Communicating pipe grouting structure and immersed pipe joint

Abstract

The utility model relates to the technical field of immersed tube construction, in particular to a communicating tube grouting structure and an immersed tube joint. The grouting structure comprises a bin grid, a first exhaust pipe and a second exhaust pipe, a bin grid cavity is formed in the bin grid, the bin grid cavity is divided into a grouting area and a vacant area by a partition plate, and a first through hole is formed in the partition plate; the first exhaust pipe communicates with the grouting area and the outside atmosphere, an upper port of the first exhaust pipe is higher than the partition plate, the second exhaust pipe communicates with and blocks the first through hole, and the second exhaust pipe extends into the vacant area. The first exhaust pipe and the second exhaust pipe are arranged, redundant grout can flow into the first exhaust pipe and the second exhaust pipe in the grouting process, the grout level in the exhaust pipes is increased, the grouting amount can be controlled by observing the grout level in the first exhaust pipe, and therefore it is guaranteed that the grout in a grouting area is filled compactly; and the cross section size of the second exhaust pipe is small, so that the weight increased due to the fact that redundant slurry in the bin cells is left in the second exhaust pipe is small, and the weight of the bin cells cannot be excessively increased.

Description

Technical Field

[0001] The utility model relates to the technical field of immersed pipe construction, in particular to a connecting pipe grouting structure and an immersed pipe section. Background Art

[0002] During the pouring process of the immersed tube segment, it was found that the left side of the compartment near the side wall of the bottom plate was connected with the side wall, and the right side was connected with the compartment below the slide. According to the preliminary design requirements, the compartment should be poured to a certain height of the side wall. A partition is set at this height for separation. During the pouring process, it is necessary to ensure that the slurry in the compartment is densely filled, and the concrete height cannot exceed 5cm beyond the partition.

[0003] At present, the conventional grouting method is to open an exhaust pipe next to the grouting hole. The exhaust pipe can not only be used to discharge air, but also the density of the slurry in the cell can be estimated by observing the liquid level in the exhaust pipe. The liquid level in the exhaust pipe reaching a certain height is used as the end condition of grouting. However, this grouting method has major defects for cells with sealed vacant areas above the partitions.

[0004] For example, the condition for the end of the cell pouring is that the liquid level in the exhaust pipe reaches 30cm. Since the side wall is a closed cell and it is difficult to reserve a manhole at the arc position, if it is stopped at 30cm, the excess concrete cannot be processed through a manhole, and the concrete left in the vacant area will directly increase the weight of the cell. If the height is directly controlled at 3cm, it will easily lead to air gap problems, and the height control needs to be difficult to implement at 0-3cm. Utility Model Content

[0005] The purpose of the invention of the utility model is to provide a connecting pipe grouting structure and a immersed pipe section to address the problems existing in the prior art, which can not only meet the compactness requirements of the compartment grouting, but also avoid excessively increasing the weight of the compartment.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A connecting pipe grouting structure comprises a cell, a first exhaust pipe and a second exhaust pipe; a cell cavity is arranged in the cell, the cell cavity is divided into a grouting area and a vacant area by a partition, the grouting area is located below the vacant area, and a first through hole is arranged on the partition; a grouting hole is arranged on the cell for grouting into the grouting area; the first exhaust pipe connects the grouting area with the outside atmosphere, and an upper port of the first exhaust pipe is higher than the partition; the second exhaust pipe connects and blocks the first through hole, and the second exhaust pipe extends into the vacant area.

[0008] The utility model provides a connecting pipe grouting structure, which is used to connect the grouting area with the outside atmosphere by setting a first exhaust pipe, so that the grouting level in the cell cavity can be calculated by observing the grouting level in the first exhaust pipe during grouting, thereby controlling the grouting amount;

[0009] At the same time, a second exhaust pipe is set to connect and block the first through hole. During grouting, excess slurry will flow into the first exhaust pipe and the second exhaust pipe and raise the slurry level in the exhaust pipe. Grouting is stopped after observing that the slurry level in the first exhaust pipe is higher than a certain height of the partition. This can ensure that the slurry in the grouting area is filled densely to the greatest extent and prevent emptying. In addition, the cross-sectional size of the second exhaust pipe is small, and excess slurry in the cell is retained in the second exhaust pipe. Compared with pouring in the vacant area to form a corresponding height, the weight of the cell is increased less, and there is no need to set a manhole to handle the slurry. This simplifies the construction process and ensures the cleanliness of the vacant area.

[0010] As a preferred solution of the present utility model, the first through hole is arranged away from the grouting hole.

[0011] After the slurry enters, it will first fill the gap between the grouting hole and the first through hole, and then extend into the second exhaust pipe. Setting the first through hole away from the grouting hole can increase the area between the grouting hole and the first through hole, prompting the slurry to fill the grouting area densely, thereby improving the density of the slurry in the grouting area.

[0012] As a preferred solution of the present utility model, the first through hole is arranged close to the side wall of the compartment.

[0013] Since the slurry has a certain viscosity, the slurry entering from the grouting hole will form a certain slope in the grouting area. During the grouting process, after the slope surface of the slurry encounters the first through hole, the slurry will enter the second exhaust pipe from the first through hole, making it difficult to fill the side of the first through hole away from the grouting hole densely. Setting the first through hole at a position close to the side wall of the cell can reduce the size of the area that is difficult to fill densely, and the collision and extrusion of the side wall on the slurry will prompt the slurry to fill the area, thereby improving the density of the slurry in the cell.

[0014] As a preferred solution of the present utility model, the number of the first through holes is at least two.

[0015] Providing at least two of the first through holes can prevent a single first through hole or the second exhaust pipe from being accidentally blocked and causing grouting failure, thereby improving the reliability of the grouting structure; two or more of the first through holes can radiate a wider area, which can reduce grouting blind spots and is beneficial to improving the density of the slurry in the grouting area.

[0016] As a preferred solution of the present utility model, the upper ports of the first exhaust pipe and the second exhaust pipe are both 70 cm or more higher than the partition.

[0017] The applicant has found through experiments that when the slurry level in the second exhaust pipe is 30-70 cm higher than the partition, the slurry in the compartment can be ensured to be densely filled.

[0018] As a preferred solution of the utility model, the grouting hole is connected to a feed pipe, and the upper end of the feed pipe is 70 cm or more higher than the partition.

[0019] The feed pipe is provided for auxiliary grouting, and the grouting amount can be controlled by observing the slurry level in the feed pipe, thereby more accurately controlling the slurry level in the first exhaust pipe and the second exhaust pipe, and preventing the slurry from overflowing from the second exhaust pipe due to careless operation.

[0020] As a preferred solution of the present utility model, the first exhaust pipe and the second exhaust pipe are arranged on different sides of the grouting hole.

[0021] For the compartment at the bottom or top of the immersed tube close to the side wall, the horizontal projection of the grouting area is larger than the horizontal projection of the vacant area, and the side wall of the compartment in the grouting area needs to be connected with other compartments. The grouting holes are generally arranged on the top or bottom surface of the compartment wall in the grouting area. At this time, since there is a large area of ​​the grouting hole on the side away from the second exhaust pipe that is in a closed state, the first exhaust pipe is arranged on this side, which can ensure that the air in this range can flow out smoothly, thereby improving the density of the slurry in the grouting area.

[0022] As a preferred solution of the utility model, a second through hole is provided on the compartment, and the second through hole connects the vacant area with the outside atmosphere.

[0023] For the cells with good sealing degree, when the slurry enters the second exhaust pipe, the vacant area will be sealed. The air in the vacant area cannot be discharged smoothly, which will prevent the slurry from continuing to enter the second exhaust pipe. For this reason, a second through hole can be set to connect the vacant area with the outside atmosphere, so that the second exhaust pipe can work normally and ensure the smooth grouting.

[0024] As a preferred solution of the present invention, the second exhaust pipe is a steel pipe, and the second exhaust pipe is welded to the partition.

[0025] The steel pipe is easy to obtain, and has high hardness and strength, meeting the needs of grouting; at the same time, the steel pipe is also easy to weld with the partition, and the fixed connection is convenient and has good reliability.

[0026] The utility model also provides a immersed tube segment, which uses a connecting pipe grouting structure as described above; due to the use of the connecting pipe grouting structure, when the grouting area in the compartment is connected with the vacant area and it is inconvenient to open a manhole to handle the excess slurry, the grouting operation can be completed conveniently and quickly by using the connecting vessel principle, and at the same time, the weight added by the compartment is small, which has little impact on the center of gravity of the immersed tube segment, and can also reduce the number of holes in the pipe wall, thereby improving the structural strength of the immersed tube segment.

[0027] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0028] 1. The utility model provides a connecting pipe grouting structure, which is used to connect the grouting area with the outside atmosphere by setting a first exhaust pipe, so that the slurry level in the cell cavity can be calculated by observing the slurry level in the first exhaust pipe during grouting, thereby controlling the grouting amount; a second exhaust pipe is set to connect and block the first through hole, and excess slurry will flow into the first exhaust pipe and the second exhaust pipe during grouting, and raise the slurry level in the exhaust pipe, and stop grouting after observing that the slurry level in the first exhaust pipe is higher than a certain height of the partition, which can ensure the grouting area The dense filling of the slurry is prevented from appearing empty, and the cross-sectional size of the second exhaust pipe is small, and the excess slurry in the cell is retained in the second exhaust pipe. Compared with pouring in the vacant area to form a corresponding height, the weight of the cell is small, and there is no need to set a manhole to handle the slurry, which simplifies the construction process and ensures the cleanliness of the vacant area.

[0029] 2. The utility model provides an immersed tube segment, which uses a connecting pipe grouting structure as described above. When the grouting area in the compartment is connected with the vacant area and it is inconvenient to open a manhole to handle the excess slurry, the grouting operation can be completed conveniently and quickly by using the connecting vessel principle. At the same time, the weight added by the compartment is small, which has little impact on the center of gravity of the immersed tube segment. It can also reduce the number of holes in the pipe wall and improve the structural strength of the immersed tube segment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of the bin described in the utility model;

[0031] Figure 2 It is a side view of the bin grid of the utility model;

[0032] Figure 3 It is a schematic diagram of grouting of the bin grid described in the utility model.

[0033] Markings in the figure: 1-grid; 2-first exhaust pipe; 3-second exhaust pipe; 4-partition; 5-grouting area; 6-vacant area; 7-first through hole; 8-second through hole; 9-grouting hole; 10-discharge pipe. DETAILED DESCRIPTION

[0034] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0035] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0036] In the description of the present invention, it should be understood that the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the scope of protection of the present invention.

[0037] In the description of the embodiments, "several", "plurality" and "multiple" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0038] Example 1

[0039] like Figure 1-2 As shown, a connecting pipe grouting structure includes a cell 1, a first exhaust pipe 2 and a second exhaust pipe 3, wherein the cell 1 is a closed or semi-closed component formed by an enclosure structure, wherein the enclosure structure can be a steel plate, a wooden plate or other plate, and the portion enclosed by the enclosure structure is a cell cavity, which is divided by a horizontally or obliquely arranged partition 4, wherein the area below the partition 4 is a grouting area 5, and the area above the partition 4 is a vacant area 6, and a first through hole 7 is provided on the partition 4 so that the grouting area 5 and the vacant area 6 are connected; generally speaking, the grouting area 5 has good airtightness, and the first through hole 7 provided on the partition 4 enables the air in the grouting area 5 to flow into the vacant area 6 through the first through hole 7 during the grouting process, thereby preventing the grouting area 5 from becoming emptied due to the inability to discharge air, so as to ensure the structural strength of the grouting area 5.

[0040] The first exhaust pipe 2 can be arranged on the cell wall of the grouting area 5, so that the first exhaust pipe 2 can connect the grouting area 5 with the outside atmosphere. The shape of the first exhaust pipe 2 can be a straight pipe or a curved pipe. In the present embodiment, a straight pipe is preferably used, and it is vertically arranged on the upper wall of the cell in the grouting area 5. For the case where the opening is arranged on the side wall, the first exhaust pipe 2 can be an L-shaped curved pipe, and the long side of the L-shaped curved pipe is kept vertically arranged. In this way, the upper port of the first exhaust pipe 2 can be located at a certain height above the partition 4 with less material.

[0041] The second exhaust pipe 3 is arranged in the cell cavity, and the second exhaust pipe 3 is connected to and blocks the first through hole 7. The so-called connection and blocking means that the pipe mouth of the second exhaust pipe 3 is sealed and connected with the first through hole 7, so that the slurry can and can only enter the second exhaust pipe 3 from the first through hole 7, thereby prompting the excess slurry in the grouting process to flow into the second exhaust pipe 3 and form a certain slurry surface; in addition, the upper end of the second exhaust pipe 3 extends into the vacant area 6. Similar to the first exhaust pipe 2, the second exhaust pipe 3 is preferably a straight pipe and is vertically arranged, so as to utilize less material to make the upper end of the second exhaust pipe 3 be at a certain height above the partition 4.

[0042] The usage and principle of this utility model:

[0043] Before the cell 1 is formed, the second exhaust pipe 3 is first fixed on the partition 4. When grouting is required after the cell 1 is formed, the first exhaust pipe 2 is installed, and then grouting is injected into the grouting area 5 of the cell cavity through the grouting hole 9. After the grouting area 5 is filled with slurry, the excess slurry will flow into the first exhaust pipe 2 and the second exhaust pipe 3, and form a slurry surface of a certain height in the first exhaust pipe 2 and the second exhaust pipe 3. At this time, due to the principle of communicating vessels and considering the viscosity of the slurry, the slurry surface heights of the first exhaust pipe 2 and the second exhaust pipe 3 will be roughly equal. Figure 3 As shown, when the slurry level in the exhaust pipe reaches the grouting end condition, the grouting is stopped. At this time, the excess slurry remaining in the cell cavity is only a small section in the second exhaust pipe 3, which has little effect on the weight of the cell 1 and does not require a manhole for processing.

[0044] In summary, the utility model provides a connecting pipe grouting structure, which is used to connect the grouting area 5 with the outside atmosphere by setting a first exhaust pipe 2, so that during grouting, the slurry level height in the cell cavity can be inferred by observing the slurry level height of the first exhaust pipe 2, thereby controlling the grouting amount; a second exhaust pipe 3 is set to connect and block the first through hole 7, and excess slurry will flow into the first exhaust pipe 2 and the second exhaust pipe 3 during grouting, and raise the slurry level in the exhaust pipe, and the grouting is stopped after observing that the slurry level in the first exhaust pipe 2 is higher than a certain height of the partition 4, which can ensure that the slurry in the grouting area 5 is filled densely to the greatest extent and prevent the occurrence of emptying. In addition, the cross-sectional size of the second exhaust pipe 3 is small, and the excess slurry in the cell 1 is retained in the second exhaust pipe 3. Compared with pouring in the vacant area 6 to form a corresponding height, the weight of the cell 1 is increased less, and there is no need to set a manhole to handle the slurry, which simplifies the construction process and ensures the cleanliness of the vacant area 6.

[0045] In one or more embodiments, the first through hole 7 is arranged away from the grouting hole 9, that is, the first through hole 7 is arranged on a side of the partition 4 away from the grouting hole 9. Those skilled in the art can understand that the slurry entering from the grouting hole 9 will diffuse from the grouting hole 9 to the surrounding areas, and the diffused slurry will enter the second exhaust pipe 3 from the first through hole 7 after encountering the first through hole 7 to form a slurry surface. Arranging the first through hole 7 away from the grouting hole 9 will prompt the slurry to first fill the gap between the grouting hole 9 and the first through hole 7, thereby improving the density of the slurry in the grouting area 5.

[0046] In one or more embodiments, the first through hole 7 is arranged close to or close to the side wall of the cell 1. Those skilled in the art can understand that the slurry is a flowable fluid with a certain viscosity. The slurry entering from the grouting hole 9 will form a slope that diffuses and descends from itself to the surrounding areas. During the grouting process, due to the continuous entry of the slurry, the slope will move around to fill the grouting area 5. When the slope of the slurry encounters the first through hole 7, the slurry can enter the second exhaust pipe 3 from the first through hole 7, which will make the area on the side of the first through hole 7 away from the grouting hole 9 more difficult to be completely filled and densely filled with the slurry. For this reason, the first through hole 7 is arranged at a position close to the side wall of the cell 1, which can not only reduce the area of ​​the area that is difficult to fill densely, but also can make use of the blocking effect of the cell side wall on the slurry, so that the blocked slurry flows to both sides, thereby filling the area on the side of the first through hole 7 away from the grouting hole 9 densely.

[0047] In one or more embodiments, the number of the first through holes 7 is at least two, and accordingly, at least two second exhaust pipes 3 need to be provided to cooperate with the first through holes 7. Since the compartment 1 is difficult to dismantle and repair after being formed, providing multiple first through holes 7 and second exhaust pipes 3 can reduce the probability of accidental blockage of the two, thereby improving the reliability of the grouting structure; at the same time, two or more first through holes 7 can be dispersedly arranged, so that the first through holes 7 can radiate a wider area, which can reduce the area that cannot be densely filled with slurry during the grouting process, thereby improving the density of the slurry in the grouting area 5.

[0048] In one or more embodiments, the upper ends of the first exhaust pipe 2 and the second exhaust pipe 3 are both higher than the partition by 470 cm or more. The applicant has found through experiments that for conventional cell sizes, when the slurry level in the second exhaust pipe 3 is higher than the top surface of the grouting area 5 or the partition by 430-70 cm, the slurry in the cell 1 can be ensured to be densely filled. For this reason, the upper end of the second exhaust pipe 3 is designed to be higher than the partition by 470 cm or more to meet the dense slurry in the grouting area 5. Of course, the height of the second exhaust pipe 3 also needs to be comprehensively considered based on the height of the vacant area 6 and the size of the grouting area 5. This embodiment only points out the preferred scheme for reference, and the specific height can be designed according to actual working conditions.

[0049] According to the principle of communicating vessels, the slurry level height of the first exhaust pipe 2 will be approximately equal to the slurry level height of the second exhaust pipe 3. For this reason, the upper port of the first exhaust pipe 2 is designed to be 470 cm or more above the partition. However, considering the viscosity of the slurry and the position of the grouting hole 9, the height difference of the slurry levels of the first exhaust pipe 2 and the second exhaust pipe 3 may be large. Before construction, a simulation test can be carried out according to the working conditions, and then adaptive adjustments can be made. This embodiment only points out the preferred scheme for reference.

[0050] On this basis, it is more preferred that the grouting hole 9 is connected to a feed pipe 10, and the upper end of the feed pipe 10 is higher than the partition by 470 cm or more. Those skilled in the art can understand that when grouting is performed through the grouting hole 9, a pumping method can be used to use the power of the pump to force the slurry into the cell 1, or a feed pipe 10 can be set to connect the grouting hole 9, and the slurry is poured into the feed pipe 10, so that the slurry flows into the grouting area 5 of the cell 1 under gravity or other auxiliary effects; this embodiment preferably uses the feed pipe 10 to assist the grouting, by The height of the slurry level in the second exhaust pipe 3 is generally invisible, and the communicating vessel principle can only reflect the relationship between the slurry level heights of the first exhaust pipe 2 and the second exhaust pipe 3 in a balanced state. A feed pipe 10 is installed in the grouting hole 9, and the grouting amount is controlled by observing the slurry level height in the feed pipe 10. This not only has a simple structure, but also can prevent the second exhaust pipe 3 from accidentally overflowing due to improper operation; similarly, the upper port of the feed pipe 10 is preferably set 470 cm higher than the partition, and can also be adaptively adjusted according to on-site working conditions.

[0051] like Figure 1 As shown, for the compartment 1 at the bottom or top of the immersed tube close to the side wall, the horizontal projection area of ​​the grouting area 5 is larger than the horizontal projection area of ​​the vacant area 6, and the compartment side wall of the grouting area 5 is often connected to other compartments 1. In this case, the grouting holes 9 are generally arranged on the upper wall or lower wall of the compartment in the grouting area 5 ( Figure 1 Considering that the slurry flows, the air in the grouting area 5 will be squeezed to the side corners, and the grouting hole 9 is away from the side of the first through hole 7, such as Figure 1 The right side of the grouting hole 9 is often in a closed state. The air cannot be discharged smoothly, which will cause the slurry to be unable to fill the compartment 1 densely, thereby causing a void phenomenon that affects the structural strength of the grouting area 5. For this reason, in one or more embodiments, the first exhaust pipe 2 and the second exhaust pipe 3 can be set on different sides of the grouting hole 9, so that the air on the side of the grouting hole 9 away from the second exhaust pipe 3 can be discharged smoothly through the first exhaust pipe 2, thereby improving the density of the slurry in the grouting area 5.

[0052] In one or more embodiments, a second through hole 8 is provided on the cell 1, and the second through hole 8 connects the vacant area 6 with the outside atmosphere. For the cell 1 with good sealing performance, after the slurry enters the second exhaust pipe 3, the vacant area 6 will be sealed, and the air in the vacant area 6 is difficult to be discharged, thereby preventing the slurry from continuing to enter the second exhaust pipe 3. At this time, the slurry level in the first exhaust pipe 2 cannot correctly reflect the slurry level in the second exhaust pipe 3, and due to the obstruction of air, the position of the grouting area 5 close to the second exhaust pipe 3 is also difficult to be densely filled with slurry, so that the grouting structure cannot normally achieve the grouting target. For this reason, a second through hole 8 is selected to connect the vacant area 6 with the outside atmosphere, such as Figure 1 As shown, the second through hole 8 can be arranged on the side wall of the compartment of the vacant area 6, so as to ensure the smooth progress of grouting.

[0053] In one or more embodiments, the second exhaust pipe 3 is a steel pipe, and the second exhaust pipe 3 is welded to the partition 4. The steel pipe is easy to obtain, has high hardness and strength, and meets the grouting requirements; at the same time, the steel pipe is easy to weld to the partition 4, is easy to fix and connect, and has good connection reliability.

[0054] Example 2

[0055] The present embodiment provides a immersed tube segment, which uses a connecting pipe grouting structure as described in Example 1. Due to the use of the above grouting structure, when the grouting area 5 in the compartment 1 is connected with the vacant area 6 and it is inconvenient to open a manhole to handle the excess slurry, the grouting operation can be completed conveniently and quickly by using the connecting vessel principle. At the same time, the weight added by the compartment 1 is small, which has little impact on the center of gravity of the immersed tube segment. It can also reduce the number of holes in the pipe wall and improve the structural strength of the immersed tube segment.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A connecting pipe grouting structure, characterized in that: It comprises a compartment (1), a first exhaust pipe (2) and a second exhaust pipe (3); A cell cavity is provided in the cell (1), the cell cavity is divided into a grouting area (5) and a vacant area (6) by a partition (4), the grouting area (5) is located below the vacant area (6), and a first through hole (7) is provided on the partition (4); The compartment (1) is provided with grouting holes (9) for grouting into the grouting area (5); The first exhaust pipe (2) is in communication with the grouting area (5) and the outside atmosphere, and an upper end of the first exhaust pipe (2) is higher than the partition plate (4); The second exhaust pipe (3) is connected to and blocks the first through hole (7), and the second exhaust pipe (3) extends into the vacant area (6).

2. A connecting pipe grouting structure according to claim 1, characterized in that: The first through hole (7) is arranged away from the grouting hole (9).

3. A connecting pipe grouting structure according to claim 1, characterized in that: The first through hole (7) is arranged close to the side wall of the compartment (1).

4. A connecting pipe grouting structure according to claim 1, characterized in that: The number of the first through holes (7) is at least two.

5. A connecting pipe grouting structure according to claim 1, characterized in that: The upper ends of the first exhaust pipe (2) and the second exhaust pipe (3) are both 70 cm or more higher than the partition plate (4).

6. A connecting pipe grouting structure according to claim 5, characterized in that: The grouting hole (9) is connected to a feed pipe (10), and an upper end of the feed pipe (10) is 70 cm or more higher than the partition plate (4).

7. A connecting pipe grouting structure according to claim 1, characterized in that: The first exhaust pipe (2) and the second exhaust pipe (3) are arranged on different sides of the grouting hole (9).

8. A connecting pipe grouting structure according to any one of claims 1 to 7, characterized in that: The compartment (1) is provided with a second through hole (8), and the second through hole (8) is connected with the vacant area (6) and the outside atmosphere.

9. A connecting pipe grouting structure according to any one of claims 1 to 7, characterized in that: The second exhaust pipe (3) is a steel pipe, and the second exhaust pipe (3) is welded to the partition plate (4).

10. An immersed tube segment, characterized in that: Use a connecting pipe grouting structure as described in any one of claims 1-9.

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