JP3242151U - Anti-scouring protection device for wading building pile foundation - Google Patents

Abstract

[PROBLEMS] To provide a scouring prevention device for a wading construction pile foundation that consumes less construction material, has a lower degree of work difficulty, and effectively reduces construction costs and construction difficulty. A wading construction pile foundation anti-scouring protection device is suitable for laying on the floor surface around the perimeter of a pile column, and is a polyhedral frame structure formed by hinged ends of connecting rods. , and adjacent connecting rods or adjacent permeable units can be arbitrarily pivoted to form permeable rows with a certain flexibility. Permeable columns, on the one hand, allow high-velocity water flow to avoid direct contact with the bed surface, moderate the impact action of the water flow, and suppress sediment transport on the bed surface and undercutting of the river/sea bed. , on the other hand, it can slow down the movement of water currents, promote the sedimentation of water-borne sediments and the uplift of river/seabeds, always tightly adhere to the surface of river/seabeds, and prevent scouring. Ensure protective effect. [Selection drawing] Fig. 1

Description

TECHNICAL FIELD The present invention relates to the technical field of water conservancy work, and more particularly to an anti-scouring protection device for wading building pile foundations.

Pile foundations for wading construction (e.g. bridges, offshore wind farms) change the local water flow structure, causing sediment scouring on the upstream surface and undercutting of the river or seabed, which affects the stability of the pile foundation and the construction as a whole. threaten the structural safety of To solve this problem, prior art wading works place large amounts of anti-scouring solid material, such as large stone blocks, concrete structures, etc., on the floor surface around the pile posts. However, the mass laying of anti-scouring solid materials increases construction costs, makes construction difficult, and also limits the service life of the materials. At the same time, an accurate grasp of the topography of the riverbed/seabed is required, which increases the amount of construction work, especially underwater work. In addition, when exposed to strong flooding or severe sea conditions, the anti-scouring protection function of the construction will be greatly reduced, and it will be necessary to continuously invest human and financial resources for maintenance.

Therefore, the technical problem to be solved by the present invention is to overcome the drawbacks of the conventional wading construction, such as the high cost of the anti-scouring solid material, the difficulty of construction, and the limited service life of the wading construction. To provide an anti-scouring protection device for building pile foundations.

In order to solve the above problem, the present invention comprises a plurality of water permeable units suitable for laying on the floor surface around the perimeter of the pile column, including a plurality of connecting rods, and connecting the ends of the plurality of connecting rods. to form a polyhedral frame structure, and adjacent permeable units or adjacent connecting rods can be arbitrarily rotated to form permeable rows with flexibility. Provide equipment.

Optionally, the water permeable unit comprises 6 connecting rods that form a regular tetrahedral structure by connection with each other.

Optionally, a plurality of permeable units are pivotally connected at vertices of adjacent permeable units to form permeable rows.

Optionally, the connecting rods include a rod body and connecting rings located at opposite ends of the rod bodies, wherein the connecting rings on adjacent rod bodies are hinged at the ends of adjacent rod bodies and rotate in any direction. movably connected.

Optionally, the connecting ring is a locking ring or locking ring.

Optionally, a pivot structure is provided between the rod body and the connecting ring.

Optionally, the pivot structure is a steerable structure such as a roller bowl group or a universal joint.

Optionally, the ratio of the pile diameter to the length of the rod body is in the range of 4-16.

Optionally, the permeable column is circular or oval in plan in the laying area.

Optionally, the ratio of the planar diameter of the laying area of the permeable column and the pile diameter is in the range of 3-6.

Optionally, the permeable row is laid around at least part of the circumferential floor surface of the pile.

Optionally, the permeable columns are arranged in single or multiple layers along the depth direction.

The present invention has the following advantages.
According to the technical solution of the present invention, the anti-scouring protection device for wading building pile foundation comprises a permeable line formed by a plurality of permeable units. Adjacent permeable units are rotatably connected, each permeable unit comprises 6 connecting rods, adjacent connecting rods are also rotatably connected, and the 6 connecting rods form a tetrahedral frame structure. . In the above structure, permeable columns, on the one hand, prevent high-velocity water flow from direct contact with the floor surface, moderate the impact action of the water flow, and reduce the transport of sediments on the floor surface and the sub-cutting of the river/sea floor. On the other hand, it can slow the movement of water currents, promote the settling and sedimentation of water-borne sediments, and promote the uplift of river/seabeds. At the same time, the water permeable line as a whole is configured by attaching connecting rods, so the consumption of construction materials is small, the difficulty of construction is low, and the cost and difficulty of construction are effectively reduced. Since adjacent connecting rods or adjacent permeable units are rotatably connected, the permeable row as a whole has a high degree of freedom. Even if the river/seabed is scouring, the permeable line will always adhere tightly to the surface of the riverbed or seabed under its own gravitational action to ensure the anti-scouring protection effect, thus reducing the deformation of the floor surface. There is no need to worry about the expiration of the construction due to the construction, so it is possible to reduce the cost of late maintenance and ensure the long-term display of construction value. Therefore, the technical solution of the present invention solves the drawbacks that the anti-scouring solid material has high cost, difficult construction and limited service life in the wading construction of the prior art.

In order to describe the specific embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly describes the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. , The accompanying drawings in the following description are part of the embodiments of the present invention, and it is obvious to those skilled in the art that other drawings can be obtained based on them without creative activities. Will.
1 is a cross-sectional view of the anti-scouring protection device for wading construction pile foundation of the present invention; FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of Embodiment 1 of the anti-scouring protection device for wading construction pile foundation of the present invention; FIG. 2 is a schematic diagram of connecting a plurality of permeable units of the anti-scouring protection device for wading building pile foundation in FIG. 1 ; FIG. 2 is a schematic diagram showing the structure of a single permeable unit of the anti-scouring protection device for wading building pile foundation in FIG. 1; FIG. 2 is a schematic diagram showing the structure of a connecting rod in FIG. 1; Fig. 2 is a plan view of the second embodiment of the anti-scouring protection device for wading construction pile foundation of the present invention;

The following clearly and completely describes the technical solutions of the present invention in conjunction with the drawings, but it is obvious that the above embodiments are only a part of the embodiments of the present invention, but not all of them. For those skilled in the art, other embodiments obtained without creative activities based on the embodiments of the present invention shall all fall within the protection scope of the present invention.

In the description of the present invention, the orientations and positional relationships indicated by the terms "center", "upper", "lower", "inner", "outer", etc. are based on those shown in the drawings, and does not indicate or imply that the devices or elements referred to have any particular orientation, or that they should be configured or operated in any particular orientation. , should not be construed as limiting the invention. Further, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.

In the description of the invention, unless expressly specified or restricted, the terms "attached", "connected", "connected" may be, for example, a fixed connection, a detachable connection, or an integral connection. It may be a physical connection, a mechanical connection, or an electrical connection, and it may be in direct contact or indirectly through an intermediate. It should be noted that it is understood broadly to mean that it may be both internal and contiguous within two elements. A person skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific situation.

It should be noted that the technical features according to different embodiments of the present invention described below can be combined with each other as long as they do not contradict each other.

As shown in FIGS. 1 to 5, Embodiment 1 of the anti-scouring protection device for wading construction pile foundation of the present application comprises a plurality of permeable units 10 including a plurality of connecting rods 11, and the plurality of connecting rods 11 The ends are hinged to form a polyhedral frame structure, and adjacent permeable units 10 or adjacent connecting rods 11 can be arbitrarily pivoted to form permeable rows 20 with a certain flexibility. can. A permeable line 20 is laid on the floor surface of the perimeter of the pile pillar 1 .

According to the technical measures of this embodiment, the anti-scouring protection device for wading building pile foundation includes a permeable line 20 formed by a plurality of permeable units 10 . Adjacent permeable units 10 are rotatably connected, each permeable unit 10 has six connecting rods 11, and the six connecting rods form a regular tetrahedral frame structure. In the above structure, the permeable column 20, on the one hand, avoids direct contact of the high-velocity water flow with the floor surface, moderates the impingement action of the water flow, and reduces the transport of sediment on the floor surface and the undercutting of the river/sea floor. On the other hand, it can reduce the movement speed of water currents, promote the sedimentation and sedimentation of water-borne sediments, and promote the uplift of riverbeds/seabeds. At the same time, since the water permeable row 20 is constructed by attaching the connecting rods 11 as a whole, the consumption of construction materials is small, the degree of difficulty of work is low, and the cost and difficulty of construction are effectively reduced. Since the adjacent connecting rods 11 or the adjacent permeable units 10 are rotatably connected, the permeable row 20 as a whole has a high degree of freedom, and even if the river/seabed is scoured, the permeable row 20 will remain in its place. Under its own gravity, it always tightly adheres to the surface of the riverbed or seabed to ensure the anti-scouring protection effect, so there is no need to worry about the work being invalidated due to deformation of the floor surface, and the cost of late maintenance is reduced. At the same time, it is possible to ensure the long-term display of construction value. Therefore, the technical solution of this embodiment solves the drawbacks of the conventional wading construction, such as the high cost of the anti-scouring solid material, the difficult construction, and the limited service life.

As shown in FIG. 4, the permeable unit 10 comprises six connecting rods 11 which form a regular tetrahedral permeable frame structure by connection with each other. Specifically, each face of the permeable unit 10 is an equilateral triangle, which ensures the structural stability of the permeable line 20 as a whole, suppresses the movement of sediment on the floor surface, and promotes sedimentation in the water. In two respects, it is possible to realize the purpose of pile foundation anti-scouring protection.

Of course, in some embodiments not shown, the permeable unit 10 may be formed in other shapes, for example, the permeable unit 10 may be formed into a hexahedral frame unit by twelve connecting rods. good. The specific shape of the water permeable unit 10 can be determined by those skilled in the art according to actual needs.

As shown in FIG. 3 , in the technical means of this embodiment, a plurality of permeable units 10 are rotatably connected at the vertical angle of adjacent permeable units 10 to form a permeable line 20 . Specifically, the permeable row 20 is formed by connecting a plurality of permeable units 10, and since the permeable unit 10 has a regular tetrahedron structure, it has four vertical angles. Since the vertices of the adjacent permeable units 10 are connected by hinges, the permeable row 20 has a high degree of freedom and can be deformed as a whole.

As the river or sea bed is scoured, the surface of the river or sea bed changes. However, the permeable row 20, under the action of the structure's own gravity, can always adhere closely to the surface of the river or seabed to maintain the most efficient anti-scouring protection.

As shown in FIG. 5 , in the technical means of this embodiment, the connecting rod 11 includes a rod body 111 and a connecting ring 112 installed at both ends of the rod body 111 to connect the adjacent rod bodies 111 . Rings 112 are connected to hinge the ends of adjacent rod bodies 111 .

Specifically, the rod body 111 is an elongated structure with a circular cross section, and is a basic frame unit for constructing the permeable line 20 . Both ends of the rod body 111 are provided with connecting rings 112 , that is, one rod body 111 is provided with two connecting rings 112 . 4 and 5, in two adjacent rod bodies 111, the ends of the two rod bodies 111 are connected by a connecting ring 112, that is, the adjacent rod bodies 111 are rotatably connected to each other. It is

Moreover, in the technical means of this embodiment, the connecting ring 112 is a fixed ring or a locking ring. Specifically, the fixed ring has a closed ring structure in which the fixed rings of the adjacent rod bodies 111 are connected and then closed by means such as welding or fasteners. The locking ring is easy to assemble as the locking catch allows the coupling ring 112 to be opened and closed.

In this embodiment, the use of a fixing ring further improves the structural stability of the permeable column 20 as a whole. It is used for the permeable line 20 to be laid. Conversely, in the water permeable line 20 constructed in multiple layers, since locking rings are used in the other layers above the first layer, there is an advantage in that construction is easy.

As shown in FIG. 5 , in the technical means of this embodiment, a pivoting structure 113 is provided between the rod body 111 and the connecting ring 112 . The rotation structure allows the rod body 111 and the connecting ring 112 to be twisted in any direction, and when the permeable line 20 is formed by a plurality of permeable units 10, the permeable line 20 is further secured with a high degree of freedom. can be done.

Preferably, pivot structure 113 is a roller bowl group. Of course, in other embodiments not shown, pivot structure 113 may be other steerable structures such as universal joints.

Preferably, the rod body 111, the connecting ring 112 and the pivot structure 113 are connected together by welding.

In this embodiment, the combination of connecting ring 112 and pivoting structure 113 allows permeable row 20 to settle to a new floor surface under the action of its own gravity once the floor surface has been scoured, The tight fit ensures that the most efficient anti-scouring protection is continuously provided.

Preferably, the rod body 111 is environmentally friendly with a certain degree of tension and compression resistance, which can self-degrade in a few years after the construction purpose is achieved, avoiding pollution of rivers, oceans and destruction of ecosystems. Materials can be chosen.

In the technical means of this embodiment, the length and diameter of the rod body 111 are determined according to factors such as the size of the pile column 1, hydrodynamic conditions, and grain size of soil and sand. It corresponds to 1/16 to 1/4 times the column diameter, and the porosity of the permeable column 20 must be about 0.75. ensuring adhesion between the permeable column 20 and the outer shell of the pile column 1 and the surface of the river/seabed; Selected after consideration.

Furthermore, by appropriately roughening the surface of the rod body 111 (for example, surface etching or sandblasting), the scouring prevention effect of the water permeable line 20 can be further improved.

As shown in FIG. 2, in the technical means of the present embodiment, the planar shape of the laying area of the permeable line 20 is circular. Specifically, the water permeable line 20 is installed around the pile column 1 in the entire circumferential direction, and is suitable for an environment where the water flow is strong and the movement direction changes intricately. Anti-dig protection can be provided.

Preferably, the ratio of the planar diameter of the installation area of the permeable column 20 and the diameter of the pile column 1 in this embodiment is in the range of 3-6.

Specifically, in this embodiment, first, the installation area of the permeable line 20 is determined according to the planar shape of the pile pillar 1 . The permeable line 20 should be laid radially around the pile column 1, and the diameter of the final laying area should be 3 to 6 times the diameter of the pile column 1. .

Furthermore, depending on the aquatic environment, the permeable line 20 can be laid in a single layer or in multiple layers.

In areas with strong hydrodynamic conditions, it is preferable to select a larger laying area (for example, the diameter of the laying area is more than 6 times the diameter of the pile column 1) and lay the permeable line 20 in multiple layers. .

In areas with weak hydrodynamics, a smaller laying area (for example, the diameter of the laying area is three times the diameter of the pile column 1) can be selected and the permeable line 20 can be laid in a single layer.

As shown in FIG. 6, the second embodiment of the anti-scouring protection device for wading construction pile foundations according to the present application differs from the above-described first embodiment in that the permeable line 20 extends in the circumferential direction of the pile column 1. Part of this is to go around the pile pillar 1 .

Specifically, in Example 2, the permeable line 20 is preferentially laid on the upstream surface of the pile column 1, including expansion of the laying area and an increase in the number of laying layers. On the side of the pile column, the laying area and the number of layers of the permeable line 20 can be gradually reduced. On the downstream side of the pile column 1, the amount of the permeable line 20 to be laid may be further reduced, or may not be laid depending on the case.

Therefore, in Example 2, the permeable row 20 has an elliptical structure, and the permeable row 20 partially encircles the pile column 1 in the circumferential direction.

It is clear that the above examples are merely examples for the purpose of clarifying rather than limiting the embodiments. A person skilled in the art can make various modifications or changes based on the above description. It is neither necessary nor possible to cover all embodiments here. Obvious variations or modifications introduced therefrom are still covered by the protection scope of the invention.

Reference Signs List 1 pile column 10 permeable unit 11 connecting rod 111 rod body 112 connecting ring 113 rotating structure 20 permeable row

Claims (12)

A plurality of water permeable units (10), including a plurality of connecting rods (11), suitable for being installed on the floor surface around the perimeter of the pile column (1), wherein the ends of the plurality of connecting rods (11) are hinged. A polyhedral frame structure is formed, and adjacent permeable units (10) or adjacent connecting rods (11) are arbitrarily rotatable to form permeable rows (20) having flexibility. Anti-scouring protection device for wading construction pile foundation. Anti-scouring protection of wading building pile foundation according to claim 1, characterized in that said permeable unit (10) comprises six said connecting rods (11) which form a tetrahedral frame structure by mutual connection. Device. A plurality of said permeable units (10) or connecting rods (11) are rotatably connected at the vertices of adjacent said permeable units (10) or the uppermost ends of adjacent said connecting rods (11), said permeable rows Anti-scouring protection device for wading building pile foundation according to claim 2, characterized in that (20) is formed. The connecting rod (11) includes a rod body (111) and connecting rings (112) installed at both ends of the rod body (111), and the connecting rings (112) of the adjacent connecting rods (11) are: An anti-scouring protection device for wading construction pile foundation according to any one of claims 1 to 3, characterized in that the ends of adjacent connecting rods (11) are hingedly connected. The anti-scouring protection device for wading construction pile foundation according to claim 4, characterized in that the connecting ring (112) is a fixing ring or a locking ring. The anti-scouring protection device for wading building pile foundation according to claim 4, characterized in that a pivoting structure (113) is provided between the rod body (111) and the connecting ring (112). The anti-scouring protection device for wading construction pile foundation according to claim 6, characterized in that the pivot structure (113) is a roller bowl group or a universal joint. The anti-scouring protection device for wading building pile foundation according to claim 4, characterized in that the ratio of the diameter of the pile column (1) to the length of the rod body (111) is in the range of 4 to 16. . The scouring prevention and protection device for wading construction pile foundation according to any one of claims 1 to 3, wherein the permeable line (20) has a circular or elliptical planar shape in the laying area. The wading construction pile foundation according to claim 9, wherein the ratio of the planar shape diameter of the laying area of the permeable column (20) and the diameter of the pile column (1) is in the range of 3 to 6. Anti-scouring protector. The wading according to any one of claims 1 to 3, wherein the permeable line (20) is laid around at least a part of the floor surface in the circumferential direction of the pile column (1). Anti-scouring protection device for building pile foundations. The anti-scouring protection device for wading construction pile foundation according to any one of claims 1 to 3, characterized in that the permeable line (20) is arranged in a single layer or multiple layers along the water depth direction. .

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