A diversion tunnel and a method for its construction layout.

Abstract

This invention provides a diversion tunnel and a method for its construction layout, relating to the technical field of diversion structures in water conservancy and hydropower projects. The method for constructing a diversion tunnel includes a gate assembly located between the tunnel body and a construction adit. The gate assembly is movable between a first position and a second position. When in the first position, the gate assembly is located within the tunnel body and on the side of the connecting opening near the diversion inlet, thus blocking the tunnel body. When in the second position, the gate assembly blocks the connecting opening. This avoids placing the gate assembly at the diversion inlet of the tunnel body, thereby reducing the amount of construction work at the diversion inlet and lowering the construction difficulty at the diversion inlet.

Description

Technical Field

[0001] This invention relates to the field of diversion structures in water conservancy and hydropower engineering, and more specifically, to a diversion tunnel and a method for its construction and layout. Background Technology

[0002] In water conservancy and hydropower engineering construction, tunnel diversion is one of the commonly used diversion methods, especially in large-scale water conservancy and hydropower projects in mountainous areas. Due to the influence of mountainous terrain, the inlet of diversion tunnels is often quite steep, making it difficult to form roads during inlet construction, resulting in a large amount of excavation work, high slopes, and significant construction challenges.

[0003] The inventors discovered that, according to the traditional construction layout of diversion tunnels, in order to solve the problem of the construction road at the entrance and speed up the construction progress of the diversion tunnel, an additional construction adit for the diversion tunnel would be added, and the sealing gate would be placed at the diversion entrance of the diversion tunnel body. However, placing the sealing gate at the diversion entrance of the diversion tunnel body would occupy a large space at the diversion entrance, thereby increasing the amount of work to be done at the diversion entrance and increasing the construction difficulty. Summary of the Invention

[0004] The present invention aims to provide, for example, a diversion tunnel in which a gate assembly is located between the diversion tunnel body and the construction adit, and the gate assembly is movable between a first position and a second position. When the gate assembly is in the first position, it is located within the diversion tunnel body and on the side of the connecting opening near the diversion inlet, thereby blocking the diversion tunnel body. When the gate assembly is in the second position, it blocks the connecting opening, thus avoiding the need to place the gate assembly at the diversion inlet of the diversion tunnel body, thereby reducing the amount of construction work at the diversion inlet and also reducing the construction difficulty at the diversion inlet.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] In a first aspect, the present invention provides a diversion tunnel, comprising:

[0007] The diversion tunnel body has a diversion inlet, a diversion outlet, and a connecting port located between the diversion inlet and the diversion outlet. There is a pre-set chamber between the connecting port and the diversion outlet for installing a sealing body.

[0008] The construction adit is connected to the diversion tunnel body through a connecting port.

[0009] The gate assembly is located between the diversion tunnel body and the construction adit. The gate assembly can move between a first position and a second position. When the gate assembly is in the first position, it is located in the diversion tunnel body and on the side of the connecting opening near the diversion inlet, so as to block the diversion tunnel body. When the gate assembly is in the second position, it blocks the connecting opening.

[0010] In an optional embodiment, the gate assembly includes a blocking gate and a rotating shaft. The rotating shaft is located between the diversion tunnel body and the construction adit and is close to the diversion inlet. The rotating shaft is fixedly connected to the end of the blocking gate. The rotating shaft can rotate along its own axis. When the rotating shaft rotates, it can drive the blocking gate to move between a first position and a second position.

[0011] In an optional embodiment, the inner wall of the diversion tunnel body is provided with a gatepost for supporting the sealing gate.

[0012] In an optional embodiment, the diversion tunnel further includes a drive unit connected to a rotating shaft to drive the shaft to rotate.

[0013] In an optional implementation, the diversion tunnel also includes a remote control system, which is communicatively connected to the drive unit.

[0014] In an optional implementation, the length direction of the diversion tunnel body is perpendicular to the length direction of the construction adit.

[0015] In an optional implementation, the inner diameter of the construction adit is smaller than the inner diameter of the diversion tunnel body.

[0016] In an optional implementation, a sealing body is provided in the preset chamber of the diversion tunnel, and the sealing body is used to seal the diversion tunnel.

[0017] Secondly, the present invention provides a method for constructing a diversion tunnel, used to construct a diversion tunnel according to any of the foregoing embodiments, comprising:

[0018] Constructing construction adits;

[0019] A diversion tunnel body is constructed on both sides of the end of the construction adit. The diversion tunnel body has a diversion inlet, a diversion outlet, and a pre-set chamber located between the diversion outlet and the diversion inlet for installing a sealing body. The diversion tunnel body has a connecting port that connects to the construction adit.

[0020] Install gate components.

[0021] In an optional implementation, it further includes:

[0022] A sealing body is installed in the pre-set chamber.

[0023] The beneficial effects of the embodiments of the present invention include, for example, a diversion tunnel provided by the embodiments of the present invention, wherein a gate assembly is located between the diversion tunnel body and the construction adit, and the gate assembly can move between a first position and a second position. When the gate assembly is in the first position, the gate assembly is located in the diversion tunnel body and on the side of the connecting opening near the diversion inlet, so as to block the diversion tunnel body. When the gate assembly is in the second position, the gate assembly blocks the connecting opening, avoiding the arrangement of the gate assembly at the diversion inlet of the diversion tunnel body, thereby reducing the amount of construction work at the diversion inlet and also reducing the construction difficulty at the diversion inlet. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the gate assembly in the diversion tunnel in the first position according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the gate assembly in the diversion tunnel in the second position, provided in an embodiment of the present invention.

[0027] Icons: 1-Diversion tunnel; 10-Diversion tunnel body; 11-Diversion inlet; 12-Diversion outlet; 13-Pre-set chamber; 14-Connecting port; 15-Gate jamb; 16-Blocking body; 20-Construction adit; 30-Gate assembly; 31-Blocking gate; 32-Rotating shaft; 33-Remote control system. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention 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, and therefore should not be construed as a limitation of this invention.

[0032] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0033] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0034] The following detailed description, in conjunction with the accompanying drawings, details the specific structure of a diversion tunnel provided by an embodiment of the present invention and the corresponding technical effects it brings.

[0035] Please refer to Figures 1-2 The present invention provides a diversion tunnel 1 including a diversion tunnel body 10, a construction adit 20 and a gate assembly 30.

[0036] The diversion tunnel body 10 has a diversion inlet 11, a diversion outlet 12, and a connecting port 14 located between the diversion inlet 11 and the diversion outlet 12. A pre-set chamber 13 for installing a sealing body 16 is located between the connecting port 14 and the diversion outlet 12. It is understood that when the diversion tunnel 1 does not require diversion work, the pre-set chamber 13 can be accessed through the construction adit 20 and the connecting port 14 to install the sealing body 16.

[0037] The construction adit 20 is connected to the diversion tunnel body 10 via the connecting port 14. A gate assembly 30 is located between the diversion tunnel body 10 and the construction tunnel, and the gate assembly 30 can move between a first position and a second position. When the gate assembly 30 is in the first position, it is located within the diversion tunnel body 10 and on the side of the connecting port 14 near the diversion inlet 11, thus sealing the diversion tunnel body. It is easy to understand that in the first position, the gate assembly 30 seals the diversion tunnel body 10. Because it is located on the side of the connecting port 14 near the diversion inlet 11, water from the diversion inlet 11 is blocked by the gate assembly 30, preventing it from flowing into the preset chamber 13 and out through the diversion outlet 12. Furthermore, due to the presence of the connecting port 14, water leaking between the gate assembly 30 and the diversion tunnel body 10 will also flow into the construction adit 20 through the connecting port 14. This ensures that the sealing body 16 can be constructed in a dry environment.

[0038] When the gate assembly 30 is in the second position, the gate assembly 30 blocks the connection port 14. It is easy to understand that when the gate assembly 30 blocks the connection port 14, the water flow can sequentially pass through the guide inlet 11, the gate assembly 30, and the preset chamber 13, and then flow out from the guide outlet 12. At this time, the guide tunnel body 10 can ensure normal flow operation.

[0039] With the above-described configuration, the gate assembly 30 provided in this embodiment of the invention is not located at the diversion inlet 11, thus avoiding occupying space at the diversion inlet 11, increasing the workload of construction at the diversion inlet 11, and reducing the construction difficulty of the diversion inlet 11. In this embodiment, the gate assembly 30 is located between the diversion tunnel body 10 and the construction adit 20. Therefore, after excavating the construction adit 20 and the diversion tunnel body 10, the gate assembly 30 can be installed between the construction adit 20 and the diversion tunnel body 10 after passing through the construction adit 20.

[0040] It should be noted that the gate assembly 30 can be located on the outer wall of the diversion tunnel body 10 or on the outer wall of the construction adit 20, and it can also be located in other positions, as long as it can ensure that the gate assembly 30 can move to the first position and the second position.

[0041] Furthermore, the gate assembly 30 includes a blocking gate 31 and a rotating shaft 32, which is located between the diversion tunnel body 10 and the construction adit 20 and near the diversion inlet 11. It should be noted that, in this embodiment, along the length of the diversion tunnel body 10, the rotating shaft 32 is located on the side of the connecting opening 14 near the diversion inlet 11, and the connecting opening 14 exposes the rotating shaft 32.

[0042] The rotating shaft 32 is fixedly connected to the end of the blocking gate 31. The rotating shaft 32 can rotate along its own axis. When the rotating shaft 32 rotates, it can drive the blocking gate 31 to move between the first position and the second position. It can be understood that when the rotating shaft 32 drives the blocking gate 31 to the first position, the blocking gate 31 blocks the diversion tunnel body 10. When the rotating shaft 32 drives the blocking gate 31 to the second position, the blocking gate 31 blocks the connecting port 14.

[0043] Specifically, in this embodiment, the diversion tunnel 1 further includes a driving component (not shown in the figure), which is connected to the rotating shaft 32 to drive the rotating shaft 32 to rotate. It should be noted that the output shaft of the driving component can be connected to the rotating shaft 32 via a coupling.

[0044] Furthermore, the diversion tunnel 1 also includes a remote control system 33, which is communicatively connected to the drive unit. Understandably, the user can control the drive unit via the remote control system 33 to drive the rotating shaft 32 to move the blocking gate 31 to either a first or second position. For example, when the diversion tunnel body 10 is required to function as a flow passage, meaning water can enter from the diversion inlet 11 and exit from the diversion outlet 12, the remote control system 33 can control the blocking gate 31 to be in the second position, blocking the connection port 14. When the diversion tunnel body 10 is not required to function as a flow passage, the user can control the blocking gate 31 to be in the first position via the remote control system 33, so that the blocking gate 31 blocks the diversion tunnel body 10, at which point the connection port 14 is open.

[0045] Furthermore, in order to ensure that the blocking gate 31 can more stably block the diversion tunnel body 10 when it is in the first position, a gate jamb 15 for supporting the blocking gate 31 is provided on the inner side wall of the diversion tunnel body 10.

[0046] Furthermore, in this embodiment, the length direction of the diversion tunnel body 10 is perpendicular to the length direction of the construction adit 20. It can be understood that, since the length direction of the diversion tunnel body 10 is perpendicular to the length direction of the construction adit 20, the angle between the sealing gate 31 in the first position and in the second position is 90°, ensuring that the remote control system 33 can better control the position of the sealing gate 31 to suit different situations.

[0047] Of course, in some other embodiments, the length direction of the diversion tunnel body 10 and the length direction of the construction adit 20 may be at other angles, which are not specifically limited here.

[0048] Specifically, in this embodiment, the inner diameter of the construction adit 20 is smaller than the inner diameter of the diversion tunnel body 10. It is understood that the inner diameter of the construction adit 20 only needs to ensure that construction personnel can carry out construction work and meet the transportation requirements for installing the sealing gate 31. Furthermore, it should be noted that the construction adit 20 connects to the on-site construction access road. The on-site construction access road is the construction road that forms the basis of the construction.

[0049] It should be noted that in this embodiment, both the construction adit 20 and the diversion tunnel body 10 are arch-shaped. Furthermore, the sealing gate 31 is a flat steel gate, the shape and size of which are determined based on the flow-through end face of the diversion tunnel body 10. This ensures that the sealing gate 31 can effectively block the diversion tunnel body 10 and prevent water flow.

[0050] This invention also provides a construction layout method for a diversion tunnel 1, used to construct the aforementioned diversion tunnel 1, comprising:

[0051] First, construct 20 construction adits.

[0052] Construction then begins on the construction adit 20 from the on-site construction access road. A diversion tunnel body 10 is then constructed along both sides of the end of the construction adit 20. The diversion tunnel body 10 has a diversion inlet 11, a diversion outlet 12, and a pre-set chamber 13 located between the diversion outlet 12 and the diversion inlet 11 for installing a sealing body 16. The diversion tunnel body also has a connecting port 14 that communicates with the construction adit 20. It is understood that this connecting port 14 is excavated when construction of the diversion tunnel body 10 begins from the construction adit 20.

[0053] Finally, the gate assembly 30 is installed. Following the same principle, after installation, to ensure normal flow through the diversion tunnel body 10, the sealing gate 31 of the gate assembly 30 is in the second position, blocking the connection port 14. When normal flow through the diversion tunnel body 10 is no longer needed, i.e., when the diversion tunnel body 10 is no longer required, a sealing body 16 can be installed in the preset chamber 13 of the diversion tunnel body 10 through the construction adit 20. At this time, the sealing gate 31 can be controlled by the remote control system 33 to be in the first position to block the diversion tunnel body 10 and open the connection port 14, preventing water flow within the diversion tunnel body 10.

[0054] In summary, the diversion tunnel 1 constructed using the construction layout method avoids placing the gate assembly 30 at the diversion inlet 11 of the diversion tunnel body 10, thereby reducing the amount of construction work at the diversion inlet 11 and also reducing the construction difficulty at the diversion inlet 11.

[0055] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A diversion tunnel, characterized in that, include: The diversion tunnel body has a diversion inlet, a diversion outlet, and a connecting port located between the diversion inlet and the diversion outlet. A preset chamber for installing a sealing body is provided between the connecting port and the diversion outlet. A construction adit, which is connected to the diversion tunnel body through the connecting port; A gate assembly is located between the diversion tunnel body and the construction adit. The gate assembly is movable between a first position and a second position. When the gate assembly is in the first position, it is located within the diversion tunnel body and on the side of the connecting opening closer to the diversion inlet, thereby blocking the diversion tunnel body. When the gate assembly is in the second position, it blocks the connecting opening. The length direction of the diversion tunnel body is perpendicular to the length direction of the construction adit.

2. The diversion tunnel according to claim 1, characterized in that: The gate assembly includes a blocking gate and a rotating shaft. The rotating shaft is located between the diversion tunnel body and the construction adit and is close to the diversion inlet. The rotating shaft is fixedly connected to the end of the blocking gate. The rotating shaft can rotate along its own axis. When the rotating shaft rotates, it can drive the blocking gate to move between the first position and the second position.

3. The diversion tunnel according to claim 2, characterized in that: The inner wall of the diversion tunnel is provided with a gate jamb for supporting the sealing gate.

4. The diversion tunnel according to claim 2, characterized in that: The diversion tunnel also includes a drive unit connected to the rotating shaft to drive the rotating shaft to rotate.

5. The diversion tunnel according to claim 4, characterized in that: The diversion tunnel also includes a remote control system, which is communicatively connected to the drive unit.

6. The diversion tunnel according to claim 1, characterized in that: The inner diameter of the construction adit is smaller than the inner diameter of the diversion tunnel body.

7. The diversion tunnel according to claim 1, characterized in that: A sealing body is provided in the preset cavity of the diversion tunnel, and the sealing body is used to seal the diversion tunnel.

8. A method for constructing a diversion tunnel, used to create the diversion tunnel as described in any one of claims 1-7, characterized in that, include: Constructing construction adits; A diversion tunnel body is constructed on both sides of the end of the construction adit. The diversion tunnel body has a diversion inlet, a diversion outlet, and a pre-set chamber located between the diversion outlet and the diversion inlet for installing a sealing body. The diversion tunnel body has a communication port that communicates with the construction adit. Install gate components.

9. The method for constructing and arranging a diversion tunnel according to claim 8, characterized in that, Also includes: The sealing body is installed in the preset chamber.

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