TBM (Tunnel Boring Machine) deslagging pipeline structure for inclined shaft

Abstract

The utility model provides a slag discharging pipeline structure for an inclined shaft TBM. Part of space is reserved in inclined shaft foundation structure construction to serve as a slag sliding channel. The device further comprises first steel reinforcement frameworks and second steel reinforcement frameworks, and the multiple first steel reinforcement frameworks are parallel to the circumferential face of the slag sliding channel and distributed in a circumferential array mode in the circumferential direction of the slag sliding channel. The second steel reinforcement frameworks are annular steel reinforcement frameworks, the multiple second steel reinforcement frameworks are arranged in a linear array mode in the axial direction of the slag slipping channel, and the first steel reinforcement frameworks, the second steel reinforcement frameworks and foundation structure steel bars are bound and welded; the slag sliding winding drum is arranged in the slag sliding channel and fixedly welded to the first steel reinforcement framework and the second steel reinforcement framework. By means of the inclined shaft TBM deslagging pipeline structure, continuous slag discharging in the TBM tunneling period is achieved, the difficulties that the inclined shaft construction deslagging speed is high and blockage is prone to occurring are relieved, independent operation spaces are separated in a TBM equipment working area, the independent operation spaces are effectively connected with a slag-water separation system, installation, inspection and maintenance are easy, and the structure is simple.

Description

Technical Field

[0001] The present application relates to the technical field of inclined shaft TBM deslagging pipeline structure construction, and in particular to an inclined shaft TBM deslagging pipeline structure. Background Art

[0002] TBM equipment, or Tunnel Boring Machine, is a large-scale mechanical equipment used for tunnel excavation. It integrates multiple construction processes such as excavation, support, and slag removal, and can operate in parallel and continuously to achieve factory-like assembly line tunnel construction.

[0003] In inclined shaft tunnel construction, inclined shaft TBM equipment has the characteristics of large slag discharge volume and fast slag discharge speed. Due to the slope of the inclined shaft, the slag generated during the excavation process can flow to the slag discharge port more quickly. However, due to the limited assembly cavern space in inclined shaft TBM construction, the layout of the construction equipment and the working space are restricted, which limits the transmission distance of the slag transport belt. In addition, the slag water discharge needs to be graded and filtered and purified, which further increases the complexity of the slag discharge system. Once the slag discharge pipeline is blocked, a large amount of slag will quickly accumulate at the slag outlet, which is difficult to clean, which can easily cause the TBM equipment to be forced to shut down and may also cause safety accidents. Utility Model Content

[0004] The present application provides a slag discharge pipe structure for an inclined shaft TBM, which solves the problems of low slag discharge efficiency and easy blockage by slag in the current inclined shaft construction by optimizing the structure and layout of the slag discharge pipe.

[0005] The present application provides a slag discharge pipe structure for an inclined shaft TBM, which is fixed in the inclined shaft foundation by pouring concrete. The inclined shaft foundation contains foundation structure steel bars, and also includes a first steel bar skeleton, a second steel bar skeleton and a slag drum; part of the space is reserved as a slag channel during the construction of the inclined shaft foundation structure; a plurality of the first steel bar skeletons are arranged along the direction of the slag channel and parallel to the circumferential surface of the slag channel, and a plurality of the first steel bar skeletons are parallel to each other and distributed in a circular array along the circumference of the slag channel; the second steel bar skeleton is an annular steel bar skeleton, and a plurality of the second steel bar skeletons are arranged in an axial linear array along the slag channel, and the first steel bar skeleton, the second steel bar skeleton and the foundation structure steel bars are tied and welded and fixed; the slag drum is arranged in the slag channel, and the slag drum is welded and fixed to the first steel bar skeleton and the second steel bar skeleton.

[0006] In a feasible implementation, one end of the slag chute is located on the slope of the inclined shaft foundation, the other end of the slag chute is located on the side of the inclined shaft foundation, and the bending angle θ of the slag chute is greater than 135°.

[0007] In a feasible implementation, the diameter of the slag drum is 30 cm-50 cm.

[0008] In a feasible implementation, the slag reel is a steel reel.

[0009] In a feasible implementation, the distance between two adjacent first steel bar skeletons is 3 cm-10 cm.

[0010] In a feasible implementation, the distance between two adjacent second steel bar skeletons is 8 cm-20 cm.

[0011] In a feasible implementation, arc welding is used for welding the first steel skeleton, the second steel skeleton and the basic structure steel bars.

[0012] The present application provides a slag discharge pipeline structure for inclined shaft TBM, in which part of the space is reserved as a slag channel during the construction of the inclined shaft foundation structure; a plurality of first steel bar skeletons are arranged parallel to the circumference of the slag channel along the direction of the slag channel, and a plurality of first steel bar skeletons are parallel to each other and distributed in a circumferential array along the circumference of the slag channel; the second steel bar skeleton is a circumferential steel bar skeleton, and a plurality of second steel bar skeletons are arranged in a linear array along the axial direction of the slag channel, and the first steel bar skeleton, the second steel bar skeleton and the foundation structure steel bars are tied and welded and fixed; the slag discharge drum is arranged in the slag channel, and the slag discharge drum is welded and fixed to the first steel bar skeleton and the second steel bar skeleton. Through the inclined shaft TBM slag discharge pipeline structure provided by the present application, continuous slag discharge can be achieved during TBM excavation, and the difficulties of fast slag discharge speed and easy slag blockage in inclined shaft construction can be alleviated. An independent working space is separated in the working area of ​​the TBM equipment, which is effectively connected with the slag-water separation system, easy to install, inspect and maintain, and has a simple structure, so as to prevent the equipment from being forced to shut down due to slag discharge obstruction, which has an adverse effect on the overall progress and safety of tunnel construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0014] Figure 1 This is a schematic diagram of the installation position of the inclined shaft TBM slag discharge pipeline structure provided in this application;

[0015] Figure 2 This is a top view schematic diagram of the inclined shaft TBM slag discharge pipeline structure provided by the present application;

[0016] Figure 3This is a schematic diagram of the main view of the inclined shaft TBM slag discharge pipeline structure provided in this application.

[0017] Description of reference numerals:

[0018] Among them, 1-foundation steel structure; 11-slag chute; 12-inclined shaft foundation; 2-first steel skeleton; 3-second steel skeleton; 4-slag drum; 5-slag chute; 6-tunnel chamber. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0020] During tunnel excavation, the TBM uses the roller on the cutter head to break the rock and crush the rock into slag. These slags need to be discharged from the tunnel in time to avoid excessive accumulation and hinder the excavation work, and also to maintain the space and structural stability of the tunnel. Because the TBM equipment has the characteristics of large slag discharge volume and fast slag discharge speed. In inclined shaft construction, the slope of the inclined shaft allows the slag generated during the excavation process to flow to the slag discharge port more quickly. However, due to the limited assembly cavern space in the inclined shaft TBM construction, the layout and working space of the construction equipment are limited, which limits the transmission distance of the slag transport belt. In addition, the slag water discharge needs to be graded and filtered and purified, which further increases the complexity of the slag discharge system. Once the slag discharge pipeline is blocked, a large amount of slag will quickly accumulate at the slag outlet, which is difficult to clean, which can easily cause the TBM equipment to be forced to shut down and may also cause safety accidents. The slag discharge pipeline structure provided in this application is easy to install, inspect, and maintain, and has a simple structure. By optimizing the structure and layout of the slag discharge pipeline, the problem of low slag discharge efficiency and easy clogging of slag in the current inclined shaft construction is solved.

[0021] The following is a detailed description of the inclined shaft TBM slag discharge pipeline structure provided by the present application in conjunction with the accompanying drawings.

[0022] Reference Figure 1 As shown, Figure 1This is a schematic diagram of the installation position of the inclined shaft TBM slag discharge pipe structure provided by the present application. The inclined shaft TBM slag discharge pipe structure provided by the present application is fixed in the inclined shaft foundation 12 by concrete pouring, so that the slag discharge pipe and the inclined shaft foundation are tightly combined to prevent the displacement or damage of the pipe due to vibration, thereby ensuring the stability and durability of the slag discharge pipe. During operation, the TBM equipment excavates in the tunnel chamber 6, and the generated slag enters the slag discharge pipe through the slag chute 5 and is discharged through the slag discharge pipe. The slag chute 5 is a key component connecting the TBM equipment and the slag discharge pipe, which guides the slag generated by the TBM equipment during the excavation process to the slag discharge pipe. The slag chute 5 ensures that the slag can enter the slag discharge pipe smoothly.

[0023] Reference Figure 2 and Figure 3 As shown, Figure 2 This is a top view schematic diagram of the inclined shaft TBM slag discharge pipeline structure provided by this application. Figure 3 It is a schematic diagram of the main view of the inclined shaft TBM slag discharge pipeline structure provided by the present application. The inclined shaft TBM slag discharge pipeline structure provided by the present application is arranged in the inclined shaft foundation, and the inclined shaft foundation contains foundation structure steel bars 1, and the inclined shaft TBM slag discharge pipeline includes a first steel bar skeleton 2, a second steel bar skeleton 3 and a slag chute drum 4; a part of the space is reserved as a slag chute channel 11 during the construction of the inclined shaft foundation structure; a plurality of first steel bar skeletons 2 are arranged along the direction of the slag chute channel 11 and parallel to the circumferential surface of the slag chute channel 11, and a plurality of first steel bar skeletons 2 are parallel to each other and distributed in a circumferential array along the slag chute channel 11; the second steel bar skeleton 3 is a circumferential steel bar skeleton, and a plurality of second steel bar skeletons 3 are arranged in an axial linear array along the slag chute channel 11, and the first steel bar skeleton 2, the second steel bar skeleton 3 and the foundation structure steel bar 1 are tied and welded and fixed; the slag chute drum 4 is arranged in the slag chute channel 11, and the slag chute drum 4 is welded and fixed to the first steel bar skeleton 2 and the second steel bar skeleton 3.

[0024] In the present application, the inclined shaft foundation is the supporting part of the entire slag discharge pipeline structure. The setting of the foundation structure steel bar 1 increases the strength of the inclined shaft foundation. The first steel bar skeleton 2 is set parallel to the circumferential surface along the direction of the slag chute 11 and is distributed in a circumferential array. This design ensures the structural strength of the slag chute and enhances its ability to withstand the impact of slag, thereby improving the stability of the slag discharge pipeline. The second steel bar skeleton 3 is a circumferential steel bar skeleton, which is set in an axial linear array along the slag chute 11, and together with the first steel bar skeleton 2 and the foundation structure steel bar 1, it forms a solid steel bar skeleton system, which effectively improves the bearing capacity and anti-deformation capacity of the entire slag discharge pipeline structure. The first steel bar skeleton 2, the second steel bar skeleton 3 and the foundation structure steel bar 1 are tied and welded to fix. This design enables the first steel bar skeleton 2, the second steel bar skeleton 3 and the foundation structure steel bar 1 to form a complete steel bar skeleton system, which can withstand the impact of slag when slag is discharged, and has sufficient stability and bearing capacity.

[0025] In some embodiments, one end of the slag channel 11 is located on the slope of the inclined shaft foundation, and the other end of the slag channel 11 is located on the side of the inclined shaft foundation, and the bending angle θ of the slag channel 11 is greater than 135°. One end of the slag channel 11 is located on the slope of the inclined shaft foundation, and the other end is located on the side of the inclined shaft foundation, and the bending angle θ is greater than 135°. This design allows the slag to flow more smoothly in the slag channel, reduces the possibility of blockage, and improves the slag discharge efficiency.

[0026] In some embodiments, the diameter of the slag drum is 30 cm to 50 cm.

[0027] In some embodiments, the slag discharge drum 4 is a steel drum. The steel drum has good strength and wear resistance, can effectively resist the scouring and wear of slag, and prolong the service life of the slag discharge pipeline.

[0028] In some embodiments, the distance between two adjacent first steel bar skeletons 2 is 3 cm-10 cm.

[0029] In some embodiments, the distance between two adjacent second steel bar skeletons 3 is 8 cm-20 cm.

[0030] The distance between two adjacent first steel skeletons 2 and two adjacent second steel skeletons 3 can be set according to the material and size of the slag produced by the TBM equipment excavation and the construction plan of the specific project. This embodiment is only used as an illustrative example. Reasonable design spacing can make the steel skeleton better disperse and bear the load, and improve the overall performance of the slag discharge pipeline.

[0031] In some embodiments, arc welding is used to weld the first steel skeleton 2, the second steel skeleton 3 and the basic structure steel bars 1. This welding method has a strong weld and high strength, ensures a reliable connection between the steel skeletons, and improves the stability and safety of the entire slag discharge pipeline structure.

[0032] The present application provides a TBM slag discharge pipe structure for an inclined shaft, which is fixed in the inclined shaft foundation by concrete pouring to ensure that the slag discharge pipe is closely integrated with the inclined shaft foundation. The main components include a first steel frame, a second steel frame, a slag roll and a reserved slag channel. The first steel frame, the second steel frame and the foundation structure steel bars together constitute a solid steel frame system, which effectively improves the bearing capacity and deformation resistance of the entire slag discharge pipe structure. As a key component, the slag chute guides the slag generated by the TBM equipment during the excavation process into the slag discharge pipe to ensure that the slag enters the slag discharge pipe smoothly. The slag channel is designed to have a bending angle greater than 135°, so that the slag can flow more smoothly, reduce blockage and improve slag discharge efficiency. The slag roll is a steel roll with good strength and wear resistance, which can effectively resist the scouring and wear of the slag and extend the service life of the slag discharge pipe. The distance between two adjacent first steel frames and two adjacent second steel frames can be set according to the material, size and specific construction plan of the slag to optimize the overall performance of the slag discharge pipe. The inclined shaft TBM slag discharge pipeline structure provided in this application has the advantages of high stability, high slag discharge efficiency, and long service life, and is suitable for various inclined shaft TBM slag discharge projects.

[0033] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on the several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0034] The above specific implementation methods further explain in detail the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above are only specific implementation methods of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A slag discharge pipe structure for a TBM in an inclined shaft, fixed in an inclined shaft foundation (12) by pouring concrete, wherein the inclined shaft foundation contains foundation structural steel bars (1), characterized in that: It also includes a first steel bar skeleton (2), a second steel bar skeleton (3) and a slag chute drum (4); a portion of space is reserved during the construction of the inclined shaft foundation structure as a slag chute (11); a plurality of the first steel bar skeletons (2) are arranged along the direction of the slag chute (11) and in parallel with the circumferential surface of the slag chute (11); a plurality of the first steel bar skeletons (2) are parallel to each other and are distributed in a circular array along the circumference of the slag chute (11); the second steel bar skeleton (3) is an annular steel bar skeleton, a plurality of the second steel bar skeletons (3) are arranged in an axial linear array along the slag chute (11); the first steel bar skeleton (2), the second steel bar skeleton (3) and the foundation structure steel bars (1) are tied and welded to each other; the slag chute drum (4) is arranged in the slag chute (11), and the slag chute drum (4) is welded to the first steel bar skeleton (2) and the second steel bar skeleton (3).

2. The slag removal pipeline structure for inclined shaft TBM according to claim 1 is characterized in that: One end of the slag channel (11) is located on the slope of the inclined shaft foundation, and the other end of the slag channel (11) is located on the side of the inclined shaft foundation. The bending angle θ of the slag channel (11) is greater than 135°.

3. The slag discharge pipe structure for inclined shaft TBM according to claim 2 is characterized in that: The diameter of the slag roller (4) is 30cm-50cm.

4. The slag removal pipeline structure for inclined shaft TBM according to claim 1 is characterized in that: The slag roller (4) is a steel roller.

5. The slag discharge pipe structure for inclined shaft TBM according to claim 1 is characterized in that: The distance between two adjacent first steel bar skeletons (2) is 3 cm-10 cm.

6. The slag removal pipeline structure for inclined shaft TBM according to claim 1 is characterized in that: The distance between two adjacent second steel bar skeletons (3) is 8 cm-20 cm.

7. The slag removal pipeline structure for inclined shaft TBM according to claim 1 is characterized in that: Arc welding is used to weld the first steel bar skeleton (2), the second steel bar skeleton (3) and the basic structure steel bars (1).

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