Pile foundation reinforcing device

Abstract

The utility model relates to the technical field of pile foundations, and discloses a pile foundation reinforcing device which comprises a precast pile, a through opening is formed in the precast pile, the top of the precast pile is in threaded connection with a fastening bolt, the top of the precast pile is in threaded connection with a limiting bolt, and the limiting bolt is in threaded connection with the through opening. The pile foundation reinforcing device comprises a precast pile, a reinforcing mechanism for improving the stability of a pile foundation is arranged in the precast pile, an auxiliary mechanism for further improving the stability is arranged on the reinforcing mechanism, the reinforcing mechanism comprises a sliding plate, and the sliding plate is slidably connected to the inner wall of the precast pile. And a pneumatic hammer is used for driving a limiting bolt into the prefabricated pile, meanwhile, a sliding plate, a chute and a limiting column are matched, an anchor plate can be transversely inserted into the foundation pit, the prefabricated pile can be longitudinally reinforced through the anchor plate, the longitudinal stability of the prefabricated pile is improved, and the situation that the prefabricated pile is extruded by external force and then sinks is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pile foundations, in particular to a pile foundation reinforcement device. Background Art

[0002] A deep foundation consisting of a pile and a pile cap connected to the top of the pile, or a single pile foundation connected by a column and a pile foundation, is referred to as a pile foundation.

[0003] Precast piles are a type of pile foundation. Precast piles have the advantages of easy construction and high strength. Precast piles are driven into the underground foundation pit by a pile driver. Driving the piles into the foundation pit by a pile driver can prevent the precast piles from lateral displacement, but it cannot avoid the longitudinal displacement of the precast piles. If a large machine runs over the top of the precast pile at this time, it is likely to cause the soil to sink, which may cause the precast pile to shift longitudinally and have poor stability. Utility Model Content

[0004] The purpose of the utility model is to provide a pile foundation reinforcement device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pile foundation reinforcement device, comprising a precast pile, a through opening is opened on the precast pile, a fastening bolt is threadedly connected to the top of the precast pile, a limit bolt is threadedly connected to the top of the precast pile, a reinforcement mechanism for improving the stability of the pile foundation is arranged inside the precast pile, and the longitudinal stability of the precast pile can be improved by arranging the reinforcement mechanism, an auxiliary mechanism for further improving the stability is arranged on the reinforcement mechanism, and the longitudinal stability of the precast pile can be further improved by arranging the auxiliary mechanism, and the reinforcement mechanism comprises:

[0006] A slide plate, wherein the slide plate is slidably connected to the inner wall of the precast pile, an inclined groove is provided on the slide plate, the top of the slide plate is rotatably connected to the bottom of the limit bolt, and the limit column can be squeezed by providing the inclined groove;

[0007] An anchor plate, wherein the anchor plate is slidably connected to the inner wall of the through opening, and the longitudinal stability of the precast pile can be improved by arranging the anchor plate;

[0008] A limiting column, one end of which is fixedly mounted on the side wall of the anchor plate, and the other end of which is fitted on the inner wall of the inclined groove.

[0009] Preferably, the auxiliary mechanism comprises a side plate, the side plate is slidably connected to the inner wall of the precast pile, and a slope block is fixedly mounted on the side wall of the side plate.

[0010] Preferably, a sliding rod is slidably connected to the inner wall of the anchor plate, and a through hole is provided on the anchor plate.

[0011] Preferably, an anchor rod is fixedly installed on one side of the sliding rod, and a top rod is fixedly installed on the other side of the sliding rod. The longitudinal stability of the precast pile can be further improved by providing the anchor rod.

[0012] Preferably, one end of the push rod away from the slide rod passes through the anchor plate and fits on the outer wall of the inclined surface block, and the slide rod is slidably connected to the penetration point of the anchor plate, and the push rod can be squeezed by providing the inclined surface block.

[0013] Preferably, the top of the side plate is rotatably connected to the bottom of the fastening bolt.

[0014] Compared with the prior art, the utility model provides a pile foundation reinforcement device, which has the following beneficial effects:

[0015] 1. The pile foundation reinforcement device drives the precast pile into the foundation pit through a pile driver, and then drives the limit bolt into the precast pile through a pneumatic gun. At the same time, with the help of a slide plate, an inclined groove and a limit column, the anchor plate can be inserted horizontally into the foundation pit. At this time, the precast pile can be longitudinally reinforced by the anchor plate, thereby improving the longitudinal stability of the precast pile and preventing the precast pile from being squeezed by external force and sinking.

[0016] 2. The pile foundation reinforcement device uses a pneumatic gun to drive the fastening bolts into the interior of the precast pile. At the same time, in conjunction with the side plates, inclined blocks, top rods, and sliding rods, the anchor rods can slide out of the anchor plates through the through holes and be inserted into the interior of the foundation pit. At this time, the anchor rods can be used to further improve the longitudinal stability of the precast pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the reinforcement mechanism and the auxiliary mechanism of the utility model in the unfolded state;

[0019] Figure 3 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the side cross-sectional structure of the utility model;

[0021] Figure 5 It is a schematic diagram of the cross-sectional structure of the anchor plate of the utility model;

[0022] Figure 6 For this utility model Figure 4 A is an enlarged structural diagram of FIG.

[0023] In the figure: 1. precast pile; 2. through opening; 3. fastening bolt; 4. limiting bolt; 5. reinforcement mechanism; 51. slide plate; 52. anchor plate; 53. limiting column; 54. inclined groove; 6. auxiliary mechanism; 61. side plate; 62. inclined block; 63. sliding rod; 64. anchor rod; 65. top rod; 66. through hole. DETAILED DESCRIPTION

[0024] like Figure 1-Figure 6 As shown, the utility model provides a technical solution: a pile foundation reinforcement device, including a precast pile 1, a through hole 2 is opened on the precast pile 1, and a fastening bolt 3 is threadedly connected to the top of the precast pile 1. The fastening bolt 3 is driven into the interior of the precast pile 1 by a pneumatic gun. At the same time, the fastening bolt 3 will drive the side plate 61 to slide downward, and the top of the precast pile 1 is threadedly connected with a limiting bolt 4. The limiting bolt 4 is driven into the interior of the precast pile 1 by a pneumatic gun. At the same time, the limiting bolt 4 will drive the slide plate 51 to slide downward, and a reinforcement mechanism 5 for improving the stability of the pile foundation is arranged inside the precast pile 1. By setting the reinforcement mechanism 5, the longitudinal stability of the precast pile 1 can be improved to prevent the precast pile 1 from being squeezed by external force and then sinking. An auxiliary mechanism 6 for further improving stability is arranged on the reinforcement mechanism 5. By setting the auxiliary mechanism 6, the longitudinal stability of the precast pile 1 can be further improved.

[0025] The above-mentioned reinforcement mechanism 5 includes a slide plate 51, an anchor plate 52, a limit column 53, and an inclined groove 54; the slide plate 51 is slidably connected to the inner wall of the precast pile 1, and an inclined groove 54 is provided on the slide plate 51. The top of the slide plate 51 is rotatably connected to the bottom of the limit bolt 4, and the limit bolt 4 is driven into the interior of the precast pile 1 by a jackhammer. At the same time, the limit bolt 4 will drive the slide plate 51 to slide downward, and the anchor plate 52 is slidably connected to the inner wall of the through-hole 2. By inserting the anchor plate 52 horizontally into the interior of the foundation pit, the precast pile 1 can be longitudinally reinforced to improve the longitudinal stability of the precast pile 1. One end of the limit column 53 is fixedly installed on the side wall of the anchor plate 52, and the other end of the limit column 53 is attached to the inner wall of the inclined groove 54. When the slide plate 51 slides downward, the limit column 53 can be squeezed in cooperation with the inclined groove 54, so that the limit column 53 drives the anchor plate 52 to slide on the inner wall of the through-hole 2 to the outside of the precast pile 1.

[0026] The auxiliary mechanism 6 includes a side plate 61, an inclined block 62, a slide bar 63, an anchor rod 64, a top rod 65, and a through hole 66; the side plate 61 is slidably connected to the inner wall of the precast pile 1, and the side wall of the side plate 61 is fixedly installed with an inclined block 62. The top of the side plate 61 is rotatably connected to the bottom of the fastening bolt 3. The fastening bolt 3 is driven into the interior of the precast pile 1 by a jackhammer. At the same time, the fastening bolt 3 will drive the side plate 61 to slide downward, and the inner wall of the anchor plate 52 is slidably connected with a slide bar 63. The anchor plate 52 is provided with a through hole 66. One side of the slide bar 63 is fixedly installed with an anchor rod 64. The anchor rod 64 can be used to In order to further improve the longitudinal stability of the precast pile 1, a top rod 65 is fixedly installed on the other side of the sliding rod 63. When the top rod 65 shrinks toward the inside of the anchor plate 52, it cooperates with the sliding rod 63 to drive the anchor rod 64 to slide out of the anchor plate 52 through the through hole 66 and insert into the inside of the foundation pit. The end of the top rod 65 away from the sliding rod 63 penetrates the anchor plate 52 and fits the outer wall of the inclined block 62, and the sliding rod 63 is slidably connected to the penetration point of the anchor plate 52. When the side plate 61 slides downward, it will drive the inclined block 62 to move downward synchronously. At this time, the inclined block 62 will squeeze the top rod 65, causing the top rod 65 to shrink toward the inside of the anchor plate 52.

[0027] Working principle: First, use a pile driver to drive the precast pile 1 into the interior of the foundation pit, and then use a jackhammer to drive the limit bolt 4 into the interior of the precast pile 1. At the same time, the limit bolt 4 will drive the slide plate 51 to slide downward. At this time, the inclined groove 54 on the slide plate 51 will squeeze the limit column 53, so that the limit column 53 drives the anchor plate 52 to slide on the inner wall of the opening 2 toward the outside of the precast pile 1, so that the anchor plate 52 is horizontally inserted into the interior of the foundation pit. At this time, the precast pile 1 can be longitudinally reinforced by the anchor plate 52, thereby improving the longitudinal stability of the precast pile 1 and preventing the precast pile 1 from being squeezed by external force and then sinking.

[0028] After the anchor plate 52 is inserted into the interior of the foundation pit horizontally, the fastening bolt 3 is driven into the interior of the precast pile 1 by using a jackhammer. At the same time, the fastening bolt 3 will drive the side plate 61 to slide downward. When the side plate 61 slides downward, it will drive the inclined block 62 to move downward synchronously. At this time, the inclined block 62 will squeeze the top rod 65, causing the top rod 65 to shrink toward the interior of the anchor plate 52. At the same time, the sliding rod 63 can drive the anchor rod 64 to slide out of the anchor plate 52 through the through hole 66 and insert into the interior of the foundation pit. At this time, the anchor rod 64 can be used to further improve the longitudinal stability of the precast pile 1.

[0029] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A pile foundation reinforcement device, comprising a prefabricated pile (1), characterized in that: The prefabricated pile (1) is provided with a through hole (2), the top of the prefabricated pile (1) is threadedly connected with a fastening bolt (3), the top of the prefabricated pile (1) is threadedly connected with a limit bolt (4), a reinforcement mechanism (5) for improving the stability of the pile foundation is arranged inside the prefabricated pile (1), an auxiliary mechanism (6) for further improving the stability is arranged on the reinforcement mechanism (5), and the reinforcement mechanism (5) comprises: A slide plate (51), wherein the slide plate (51) is slidably connected to the inner wall of the prefabricated pile (1), an inclined groove (54) is provided on the slide plate (51), and the top of the slide plate (51) is rotatably connected to the bottom of the limit bolt (4); An anchor plate (52), the anchor plate (52) being slidably connected to the inner wall of the through opening (2); A limiting column (53), one end of which is fixedly mounted on the side wall of the anchor plate (52), and the other end of which is attached to the inner wall of the inclined groove (54).

2. A pile foundation reinforcement device according to claim 1, characterized in that: The auxiliary mechanism (6) comprises a side plate (61), the side plate (61) is slidably connected to the inner wall of the prefabricated pile (1), and a slope block (62) is fixedly mounted on the side wall of the side plate (61).

3. A pile foundation reinforcement device according to claim 1, characterized in that: The inner wall of the anchor plate (52) is slidably connected to a slide rod (63), and a through hole (66) is provided on the anchor plate (52).

4. A pile foundation reinforcement device according to claim 3, characterized in that: An anchor rod (64) is fixedly mounted on one side of the sliding rod (63), and a push rod (65) is fixedly mounted on the other side of the sliding rod (63).

5. A pile foundation reinforcement device according to claim 4, characterized in that: One end of the push rod (65) away from the slide rod (63) penetrates the anchor plate (52) and fits on the outer wall of the inclined surface block (62), and the slide rod (63) is slidably connected to the penetration point of the anchor plate (52).

6. A pile foundation reinforcement device according to claim 2, characterized in that: The top of the side plate (61) is rotatably connected to the bottom of the fastening bolt (3).

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