Construction system of inclined shaft TBM (Tunnel Boring Machine)

Abstract

The utility model discloses an inclined shaft TBM tunneling machine construction system which comprises an inclined shaft and a TBM tunneling machine, bottom rails are arranged on the two sides of the bottom of the inclined shaft respectively, the TBM tunneling machine is movably arranged on the bottom rails, and a conveying belt conveyor and a chute which are arranged in the extending direction of the inclined shaft are arranged on one side of the bottom of the inclined shaft. The upper end of the conveying belt conveyor extends to the position below the middle of the TBM, the lower end of the conveying belt conveyor extends to the designated position behind the TBM, the upper end of the chute is in butt joint with the lower end of the conveying belt conveyor, and a slag outlet of the TBM is in butt joint with the position above the conveying belt conveyor. According to the inclined shaft TBM tunneling machine construction system, the set length of the conveying belt conveyor is reduced, and the manufacturing and maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, specifically to a TBM tunneling machine construction system for inclined shafts. Background Technology

[0002] In the construction of inclined shaft TBMs for water diversion tunnels, the design and installation of the muck removal system face significant challenges due to complex geological conditions and spatial constraints. A Chinese patent application with application number 201310726746.6 discloses a muck removal method for long-distance inclined shafts, specifically including the following steps: muck falls onto a central conveyor belt; the central conveyor belt transports the muck to a transfer conveyor belt; the transfer conveyor belt transports the muck to a continuous inclined conveyor belt; and the continuous inclined conveyor belt transports the muck outside the shaft, completing the muck removal. On the one hand, during the TBM excavation process, muck is removed from the shaft to the transfer conveyor belt at the entrance via a continuous inclined conveyor belt located behind the tunnel, and then transported out by a muck transfer conveyor belt. This continuous inclined conveyor belt is long, resulting in high manufacturing and maintenance costs. On the other hand, the TBM construction involves connection between the central conveyor belt and the transfer conveyor belt. The central conveyor belt is located in the middle of the tunnel, occupying a large space, and its unreasonable location hinders the backward movement of the TBM, thus affecting the TBM construction. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a TBM tunneling machine construction system for inclined shafts that reduces the installation length of the conveyor belt and lowers the manufacturing and maintenance costs.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A TBM tunneling machine construction system for inclined shafts includes an inclined shaft and a TBM tunneling machine. Bottom rails are provided on both sides of the bottom of the inclined shaft. The TBM tunneling machine is movably mounted on the bottom rails. A conveyor belt and a chute are provided on one side of the bottom of the inclined shaft, extending along the direction of the inclined shaft. The upper end of the conveyor belt extends to below the middle of the TBM tunneling machine, and the lower end extends to a designated position behind the TBM tunneling machine. The upper end of the chute is connected to the lower end of the conveyor belt, and the muck outlet of the TBM tunneling machine is connected to the upper part of the conveyor belt.

[0006] As a further improvement to the above technical solution:

[0007] The conveyor belt includes a drive roller, a redirecting roller, and a conveyor belt. The drive roller is located at a designated position and is connected to a drive mechanism. The redirecting roller is located below the middle of the TBM tunneling machine. The conveyor belt is wound between the drive roller and the redirecting roller.

[0008] The bottom of the inclined shaft is detachably provided with a redirecting support, and the redirecting roller is provided on the redirecting support. The bottom of the inclined shaft is provided with an active support, and the active roller is provided on the active support.

[0009] The active support is fixedly connected to the bottom rail.

[0010] The conveyor belt is located below the top surface of the bottom rail and between the bottom rails on both sides of the inclined shaft.

[0011] The transport belt is offset to one side of the center of the inclined shaft.

[0012] At the bottom of the inclined shaft, between the drive drum and the redirecting drum, there are multiple support drums arranged at intervals along the extension direction of the inclined shaft, and the conveyor belt is supported on the support drums.

[0013] The inclined shaft includes an inclined section, an arc section, and a straight section connected sequentially from bottom to top. The designated position is located on the arc section, and the arc length between the designated position and the top of the arc section is set as β, which satisfies 45°≤β≤50°.

[0014] β=48.5°.

[0015] The TBM tunneling machine has an inclined chute at its slag outlet, and a guide hopper at the bottom of the inclined chute, which is connected to the top of the conveyor belt.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] This utility model discloses a TBM tunneling machine construction system for inclined shafts. The TBM transports the excavated material through the excavation port to a conveyor belt, which then transports the material to a chute. The material then slides down the chute under gravity to a predetermined location. This inclined shaft TBM construction system, taking advantage of the structural characteristics of inclined shafts, utilizes the combined operation of the conveyor belt and chute to transport the excavated material to the designated location, reducing the length of the conveyor belt and thus lowering manufacturing and maintenance costs. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of the inclined shaft TBM tunneling machine construction system of this utility model.

[0019] Figure 2 This is a schematic diagram of the active support structure of the inclined shaft TBM tunneling machine construction system of this utility model.

[0020] Figure 3 This is a schematic diagram of the reversing support structure of the inclined shaft TBM tunneling machine construction system of this utility model.

[0021] Figure 4 This is a schematic diagram of the support roller structure of the inclined shaft TBM tunneling machine construction system of this utility model.

[0022] The labels in the diagram represent:

[0023] 1. Inclined shaft; 11. Inclined section; 12. Arc section; 13. Straight section; 2. TBM (Tunnel Boring Machine); 3. Bottom rail; 4. Conveyor belt conveyor; 41. Drive drum; 42. Idling drum; 43. Conveyor belt; 44. Drive mechanism; 45. Support drum; 5. Chute; 6. Designated position; 7. Idling support; 8. Drive support; 9. Inclined chute; 91. Guide hopper. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Figures 1 to 4This invention illustrates an embodiment of the inclined shaft TBM tunneling machine construction system. The system includes an inclined shaft 1 and a TBM 2. Bottom rails 3 are provided on both sides of the bottom of the inclined shaft 1. The TBM 2 is movably mounted on the bottom rails 3. A conveyor belt 4 and a chute 5 are provided on one side of the bottom of the inclined shaft 1, extending along the direction of the inclined shaft 1. The upper end of the conveyor belt 4 extends to below the middle of the TBM 2, and the lower end extends to a designated position 6 behind the TBM 2. The upper end of the chute 5 connects to the lower end of the conveyor belt 4, and the muck outlet of the TBM 2 connects to the upper part of the conveyor belt 4.

[0029] In this inclined shaft TBM tunneling system, the TBM 2 transports the excavated material through the excavation port to the conveyor belt 4, which then transports it to the chute 5. The excavated material then slides down the chute 5 under gravity to its designated location. This inclined shaft TBM tunneling system, taking advantage of the structural characteristics of the inclined shaft 1, utilizes the cooperation of the conveyor belt 4 and the chute 5 to transport the excavated material to the designated location, reducing the length of the conveyor belt 4 and thus lowering manufacturing and maintenance costs.

[0030] Furthermore, in this embodiment, the conveyor belt 4 includes a drive roller 41, a redirecting roller 42, and a conveyor belt 43. The drive roller 41 is located at a designated position 6 and connected to a drive mechanism 44. The redirecting roller 42 is located below the center of the TBM tunneling machine 2. The conveyor belt 43 is wound between the drive roller 41 and the redirecting roller 42. The drive mechanism 44 is used to drive the drive roller 41 to rotate, thereby driving the conveyor belt 43 to run and realize the conveying of slag.

[0031] Furthermore, in this embodiment, a redirecting support 7 is detachably provided at the bottom of the inclined shaft 1, and a redirecting roller 42 is provided on the redirecting support 7. An active support 8 is provided at the bottom of the inclined shaft 1, and an active roller 41 is provided on the active support 8. The redirecting support 7 is detachably provided and can be moved forward to adjust its position as the TBM tunneling machine 2 tunnels deeper. For example, after the TBM tunneling machine 2 tunnels a specified distance, it can retreat to make room for the redirecting support 7. Then, the redirecting support 7 can be moved forward a corresponding distance. Finally, the TBM tunneling machine 2 can be moved forward to a position above the upper end (or front end) of the conveyor belt 4 in its middle section, in preparation for tunneling construction again.

[0032] Furthermore, in this embodiment, as Figure 2 As shown, the active support 8 is fixedly connected to the bottom rail 3 to improve the structural strength and stability.

[0033] Furthermore, in this embodiment, as Figure 2 and Figure 3As shown, the conveyor belt 43 is located below the top surface of the bottom rail 3 and between the bottom rails 3 on both sides of the inclined shaft 1. In this way, it does not obstruct the backward movement of the TBM tunneling machine, thereby avoiding affecting the TBM construction.

[0034] Furthermore, in this embodiment, the conveyor belt 43 is offset to one side (left or right) of the center of the inclined shaft 1. If the conveyor belt 43 is offset to the right of the center of the inclined shaft 1, it frees up space on the left side of the center of the inclined shaft 1, reducing space occupation and improving the rationality of its position. Preferably, the distance between the center of the conveyor belt 43 and the center of the inclined shaft 1 on the horizontal plane is 930mm. Further, the conveyor belt 43 is 600mm wide, and its maximum transport capacity can reach 350t / h.

[0035] Furthermore, in this embodiment, as Figure 1 and Figure 4 As shown, at the bottom of the inclined shaft 1, there are multiple support rollers 45 arranged at intervals along the extension direction of the inclined shaft 1 between the drive roller 41 and the redirecting roller 42, and the conveyor belt 43 is supported on the support rollers 45.

[0036] Furthermore, in this embodiment, as Figure 1 As shown, the inclined shaft 1 includes an inclined section 11, an arc-shaped section 12, and a straight section 13 connected sequentially from bottom to top. A designated position 6 is located on the arc-shaped section 12, and the arc length between the designated position 6 and the top of the arc-shaped section 12 is set as β, satisfying 45°≤β≤50°. Preferably, the inclination angle of the inclined section 11 is 50°.

[0037] Furthermore, in this embodiment, β = 48.5°. When the tunnel reaches the position of approximately 48.5° in the arc section 12, as the angle decreases, the slag is prone to accumulate, reducing the slag removal efficiency. At this time, the conveyor belt 4 effectively solves this problem, greatly enhancing the slag removal efficiency.

[0038] Furthermore, in this embodiment, the TBM tunneling machine 2 has a chute 9 at its slag outlet, and a guide hopper 91 at the bottom of the chute 9, which is connected to the top of the conveyor belt 4. The chute 9 and the guide hopper 91 facilitate the accurate delivery of slag to the conveyor belt 4.

[0039] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A TBM tunneling machine construction system for inclined shafts, comprising an inclined shaft (1) and a TBM tunneling machine (2), wherein bottom rails (3) are respectively provided on both sides of the bottom of the inclined shaft (1), and the TBM tunneling machine (2) is movably mounted on the bottom rails (3), characterized in that: The bottom side of the inclined shaft (1) is provided with a conveyor belt (4) and a chute (5) arranged along the extension direction of the inclined shaft (1). The upper end of the conveyor belt (4) extends to the lower part of the middle of the TBM tunneling machine (2) and the lower end extends to a designated position (6) behind the TBM tunneling machine (2). The upper end of the chute (5) is connected to the lower end of the conveyor belt (4), and the slag outlet of the TBM tunneling machine (2) is connected to the upper part of the conveyor belt (4).

2. The inclined shaft TBM jumbo construction system of claim 1, characterized in that: The conveyor belt (4) includes a drive roller (41), a redirecting roller (42) and a conveyor belt (43). The drive roller (41) is located at a designated position (6) and is connected to a drive mechanism (44). The redirecting roller (42) is located below the middle of the TBM tunneling machine (2). The conveyor belt (43) is wound between the drive roller (41) and the redirecting roller (42).

3. The inclined shaft TBM jumbo construction system of claim 2, characterized in that: The bottom of the inclined shaft (1) is detachably provided with a redirection bracket (7), the redirection roller (42) is provided on the redirection bracket (7), the bottom of the inclined shaft (1) is provided with an active bracket (8), and the active roller (41) is provided on the active bracket (8).

4. The inclined shaft TBM jumbo construction system of claim 3, characterized in that: The active support (8) is fixedly connected to the bottom rail (3).

5. The inclined shaft TBM jumbo construction system of claim 2, characterized by: The conveyor belt (43) is located below the top surface of the bottom rail (3) and between the bottom rails (3) on both sides of the inclined shaft (1).

6. The inclined shaft TBM jumbo construction system of claim 2, characterized by: The transport belt (43) is offset to one side of the center of the inclined shaft (1).

7. The inclined shaft TBM jumbo drilling machine construction system of claim 2, characterized by: At the bottom of the inclined shaft (1), there are multiple support rollers (45) arranged at intervals along the extension direction of the inclined shaft (1) between the drive roller (41) and the redirecting roller (42), and the conveyor belt (43) is supported on the support rollers (45).

8. The inclined shaft TBM jumbo drilling machine construction system according to any one of claims 1 to 7, characterized by: The inclined shaft (1) includes an inclined section (11), an arc section (12) and a straight section (13) connected from bottom to top. The designated position (6) is located on the arc section (12), and the arc length between the designated position (6) and the top of the arc section (12) is set as β, which satisfies 45°≤β≤50°.

9. The inclined shaft TBM jumbo drilling machine construction system of claim 8, characterized by: β=48.5°。 10. The inclined shaft TBM jumbo drilling machine construction system according to any one of claims 1 to 7, characterized by: The TBM tunneling machine (2) has a chute (9) at its slag outlet, and a guide hopper (91) is provided at the bottom of the chute (9). The guide hopper (91) is connected to the top of the conveyor belt (4).

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