TBM (Tunnel Boring Machine) deslagging device under site limited condition

Abstract

The utility model discloses a TBM (Tunnel Boring Machine) deslagging device under the condition of limited site, which comprises a track arranged at a TBM starting hole, a track car is arranged on the track, a slag unloading pit is arranged below the tail end of the track, and a movable dump truck is arranged in the slag unloading pit. The device can be applied to limited site conditions such as deep mountains and canyons and can also be used for general wide and flat conditions, muck generated by TBM tunneling can be smoothly conveyed out and conveyed to a specified place, and therefore it is guaranteed that TBM tunneling is smooth, and construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering construction, in particular to a TBM slag discharge device under site restricted conditions. Background Art

[0002] With the development of underground engineering technology and equipment manufacturing, TBM tunnel construction can realize parallel and continuous construction processes such as excavation, support, and slag discharge. It has the advantages of fast excavation speed, environmental protection, and high comprehensive benefits. It has been widely used in railways, water conservancy, municipal engineering and other industries. In conventional TBM construction applications, it is necessary to level a large area at the TBM starting hole to arrange the TBM industrial square to meet the assembly of the TBM and the arrangement of supporting facilities for TBM construction. At the same time, since TBM construction is a continuous operation with a fast excavation speed, the slag discharge is continuous and strong during tunnel excavation, and a slag discharge site is often arranged at the TBM hole.

[0003] In actual construction, especially in the water conservancy and hydropower industry, most projects are located in deep mountain canyons, and the TBM starting tunnels are mostly steep slopes. There are no conditions for leveling a large area at the TBM starting tunnel to arrange an industrial square, nor are there conditions for arranging a flat slag discharge site at the TBM starting tunnel. Utility Model Content

[0004] The technical problem to be solved by the utility model is that, especially in the water conservancy and hydropower industry, most projects are located in deep mountain valleys, and the TBM starting tunnels are mostly steep slopes, which do not have the conditions for arranging a flat slag discharge site at the TBM starting tunnel. The purpose is to provide a TBM slag discharge device under site-constrained conditions.

[0005] The utility model provides a TBM slag discharge device under site-constrained conditions, comprising a track arranged at a TBM starting tunnel entrance, a track car arranged on the track, a slag discharge pit arranged below the end of the track, and a movable dump truck arranged in the slag discharge pit.

[0006] As a possible design, a movable loader is also provided in the slag unloading pit.

[0007] As a possible design, a raised base is provided under the track.

[0008] As a possible design, a fan is provided on one side of the TBM starting tunnel.

[0009] As a possible design, the slag unloading pit includes a receiving chamber and a conveying chamber which are interconnected. The receiving chamber is placed below the end of the track, and the end of the conveying chamber and the parking surface of the dump truck are in the same horizontal plane.

[0010] As a possible design, the conveying chamber is arranged obliquely, and its lower end is communicated with the containing chamber.

[0011] As a possible design, the TBM slag discharge device also includes a controller for controlling the rail car.

[0012] As a possible design, an obstacle is disposed at the end of the track, an obstacle sensor is disposed on the track vehicle, and the obstacle sensor is communicatively connected to the controller.

[0013] As a possible design, a construction power supply station, a concrete mixing system, a processing plant and several warehouses are also set up around the TBM starting tunnel.

[0014] As a possible design, the TBM starting opening is excavated by drilling and blasting method.

[0015] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0016] The utility model is provided with a TBM slag discharge device, which can be applied not only to site restricted conditions, such as deep mountain canyons, but also to generally wide and flat conditions. It can smoothly transport the slag generated by TBM excavation to a specified place, thereby ensuring smooth excavation of the TBM and improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0018] Figure 1 Schematic diagram of the TBM slag discharge device in the embodiment.

[0019] Figure 2 It is a top view of the TBM slag discharge device in the embodiment.

[0020] Marks and corresponding parts names in the attached drawings:

[0021] 1-TBM starting tunnel, 2-raised base, 3-track, 4-railway car, 5-loader, 6-dump truck, 7-slag pit, 8-slag. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation methods of the utility model and their descriptions are only used to explain the utility model and are not intended to limit the utility model.

[0023] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The meaning of "several" is one or more, unless otherwise clearly and specifically defined.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0026] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] Most water conservancy and hydropower projects are located in deep mountains and canyons. The TBM starting tunnels are mostly steep slopes. There are no conditions for leveling a large area at the TBM starting tunnel to arrange an industrial square. Therefore, the current TBM construction requirements cannot be met in deep mountains and canyons.

[0028] In response to the above problems, Figure 1 As shown, the utility model discloses a TBM slag discharge device under site-constrained conditions, which ensures that the slag generated by TBM excavation can be transported out by building a reasonable platform. Figure 1As shown, under the condition of limited site, the TBM slag discharge device includes a track 3 arranged at the TBM starting tunnel 1, a raised base is arranged under the track 3, a track car 4 is arranged on the track 3, a slag discharge pit 7 is arranged below the end of the track 3, and a movable dump truck 6 is arranged in the slag discharge pit 7. The track car 4 enters the tunnel excavated by the TBM, transports the slag 8 to the end of the track 3, and then dumps it into the dump truck 6 in the slag discharge pit 7. The slag 8 is transported to a specified place by the movement of the dump truck 6, thereby ensuring the smooth excavation of the TBM.

[0029] Generally, the TBM starting hole 1 is excavated by drilling and blasting, so the size of the TBM starting hole 1 should meet the requirements of TBM assembly and entry, and the size of the TBM starting hole 1 should meet the requirements of railcar 4 slag unloading, and the size of the slag unloading pit 7 should meet the requirements of slag unloading and transportation equipment such as loaders 5 and dump trucks 6 that match the TBM slag unloading strength. The hole is mainly used as a site for railcar 4 to load materials and unload slag.

[0030] It should be noted that the end of the track 3 refers to the end of the track 3 farthest from the TBM starting tunnel 1.

[0031] It should be noted that the track 3, the track vehicle 4 and the dump truck 6 involved in the present invention are all existing equipment, so their structures will not be described in detail here.

[0032] In actual application, in order to facilitate the entry and exit of vehicles, cement can be used to harden the slag unloading pit 7, and railings are arranged around the slag unloading pit 7 (except for the direction of vehicle entry) to prevent slag from leaking everywhere and facilitate centralized management of slag unloading.

[0033] In actual application, if the depth of the slag pit 7 does not match the height of the dump truck 6, the mismatch here mainly refers to that the depth of the slag pit 7 is less than the height of the dump truck 6, then the dump truck 6 cannot directly receive the slag 8 from the rail car 4. Figure 1 As shown, a loader 5 , such as a bulldozer or an excavator, can be arranged in the slag unloading pit 7 . The slag 8 is first unloaded into the slag unloading pit 7 , and then the loader 5 transfers it to the dump truck 6 .

[0034] like Figure 1 As shown, the slag pit 7 includes a receiving chamber and a conveying chamber that are interconnected. The receiving chamber is placed below the end of the track 3 and is used to receive the slag 8 from the rail car 4. The end of the conveying chamber and the parking surface of the dump truck 6 are in the same horizontal plane. Generally, the dump truck 6 is parked on the horizontal plane at the end of the conveying chamber, and the loader 5 transports the slag 8 in the receiving chamber to the dump truck 6, and this process needs to pass through the conveying chamber. When the slag 8 is not being transported, the loader 5 is generally parked in the conveying chamber.

[0035] In order to smoothly transport the slag 8, it is generally necessary to set a raised base 2 under the track 3. The raised base 2 is generally a concrete base. In this case, the track 3 can be set to form a certain height difference with the bottom of the slag unloading pit 7 when it is a certain distance away from the TBM starting hole 1, so that when the rail car 4 exits the TBM starting hole 1, it can smoothly enter the vicinity of the slag unloading pit 7 to unload the slag 8.

[0036] In practical applications, such as Figure 1 As shown, a fan is provided on one side of the TBM starting tunnel 1 to ventilate the tunnel so that the TBM can be excavated smoothly.

[0037] In order to improve the automation of the slag discharge process, the TBM slag discharge device also includes a controller for controlling the rail car 4. The controller controls the movement of the rail car 4 and the dumping of the slag 8, avoiding manual operation, improving the transportation efficiency of the slag 8, and also improving the TBM excavation speed.

[0038] In order to further improve the automation of the slag discharge process, an obstacle is provided at the end of the track 3, and an obstacle sensor is provided on the track car 4, and the obstacle sensor is communicatively connected to the controller. When the obstacle sensor senses an obstacle and transmits the distance between the two to the controller, the controller controls the speed of the track car 4 according to the distance so that it just stays at the desired position, and the desired position here is not limited to the end of the track 3. The dumping of the slag 8 in the track car 4 can also be controlled to improve the slag discharge efficiency.

[0039] It should be noted that the controller and obstacle sensor are both commonly used devices in this field, and the control logic is also existing or can be obtained by simple transformation of the existing logic. The simple transformation here means that no creative labor is required.

[0040] A construction power supply station, a concrete mixing system, a processing plant and several warehouses are also arranged around the TBM starting tunnel 1. The construction power supply station, the concrete mixing system, the processing plant and several warehouses can be arranged in a relatively flat position around the TBM starting tunnel 1, and traffic can be passed between them, and the traffic conditions meet the construction transportation requirements.

[0041] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A TBM slag discharge device under site-constrained conditions, characterized in that: It comprises a track arranged at the starting tunnel entrance of the TBM, a track car is arranged on the track, a slag unloading pit is arranged below the end of the track, and a movable dump truck is arranged in the slag unloading pit.

2. The TBM slag discharge device under site-constrained conditions according to claim 1, characterized in that: A loader is also provided in the slag unloading pit.

3. The TBM slag discharge device under site-constrained conditions according to claim 1, characterized in that: A raised base is arranged below the track.

4. The TBM slag discharge device under site-constrained conditions according to claim 1, characterized in that: A fan is arranged on one side of the TBM starting tunnel.

5. The TBM slag discharge device under site-constrained conditions according to claim 2, characterized in that: The slag unloading pit comprises a receiving chamber and a conveying chamber which are interconnected. The receiving chamber is arranged below the end of the track, and the end of the conveying chamber and the parking surface of the dump truck are in the same horizontal plane.

6. The TBM slag discharge device under site-constrained conditions according to claim 5, characterized in that: The conveying chamber is arranged obliquely, and a lower end thereof is communicated with the containing chamber.

7. The TBM slag discharge device under site-constrained conditions according to claim 1, characterized in that: The TBM slag discharge device also includes a controller for controlling the rail car.

8. The TBM slag discharge device under site-constrained conditions according to claim 7, characterized in that: An obstacle is arranged at the end of the track, an obstacle sensor is arranged on the track vehicle, and the obstacle sensor is communicatively connected with the controller.

9. The TBM slag discharge device under site-constrained conditions according to claim 1, characterized in that: A construction power supply station, a concrete mixing system, a processing plant and several warehouses are also arranged around the TBM starting tunnel.

10. The TBM slag discharge device under site-constrained conditions according to claim 1, characterized in that: The TBM starting opening is excavated by drilling and blasting method.

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