In-situ protection device for flexible pipeline

Abstract

The utility model relates to the field of underground pipeline protection, in particular to an in-situ protection device of a flexible pipeline, a suspension system comprises two longitudinal supports which are oppositely arranged, the tops of the longitudinal supports are connected with top cross beams, the bottoms of the longitudinal supports are connected with bottom cross links, and the longitudinal supports, the top cross beams and the bottom cross links form a frame structure; the suspension system further comprises a first groove-shaped piece, the first groove-shaped piece is located in the frame structure, the first groove-shaped piece is suspended below the top cross beam, the first groove-shaped piece is located above the bottom cross beam, the first groove-shaped piece is used for containing a flexible pipeline, and the inner wall of the first groove-shaped piece is attached to the outer wall of the flexible pipeline; the supporting system comprises a top beam, and the ends of the longitudinal supports are erected on the top beam. The flexible pipeline is supported by the first groove-shaped piece, the flexible pipeline is prevented from downwarping in the suspension process, the inner wall of the first groove-shaped piece is attached to the outer wall of the flexible pipeline, and the situation that the flexible pipeline shakes in the first groove-shaped piece, and consequently friction occurs between the flexible pipeline and the first groove-shaped piece is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of underground pipeline protection, in particular to an in-situ protection device for a flexible pipeline. Background Art

[0002] Infrastructure construction in various regions of the country is developing rapidly, including urban road reconstruction and expansion, tunnel construction, etc. However, in the construction of municipal engineering cities, land use is quite tight, and in the implementation process, various existing municipal pipelines and new projects are often encountered in three-dimensional intersections, such as water supply, gas, power cables, communication cables, etc. During the excavation of the foundation pit, the stability of the soil on both sides of the foundation pit will change. During the excavation process, the existing pipelines are prone to breakage and collapse, which affects the normal use of the existing pipelines and brings certain safety hazards to the construction. The relocation of municipal pipelines not only requires long-term coordination and communication with various property rights units, but also consumes a lot of money and affects the construction progress. Therefore, the suspension method is often used to protect the existing municipal pipelines in situ. For example, the Chinese invention patent application with patent publication number CN215267577U discloses a temporary suspension structure for existing pipelines, in which the existing pipeline is suspended under the beam by a steel wire rope. However, when the existing pipeline is a flexible pipeline (such as a flexible water supply pipeline, which needs to maintain water supply without interruption and needs to be protected in situ), when the flexible pipeline is suspended by a steel wire rope, the part of the flexible pipeline not suspended by the steel wire rope is prone to deflect, forming a concave section, causing damage to the flexible pipeline.

[0003] Or, if Figure 6 As shown, currently, channel steel 50 is installed in the soil to place the flexible pipeline 20. However, during municipal construction, operations around the channel steel 50 may easily cause the channel steel 50 to shake, which may cause the flexible pipeline 20 to shake inside the channel steel 50. The contact between the flexible pipeline 20 and the channel steel 50 may repeatedly rub under the shaking, which may also easily cause damage to the flexible pipeline 20.

[0004] Therefore, there is an urgent need to solve the problem of in-situ protection of flexible pipelines. Utility Model Content

[0005] The invention purpose of the utility model is to provide an in-situ protection device for flexible pipelines in view of the problem that the in-situ protection of existing flexible pipelines is difficult to solve in the background technology.

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

[0007] An in-situ protection device for a flexible pipeline, comprising a suspension system and a support system;

[0008] The suspension system comprises two longitudinal brackets arranged opposite to each other, the top of the longitudinal bracket is connected to a top cross beam, the bottom of the longitudinal bracket is connected to a bottom cross link, and the longitudinal bracket, the top cross beam and the bottom cross link form a frame structure;

[0009] The suspension system further comprises a first groove-shaped member, the first groove-shaped member is located in the frame structure, the first groove-shaped member is suspended below the top cross beam, and the first groove-shaped member is located above the bottom cross-link, the first groove-shaped member is used to place a flexible pipeline, and the inner wall of the first groove-shaped member is in contact with the outer wall of the flexible pipeline;

[0010] The support system comprises a crown beam, and the longitudinal bracket is erected on the crown beam.

[0011] The in-situ protection device of the present application includes a suspension system and a support system. The suspension system includes two relatively arranged longitudinal brackets, and a top cross beam is connected to the top of the longitudinal bracket, and a bottom cross connection is connected to the bottom of the longitudinal bracket. The longitudinal bracket, the top cross beam and the bottom cross connection are formed into a frame structure, thereby improving the overall structural strength of the suspension system, and facilitating a more stable suspension of the flexible pipeline. Furthermore, the first groove-shaped member is suspended below the top cross beam, and the first groove-shaped member is located above the bottom cross connection. The first groove-shaped member is used to place the flexible pipeline. By placing the flexible pipeline in the first groove-shaped member, the flexible pipeline is supported by the first groove-shaped member, and then the flexible pipeline is suspended on the top The first trough-shaped member is located above the bottom cross-link, so that the flexible pipeline is prevented from bending downward during the suspension process. In addition, since the first trough-shaped member is located above the bottom cross-link, when the first trough-shaped member is damaged or broken, the flexible pipeline will fall on the bottom cross-link. The bottom cross-link is used to protect the flexible pipeline and prevent it from falling into the construction pit. At the same time, the inner wall of the first trough-shaped member fits with the outer wall of the flexible pipeline, so that the flexible pipeline can be placed firmly in the first trough-shaped member, and shaking of the flexible pipeline in the first trough-shaped member is prevented, which causes friction between the flexible pipeline and the first trough-shaped member. Furthermore, the end of the longitudinal bracket is placed on the crown beam of the support system, so that the suspension system is supported by the crown beam.

[0012] As a preferred solution of the utility model, the top cross beam and the bottom cross link are arranged at intervals along the length direction of the longitudinal support, and the top cross beam corresponds to the bottom cross link in position.

[0013] As a preferred solution of the utility model, the first groove-shaped member is suspended below the top crossbeam by a steel wire rope, one end of the steel wire rope is connected to the top crossbeam, and the other end of the steel wire rope is connected to the outer wall of the first groove-shaped member.

[0014] As a preferred solution of the utility model, the angle between the steel wire rope and the top cross beam is an acute angle.

[0015] As a preferred solution of the present utility model, the angle between the steel wire rope and the top cross beam is an obtuse angle.

[0016] As a preferred solution of the present utility model, a flexible cushion layer is further provided between the first groove-shaped member and the flexible pipeline.

[0017] As a preferred solution of the present utility model, the inner wall of the first groove-shaped member is an arc surface.

[0018] As a preferred solution of the present utility model, the support system further comprises lattice columns, the lattice columns are arranged at intervals along the length direction of the longitudinal support, and the lattice columns are used to support the longitudinal support.

[0019] As a preferred solution of the utility model, a continuous wall is connected to the bottom of the crown beam, and a jet-jet pile is arranged on a side of the continuous wall away from the lattice column.

[0020] As a preferred solution of the utility model, the support system also includes concrete supports, which are arranged parallel to the longitudinal supports, are arranged between the lattice columns, and are also arranged between the lattice columns and the continuous wall.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0022] The in-situ protection device of the present application includes a suspension system and a support system. The suspension system includes two relatively arranged longitudinal brackets, and a top cross beam is connected to the top of the longitudinal bracket, and a bottom cross connection is connected to the bottom of the longitudinal bracket. By forming a frame structure with the longitudinal bracket, the top cross beam and the bottom cross connection, the overall structural strength of the suspension system is improved, which facilitates a more stable suspension of the flexible pipeline. Furthermore, the first groove-shaped member is suspended below the top cross beam, and the first groove-shaped member is located above the bottom cross connection. The first groove-shaped member is used to place the flexible pipeline. By placing the flexible pipeline in the first groove-shaped member, the flexible pipeline is supported by the first groove-shaped member, and then the flexible pipeline is suspended on the top Below the crossbeam, the flexible pipeline is prevented from bending downward during the suspension process, and because the first trough-shaped member is located above the bottom cross-link, when the first trough-shaped member is damaged or broken, the flexible pipeline will fall on the bottom cross-link, and the flexible pipeline is protected by the bottom cross-link to prevent the flexible pipeline from falling into the construction pit. At the same time, the inner wall of the first trough-shaped member fits with the outer wall of the flexible pipeline, so that the flexible pipeline can be placed firmly in the first trough-shaped member, avoiding the friction between the flexible pipeline and the first trough-shaped member when the flexible pipeline shakes. Furthermore, the suspension system is supported by the crown beam by placing the end of the longitudinal bracket on the crown beam of the support system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the utility model.

[0024] Figure 2 yes Figure 1 AA section view.

[0025] Figure 3 yes Figure 1 A partial enlarged view of point B.

[0026] Figure 4 yes Figure 2 A partial enlarged schematic diagram of point C (suspension schematic diagram of the first groove-shaped member).

[0027] Figure 5 The figure is a schematic diagram of the suspension of a preferred first groove-shaped member.

[0028] Figure 6 It is a schematic diagram of the background technology.

[0029] Markings in the figure: 1-longitudinal support, 2-top cross beam, 3-bottom cross connection, 4-steel wire rope, 5-first trough-shaped member, 51-lifting ear, 6-flexible cushion, 7-crown beam, 8-lattice column, 9-diaphragm wall, 10-concrete support, 11-jet grouting pile, 12-tie beam, 13-column pile, 14-concrete waist beam, 20-flexible pipeline, 30-tunnel, 40-slope, 50-channel steel. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in combination with test examples and specific implementation methods. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0031] In the description of the specific embodiments of the present invention, unless otherwise specified, the terms indicating the orientation or position relationship such as "upper", "lower", "left", "right", "center", "inside", "outside", etc. are all expressions based on the orientation or position relationship shown in the drawings, or the orientation or position relationship of the invented product / equipment / device when it is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the present invention or simplifying the description in the specific embodiments, so as to facilitate the technicians to quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.

[0032] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the solution of the utility model.

[0033] In addition, the expressions “first”, “second”, “third”, etc. that appear in the terms are merely descriptions used to distinguish the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0034] In addition, in the description of the embodiments of the present invention, "several", "multiple" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0035] In addition, in the description of the technical solution of the utility model, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two components.

[0036] Example 1

[0037] like Figure 1-Figure 4 As shown, an in-situ protection device for a flexible pipeline described in this embodiment includes a suspension system and a support system;

[0038] The suspension system includes two longitudinal brackets 1 arranged opposite to each other, the top of the longitudinal bracket 1 is connected to a top cross beam 2, the bottom of the longitudinal bracket 1 is connected to a bottom cross link 3, and the longitudinal bracket 1, the top cross beam 2 and the bottom cross link 3 form a frame structure;

[0039] The suspension system further includes a first groove-shaped member 5, which is located in the frame structure, is suspended below the top cross beam 2, and is located above the bottom cross link 3, and is used to place the flexible pipeline 20, and the inner wall of the first groove-shaped member 5 is in contact with the outer wall of the flexible pipeline 20;

[0040] The supporting system comprises a crown beam 7 , and the longitudinal support 1 is erected on the crown beam 7 .

[0041] By forming a frame structure with the longitudinal support 1, the top cross beam 2 and the bottom cross link 3, the overall structural strength of the suspension system is improved, which facilitates a more stable suspension of the flexible pipeline 20. Furthermore, the first groove member 5 is suspended below the top cross beam 2, and the first groove member 5 is located above the bottom cross link 3. The first groove member 5 is used to place the flexible pipeline 20. By placing the flexible pipeline 20 in the first groove member 5, the flexible pipeline 20 is supported by the first groove member 5, and then the flexible pipeline 20 is suspended below the top cross beam 2, thereby avoiding the flexible pipeline 20 from deflecting during the suspension process. In addition, since the first groove member 5 is located at the bottom Above the cross-link 3, when the first groove-shaped member 5 is damaged or broken, the flexible pipeline 20 will fall onto the bottom cross-link 3, and the flexible pipeline 20 is protected by the bottom cross-link 3 to prevent the flexible pipeline 20 from falling into the construction pit. At the same time, the inner wall of the first groove-shaped member 5 fits with the outer wall of the flexible pipeline 20, so that the flexible pipeline 20 can be placed firmly in the first groove-shaped member 5, avoiding the friction between the flexible pipeline 20 and the first groove-shaped member 5 when the flexible pipeline 20 shakes in the first groove-shaped member 5. Furthermore, the suspension system is supported by the crown beam 7 by placing the end of the longitudinal bracket 1 on the crown beam 7 of the support system.

[0042] A preferred method is as follows Figure 1 As shown, the ends of the longitudinal supports 1 are placed on the crown beam 7 .

[0043] In a preferred manner, when the longitudinal support 1 is relatively long, such as when the end of the longitudinal support 1 extends to the outside of the crown beam 7 , the middle portion of the longitudinal support 1 may be placed on the crown beam 7 .

[0044] A preferred method is as follows Figure 1-Figure 2 As shown, the top cross beams 2 and the bottom cross links 3 are arranged at intervals along the length direction of the longitudinal bracket 1, and the top cross beams 2 correspond to the bottom cross links 3. By arranging multiple groups of top cross beams 2 and bottom cross links 3 at corresponding positions at intervals along the length direction of the longitudinal bracket 1, the frame structure composed of the longitudinal bracket 1, the top cross beams 2 and the bottom cross links 3 is made more solid, and it is convenient to hang the first channel member 5 through multiple top cross beams 2, and it is also convenient to receive the flexible pipeline 20 through multiple bottom cross links 3 when the first channel member 5 is damaged or broken.

[0045] A preferred method is as follows Figure 2 As shown, the first channel member 5 is suspended below the top cross beam 2 by a steel wire rope 4 , one end of the steel wire rope 4 is connected to the top cross beam 2 , and the other end of the steel wire rope 4 is connected to the outer wall of the first channel member 5 .

[0046] Among them, Figure 4 As shown, a lifting lug 51 is welded on the side wall of the first channel member 5 , and the steel wire rope 4 is connected to the lifting lug 51 , so that the first channel member 5 is suspended on the top cross beam 2 by the steel wire rope 4 .

[0047] A preferred method is as follows Figure 4 As shown, a flexible cushion layer 6 is further provided between the first groove member 5 and the flexible pipe 20. By providing the flexible cushion layer 6 between the first groove member 5 and the flexible pipe 20, the flexible pipe 20 is further protected. In the present application, the flexible cushion layer 6 matches the outer wall shape of the flexible pipe 20, wherein the flexible cushion layer 6 can be a rubber layer, a sponge layer, etc.

[0048] A preferred method is as follows Figure 4 As shown, the inner wall of the first groove member 5 is an arc surface, and the inner wall of the first groove member 5 matches the outer wall of the flexible pipe 20, so that after the flexible pipe 20 is placed in the first groove member 5, the inner wall of the first groove member 5 fits with the outer wall of the flexible pipe 20 to reduce the shaking friction between the first groove member 5 and the flexible pipe 20.

[0049] In a preferred embodiment, the first channel member 5 is a semicircular steel pipe.

[0050] like Figure 1-Figure 2 As shown, the support system further includes lattice columns 8 , which are arranged at intervals along the length direction of the longitudinal support 1 , and are used to support the longitudinal support 1 . The bottom of the lattice columns 8 is connected to column piles 13 .

[0051] The bottom of the crown beam 7 is connected to a continuous wall 9, and a jet grouting pile 11 is arranged on the side of the continuous wall 9 away from the lattice column 8. The bearing capacity of the crown beam 7 is enhanced by arranging the crown beam 7 on the continuous wall 9, and the jet grouting pile 11 is arranged on the side of the continuous wall 9 away from the lattice column 8. The strength of the continuous wall 9 is increased by the jet grouting pile 11, the pressure of the soil outside the continuous wall 9 is reduced, and the stability of the foundation pit during construction is ensured.

[0052] like Figure 2 As shown, the support system further includes concrete supports 10, which are arranged parallel to the longitudinal support 1, and concrete supports 10 are arranged between the lattice columns 8, and between the lattice columns 8 and the continuous wall 9. The adjacent lattice columns 8 and the lattice columns 8 and the continuous wall 9 are connected into a whole by the concrete supports 10, thereby increasing the overall strength of the support system.

[0053] A preferred method is as follows Figure 2 As shown, tie beams 12 are connected between adjacent lattice columns 8 in a direction perpendicular to the length of the longitudinal support 1 .

[0054] A preferred method is as follows Figure 2 As shown, a concrete waist beam 14 is also provided at the connection between the concrete support 10 and the continuous wall 9, and the concrete waist beam 14 is provided perpendicular to the length direction of the longitudinal support 1. The concrete waist beam 14 is provided at the connection between the concrete support 10 and the continuous wall 9.

[0055] In a preferred embodiment, the longitudinal support 1 is a double-row, double-layer reinforced Bailey frame.

[0056] In a preferred embodiment, the top cross beam 2 and the bottom cross beam 3 are made of double-jointed I-beams.

[0057] A preferred method is as follows Figure 1 As shown, after the flexible pipeline 20 is suspended above the foundation pit by the first channel member 5, a tunnel 30 is constructed in the foundation pit.

[0058] In a preferred method, the lower part of the flexible pipeline 20 outside the foundation pit is reinforced by grouting with a sleeve valve pipe on the ground. During the reinforcement, the flexible pipeline 20 is monitored to prevent the flexible pipeline 20 from bulging due to excessive grouting pressure. The sleeve valve pipe adopts a 48mm PVC pipe, and the grouting slurry is mainly ordinary cement single liquid slurry, using 42.5R grade ordinary Portland cement; the grouting diffusion radius is 0.75m; the slurry water-cement ratio is 0.8, and the grouting pressure is controlled at 0.5MPa to 0.8MPa.

[0059] A preferred method is as follows Figure 1 As shown, the side slopes 40 on both sides of the longitudinal support 1 are sloped at a ratio of 1:1, and 100 mm thick C20 concrete is sprayed, that is, the slope surface is meshed and sprayed.

[0060] In a preferred embodiment, a rubber pad is provided between the steel wire rope 4 and the top cross beam 2 at a spacing of 1.0 m.

[0061] Example 2

[0062] On the basis of Example 1, Figure 4 As shown, the angle between the steel wire rope 4 and the top cross beam 2 is an acute angle, wherein the angle between the steel wire rope 4 and the top cross beam 2 is θ1, and the range of θ1 is 75° to 85°.

[0063] When the flexible pipeline 20 is suspended on the first trough member 5, the angle between the wire rope 4 and the top cross beam 2 is an acute angle, and the wire rope 4 will generate a horizontal component force to reduce the shaking of the first trough member 5 caused by the foundation pit construction, thereby reducing the shaking of the flexible pipeline 20 caused by the construction work.

[0064] Example 3

[0065] On the basis of Example 1, Figure 5 As shown, the angle between the steel wire rope 4 and the top cross beam 2 is an obtuse angle, wherein the angle between the steel wire rope 4 and the top cross beam 2 is θ2, and the range of θ2 is 95° to 105°.

[0066] When the flexible pipeline 20 is suspended on the first trough member 5, the angle between the wire rope 4 and the top cross beam 2 is an obtuse angle, and the wire rope 4 will generate a horizontal component force to reduce the shaking of the first trough member 5 caused by the foundation pit construction, thereby reducing the shaking of the flexible pipeline 20 caused by the construction work.

[0067] 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. An in-situ protection device for a flexible pipeline, characterized in that: Including suspension system and support system; The suspension system comprises two longitudinal supports (1) arranged opposite to each other, the top of the longitudinal supports (1) is connected to a top cross beam (2), the bottom of the longitudinal supports (1) is connected to a bottom cross link (3), and the longitudinal supports (1), the top cross beam (2) and the bottom cross link (3) form a frame structure; The suspension system further comprises a first groove-shaped member (5), the first groove-shaped member (5) being located in the frame structure, the first groove-shaped member (5) being suspended below the top cross beam (2), and the first groove-shaped member (5) being located above the bottom cross link (3), the first groove-shaped member (5) being used for placing a flexible pipeline (20), and the inner wall of the first groove-shaped member (5) being in contact with the outer wall of the flexible pipeline (20); The support system comprises a crown beam (7), and the longitudinal support (1) is erected on the crown beam (7).

2. The in-situ protection device for a flexible pipeline according to claim 1, characterized in that: The top cross beam (2) and the bottom cross link (3) are arranged at intervals along the length direction of the longitudinal support (1), and the top cross beam (2) and the bottom cross link (3) are located in corresponding positions.

3. The in-situ protection device for a flexible pipeline according to claim 1, characterized in that: The first channel-shaped member (5) is suspended below the top cross beam (2) via a steel wire rope (4), one end of the steel wire rope (4) is connected to the top cross beam (2), and the other end of the steel wire rope (4) is connected to the outer wall of the first channel-shaped member (5).

4. The in-situ protection device for a flexible pipeline according to claim 3, characterized in that: The angle between the steel wire rope (4) and the top cross beam (2) is an acute angle.

5. The in-situ protection device for a flexible pipeline according to claim 3, characterized in that: The angle between the steel wire rope (4) and the top cross beam (2) is an obtuse angle.

6. The in-situ protection device for a flexible pipeline according to claim 1, characterized in that: A flexible cushion layer (6) is also provided between the first groove-shaped member (5) and the flexible pipeline (20).

7. The in-situ protection device for a flexible pipeline according to claim 1, characterized in that: The inner wall of the first groove-shaped member (5) is an arc surface.

8. An in-situ protection device for a flexible pipeline according to any one of claims 1 to 7, characterized in that: The support system further comprises lattice columns (8), wherein the lattice columns (8) are arranged at intervals along the length direction of the longitudinal support (1), and the lattice columns (8) are used to support the longitudinal support (1).

9. The in-situ protection device for a flexible pipeline according to claim 8, characterized in that: The bottom of the crown beam (7) is connected to a continuous wall (9), and a jet grouting pile (11) is arranged on a side of the continuous wall (9) away from the lattice column (8).

10. The in-situ protection device for a flexible pipeline according to claim 9, characterized in that: The support system further comprises a concrete support (10), wherein the concrete support (10) is arranged parallel to the longitudinal support (1), the concrete support (10) is arranged between the lattice columns (8), and the concrete support (10) is also arranged between the lattice columns (8) and the continuous wall (9).

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