Gravel wrapped pile

Abstract

The utility model relates to the technical field of building foundation reinforcement, in particular to a gravel wrapped pile which comprises a gravel wrapped pile body, the gravel wrapped pile body comprises a plurality of steel reinforcement frameworks and gravel layers filled inside the steel reinforcement frameworks, connecting assemblies are arranged between the steel reinforcement frameworks, and the steel reinforcement frameworks comprise vertical steel reinforcements. Transverse ring ribs are fixedly welded to the outer rings of the vertical steel bars, and threaded heads are arranged at the two ends of the vertical steel bars. The connecting assembly comprises a connecting cylinder, and a lower thread and an upper thread are formed in the inner side of the connecting cylinder. The steel reinforcement framework is additionally arranged on the outer side of the gravel layer, the overall shear strength of the pile body is enhanced, the gravel layer in the pile body has good compression resistance, then the strength of the whole pile body is greatly improved, meanwhile, rapid splicing of the steel reinforcement framework is achieved through the arranged connecting assemblies, the framework of the whole pile body is spliced in a modularized mode, and the construction cost is reduced. And meanwhile, the construction period can be greatly shortened through pre-production, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building foundation reinforcement, in particular to a gravel-wrapped pile. Background Art

[0002] Gravel-wrapped piles are a foundation reinforcement technology primarily used to improve the bearing capacity and stability of soil. They create a pile-like structure by inserting a series of cylindrical holes filled with crushed stone into the soil, thereby improving the soil's mechanical properties. Gravel-wrapped piles are widely used in civil engineering due to their ease of construction, low cost, and significant effectiveness.

[0003] In the existing technology, the construction of gravel-wrapped piles mainly includes the following steps: drilling, cleaning the hole, laying the pipe, filling with stone, pulling out the pipe, compaction testing, backfilling and leveling. After the gravel-wrapped pile is finally constructed, the gravel layer in the main structure is combined with the inner soil layer of the foundation to improve the bearing capacity of the foundation. At that time, since the main structure of the gravel-wrapped pile after the final construction was completed only had a gravel layer, the shear resistance of the gravel pile body was poor. When responding to natural disasters such as earthquakes and landslides, its strength defects would be reflected. In order to improve the overall performance of the gravel-wrapped pile, we proposed a gravel-wrapped pile. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a gravel-wrapped pile.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A gravel-wrapped pile includes a gravel-wrapped pile, the gravel-wrapped pile includes a plurality of steel frame and a gravel layer filled inside the steel frame, a connecting assembly is arranged between the steel frame, the steel frame includes vertical steel bars, the outer ring of the vertical steel bars is fixedly welded with a transverse ring bar, and both ends of the vertical steel bars are provided with threaded heads; the connecting assembly includes a connecting cylinder, the inner side of the connecting cylinder is provided with a lower thread and an upper thread, and the lower side of the lower thread and the upper side of the upper thread are both provided with an extension area.

[0007] Preferably, a bottom component is provided at the bottom of the steel frame, and the bottom component includes an internal threaded barrel, and the internal threaded barrel is threadedly installed on the threaded head.

[0008] Preferably, the bottom of the internally threaded barrel is fixedly connected to a base, and anchoring grooves are evenly distributed on the side walls of the base.

[0009] Preferably, the extended area is a smooth interval.

[0010] Preferably, the transverse ring reinforcement is evenly distributed along the vertical reinforcement.

[0011] Preferably, the lower thread and the upper thread are symmetrically arranged, and both the lower thread and the upper thread are adapted to the thread head.

[0012] Preferably, a plurality of stiffening ribs are fixedly connected to the outer side of the connecting cylinder, and a hexagonal connecting ring is fixedly connected to the outer side of the stiffening rib.

[0013] Preferably, a circular hole is provided on the hexagonal connecting ring.

[0014] Compared with the related art, the gravel-wrapped pile proposed in this utility model has the following beneficial effects:

[0015] The invention provides a crushed stone wrapped pile, which is consistent with the traditional bored cast-in-place pile, by setting a steel frame. The steel frame is added to the outside of the crushed stone layer. The setting of the steel frame can enhance the overall shear strength of the pile body. At the same time, the steel frame adopts a combination of vertical steel bars and transverse ring bars to ensure the overall strength of the steel frame. At the same time, the steel frame of the entire pile body adopts a modular assembly arrangement, so that the total frame length that is suitable can be assembled according to the on-site designed pile length. The key component for realizing the modular assembly of the steel frame is the connecting component proposed in the invention. The inner side of the connecting cylinder in the connecting component adopts a symmetrical thread arrangement. During assembly, by rotating the connecting cylinder, the threaded head of the end of the vertical steel bar can be driven to be screwed into the inner side of the connecting cylinder, thereby realizing high-strength screw connection of the vertical steel bars between the upper and lower steel frames. The connection method is reliable and the assembly is fast, which greatly saves construction time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a gravel-wrapped pile proposed in this utility model Figure 1 ;

[0017] Figure 2 Schematic diagram of the three-dimensional structure of the steel frame;

[0018] Figure 3 Schematic diagram of the three-dimensional structure of the bottom component;

[0019] Figure 4 Schematic diagram of the three-dimensional structure of the connection components;

[0020] Figure 5 is a schematic diagram of a three-dimensional cross-section structure of a connection component;

[0021] Figure 6 A top view of the connected components.

[0022] In the figure: 1. Steel bar skeleton; 11. Vertical steel bars; 12. Horizontal ring bars; 13. Threaded head; 2. Bottom assembly; 21. Internally threaded cylinder; 22. Base; 23. Anchor groove; 3. Connection assembly; 31. Connecting cylinder; 32. Lower thread; 33. Upper thread; 34. Extension area; 35. Stiffening rib plate; 36. Hexagonal connecting ring; 37. Round hole. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0024] Reference Figure 1-6 , please refer to Figures 1-6 ,in, Figure 1 A schematic diagram of the three-dimensional structure of a gravel-wrapped pile proposed in this utility model Figure 1 ; Figure 2 Schematic diagram of the three-dimensional structure of the steel frame; Figure 3 Schematic diagram of the three-dimensional structure of the bottom component; Figure 4 Schematic diagram of the three-dimensional structure of the connection components; Figure 5 is a schematic diagram of a three-dimensional cross-section structure of a connection component; Figure 6 A gravel-wrapped pile includes a plurality of steel skeletons 1 and a gravel layer filled inside the steel skeletons 1. A connection assembly 3 is provided between the steel skeletons 1. The steel skeletons 1 include vertical steel bars 11, with transverse ring bars 12 fixedly welded to the outer ring of the vertical steel bars 11. The vertical steel bars 11 have threaded ends 13 at both ends.

[0025] By the above-mentioned arrangement, a steel skeleton 1 is arranged outside the gravel layer, and the gravel layer has good compressive resistance. The combination of the vertical steel bars 11 and the transverse ring bars 12 in the steel skeleton 1 makes the steel skeleton 1 have good shear resistance. Therefore, under the combination of the two, the entire pile body can withstand pressure while also having a certain shear resistance, thereby improving the overall strength of the pile body.

[0026] In this method, the connecting component 3 includes a connecting cylinder 31, and a lower thread 32 and an upper thread 33 are provided on the inner side of the connecting cylinder 31. An extension area 34 is provided on the lower side of the lower thread 32 and the upper side of the upper thread 33. The lower thread 32 and the upper thread 33 are symmetrically arranged, and the lower thread 32 and the upper thread 33 are both adapted to the thread head 13.

[0027] Through the above-mentioned arrangement, the lower thread 32 and the upper thread 33 are both adapted to the thread head 13, and the thread head 13 at the end of the vertical steel bars 11 in the two steel skeletons 1 is inserted into the connecting cylinder 31. Rotating the connecting cylinder 31 can make the thread head 13 engage with the thread in the connecting cylinder 31, thereby realizing effective fixed screw connection between the vertical steel bars 11, and thus completing the assembly between the steel skeletons 1.

[0028] In this method, a bottom component 2 is provided at the bottom of the steel frame 1, and the bottom component 2 includes an internal threaded tube 21, which is screwed onto the threaded head 13, and a base 22 is fixedly connected to the bottom of the internal threaded tube 21, and anchor grooves 23 are evenly distributed on the side walls of the base 22.

[0029] Through the above-mentioned arrangement, the bottom component 2 provides support for the bottom of the steel frame 1. At the same time, anchor grooves 23 are evenly distributed on the side walls of the base 22. After the base 22 is combined with the soil in the foundation, a certain anchoring effect can be formed between the base 22 and the soil.

[0030] In this embodiment, the transverse ring reinforcement 12 is evenly distributed along the vertical reinforcement 11 .

[0031] By the above arrangement, the transverse ring reinforcements 12 are evenly distributed along the vertical reinforcements 11 , thereby enhancing the overall strength of the reinforcement skeleton 1 .

[0032] In this embodiment, the extended area 34 is a smooth area.

[0033] By the above-mentioned arrangement, the extension area 34 is set as a smooth area, which provides a guiding effect on the thread head 13, and guides the thread head 13 into the inner side of the connecting cylinder 31 first, so as to facilitate the subsequent rotation and screw connection operation.

[0034] In this embodiment, a plurality of stiffening ribs 35 are fixedly connected to the outer side of the connecting cylinder 31 , and a hexagonal connecting ring 36 is fixedly connected to the outer side of the stiffening ribs 35 .

[0035] Through the above-mentioned arrangement, the arrangement of the stiffening ribs 35 strengthens the overall strength of the connecting cylinder 31 and ensures the strength of the splicing points between the steel skeletons 1. In addition, the arrangement of the hexagonal connecting ring 36 allows the side of the hexagonal connecting ring 36 to be clamped with the help of a hexagonal wrench during the assembly process, thereby facilitating the rotation of the connecting cylinder 31.

[0036] In this embodiment, a circular hole 37 is formed on the hexagonal connecting ring 36 .

[0037] With the above arrangement, the hexagonal connecting ring 36 is provided with a circular hole 37 , so that when the connecting cylinder 31 is rotated, the circular rod can be inserted into the circular hole 37 , and then the circular rod can be pulled to drive the connecting cylinder 31 to rotate.

[0038] The working principle of the gravel-wrapped pile provided by the utility model is as follows:

[0039] When in use, after the on-site drilling and hole cleaning work is completed, according to the designed length of the entire pile body, the threaded heads 13 of the ends of the vertical steel bars 11 in the adjacent steel bar skeletons 1 are aligned one by one, and the connecting cylinder 31 is inserted between the two aligned threaded heads 13, and then aligned and inserted into the connecting cylinder 31, and the side of the hexagonal connecting ring 36 is clamped with the help of a hexagonal wrench, and the connecting cylinder 31 is rotated to make the threaded head 13 engage with the thread in the connecting cylinder 31, so as to achieve effective fixed screw connection between the vertical steel bars 11, and all the ends of the vertical steel bars 11 are screwed together, and the steel skeleton is completed. The assembly between the frames 1, when the assembled length of the entire outer frame reaches the design value of the pile length, the wall protection tube is then lowered into the borehole to provide wall protection for the entire pile body in the early stage of formation to prevent the hole wall from collapsing. Subsequently, the entire frame assembled by the steel frame 1 is lowered into the borehole, and then gravel is filled into the frame to reach the designed height. During the filling process, the density of the gravel must be ensured to improve the bearing capacity of the gravel-wrapped pile. After the stone filling is completed, the outer wall protection tube is pulled out of the hole to form a complete gravel-wrapped pile. The gravel-wrapped pile is compacted and then quality tested to ensure that it meets the design requirements.

[0040] Compared with the related art, the gravel-wrapped pile provided by the present invention has the following beneficial effects:

[0041] The utility model provides a gravel-wrapped pile. The utility model adds a steel frame 1 on the outside of the gravel layer to strengthen the overall shear strength of the pile body. The gravel layer in the pile body has good compressive performance, and thus the strength of the entire pile body is greatly improved. At the same time, through the provided connection components 3, the steel frame 1 can be quickly assembled. The skeleton of the entire pile body adopts modular assembly, which is convenient for transportation and can greatly shorten the construction period through pre-production, thereby improving practicality.

[0042] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A gravel-wrapped pile, characterized in that: The invention comprises a gravel-wrapped pile, wherein the gravel-wrapped pile comprises a plurality of steel frame (1) and a gravel layer filled inside the steel frame (1), a connecting assembly (3) is provided between the steel frame (1), the steel frame (1) comprises a vertical steel bar (11), a transverse ring bar (12) is fixedly welded to the outer ring of the vertical steel bar (11), and threaded heads (13) are provided at both ends of the vertical steel bar (11); The connecting assembly (3) comprises a connecting cylinder (31), the inner side of which is provided with a lower thread (32) and an upper thread (33), and an extension area (34) is provided on the lower side of the lower thread (32) and the upper side of the upper thread (33).

2. The gravel-wrapped pile according to claim 1, characterized in that: A bottom component (2) is provided at the bottom of the steel bar skeleton (1), and the bottom component (2) comprises an internal threaded barrel (21), and the internal threaded barrel (21) is screwed onto the threaded head (13).

3. The gravel-wrapped pile according to claim 2, characterized in that: The bottom of the internally threaded barrel (21) is fixedly connected to a base (22), and anchoring grooves (23) are evenly distributed on the side walls of the base (22).

4. The gravel-wrapped pile according to claim 1, characterized in that: The extended area (34) is a smooth interval.

5. The gravel-wrapped pile according to claim 1, characterized in that: The transverse ring reinforcement (12) is evenly distributed along the vertical reinforcement (11).

6. The gravel-wrapped pile according to claim 1, characterized in that: The lower thread (32) and the upper thread (33) are symmetrically arranged, and both the lower thread (32) and the upper thread (33) are adapted to the thread head (13).

7. The gravel-wrapped pile according to claim 1, characterized in that: A plurality of stiffening ribs (35) are fixedly connected to the outside of the connecting cylinder (31), and a hexagonal connecting ring (36) is fixedly connected to the outside of the stiffening ribs (35).

8. The gravel-wrapped pile according to claim 7, characterized in that: The hexagonal connecting ring (36) is provided with a circular hole (37).

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