Drainage system for TBM construction

Abstract

The utility model relates to the technical field of water conservancy projects, in particular to a drainage system for TBM construction. The drainage system for TBM construction comprises a guide wall, a sewage sedimentation tank, a sewage treatment system and a water supply system. The guide wall is used for being arranged at the intersection of a TBM construction hole and an exploration hole, and the guide wall is used for guiding sewage in the TBM construction hole to the exploration hole; the sewage sedimentation tank is used for being arranged in an exploration hole and comprises a sedimentation tank, side walls and arch walls, the side walls are connected to the outer side of the sedimentation tank and used for being connected with the side walls of the exploration hole, and the arch walls are connected with the side walls and used for being connected with the top wall of the exploration hole; the sewage treatment system is arranged in an exploration hole and is connected with the sewage sedimentation tank; the water supply system is connected with the sewage treatment system and used for being connected with TBM equipment. The drainage device is suitable for the TBM construction tunnel, and the occupied space of the TBM construction tunnel is small during drainage of the TBM construction tunnel.

Description

Technical Field

[0001] The present application relates to the technical field of water conservancy engineering, and in particular to a drainage system for TBM construction. Background Art

[0002] With the development of water conservancy and hydropower engineering technology and equipment manufacturing, TBM has been widely used in railway, highway, municipal, water conservancy and hydropower projects due to its strong adaptability, safety and reliability, high construction safety performance, good construction environment conditions and high degree of mechanization. It can not only be used for the excavation of permanent tunnels, but also for the excavation of some preliminary exploration tunnels, which greatly improves the efficiency and footage of tunnel excavation, improves the construction environment in the tunnel, protects the safety of construction workers and saves construction time.

[0003] With the application of TBM excavation of tunnels, especially in high mountain canyon areas, with high mountains, deep valleys, steep slopes and banks, and strict requirements on environmental protection and water conservation, the available sites are extremely limited, the site conditions are poor, and the construction layout is extremely difficult; at the same time, due to the requirements of environmental protection and water conservation, the sewage generated during the TBM construction process cannot be discharged directly, but needs to be precipitated and treated, and can only be discharged after meeting the discharge standards. Conventional drainage systems are only applicable to tunnels that have been excavated by TBM equipment and require a large amount of space. Utility Model Content

[0004] The present application provides a drainage system for TBM construction, which can guide the sewage in the TBM construction tunnel to the exploration cave, treat the sewage in the exploration cave, and then feed the treated sewage back to the TBM equipment for recycling, thereby solving the problem of space occupation caused by the general drainage system being only applicable to TBM construction tunnels.

[0005] This application is implemented through the following technical solutions:

[0006] A drainage system for TBM construction, comprising:

[0007] A guide wall, which is arranged at the intersection of the TBM construction hole and the exploration hole, and is used to guide the sewage in the TBM construction hole to the exploration hole;

[0008] A sewage sedimentation tank, the sewage sedimentation tank is used to be arranged in the exploration hole, the sewage sedimentation tank comprises a sedimentation tank, a side wall and an arch wall, the side wall is connected to the outside of the sedimentation tank, the side wall is used to connect with the side wall of the exploration hole, the arch wall is connected to the side wall, and the arch wall is used to connect with the top wall of the exploration hole;

[0009] A sewage treatment system, the sewage treatment system is used to be arranged in the exploration hole, and the sewage treatment system is connected to the sewage sedimentation tank;

[0010] A water supply system, wherein the water supply system is connected to the sewage treatment system and is used to connect the TBM equipment.

[0011] The drainage system for TBM construction provided in the present application can guide the sewage in the TBM construction tunnel to the exploration hole through the setting of guide walls. The sewage can be treated in the exploration hole using a sewage sedimentation tank and a sewage treatment system, thereby avoiding the space in the TBM construction tunnel from being occupied. The treated sewage can be supplied to the TBM equipment through the water supply system, thereby realizing the recycling of water resources.

[0012] In some optional embodiments, the sewage sedimentation tank capacity is configured to be at least 218m 3 .

[0013] In some optional embodiments, the guide wall is configured as a bagged earth cofferdam.

[0014] In some optional embodiments, a simple water retaining plate is further included, wherein the simple water retaining plate is used to fill between the guide wall and the track in the TBM construction hole.

[0015] In some optional embodiments, the simple water retaining board is configured as a composite board formed by a plastic board and a wooden board.

[0016] In some optional embodiments, the thickness of the side wall is configured to be at least 10 cm.

[0017] In some optional embodiments, the thickness of the arch wall is configured to be at least 10 cm.

[0018] In some optional embodiments, the sedimentation tank is a concrete tank, and the thickness of the bottom of the sedimentation tank is configured to be at least 20 cm.

[0019] In some optional embodiments, the length direction of the guide wall is arc-shaped, and the curvature radius of the guide wall is configured so that when the guide wall is set at the intersection of the TBM construction hole and the exploration hole, the ends of the guide wall can be tangent to the walls of the TBM construction hole and the exploration hole respectively.

[0020] In some optional embodiments, the length of the sewage treatment system is configured to be at least 30m.

[0021] Compared with the prior art, this application has the following advantages and beneficial effects:

[0022] The drainage system for TBM construction provided in the present application can guide the sewage in the TBM construction tunnel to the exploration hole through the setting of guide walls. The sewage can be treated in the exploration hole using a sewage sedimentation tank and a sewage treatment system, thereby avoiding the space in the TBM construction tunnel from being occupied. The treated sewage can be supplied to the TBM equipment through the water supply system, thereby realizing the recycling of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the embodiments of the present application, constitute a part of the present application, and do not constitute a limitation on the embodiments of the present application. In the drawings:

[0024] Figure 1 A simplified structural diagram of the drainage system for TBM construction provided in an embodiment of the present application when applied to TBM construction;

[0025] Figure 2 A cross-sectional view of a sewage sedimentation tank provided in an embodiment of the present application;

[0026] Figure 3 A schematic diagram of the cross-sectional structure of the guide wall provided in an embodiment of the present application.

[0027] Marks and corresponding parts names in the attached drawings:

[0028] 1-guide wall, 2-sewage sedimentation tank, 21-sedimentation tank, 22-side wall, 23-arch wall, 3-sewage treatment system, 4-water supply system. DETAILED DESCRIPTION

[0029] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with examples and drawings. The illustrative implementation scheme of the present application and its description are only used to explain the present application and are not intended to limit the present application.

[0030] During the excavation of TBM equipment, when the excavation depth is small, the sewage generated is easy to treat. As the excavation depth increases, the TBM equipment is farther and farther away from the tunnel entrance. At this time, the sewage treatment system is needed to treat the sewage in time; the usual sewage treatment system is only applicable to TBM construction tunnels, that is, it is directly installed in the TBM construction tunnel for sewage treatment, which will occupy a large space in the tunnel. Before TBM construction, it is usually necessary to carry out exploration tunnel construction to collect relevant information. In the process of some TBM construction tunnels, the exploration tunnel and the main tunnel of the tunnel intersect. After the main tunnel excavation reaches a certain value, it will pass through the exploration tunnel, that is, the tunnel section after the construction is completed will intersect with the exploration tunnel. The inventor believes that the exploration tunnel will be idle after the exploration work is completed. If the sewage in the TBM construction tunnel can enter the exploration tunnel and the sewage can be treated in the exploration tunnel, it can solve the problem of the drainage system occupying a large space in the TBM construction tunnel in similar projects.

[0031] like Figure 1-Figure 3 As shown, an embodiment of the present application provides a drainage system for TBM construction, which includes a guide wall 1, a sewage sedimentation tank 2, a sewage treatment system 3 and a water supply system 4; the guide wall 1 is used to be set at the intersection of the TBM construction hole and the exploration hole, and the guide wall 1 is used to divert the sewage in the TBM construction hole to the exploration hole; the sewage sedimentation tank 2 is used to be set in the exploration hole, and the sewage sedimentation tank 2 includes a sedimentation tank 21, a side wall 22 and an arch wall 23, the side wall 22 is connected to the outside of the sedimentation tank 21, the side wall 22 is used to connect with the side wall of the exploration hole, the arch wall 23 is connected to the side wall 22, and the arch wall 23 is used to connect with the top wall of the exploration hole; the sewage treatment system 3 is used to be set in the exploration hole, and the sewage treatment system 3 is connected to the sewage sedimentation tank 2; the water supply system 4 is connected to the sewage treatment system 3 and is used to connect the TBM equipment.

[0032] The drainage system for TBM construction provided in the embodiment of the present application can guide the sewage in the TBM construction tunnel to the exploration hole through the setting of the guide wall 1. The sewage can be treated in the exploration hole using the sewage sedimentation tank 2 and the sewage treatment system 3, thereby avoiding the space in the TBM construction tunnel from being occupied. The treated sewage can be supplied to the TBM equipment through the water supply system 4, thereby realizing the recycling of water resources.

[0033] The sewage treatment system 3 in the embodiment of the present application may adopt a conventional sewage treatment system 3, for example, it may be composed of a conventional activated sludge treatment system, a clarification tank, a disinfection system, filter pressing and dehydration equipment, and a water quality monitoring system.

[0034] The water supply system 4 in the embodiment of the present application may adopt a conventional water supply system 4, for example, a simple structure such as a water pump may be used to realize water supply for the TBM equipment.

[0035] In some optional embodiments, the sewage sedimentation tank 2 has a capacity of at least 218 m 3 In this way, the sewage sedimentation tank 2 can collect sewage in the TBM construction tunnel for a long time. For example, the wastewater generated by the routine excavation of a 3.53m TBM equipment every day is about 10m 3 , and the daily water seepage in the TBM tunnel section is about 12m 3 Therefore, the daily sewage discharge in the TBM construction tunnel is about 22m 3 , the sewage sedimentation tank 2 capacity is configured to be at least 218m 3 After that, the sewage discharged within 10 days of normal excavation of the TBM equipment can be collected. Among them, the sedimentation tank 21, side wall 22 and arch wall 23 in the sewage sedimentation tank 2 can be cast by C20 concrete to ensure its structural strength. Specifically, the thickness of the side wall 22 and the arch wall 23 can be configured to be at least 10 cm, and the cross-sectional shape of the arch wall 23 is roughly arc-shaped, that is, the shape of the arch wall 23 is adapted to the shape of the top wall of the exploration hole to support the top wall of the exploration hole. After the construction of the side wall 22 and the sedimentation tank 21 is completed, the side wall 22 can be connected to the side wall of the exploration hole to support the side wall of the exploration hole; wherein, the bottom thickness of the sedimentation tank 21 can be configured to be at least 20 cm to provide a better anti-seepage effect, and at the same time have a better pressure-bearing effect.

[0036] In some optional embodiments, the guide wall 1 is configured as a bagged earth cofferdam. The guide wall 1 is formed by the bagged earth cofferdam, which is easy to implement and easy to dismantle. When there is no need to guide sewage, it can be quickly dismantled, which has high construction convenience.

[0037] In some optional embodiments, the drainage system for TBM construction may also include a simple water retaining plate, which is used to fill between the guide wall 1 and the track in the TBM construction hole to avoid excessive leakage of sewage. In actual implementation, the simple water retaining plate can be configured as a composite board formed by a plastic board and a wooden board. Plastic boards usually have the characteristics of being waterproof, corrosion-resistant and wear-resistant, while wooden boards have certain toughness and bearing capacity. By superimposing plastic boards and wooden boards, the advantages of the two materials can be effectively combined, with good strength and durability, while the overall weight is light, and it is easy to carry and install.

[0038] In some optional embodiments, the guide wall 1 is arc-shaped in the length direction, and the curvature radius of the guide wall 1 is configured so that when the guide wall 1 is set at the intersection of the TBM construction hole and the exploration hole, the ends of the guide wall 1 can be tangent to the walls of the TBM construction hole and the exploration hole respectively. This arrangement can avoid excessive gaps and reduce sewage leakage.

[0039] In some optional embodiments, the length of the sewage treatment system 3 is configured to be at least 30 m. A sewage treatment system 3 with a length of more than 30 m can have a good sewage treatment efficiency and can form a stable water cycle in conjunction with the water supply system 4.

[0040] To sum up, the drainage system for TBM construction provided in the embodiment of the present application can use the existing exploration hole as the layout site, effectively utilize the existing underground space, reduce the site leveling area of ​​the TBM industrial square in the mountainous canyon area, reduce the damage to the ground vegetation, and can realize the recycling of water resources, which is in line with the concept of environmental protection.

[0041] The above specific embodiments illustrate the implementation methods of the present application. Those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Although the description of the present application will be introduced in conjunction with some embodiments, this does not mean that the features of this application are limited to the implementation methods. On the contrary, the purpose of introducing the application in conjunction with the implementation methods is to cover other options or modifications that may be extended based on the claims of the present application. In order to provide an in-depth understanding of the present application, the above description contains many specific details. The present application can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0042] It should be noted that in this specification, similar numbers and letters represent similar items in the above drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In the description of this application, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing this application 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 a limitation on this application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A drainage system for TBM construction, characterized in that: include: A guide wall (1), the guide wall (1) being arranged at the intersection of a TBM construction hole and an exploration hole, the guide wall (1) being used to guide sewage in the TBM construction hole to the exploration hole; A sewage sedimentation tank (2), the sewage sedimentation tank (2) being used to be arranged in the exploration hole, the sewage sedimentation tank (2) comprising a sedimentation tank (21), a side wall (22) and an arch wall (23), the side wall (22) being connected to the outside of the sedimentation tank (21), the side wall (22) being used to connect with the side wall of the exploration hole, the arch wall (23) being connected to the side wall (22), and the arch wall (23) being used to connect with the top wall of the exploration hole; A sewage treatment system (3), the sewage treatment system (3) being arranged in the exploration hole, the sewage treatment system (3) being connected to the sewage sedimentation tank (2); A water supply system (4), the water supply system (4) is connected to the sewage treatment system (3) and is used to connect to the TBM equipment.

2. The drainage system for TBM construction according to claim 1, characterized in that: The sewage sedimentation tank (2) is configured to have a capacity of at least 218m 3 .

3. The drainage system for TBM construction according to claim 1, characterized in that: The guide wall (1) is configured as a bagged earth cofferdam.

4. The drainage system for TBM construction according to claim 3, characterized in that: It also comprises a simple water retaining plate, which is used to fill between the guide wall (1) and the track in the TBM construction hole.

5. The drainage system for TBM construction according to claim 4, characterized in that: The simple water retaining plate is configured as a composite plate formed by a plastic plate and a wooden plate.

6. The drainage system for TBM construction according to claim 1, characterized in that: The thickness of the side wall (22) is configured to be at least 10 cm.

7. The drainage system for TBM construction according to claim 1, characterized in that: The thickness of the arch wall (23) is configured to be at least 10 cm.

8. The drainage system for TBM construction according to claim 1, characterized in that: The sedimentation tank is a concrete tank, and the thickness of the bottom of the sedimentation tank is configured to be at least 20 cm.

9. The drainage system for TBM construction according to claim 1, characterized in that: The guide wall (1) is arc-shaped in the length direction, and the curvature radius of the guide wall (1) is configured so that when the guide wall (1) is arranged at the intersection of a TBM construction hole and an exploration hole, the ends of the guide wall (1) can be tangent to the walls of the TBM construction hole and the exploration hole respectively.

10. The drainage system for TBM construction according to claim 1, characterized in that: The length of the sewage treatment system (3) is configured to be at least 30 m.

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