Tunnel pipe gallery used for containing large-diameter water taking and draining pipeline and construction method of tunnel pipe gallery

Abstract

Compared with the prior art, the tunnel pipe gallery for containing the large-diameter water taking and draining pipeline has the advantages that a hanging beam is arranged at the top of the pipe gallery space, a hoist crane is arranged on the hanging beam, and the hanging beam can provide a stable mounting foundation with high bearing capacity for the hoist crane; the hoist crane can effectively utilize the top of the pipe gallery to hoist a large number of large-size pipelines and other components, meanwhile, the hoist crane has the safety characteristics of being compact in structure, flexible in operation and reliable in braking, and stable supporting is provided by combining with the hoisting beam; the high efficiency and safety of hoisting operation in the limited space of the tunnel pipe gallery are further guaranteed, and efficient and reliable hoisting of a large number of large-size pipelines is achieved.

Description

Technical Field

[0001] This invention relates to the field of underground engineering technology, and in particular to a tunnel gallery for accommodating large-diameter water intake and drainage pipes and its construction method. Background Technology

[0002] For nuclear power plants, intake and drainage tunnels often need to extend into the deep sea or specific water areas to meet environmental protection and cooling requirements. This involves drawing water from the seashore to the inland power plant for cooling, and then discharging it out to sea over a further distance. Seawater and radioactive wastewater have certain impacts on the surrounding environment, necessitating significant burial depths, making construction extremely difficult.

[0003] In addition, the tunnels and utility tunnels of nuclear power plants have other unique characteristics. First, nuclear power plants require a large amount of seawater for direct-flow cooling, which necessitates very large diameters for their intake and drainage pipes and culverts. Combined with the considerable burial depth and limited space, this makes it difficult to ensure efficient and high-quality installation of the utility tunnel structure and construction methods within a confined space. Furthermore, it makes subsequent structural maintenance inconvenient and construction quite dangerous.

[0004] Therefore, it is necessary to develop a new type of tunnel gallery for accommodating large-diameter intake and drainage pipes and its construction method to improve the problems existing in related technologies. Summary of the Invention

[0005] The purpose of this invention is to provide a tunnel gallery for accommodating large-diameter water intake and drainage pipes and a method for constructing the same, which enables efficient and convenient construction and maintenance.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] This invention provides a tunnel utility gallery for accommodating large-diameter water intake and drainage pipes, comprising:

[0008] Segmentation, used to create utility tunnel space within a tunnel;

[0009] A first pad is disposed at the bottom of the pipe gallery space, and at least two pipe supports are provided on the first pad;

[0010] The pipes are installed one-to-one with the pipe supports;

[0011] A suspension beam is installed at the top of the pipe gallery space;

[0012] A hoist is installed on the lifting beam.

[0013] Furthermore, it also includes a partition and a second pad; the partition is spaced above the first pad to form a space for placing the upper and lower layers of the pipes; the second pad is disposed on the partition, and the pipes are correspondingly disposed on the pipe supports of the second pad.

[0014] Furthermore, it also includes a column; the first pad is provided with a cup opening, the cup opening is distributed on both sides of the tube support, the bottom end of the column is disposed in the cup opening, and the other end is connected to the partition.

[0015] Furthermore, it also includes interconnected horizontal and vertical beams to form an upper support structure; the partition is disposed on the horizontal and vertical beams, and the column is connected to the horizontal or vertical beam.

[0016] Furthermore, the pipeline includes a water intake pipeline and a drainage pipeline, with the water intake pipeline disposed on the first pad and the drainage pipeline disposed on the second pad.

[0017] Furthermore, the pipeline includes a discharge pipe and a sensor for detecting and discharging liquid leaks; the discharge pipe is disposed in a groove on the first pad, the groove being located between adjacent pipe supports.

[0018] Furthermore, it also includes a maintenance access channel located between adjacent pipes and above the pipe trench.

[0019] Furthermore, the first pad includes a pressure-bearing part and a support part connected to each other; the pressure-bearing part extends bidirectionally and connects to both sides of the tube segment, and the support part extends downward and connects to the bottom of the tube segment.

[0020] Furthermore, a drainage ditch is provided at the bottom of the support portion, and the drainage ditch extends longitudinally through the support portion.

[0021] The present invention also provides a method for constructing a tunnel utility gallery, comprising the following steps:

[0022] Excavate a tunnel and assemble pipe segments inside the tunnel to form a utility tunnel space;

[0023] A first pad is placed at the bottom of the tube gallery space;

[0024] A lifting beam and a hoist are installed at the top of the pipe gallery space;

[0025] Use a hoist to lift the pipes one by one onto at least two pipe supports of the first pad.

[0026] Compared with the prior art, the tunnel utility gallery for accommodating large-diameter water intake and drainage pipes and its construction method provided by the present invention have the following beneficial effects:

[0027] 1. This invention provides a tunnel utility gallery for accommodating large-diameter water intake and drainage pipes. Because a lifting beam is installed at the top of the utility gallery space, and a hoist is mounted on this beam, the beam provides a stable and load-bearing foundation for the hoist. This allows the hoist to effectively utilize the top of the utility gallery to lift large-sized and numerous pipes and other components. Simultaneously, the hoist itself features a compact structure, flexible operation, and reliable braking, ensuring safety. Combined with the stable support provided by the lifting beam, this further guarantees the efficiency and safety of lifting operations within the confined space of the tunnel utility gallery, achieving efficient and reliable lifting of large-sized and numerous pipes.

[0028] 2. The partition above the first pad is used to form a space for placing pipes in two layers; the second pad is set on the partition, which improves the utilization rate of the pipe gallery space and can accommodate more pipes in the limited tunnel space, meeting the layout requirements when there are a large number of large-diameter pipes. At the same time, the layered setting also facilitates the classification management and maintenance of different pipes.

[0029] 3. The cup on the first pad provides precise installation positioning for the column, ensuring the verticality and stability of the column installation; the two ends of the column are connected to the cup and the partition respectively, which can provide reliable support for the upper partition and pipes, enhance the load-bearing capacity of the upper structure, and ensure the structural safety of the pipe layout of the upper and lower layers.

[0030] 4. The upper support structure formed by the interconnection of crossbeams and longitudinal beams provides a large-area and stable support platform for the partition, enabling the partition to bear the weight of the pipe above more evenly. The columns are connected to the crossbeams or longitudinal beams to transfer the load of the upper structure to the first pad block, and then distribute it to the pipe segments, improving the stress rationality and structural stability of the entire upper structure.

[0031] 5. The water intake pipe and the drainage pipe are respectively placed on the first pad in the lower layer and the second pad in the upper layer, realizing the layered arrangement of the two types of pipes, avoiding mutual interference between different pipes, facilitating differentiation and management, and also providing convenient conditions for subsequent inspection and maintenance.

[0032] 6. The discharge pipe is installed in the pipe groove between adjacent pipe supports on the first pad block. At the same time, a sensor is installed to detect whether liquid leakage occurs in the pipe in real time. Once a leakage is detected, the discharge pipe can promptly discharge the leaked material from the pipe rack and prompt maintenance to avoid the accumulation of leaked material in the pipe rack and cause safety hazards. The pipe groove is set between adjacent pipe supports to facilitate the flow of leaked material, which not only makes reasonable use of the space between the pipe supports, but also ensures the stable installation of the discharge pipe.

[0033] 7. The maintenance passage is set between adjacent pipes, providing staff with dedicated walking and operating space to facilitate daily inspection, maintenance and repair of the pipes; the design above the pipe trench allows staff to easily observe the discharge pipes in the pipe trench from the maintenance passage.

[0034] 8. The pressure-bearing part of the first pad extends in both directions to connect to both sides of the pipe segment, and the support part extends downward to connect to the bottom of the pipe segment. This can evenly distribute the load transmitted by the pipeline onto the pipe segment, enhance the load-bearing capacity of the first pad, and prevent the first pad from shifting when bearing the weight of the pipeline. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the tunnel utility corridor in an embodiment of the present invention.

[0036] Figure label:

[0037] 1. Pipe segments;

[0038] 21. First pad block; 211. Pressure-bearing part; 212. Supporting part;

[0039] 22. Second pad block;

[0040] 3. Partition;

[0041] 4. Columns;

[0042] 51. Water intake pipe; 52. Drainage pipe; 53. Discharge pipe; 54. Ventilation pipe;

[0043] 6. Maintenance access;

[0044] 7. Drainage ditch;

[0045] 8. Suspended beam. Detailed Implementation

[0046] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0047] This invention provides a tunnel utility gallery for accommodating large-diameter water intake and drainage pipes, such as... Figure 1 As shown, it includes:

[0048] Segment 1, used to form a utility tunnel space within the tunnel;

[0049] The first pad 21 is set at the bottom of the pipe gallery space, and at least two pipe supports are provided on the first pad 21;

[0050] Each pipe is installed in a corresponding pipe support;

[0051] Hanging beam 8 is installed at the top of the pipe gallery space;

[0052] The hoist is installed on the lifting beam 8.

[0053] In some specific embodiments, segment 1 is a precast reinforced concrete structure, arc-shaped, and circumferentially spliced ​​to form a circular surface. Embedded lifting points are set within segment 1 at the top of the utility tunnel space. The first pad 21 has a length matching the width of the utility tunnel. The pipe support is a semi-circular groove structure, and a structural layer can be set on the inner wall of the pipe support. The specific material of the structural layer can be selected as an anti-slip material, such as a rubber pad, depending on requirements. The surface of the structural layer has anti-slip textures. The lifting beam 8 is fixed to the embedded lifting points on segment 1. Lifting holes are opened on the lower side of the lifting beam 8 to accommodate the hoist. The hoist is connected to the track on the lifting beam 8 via a traveling trolley, enabling lifting operations to be carried out in any direction along the extension of the utility tunnel.

[0054] In some embodiments of the present invention, a partition 3 and a second pad 22 are also included; the partition 3 is spaced above the first pad 21 to form a space for placing two layers of pipes; the second pad 22 is disposed on the partition 3, and the pipes are correspondingly disposed on the pipe supports of the second pad 22.

[0055] In some specific embodiments, the partition 3 is a precast concrete slab, and the structure of the second pad 22 is different from that of the first pad 21. The first pad 21 is provided with two pipe supports arranged at intervals, while the second pad 22 is provided with one pipe support. The number of second pads 22 can be multiple, depending on the number of pipes in the upper placement space.

[0056] In some embodiments of the present invention, a column 4 is also included; a cup opening is provided on the first pad 21, the cup opening is distributed on both sides of the tube support, the bottom end of the column 4 is provided inside the cup opening, and the other end is connected to the partition 3.

[0057] In some embodiments of the present invention, interconnected horizontal beams and vertical beams are also included to form an upper support structure; partitions 3 are disposed on the horizontal beams and vertical beams, and columns 4 are connected to the horizontal beams or vertical beams.

[0058] In some specific embodiments, the column 4 is a precast reinforced concrete column, and the cup-shaped opening of the first pad 21 is filled with fine aggregate concrete to ensure a reliable connection between the column 4 and the first pad 21. A cap is provided at the top of the column 4, with embedded steel connectors that connect to the crossbeams. The crossbeams and longitudinal beams can be steel structures, connected by high-strength bolts to form a grid-like frame, with partitions 3 connected to the upper surface of the frame. Embedded parts are installed on the sides of the column 4, providing longitudinal steel supports.

[0059] In some embodiments of the present invention, the pipeline includes a water intake pipeline 51 and a drainage pipeline 52, with the water intake pipeline 51 disposed on a first pad 21 and the drainage pipeline 52 disposed on a second pad 22.

[0060] In some embodiments of the present invention, the pipeline includes a discharge pipe 53 and a sensor for detecting and discharging liquid leaks; the discharge pipe 53 is disposed in a groove on the first pad 21, the groove being located between adjacent pipe supports.

[0061] In some specific embodiments, the sensors on the discharge pipe 53 can be optical sensors, electrochemical sensors, gas sensors, flow sensors, or pressure sensors, used to identify data such as the composition, flow rate, and pressure of the leaked effluent.

[0062] In some specific embodiments, the groove is located on the upper surface of the first pad 21.

[0063] In some embodiments of the present invention, an inspection channel 6 is also included. The inspection channel 6 is located between adjacent pipes and above the pipe trench. The upper surface of the first pad 21 is covered with a plate-like structure with mesh that allows a view below, so as to cover the floor of the pipe trench to form the inspection channel 6.

[0064] In some specific embodiments, the maintenance channel 6 includes an upper maintenance channel 6 and a lower maintenance channel 6. The upper maintenance channel 6 is located between adjacent second pads 22. The lower maintenance channel 6 is located between adjacent pipe supports on the first pad 21.

[0065] In some embodiments of the present invention, the first pad 21 includes a pressure-bearing part 211 and a support part 212 connected to each other; the pressure-bearing part 211 extends bidirectionally and connects to both sides of the tube segment 1, and the support part 212 extends downward and connects to the bottom of the tube segment 1.

[0066] In some specific embodiments, the pressure-bearing part 211 and the support part 212 are integrally formed into a T-shaped structure, and the two are integrally cast to form an integrated structure.

[0067] In some embodiments of the present invention, a drainage ditch 7 is provided at the bottom of the support portion 212, and the drainage ditch 7 extends longitudinally through the support portion 212.

[0068] In some specific embodiments, ventilation ducts and lighting facilities are also installed on the top of the utility tunnel space. The ventilation ducts have a diameter of 300 to 500 mm. The drainage pipe 52 has an inner diameter of 2000 to 2400 mm. The water intake pipe 51 has an inner diameter of 2600 to 3000 mm. There are two discharge pipes 53, one in use and one as a backup, with an inner diameter of 300 to 500 mm. The utility tunnel formed by the segment 1 has an inner diameter of 9000 to 10000 mm.

[0069] Specifically, the diameter of the ventilation duct can be 300 mm, 350 mm, 400 mm, 450 mm, or 500 mm.

[0070] Specifically, the inner diameter of the drainage pipe 52 can be 2000 mm, 2050 mm, 2100 mm, 2150 mm, 2200 mm, 2250 mm, 2300 mm, 2350 mm, or 2400 mm.

[0071] Specifically, the inner diameter of the water intake pipe 51 can be 2600 mm, 2650 mm, 2700 mm, 2750 mm, 2800 mm, 2850 mm, 2900 mm, 2950 mm, or 3000 mm.

[0072] Specifically, the inner diameter of the discharge pipe 53 can be 300 mm, 350 mm, 400 mm, 450 mm, or 500 mm.

[0073] Specifically, the inner diameter of the utility tunnel can be 9050 mm, 9100 mm, 9150 mm, 9200 mm, 9250 mm, 9300 mm, 9350 mm, 9400 mm, 9450 mm, 9500 mm, 9550 mm, 9600 mm, 9650 mm, 9700 mm, 9750 mm, 9800 mm, 9850 mm, 9900 mm, or 9950 mm.

[0074] This invention also provides a method for constructing a tunnel utility gallery, comprising the following steps:

[0075] S01: Excavate a tunnel and assemble segment 1 inside the tunnel to form a utility tunnel space;

[0076] S02: Place the first pad 21 at the bottom of the tube gallery space;

[0077] S03: Install a hanging beam 8 and a hoist at the top of the utility tunnel space;

[0078] S04: Use a hoist to hoist the pipes one by one onto at least two pipe supports of the first pad block 21.

[0079] In this embodiment, the first pad 21 can be lowered from the middle of the tunnel towards both ends using a forklift. The pipe can be lowered from the middle of the tunnel towards both ends using a hoist. The pipe joint is placed in the middle of the first pad 21 or the second pad 22.

[0080] In this embodiment, the longitudinal beams, transverse beams, partitions 3, and columns 4 are all hoisted using hoists.

[0081] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this invention.

[0082] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0083] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0084] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0085] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0086] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A tunnel utility gallery for accommodating large-diameter intake and drainage pipes, characterized in that, include: Segment (1) is used to form a utility tunnel space within the tunnel; The first pad (21) is disposed at the bottom of the pipe gallery space, and at least two pipe supports are provided on the first pad (21); Pipes are installed one-to-one with the pipe supports; A hanging beam (8) is installed at the top of the pipe gallery space; The hoist is installed on the lifting beam (8).

2. The tunnel utility gallery according to claim 1, characterized in that, It also includes a partition (3) and a second pad (22); the second pad (22) is spaced above the first pad (21) to form a space for placing the pipes in the upper and lower layers; the second pad (22) is disposed on the partition (3), and the pipes are disposed on the pipe supports of the second pad (22).

3. The tunnel utility gallery according to claim 2, characterized in that, It also includes a column (4); the first pad (21) is provided with a cup opening, the cup opening is distributed on both sides of the tube support, the bottom end of the column (4) is provided in the cup opening, and the other end is connected to the partition (3).

4. The tunnel utility gallery according to claim 3, characterized in that, It also includes interconnected horizontal beams and vertical beams to form an upper support structure; the partition (3) is set on the horizontal beams and vertical beams, and the column (4) is connected to the horizontal beams or the vertical beams.

5. The tunnel utility gallery according to claim 2, characterized in that, The pipeline includes a water intake pipe (51) and a drainage pipe (52), the water intake pipe (51) being disposed on the first pad (21) and the drainage pipe (52) being disposed on the second pad (22).

6. The tunnel utility gallery according to claim 1, characterized in that, The pipeline includes a discharge pipe (53) and a sensor for detecting and discharging liquid leaks; the discharge pipe (53) is disposed in a groove on the first pad (21), the groove being located between adjacent pipe supports.

7. The tunnel utility gallery according to claim 6, characterized in that, It also includes a maintenance channel (6), which is located between adjacent pipes and above the pipe trench.

8. The tunnel utility gallery according to claim 1, characterized in that, The first pad (21) includes a pressure-bearing part (211) and a support part (212) connected to each other; the pressure-bearing part (211) extends in both directions and connects to both sides of the tube segment (1), and the support part (212) extends downward and connects to the bottom of the tube segment (1).

9. The tunnel utility gallery according to claim 8, characterized in that, The bottom of the support (212) is provided with a drainage ditch (7), which runs longitudinally through the support (212).

10. A method for constructing a tunnel utility gallery, characterized in that, The method for constructing a tunnel utility gallery as described in any one of claims 1 to 9 includes the following steps: Excavate a tunnel and assemble pipe segments (1) inside the tunnel to form a pipe gallery space; A first pad (21) is placed at the bottom of the tube gallery space; A lifting beam (8) and a hoist are installed at the top of the pipe gallery space; Use a hoist to lift the pipes one by one onto at least two pipe supports of the first pad (21).

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