High-strength foundation laying structure and laying method thereof

Abstract

This application relates to a high-strength foundation laying structure and its laying method, comprising a foundation body, a fixing groove provided in the foundation body, a pile foundation sleeve provided in the fixing groove, a sliding hole provided in the inner wall of the pile foundation sleeve, the sliding hole penetrating the pile foundation sleeve, a sliding rod sliding along the sliding hole, the sliding direction of the sliding rod being the penetrating direction of the sliding hole, a pile base provided in the inner wall of the pile foundation sleeve, the outer wall of the pile base abutting against the inner wall of the pile foundation sleeve, and the outer wall of the pile base abutting against one end of the sliding rod near the axis of the pile foundation sleeve. By providing the sliding rod, when foundation body fixation is required, the sliding rod protrudes from one outer wall of the pile foundation sleeve and embeds into the soil near the fixing groove through the abutment of the pile base. This method improves the connection strength between the pile foundation sleeve and the soil when fixed to the ground, reduces the possibility of decreased overturning resistance of the foundation body due to unstable pile foundation sleeve fixation, and enhances the strength of the foundation body.

Description

Technical Field

[0001] This application relates to the field of foundation laying, and in particular to a high-strength foundation laying structure and its laying method. Background Technology

[0002] A foundation refers to the soil or rock mass beneath a building that supports its foundation. Soil layers used as building foundations include rock, gravelly soil, sandy soil, silty soil, clayey soil, and artificial fill. Foundations can be natural or artificial.

[0003] Refer to Chinese utility patent CN217580092U, which discloses a novel pile foundation suitable for soft soil foundation treatment. The foundation includes a steel pipe pile with a circumferential concrete canvas arranged along its inner side. The concrete canvas is folded, with the folded edge parallel to the axis of the steel pipe pile. A mixture of sodium-based bentonite and quicklime is placed inside the concrete canvas, and a pile tip is provided at the bottom of the steel pipe pile. This patent eliminates the need for impact drilling or filling of borehole material; the dry pile body is directly pressed into the soft soil foundation, making the operation convenient.

[0004] In practical use, when the pile foundation is fixed to the ground body, the connection strength between the pile foundation and the surrounding soil is relatively small. This can lead to unstable pile foundation fixing and reduced overturning resistance of the foundation, which needs to be improved. Summary of the Invention

[0005] To improve the overturning resistance of the foundation, this application provides a high-strength foundation laying structure and its laying method.

[0006] In a first aspect, this application provides a high-strength foundation laying structure, which adopts the following technical solution:

[0007] A high-strength foundation paving structure includes a foundation body, a fixing groove provided in the foundation body, a pile foundation sleeve provided in the fixing groove, a sliding hole provided in the inner wall of the pile foundation sleeve, the sliding hole penetrating the pile foundation sleeve, a sliding rod sliding along the sliding hole, the sliding direction of the sliding rod being the penetrating direction of the sliding hole, a pile base provided in the inner wall of the pile foundation sleeve, the outer wall of the pile base abutting against the inner wall of the pile foundation sleeve, and the outer wall of the pile base abutting against one end of the sliding rod near the axis of the pile foundation sleeve.

[0008] By adopting the above technical solution and setting a sliding rod, when it is necessary to fix the foundation body, the sliding rod is made to protrude from the outer wall of the pile sleeve and embed itself in the soil near the fixing groove by the pile base contacting the sliding rod. In this way, the connection strength between the pile sleeve and the soil when it is fixed to the ground is improved, the situation of unstable pile sleeve fixing leading to a decrease in the overturning resistance of the foundation body is reduced, and the strength of the foundation body is improved.

[0009] Optionally, the sliding hole includes a first connecting hole and a second connecting hole. The pile foundation sleeve is provided with a rotating annular groove, and the rotating annular groove is provided with a rotating cylinder. The rotating cylinder rotates on the pile foundation sleeve, and the rotation axis of the rotating cylinder is the axis of the pile foundation sleeve. The first connecting hole is located on the side of the rotating cylinder close to its own rotation axis, and the second connecting hole is located on the side of the rotating cylinder away from its own rotation axis. The rotating cylinder is provided with a connecting hole, which is used to connect the first connecting hole and the second connecting hole.

[0010] By adopting the above technical solution, connecting hole one and connecting hole two are set. When the rotating cylinder rotates to the point where the connecting hole does not connect connecting hole one and connecting hole two, the sliding rod is difficult to move along the through direction of the sliding hole, thereby reducing the impact of the sliding rod movement when the pile foundation sleeve is embedded in the fixing groove. When the pile foundation sleeve is embedded in the fixing groove, rotating the rotating cylinder makes the connecting hole connect connecting hole one and connecting hole two, and moves the pile base so that the pile base is embedded in the pile foundation sleeve. When the pile base moves, it pushes the sliding rod to move along the through direction of the sliding hole, and makes the sliding rod embedded in the soil near the fixing groove, thereby improving the stability of the pile foundation sleeve fixing.

[0011] Optionally, the sliding rod is provided with a sliding groove located on the outer wall of the sliding rod. A closing plate slides through the sliding groove, and the sliding direction of the closing plate is the axial direction of the sliding rod. A placement groove is provided at the bottom of the sliding groove for placing soil solidifying agent. The closing plate closes the placement groove and is provided with a positioning element that restricts the closing plate from moving away from the axis of the rotating cylinder.

[0012] By adopting the above technical solution, a sliding groove and a placement groove are set up. The placement groove is closed by a closing plate, which reduces the overflow of soil solidifying agent during the movement of the pile foundation sleeve. The positioning component is used to restrict the closing plate from moving away from the axis of the rotating cylinder, so that the closing plate can be separated from the placement groove. This facilitates the subsequent entry of the soil solidifying agent in the placement groove into the soil and its combination with soil particles, thereby improving the structural strength of the soil and thus improving the overturning resistance of the foundation body.

[0013] Optionally, the closed plate is provided with a positioning groove, and the positioning component includes a positioning spring and a positioning block. The positioning spring is located at the bottom of the positioning groove, and the end of the positioning spring away from the bottom of the positioning groove is connected to the positioning block. The positioning block protrudes from the end face of the closed plate, and the wall of the connecting hole is provided with a limiting groove for the positioning block to be embedded.

[0014] By adopting the above technical solution, a positioning groove and a limiting groove are set. When the positioning block abuts against the wall of the connecting hole, the end of the positioning block away from the bottom of the positioning groove is flush with the end face of the closing plate. When the closing plate moves to the positioning groove and aligns with the limiting groove, the elastic force of the positioning spring causes the positioning to move and embed into the limiting groove. In this way, it is easy to place the soil solidifying agent in the groove into the soil, which is convenient to improve the structural strength of the soil.

[0015] Optionally, the positioning block includes a positioning part and a positioning magnet one. The positioning part is connected to a positioning spring. The positioning magnet one is located at the end of the positioning part away from the positioning spring. The positioning magnet one has an inclined surface. The inclined surface extends in a direction away from the bottom of the positioning groove towards the axis of the rotating cylinder. The bottom of the limiting groove is provided with a positioning magnet two. The positioning magnet one and the positioning magnet two attract each other.

[0016] By adopting the above technical solution, in actual use, the inclined surface makes it easy for the positioning block to be embedded in the positioning groove when it abuts against the wall of the first connecting hole, which facilitates the sliding of the sliding rod. However, when the closing plate moves to the positioning groove and aligns with the limiting groove, the presence of the inclined surface causes the positioning block to move again towards the bottom of the positioning groove during the movement of the closing plate, which is not convenient for the limiting of the closing plate. Therefore, positioning magnet one and positioning magnet two are set. The mutual attraction between positioning magnet one and positioning magnet two causes the positioning block to protrude from the end face of the closing plate, thereby restricting the movement of the closing plate and facilitating the entry of the soil stabilizer into the soil.

[0017] Optionally, the pile foundation is provided with a guide section, which is located at one end of the pile foundation along its length and tapers away from the pile foundation. The guide section is used to abut against the sliding rod.

[0018] By adopting the above technical solution, a guide part is set up, which abuts against the sliding rod to facilitate the movement of the sliding rod. This makes it easier to control the movement of the pile foundation to embed the sliding rod into the soil near the fixing groove, making the overall use more convenient.

[0019] Secondly, this application provides a method for laying a high-strength foundation structure, including the aforementioned high-strength foundation structure, comprising the following steps:

[0020] S1: A fixing groove for embedding the pile foundation sleeve is opened in the ground body through the drill rod, and the pile foundation sleeve is embedded into the fixing groove;

[0021] S2: Embed the pile foundation into the pile foundation sleeve, so that the outer wall of the pile foundation abuts against the inner wall of the pile foundation sleeve, and install a steel cage on the inner wall of the pile foundation;

[0022] S3: The flowability of concrete is tested by a drop test, and the compressive strength of concrete is tested by a compressive strength test. After passing the test, the concrete fluid is injected into the pile foundation through a delivery pipe.

[0023] S4: Inspect the gravel and rubber particles. Inspect the qualified gravel and rubber particles, mix them evenly, and lay them as a subbase on the ground.

[0024] S5: Lay a water-resistant backfill layer on the subbase, and lay a polymer resin water-absorbing layer at the end of the water-resistant backfill layer away from the subbase.

[0025] S6: After the polymer resin absorbent layer is laid, the top surface water-resistant backfill layer is laid on top of the polymer resin absorbent layer. The top surface water-resistant backfill material is then surface-leveled and compacted. The surface of the top surface water-resistant backfill layer after leveling and compaction should be flat and the interior should be tight without cavities.

[0026] S7: After the water-resistant backfill layer on the bottom surface has been laid and inspected, subsequent construction will proceed.

[0027] By adopting the above technical solution, a water-resistant backfill layer on the bottom surface, a polymer resin water-absorbing layer, and a water-resistant backfill layer on the top surface are set up, which improves the overall water-proofing capacity and reduces the impact of liquid flow on the structural strength of the foundation.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. Install sliding rods. When it is necessary to fix the foundation body, the sliding rods are made to protrude from the outer wall of the pile sleeve and embed into the soil near the fixing groove by the pile base against the sliding rods. In this way, the connection strength between the pile sleeve and the soil when it is fixed to the ground is improved, the situation of unstable pile sleeve fixing leading to a decrease in the overturning resistance of the foundation body is reduced, and the strength of the foundation body is improved.

[0030] 2. Set up positioning groove and limiting groove. When the positioning block abuts against the wall of the connecting hole, the end of the positioning block away from the bottom of the positioning groove is flush with the end face of the closing plate. When the closing plate moves to the positioning groove and aligns with the limiting groove, the elastic force of the positioning spring causes the positioning to move and embed into the limiting groove. In this way, it is easy to place the soil solidifying agent in the groove into the soil, which is conducive to improving the structural strength of the soil.

[0031] 3. Set positioning magnet one and positioning magnet two. The mutual attraction between positioning magnet one and positioning magnet two causes the positioning block to protrude from the end face of the closed plate, thereby restricting the movement of the closed plate and facilitating the entry of the soil stabilizer into the soil. Attached Figure Description

[0032] Figure 1 This is an overall schematic diagram of an embodiment.

[0033] Figure 2 This is a cross-sectional schematic diagram of an embodiment.

[0034] Figure 3 yes Figure 2 An enlarged diagram of A in the diagram.

[0035] Figure 4 yes Figure 3Enlarged diagram of B in the diagram.

[0036] Explanation of reference numerals in the attached drawings: 1. Foundation body; 2. Fixing groove; 3. Pile foundation sleeve; 4. Guide part two; 5. Rotating ring groove; 6. Sliding hole; 7. Sliding rod; 8. Connecting hole one; 9. Connecting hole two; 10. Rotating cylinder; 11. Connecting hole; 12. Pile foundation; 13. Guide part one; 14. Sliding groove; 15. Closing plate; 16. Placement groove; 17. Positioning groove; 18. Positioning spring; 19. Positioning block; 20. Positioning part; 21. Positioning magnet one; 22. Positioning magnet two; 23. Inclined surface; 24. Cushion layer; 25. Water-resistant backfill layer on the lower bottom surface; 26. Polymer resin water-absorbing layer; 27. Water-resistant backfill layer on the upper bottom surface. Detailed Implementation

[0037] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0038] This application discloses a high-strength foundation laying structure. (Refer to...) Figure 1 The system includes a foundation body 1, a fixing groove 2, and a pile foundation sleeve 3. A guide section 4 is provided at one end of the pile foundation sleeve 3 near the bottom of the fixing groove 2. The guide section 4 gradually widens in a direction away from the bottom of the fixing groove 2, facilitating the embedment of the pile foundation sleeve 3 into the foundation body 1. The pile foundation sleeve 3 has a rotating annular groove 5 located at the end of the pile foundation sleeve 3 away from the bottom of the fixing groove 2. A sliding hole 6 is provided on the inner wall of the pile foundation sleeve 3, penetrating both the pile foundation sleeve 3 and the fixing groove 2. A sliding rod 7 slides along the sliding hole 6, with the sliding direction of the sliding rod 7 being the penetrating direction of the sliding hole 6.

[0039] The sliding hole 6 includes a first connecting hole 8 and a second connecting hole 9. The rotating annular groove 5 is provided with a rotating cylinder 10, which rotates on the pile foundation sleeve 3. The rotation axis of the rotating cylinder 10 is the axis of the pile foundation sleeve 3. The first connecting hole 8 is located on the side of the rotating cylinder 10 close to its own rotation axis, and the second connecting hole 9 is located on the side of the rotating cylinder 10 away from its own rotation axis. The rotating cylinder 10 is provided with a connecting hole 11, which is used to connect the first connecting hole 8 and the second connecting hole 9.

[0040] When the pile foundation sleeve 3 needs to be embedded into the fixing groove 2, the rotating cylinder 10 rotates, causing the connecting hole 11 to be misaligned with the connecting hole 8 and the connecting hole 9. At this time, the end of the sliding rod 7 away from the pile foundation sleeve 3 is located in the connecting hole 8. When the rotating cylinder 10 rotates to the point where the connecting hole 11 connects the connecting hole 8 and the connecting hole 9, the sliding rod 7 slides in the sliding hole 6.

[0041] The inner wall of the pile foundation sleeve 3 is provided with a pile foundation portion 12, which slides on the inner wall of the pile foundation sleeve 3 in a vertical direction. The outer wall of the pile foundation portion 12 abuts against the inner wall of the pile foundation sleeve 3 and abuts against the end of the sliding rod 7 near the axis of the pile foundation sleeve 3. The pile foundation portion 12 is provided with a guide portion 13, which is located at the end of the pile foundation portion 12 near the bottom of the fixing groove 2. The guide portion 13 is tapered in a direction away from the pile foundation portion 12 and is used to abut against the sliding rod 7 so that the sliding rod 7 slides in the sliding hole 6.

[0042] The sliding rod 7 is provided with a sliding groove 14, which is located on the outer wall of the sliding rod 7. A closing plate 15 slides through the sliding groove 14, and the sliding direction of the closing plate 15 is the axial direction of the sliding rod 7. A placement groove 16 is provided at the bottom of the sliding groove 14 for placing soil solidifying agent. The closing plate 15 is used to close the placement groove 16. The closing plate 15 is provided with a positioning element, which is used to restrict the closing plate 15 from moving away from the axis of the rotating cylinder 10.

[0043] The closing plate 15 is provided with a positioning groove 17. The positioning components include a positioning spring 18 and a positioning block 19. The positioning spring 18 is located at the bottom of the positioning groove 17. The end of the positioning spring 18 away from the bottom of the positioning groove 17 is connected to the positioning block 19. The elastic force of the positioning spring 18 restricts the positioning block 19 to move towards the bottom of the positioning groove 17. The positioning block 19 protrudes from the end face of the closing plate 15. The wall of the connecting hole 11 is provided with a limiting groove for the positioning block 19 to be inserted.

[0044] In practical use, the positioning block 19 includes a positioning part 20 and a positioning magnet 21. The positioning part 20 is connected to the positioning spring 18. The positioning magnet 21 is located at the end of the positioning part 20 away from the positioning spring 18. The positioning magnet 21 has an inclined surface 23. The inclined surface 23 extends from the bottom of the positioning groove 17 toward the axis of the rotating cylinder 10. The bottom of the limiting groove is provided with a positioning magnet 22. The positioning magnet 21 and the positioning magnet 22 attract each other.

[0045] In practical use, the end of the inclined surface 23 away from the axis of the rotating cylinder 10 and the side away from the positioning part 20 is located in the positioning groove 17, while the end of the inclined surface 23 close to the axis of the rotating cylinder 10 and the side away from the positioning part 20 protrudes from the end face of the closing plate 15.

[0046] The implementation principle of a high-strength foundation laying structure in this application embodiment is as follows: In actual use, the pile foundation sleeve 3 is embedded in the fixing groove 2, and the pile foundation part 12 is moved so that the pile foundation part 12 abuts against the sliding rod 7 and the sliding rod 7 moves away from the axis of the rotating cylinder 10. When the sliding rod 7 moves to the positioning groove 17 of the closing plate 15 and aligns with the limiting groove, the positioning magnet 22 causes the positioning magnet 21 to move. At this time, the sliding rod 7 continues to move while the closing plate 15 stops moving. Subsequently, the soil solidifying agent in the placement groove 16 enters the soil and improves the structural strength of the soil, thereby improving the overturning resistance of the foundation body 1.

[0047] A method for laying a high-strength foundation structure, including the aforementioned high-strength foundation structure, includes the following steps:

[0048] S1: A fixing groove 2 for embedding the pile foundation sleeve 3 is opened in the ground body 1 by drilling rod, and the pile foundation sleeve 3 is embedded in the fixing groove 2;

[0049] S2: Embed the pile foundation 12 into the pile foundation sleeve 3, so that the outer wall of the pile foundation 12 abuts against the inner wall of the pile foundation sleeve 3, and install a steel cage on the inner wall of the pile foundation 12;

[0050] S3: The flowability of concrete is tested by a drop test, and the compressive strength of concrete solid is tested by a compressive strength test. After passing the test, the concrete fluid is injected into the pile foundation 12 through the material guide pipe, and the adjacent pile foundation sleeves 3 are connected by concrete.

[0051] S4: Check the gravel and rubber particles, check the qualified gravel and rubber particles, mix them evenly, and lay them as the cushion layer 24 on the ground body 1.

[0052] S5: Lay a bottom water-resistant backfill layer 25 on the subbase 24, and lay a polymer resin water-absorbing layer 26 at the end of the bottom water-resistant backfill layer 25 away from the subbase 24.

[0053] S6: After the polymer resin absorbent layer 26 is laid, the top bottom water-resistant backfill layer 27 is laid on top of the polymer resin absorbent layer 26. The top bottom water-resistant backfill material is then surface-leveled and compacted. The top bottom water-resistant backfill layer 27 is required to have a flat surface and a tight interior without cavities after leveling and compaction.

[0054] S7: After the water-resistant backfill layer on the bottom surface has been laid and inspected, subsequent construction will proceed.

[0055] The implementation principle of the high-strength foundation laying method in this application embodiment is as follows: A water-resistant backfill layer 25, a polymer resin water-absorbing layer 26, and an upper water-resistant backfill layer 27 are set at the bottom surface, which improves the overall water-resistant capacity, thereby reducing the impact of liquid flow on the structural strength of the foundation body 1. Furthermore, adjacent pile foundation sleeves 3 are connected by concrete, improving the overall stability.

[0056] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-strength foundation laying structure comprising a foundation body (1), characterized by: The foundation body (1) is provided with a fixing groove (2), the fixing groove (2) is provided with a pile foundation sleeve (3), the inner wall of the pile foundation sleeve (3) is provided with a sliding hole (6), the sliding hole (6) penetrates the pile foundation sleeve (3), the sliding hole (6) has a sliding rod (7) sliding on it, the sliding direction of the sliding rod (7) is the penetration direction of the sliding hole (6), the inner wall of the pile foundation sleeve (3) is provided with a pile foundation part (12), the outer wall of the pile foundation part (12) abuts against the inner wall of the pile foundation sleeve (3), and the outer wall of the pile foundation part (12) abuts against one end of the sliding rod (7) near the axis of the pile foundation sleeve (3); The sliding hole (6) includes a first connecting hole (8) and a second connecting hole (9). The pile foundation sleeve (3) is provided with a rotating annular groove (5). The rotating annular groove (5) is provided with a rotating cylinder (10). The rotating cylinder (10) rotates on the pile foundation sleeve (3). The rotation axis of the rotating cylinder (10) is the axis of the pile foundation sleeve (3). The first connecting hole (8) is located on the side of the rotating cylinder (10) close to its own rotation axis. The second connecting hole (9) is located on the side of the rotating cylinder (10) away from its own rotation axis. The rotating cylinder (10) is provided with a connecting hole (11). The connecting hole (11) is used to connect the first connecting hole (8) and the second connecting hole (9). The sliding rod (7) is provided with a sliding groove (14), the sliding groove (14) is located on the outer wall of the sliding rod (7), the sliding groove (14) has a closing plate (15) sliding on it, the sliding direction of the closing plate (15) is the axial direction of the sliding rod (7), the bottom of the sliding groove (14) is provided with a placement groove (16), the placement groove (16) is for placing soil solidifying agent, the closing plate (15) closes the placement groove (16), the closing plate (15) is provided with a positioning element, the positioning element restricts the closing plate (15) from moving away from the axis of the rotating cylinder (10); The closed plate (15) is provided with a positioning groove (17). The positioning component includes a positioning spring (18) and a positioning block (19). The positioning spring (18) is located at the bottom of the positioning groove (17). The end of the positioning spring (18) away from the bottom of the positioning groove (17) is connected to the positioning block (19). The positioning block (19) protrudes from the end face of the closed plate (15). The wall of the connecting hole (11) is provided with a limiting groove for the positioning block (19) to be embedded in.

2. The high strength foundation laydown structure of claim 1, wherein: The positioning block (19) includes a positioning part (20) and a positioning magnet (21). The positioning part (20) is connected to a positioning spring (18). The positioning magnet (21) is located at the end of the positioning part (20) away from the positioning spring (18). The positioning magnet (21) has an inclined surface (23). The inclined surface (23) extends in a direction away from the bottom of the positioning groove (17) towards the axis of the rotating cylinder (10). The bottom of the limiting groove is provided with a positioning magnet (22). The positioning magnet (21) and the positioning magnet (22) attract each other.

3. The high-strength foundation laying structure according to claim 1, characterized in that: The pile base (12) is provided with a guide part (13), which is located at one end of the pile base (12) along its length. The guide part (13) is tapered in a direction away from the pile base (12) and is used to abut against the sliding rod (7).

4. A method for laying a high-strength foundation structure according to any one of claims 1-3, characterized in that, Includes the following steps: S1: A fixing groove (2) for embedding the pile foundation sleeve (3) is opened in the ground foundation body (1) by drilling rod, and the pile foundation sleeve (3) is embedded in the fixing groove (2); S2: Embed the pile base (12) into the pile base sleeve (3) so that the outer wall of the pile base (12) abuts against the inner wall of the pile base sleeve (3), and set a steel cage on the inner wall of the pile base (12); S3: The flowability of concrete fluid is detected by the drop test, and the compressive strength of concrete solid is detected by the compressive strength test. After passing the test, the concrete fluid is injected into the pile foundation (12) through the material guide pipe. S4: Check the gravel and rubber particles, check the qualified gravel and rubber particles, mix them evenly, and lay them as a cushion layer (24) on the ground body (1). S5: Lay a bottom water-resistant backfill layer (25) on the subbase (24), and lay a polymer resin water-absorbing layer (26) at the end of the bottom water-resistant backfill layer (25) away from the subbase (24); S6: After the polymer resin water-absorbing layer (26) is laid, the top bottom water-resistant backfill layer (27) is laid on top of the polymer resin water-absorbing layer (26). The top bottom water-resistant backfill material is then surface-leveled and compacted. The surface of the top bottom water-resistant backfill layer (27) after leveling and compaction is required to be flat and the interior is tight without cavities. S7: After the water-resistant backfill layer (27) on the upper bottom surface is laid and inspected, subsequent construction will be carried out.

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