A high-strength concrete angle support pile and manufacturing method

Abstract

The present invention relates to the technical field of supporting prefabricated piles, and specifically proposes a high-strength concrete angle supporting pile and a manufacturing method, wherein the supporting pile comprises a plurality of glass fiber reinforced bars, a plurality of prestressed steel bars, a plurality of stirrups, a pull-down tensioning unit and two end fixing units. The present invention forms a high-strength angle supporting net by assembling a plurality of glass fiber reinforced bars, a plurality of prestressed steel bars, a plurality of stirrups, a pull-down tensioning unit and two end fixing units. The high-strength angle supporting net and the concrete angle supporting pile obtained after pouring concrete therein both present a triangular stable structure, which greatly improves the bending resistance and safety stability of the concrete angle supporting pile, and the glass fiber reinforced bars with high tensile strength and the prestressed steel bars cooperate with each other to strengthen the corrosion resistance and tensile strength of the pile body steel bars, which greatly improves the safety, reliability and durability of the high-strength concrete angle supporting pile.

Description

Technical Field

[0001] The invention relates to the technical field of prefabricated support piles, and specifically proposes a high-strength concrete angle support pile and a manufacturing method thereof. Background Art

[0002] Pre-tensioned prestressed high-strength concrete angle piles. This type of support prefabricated pile product is often used in river channels, foundation pits and slope projects. Most of them are used in river water or excavated groundwater environments. The construction equipment and process of this type of piles are high-frequency vibration or hammer construction, which causes damage and cracks to the pile body to a certain extent, and increases the corrosion resistance test of ordinary steel bars. As a result, the following problems exist in the current use of high-strength concrete angle support piles: 1. In the existing technology, most of the reinforcement of prefabricated support piles is based on ordinary steel bars and prestressed steel bars. The tensile strength difference between prestressed steel bars and ordinary threaded steel bars is large, and it is difficult to form a synergistic effect. Therefore, the durability, mechanical strength and safety of the support piles need to be improved.

[0003] 2. In the prior art, the reinforcing bars in the mixed reinforcement are ordinary steel bars, which have weak tensile strength and corrosion resistance. Although the concrete protective layer plays a certain protective role, the support pile construction method will have a destructive effect on the pile body, so there is a safety hazard of rusted steel bars. Summary of the invention

[0004] In view of the above problems, the embodiments of the present application provide a high-strength concrete angle support pile and a manufacturing method to solve the technical problems in the related art.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the present application provides the following technical solution: a high-strength concrete angle support pile, including multiple glass fiber reinforced bars, multiple prestressed steel bars, multiple stirrups, a pull-down tensioning unit and two end fixing units.

[0006] Each of the end fixing units includes an angle support frame formed by connecting the lower ends of two angle support plates. The angle support plate is a triangular structure with a concave arc in the middle. The angle support plate is evenly provided with mounting holes arranged in an inverted V shape, and a unified locking group is installed between the two angle support plates.

[0007] A plurality of glass fiber reinforced bars and a plurality of prestressed steel bars are evenly arranged at intervals and pass through the mounting holes in the two end fixing units. The glass fiber reinforced bars are located between two adjacent prestressed steel bars. A plurality of stirrups are evenly arranged along the length direction of the glass fiber reinforced bars and are hooped on the glass fiber reinforced bars and the prestressed steel bars in an inverted V shape. The glass fiber reinforced bars and the prestressed steel bars are axially tensioned and fixed on the two angle support frames by cooperating with the existing hydraulic jack and the unified locking group.

[0008] The pull-down tensioning unit is installed between two angle support frames. On the basis of axially tensioning and fixing the glass fiber reinforced bars and the prestressed steel bars by a unified locking group, the pull-down tensioning unit is used to pull down and tension the two ends of the stirrups and the prestressed steel bars connected to the ends of the stirrups.

[0009] A plurality of glass fiber reinforced bars, a plurality of prestressed steel rods, a plurality of stirrups, a pull-down tensioning unit and two end fixing units are assembled to form a high-strength angle support net. The high-strength angle support net is prepared into high-strength concrete angle support piles through pouring concrete, vibration compaction, and solidification and maintenance.

[0010] In one possible implementation, the unified locking group includes a connecting plate, which is slidably connected between two angle support plates of the angle support frame, and the shape of the connecting plate is the same as that of the angle support frame. A mounting hole corresponding to the angle support plate is provided on the connecting plate, and a locking piece which is concentric with the mounting hole and is in the shape of a cone and a tube is installed on the side of the connecting plate close to the stirrups. A conical hole which cooperates with the locking piece and is concentric with and connected to the mounting hole is provided on the side wall of the angle support plate close to the locking piece. The conical structure of the locking piece has a small diameter facing the conical hole, and the conical part of the locking piece is composed of multi-petal conical blocks evenly arranged along the circumference of the corresponding mounting hole. A locking assembly is provided on the angle support frame, and the locking assembly is used to lock the position of the connecting plate after the locking piece is inserted into the conical hole to lock and fix the glass fiber reinforced ribs or prestressed steel rods.

[0011] In one possible implementation, the locking assembly includes three wedge blocks, and three inclined surfaces are provided on the side of the connecting plate away from the stirrups. The three inclined surfaces are arranged in a triangle and are respectively provided on the top of the connecting plate and the two ends of the bottom. The three wedge blocks are respectively tightly fitted with the three inclined surfaces and the two angle support plates are locked and connected with the connecting plate and wedge blocks therebetween by bolts.

[0012] In a possible implementation, a limiting strip is installed on a side of the wedge-shaped block away from the connecting plate, and a limiting groove that is plugged into and fits with the corresponding limiting strip is provided on an angle support plate adjacent to the limiting strip.

[0013] In one possible implementation, the pull-down tensioning unit includes two rectangular bars, which are slidably connected between two angle support frames up and down, thereby locking the distance between the two angle support frames and avoiding axial bending of multiple glass fiber reinforced bars and multiple prestressed steel rods after locking. The angle support frames are provided with sliding grooves that slide with the rectangular bars. Pull plates that are evenly arranged along their length and correspond one to one with the stirrups are installed on the top of the rectangular bars. Through holes are provided on the pull plates, and the prestressed steel rods connected to both ends of the stirrups pass through the through holes. A pressure tensioning group that slides down to press the pull plates is installed in the sliding groove.

[0014] In one possible implementation, the pressure tensioning group includes a push block horizontally slidably connected in a slide groove, the opposing surfaces of the push block and the rectangular strip are matching inclined surfaces, a wedge strip is installed on a wedge block matching the inclined surfaces on both ends of the bottom of the connecting plate, and after the push block slides through the end of the connecting plate, it presents a wedge-shaped surface matching the wedge strip.

[0015] The present invention also provides a method for manufacturing high-strength concrete angle support piles, comprising the following steps: S1. Plug-in assembly: a plurality of glass fiber reinforced bars and a plurality of prestressed steel bars are evenly arranged at intervals through the mounting holes in the two end fixing units, the glass fiber reinforced bars are located between two adjacent prestressed steel bars, and then a plurality of stirrups are evenly arranged along the length direction of the glass fiber reinforced bars and are hooped onto the glass fiber reinforced bars and the prestressed steel bars in an inverted V shape.

[0016] S2. Axial tensioning: The glass fiber reinforced ribs and prestressed steel bars are axially tensioned by cooperating with the existing hydraulic jack and the unified locking group, and the glass fiber reinforced ribs or prestressed steel bars are clamped and fixed on the two angle support frames by multiple conical blocks on the locking parts.

[0017] S3. Pull-down locking: On the basis of the unified locking group axially tensioning and fixing the glass fiber reinforced bar and the prestressed steel rod, the two ends of the stirrup and the prestressed steel rod connected to the end of the stirrup are pulled down and tensioned through the pull-down tensioning unit in coordination with the unified locking group. At the same time, the unified locking group also locks the position of the connecting plate.

[0018] S4. Casting and forming: A mold with the same inner wall and angle support frame structure is matched with two angle support frames to seal the space between the angle support frames, and then concrete is poured into the mold and vibrated to compact it. After solidification and curing, high-strength concrete angle support piles are obtained.

[0019] The above one or more technical solutions in the embodiments of the present invention have at least one of the following beneficial effects: 1. The high-strength concrete angle support pile designed by the present invention is triangular in shape, thereby improving the bending strength of the concrete angle support pile, and in the concrete angle support pile, a plurality of glass fiber reinforced bars and a plurality of prestressed steel bars are evenly arranged at intervals and are hooped by stirrups to form a high-strength angle support net, so that the glass fiber reinforced bars with high tensile strength and the prestressed steel bars work together to strengthen the corrosion resistance and tensile strength of the pile body steel bars, thereby greatly improving the safety, reliability and durability of the high-strength concrete angle support pile.

[0020] 2. In the present invention, based on the unified locking group for axially tensioning and pressing the glass fiber reinforced bars and the prestressed steel rods, the two ends of the stirrups and the prestressed steel rods connected to the ends of the stirrups are pulled down and tensioned by a downward tensioning unit, thereby further providing additional pre-compression stress to the glass fiber reinforced bars and the prestressed steel rods, thereby improving the overall stability of the structure.

[0021] 3. In the present invention, the connecting plate drives the multiple locking pieces thereon to move simultaneously, so that the multiple conical blocks on the locking pieces clamp and fix the glass fiber reinforced bars or prestressed steel bars, thereby axially locking the multiple glass fiber reinforced bars and the multiple prestressed steel bars after being straightened, avoiding the cumbersomeness of locking the ends of the multiple glass fiber reinforced bars and the multiple prestressed steel bars, and at the same time improving the integrity of the locking of the ends of the multiple glass fiber reinforced bars and the multiple prestressed steel bars.

[0022] 4. In the present invention, multiple glass fiber reinforced bars, multiple prestressed steel bars, multiple stirrups, a pull-down tensioning unit and two end fixing units are assembled to form a high-strength angle support net. The high-strength angle support net and the concrete angle support piles obtained after pouring concrete are both triangular stable structures, which greatly improves the bending resistance and safety stability of the concrete angle support piles. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0024] Figure 1 It is a step diagram of the method for making concrete angle support piles of the present invention.

[0025] Figure 2 It is a three-dimensional structural schematic diagram of step 1 of the method for making concrete angle supporting piles of the present invention.

[0026] Figure 3 It is a schematic diagram of the first partial three-dimensional structure of the unified locking group of the present invention.

[0027] Figure 4 It is a second partial three-dimensional structural schematic diagram of the unified locking group of the present invention.

[0028] Figure 5 It is a three-dimensional structural schematic diagram of step 2-step 3 of the method for making concrete angle support piles of the present invention.

[0029] Figure 6 It is a three-dimensional structural cross-sectional view of the unified locking group of the present invention when locking and fixing the glass fiber reinforced ribs and the prestressed steel rods.

[0030] Figure 7 It is a right sectional structural schematic diagram of the high-strength angular support net of the present invention.

[0031] Figure 8 It is a top partial cross-sectional view of the unified locking group of the present invention when it cooperates with the pull-down tensioning unit.

[0032] Fig. 9 It is a partial cross-sectional view of the main view of the unified locking group of the present invention when fixing the glass fiber reinforced ribs and the prestressed steel rods.

[0033] Fig.10 It is a three-dimensional structural schematic diagram of the high-strength angle support net of the present invention when cooperating with a mold to cast concrete.

[0034] Fig.11 It is a schematic diagram of the three-dimensional structure of the concrete angle supporting pile of the present invention.

[0035] Figure numerals: 1. Glass fiber reinforced ribs; 2. Prestressed steel rods; 3. Hoops; 4. Pull-down tensioning unit; 40. Rectangular strip; 41. Slide groove; 42. Pressure tensioning group; 420. Push block; 421. Wedge strip; 43. Pull plate; 5. End fixing unit; 50. Angle support frame; 501. Angle support plate; 51. Mounting hole; 52. Unified locking group; 520. Connecting plate; 521. Locking piece; 522. Wedge block; 530. Limiting strip. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] See also Figure 2 A high-strength concrete angle supporting pile comprises a plurality of glass fiber reinforced bars 1, a plurality of prestressed steel bars 2, a plurality of stirrups 3, a pull-down tensioning unit 4 and two end fixing units 5.

[0039] See also Figure 2 and Figure 6Each of the end fixing units 5 includes an angle support frame 50 formed by connecting the lower ends of two angle support plates 501. The angle support plate 501 is a triangular structure with a concave arc in the middle. The angle support plate 501 is evenly provided with mounting holes 51 arranged in an inverted V shape. A unified locking group 52 is installed between the two angle support plates 501.

[0040] See also Figure 2 and Figure 5 , multiple glass fiber reinforced bars 1 and multiple prestressed steel bars 2 are evenly arranged at intervals and pass through the installation holes 51 in the two end fixing units 5, the glass fiber reinforced bars 1 are located between two adjacent prestressed steel bars 2, and multiple stirrups 3 are evenly arranged along the length direction of the glass fiber reinforced bars 1 and are hooped on the glass fiber reinforced bars 1 and the prestressed steel bars 2 in an inverted V shape. Through the existing hydraulic jack and the unified locking group 52, the glass fiber reinforced bars 1 and the prestressed steel bars 2 are axially tensioned and fixed on the two angle support frames 50, thereby providing additional pre-compression stress to the glass fiber reinforced bars 1 and the prestressed steel bars 2, thereby enhancing the shear strength of the concrete angle support piles after forming, reducing the occurrence of oblique cracks, and improving the overall stability of the structure.

[0041] See also Figure 2 and Figure 5 The pull-down tensioning unit 4 is installed between the two angle support frames 50. On the basis of the unified locking group 52 axially tensioning and fixing the glass fiber reinforced bar 1 and the prestressed steel rod 2, the pull-down tensioning unit 4 is used to pull down and tension the two ends of the stirrup 3 and the prestressed steel rod 2 connected to the end of the stirrup 3, further providing additional prestressing stress to the glass fiber reinforced bar 1 and the prestressed steel rod 2, thereby improving the overall stability of the structure.

[0042] See also Figure 2 and Fig.10 A plurality of glass fiber reinforced bars 1, a plurality of prestressed steel bars 2, a plurality of stirrups 3, a pull-down tensioning unit 4 and two end fixing units 5 are assembled to form a high-strength angle support net. The high-strength angle support net is prepared by pouring concrete, vibrating and compacting, and curing to obtain a high-strength concrete angle support pile (such as Fig.11 shown).

[0043] The glass fiber reinforced ribs 1 and prestressed steel rods 2 inside the high-strength concrete angle support piles are evenly spaced. The glass fiber reinforced ribs 1 can not only improve the corrosion resistance of the high-strength concrete angle support piles, reduce the risk of steel corrosion, and extend the service life, but also have a higher bonding strength with the concrete and a stronger grip, and can work together to ensure the integrity of the high-strength concrete angle support pile structure. In addition, the glass fiber reinforced ribs are light in weight, which effectively reduces the weight of the high-strength concrete angle support piles and reduces transportation and installation costs. At the same time, the high-strength concrete angle support piles are triangular in shape, which greatly improves their mechanical properties, safety and reliability.

[0044] See also Figure 2 , Figure 3 , Figure 4 and Fig. 9 The unified locking group 52 includes a connecting plate 520, which is slidably connected between the two angle support plates 501 of the angle support frame 50, and the connecting plate 520 has the same shape as the angle support frame 50, and a mounting hole 51 corresponding to the angle support plate 501 is opened on the connecting plate 520, and a conical cylindrical plug lock 521 concentric with the mounting hole 51 is installed on the side of the connecting plate 520 close to the stirrup 3, and the angle support plate 501 close to the plug lock 521 is A conical hole matching with the latch 521 and being concentric with and connected to the mounting hole 51 is provided on the side wall of 01. The small diameter of the conical structure of the latch 521 faces the conical hole, and the conical portion of the latch 521 is composed of multi-petal conical blocks uniformly arranged along the circumference of the corresponding mounting hole 51. A locking assembly is provided on the angle support frame 50. After the latch 521 is inserted into the conical hole to lock and fix the glass fiber reinforced rib 1 or the prestressed steel rod 2, the locking assembly locks the position of the connecting plate 520.

[0045] After the glass fiber reinforced bar 1 or the prestressed steel bar 2 passes through the installation hole 51, one end of the existing hydraulic jack drives the external frame to enter between the connecting plate 520 and the angle support plate 501 away from the side of the stirrup, and then pushes the connecting plate 520 to drive the locking piece 521 to move toward the tapered hole. The other end of the hydraulic jack cooperates with the existing steel bar pulling equipment to pull the ends of the glass fiber reinforced bar 1 and the prestressed steel bar 2, so that the glass fiber reinforced bar 1 and the prestressed steel bar 2 are straightened along the axial direction, and the connecting plate 520 drives the locking piece 521 to move, and the locking piece 521 is locked. When 21 enters the tapered hole, the tapered block of the locking piece 521 moves toward the side wall of the glass fiber reinforced rib 1 or the prestressed steel rod 2 under the blocking force of the tapered hole, until the multiple tapered blocks on the locking piece 521 clamp and fix the glass fiber reinforced rib 1 or the prestressed steel rod 2, thereby uniformly locking the multiple straightened glass fiber reinforced ribs 1 and the multiple prestressed steel rods 2, avoiding the tediousness of locking the ends of the multiple glass fiber reinforced ribs 1 and the multiple prestressed steel rods 2 one by one, and at the same time improving the integrity of the locking of the ends of the multiple glass fiber reinforced ribs 1 and the multiple prestressed steel rods 2.

[0046] See also Figure 4 , Figure 5 , Figure 6 , Figure 8 and Fig. 9 The locking assembly includes three wedge blocks 522. Three inclined surfaces are arranged on the side of the connecting plate 520 away from the stirrup 3. The three inclined surfaces are arranged in a triangle and are respectively arranged at the top and bottom ends of the connecting plate 520. The three wedge blocks 522 are respectively tightly matched with the three inclined surfaces and the two angle support plates 501 are locked and connected with the connecting plate 520 and the wedge blocks 522 therebetween by bolts.

[0047] See also Figure 8 and Fig. 9 A limiting strip 530 is installed on the side of the wedge block 522 away from the connecting plate 520 , and a limiting groove which is plugged and matched with the corresponding limiting strip 530 is opened on the angle support plate 501 adjacent to the limiting strip 530 .

[0048] After the straightened glass fiber reinforced ribs 1 are axially locked with the prestressed steel rods 2, the three wedge blocks 522 are respectively tightly matched with the three inclined surfaces of the connecting plate 520, and the two angle support plates 501 are locked and connected with the connecting plate 520 and the wedge blocks 522 therebetween by bolts. The limiting strips 530 on the wedge blocks 522 cooperate with the corresponding limiting grooves to limit the wedge blocks 522, thereby further improving the stability and firmness of the tight connection of the wedge blocks 522 to the connecting plates 520.

[0049] See also Figure 2 , Figure 3 , Figure 5 and Figure 7 The pull-down tensioning unit 4 includes two rectangular bars 40, which are slidably connected between the two angular support frames 50, thereby locking the distance between the two angular support frames 50 to avoid axial bending of the multiple glass fiber reinforced bars 1 and the multiple prestressed steel bars 2 after locking. The angular support frames 50 are provided with a slide groove 41 that slides with the rectangular bar 40. The top of the rectangular bar 40 is equipped with a pull plate 43 that is evenly arranged along its length direction and corresponds to the stirrups 3 one by one. The pull plate 43 is provided with a through hole, and the prestressed steel bars 2 connected to the two ends of the stirrups 3 pass through the through hole. A pressure tensioning group 42 that slides down and presses the pull plate 43 is installed in the slide groove 41.

[0050] See also Figure 2 , Figure 3 , Figure 5 and Figure 8 The pressing and tensioning group 42 includes a pushing block 420 horizontally slidably connected in the slide groove 41. The opposite surfaces of the pushing block 420 and the rectangular strip 40 are matching inclined surfaces. A wedge strip 421 is installed on the wedge block 522 matching the inclined surfaces at both ends of the bottom of the connecting plate 520. The end of the pushing block 420 sliding through the connecting plate 520 presents a wedge-shaped surface matching the wedge strip 421.

[0051] After the axially straightened multiple glass fiber reinforced ribs 1 and multiple prestressed steel rods 2 are locked at the ends by the locking piece 521, when the locking assembly locks the position of the connecting plate 520, the wedge block 522 that is plugged into the inclined surface at both ends of the bottom of the connecting plate 520 drives the limiting strip 530 to insert into the limiting groove, and the wedge block 522 drives the wedge strip 421 to enter between the connecting plate 520 and the angle support plate 501, and the wedge surface of the wedge strip 421 abuts against the wedge surface of the push block 420. When the wedge-shaped bar 421 contacts the inclined surface of the rectangular bar 40, the wedge-shaped bar 421 squeezes the push block 420 and moves it along the slide groove 41 toward the end of the rectangular bar 40. When the inclined surface of the push block 420 contacts the inclined surface of the rectangular bar 40, the push block 420 squeezes the rectangular bar 40 and moves downward, so that the rectangular bar 40 pulls down the two ends of the stirrup 3 through the pull plate 43 and tensions the prestressed steel rod 2 connected to the end of the stirrup 3, further providing additional prestressing stress to the glass fiber reinforced bar 1 and the prestressed steel rod 2, thereby improving the overall stability of the structure.

[0052] See also Figure 1-Figure 11 The present invention also provides a method for manufacturing high-strength concrete angle support piles, comprising the following steps: S1. Insertion and sleeve assembly: a plurality of glass fiber reinforced bars 1 and a plurality of prestressed steel bars 2 are evenly arranged at intervals through the mounting holes 51 in the two end fixing units 5, and the glass fiber reinforced bars 1 are located between two adjacent prestressed steel bars 2, and then a plurality of stirrups 3 are evenly arranged along the length direction of the glass fiber reinforced bars 1 and are hooped on the glass fiber reinforced bars 1 and the prestressed steel bars 2 in an inverted V shape.

[0053] S2. Axial tensioning: The glass fiber reinforced ribs 1 and the prestressed steel rods 2 are axially tensioned by cooperating with the existing hydraulic jack and the unified locking group 52, and the glass fiber reinforced ribs 1 or the prestressed steel rods 2 are clamped and fixed on the two angle support frames 50 by multiple conical blocks on the locking piece 521.

[0054] S3. Pull down and lock: On the basis of the unified locking group 52 axially tensioning and fixing the glass fiber reinforced bar 1 and the prestressed steel rod 2, the two ends of the stirrup 3 and the prestressed steel rod 2 connected to the end of the stirrup 3 are pulled down and tensioned by cooperating with the unified locking group 52 through the pull-down tensioning unit 4. At the same time, the unified locking group 52 also locks the position of the connecting plate 520.

[0055] S4. Casting and forming: A mold having the same structure as the inner wall and the angle support frame 50 is matched with the two angle support frames 50 to seal the space between the angle support frames 50, and then concrete is poured into the mold and vibrated to compact it, and then cured and cured to obtain high-strength concrete angle support piles.

[0056] In the description of the present invention, it is necessary to understand that the terms "length", "width", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "circumferential" 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, rather than indicating or implying 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.

[0057] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-strength concrete angle support pile, characterized in that: It includes a plurality of glass fiber reinforced bars, a plurality of prestressed steel bars, a plurality of stirrups, a pull-down tensioning unit, and two end fixing units; The end fixing unit comprises an angle support frame formed by connecting the lower ends of two angle support plates, the angle support plate is a triangular structure with a concave arc in the middle, and mounting holes arranged in an inverted V shape are evenly opened on the angle support plate, and a unified locking group is installed between the two angle support plates; A plurality of glass fiber reinforced bars and a plurality of prestressed steel bars are arranged evenly at intervals through the mounting holes in the two end fixing units, the glass fiber reinforced bars are located between two adjacent prestressed steel bars, a plurality of stirrups are evenly arranged along the length direction of the glass fiber reinforced bars and are hooped on the glass fiber reinforced bars and the prestressed steel bars in an inverted V shape, and a unified locking group axially tensions the glass fiber reinforced bars and the prestressed steel bars and fixes them on the two angle support frames; The pull-down tensioning unit is installed between two angle support frames. On the basis of the unified locking group to axially tension and fix the glass fiber reinforced bar and the prestressed steel rod, the pull-down tensioning unit is used to pull down and tension the two ends of the stirrup and the prestressed steel rod connected to the end of the stirrup; A plurality of glass fiber reinforced bars, a plurality of prestressed steel bars, a plurality of stirrups, a pull-down tensioning unit and two end fixing units are assembled to form a high-strength angle support net, and the high-strength angle support net is prepared into a high-strength concrete angle support pile through pouring concrete, vibration compaction, and curing and curing; The unified locking group includes a connecting plate, which is slidably connected between two angle support plates of the angle support frame, and the shape of the connecting plate is the same as that of the angle support frame, and a mounting hole corresponding to the angle support plate is provided on the connecting plate, and a plug lock piece which is concentric with the mounting hole and is in a conical cylindrical shape is installed on the side of the connecting plate close to the stirrup, and a conical hole which is matched with the plug lock piece and is concentric with and connected to the mounting hole is provided on the side wall of the angle support plate close to the plug lock piece, and the conical structure of the plug lock piece has a small diameter facing the conical hole, and the conical part of the plug lock piece is composed of multi-petal conical blocks uniformly arranged along the circumference of the corresponding mounting hole, and a locking assembly is provided on the angle support frame, and the locking assembly is used to lock the position of the connecting plate after the plug lock piece is inserted into the conical hole to lock and fix the glass fiber reinforced rib or prestressed steel rod; The pull-down tensioning unit includes two rectangular bars, which are slidably connected between two angle support frames. The angle support frames are provided with sliding grooves that slide with the rectangular bars. The tops of the rectangular bars are equipped with pull plates that are evenly arranged along their length and correspond one to one with the stirrups. The pull plates are provided with through holes, and prestressed steel rods connected to both ends of the stirrups pass through the through holes. A pressure tensioning group that slides down to press the pull plates is installed in the sliding groove.

2. According to claim 1, a high-strength concrete angle support pile is characterized in that: The locking assembly includes three wedge blocks. Three inclined surfaces are arranged on the side of the connecting plate away from the stirrups. The three inclined surfaces are arranged in a triangle and are respectively arranged at the top and bottom ends of the connecting plate. The three wedge blocks are respectively tightly matched with the three inclined surfaces and the two angle support plates are locked and connected with the connecting plate and wedge blocks therebetween by bolts.

3. According to claim 1, a high-strength concrete angle support pile is characterized in that: The pressure tensioning group includes a push block horizontally slidably connected in the slide groove, the opposite surfaces of the push block and the rectangular strip are matching inclined surfaces, a wedge strip is installed on the wedge block matching the inclined surfaces on the two ends of the bottom of the connecting plate, and the push block slides through the end of the connecting plate to present a wedge-shaped surface matching the wedge strip.

4. According to claim 2, a high-strength concrete angle support pile is characterized in that: A limiting strip is installed on one side of the wedge-shaped block away from the connecting plate, and a limiting groove which is plugged and matched with the corresponding limiting strip is provided on the angle support plate adjacent to the limiting strip.

5. A method for manufacturing a high-strength concrete angle support pile, used for manufacturing a high-strength concrete angle support pile as claimed in claim 1, characterized in that: The following steps are involved: S1. Plug-in assembly: Multiple glass fiber reinforced bars and multiple prestressed steel bars are evenly arranged at intervals through the mounting holes in the two end fixing units, and the glass fiber reinforced bars are located between two adjacent prestressed steel bars. Then, multiple stirrups are evenly arranged along the length direction of the glass fiber reinforced bars and are hooped on the glass fiber reinforced bars and prestressed steel bars in an inverted V shape; S2. Axial tensioning: The glass fiber reinforced ribs and prestressed steel bars are axially tensioned and fixed on two angle support frames by using the existing hydraulic jack and the unified locking group; S3. Pull down and lock: Pull down and tighten the two ends of the stirrup and the prestressed steel rod connected to the end of the stirrup by cooperating with the pull-down tensioning unit and the unified locking group; S4. Casting and forming: A mold with the same inner wall and angle support frame structure is matched with two angle support frames to seal the space between the angle support frames, and then concrete is poured into the mold and vibrated to compact it. After solidification and curing, high-strength concrete angle support piles are obtained.

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