Polygonal bank protection pile with three-centered arc inner wall

Abstract

The utility model discloses a polygonal bank protection pile with a three-centered arc inner wall, which comprises a bank protection pile body, the bank protection pile body is a stand column with an inner wall and an outer wall which are opposite to each other, and the cross section of the outer wall is a symmetrical polygonal outline defined by connecting a bottom edge and a plurality of side edges. The cross section of the inner wall is a three-centered arc-shaped notch arranged along the bottom edge, the two ends of the three-centered arc are located on the bottom edge, and the three-centered arc is configured to cut the bottom edge into two divided sections. According to the bank protection pile, materials can be effectively saved, the bank protection area is increased, and good bending resistance and economical efficiency are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated bank protection structures, in particular to a polygonal bank protection pile with a three-center arc inner wall. Background Art

[0002] At present, retaining structures are required for the construction of river, lake, weir and other regulation projects. Common support methods include concrete cast-in-place piles, underground continuous walls, self-supporting cement retaining walls, new cement soil mixing pile walls (SoilMixing Wall method, SMW method for short), steel sheet piles, etc. However, traditional support structures are greatly affected by weather, have unstable construction periods, high costs, poor corrosion resistance, and high maintenance costs.

[0003] As an ideal revetment pile structure, precast concrete piles have the advantages of reliable product quality, fast construction, good corrosion resistance, etc. At present, there are many geometric shapes of precast concrete piles, but there are still some limitations in the design, and it is difficult to take into account the matching of span, height and economy.

[0004] The existing revetment pile cross-section arc inner wall design has problems such as the inability to adjust the height-span ratio and the arc angle limitation, which leads to a mismatch between the force performance and the economy. Therefore, it is urgent to solve the limitations of the existing revetment pile design and provide a more practical and adaptable revetment pile solution.

[0005] Therefore, technicians in this field are committed to developing a polygonal revetment pile with a three-center arc inner wall, which can effectively save materials, increase the revetment area, and has good bending resistance and economy. Utility Model Content

[0006] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the utility model is that the existing cross-sectional arc inner wall design of the bank protection pile has problems such as the inability to adjust the height-span ratio and the arc angle limitation, resulting in a mismatch between the force bearing performance and the economic efficiency.

[0007] To achieve the above-mentioned purpose, the utility model provides a polygonal revetment pile with a three-center arc inner wall, including a revetment pile body, wherein the revetment pile body is a column with relative inner and outer walls, the cross-section of the outer wall is a symmetrical polygonal profile defined by a bottom edge and a plurality of side edges, the cross-section of the inner wall is a three-center arc-shaped recess arranged along the bottom edge, the two ends of the three-center arc are located on the bottom edge, and are configured to shear the bottom edge into two separate sections.

[0008] Furthermore, it also includes a steel frame cage, which is arranged in the revetment pile body along the length direction of the revetment pile body, and the steel frame cage includes a plurality of prestressed steel bars and a plurality of stirrups. The plurality of prestressed steel bars are arranged along the length direction of the revetment pile body, and the cross-sections of the plurality of prestressed steel bars are arranged in an isosceles trapezoidal shape; each stirrup is arranged perpendicular to the plurality of prestressed steel bars, and the plurality of stirrups are distributed at intervals along the length direction of the revetment pile body, and the plurality of stirrups are fixedly connected to the plurality of prestressed steel bars.

[0009] Furthermore, the three-center circular arc is symmetrical, and the central axis of the polygonal contour coincides with the central axis of the three-center circular arc.

[0010] Furthermore, the three-center arc includes a first arc, a second arc and a third arc connected in sequence, one end of the first arc is connected to a section of the base, one end of the third arc is connected to another section of the base, the first arc is inscribed in the second arc, the third arc is inscribed in the second arc, and the radii of the first arc and the third arc are equal.

[0011] Furthermore, the revetment pile body is a plurality of revetment pile bodies arranged in a straight line, and connecting parts are arranged on both sides of the outer wall of each revetment pile body along the length direction of the revetment pile body, and the connecting parts are configured to connect adjacent revetment pile bodies together.

[0012] Furthermore, the connection part includes a first connection part and a second connection part, the first connection part is arranged on one side of the outer wall, the second connection part is arranged on the other side of the outer wall, and the first connection part and the second connection part have mutually concave and convex shapes.

[0013] Furthermore, the inner walls of adjacent revetment pile bodies face the same direction, and each of the first connecting portions and the second connecting portion of the adjacent revetment pile bodies have mutually concave-convex shapes.

[0014] Furthermore, the inner walls of adjacent revetment pile bodies face in opposite directions, and each of the first connecting portions and the first connecting portion of an adjacent revetment pile body have mutually concave-convex shapes.

[0015] Furthermore, the polygonal outline includes one of a triangle, an arc-shaped triangle, a rectangle, an isosceles trapezoid, a pentagon, and a hexagon.

[0016] Furthermore, the mutually concave and convex shapes include one of a semicircle, an arc, a rectangle, and a trapezoid.

[0017] The beneficial effects of the utility model are:

[0018] 1. Compared with similar products, the pile body has the characteristics of light weight and good bending and shear mechanical properties; the pile body adopts full prestressed tendons, which saves materials and has obvious mechanical advantages.

[0019] 2. It has a wide range of application scenarios, and is mostly used for retaining earth and load-bearing foundations of slopes, roads or revetments in engineering fields such as water conservancy, municipal administration, industrial and civil construction, ports, railways, highways, bridges, and seawall reinforcement.

[0020] 3. Good ecology. The design of the inner wall of the three-center arc is convenient for the habitat of aquatic plants and animals, ensuring the ecological balance of the slope.

[0021] 4. The design of the concave and convex joints ensures that the splicing is complete and reliable, reduces the impact of water erosion on the safety of the bank, and protects water and soil from being lost.

[0022] 5. It is safe, stable and reliable, and can protect the river channel during flood season. Compared with traditional retaining walls and revetments, it has no risk of water damage.

[0023] 6. The construction is efficient and convenient, and it can be carried out in water. It is not affected by construction during the flood season and is an important tool for water conservancy departments to prevent and rescue floods.

[0024] 7. The comprehensive economic benefits are high. Compared with traditional retaining walls, it can save 20% of the cost per meter and more than 60% of the construction period, which is convenient for project management and provides added value for project construction.

[0025] 8. Good environmental performance, no secondary pollution at the construction site, and a clean and orderly construction environment.

[0026] 9. The product quality is reliable. It is fully prefabricated in the factory. Each process is strictly inspected and records of each link are traceable to prevent quality accidents caused by human factors.

[0027] 10. Good durability. The pile body is formed by centrifugal process, with high strength and more reliable service life.

[0028] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the main structure of the bank protection pile of Example 1 of the utility model;

[0030] Figure 2 It is a schematic diagram of the main structure of the bank protection pile of Example 2 of the utility model;

[0031] Figure 3 It is a schematic diagram of the main structure of the bank protection pile of Example 3 of the utility model;

[0032] Figure 4 It is a schematic diagram of the main structure of the bank protection pile of Example 4 of the utility model;

[0033] Figure 5 It is a schematic diagram of the cross-sectional shape of the bank protection pile body of a preferred embodiment of the utility model;

[0034] Figure 6 It is a schematic diagram of the connection parts on both sides of the bank protection pile body of a preferred embodiment of the utility model;

[0035] Figure 7 It is a three-dimensional structural schematic diagram of a bank protection pile body of a preferred embodiment of the utility model.

[0036] Among them, 10-bank pile body, 11-inner wall, 12-outer wall, 13-first connecting part, 14-second connecting part, 15-protective surface, 20-steel skeleton cage, 21-prestressed steel bar, 22-hoops, 111-first arc, 112-second arc, 113-third arc, 121-base, 122-side, 123-triangle, 124-arc triangle, 125-isosceles trapezoid, 126-hexagon, 131-semicircle, 132-rectangle, 133-trapezoid, 134-straight line. DETAILED DESCRIPTION

[0037] The following describes several preferred embodiments of the utility model with reference to the drawings in the specification, so that the technical content is clearer and easier to understand. The utility model can be embodied in many different forms of embodiments, and the protection scope of the utility model is not limited to the embodiments mentioned in the text.

[0038] In the drawings, components with the same structure are indicated by the same numerical labels, and components with similar structures or functions are indicated by similar numerical labels. The size and thickness of each component shown in the drawings are arbitrarily shown, and the utility model does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of the components is appropriately exaggerated in some places in the drawings.

[0039] Considering the stress characteristics of the revetment pile, the utility model proposes a polygonal concrete revetment pile design with a three-center arc inner wall, which can effectively save materials, increase the revetment area, and has good bending resistance and economy. The existing revetment pile cross-section arc inner wall design has problems such as the inability to adjust the height-span ratio and the arc angle limitation, resulting in a mismatch between stress performance and economy. The revetment pile adopts a revetment pile body with a polygonal cross section, uses full prestressed tendons, and is manufactured using high-strength concrete centrifugal forming technology. In addition, the revetment pile body also adopts a three-center arc inner wall design. Through these improvements, the revetment pile of the utility model overcomes the shortcomings of the existing revetment piles and provides better performance and function. The revetment pile body with a polygonal cross section enhances the compression and tension resistance, and the application of full prestressed tendons further enhances the stability of the pile body. At the same time, the use of high-strength concrete centrifugal forming technology makes the pile body have excellent durability and corrosion resistance. The design of the three-center arc inner wall and the mutually concave and convex embedded connection further optimizes the structure of the revetment pile body and improves its stability under the impact of water flow. Therefore, the utility model aims to solve the limitations of the existing revetment pile design and provide a revetment pile solution with greater practical value and adaptability.

[0040] A three-center arc is composed of three tangent arcs (three arcs have three centers). A three-center arc has the following characteristics:

[0041] 1. The tangent line of any point on the three arc segments of the three-center arc should be perpendicular to the arc radius of the point, including the tangent line of the tangent point of the three arc segments must be perpendicular to the coincidence line of the middle arc and the radius of one side arc. If it does not have this characteristic, it is not a standard arc arch. The one-center arc arch is a semicircular arch, which is only a special case of the three-center arc arch.

[0042] 2. The center of the middle arc is on the axis of symmetry of the three-center arc, and the line connecting the centers of the arcs on both sides is bisected perpendicularly by the central axis of symmetry.

[0043] Example 1

[0044] like Figure 1 As shown, this embodiment provides a polygonal revetment pile with a three-center arc inner wall, the revetment pile includes a revetment pile body 10, the revetment pile body 10 is a column with opposite inner walls 11 and outer walls 12, the cross section of the outer wall 12 is a symmetrical polygonal profile defined by a bottom edge 121 and a plurality of side edges 122, the cross section of the inner wall 11 is a semicircular notch arranged along the bottom edge, the two ends of the semicircle are located on the bottom edge 121, and the bottom edge 121 is sheared into two separate sections.

[0045] Optionally, the semicircle is symmetrical, and the central axis of the polygonal outline coincides with the central axis of the semicircle.

[0046] Optionally, the cross section of the outer wall 12 of the revetment pile body 10 is an isosceles trapezoid.

[0047] Specifically, the setting of the semicircular inner wall 11 makes the revetment pile body 10 form a C shape. When the revetment pile body 10 contacts the surrounding foundation pit, the inner side surface of the semicircular inner wall 11 can be used as a contact surface, thereby expanding the force-bearing surface of the revetment pile body 10, and therefore having stronger bending and shear resistance.

[0048] Optionally, a plurality of revetment pile bodies 10 may be arranged in a straight line, and connecting parts are provided on both sides of the outer wall 12 of each revetment pile body 10 along the length direction of the revetment pile body 10 , and the connecting parts can connect adjacent revetment pile bodies 10 together.

[0049] Specifically, when adjacent revetment pile bodies 10 are connected by connecting parts, the corresponding connecting parts of the adjacent revetment pile bodies 10 will also fit together. In places such as riverbanks and dams, when multiple revetment pile bodies 10 are required to be compactly inserted adjacent to each other on the ground, an effective anti-leakage effect can be achieved. The protective surface 15 of the revetment pile body 10 can prevent water objects, such as passing ships, from causing damage when approaching the revetment pile body 10, and also plays an aesthetic role.

[0050] Optionally, the connection portion includes a first connection portion 13 and a second connection portion 14, the first connection portion 13 and the second connection portion 14 are arranged along the length direction of the revetment pile body 10, the first connection portion 13 is arranged on one side of the outer wall 12, and the second connection portion 14 is arranged on the other side of the outer wall 12, and the first connection portion 13 and the second connection portion 14 have mutually concave and convex shapes. When a plurality of revetment pile bodies 10 are connected side by side and the upper top surfaces of the isosceles trapezoids formed by the cross sections of adjacent revetment pile bodies 10 face the same side, and the inner walls 11 of adjacent revetment pile bodies 10 face the same direction, each first connection portion 13 and the second connection portion 14 of the adjacent revetment pile body 10 have mutually concave and convex shapes, and each revetment pile body 10 can be inserted and connected with each other through the first connection portion 13 and the second connection portion 14 of the adjacent revetment pile body 10.

[0051] Specifically, a semicircular first connecting portion 13 and a second connecting portion 14 are provided on both sides of the revetment pile, and adjacent revetment pile bodies 10 are connected through the first connecting portion 13 and the second connecting portion 14 to prevent separation, and at the same time, a better anti-leakage effect can be achieved. The cross-section of the outer wall 12 of the revetment pile body 10 of the revetment pile is a polygonal profile. When the revetment pile is impacted by a strong water flow, it can also maintain its original state, which solves the problem that the water-facing surface of the existing revetment piles is generally a plane or an arc surface, and does not have good compression and pull-out resistance, and has strong stability.

[0052] Optionally, a steel frame cage 20 is further included. The cross section of the steel frame cage 20 is U-shaped. The steel frame cage 20 is arranged inside the revetment pile body 10 along the length direction of the revetment pile body 10 .

[0053] The revetment pile body 10 is made of concrete material.

[0054] Specifically, the concrete strength grade can reach C60, C70, C80 or even higher. The steel cage 20 is cast with concrete material to form the revetment pile body 10. The steel cage 20 is used to improve the compressive strength of the revetment pile body 10 to improve the bearing capacity of the revetment pile body 10.

[0055] Optionally, the steel skeleton cage 20 includes a plurality of prestressed steel bars 21 and a plurality of stirrups 22, the plurality of prestressed steel bars 21 are arranged along the length direction of the bank protection pile body 10, and the cross-sections of the plurality of prestressed steel bars 21 are arranged in an isosceles trapezoidal shape; each stirrup 22 is arranged perpendicular to the plurality of prestressed steel bars 21, the plurality of stirrups 22 are distributed at intervals along the length direction of the bank protection pile body 10, and the plurality of stirrups 22 are fixedly connected to the plurality of prestressed steel bars 21 in a U shape.

[0056] Specifically, the stirrups 22 and the prestressed steel bars 21 are welded to form a steel bar cage 20 . The stirrups 22 are used to fix the position of the prestressed steel bars 21 , thereby preventing the prestressed steel bars 21 from bending after being stressed, thereby improving the bearing capacity of the bank protection pile body 10 .

[0057] Optionally, the symmetrical ends on both sides of the outer wall 12 of the revetment pile body 10 are provided with a semicircular first connecting portion 13 and a second connecting portion 14 perpendicular to the side surface, the upper top surface of the revetment pile body 10 is provided with a protective surface 15 parallel to the upper top surface, and adjacent revetment pile bodies 10 are respectively connected into a whole through the semicircular first connecting portion 13 and the second connecting portion 14.

[0058] Optionally, at least two hanging parts are pre-buried on the revetment pile body 10 .

[0059] Specifically, the hanging piece can be used to lift the bank protection pile body 10 and move the bank protection pile body 10 to a designated position.

[0060] Optionally, glass fiber and anti-seepage agent are provided in the revetment pile body 10 .

[0061] Specifically, the glass fiber has high mechanical strength and crack resistance, which can increase the strength of the revetment pile body 10. The anti-seepage agent has excellent water resistance and can effectively prevent water from penetrating. The water resistance level can reach P8, P10 or even higher. Therefore, the revetment pile has the characteristics of anti-cracking and anti-leakage.

[0062] Example 2

[0063] like Figure 2As shown, this embodiment provides a polygonal revetment pile with a three-center arc inner wall, the revetment pile includes a revetment pile body 10, the revetment pile body 10 is a column with opposite inner walls 11 and outer walls 12, the cross section of the outer wall 12 is a symmetrical polygonal profile defined by a bottom edge 121 and a plurality of side edges 122, the cross section of the inner wall 11 is a semicircular notch arranged along the bottom edge, the two ends of the semicircle are located on the bottom edge 121, and the bottom edge 121 is sheared into two separate sections.

[0064] Optionally, the cross section of the outer wall 12 of the revetment pile body 10 is an isosceles trapezoid.

[0065] Optionally, a plurality of revetment pile bodies 10 may be arranged in a straight line, and connecting parts are provided on both sides of the outer wall 12 of each revetment pile body 10 along the length direction of the revetment pile body 10 , and the connecting parts can connect adjacent revetment pile bodies 10 together.

[0066] Optionally, the two symmetrical ends of the revetment pile body 10 are provided with a first connecting portion 13 and a second connecting portion 14 perpendicular to the bottom surface, and the upper surface of the revetment pile body 10 is provided with a protective surface 15 parallel to the bottom surface, and each revetment pile body 10 is connected to the first connecting portion 13 and the first connecting portion 1 of the adjacent revetment pile body 10 into a whole.

[0067] Optionally, the connection portion includes a first connection portion 13 and a second connection portion 14, the first connection portion 13 and the second connection portion 14 are arranged along the length direction of the revetment pile body 10, the first connection portion 13 is arranged on one side of the outer wall 12, and the second connection portion 14 is arranged on the other side of the outer wall 12, and the first connection portion 13 and the second connection portion 14 have mutually concave and convex shapes. When a plurality of revetment pile bodies 10 are connected side by side and the upper top surfaces of the isosceles trapezoids formed by the cross-sections of adjacent revetment pile bodies 10 face opposite directions, and the inner walls 11 of adjacent revetment pile bodies 10 face opposite directions, each first connection portion 13 and the first connection portion 13 of the adjacent revetment pile body 10 have mutually concave and convex shapes, and each revetment pile body 10 can be inserted and connected with the first connection portion 13 of the adjacent revetment pile body 10 correspondingly.

[0068] Specifically, a plurality of bank protection pile bodies 10 are formed as follows Figure 2 When the adjacent revetment pile bodies 10 are connected side by side and arranged in opposite configurations as shown, the two opposite connecting parts of the adjacent revetment pile bodies 10 can be inserted and connected to each other to prevent separation, and also to achieve a better anti-leakage effect.

[0069] Example 3

[0070] like Figure 3 , Figure 7As shown, this embodiment provides a polygonal revetment pile with a three-center arc inner wall, the revetment pile includes a revetment pile body 10, the revetment pile body 10 is a column with opposite inner walls 11 and outer walls 12, the cross section of the outer wall 12 is a symmetrical polygonal profile defined by a bottom edge 121 and a plurality of side edges 122, the cross section of the inner wall 11 is a three-center arc shaped recess arranged along the bottom edge, the two ends of the three-center arc are located on the bottom edge 121, and the bottom edge 121 is sheared into two separate sections.

[0071] The three-center arc includes a first arc 111, a second arc 112 and a third arc 113 connected in sequence, one end of the first arc 111 is connected to a section of the base 121, one end of the third arc 113 is connected to another section of the base 121, the first arc 111 is inscribed in the second arc 112, the third arc 113 is inscribed in the second arc 112, and the radii of the first arc 111 and the third arc 113 are equal.

[0072] Optionally, the three-center arc is symmetrical, and the central axis of the polygonal contour coincides with the central axis of the three-center arc.

[0073] Optionally, the cross section of the outer wall 12 of the revetment pile body 10 is an isosceles trapezoid.

[0074] Specifically, the setting of the three-center arc shaped inner wall 11 makes the bank protection pile body 10 form a C shape. When the bank protection pile body 10 contacts the surrounding foundation pit, the inner side surface of the three-center arc shaped inner wall 11 can be used as a contact surface, thereby expanding the force-bearing surface of the bank protection pile body 10, and therefore has stronger bending and shear resistance.

[0075] Optionally, a plurality of revetment pile bodies 10 may be arranged in a straight line, and connecting parts are provided on both sides of the outer wall 12 of each revetment pile body 10 along the length direction of the revetment pile body 10 , and the connecting parts can connect adjacent revetment pile bodies 10 together.

[0076] Specifically, when adjacent revetment pile bodies 10 are connected by connecting parts, the corresponding connecting parts of the adjacent revetment pile bodies 10 will also fit together. In places such as riverbanks and dams, when multiple revetment pile bodies 10 are required to be compactly inserted adjacent to each other on the ground, an effective anti-leakage effect can be achieved. The protective surface 15 of the revetment pile body 10 can prevent water objects, such as passing ships, from causing damage when approaching the revetment pile body 10, and also plays an aesthetic role.

[0077] Optionally, the connection portion includes a first connection portion 13 and a second connection portion 14, the first connection portion 13 and the second connection portion 14 extend in the length direction of the revetment pile body 10, the first connection portion 13 is arranged on one side of the outer wall 12, and the second connection portion 14 is arranged on the other side of the outer wall 12, and the first connection portion 13 and the second connection portion 14 have mutually concave and convex shapes. When a plurality of revetment pile bodies 10 are connected side by side and the upper top surfaces of the isosceles trapezoids formed by the cross sections of adjacent revetment pile bodies 10 face the same side, and the inner walls 11 of adjacent revetment pile bodies 10 face the same direction, each first connection portion 13 and the second connection portion 14 of the adjacent revetment pile body 10 have mutually concave and convex shapes, and each revetment pile body 10 can be inserted and connected with each other through the first connection portion 13 and the second connection portion 14 of the adjacent revetment pile body 10.

[0078] Specifically, both sides of the revetment pile are provided with a first connecting portion 13 and a second connecting portion 14 in an arc shape, and the adjacent revetment pile bodies 10 are connected by the first connecting portion 13 and the second connecting portion 14 to prevent separation, and at the same time, a better anti-leakage effect can be achieved. The cross-section of the outer wall 12 of the revetment pile body 10 of the revetment pile is a polygonal profile. When the revetment pile is impacted by a strong water flow, it can also maintain its original state, which solves the problem that the water-facing surface of the existing revetment piles is generally a plane or an arc surface, and does not have good compression and pull-out resistance, and has strong stability.

[0079] Optionally, the symmetrical ends on both sides of the outer wall 12 of the revetment pile body 10 are provided with a first arc-shaped connecting portion 13 and a second connecting portion 14 perpendicular to the side surface, the upper top surface of the revetment pile body 10 is provided with a protective surface 15 parallel to the upper top surface, and adjacent revetment pile bodies 10 are respectively connected into a whole through the first arc-shaped connecting portion 13 and the second arc-shaped connecting portion 14.

[0080] Example 4

[0081] like Figure 4 , Figure 7 As shown, this embodiment provides a polygonal revetment pile with a three-center arc inner wall, the revetment pile includes a revetment pile body 10, the revetment pile body 10 is a column with opposite inner walls 11 and outer walls 12, the cross section of the outer wall 12 is a symmetrical polygonal profile defined by a bottom edge 121 and a plurality of side edges 122, the cross section of the inner wall 11 is a three-center arc shaped recess arranged along the bottom edge, the two ends of the three-center arc are located on the bottom edge 121, and the bottom edge 121 is sheared into two separate sections.

[0082] The three-center arc includes a first arc 111, a second arc 112 and a third arc 113 connected in sequence, one end of the first arc 111 is connected to a section of the base 121, one end of the third arc 113 is connected to another section of the base 121, the first arc 111 is inscribed in the second arc 112, the third arc 113 is inscribed in the second arc 112, and the radii of the first arc 111 and the third arc 113 are equal.

[0083] Optionally, the cross section of the outer wall 12 of the revetment pile body 10 is an isosceles trapezoid.

[0084] Optionally, the two symmetrical ends of the revetment pile body 10 are provided with a first connecting portion 13 and a second connecting portion 14 perpendicular to the bottom surface, and the upper surface of the revetment pile body 10 is provided with a protective surface 15 parallel to the bottom surface, and each revetment pile body 10 is connected to the first connecting portion 13 and the first connecting portion 13 of the adjacent revetment pile body 10 into a whole.

[0085] Optionally, the connection portion includes a first connection portion 13 and a second connection portion 14, the first connection portion 13 and the second connection portion 14 extend in the length direction of the revetment pile body 10, the first connection portion 13 is arranged on one side of the outer wall 12, and the second connection portion 14 is arranged on the other side of the outer wall 12, and the first connection portion 13 and the second connection portion 14 have mutually concave and convex shapes. When a plurality of revetment pile bodies 10 are connected side by side and the upper top surfaces of the isosceles trapezoids formed by the cross-sections of adjacent revetment pile bodies 10 face opposite directions, and the inner walls 11 of adjacent revetment pile bodies 10 face opposite directions, each first connection portion 13 and the first connection portion 13 of the adjacent revetment pile body 10 have mutually concave and convex shapes, and each revetment pile body 10 can be inserted and connected with the first connection portion 13 of the adjacent revetment pile body 10 correspondingly.

[0086] Specifically, a plurality of bank protection pile bodies 10 are formed as follows Figure 4 When the adjacent revetment pile bodies 10 are connected side by side and arranged in opposite configurations as shown, the two opposite connecting parts of the adjacent revetment pile bodies 10 can be inserted and connected to each other to prevent separation, and also to achieve a better anti-leakage effect.

[0087] like Figure 5 As shown, the polygonal profile of the cross section of the outer wall 12 of the preferred embodiment of the utility model is a polygon in a broad sense, that is, it can be a triangle 123, an arc-shaped triangle 124, an isosceles trapezoid 125, a rectangle, a pentagon, a hexagon 126 and other shapes.

[0088] like Figure 6As shown, the shapes of the connecting parts on both sides of the cross section of the preferred embodiment of the utility model can be semicircular 131, arc, rectangular 132, trapezoidal 133 and other shapes that are concave and convex to each other, or can be straight lines 134 that can fit together.

[0089] In summary, the revetment pile design of the utility model effectively overcomes the shortcomings of existing revetment piles through a number of improvement measures, and provides users with a more reliable, durable and safe revetment pile solution.

[0090] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technology in the field can make many modifications and changes according to the concept of the utility model without creative work. Therefore, any technical solution that can be obtained by a technician in the technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A polygonal bank protection pile with a three-center arc inner wall, characterized in that: It includes a revetment pile body, which is a column with relative inner and outer walls, the cross section of the outer wall is a symmetrical polygonal profile defined by a bottom edge and multiple side edges, the cross section of the inner wall is a three-center arc-shaped recess arranged along the bottom edge, the two ends of the three-center arc are located on the bottom edge, and are configured to shear the bottom edge into two separate sections.

2. The polygonal revetment pile with a three-center arc inner wall as claimed in claim 1, characterized in that: It also includes a steel frame cage, which is arranged in the revetment pile body along the length direction of the revetment pile body, and the steel frame cage includes a plurality of prestressed steel bars and a plurality of stirrups. The plurality of prestressed steel bars are arranged along the length direction of the revetment pile body, and the cross-sections of the plurality of prestressed steel bars are arranged in an isosceles trapezoidal shape; each stirrup is arranged perpendicular to the plurality of prestressed steel bars, and the plurality of stirrups are distributed at intervals along the length direction of the revetment pile body, and the plurality of stirrups are fixedly connected to the plurality of prestressed steel bars.

3. The polygonal revetment pile with a three-center arc inner wall as claimed in claim 1, characterized in that: The three-center circular arc is symmetrical, and the central axis of the polygonal contour coincides with the central axis of the three-center circular arc.

4. The polygonal revetment pile with a three-center arc inner wall as claimed in claim 3, characterized in that: The three-center arc includes a first arc, a second arc and a third arc connected in sequence, one end of the first arc is connected to a section of the base, one end of the third arc is connected to another section of the base, the first arc is inscribed in the second arc, the third arc is inscribed in the second arc, and the radii of the first arc and the third arc are equal.

5. The polygonal revetment pile with a three-center arc inner wall as claimed in claim 1, characterized in that: The revetment pile body is a plurality of revetment pile bodies arranged in a straight line, and connecting parts are arranged on both sides of the outer wall of each revetment pile body along the length direction of the revetment pile body, and the connecting parts are configured to connect adjacent revetment pile bodies together.

6. The polygonal revetment pile with a three-center arc inner wall as claimed in claim 5, characterized in that: The connection part includes a first connection part and a second connection part, the first connection part is arranged on one side of the outer wall, the second connection part is arranged on the other side of the outer wall, and the first connection part and the second connection part have mutually concave and convex shapes.

7. The polygonal revetment pile with a three-center arc inner wall as claimed in claim 6, characterized in that: The inner walls of adjacent revetment pile bodies face the same direction, and each of the first connecting portions and the second connecting portion of the adjacent revetment pile body have mutually concave-convex shapes.

8. The polygonal revetment pile with a three-center arc inner wall as claimed in claim 6, characterized in that: The inner walls of adjacent revetment pile bodies face in opposite directions, and each of the first connecting portions and the first connecting portion of the adjacent revetment pile bodies have mutually concave-convex shapes.

9. The polygonal revetment pile with a three-center arc inner wall as claimed in claim 1, characterized in that: The polygonal outline includes one of a triangle, an arc-shaped triangle, a rectangle, an isosceles trapezoid, a pentagon, and a hexagon.

10. The polygonal revetment pile with a three-center arc inner wall as claimed in claim 6, characterized in that: The mutually concave and convex shapes include one of a semicircle, an arc, a rectangle, and a trapezoid.

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