Corner anchor block device suitable for offshore pipe burying in soft soil layer

Abstract

The utility model belongs to the technical field of pipeline sewage discharge engineering, and discloses a corner anchor block device suitable for offshore pipe burying in a soft soil layer. Comprising a pile foundation, a hoop beam, a pile cap and a steel beam. The bottom ends of the pile foundations are used for being inserted into a soft foundation, and the pile foundations are arranged at the corners of the steel pipes and distributed in a triangular mode. The hoop beam is fixed on the pile body of the pile foundation; the bottom of the pile cap is connected to the top of the pile foundation; the bottom of the steel beam is connected to the top of the pile cap, the steel beam is used for connecting and fixing the pile foundation, and the hoop beams are fixedly connected through I-shaped steel. According to the design scheme of the device, the influence of water flow centrifugal force on the steel pipe at the corner position is effectively reduced, and large displacement of the steel pipe due to the centrifugal force is avoided; the overall structure at the corner position of the pipeline is safer and more stable, the pile foundation can adapt to a soft soil layer under the sea, and the stability is good; the pile foundation and the pile cap adopt an underwater concrete pouring process, construction is simple and convenient, components such as the pile cap and the hoop beam can be customized according to reality, and actual construction requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline sewage discharge engineering, in particular to a corner anchor device suitable for offshore buried pipes in soft soil layers. Background Art

[0002] When constructing drainage pipelines under the ocean, anchors are common gravity-supported structures used in water conservancy and hydropower projects, municipal projects, and oil and gas pipeline projects to prevent pressure pipelines from slipping, overturning, and twisting. There are two types of anchors: open and closed. Buried pressure pipelines generally use closed anchors. In projects such as long-distance pressurized water pipelines, hydropower station penstocks, and municipal water supply networks, anchors are often required at the bends of the horizontal and vertical surfaces of the pipelines to meet the stability requirements of the turning points. Oil and gas pipelines also often have anchors at the bends to limit displacement caused by temperature and pressure. If the foundation soil layer is a weak soil layer, it is difficult to build anchors to fix the steel pipes at the corners. At the same time, ordinary anchors are prone to uneven settlement and damage to the pipeline.

[0003] Therefore, it is urgent to explore a corner anchor device solution for offshore buried pipes with stable structure and applicable to soft soil layers. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects in the prior art that the steel pipe corners are easily displaced by the centrifugal force of the water flow, and it is difficult to build anchor piers for fixing in soft soil layers, and to provide a new design scheme of corner anchor pier device suitable for offshore buried pipes in soft soil layers.

[0005] A corner anchor device suitable for offshore buried pipes in soft soil layers, comprising:

[0006] A pile foundation, the bottom end of which is used to be inserted into a soft foundation;

[0007] A hoop beam, wherein the hoop beam is fixed to the pile body of the pile foundation;

[0008] A pile cap, the bottom of which is connected to the top of the pile foundation;

[0009] A steel beam, the bottom of which is connected to the top of the pile cap, and the steel beam is used to connect and fix the pile foundation.

[0010] In this solution, the corner stabilization device suitable for offshore buried pipes in soft soil layers is connected by pile foundations, hoop beams, pile caps and steel beams, and has a stable structure, safe and reliable. The design of the device effectively reduces the influence of the centrifugal force of the water flow on the steel pipe at the corner position, avoiding the slippage and overturning of the steel pipe. The overall structure at the corner position of the pipeline is safer and more reliable, and the steel pipe high piles can adapt to the soft soil layers under the sea and have good stability. The pile foundation and the pile cap adopt concrete casting technology, and the construction is simple and convenient. The pile cap, the hoop beam and other components can be prefabricated according to factory standards to achieve large-scale production and reduce the cost.

[0011] Preferably, the pile foundation is arranged at the corner of the steel pipe in a triangular shape.

[0012] Preferably, the top of the pile foundation is provided with the pile cap, and the bottom of the steel beam is fixed to the pile cap.

[0013] In this solution, the hoop beams on each of the pile foundations are connected and fixed by I-shaped steel plates to limit the displacement of the steel pipe.

[0014] Preferably, concrete is poured above the pile cap to cast and fix the pile foundation and the pile cap as one.

[0015] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0016] The positive and progressive effects of the utility model are:

[0017] The corner anchor device suitable for offshore buried pipes in soft soil layers is formed by connecting pile foundations, hoop beams, pile caps and steel beams, and has a stable structure, safety and reliability. The design of the device effectively reduces the influence of the centrifugal force of the water flow on the steel pipe at the corner position, avoiding the steel pipe from slipping and overturning. The overall structure at the corner position of the pipeline is safer and more reliable, and the steel pipe high piles can adapt to the soft soil layer under the sea and have good stability. The pile foundation and the pile cap adopt concrete casting technology, and the construction is simple and convenient. The pile cap, the hoop beam and other components can be prefabricated according to factory standards to achieve large-scale production and reduce the cost.

[0018] In addition, for the corner anchor device suitable for offshore buried pipes in soft soil layers, when it needs to be remodeled in the future, the above four components can be dismantled stably and orderly without leaving waste concrete in the soil, reducing the impact on the ecology. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a plan view of a corner anchor device suitable for offshore pipe burial in soft soil according to a preferred embodiment of the present invention.

[0020] Figure 2It is a cross-sectional view of a corner anchor device suitable for offshore buried pipes in soft soil layers according to a preferred embodiment of the utility model.

[0021] Figure 3 It is a cross-sectional view of the pile foundation of a corner anchoring device suitable for offshore buried pipes in soft soil layers according to a preferred embodiment of the utility model.

[0022] Figure 4 It is a top view of a hoop beam of a corner anchoring device suitable for offshore pipe burial in soft soil layers according to a preferred embodiment of the utility model.

[0023] The numbers in the figure are: 1. Pile foundation; 2. Hoop beam; 3. Pile cap; 4. Steel beam; 5. Steel pipe; 6. I-beam. DETAILED DESCRIPTION

[0024] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0025] This embodiment discloses a corner anchor device suitable for offshore buried pipes in soft soil layers, such as Figure 1-2 As shown, the corner anchoring device for offshore buried pipes in soft soil layers comprises a pile foundation 1, a hoop beam 2, a pile cap 3 and a steel beam 4. The bottom end of the pile foundation 1 is used to insert into the soft foundation; the hoop beam 2 is fixed to the pile body of the pile foundation 1; the bottom of the pile cap 3 is connected to the top of the pile foundation 1; the bottom of the steel beam 4 is connected to the top of the pile cap 3, and the steel beam 4 is used to connect and fix the pile foundation 1.

[0026] In this design, the corner anchor device for offshore pipes in soft soil layers is connected by pile foundation 1, hoop beam 2, pile cap 3 and steel beam 4, and has a stable structure, safe and reliable. The design of this device effectively reduces the influence of the centrifugal force of the water flow on the steel pipe at the corner position, avoiding the steel pipe from slipping and overturning. The overall structure at the corner position of the pipeline is safer and more reliable, and the steel pipe high pile can adapt to the soft soil layer under the sea and has good stability. The pile foundation and the pile cap adopt the concrete pouring process, which is simple and convenient to construct. The pile cap and the hoop beam and other components can be prefabricated according to factory standards to achieve large-scale production and reduce the cost. In addition, for the corner anchor device suitable for offshore pipes in soft soil layers, when it needs to be remodeled in the future, the above four components can be stably and orderly dismantled without leaving waste concrete in the soil, reducing the impact on the ecology.

[0027] The pile foundation 1 is arranged at the corner of the steel pipe 5 in a triangular shape. The top of the pile foundation 1 is provided with a pile cap 3, and the bottom of the steel beam 4 is fixed to the pile cap 3. The hoop beams 2 on each pile foundation 1 are connected and fixed by an I-shaped steel plate 6 to limit the displacement of the steel pipe 5. Concrete is poured on the top of the pile cap 3 to cast and fix the pile foundation 1 and the pile cap 3 as a whole.

[0028] Specifically, the pile cap 3 extends into the pile foundation for fixation, and the top width of the pile cap can be slightly wider than the pile foundation. The reinforcement of standard prefabricated components must meet the strength requirements. The steel pipe is wrapped with buffer rubber, and the pile cap 3 and the pile foundation 1 are cast with C30 concrete.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are 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.

[0030] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A corner anchor device suitable for offshore buried pipes in soft soil layers, characterized in that: It includes: A pile foundation (1), the bottom end of the pile foundation (1) being used to be inserted into a soft foundation; A hoop beam (2), wherein the hoop beam (2) is fixed to the pile body of the pile foundation (1); A pile cap (3), the bottom of the pile cap (3) being connected to the top of the pile foundation (1); A steel beam (4), the bottom of the steel beam (4) is connected to the top of the pile cap (3), and the steel beam (4) is used to connect and fix the pile foundation (1).

2. The corner anchor device for offshore pipe burial in soft soil as claimed in claim 1, characterized in that: The pile foundation (1) is arranged at the corner of the steel pipe (5) in a triangular shape.

3. The corner anchor device for offshore pipe burial in soft soil as claimed in claim 2, characterized in that: The top of the pile foundation (1) is provided with the pile cap (3), and the bottom of the steel beam (4) is fixed to the pile cap (3).

4. The corner anchor device for offshore pipe burial in soft soil as claimed in claim 1, characterized in that: The hoop beams (2) on each pile foundation (1) are connected and fixed by means of I-shaped steel plates (6) to limit the displacement of the steel pipe (5).

5. The corner anchor device for offshore pipe burial in soft soil as claimed in claim 3, characterized in that: Concrete is poured onto the pile cap (3), so that the pile foundation (1) and the pile cap (3) are cast and fixed as a whole.

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