Anti-seismic building pile foundation

Abstract

The utility model discloses an anti-seismic building pile foundation which comprises a pile body and a bearing platform. The reinforcing structure comprises a cavity formed in the pile body, a plurality of inserting plates are movably arranged in the cavity, and through grooves capable of containing the inserting plates are formed in the outer side of the pile body; the insertion plate can extend out of or retract from the through groove; the hollow sleeve is a hollow cylinder and located outside the pile body, and the upper end of the hollow sleeve is fixedly connected with the bottom face of the bearing platform. A concave part is arranged in the lower end of the hollow sleeve and located on the inner side of the hollow sleeve. The anti-pulling pile foundation is provided with the multiple insertion plates capable of being extruded out, the anti-pulling performance is provided in the longitudinal direction, the overall stability of the pile foundation is improved, and therefore the anti-seismic performance of a building is improved; the powerful magnetic block can help the lifting rope to lock the position, complex fixing steps are not needed, and operation is easy and convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building engineering, and specifically relates to an anti-seismic building pile foundation. BACKGROUND

[0002] The deep foundation composed of piles and pile caps connected to the top of the piles or the single pile foundation connected by the column and the pile foundation is simply referred to as the pile foundation. The main function of the pile foundation is to transmit the load of the building to the deep soil layer with good bearing capacity to meet the requirements of bearing capacity and settlement.

[0003] Because the surface of the pile foundation is smooth, the friction and the adhesive force between the pile foundation and the soil layer are limited, especially in the case that the soil quality of the foundation is soft and the bearing capacity is poor, the bearing capacity, stability and anti-seismic and anti-pressure capacity of the pile foundation are affected, and the performance of the pile foundation directly affects the building. Therefore, in order to improve the adverse effects, the friction pile is arranged in the prior art to increase the friction with the soil layer and indirectly improve the anti-seismic capacity of the building. However, the anti-seismic effect of the above structure is limited, and there is room for technical improvement. In addition, in actual operation, the pile foundation needs to be lifted up for position adjustment or inclination adjustment during the embedding process. However, it is troublesome to fix the lifting rope, and the fixing and disassembling of the lifting rope need complex steps, and the work efficiency is not high. SUMMARY

[0004] The utility model solves the above-mentioned technical problems that the anti-seismic capacity of the pile foundation needs to be improved, and the fixing and disassembling of the lifting rope are troublesome when the pile foundation is moved, and provides an anti-seismic building pile foundation.

[0005] To solve the above technical problems, the utility model provides a technical scheme: an anti-seismic building pile foundation, which comprises a pile body and a pile cap, and further comprises:

[0006] A reinforcing structure is arranged in the cavity of the pile body, a plurality of plugboards are movably arranged in the cavity, and a through groove capable of accommodating the plugboards is arranged on the outer side of the pile body; the plugboards can be extended out of the through groove or retracted into the through groove;

[0007] A hollow sleeve is a hollow cylinder, which is located on the outer side of the pile body and is fixedly connected to the bottom surface of the pile cap at the upper end; a recess is arranged in the inner side of the hollow sleeve at the lower end of the hollow sleeve;

[0008] A plurality of strong magnetic blocks are arranged on the outer side of the pile body and below the hollow sleeve.

[0009] Further, a drill bit is arranged at the lower end of the pile body, the diameter of the drill bit gradually decreases from top to bottom, a plurality of ribs are arranged on the outer side of the drill bit, the longitudinal section of each rib is a triangle, a guide mud groove is formed between adjacent ribs, and a conical spike is arranged on the outer side of each rib.

[0010] Further, the side of the plug plate away from each other is provided with a tapered spike two.

[0011] Further, the screw hole in the cavity is threadedly connected with a screw rod, and the cavity is provided with a hollow cylinder capable of accommodating the screw rod.

[0012] Further, the opposite side of the plug plate is provided with a limiting sliding block, and the outer side of the extrusion block is provided with a limiting sliding groove capable of being slidably connected with the limiting sliding block.

[0013] Further, it further comprises a plurality of hanging ropes, and the lower end of the hanging rope is provided with an iron hook.

[0014] The utility model has the advantages that compared with the prior art, the utility model has the advantages that:

[0015] The drill bit is integrally inverted conical, can reduce the contact area with the foundation at the lower end of the pile foundation, facilitate extrusion and placement, and has the function of breaking the soil layer, and can assist the pile foundation to be stably placed into the foundation pit.

[0016] The plurality of plug plates can be extruded, provide tensile resistance in the longitudinal direction, improve the overall stability of the pile foundation, and improve the seismic performance of the building.

[0017] The strong magnetic block can help the hanging rope to be locked in position, without complex fixing steps, and the operation is simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model is a structural schematic diagram.

[0019] Figure 2 The utility model is a pile body cross-sectional structure schematic diagram.

[0020] Figure 3 The utility model is a reinforcing structure schematic diagram.

[0021] Figure 4 The utility model is a hanging rope operation state schematic diagram.

[0022] Figure 5 The utility model is a hollow sleeve cross-sectional structure schematic diagram.

[0023] As shown in the figure: 1, pile body, 2, bearing platform, 3, drill bit, 4, rib, 5, tapered spike, 6, cavity, 7, plug plate, 8, through groove, 9, tapered spike two, 10, screw rod, 11, extrusion block, 12, limiting sliding block, 13, limiting sliding groove, 14, hollow cylinder, 15, hollow sleeve, 16, recess, 17, strong magnetic block, 18, hanging rope, 19, iron hook. DETAILED DESCRIPTION

[0024] The utility model will be made further detailed explanation in combination with the drawings.

[0025] Embodiment one, combine with the drawings Figure 1 A kind of anti-seismic building pile, including pile body 1 and pile cap 2;Pile cap 2 is located above foundation, bottom surface and foundation contact, pile body 1 is buried into foundation;

[0026] Combine with the drawings Figure 1 Pile body 1 lower end is equipped with drill bit 3, drill bit 3 diameter gradually reduces from top to bottom, reduces contact area;Drill bit 3 outside is equipped with several ribs 4, the longitudinal section of rib 4 is all triangle, adjacent rib 4 forms mud guide groove between, can guide the mud produced by extrusion upwards;Rib 4 outside is equipped with conical spine 5, fixed placement can improve the contact area and friction force with foundation after;

[0027] Combine with the drawings Figure 1 、 2 , 3, reinforcing structure;Including the cavity 6 that is equipped in pile body 1, the cavity 6 is moved and is equipped with several insert plates 7, the side of insert plate 7 away from each other is equipped with conical spine two 9, the outer side of pile body 1 is equipped with the through slot 8 that can accommodate insert plate 7;Insert plate 7 can be extended or retracted from the through slot 8;When insert plate 7 is extended from the through slot 8, can be inserted into surrounding soil layer, conical spine 9 further improves the contact surface with soil layer, improves the tensile capacity;

[0028] Specifically, pile cap 2, pile body 1 are connected and are equipped with the screw hole that can be communicated with cavity 6;Screw hole is screw-connected with screw rod 10, cavity 6 is equipped with the hollow cylinder 14 that can accommodate screw rod 10, so that screw rod 10 moves up and down in cavity 6 when rotating, lower end is inserted into hollow cylinder 14;Screw rod 10 outside is rotatably equipped with extrusion block 11, the diameter of extrusion block 11 gradually reduces from top to bottom;Extrusion block 11 and insert plate 7 are all slidingly connected, so that insert plate 7 can be pushed outwards or retracted inwards when extrusion block 11 moves up and down;It is worth mentioning that, the outer side of screw rod 10 only has thread near upper end, from the contact place with extrusion block 11 to lower end is smooth cylinder, realizes the rotary connection with extrusion block 11, so that when screw rod 10 rotates, extrusion block 11 will only follow and move up and down;

[0029] In the above structure, the opposite side of insert plate 7 is equipped with limit sliding block 12, and the outer side of extrusion block 11 is equipped with limit sliding groove 13 that can be slidingly connected with limit sliding block 12;Limit sliding block 12 and limit sliding groove 13 are all dovetail-shaped in cross section;Limit sliding block 12 and limit sliding groove 13 can limit insert plate 7, so that it can only follow extrusion block 11 and move up and down, and will not be taken off from extrusion block 11;

[0030] Combine with the drawings Figure 1 ,4 , 5, hollow sleeve 15; Hollow cylinder, located outside the pile body 1, and the upper end is fixedly connected with the bottom surface of the pile cap 2; Hollow sleeve 15 lower end is provided with a recess 16, recess 16 is located inside the hollow sleeve 15;

[0031] Strong magnetic block 17; There are multiple, located outside the pile body 1, and lower than the hollow sleeve 15; It also includes several ropes 18, the lower end of the rope 18 is provided with an iron hook 19;

[0032] In the above structure, the rope 18 drives the iron hook 19 to move downward, and when it moves to the strong magnetic block 17, it is attracted by the strong magnetic block 17. At this time, the rope 18 is pulled up by force, and after being stressed, the iron hook 19 and the strong magnetic block 17 will be separated, and the upper end of the upward moving iron hook 19 will enter the recess 16 of the hollow sleeve 15, thereby realizing rapid connection. At this time, the pile body 1 can be pulled out directly by pulling the rope 18 through the external device.

[0033] The above describes the utility model and its implementation, which is not limited. The drawings shown are only one of the embodiments of the utility model, and the actual structure is not limited. In general, if a person skilled in the art is inspired, without departing from the purpose of the utility model, without creative design, similar structure and examples of the technical scheme should belong to the protection scope of the utility model.

Claims

1. An anti-seismic building pile foundation comprising a pile body (1) and a pile cap (2); characterized in that: Also include: Reinforced structure; including the pile (1) is provided with a cavity (6), the cavity (6) is movably provided with a plurality of plugboard (7), the pile (1) outside is provided with a through slot (8) capable of accommodating plugboard (7); plugboard (7) can be extended or retracted from the through slot (8); Hollow sleeve (15); hollow cylindrical, located outside the pile (1), and the upper end is fixedly connected with the bottom surface of the cap (2); the lower end of the hollow sleeve (15) is provided with a recess (16), and the recess (16) is located inside the hollow sleeve (15); Strong magnetic block (17); a plurality of are provided, located outside the pile (1), and lower than the hollow sleeve (15).

2. The anti-seismic building pile foundation according to claim 1, characterized in that: The lower end of the pile (1) is provided with a drill bit (3), the diameter of the drill bit (3) gradually decreases from top to bottom; the outer side of the drill bit (3) is provided with a plurality of ribs (4), the longitudinal section of the rib (4) is triangular, and the adjacent ribs (4) form a guide groove; the outer side of the rib (4) is provided with a conical spike (5).

3. The anti-seismic building pile foundation according to claim 1, characterized in that: The opposite sides of the plugboard (7) are provided with conical spikes (9).

4. The anti-seismic building pile foundation according to claim 1, characterized in that: The cap (2) and the pile (1) are connected and provided with a threaded hole capable of communicating with the cavity (6); the threaded hole is threadedly connected with a screw rod (10), and the cavity (6) is provided with a hollow cylinder (14) capable of accommodating the screw rod (10); the outer side of the screw rod (10) is slidably provided with an extrusion block (11), and the diameter of the extrusion block (11) gradually decreases from top to bottom; the extrusion block (11) and the plugboard (7) are slidably connected.

5. The anti-seismic building pile foundation according to claim 4, characterized in that: The opposite sides of the plugboard (7) are provided with a limiting sliding block (12), and the outer side of the extrusion block (11) is provided with a limiting sliding groove (13) capable of slidably connecting with the limiting sliding block (12); the limiting sliding block (12) and the limiting sliding groove (13) are dovetail-shaped in cross section.

6. The anti-seismic building pile foundation according to claim 1, characterized in that: Also include a plurality of hanging ropes (18), the lower end of the hanging rope (18) is provided with an iron hook (19).

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