Sea / river penetrating pipeline balancing weight structure

Abstract

The utility model relates to a balancing weight structure of a sea / river penetrating pipeline. The method is suitable for the technical field of pipeline engineering. The technical problem to be solved by the utility model is to provide the balancing weight structure for the sea / river penetrating pipeline. According to the technical scheme, the balancing weight structure for the sea / river penetrating pipeline comprises two balancing weights which are symmetrically arranged and a plurality of connecting bolts which connect the two balancing weights together, arc-shaped notches are formed in the opposite faces of the two balancing weights, and a channel for the pipeline to penetrate through is formed after the two balancing weights are folded. And a rubber gasket is arranged between the pipeline and the inner wall of the arc-shaped notch.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline engineering, and particularly relates to a counterweight block structure for a pipeline passing through a sea or a river. Background Art

[0002] Pipelines that cross the riverbed have been widely used all over the world, showing their outstanding advancement and economy. Internationally, pipelines that cross the riverbed are mainly used in three major markets: sewage discharge pipelines and water intake pipelines, pipelines that cross the riverbed, pipelines that cross the riverbed, pipelines that have special requirements for oil and gas extraction, and currently, large-scale applications have begun in the field of pipelines that cross the riverbed.

[0003] The counterweights for pipelines crossing (sea) rivers are an engineering technology designed to support and protect pipelines, cables and other facilities crossing the bottom of (sea) rivers. Its main goal is to ensure that the laid pipelines, cables and other facilities remain stable and safe under the complex water flow and (sea) riverbed pressure environment. In order to achieve this goal, the counterweights for pipelines, cables and other facilities crossing (sea) rivers have sufficient weight to provide sufficient support for the pipelines, effectively resist the pressure of water flow and (sea) riverbed, and maintain stability and safety.

[0004] Traditional counterweights for pipelines crossing (sea) rivers are usually made of cast-in-place high-strength concrete or other water-resistant materials, which have good stability and durability in water. However, they have the disadvantages of long construction time, large excavation area, and high labor and material costs, which need to be improved. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and provide a counterweight block structure for sea / river pipelines, which can effectively save material usage, shorten the construction period, reduce the amount of excavation, and reduce the overall cost.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A counterweight structure for a sea / river pipeline comprises two symmetrically arranged counterweights and a plurality of connecting bolts connecting the two counterweights together. The two counterweights are provided with arc-shaped recesses on opposite sides thereof, which form a passage for the pipeline to pass through when closed. A rubber gasket is provided between the pipeline and the inner wall of the arc-shaped recess.

[0008] Preferably, each counterweight block is provided with reserved holes on both sides, the reserved holes of the two counterweight blocks are arranged in alignment, and the connecting bolts are inserted into the aligned reserved holes and fastened by nuts.

[0009] Preferably, the counterweight block is provided with a groove for facilitating the tightening of the nut.

[0010] Preferably, the counterweight is provided with a lifting ring.

[0011] Preferably, the two counterweights are connected to form a hexagonal or octagonal structure.

[0012] Preferably, the diameter of the reserved hole is 3-4 mm larger than the diameter of the connecting bolt.

[0013] Preferably, a gap of 20-30 mm is maintained between the two counterweights.

[0014] The utility model has the following beneficial effects: the utility model uses a spliced ​​counterweight block to replace the traditional (sea) riverbed cast-in-place concrete method, which can save material and manpower, machinery and other costs, save construction time, reduce excavation area, and reduce overall construction costs. It can be flexibly arranged according to slope conditions, and the fastening force between the two counterweight blocks can be adjusted within a certain range, and the scope of application is wider. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a main structural diagram of an embodiment of the utility model;

[0016] Figure 2 is a side sectional view of an embodiment of the utility model;

[0017] Figure 3 It is a top view of the structure of an embodiment of the utility model;

[0018] Figure 4 yes Figure 3 AA cross-section diagram in which a counterweight is omitted;

[0019] Figure 5 yes Figure 3 BB cross-section diagram in which a counterweight is omitted;

[0020] In the figure: a first counterweight block 1, a second counterweight block 2, a reserved hole 3, a groove 4, a connecting bolt 5, a pipe 6, a rubber gasket 7, and a lifting ring 8. DETAILED DESCRIPTION

[0021] In order to enable ordinary technicians in the field to more clearly understand the purpose, technical solutions and advantages of the utility model, the utility model is further explained below in conjunction with the accompanying drawings and embodiments, but the utility model is not limited to the following embodiments.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] See also Figures 1 to 5 The present embodiment provides a counterweight structure for a sea / river pipeline, comprising a symmetrically arranged first counterweight 1 and a second counterweight 2, and a plurality of connecting bolts 5 connecting the two counterweights. Both counterweights are prefabricated reinforced concrete structures, and arc-shaped recesses adapted to the outer wall of a pipeline 6 are formed on the opposite sides of the two counterweights, and a passage for the pipeline 6 to pass through is formed when the two counterweights are closed, and a rubber gasket 7 is provided between the pipeline 6 and the inner wall of the arc-shaped recess. In the present embodiment, the sea / river pipeline 6 is a PE pipeline 6 or a steel pipeline 6.

[0024] See also Figure 1 , the two counterweights are connected to form a hexagonal or octagonal structure, with a gap of 20-30mm between the two counterweights, and a lifting ring 8 is provided on each counterweight. Reserved holes 3 are provided on both sides of each counterweight, and the reserved holes 3 of the two counterweights are arranged in alignment. The connecting bolts 5 are inserted into the aligned reserved holes 3 and fastened by nuts. In order to facilitate the fastening operation, the aperture of the reserved hole 3 is 3-4mm larger than the diameter of the connecting bolt 5. The counterweight is provided with a groove 4 for nut fastening. The fastening force of the connecting bolt 5 on the counterweight can be adjusted by the nut, so that the two counterweights fix the pipe 6 wrapped with a layer of rubber gasket 7. The fastening force of the connecting bolt 5 should be 2 to 3 times the mass of the counterweight, and the connecting bolt 5 has corrosion resistance and high strength.

[0025] The thickness, width and distribution spacing of two adjacent sets of counterweight structures are determined according to the anti-floating and anti-scouring conditions of the (sea) river pipeline 6. For example, the standard thickness of the counterweight is 150mm, 200mm, 250mm, 300mm, and the standard width is 0.4, 0.6m, 0.8m, 1m.

[0026] During installation, it is necessary to excavate a trench for the pipeline 6 , the slope ratio of the trench excavation is not less than 1:4, and the buried depth of the pipe top of the pipeline 6 from the (sea) river bottom is not less than 1.2 m.

[0027] The method of using this embodiment is as follows:

[0028] Before the pipeline passes through the (sea) river, the width and thickness of the counterweight, the distribution spacing and the selection of the connecting bolts are calculated according to the design requirements and on-site working conditions, and the counterweight is prefabricated according to the calculation results, and the finished counterweight and pipeline materials are transported to the site for assembly;

[0029] Determine the installation position of the counterweight on the pipeline, wrap the rubber gasket at the installation position, fasten the counterweight to the determined installation position through the connecting bolts, and then transport the pipeline with the installed counterweight to the (sea) river trench excavation position, and then slowly place the pipeline into the excavated (sea) river bottom trench. After the pipeline is placed in the trench, backfill both sides of the pipeline and cover the pipeline with soil to the (sea) riverbed elevation.

[0030] The above is only a preferred embodiment of the utility model. For those skilled in the art, the utility model can be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A counterweight structure for sea / river pipelines, characterized by: The invention comprises two symmetrically arranged counterweight blocks and a plurality of connecting bolts (5) connecting the two counterweight blocks together. The two counterweight blocks are provided with arc-shaped recesses on opposite sides thereof. When closed, a passage for a pipe (6) to pass through is formed. A rubber gasket (7) is provided between the pipe (6) and the inner wall of the arc-shaped recess. A reserved hole (3) is provided on both sides of each counterweight block. The reserved holes (3) of the two counterweight blocks are arranged in alignment. The connecting bolts (5) are inserted into the aligned reserved holes (3) and are fastened by nuts. The counterweight blocks are provided with grooves (4) for facilitating the fastening of nuts. The counterweight blocks are provided with lifting rings (8). When the two counterweight blocks are connected, they have a hexagonal or octagonal structure. The diameter of the reserved hole (3) is 3-4 mm larger than the diameter of the connecting bolt (5). A gap of 20-30 mm is maintained between the two counterweight blocks.

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