A hydraulic tunnel reinforcement structure

Abstract

The application relates to a water tunnel reinforcing structure and relates to the technical field of water structure design and manufacturing, which comprises vertical piles and a cross beam, one vertical pile is vertically inserted on each side of a water tunnel, the cross beam is arranged between the two vertical piles and above the water tunnel; an axial channel is formed in the vertical pile along the length direction of the vertical pile, a blocking plate is detachably arranged outside the lower end opening of the vertical pile, a displacement core column is arranged in the axial channel and close to the lower end of the vertical pile, a hammering core column is arranged in the axial channel and above the displacement core column, and a reinforcing mechanism is arranged in the vertical pile; when the hammering core column is struck and the displacement core column vertically moves downwards, the reinforcing mechanism is automatically inserted from the vertical pile to the outside of the vertical pile. The application has the effect of improving the problem of affecting the normal operation of the water tunnel during water tunnel reinforcement.

Description

Technical Field

[0001] This application relates to the field of hydraulic structure design and manufacturing technology, and in particular to a hydraulic tunnel reinforcement structure. Background Technology

[0002] Currently, tunnel structures, which are used infrequently, remain closed for extended periods, and must be able to open smoothly in emergencies, are an essential component of engineering construction and operation, and are widely present in various construction projects. Drainage tunnels and emergency spillway tunnels in hydropower stations belong to this category. Drainage tunnels are generally used only when maintenance is needed on structures normally submerged in the reservoir, such as the dam body or upstream dam face, to empty the reservoir. Emergency spillway tunnels are used only when exceptionally large floods prevent conventional spillway tunnels from meeting the flood discharge requirements. Both types of hydraulic tunnels share the characteristic of very low usage frequency; they are rarely used under normal circumstances, but are necessary to maintain the functionality of the hydropower station or as a safety reserve. To ensure that they can be closed to block water during normal operation and can be opened smoothly for drainage or flood discharge in emergencies, these tunnel structures should also be equipped with appropriate sealing and drainage devices. For example, drainage tunnels and emergency spillway tunnels generally require two steel gates: one working gate and one maintenance gate. Deep-water steel gates are relatively expensive, and each gate requires the installation of supporting electromechanical equipment and concrete structures, such as hoists, power distribution rooms, and hoist frames. Although these types of hydraulic tunnels are used infrequently, regular maintenance and upkeep of the two steel gates and their ancillary facilities are necessary to ensure normal operation when needed.

[0003] Regarding the aforementioned technologies, the inventors believe that most current hydraulic tunnel reinforcement requires entering the tunnel interior for reinforcement, which occupies the water passage section of the hydraulic tunnel, causing water flow obstruction. Moreover, the choice of which reinforcement method to use will also affect the normal operation of the hydraulic tunnel. Summary of the Invention

[0004] In order to improve the problem of the impact on the normal operation of hydraulic tunnels during reinforcement, the purpose of this application is to provide a hydraulic tunnel reinforcement structure.

[0005] The technical solution for a hydraulic tunnel reinforcement structure provided in this application is as follows:

[0006] A hydraulic tunnel reinforcement structure includes vertical piles and a crossbeam. One vertical pile is vertically installed on each side of the hydraulic tunnel. The crossbeam is erected between the two vertical piles and located above the hydraulic tunnel. An axial channel is formed through the vertical pile along its length. A sealing plate is detachably installed on the outer side of the lower opening of the vertical pile. A displacement core column is inserted into the axial channel near the lower end of the vertical pile. A hammer-driven core column is fitted above the displacement core column in the axial channel. A reinforcement mechanism is installed inside the vertical pile. When the hammer-driven core column is struck, causing the displacement core column to move vertically downwards, the reinforcement mechanism automatically extends laterally from inside the vertical pile to the outside of the vertical pile.

[0007] Preferably, the end of the displacement core near the sealing plate is a pointed end, the sealing plate is bonded to the outside of the lower opening of the vertical pile, and the surface area of ​​the sealing plate is larger than the area of ​​the lower opening of the vertical pile.

[0008] Preferably, when the lower pile surface of the hammer-driven core column is in contact with the upper pile surface of the displacement core column, the upper pile surface of the hammer-driven core column is outside the axial channel.

[0009] Preferably, the reinforcement mechanism includes a transverse insertion part and a displacement pushing part; a transverse channel is provided through the vertical pile, the transverse channel is connected to the axial channel, and the transverse insertion part is slidably installed in the transverse channel; the displacement pushing part is installed between the transverse channel and the axial channel, and when the displacement core is pushed vertically downward in the axial channel, the displacement pushing part drives the transverse insertion part to move out of the transverse channel.

[0010] Preferably, the transverse insertion part includes a transverse insertion rod and a connecting block. The transverse insertion rod is slidably inserted into the transverse channel. A groove is formed on the lower wall of the transverse channel along the length of the transverse channel. The connecting block is installed on the transverse insertion rod and slidably inserted into the groove. When the displacement core is pushed and moves vertically downward in the axial channel, the displacement pushing part pulls the connecting block to move outward in the direction of the transverse channel within the groove.

[0011] Preferably, the end of the transverse insert away from the axial channel is a pointed end.

[0012] Preferably, the displacement pushing part includes a steel wire rope, and an L-shaped channel is provided in the inner wall of the vertical pile between the sliding groove and the axial channel. The upper opening of the L-shaped channel is connected to the sliding groove, and the side opening is connected to the axial channel. One end of the steel wire rope is connected to the connecting block, and the other end passes through the sliding groove, the L-shaped channel and the axial channel and is connected to the pile side wall of the displacement core column.

[0013] Preferably, a steering wheel is rotatably provided at the junction of the chute and the L-shaped channel, as well as at the turning point of the L-shaped channel, and the steel wire rope changes its extension direction by adhering to the steering wheel.

[0014] Preferably, multiple reinforcement mechanisms are staggered on both sides of the axial channel along the length of the vertical pile.

[0015] Preferably, both the hammer-driven core column and the displacement core column have receiving side grooves on the upper pile side wall near the connection end of the wire rope. The receiving side grooves are used to allow the wire rope to pass through when the displacement core column moves, thereby preventing the wire rope from being squeezed.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] 1. After installing vertical piles and crossbeams on the sides and top of the hydraulic tunnel, the stress on the hydraulic tunnel can be effectively reduced. It is not necessary to reinforce inside the hydraulic tunnel, but to reinforce the outside. This will not occupy the water passage section of the hydraulic tunnel, and the operation of the hydraulic tunnel will not be affected during the reinforcement process.

[0018] 2. After the vertical pile is embedded below the ground on one side of the hydraulic tunnel, the upper surface of the hammer-driven core column is outside the axial channel. At this time, the hammer-driven core column is hammered by a hammering device, which applies a vertical downward thrust to the displacement core column. The displacement core column moves vertically downward in the axial channel. The end of the wire rope connected to the displacement core column will gradually extend from the L-shaped channel into the axial channel as the displacement core column moves vertically downward. At this time, the end of the wire rope connected to the connecting block will pull the connecting block to move in the groove, thereby causing the transverse insertion rod to move from the transverse channel to the outside, so that the transverse insertion rod is inserted into the ground outside the vertical pile. Finally, the hammer-driven core column is removed, and concrete is injected into the axial channel, so that both the axial channel and the transverse channel are filled with concrete. After solidification, the transverse insertion rod can be stably placed in the current position, improving the stability of the vertical pile within the ground. Attached Figure Description

[0019] Figure 1 This is a structural cross-sectional view of an embodiment of this application;

[0020] Figure 2 yes Figure 1 Enlarged view of part A in the image;

[0021] Figure 3 yes Figure 1 Enlarged view of part B in the image;

[0022] Figure 4 yes Figure 1 Enlarged view of section C in the image.

[0023] In the diagram, 1 is a vertical pile; 11 is a transverse channel; 111 is a chute; 12 is an L-shaped channel; 121 is a steering wheel; 2 is a crossbeam; 3 is an axial channel; 4 is a sealing plate; 5 is a displacement core column; 6 is a hammer-driven core column; 7 is a reinforcing mechanism; 8 is a transverse insertion part; 81 is a transverse insertion rod; 82 is a connecting block; 9 is a displacement pushing part; 91 is a wire rope; and 10 is a receiving side groove. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 This application will be described in further detail below.

[0025] A hydraulic tunnel reinforcement structure, referring to Figure 1 , 2 The system includes vertical pile 1 and horizontal beam 2. Vertical pile 1 is arranged 2m to 4m to the left and 2m to 4m to the right of the hydraulic tunnel. Vertical pile 1 is a Φ80C30 reinforced concrete cast-in-place pile. It is located 6m above the hydraulic tunnel. A crossbeam 2, made of C30 reinforced concrete, is arranged at a distance of m to 7m and is erected between two vertical piles 1. The vertical pile 1 is a hollow pile with openings at both ends, i.e., an axial channel 3 is formed inside the vertical pile 1 along its length. A sealing plate 4 is detachably installed on the outside of the lower opening of the vertical pile 1, i.e., the sealing plate 4 is glued to the outside of the lower opening of the vertical pile 1 with industrial adhesive, and the surface area of ​​the sealing plate 4 is larger than the opening area at the end of the axial channel 3. A displacement core column 5 is inserted into the axial channel 3 near the lower end of the vertical pile 1, and a hammering core column 6 is attached above the displacement core column 5 in the axial channel 3. A reinforcement mechanism 7 is installed inside the vertical pile 1. When the hammering core column 6 is struck, causing the displacement core column 5 to move vertically downward, the reinforcement mechanism 7 automatically moves laterally from inside the vertical pile 1 to the outside of the vertical pile 1. Once the vertical pile 1 and the horizontal beam 2 are installed in place, the stress on the hydraulic tunnel can be effectively reduced. Reinforcement is not required inside the hydraulic tunnel, but on the outside, so as not to occupy the water passage section of the hydraulic tunnel, and the operation of the hydraulic tunnel will not be affected during the reinforcement process.

[0026] like Figure 1 , 3 As shown, the lower pile surface of the hammer-driven core column 6 is in contact with the upper pile surface of the displacement core column 5, and the upper pile surface of the hammer-driven core column 6 is outside the axial channel 3; combined with Figure 2The end of the displacement core column 5 furthest from the hammer core column 6 is a pointed tip, which abuts against the inner surface of the sealing plate 4. Thus, after the vertical pile 1 is pre-pushed below ground level, because the sealing plate 4 is outside the lower opening of the vertical pile 1, it will always block the lower opening of the axial channel 3 during the vertical downward movement of the vertical pile 1. This ensures that during the downward movement of the vertical pile 1 before pre-installation, both the hammer core column 6 and the displacement core column 5 within the axial channel 3 remain in their current positions without being affected. Next, the hammer core column 6 is hammered, applying a vertically downward thrust to the displacement core column 5. The displacement core column 5 moves vertically downward within the axial channel 3, directly pushing open the sealing plate 4, causing it to disengage from the lower opening of the axial channel 3. The pointed tip of the displacement core column 5 then protrudes from the lower opening of the axial channel 3. During this process, the reinforcement mechanism 7 automatically inserts laterally from inside the vertical pile 1 into the ground outside the vertical pile 1, which increases the obstruction in the horizontal direction of the vertical pile 1, making it less likely for the vertical pile 1 to shift in the vertical direction, and improving the stability of the vertical pile 1 in the current position.

[0027] Reference Figure 2 , 3 The reinforcement mechanism 7 includes a transverse insertion part 8 and a displacement pushing part 9. A transverse channel 11 is formed through the vertical pile 1, and the transverse channel 11 is connected to the interior of the axial channel 3. The transverse insertion part 8 is slidably installed in the transverse channel 11. The displacement pushing part 9 is installed between the transverse channel 11 and the axial channel 3. When the displacement core 5 is pushed and moves vertically downward in the axial channel 3, the displacement pushing part 9 drives the transverse insertion part 8 to move out of the transverse channel 11. That is, when the displacement core 5 pushes against the sealing plate 4 and continues to move downward, the displacement pushing part 9 will be affected and drive the transverse insertion part 8 to move, thus driving the transverse insertion part 8 to move out of the transverse channel 11.

[0028] like Figure 3 , 4As shown, the transverse insertion part 8 includes a transverse insertion rod 81 and a connecting block 82. The transverse insertion rod 81 is slidably inserted into the transverse channel 11, and the end of the transverse insertion rod 81 away from the axial channel 3 is set as a pointed end, which allows the transverse insertion rod 81 to be easily inserted into the stratum outside the transverse channel 11 during movement. The connecting block 82 is welded to the rod wall of the transverse insertion rod 81. A groove 111 is formed on the lower bottom wall of the transverse channel 11 along the length direction of the transverse channel 11. The length of the groove 111 is less than the length of the transverse channel 11, and both ends of the groove 111 are sealed in the length direction. The block body of the connecting block 82 is located in the groove 111 and slides along the length direction of the groove 111. That is, when the connecting block 82 is located in the groove 111, it can not affect the normal sliding of the transverse insertion block in the transverse channel 11, and can also prevent the transverse insertion block from completely leaving the transverse channel 11, so that a part of the transverse insertion block is always located in the transverse channel 11. Furthermore, when the displacement core 5 is pushed vertically downward in the axial channel 3, the displacement pushing part 9 pulls the connecting block 82 to move in the groove 111 towards the outside of the transverse channel 11.

[0029] Combination Figure 3 , 4 The displacement pushing part 9 includes a steel wire rope 91. An L-shaped channel 12 is provided inside the pile wall of the vertical pile 1 located in the sliding groove 111 and the axial channel 3. The upper opening of the L-shaped channel 12 is connected to the end of the sliding groove 111 away from the axial channel 3, while the side opening of the L-shaped channel 12 is directly connected to the axial channel 3. The vertical height of the upper opening of the L-shaped channel 12 is higher than that of the side opening of the L-shaped channel 12. When the transverse insertion rod 81 is normally in the transverse channel 11, the connecting block 82 is located in the sliding groove 111 away from the upper opening of the L-shaped channel 12. One end of the steel wire rope 91 is connected to the front end of the connecting block 82 moving along the sliding groove 111. The other end of the steel wire rope 91 first extends into the L-shaped channel 12, then extends from the L-shaped channel 12 into the axial channel 3, and finally connects to the side pile wall of the displacement core column 5. When the displacement core column 5 moves vertically downward, the displacement core column 5 will drive the end of the wire rope 91 connected to the displacement core column 5 to be stretched downward synchronously, so that the end of the wire rope 91 connected to the connecting block 82 will be subjected to a tensile force; while the section of wire rope 91 in the chute 111 will be subjected to a tensile force along the length of the chute 111, thereby pulling the connecting block 82 to move along the length of the chute 111, and at the same time, allowing the transverse insertion rod 81 to move horizontally away from the axial channel 3 in the transverse channel 11. At this time, the tip of the transverse insertion rod 81 will be continuously inserted into the stratum outside the vertical pile 1 until the block wall of the connecting block 82 touches the end wall of the chute 111 and can no longer move. At this time, the position of the transverse insertion rod 81 will also be determined.

[0030] Reference Figure 3 , 4To minimize wear on the wire rope 91 when it passes through the L-shaped channel 12, a steering wheel 121 is rotatably installed at the junction of the chute 111 and the L-shaped channel 12, as well as at the turning point of the L-shaped channel 12. Furthermore, the opening edge of the side opening of the L-shaped channel 12 is chamfered. As the wire rope 91 extends within the chute 111 and the L-shaped channel 12, it can make right-angle turns through the steering wheel 121 without rubbing against the turning edge inside the L-shaped channel 12. This minimizes damage to the wire rope 91 during the pulling process and makes it less prone to breakage.

[0031] like Figure 1 , 4 As shown, multiple reinforcement mechanisms 7 are staggered along the length of the vertical pile 1 on both sides of the axial channel 3. The arrangement of multiple reinforcement mechanisms 7 can improve the stability of the vertical pile 1 within the ground. Moreover, the hammer-driven core column 6 and the displacement core column 5 are both provided with receiving side grooves 10 on the upper pile side wall near the connection end of the wire rope 91. The width of the receiving side groove 10 is the same as the diameter of the wire rope 91. The receiving side groove 10 is used to allow the wire rope 91 to pass through when the displacement core column 5 moves, thus preventing the wire rope 91 from being squeezed. In other words, the space in the axial channel 3 can only accommodate the displacement core column 5 and the hammer-driven core column 6. The space in the axial channel 3 cannot accommodate the wire rope 91. Therefore, without the setting of the receiving side groove 10, as the displacement core column 5 moves vertically downward, the wire rope 91 entering the axial channel 3 is likely to be squeezed between the column wall of the displacement core column 5 and the side wall of the axial channel 3, or even get stuck. With the receiving side groove 10 provided, the wire rope 91 entering the axial channel 3 will be placed into the receiving side groove 10 without being squeezed. It is also worth noting that in this embodiment, the cross-sectional shape of the axial channel 3 is rectangular, and the cross-sectional shapes of the displacement core 5 and the hammer core 6 are also rectangular, which makes it convenient to align the receiving groove with the corresponding side of the wire rope 91 and put it in.

[0032] The implementation principle of this application embodiment is as follows: After the vertical pile 1 is buried below the ground on one side of the hydraulic tunnel, the upper pile surface of the hammer-driven core column 6 is outside the axial channel 3. At this time, the hammer-driven core column 6 is hammered by a hammering device, so that the hammer-driven core column 6 applies a vertically downward thrust to the displacement core column 5. The displacement core column 5 moves vertically downward in the axial channel 3, and the end of the wire rope 91 connected to the displacement core column 5 will gradually extend from the L-shaped channel 12 into the axial channel 3 as the displacement core column 5 moves vertically downward; at this time, the wire rope The end of 91 connected to the connecting block 82 will pull the connecting block 82 to move within the slide groove 111, thereby causing the transverse insertion rod 81 to move from inside the transverse channel 11 to the outside, so that the transverse insertion rod 81 is inserted into the ground outside the vertical pile 1. Finally, the hammer core 6 is removed, and concrete is injected into the axial channel 3 from the upper opening of the axial channel 3, so that both the axial channel 3 and the transverse channel 11 are filled with concrete. After solidification, the transverse insertion rod 81 can be stably placed in the current position, improving the stability of the vertical pile 1 within the ground.

[0033] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A reinforcement structure for hydraulic tunnels, characterized in that, The system includes vertical piles (1) and crossbeams (2). One vertical pile (1) is vertically installed on each side of the hydraulic tunnel. The crossbeams (2) are erected between the two vertical piles (1) and located above the hydraulic tunnel. An axial channel (3) is provided through the vertical pile (1) along its length. A sealing plate (4) is detachably installed on the outer side of the lower opening of the vertical pile (1). A displacement core column (5) is inserted into the axial channel (3) near the lower end of the vertical pile (1). A hammer-driven core column (6) is fitted above the displacement core column (5) in the axial channel (3). A reinforcement mechanism (7) is provided inside the vertical pile (1). When the hammer-driven core column (6) is struck, causing the displacement core column (5) to move vertically downward, the reinforcing mechanism (7) automatically inserts laterally from inside the vertical pile (1) to outside the vertical pile (1); the reinforcing mechanism (7) includes a transverse insertion part (8) and a displacement pushing part (9); a transverse channel (11) is provided through the vertical pile (1), the transverse channel (11) is connected to the interior of the axial channel (3), and the transverse insertion part (8) is slidably installed in the transverse channel (11); the displacement pushing part (9) is installed between the transverse channel (11) and the axial channel (3), and when the displacement core column (5) is pushed by the axial force ... displacement core column (5) moves vertically downward. When the displacement pusher (9) moves vertically downward into the channel (3), the displacement pusher (9) drives the transverse insertion part (8) to move out of the transverse channel (11); the transverse insertion part (8) includes a transverse insertion rod (81) and a connecting block (82). The transverse insertion rod (81) is slidably inserted into the transverse channel (11). A groove (111) is provided on the lower wall of the transverse channel (11) along the length of the transverse channel (11). The connecting block (82) is installed on the transverse insertion rod (81) and slidably inserted into the groove (111). When the displacement core (5) is pushed vertically downward into the axial channel (3), the displacement pusher (9) drives the transverse insertion part (8) to move out of the transverse channel (11). The moving part (9) pulls the connecting block (82) to move in the groove (111) towards the outside of the transverse channel (11); the displacement pushing part (9) includes a steel wire rope (91); an L-shaped channel (12) is provided in the inner wall of the vertical pile (1) between the groove (111) and the axial channel (3); the upper opening of the L-shaped channel (12) is connected to the groove (111), and the side opening is connected to the axial channel (3); one end of the steel wire rope (91) is connected to the connecting block (82), and the other end passes through the groove (111), the L-shaped channel (12) and the axial channel (3) and is connected to the pile side wall of the displacement core column (5).

2. The hydraulic tunnel reinforcement structure according to claim 1, characterized in that, The displacement core (5) is set with a pointed end near the sealing plate (4). The sealing plate (4) is bonded to the outside of the lower opening of the vertical pile (1), and the surface area of ​​the sealing plate (4) is larger than the lower opening area of ​​the vertical pile (1).

3. The hydraulic tunnel reinforcement structure according to claim 1, characterized in that, When the lower pile surface of the hammer-driven core column (6) is in contact with the upper pile surface of the displacement core column (5), the upper pile surface of the hammer-driven core column (6) is outside the axial channel (3).

4. The hydraulic tunnel reinforcement structure according to claim 1, characterized in that, The end of the transverse insert (81) away from the axial channel (3) is set with a pointed end.

5. The hydraulic tunnel reinforcement structure according to claim 1, characterized in that, Steering wheels (121) are rotatably provided at the junction of the chute (111) and the L-shaped channel (12) and at the turning point of the L-shaped channel (12). The steel wire rope (91) changes its extension direction by attaching to the steering wheel (121).

6. The hydraulic tunnel reinforcement structure according to claim 1, characterized in that, Multiple reinforcement mechanisms (7) are staggered on both sides of the axial channel (3) along the length of the vertical pile (1).

7. The hydraulic tunnel reinforcement structure according to claim 6, characterized in that, Both the hammer-driven core column (6) and the displacement core column (5) have a receiving side groove (10) on the upper side wall of the pile near the connection end of the wire rope (91). The receiving side groove (10) is used to allow the wire rope (91) to pass through when the displacement core column (5) moves, thereby preventing the wire rope (91) from being squeezed.

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