A pipeline seepage prevention deformation control support device based on soft soil foundation

Abstract

This invention relates to the field of pipeline seepage prevention technology, specifically to a pipeline seepage prevention deformation control support device based on soft soil foundation. The device is installed at the connection point of two adjacent pipelines. The device includes a bearing ring, a support member, and at least n sets of limiting members. Bearing rings are connected to the outer walls of both pipelines near the connection point. Each set of limiting members includes two bearing plates, arranged in an inverted V-shape with alternating front-to-back arrangements. Each bearing plate has a recessed groove containing a friction plate that slides back and forth. When the lower left side of the n bearing plates on the left side of the n sets of limiting members is far from the lower right side of the n bearing plates on the right side, the two friction plates in the same set make relative pressure contact. The support member supports the limiting members. This invention solves the problem that when a support device supports a pipeline, it easily shifts downwards with the settlement of the soft soil foundation, leading to deformation and leakage at the weak connection point of the supported pipeline.

Description

Technical Field

[0001] This invention relates to the field of pipeline seepage prevention technology, specifically to a pipeline seepage prevention deformation control support device based on soft soil foundation. Background Technology

[0002] Pipelines, serving as the "blood vessels" of modern industry and daily life, are an indispensable key infrastructure for national economic and social development. To meet the demands of long-distance transportation, multiple pipeline sections are typically joined together to form a complete system. However, pipelines laid directly on the ground are susceptible to corrosion, and long-distance transportation requires control of displacement and stress distribution. Therefore, specialized support devices are crucial for ensuring the stable operation of pipeline systems.

[0003] Traditionally, rigid connections are used between pipes. To accommodate deformation at pipe joints, flexible socket connections with a certain degree of deformation are often used instead of rigid connections. However, in soft soil foundations, due to the low bearing capacity and susceptibility to settlement, the pipe support devices laid on them will also sink. When the support devices sink, it can easily lead to sealing failure at the joint, interface damage, and even media leakage. The reasons for this problem are discussed in the article "Experimental and Numerical Simulation Study on Interface Damage of Socket-Type Ductile Iron Water Supply Pipelines under Vertical Load" published in the *Disaster Prevention Engineering Report*. The article "Research" points out that under vertical load, the pipe joint will first undergo certain vertical deformation and bending angle. If the joint sealing ring cannot meet the requirements of vertical deformation and bending angle, pipe joint leakage will occur. As the vertical deformation continues to increase, the pipe joint leakage will turn into a leak. The authorization announcement number CN120576284B "A Support Device for Water Conservancy Pipeline Installation" also clearly points out that when the soft soil foundation settles, the sinking of the support device will pull the pipe displacement, thereby causing deformation and leakage risk at the pipe connection.

[0004] To address the challenge of controlling the deformation of pipe connections caused by the settlement of support devices with soft soil foundations, it is urgent to design a support device that can effectively reduce the deformation of pipe connections when the support device itself inevitably moves downwards, thereby ensuring the overall safety of the pipeline system. Summary of the Invention

[0005] To address the technical problem that when supporting pipes, the supporting device easily shifts downward with the settlement of soft soil foundation, causing deformation and leakage at the weak joints of the supported pipe, this invention provides a pipe seepage prevention deformation control supporting device based on soft soil foundation. This device can reduce the deformation at pipe joints, prevent leakage, and simultaneously restore deformed pipe joints.

[0006] To solve the above problems, the technical solution of the present invention is:

[0007] A pipeline seepage prevention deformation control support device based on soft soil foundation is installed at the connection of two adjacent pipelines, with the two pipelines flexibly connected by a socket joint. The device includes a bearing ring, a support member, and at least n sets of limiting members, where n is an integer equal to 2. The bearing rings are detachably connected to the outer walls of the two pipelines near the connection point. The n sets of limiting members are arranged sequentially. Each set of limiting members includes two bearing plates, which are arranged in an inverted V-shape. The tops of the two bearing plates are fixed to the bottoms of the two bearing rings. Each bearing plate has a groove on its vertical side, and a friction plate that slides back and forth is provided in the groove. The two bearing plates are arranged opposite each other with their lower ends close together, and the lower parts of the friction plates on the two bearing plates are in frictional contact. When the lower ends of the left sides of the n bearing plates on the left side of the n sets of limiting members are far apart from the lower ends of the right sides of the n bearing plates on the right side, the two friction plates on the same set are in relative pressing contact. The support member is used to support the limiting members.

[0008] Furthermore, the bearing ring includes an upper block and a lower block that are symmetrically arranged. One side of the upper block and the lower block is recessed with an arc-shaped groove, and an elastic gasket is provided in the arc-shaped groove. After the upper block and the lower block are assembled, they are fitted onto the outside of the pipe. Multiple limiting bolts for fixing the upper block and the lower block are provided on the upper block and the lower block. A bubble level is provided on the vertical side of each bearing ring.

[0009] Furthermore, each of the friction plates has a dovetail groove recessed on the side away from the opening of the groove. The bottom surface of the dovetail groove is an arc-shaped surface that protrudes away from the opening of the groove. A steel strand is provided in the dovetail groove. The diameter of the steel strand is larger than the opening width of the dovetail groove. One end of the steel strand is fixedly connected to the side of the groove, and the other end passes through the dovetail groove and then movably penetrates the bearing plate.

[0010] Furthermore, the steel strands extending from the lower ends of the n bearing plates on the left are all fixedly connected to a round rod one, which contacts the right side of the n bearing plates on the right. The steel strands extending from the lower ends of the n bearing plates on the right are all fixedly connected to a round rod two, which contacts the left side of the n bearing plates on the left.

[0011] Furthermore, each of the steel strands has a connecting screw fixed at one end extending from the bearing plate. The connecting screws on the n steel strands on the left side are movably inserted through the first round rod and then limited by the first locking nut. The connecting screws on the n steel strands on the right side are movably inserted through the second round rod and then limited by the second locking nut.

[0012] Furthermore, each friction plate has an elastic element on its side away from the opening of the groove. The elastic element is misaligned with the dovetail groove on the friction plate. The elastic element includes a connecting rod and an elastic cylinder. The connecting rod is fixedly connected to the friction plate. A circular countersunk hole corresponding to the free end of the connecting rod is recessed on the outer side of the bearing plate. The free end of the connecting rod moves through the bearing plate and extends into the circular countersunk hole. A baffle is fixed to the end of the free end of the connecting rod. An elastic cylinder is provided in the circular countersunk hole. The elastic cylinder is movably sleeved on the outside of the connecting rod. One end of the elastic cylinder is connected to the inner bottom of the circular countersunk hole, and the other end is connected to the baffle.

[0013] Furthermore, when the elastic cylinder on the friction plate is in its natural state, the side of the friction plate away from the dovetail groove is flush with the opening of the groove, and the steel strand inside the groove is in contact with the arc-shaped surface of the dovetail groove.

[0014] Furthermore, the support member includes a box and a support plate. The box is symmetrically provided with support plates on the left and right sides. The top surface of the left support plate is a slope that slopes downward from the right end. The top surface of the left support plate is in contact with the upper part of the left side surface of the n left support plates. The top surface of the right support plate is in contact with the upper part of the right side surface of the n right support plates. The two support plates are driven by a driving member and move relative to each other or in opposite directions.

[0015] Furthermore, the driving component includes a driving screw, the left and right sides of the peripheral wall of the driving screw are respectively provided with thread one and thread two with opposite directions of thread, the left and right sides of the driving screw are respectively threaded to two support plates, the left end of the driving screw movably passes through the left side plate of the box and connects to the rotating plate, and the right end is rotatably connected to the right side plate of the box.

[0016] Furthermore, the front and rear sides of the support plate slide in contact with the front and rear inner walls of the box body, respectively.

[0017] The beneficial effects of the present invention through the above technical solution are as follows:

[0018] 1. In this invention, the tendency of the support member to settle and the pipeline to separate is converted into the traction force of the steel strand, which in turn pushes the friction plates to press against each other and generate friction. In the early stage of foundation settlement, a small bending deformation is allowed at the pipeline connection, thereby releasing some stress and avoiding the instantaneous stress concentration failure common in rigid structures. As the two friction plates on the same group continue to press against each other, the friction plates that press against each other form a rigid limit, forcibly stopping the further development of deformation.

[0019] 2. By observing the bubble level, once the pipe is found to be tilted, simply rotating the drive screw will drive the support plate to press against the bearing plate, thereby raising the pipe back to its initial horizontal state and enabling rapid compensation and correction of the pipe support.

[0020] 3. This invention ensures that the pipe connection remains under control throughout the entire settlement and compensation process, thereby preventing excessive deformation of the pipe connection and further avoiding the risk of interface sealing failure and media leakage at the pipe connection. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 (The enclosure is concealed);

[0023] Figure 3 This is a schematic diagram of the structure of multiple limiting members connected according to the present invention. Figure 1 (Main view);

[0024] Figure 4 This is a schematic diagram of the structure of multiple limiting members connected according to the present invention. Figure 2 (Rear view);

[0025] Figure 5 This is a schematic diagram of the friction plate of the present invention;

[0026] Figure 6 This is a schematic diagram of the connection between the bearing plate and the steel strand of the present invention;

[0027] Figure 7 This is an exploded view of the same set of two limiting members of the present invention;

[0028] Figure 8 This is a top sectional view of the limiting member of the present invention;

[0029] Figure 9 yes Figure 8 Sectional view at point AA;

[0030] Figure 10 This is a cross-sectional front view of the support member of the present invention.

[0031] The attached diagram is labeled as follows: 1. Pipe, 2. Bearing plate, 3. Friction plate, 5. Groove, 6. Upper block, 7. Lower block, 8. Arc groove, 9. Elastic gasket, 10. Limiting bolt, 11. Limiting nut, 12. Dovetail groove, 13. Steel strand, 14. Round rod one, 15. Round rod two, 16. Connecting screw, 17. Locking nut one, 18. Locking nut two, 19. Bubble level, 20. Connecting rod, 21. Elastic cylinder, 22. Circular countersunk hole, 23. Baffle, 24. Box, 25. Support plate, 26. Drive screw, 28. Thread one, 30. Thread two, 31. Rotating plate, 32. Bearing. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0033] like Figures 1-10 As shown, a pipeline seepage prevention deformation control support device based on soft soil foundation is installed at the connection of two adjacent pipelines 1, with a flexible socket connection between the two pipelines 1. The device includes a bearing ring, a support member, and at least n sets of limiting members, where n is an integer equal to 2. Bearing rings are detachably connected to the outer walls of both pipelines 1 near the connection point, and the two bearing rings are symmetrical. The n sets of limiting members are arranged sequentially. Each set of limiting members includes two bearing plates 2, which are arranged in an inverted V-shape with alternating front and back arrangements. The tops of the two bearing plates 2 are fixed to the bottoms of the two bearing rings. The bearing plates 2 are vertically arranged plates with concave sides. The device has a recessed groove 5, which is a rectangular groove. A friction plate 3 that slides back and forth is provided in the groove 5 (i.e., the friction plate 3 slides along the thickness direction of the bearing plate 2). The friction plate is a rectangular plate made of metal-based fiber reinforced material that corresponds to the groove 5. The lower ends of the two bearing plates 2 are close to each other and make staggered contact. The openings of the grooves 5 on the two bearing plates 2 are opposite to each other, that is, the lower parts of the friction plates 3 on the two bearing plates 2 are in frictional contact. When the lower ends of the left side surfaces of the n bearing plates 2 on the left side and the lower ends of the right side surfaces of the n bearing plates 2 on the right side are far apart, the two friction plates 3 on the same group are in relative pressing contact. The support member is used to support multiple support members. Figure 3 There are three sets of limiting components in the middle.

[0034] The bearing ring includes an upper block 6 and a lower block 7 that are symmetrically arranged. Both the upper block 6 and the lower block 7 are rectangular blocks. One side of each of the upper block 6 and the lower block 7 is recessed with an arc-shaped groove 8. An elastic gasket 9 is provided in the arc-shaped groove 8. After the upper block 6 and the lower block 7 are assembled, they are fitted over the pipe 1. Multiple limiting bolts 10 are provided on the upper block 6 and the lower block 7 for fixing them. The free end of the limiting bolt 10 moves through the upper block 6 and the lower block 7 and is limited by the limiting nut 11. A bubble level 19 is provided on the vertical side of each bearing ring.

[0035] Each friction plate 3 has a dovetail groove 12 recessed on its side away from the opening of the groove 5. The dovetail groove 12 is a groove opened along the length of the friction plate 3, and its two ends penetrate the two end faces of the friction plate 3 respectively. The bottom surface of the dovetail groove 12 is a raised arc-shaped surface away from the opening of the groove 5 (that is, the distance between the two ends of the bottom surface of the dovetail groove 12 and the opening of the groove 5 is less than the distance between the middle of the bottom surface of the dovetail groove 12 and the opening of the groove 5). Figure 8As shown), a steel strand 13 is provided inside the dovetail groove 12. The diameter of the steel strand 13 is larger than the opening width of the dovetail groove 12 to prevent the steel strand 13 from coming out of the dovetail groove 12. One end of the steel strand 13 is fixedly connected to the side of the groove 5, and the other end passes through the dovetail groove 12 and then movably passes through the bearing plate 2. Figure 8 As shown, in the initial state, the steel strand 13 is close to the bottom surface of the dovetail groove 12.

[0036] The lower end face of the n bearing plates 2 on the left is flush with the right side face of the n bearing plates 2 on the right, and the lower end face of the n bearing plates 2 on the right is flush with the left side face of the n bearing plates 2 on the left. The steel strands 13 in the n bearing plates 2 on the left pass through the lower end of the bearing plate 2 and are fixedly connected to a round rod 14. The round rod 14 contacts the right side face of the n bearing plates 2 on the right. The steel strands 13 in the n bearing plates 2 on the right pass through the lower end of the bearing plate 2 and are fixedly connected to a round rod 25. The round rod 25 contacts the left side face of the n bearing plates 2 on the left.

[0037] Preferably, each of the steel strands 13 has a connecting screw 16 fixed at one end extending from the bearing plate 2. The connecting screws 16 on the n steel strands 13 on the left side are movably inserted through the round rod 14 and are respectively limited by the locking nut 17, thereby achieving a fixed connection between the steel strands 13 and the round rod 14. The multiple connecting screws 16 on the n steel strands 13 on the right side are movably inserted through the round rod 2 15 and are respectively limited by the locking nut 2 18, thereby achieving a fixed connection between the steel strands 13 and the round rod 2 15.

[0038] Each friction plate 3 has an elastic element on its side away from the opening of the groove 5. The elastic element is offset from the dovetail groove 12 on the friction plate 3. The elastic element includes a connecting rod 20 and an elastic cylinder 21. The connecting rod 20 is a round rod and is fixedly connected to the friction plate 3. A circular countersunk hole 22 corresponding to the free end of the connecting rod 20 is recessed on the outer side of the bearing plate 2. The free end of the connecting rod 20 moves through the bearing plate 2 and extends into the circular countersunk hole 22. A baffle 23 is fixed at the end of the free end of the connecting rod 20. The baffle 23 is a round plate with a diameter that matches the diameter of the circular countersunk hole 22. An elastic cylinder 21 is provided in the circular countersunk hole 22. The elastic cylinder 21 is movably sleeved on the outside of the connecting rod 20. One end of the elastic cylinder 21 is connected to the inner bottom of the circular countersunk hole 22, and the other end is connected to the baffle 23. The inner bottom of the circular countersunk hole 22 is the side opposite to the opening of the circular countersunk hole 22. The elastic cylinder 21 is a cylindrical body made of elastic rubber.

[0039] When the elastic cylinder 21 on the friction plate 3 is in its natural state, the side of the friction plate 3 away from the dovetail groove 12 is flush with the opening of the groove 5, and the steel strand 13 located in the groove 5 is in contact with the arc-shaped surface of the dovetail groove 12.

[0040] The support includes a housing 24 and a support plate 25. The housing 24 is a rectangular box with an open top. The support plates 25 are symmetrically arranged on the left and right sides inside the housing 24. The front and rear sides of the support plates 25 slide in contact with the front and rear inner walls of the housing 24, respectively, to prevent the support plates 25 from rotating when the drive screw 26 is rotated. The top surface of the left support plate 25 is a sloped surface that slopes downward from the right end. The top surface of the left support plate 25 is in contact with the upper part of the left side surface of the n left bearing plates 2. The top surface of the right support plate 25 is in contact with the upper part of the right side surface of the n right bearing plates 2. The two support plates 25 are driven by the drive component and move relative to each other or in opposite directions.

[0041] The driving component includes a driving screw 26. The left and right sides of the peripheral wall of the driving screw 26 are respectively provided with a thread 28 and a thread 30 with opposite directions of thread. The left and right sides of the driving screw 26 are respectively threaded to two support plates 25. The left end of the driving screw moves through the left side plate of the housing 24 and connects to the rotating plate 31. The right end is rotatably connected to the right side plate of the housing 24 via a bearing 32.

[0042] When the foundation has not settled, the two pipes 1 are in a horizontal state, the bubble level 19 on each bearing ring is centered, and the support plate 25 on the support supports n limiting parts to keep the connection of the two pipes 1 horizontal.

[0043] When the foundation settles, the box 24 settles along with it, and the driving components and support plates 25 move downwards along with the box 24. During the downward movement of the two support plates 25, because the support plates 25 and the bearing plates 2 are in contact, the downward movement of the support plates 25 will not pull the bearing ring and the limiting components downwards. At this time, the connection between the two pipes 1 lacks support, so under the self-weight of the pipes, bearing rings, and limiting components, the right end of the left pipe 1 drives the bearing ring and the left bearing plate 2 to rotate downwards slightly clockwise, and the left end of the right pipe 1 drives the bearing ring and the right bearing plate 2 to rotate downwards slightly counterclockwise. At this time, the lower left side of the n bearing plates 2 on the left side and the right side... The lower ends of the right sides of the n bearing plates 2 are far apart (i.e., the opening and closing degree of the inverted V-shape formed by the left and right bearing plates 2 becomes larger). Furthermore, since the two pipes 1 are connected by a flexible socket, the connection point of the two pipes 1 allows for a small degree of bending deformation. When the lower ends of the left sides of the n bearing plates 2 on the left and the lower ends of the right sides of the n bearing plates 2 on the right are far apart, the left sides of the n bearing plates 2 on the left press against the round rod 15. The round rod 15 pulls the n steel strands 13 connected to the left. Since in the initial state, each steel strand 13 is in contact with the arc-shaped surface of its dovetail groove 12 and is in a bent shape, after the n steel strands 13 on the right are pulled, the steel strands located within their respective dovetail grooves 12... As the steel strands 13 gradually straighten, each steel strand 13 presses against the arc surface of the dovetail groove 12, causing the friction plate 3 of the dovetail groove 12 to gradually extend out of the groove and move towards another friction plate 3 on the same set of limiting members. Similarly, the right side of the n bearing plates 2 on the right presses against the round rod 14, and the round rod 14 pulls the n connected steel strands 13 to the right. Each steel strand 13 on the left is pulled, and the part of each steel strand 13 on the left that is located in the dovetail groove 12 straightens, pressing against the friction plate 3 and extending out of the groove 5. The friction plate 3 moves towards another friction plate 3 on the same set of limiting members. During the mutual movement of the two friction plates 3, the interaction force between the two friction plates 3 is relatively small in the initial stage of the pipe 1 tilting. The small friction energy dissipation mechanism converts part of the downward force of the pipe 1 into internal energy, thereby gradually releasing the settlement stress. As the lower ends of the left side of the n bearing plates 2 on the left and the lower ends of the right side of the n bearing plates 2 on the right continue to move away, the force between the two friction plates 3 on the same group gradually increases until the two friction plates 3 on the same group stop moving due to mutual pressure contact. At this time, the downward tilt between the opposite ends of the two pipes 1 stops. Unlike the traditional rigid connection that completely constrains the pipe 1 from the initial stage, the traditional rigid constraint is very easy to cause the pipe 1 to break during foundation settlement. However, the present invention significantly reduces the instantaneous stress impact through the "release first, then constrain" mechanism.At this point, the bubbles in the bubble levels 19 on each bearing ring are no longer centered, alerting the workers that foundation settlement has occurred. The workers then rotate the drive screw 26, causing the two support plates 25 to move relative to each other. The top surfaces of the two support plates 25 press against the bearing plates 2 on the same side, bringing the lower left sides of the n bearing plates 2 on the left closer to the lower right sides of the n bearing plates 2 on the right, until the bubbles in the bubble levels 19 on each bearing ring are centered. The two pipes 1 are then adjusted to be level, and the support components have compensated for the support provided to the two pipes 1.

[0044] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Any equivalent or similar modifications or substitutions to the technical solutions of the invention without departing from the spirit of the invention or the scope of disclosure shall fall within the protection scope of the present invention.

Claims

1. A pipeline seepage prevention deformation control support device based on soft soil foundation, installed at the connection of two adjacent pipelines (1), with a flexible socket connection between the two pipelines (1), characterized in that, The device includes a bearing ring, a support member, and at least n sets of limiting members. The outer walls of the two pipes (1) near the connection point are detachably connected to the bearing rings. The n sets of limiting members are arranged sequentially. Each set of limiting members includes two bearing plates (2). The two bearing plates (2) are arranged in an inverted V-shape. The tops of the two bearing plates (2) are fixed to the bottoms of the two bearing rings respectively. Each bearing plate (2) has a groove (5) recessed on its vertical side. The groove (5) is provided with a friction plate (3) that slides back and forth. The two bearing plates (2) are arranged opposite each other and their lower ends are close to each other. The lower parts of the friction plates (3) on the two bearing plates (2) are in frictional contact. When the lower ends of the left side of the n bearing plates (2) on the left side are far away from the lower ends of the right side of the n bearing plates (2) on the right side, the two friction plates (3) on the same set are in relative pressure contact. The support member is used to support the limiting members.

2. The pipeline seepage prevention deformation control support device based on soft soil foundation according to claim 1, characterized in that, The bearing ring includes an upper block (6) and a lower block (7) that are symmetrically arranged. An arc-shaped groove (8) is recessed on one side of the upper block (6) and the lower block (7). An elastic gasket (9) is provided in the arc-shaped groove (8). The upper block (6) and the lower block (7) are assembled and fitted onto the outside of the pipe (1). Multiple limiting bolts (10) for fixing the upper block (6) and the lower block (7) are provided on the upper block (6) and the lower block (7). A bubble level (19) is provided on the vertical side of each bearing ring.

3. The pipeline seepage prevention deformation control support device based on soft soil foundation according to claim 1, characterized in that, Each friction plate (3) has a dovetail groove (12) recessed on the side away from the opening of the groove (5). The bottom surface of the dovetail groove (12) is an arc-shaped surface that is raised away from the opening of the groove (5). A steel strand (13) is provided in the dovetail groove (12). The diameter of the steel strand (13) is larger than the opening width of the dovetail groove (12). One end of the steel strand (13) is fixedly connected to the side of the groove (5), and the other end passes through the dovetail groove (12) and then moves through the bearing plate (2).

4. The pipeline seepage prevention deformation control support device based on soft soil foundation according to claim 3, characterized in that, The steel strands (13) in the n bearing plates (2) on the left extend out of the lower end of the bearing plate (2) and are fixedly connected to a round rod (14). The round rod (14) contacts the right side of the n bearing plates (2) on the right. The steel strands (13) in the n bearing plates (2) on the right extend out of the lower end of the bearing plate (2) and are fixedly connected to a round rod (15). The round rod (15) contacts the left side of the n bearing plates (2) on the left.

5. A pipeline seepage prevention deformation control support device based on soft soil foundation according to claim 4, characterized in that, Each of the steel strands (13) has a connecting screw (16) fixed at one end extending from the bearing plate (2). The connecting screws (16) on the n steel strands (13) on the left side are movably passed through the first round rod (14) and are respectively limited by the first locking nut (17). The connecting screws (16) on the n steel strands (13) on the right side are movably passed through the second round rod (15) and are respectively limited by the second locking nut (18).

6. The pipeline seepage prevention deformation control support device based on soft soil foundation according to claim 5, characterized in that, Each of the friction plates (3) has an elastic element on the side away from the opening of the groove (5). The elastic element is misaligned with the dovetail groove (12) on the friction plate (3). The elastic element includes a connecting rod (20) and an elastic cylinder (21). The connecting rod (20) is fixedly connected to the friction plate (3). A circular countersunk hole (22) corresponding to the free end of the connecting rod (20) is recessed on the outer side of the bearing plate (2). The free end of the connecting rod (20) moves through the bearing plate (2) and extends into the circular countersunk hole (22). A baffle (23) is fixed at the end of the free end of the connecting rod (20). An elastic cylinder (21) is provided in the circular countersunk hole (22). The elastic cylinder (21) is movably sleeved outside the connecting rod (20). One end of the elastic cylinder (21) is connected to the bottom of the circular countersunk hole (22), and the other end is connected to the baffle (23).

7. A pipeline seepage prevention deformation control support device based on soft soil foundation according to claim 6, characterized in that, When the elastic cylinder (21) on the friction plate (3) is in its natural state, the side of the friction plate (3) away from the dovetail groove (12) is flush with the opening of the groove (5), and the steel strand (13) in the groove (5) is in contact with the arc surface of the dovetail groove (12).

8. A pipeline seepage prevention deformation control support device based on soft soil foundation according to claim 1, characterized in that, The support includes a box (24) and a support plate (25). The box (24) is symmetrically provided with support plates (25) on the left and right sides. The top surface of the left support plate (25) is a slope that slopes downward from the right end. The top surface of the left support plate (25) is in contact with the upper left side surface of the n left bearing plates (2). The top surface of the right support plate (25) is in contact with the upper right side surface of the n right bearing plates (2). The two support plates (25) are driven by the driving component and move relative to each other or in opposite directions.

9. A pipeline seepage prevention deformation control support device based on soft soil foundation according to claim 8, characterized in that, The driving component includes a driving screw (26). The left and right sides of the peripheral wall of the driving screw (26) are respectively provided with thread one (28) and thread two (30) with opposite thread directions. The left and right sides of the driving screw (26) are respectively threaded to two support plates (25). The left end of the driving screw moves through the left side plate of the housing (24) and connects to the rotating plate (31). The right end rotates and connects to the right side plate of the housing (24).

10. A pipeline seepage prevention deformation control support device based on soft soil foundation according to claim 9, characterized in that, The front and rear sides of the support plate (25) slide in contact with the front and rear inner walls of the box body (24), respectively.

Images