in soft soil strata according to claim 7, characterized in that: The telescopic plate (5) is inserted into the end of the tube segment (2) and the telescopic plate (5) can move at the end of the tube segment (2). A spring is provided inside the tube segment (2), with one end of the spring connected to the surface of the telescopic plate (5) and the other end connected to the inside of the tube segment (2).

9. The floating attitude control structure for a tunnel boring machine (TBM) penetrating a pile wall structure in soft soil strata according to claim 8, characterized in that: The telescopic plate (5) rests on the surface of the arc plate (19). The end of the telescopic plate (5) has a groove. The limiting strip (20) can be locked in the groove at the end of the telescopic plate (5). After the segment (2) moves, the force plate (10) rests on the surface of the tunnel boring machine (1). The top plate (9) moves with the force plate (10). The surface of the top plate (9) rests on the surface of the crossbar (8).

10. A method for controlling the floating attitude of a tunnel boring machine (TBM) penetrating a pile wall structure in soft soil strata as described in any one of claims 1-9, characterized in that: Includes the following steps: Step 1: After the cutterhead enters the reinforced zone, select the upper super segment to suppress the shield tail from floating. Step 2: The double beam and the assembly machine each lift one segment of the tunnel segment, and at the same time, bolts are placed on both sides of the walkway near the tail of the shield machine on the connecting bridge of the shield machine to prevent the tail of the shield machine from rising. Step 3: Inject double-liquid grout into the top of the 3-5 rings behind the shield tail to suppress the floating of the segments; Step 4: If the above measures fail to control the situation, use the shield tail opening to grout the top of the shield tail.

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