Receiving tunnel portal water stopping device of tube push bench

Abstract

The utility model belongs to the technical field of pipe jacking section construction, and particularly relates to a pipe jacking machine receiving tunnel portal water stopping device which comprises a receiving tunnel ring and further comprises a water stopping assembly, the water stopping assembly comprises a plurality of water stopping steel plates, the water stopping steel plates are fixed in the receiving tunnel ring in parallel, and a gap is formed between every two adjacent water stopping steel plates; the limiting assembly is fixed in the receiving hole ring and used for supporting the water stop steel plate from the rear side; according to the utility model, the plurality of water stop steel plates which are distributed in parallel at intervals are arranged in the receiving hole ring, the water stop effect of the receiving hole ring is achieved through the attachment between the water stop steel plates and the jacking pipe joint, the water stop effect is good, the water stop steel plates are not easy to age and deform, the service life is long, and the design of the plurality of water stop steel plates is convenient to use. Even if the water stop steel plate on the front side slightly deforms, the overall water stop effect is not affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe jacking section construction, and particularly relates to a water-stopping device for a receiving tunnel door of a pipe jacking machine. Background Art

[0002] Pipe jacking refers to a concealed excavation construction method used when tunnels or underground pipelines pass through various obstacles such as railways, roads, rivers or buildings. During construction, the pipe is pressed into the soil layer by a hydraulic jack supported on the rear seat of the foundation pit through force-transmitting jacking irons and guide rails. At the same time, the soil on the front of the pipe is excavated and transported away. When the first section of the pipe is completely pushed into the soil layer, the second section of the pipe is connected to the back and continues to be pushed in. In this way, the pipe sections are pushed in one by one, the interfaces are made, and the culvert is built.

[0003] In actual use, hydraulic machinery is usually used to push the jacking pipe section into the receiving hole ring. In order to ensure the sealing and avoid leakage from the hole, water-stopping measures need to be taken for the jacking pipe section and the receiving hole ring.

[0004] At present, steel plates are usually embedded in the prefabricated concrete parts of the jacking pipe sections to improve the sealing performance. In addition, rubber water-stop curtains are sometimes installed on the tunnel ring to stop water.

[0005] However, in actual use, it was found that it is difficult to fully guarantee the water-stopping performance by simply relying on the measure of pre-embedded steel plates on the prefabricated concrete parts of the jacking pipe segments. This is mainly because the jacking force applied to the jacking pipe segments is very large, and the jacking process can easily cause slight deformation of the steel plates, affecting the water-stopping effect. A series of special protective measures need to be set up, which is rather troublesome.

[0006] However, rubber waterstop curtains are prone to aging, deformation, and short service life, and their material is relatively soft. During the construction process, sharp stones in the concrete may scratch the rubber waterstop curtain, causing the waterstop project to fail. The smoothness and stability of the rubber waterstop curtain's fixation will also affect the waterstop effect.

[0007] In order to solve the above problems, the utility model proposes a water-stopping device for a receiving tunnel door of a pipe jacking machine. Utility Model Content

[0008] In order to solve the above problems existing in the prior art, the utility model provides a water-stopping device for a receiving tunnel of a pipe jacking machine, which has the characteristics of being easy to use, easy to construct and having a good water-stopping effect.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a water-stop device for a receiving hole of a pipe jacking machine, comprising a receiving hole ring and a water-stop assembly, wherein the water-stop assembly comprises:

[0010] Waterstop steel plates, wherein a plurality of the waterstop steel plates are fixed in parallel in the receiving hole circle, and a gap exists between two adjacent waterstop steel plates;

[0011] A limiting assembly is fixed in the receiving hole ring and is used to support the waterstop steel plate from the rear side.

[0012] As a preferred technical solution of the present invention, a plurality of stress deformation openings distributed at equal intervals are processed on the waterstop steel plate.

[0013] As a preferred technical solution of the utility model, it also includes:

[0014] A flexible filler is filled between two adjacent waterstop steel plates.

[0015] As a preferred technical solution of the present invention, the flexible filler is cotton wool.

[0016] As a preferred technical solution of the present invention, the limit assembly includes:

[0017] A limiting platform is fixed in the receiving hole circle and is used to support the waterstop steel plate from the rear side.

[0018] As a preferred technical solution of the present invention, the limit assembly further includes:

[0019] An internally threaded pipe embedded part, wherein the internally threaded pipe embedded part is embedded in the receiving hole circle;

[0020] A locking bolt has a through hole on the limiting platform. After passing through the through hole, the locking bolt is screwed into the internal threaded pipe embedded part through a threaded screwing method.

[0021] As a preferred technical solution of the utility model, it also includes:

[0022] The positioning plate is a rectangular structure and is fixed to the top end of the internal threaded tube embedded part. A positioning groove for embedding the positioning plate is processed on the bottom surface of the limiting platform.

[0023] As a preferred technical solution of the utility model, it also includes:

[0024] A fixed plate is fixed to the bottom end of the internal threaded pipe embedded part.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] In the utility model, a plurality of parallel and spaced water-stop steel plates are arranged in the receiving hole circle, and the receiving hole circle is water-stopped by the fit between the water-stop steel plates and the top pipe joints. The water-stopping effect is good, and the water-stopping steel plates are not easy to age or deform, and have a long service life. In addition, the multi-channel water-stopping steel plate design does not affect the overall water-stopping effect even if the water-stopping steel plate on the front side is slightly deformed.

[0027] Other additional advantages and beneficial effects of the present invention will be partially given in the following description, and partially become obvious from the following description, or be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 It is a structural diagram of the utility model;

[0030] Figure 2 This is a schematic diagram of the cross-sectional structure of the receiving hole ring in the present invention;

[0031] Figure 3 For this utility model Figure 2 A in the figure shows the enlarged structural diagram;

[0032] Figure 4 This is a schematic diagram of the axonometric structure of the waterstop steel plate in the present utility model;

[0033] Figure 5 This is a schematic diagram of the exploded structure of the limit assembly in the present utility model.

[0034] In the figure: 1. Receiving hole ring; 2. Waterstop assembly; 21. Waterstop steel plate; 211. Stress deformation port; 22. Flexible filler; 3. Limit assembly; 31. Limit platform; 311. Through hole; 312. Positioning groove; 32. Internal threaded pipe embedded part; 321. Positioning plate; 322. Fixing plate; 33. Locking bolt. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] See also Figure 1-Figure 5The utility model provides the following technical solutions: a pipe jacking machine receiving hole door water-stopping device, including a receiving hole ring 1, and also including a water-stop component 2, and the water-stop component 2 includes: a water-stop steel plate 21 and a limit component 3.

[0037] Further, by Figure 1-Figure 3 As shown, in this embodiment, multiple waterstop steel plates 21 are fixed in parallel in the receiving hole ring 1, and there is a gap between two adjacent waterstop steel plates 21. The limiting component 3 is fixed in the receiving hole ring 1 to support the waterstop steel plate 21 from the rear side. After adopting the above scheme, when in use, multiple equally spaced waterstop steel plates 21 are pre-embedded and fixed in the receiving hole ring 1, and there is a certain gap between two adjacent waterstop steel plates 21. The limiting component 3 is fixed in the receiving hole ring 1 and supports the waterstop steel plate 21 from the rear side. After the jacking pipe joint is pushed in, the pipe joint fits tightly with the waterstop steel plate 21, which has the effect of stopping water in the receiving hole ring 1. The waterstop effect is good, and the waterstop steel plate 21 is not easy to age, not easy to deform, and has a long service life. In addition, the design of multiple waterstop steel plates 21 means that even if the front waterstop steel plate 21 is slightly deformed, it will not affect the overall waterstop effect.

[0038] It should be noted that, in the receiving hole ring 1 of the present invention, two spaced-apart water-stopping steel plates 21 are fixed therein. In actual use, other numbers of water-stopping steel plates 21 may be provided according to actual construction requirements.

[0039] Preferably, by Figure 1-Figure 4 As shown, in this embodiment, a plurality of equally spaced stress deformation openings 211 are processed on the waterstop steel plate 21. After adopting the above scheme, when in use, because the waterstop steel plate 21 is annular as a whole, and the jacking force of the jacking pipe section is usually very large, the design of the stress deformation openings 211 provides deformation space for the waterstop steel plate 21, avoiding large deformation or cracking of the waterstop steel plate 21, ensuring the waterstop effect, and also improving the safety and service life of the waterstop steel plate 21.

[0040] Preferably, by Figure 1-Figure 3 As shown, this embodiment also includes: a flexible filler 22, which is filled between two adjacent water-stop steel plates 21. After adopting the above scheme, when in use, the flexible filler 22 is flexible, which has an elastic isolation effect on the water-stop steel plate 21, and can further enhance the water-stop effect.

[0041] Optionally, by Figure 1-Figure 3 As shown, in this embodiment, the flexible filler 22 is cotton wool. After adopting the above scheme, the cotton wool is flexible and has an elastic isolation effect on the waterstop steel plate 21. At the same time, it also has certain thermal insulation performance, which reduces the impact of temperature changes on the waterstop steel plate 21 and improves the safety and service life of the waterstop steel plate 21, thereby ensuring the waterstop effect.

[0042] It should be noted that the above solution is only an exemplary introduction to the present invention and is not intended to limit the present invention. In actual construction, other materials may also be used as the flexible filler 22, such as rubber, polyurethane filler, etc.

[0043] Optionally, by Figure 1 and Figure 5 As shown, in this embodiment, the limiting assembly 3 includes: a limiting platform 31, which is fixed in the receiving hole ring 1 and is used to support the waterstop steel plate 21 from the rear side to ensure the stability of the waterstop steel plate 21.

[0044] Optionally, by Figure 1 and Figure 5 As shown, in this embodiment, the limiting component 3 also includes: an internal threaded tube embedded part 32 and a locking bolt 33. The internal threaded tube embedded part 32 is embedded in the receiving hole ring 1, and a through hole 311 is provided on the limiting platform 31. The locking bolt 33 passes through the through hole 311 and is screwed into the internal threaded tube embedded part 32 by threaded engagement. After adopting the above scheme, when in use, the internal threaded tube embedded part 32 is first embedded in the receiving hole ring 1, and then the locking bolt 33 is used to thread the internal threaded tube embedded part 32 to achieve the installation of the limiting platform 31, which is easy to install and has high stability.

[0045] Preferably, by Figure 1 and Figure 5 As shown, in this embodiment, it also includes: a positioning plate 321, the positioning plate 321 is a rectangular structure and is fixed to the top of the internal threaded tube embedded part 32, and a positioning groove 312 for the positioning plate 321 to be embedded is processed on the bottom surface of the limit platform 31. After adopting the above scheme, when in use, the positioning plate 321 is embedded in the positioning groove 312, which further improves the stability of the installation of the limit platform 31 and prevents the limit platform 31 from rotating.

[0046] Preferably, by Figure 1 and Figure 5 As shown, this embodiment also includes: a fixed plate 322, which is fixed to the bottom end of the internal threaded tube embedded part 32. After adopting the above scheme, when in use, the fixed plate 322 can stably engage with the internal foundation of the receiving hole ring 1, thereby improving the stability of the installation of the internal threaded tube embedded part 32, and then ensuring the stability of the installation of the limit platform 31.

[0047] Components not described in detail herein are prior art.

[0048] Working principle and use process of the utility model: When using the water-stopping device of the utility model, firstly, an internal threaded pipe embedded part 32 is embedded in the receiving hole ring 1, and a plurality of equally spaced water-stopping steel plates 21 are embedded and fixed in the receiving hole ring 1, and a certain gap is left between two adjacent water-stopping steel plates 21, and a flexible filler 22 is arranged in the gap;

[0049] The locking bolt 33 is screwed into the thread of the internal threaded pipe embedded part 32 to realize the installation of the limit platform 31. The limit platform 31 supports the water-stop steel plate 21 from the rear side to ensure the stability of the water-stop steel plate 21.

[0050] After the pipe joint is pushed in, the pipe joint fits tightly with the water-stop steel plate 21, which plays a role in water-stopping the receiving hole ring 1. The water-stopping effect is good, and the water-stopping steel plate 21 is not easy to age or deform, and has a long service life. In addition, the design of multiple water-stopping steel plates 21 means that even if the front water-stopping steel plate 21 is slightly deformed, it will not affect the overall water-stopping effect.

[0051] In addition, a plurality of equally spaced stress deformation openings 211 are processed on the waterstop steel plate 21, which provides deformation space for the waterstop steel plate 21, avoids large deformation or cracking of the waterstop steel plate 21, ensures the waterstop effect, and also improves the safety and service life of the waterstop steel plate 21.

[0052] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A water-stopping device for a receiving hole of a pipe jacking machine, comprising a receiving hole ring (1), characterized in that: It also includes a water-stop assembly (2), and the water-stop assembly (2) includes: Waterstop steel plates (21), wherein a plurality of the waterstop steel plates (21) are fixed in parallel in the receiving hole ring (1), and a gap exists between two adjacent waterstop steel plates (21); A limiting assembly (3), wherein the limiting assembly (3) is fixed in the receiving hole ring (1) and is used to support the water-stop steel plate (21) from the rear side.

2. A water-stopping device for a receiving tunnel of a pipe jacking machine according to claim 1, characterized in that: A plurality of stress deformation openings (211) distributed at equal intervals are processed on the waterstop steel plate (21).

3. The water-stopping device for a receiving tunnel of a pipe jacking machine according to claim 1, characterized in that: Also includes: A flexible filler (22) is filled between two adjacent water-stop steel plates (21).

4. A water-stopping device for a receiving tunnel of a pipe jacking machine according to claim 3, characterized in that: The flexible filler (22) is cotton wool.

5. The water-stopping device for a receiving tunnel of a pipe jacking machine according to claim 1, characterized in that: The limiting component (3) comprises: A limiting platform (31) is fixed in the receiving hole ring (1) and is used to support the water-stop steel plate (21) from the rear side.

6. The water-stopping device for a receiving tunnel of a pipe jacking machine according to claim 5, characterized in that: The limiting component (3) further comprises: An internal threaded pipe embedded part (32), wherein the internal threaded pipe embedded part (32) is embedded in the receiving hole ring (1); A locking bolt (33) is provided with a through hole (311) on the limiting platform (31). The locking bolt (33) passes through the through hole (311) and is screwed into the internal threaded tube embedded part (32) by screwing.

7. The water-stopping device for a receiving tunnel of a pipe jacking machine according to claim 6, characterized in that: Also includes: A positioning plate (321) is a rectangular structure and is fixed to the top end of the internal threaded tube embedded part (32). A positioning groove (312) for embedding the positioning plate (321) is processed on the bottom surface of the limiting platform (31).

8. The water-stopping device for a receiving tunnel of a pipe jacking machine according to claim 6, characterized in that: Also includes: A fixed plate (322) is fixed to the bottom end of the internal threaded pipe embedded part (32).

Images