A deformation joint device for corrugated steel plate pipeline structure

Abstract

The present invention relates to a deformation joint device for a corrugated steel plate pipeline structure in the field of buried pipelines, passages, bridges and culverts, comprising a first corrugated steel plate pipeline structure, a second corrugated steel plate pipeline structure, a water-expandable sealing tape, a guard plate, a sleeve and a deformable slide plate; the deformable slide plate is provided with a long hole, which is parallel to the axial direction of the corrugated steel plate pipeline structure; high-strength bolts pass through the corrugated steel plate pipeline structure, the sleeve, the long hole on the deformable slide plate and the through hole of the guard plate in sequence and are fixed with nuts; the bottom end of the sleeve is connected to the outer circumferential surface of the corrugated steel plate pipeline structure, the top end of the sleeve is connected to the lower surface of the guard plate, and the height of the sleeve is greater than the thickness of the deformable slide plate, so that the deformable slide plate is easy to slide. The structure of the present invention can meet the needs of horizontal and vertical deformation and has a strong anti-leakage function, and has the characteristics of simple structure, low cost and easy installation.

Description

Technical Field

[0001] The invention relates to a deformation joint device for corrugated steel plate pipeline structures in the fields of buried corrugated steel pipelines, channels, bridges, culverts and subway projects, and is used to prevent uneven foundation settlement and expansion and settlement of corrugated steel structures caused by temperature changes. Background Art

[0002] In the 1780s, Britain was the first to use bellows. In the late 19th century, the United States also took the lead in studying the feasibility of corrugated channels and culverts, and first applied them in culvert projects. In the early 20th century, the corrugated plate culvert was first used for farmland irrigation near Edinburgh, Scotland, UK. In 1923, the American Railway Engineering Association tested the corrugated plate channel of the Illinois Central Railway. In the 1920s, Canada first used bellows in coal mine construction. In the early 1930s, Australia built a corrugated tube (plate) automobile channel with a span of 8 meters for the first time. In the 1990s, the "Japanese Expressway Design Code" compiled the technical specifications for the design of bellows. The widespread use of bellows in countries around the world proves that such structures not only have a very wide range of applicability, but also their lifespan has far exceeded their design lifespan.

[0003] Whether in the United States or Canada and many other countries, corrugated pipe culverts are widely used in various highway projects and even expressway projects. There are endless construction design manuals, which have accumulated more mature construction design methods and experience of corrugated pipes. Most of the design methods are still relatively conservative. According to current foreign research and applications, there are not many studies on the expansion and deformation of steel corrugated pipe culverts.

[0004] After the founding of the People's Republic of my country, corrugated pipes were also used. In the construction of the Qinghai-Tibet Highway in the 1950s, corrugated pipe holes were used in the repair process. They were still in normal use when they were excavated in the 1970s. In 1965, the steel corrugated pipe water tunnel installed by the United States during World War II was dug out on the Burma Road. In the fall of 1998, a corrugated pipe culvert with a diameter of 1 meter was dug out in Shanghai. It has a history of nearly 50 years. According to investigations, it was a military shortcut used at the time. Later, due to various economic and political reasons, the corrugated pipe culvert was not able to be designed and used more. After 1978, the national economy began to recover. Shenzhen, a special economic zone, and Shanxi, a coal-producing area, imported corrugated pipes and applied them to a large number of culvert projects. It was not until the late 1990s that my country officially applied them in highway projects.

[0005] During the three years from 1996 to 1999, during the Qinghai-Tibet Highway project, CCCC First Highway Engineering Design and Research Institute successfully solved the major problem of culvert damage or even destruction caused by frost heave and thaw settlement in frozen soil areas by using three metal corrugated pipe culvert projects.

[0006] In the late 1990s, steel corrugated plate channels were used in Shanghai Pudong International Airport and Metro Line 4. Their main features are arched, arc-shaped or elliptical, and the plate thickness ranges from 2.5 mm to 12 mm. Such corrugated plate channels can be used in culverts and highway passages, greatly reducing the occurrence of uneven settlement of structures caused by soft foundations.

[0007] The Daxinganling Jiamo Highway had problems with the stability of culvert foundations due to permafrost and mixed ground in a few areas. Later, corrugated pipe culverts were used to adapt to the deformation and settlement caused by permafrost degradation. More than 100 corrugated pipe culverts with galvanized sheet thickness of 1.0-2.5mm, wave distance of 68mm, aperture of 1.0m, and wave height of 13mm were built. After more than a year of normal operation, a comprehensive and systematic investigation of the corrugated pipe culverts was conducted. It was found that except for a few parts with poor waterproofing treatment, unsatisfactory foundation treatment, uneven settlement deformation due to improper construction, and water accumulation or seepage in the culvert itself, the vast majority of corrugated pipe culverts are in good condition, and no damage caused by structural reasons has been found so far.

[0008] The Qingshuihe section of Jiangluling on Qingkang Highway is a typical degraded permafrost distribution area, which makes the permafrost temperature in this section relatively high, and the permafrost area is unevenly distributed, with permafrost growing in the thaw area and interlaced with each other, resulting in many culverts in this section having misaligned tires, cracked culvert platforms, damaged paving, overturned wing walls, cracks in the tunnel body, etc. The reasons are mostly due to shallow foundation burial or repeated thawing and frost heave. In order to prevent the above phenomena and avoid premature damage to the culvert, my country successfully tried out a 150 cm diameter steel zinc corrugated pipe in 2000. This research result was promoted to Xining Jiuzhi Highway, Erzhihala Mountain to Shehai Highway, Huashixia to Dari Highway, etc. between 2001 and 2002. As of 2002, these highways used 418 corrugated pipe culverts with a total length of 8,231.19 meters. Their diameters ranged from 150 cm to 250 cm. The wall thickness of the corrugated pipes increased from 3 mm on the plateau to 5 mm, and the fill height of the cave top increased significantly from the original 100 cm to about 1,700 cm.

[0009] Corrugated steel plate pipeline structure refers to the use of structural backfill materials to compact the surrounding of the pipeline to ensure that the soil and the pipeline structure interact and jointly bear the load of the bridge span structure (such as: circular tube culvert, arch bridge, subway, tunnel, channel, pipeline, etc.). Corrugated steel plate refers to a corrugated plate material made of hot-rolled steel plate, according to the specified size, through corrugated rolling and cold bending. At present, the research on the design and construction of corrugated steel structures at home and abroad is mainly aimed at the following contents:

[0010] (1) Study on compressive stress of corrugated steel structure under ultimate bearing capacity state;

[0011] (2) Study on the bending and compressive stress of corrugated steel structures under plastic hinge conditions during construction and operation;

[0012] (3) Research on strength requirements of bolts for longitudinal bolt connections of corrugated steel structures;

[0013] (4) Research on the flexibility requirements of corrugated steel structures during transportation.

[0014] (5) Study on the deformation of corrugated steel pipes due to uneven foundation settlement.

[0015] On December 16, 2019, the "Technical Specification for Highway Corrugated Steel Culverts" T / CECS:D66-01-2019, edited by China Communications Construction Second Highway Survey and Design Institute Co., Ltd. and other units and issued by the China Engineering Construction Standardization Association, is currently the most authoritative technical specification for the design and construction of corrugated steel structures in China, but the specification does not give specific provisions for the expansion and settlement of the corrugated steel structure itself.

[0016] The "Corrugated Steel Embedded Structure Design and Construction Manual", which is currently written by authoritative departments in China and represents the highest level of corrugated steel structure design and construction manual in China, does not give specific provisions on the expansion and settlement of the corrugated steel structure itself. It can be seen that the research on the expansion and settlement of the corrugated steel structure itself under the influence of temperature and external forces is relatively difficult and requires continuous exploration and research.

[0017] Several connection devices currently in use in the domestic market have poor waterproofing effects, complex structures, and high investments. Summary of the invention

[0018] The technical problem solved by the present invention is to provide a device which can meet the requirements of horizontal and vertical deformation and has a strong anti-leakage function, and has the characteristics of simple structure, low cost, convenient on-site installation, etc.

[0019] The technical solution adopted by the present invention is:

[0020] A deformation joint device for a corrugated steel plate pipeline structure, comprising a first corrugated steel plate pipeline structure 9, a second corrugated steel plate pipeline structure 10, and a sealing tape 5 for sealing the interface between the first corrugated steel plate pipeline structure 9 and the second corrugated steel plate pipeline structure 10, wherein the adjacent left side of the interface is the first wave crest of the first corrugated steel plate pipeline structure 9, and the adjacent right side of the interface is the first wave crest of the second corrugated steel plate pipeline structure 10, characterized in that it also includes a guard plate 3 provided with a through hole, a sleeve 4, and a deformation slide plate 1 provided on the outer circumferential surface of the first corrugated steel plate pipeline structure 9 and the second corrugated steel plate pipeline structure 10 ; Long holes are provided at the position of the deformed slide plate 1 corresponding to the first wave crest of the first corrugated steel plate pipe structure 9 and at the position of the deformed slide plate 1 corresponding to the first wave crest of the second corrugated steel plate pipe structure 10, and the long holes are parallel to the axial direction of the corrugated steel plate pipe structure; the high-strength bolts 6 are successively passed through the corrugated steel plate pipe structure, the sleeve 4, the long holes on the deformed slide plate 1 and the through holes of the guard plate 3 and are fixed with the nuts 7; the bottom end of the sleeve 4 is connected to the outer circumferential surface of the corrugated steel plate pipe structure, the top end of the sleeve 4 is connected to the lower surface of the guard plate 3, and the height of the sleeve 4 is greater than the thickness of the deformed slide plate 1, so that the deformed slide plate 1 is easy to slide.

[0021] As a further improvement of the present invention, a first trough of the first corrugated steel plate pipe structure 9 is arranged between the first wave peak and the interface of the first corrugated steel plate pipe structure 9, and a first trough of the second corrugated steel plate pipe structure 10 is arranged between the first wave peak and the interface of the second corrugated steel plate pipe structure 10, one end of the sealing tape 5 is fixed at the first trough position of the first corrugated steel plate pipe structure 9, and the other end of the sealing tape 5 is fixed at the first trough position of the second corrugated steel plate pipe structure 10.

[0022] As a further improvement of the present invention, one end of the sealing tape 5 is fixed at the first wave peak position of the first corrugated steel plate pipe structure 9 by a high-strength bolt 6, and the other end of the sealing tape 5 is fixed at the first wave peak position of the second corrugated steel plate pipe structure 10 by a high-strength bolt 6.

[0023] As a further improvement of the present invention, an inverted U-shaped protrusion or a U-shaped groove is provided in the middle of the deformable slide plate 1 .

[0024] As a further improvement of the present invention, the sealing tape 5 is a water-swellable sealing tape composed of an elastic rubber sealing tape 11 and a water-swellable layer 12; an inverted U-shaped protrusion is provided in the middle of the water-swellable sealing tape, and both sides of the water-swellable sealing tape are designed to be circular, and the diameter of the circle is greater than the thickest thickness of the tape.

[0025] As a further improvement of the present invention, the deformable slide plate is a cylindrical structure surrounding the outside of the corrugated steel plate pipeline structure, and the long holes are evenly distributed on the outer circumference of the deformable slide plate.

[0026] As a further improvement of the present invention, the sealing tape 5 is fixed to the inner wall of the corrugated steel plate pipeline structure by high-strength bolts 6 .

[0027] As a further improvement of the present invention, the high-strength bolt 6 passes through the sealing tape 5, the corrugated steel plate pipe structure, and the through hole of the convex-concave gasket 8 in sequence and is fixed to the nut 7; the bottom surface of the convex-concave gasket 8 matches the shape of the contact surface of the corrugated steel plate pipe structure.

[0028] As a further improvement of the present invention, an expansion joint is left at the interface between the first corrugated steel plate pipe structure 9 and the second corrugated steel plate pipe structure 10, and the inverted U-shaped protrusion in the middle of the water-swellable sealing tape matches the expansion joint.

[0029] As a further improvement of the present invention, the sleeve 4 has a circular shape and its outer diameter is smaller than the width of the long hole, or the sleeve 4 has a square shape and its side length is smaller than the width of the long hole.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. When the foundation settles unevenly, when the temperature difference is large, under the action of vehicle load and fill gravity, the corrugated steel plate pipe structure will produce expansion and contraction and settlement deformation; if the overall bellows structure is not synchronized with the above expansion and contraction deformation or settlement deformation, internal deformation stress will inevitably be generated. If the internal deformation stress exceeds the maximum allowable value of the overall structure, the overall bellows structure will be destroyed; by using the present invention, the deformation stress caused by expansion and contraction or settlement deformation can be eliminated, thereby avoiding the destruction of the overall structure.

[0032] 2. The present invention is used for corrugated pipes, bridges and culverts, which can meet the requirements of structural expansion and contraction and settlement under large temperature differences or uneven foundation settlement and vehicle loads, thereby avoiding overall structural damage and ensuring project quality.

[0033] 3. The present invention adopts a soft connection sealing form of water-swellable sealing tape in the design. In the case of deformation, the water-swellable sealing tape expands after coming into contact with water, has good sealing performance and does not leak, thereby avoiding damage to the foundation structure and extending the life of the entire project.

[0034] 4. The present invention has the characteristics of simple structure, few components, easy processing, low cost, etc., which is easily accepted by users and is conducive to large-scale application and promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 It is a partial enlarged schematic diagram of the interface of the present invention;

[0037] Figure 3 is a schematic diagram of the circumferential development of the deformed skateboard;

[0038] Figure 4 1. is a schematic diagram of the circumferential development of the water-swellable sealing tape pressure plate;

[0039] Figure 5 It is a top view of the guard plate;

[0040] Figure 6 is a top view of the sleeve in the embodiment;

[0041] Figure 7 1. It is a schematic diagram of the structure of a water-swellable sealing tape;

[0042] Among them, 1. deformable slide plate; 2. water-swelling sealing tape pressure plate; 3. guard plate; 4. sleeve; 5. water-swelling sealing tape; 6. high-strength bolts; 7. nuts; 8. convex and concave gaskets; 9. first corrugated steel plate pipeline structure; 10. second corrugated steel plate pipeline structure; 11. rubber sealing tape; 12 water-swelling layer. DETAILED DESCRIPTION

[0043] Below, combined with the attached Figure 1-7 The present invention is further described with reference to the accompanying drawings and specific embodiments.

[0044] like Figure 1 and Figure 2As shown, a deformation joint device for a corrugated steel plate pipeline structure includes a first corrugated steel plate pipeline structure 9, a second corrugated steel plate pipeline structure 10, a sealing tape 5 for sealing the interface between the first corrugated steel plate pipeline structure 9 and the second corrugated steel plate pipeline structure 10, a guard plate 3 provided with through holes, a sleeve 4, and a deformation slide plate 1 arranged on the outer circumferential surface of the first corrugated steel plate pipeline structure 9 and the second corrugated steel plate pipeline structure 10; the adjacent left side of the interface is the first wave crest of the first corrugated steel plate pipeline structure 9, and the adjacent right side of the interface is the first wave crest of the second corrugated steel plate pipeline structure 10, and also includes Long holes are provided at the positions of the deformed slide plate 1 corresponding to the first wave crest of the first corrugated steel plate pipe structure 9 and at the positions of the deformed slide plate 1 corresponding to the first wave crest of the second corrugated steel plate pipe structure 10, and the long holes are parallel to the axial direction of the corrugated steel plate pipe structure; the high-strength bolts 6 are fixed with the nuts 7 after passing through the corrugated steel plate pipe structure, the sleeve 4, the long holes on the deformed slide plate 1 and the through holes of the guard plate 3 in sequence; the bottom end of the sleeve 4 is connected to the outer circumferential surface of the corrugated steel plate pipe structure, the top end of the sleeve 4 is connected to the lower surface of the guard plate 3, and the height of the sleeve 4 is greater than the thickness of the deformed slide plate 1, so that the deformed slide plate 1 is easy to slide. For the sake of simplicity, the "corrugated steel plate pipe structure" in the document refers to the first corrugated steel plate pipe structure 9 and the second corrugated steel plate pipe structure 10.

[0045] In order to achieve a tighter connection, a convex-concave gasket 8 is also installed on the screw between the head of the high-strength bolt 6 and the corrugated steel plate pipe structure, and the top surface of the convex-concave gasket 8 matches the shape of the contact surface of the corrugated steel plate pipe structure. The distance between the two high-strength bolts 6 is L. The first corrugated steel plate pipe structure 9 and the second corrugated steel plate pipe structure 10 have an expansion joint n (deformation joint) at the interface, which can meet the maximum value required by the first corrugated steel plate pipe structure 9 and the second corrugated steel plate pipe structure 10 when thermally expanded.

[0046] In Example 1, the first trough of the first corrugated steel plate pipe structure 9 is arranged between the first wave crest and the interface of the first corrugated steel plate pipe structure 9, and the first trough of the second corrugated steel plate pipe structure 10 is arranged between the first wave crest and the interface of the second corrugated steel plate pipe structure 10. One end of the sealing tape 5 is fixed at the first trough position of the first corrugated steel plate pipe structure 9, and the other end of the sealing tape 5 is fixed at the first trough position of the second corrugated steel plate pipe structure 10. The sealing tape 5 is fixed to the inner pipe wall of the corrugated steel plate pipe structure by a high-strength bolt 6, specifically: the high-strength bolt 6 passes through the sealing tape 5, the corrugated steel plate pipe structure, and the through hole of the convex-concave gasket 8 in sequence and is fixed to the nut 7; the bottom surface of the convex-concave gasket 8 matches the shape of the contact surface of the corrugated steel plate pipe structure. For better sealing, a water-expandable sealing tape pressing plate 2 is also installed on the screw between the head of the high-strength bolt 6 and the sealing tape 5. Since the corrugated steel plate pipe structure is circular, the water-expandable sealing tape pressing plate 2 is a long strip structure surrounding the inner side of the corrugated steel plate pipe structure. Figure 4 shown.

[0047] In Example 2, one end of the sealing tape 5 is fixed to the first wave crest position of the first corrugated steel plate pipe structure 9 by a high-strength bolt 6, and the other end of the sealing tape 5 is fixed to the first wave crest position of the second corrugated steel plate pipe structure 10 by a high-strength bolt 6. For better sealing, a water-swellable sealing tape pressing plate 2 is also installed on the screw between the head of the high-strength bolt 6 and the sealing tape 5.

[0048] like Figure 3 As shown, the middle part of the deformable slide plate 1 is an inverted U-shaped protrusion, and can also be set as a U-shaped groove in specific applications. Because the corrugated steel plate pipeline structure is circular, the deformable slide plate is a cylindrical structure surrounding the outside of the corrugated steel plate pipeline structure, and the long holes are evenly distributed on the outer circumference of the deformable slide plate.

[0049] The function of the deformable slide plate 1 is: when the first corrugated steel plate pipe structure 9 and the second corrugated steel plate pipe structure 10 are not deformed, the deformable slide plate 1 can play a connecting role, which can ensure that the complete overall structure is stressed. The middle part of the deformable slide plate 1 has a corrugated shape (inverted U-shaped protrusion or U-shaped groove), and long holes are arranged on both sides. Therefore, when the first corrugated steel plate pipe structure 9 and the second corrugated steel plate pipe structure 10 sink, they can be deformed and telescopically displaced accordingly, thereby avoiding damage to the overall structure, ensuring the integrity of the corrugated pipe structure, and playing a role in the overall structure being stressed.

[0050] like Figure 5As shown, the guard plate 3 is provided with through holes for the high-strength bolts 6 to pass through. The function of the guard plate 3 is to cover the long hole (slide groove) on the deformable slide plate 1 through the guard plate 3 to prevent other debris from entering the long hole, and also to connect and fix the deformable slide plate 1 and the first corrugated steel plate pipeline structure 9 or the second corrugated steel plate pipeline structure 10.

[0051] like Figure 6 As shown, a through hole is provided on the sleeve 4 for the high-strength bolt 6 to pass through. The sleeve 4 is circular in shape and its outer diameter is smaller than the width of the long hole, or the sleeve 4 is square in shape and its side length is smaller than the width of the long hole. The height of the sleeve 4 is greater than the thickness of the deformed slide plate 1, and its function is to make the gap between the guard plate 3 and the corrugated steel plate pipeline structure greater than the thickness of the deformed slide plate 1, so as to facilitate the lateral displacement of the deformed slide plate 1 when the first corrugated steel plate pipeline structure 9 and the second corrugated steel plate pipeline structure 10 settle.

[0052] like Figure 7 As shown, the sealing tape 5 is an elastic water-swelling sealing tape, including a rubber sealing tape 11 and a water-swelling layer 12; an inverted U-shaped protrusion is provided in the middle of the water-swelling sealing tape, and the two sides of the water-swelling sealing tape are designed to be circular, and the diameter of the circle is greater than the thickest thickness of the tape. An expansion joint is left at the interface between the first corrugated steel plate pipeline structure 9 and the second corrugated steel plate pipeline structure 10, and the inverted U-shaped protrusion in the middle of the water-swelling sealing tape matches the expansion joint.

[0053] The function of the water-swellable sealing tape is as follows: the water-swellable sealing tape is the soft connection part of the first corrugated steel plate pipe structure 9 and the second corrugated steel plate pipe structure 10, which can effectively prevent water leakage at the connection of the first corrugated steel plate pipe structure 9 and the second corrugated steel plate pipe structure 10. The water-swellable sealing tape will swell when it comes into contact with water, and its volume will become larger, which can more effectively prevent leakage; the middle part of the water-swellable sealing tape is provided with an inverted U-shaped protrusion, and when the first corrugated steel plate pipe structure 9 and the second corrugated steel plate pipe structure 10 are stretched, settled and deformed, it also stretches, settles and deforms accordingly, ensuring the integrity of the corrugated steel structure and preventing leakage; the two sides of the water-swellable sealing tape are designed to be circular, and the circular diameter is greater than the thickest thickness of the tape. According to the design of the structure of the device, it is more effective to prevent the first corrugated steel plate pipe structure 9 and the second corrugated steel plate pipe structure 10 from being pulled out when they are stretched, settled and deformed, and it also plays a role in preventing leakage.

[0054] The above is only an explanation of the principle of the present invention. Without departing from the technical principle of the patent of the present invention, several improvements and modifications can be made. These improvements and modifications should also be regarded as the protection scope of the patent of the present invention.

Claims

1. A deformation joint device for a corrugated steel plate pipeline structure, comprising a first corrugated steel plate pipeline structure (9), a second corrugated steel plate pipeline structure (10), and a sealing tape (5) for sealing the interface between the first corrugated steel plate pipeline structure (9) and the second corrugated steel plate pipeline structure (10), wherein the adjacent left side of the interface is the first wave crest of the first corrugated steel plate pipeline structure (9), and the adjacent right side of the interface is the first wave crest of the second corrugated steel plate pipeline structure (10), characterized in that : It also includes a guard plate (3) provided with a through hole, a sleeve (4), and a deformable slide plate (1) provided on the outer circumferential surface of the first corrugated steel plate pipe structure (9) and the second corrugated steel plate pipe structure (10); a long hole is provided at the position of the deformable slide plate (1) corresponding to the first wave crest of the first corrugated steel plate pipe structure (9) and the position of the deformable slide plate (1) corresponding to the first wave crest of the second corrugated steel plate pipe structure (10), and the long hole is parallel to the axial direction of the corrugated steel plate pipe structure; a high-strength bolt (6) passes through the corrugated steel plate pipe structure, the sleeve (4), the long hole on the deformable slide plate (1) and the through hole of the guard plate (3) in sequence and is fixed with a nut (7); the bottom end of the sleeve (4) is connected to the outer circumferential surface of the corrugated steel plate pipe structure, the top end of the sleeve (4) is connected to the lower surface of the guard plate (3), and the height of the sleeve (4) is greater than the thickness of the deformable slide plate (1), so that the deformable slide plate (1) is easy to slide; A first trough of the first corrugated steel plate pipe structure (9) is provided between a first wave crest and an interface of the first corrugated steel plate pipe structure (9), a first trough of the second corrugated steel plate pipe structure (10) is provided between a first wave crest and an interface of the second corrugated steel plate pipe structure (10), one end of the sealing tape (5) is fixed at the first trough position of the first corrugated steel plate pipe structure (9), and the other end of the sealing tape (5) is fixed at the first trough position of the second corrugated steel plate pipe structure (10); One end of the sealing tape (5) is fixed to the first wave crest position of the first corrugated steel plate pipe structure (9) by means of a high-strength bolt (6), and the other end of the sealing tape (5) is fixed to the first wave crest position of the second corrugated steel plate pipe structure (10) by means of a high-strength bolt (6).

2. The expansion joint device for a corrugated steel plate pipeline structure according to claim 1, characterized in that The middle portion of the deformable sliding plate (1) is in the shape of an inverted U-shaped protrusion or a U-shaped groove.

3. The deformation joint device for a corrugated steel plate pipeline structure according to claim 2, characterized in that The sealing tape (5) is a water-swellable sealing tape composed of an elastic rubber sealing tape (11) and a water-swellable layer (12); an inverted U-shaped protrusion is provided in the middle of the water-swellable sealing tape, and both sides of the water-swellable sealing tape are designed to be circular, and the diameter of the circle is greater than the thickest thickness of the tape.

4. The expansion joint device for a corrugated steel plate pipeline structure according to claim 2, characterized in that The deformable slide plate is a cylindrical structure surrounding the outside of the corrugated steel plate pipeline structure, and the long holes are evenly distributed on the outer circumference of the deformable slide plate.

5. The expansion joint device for a corrugated steel plate pipeline structure according to claim 1, characterized in that The sealing tape (5) is fixed to the inner wall of the corrugated steel plate pipeline structure by high-strength bolts (6).

6. The deformation joint device for a corrugated steel plate pipeline structure according to claim 5, characterized in that : The high-strength bolt (6) passes through the sealing tape (5), the corrugated steel plate pipe structure, and the through hole of the convex-concave gasket (8) in sequence and is fixed with the nut (7); the bottom surface of the convex-concave gasket (8) matches the shape of the contact surface of the corrugated steel plate pipe structure.

7. The deformation joint device for a corrugated steel plate pipeline structure according to claim 3, characterized in that An expansion joint is left at the interface between the first corrugated steel plate pipe structure (9) and the second corrugated steel plate pipe structure (10), and an inverted U-shaped protrusion in the middle of the water-expandable sealing tape matches the expansion joint.

8. The expansion joint device for a corrugated steel plate pipeline structure according to claim 1, characterized in that : The sleeve (4) has a circular shape and its outer diameter is smaller than the width of the long hole, or the sleeve (4) has a square shape and its side length is smaller than the width of the long hole.

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