Building foundation reinforcing protection structure and construction method thereof

Abstract

The invention relates to the technical field of civil engineering, in particular to a building foundation reinforcing protection structure and a construction method thereof.The structure comprises a precast pile foundation, a reinforcing assembly, a supporting assembly and a drainage assembly; the precast pile foundations are arranged in the pile pressing grooves, and the reinforcing assemblies are arranged at the bottoms of the precast pile foundations and stretch into the ground together with the precast pile foundations; one end of the supporting assembly is fixed to the side wall of the pile pressing groove, and the other end of the supporting assembly is fixed to the prefabricated pile foundation. The other end of the drainage assembly is inserted into the bottom of the side wall of the pile pressing groove. The reinforcing assembly connected with the precast pile foundation is arranged, after the precast pile foundation is driven into the ground, the first extension arm and the second extension arm are driven by the driving motor to jack the barrier plate from the inside and extend out of the reinforcing cavity to be inserted into the stratum, and the contact area of the pile foundation and the ground is increased; the supporting assemblies form stable supporting triangles on the two sides of the prefabricated pile foundation through the inclined supporting spring damping rods and the transverse supporting spring damping rods, and then the stability of the pile foundation is improved.

Description

Technical Field

[0001] The invention relates to the technical field of civil engineering, and in particular to a building foundation reinforcement protection structure and a construction method thereof. Background Art

[0002] Before the construction of a building, or when rectifying the deviation, adding floors, or adding piles, pile foundations are usually used for fixing or reinforcement. Pile foundations are a method of using the building's own weight to press steel pipe piles or prefabricated piles into the bottom layer to reinforce the building's foundation.

[0003] At present, in most construction sites, when the pile foundation is buried in the ground, the bottom is very easy to lose its grip, and when the geology of the construction site is slightly loose, the pile foundation is prone to tilt during use, and the stability of the pile foundation is poor. In addition, the existing pile foundation has a small diameter and a simple structure. On rainy days, the soil around the pile foundation is easily eroded by rainwater, causing the soil to become soft and easily causing the soil under the pile foundation to collapse, resulting in the pile foundation being unstable and collapsing.

[0004] Therefore, there is an urgent need for a building foundation reinforcement protection structure and a construction method thereof. Summary of the invention

[0005] In order to avoid the above problems existing in the prior art, the object of the present invention is to provide a building foundation reinforcement protection structure and a construction method thereof.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a building foundation reinforcement and protection structure, comprising a prefabricated pile foundation, a reinforcement assembly, a support assembly and a drainage assembly; the prefabricated pile foundation is arranged in a pile driving groove, and at least one group of the reinforcement assembly is arranged at the bottom of the prefabricated pile foundation and extends into the ground together with the prefabricated pile foundation; one end of the support assembly is fixed to the side wall of the pile driving groove, and the other end is fixed to the prefabricated pile foundation; one end of the drainage assembly is connected to the prefabricated pile foundation, and the other end is inserted into the bottom of the side wall of the pile driving groove.

[0007] The present invention is further configured such that the reinforcement assembly includes a reinforcement cavity, a driving assembly and a reinforcement arm assembly; extension holes are provided on both sides of the reinforcement cavity; the driving assembly is provided inside the reinforcement cavity, the reinforcement arm assembly is connected to the driving assembly, and is driven by the driving assembly to extend out of the reinforcement cavity along the extension hole.

[0008] The present invention is further configured such that the driving assembly includes a driving motor, a bearing seat and a screw; the bearing seat includes a first bearing seat and a second bearing seat, the first bearing seat is arranged at the top end inside the reinforcement cavity, the second bearing seat is arranged at the bottom end inside the reinforcement cavity, and the screw is rotatably connected to the first bearing seat and the second bearing seat; the driving motor is connected to the screw.

[0009] The present invention is further configured that the reinforcement arm assembly comprises a slider, a first extension arm and a second extension arm, and the slider is arranged on the screw rod;

[0010] The first extending arm comprises a first upper connecting arm and a first lower connecting arm; one end of the first upper connecting arm is connected to the slider, and the other end is hinged to the first lower connecting arm, and the other end of the first lower connecting arm is hinged to the second bearing seat;

[0011] The second extending arm includes a second upper connecting arm and a second lower connecting arm; one end of the second upper connecting arm is connected to the slider, and the other end is hinged to the second lower connecting arm, and the other end of the second lower connecting arm is hinged to the second bearing seat.

[0012] The present invention is further configured such that a blocking plate is also provided at the extension hole, the blocking plate is rotatably connected to the upper end of the extension hole, and a stopper is provided on the inner side of the lower end of the extension hole.

[0013] The blocking plate is combined with the internal block to prevent the surrounding soil from entering the reinforcement cavity from the outside and causing damage to the equipment during the lowering of the prefabricated pile foundation; when the driving motor is started, the slider moves and squeezes the first extension arm and the second extension arm, so that the blocking plate is pushed open from the inside and extends out of the reinforcement cavity.

[0014] The present invention is further configured such that the driving component further includes a power supply and a time delay relay, and the power supply and the time delay relay are respectively connected to the driving motor.

[0015] The present invention is further configured such that a connecting rod is provided at a connection end between the reinforcement cavity and the prefabricated pile foundation, and a plurality of transverse anchor rods are provided on the connecting rod.

[0016] The connecting rods and the transverse anchor rods increase the contact with the precast pile foundation, making the connection between the reinforcement component and the precast pile foundation more firmly when the precast mold is poured.

[0017] The present invention is further configured such that the support assembly is arranged on both sides of the prefabricated pile foundation; the support assembly includes an oblique support spring damping rod and a transverse support spring damping rod; one end of the oblique support spring damping rod and the transverse support spring damping rod are respectively connected to the side walls of the pile driving groove, and the other end are respectively connected to the prefabricated pile foundation.

[0018] The diagonal brace spring damping rod and the transverse brace spring damping rod form a stable supporting triangle on both sides of the precast pile foundation to assist in supporting the precast pile foundation.

[0019] The present invention is further configured such that the drainage component is arranged at the bottom of the pile driving groove; the drainage component includes a steel plate, one end of which is connected to the prefabricated pile foundation, and the other end is provided with a plurality of drainage grooves; the drainage grooves are inserted into the lowermost ends of the two side walls of the pile driving groove.

[0020] The steel plate can be connected to the prefabricated pile foundation by conventional connection methods such as bolt connection. On the one hand, the steel plate can prevent rainwater from penetrating the bottom of the pile foundation and drain the rainwater to both sides of the pile foundation through the drainage groove; on the other hand, the connection with the prefabricated pile foundation can also increase the contact area between the pile foundation and the ground, thereby stabilizing the pile foundation.

[0021] The present invention also includes a building foundation reinforcement construction method, which is used in conjunction with the above-mentioned building foundation reinforcement protection structure, and includes the following steps:

[0022] S1: placing a reinforcement component at a preset position of a prefabricated pile foundation mold, casting and molding, and fixing the prefabricated pile foundation and the reinforcement component;

[0023] S2: excavating a pile-pressing groove on the ground, determining the construction position of the prefabricated pile foundation in the pile-pressing groove, and driving the prefabricated pile foundation into the ground;

[0024] S3: After the prefabricated pile foundation is driven into the preset position, the driving motor is started to drive the screw to rotate, so that the first extension arm and the second extension arm pass through the extension hole and are inserted into the ground layer; the contact area between the pile foundation and the ground is indirectly increased, thereby improving the stability of the prefabricated pile foundation;

[0025] S4: After drilling a drainage hole at the bottom of the side wall of the pile driving groove, a steel plate is installed, one end of the steel plate provided with a drainage groove is inserted into the drainage hole, and the other end is connected to the prefabricated pile foundation;

[0026] S5: Install the diagonal spring damping rod and the transverse spring damping rod between the side wall of the pile driving groove and the prefabricated pile foundation, so that the diagonal spring damping rod, the transverse spring damping rod and the prefabricated pile foundation form a triangular support structure.

[0027] In summary, the beneficial effects of the above technical solution of the present invention are as follows:

[0028] 1. The present invention is provided with a reinforcement component connected to the prefabricated pile foundation, so that after the prefabricated pile foundation is driven into the ground, a driving motor drives an extension arm and a second extension arm to push open the blocking plate from the inside, extend out of the reinforcement cavity and insert into the stratum; indirectly increasing the contact area between the pile foundation and the ground, thereby improving the stability of the pile foundation.

[0029] 2. The present invention is provided with a drainage component, which can prevent rainwater from penetrating the bottom of the pile foundation on the one hand, and drain the rainwater to both sides of the pile foundation through the drainage groove; on the other hand, it is connected with the prefabricated pile foundation to increase the contact area between the pile foundation and the ground, thereby stabilizing the pile foundation.

[0030] 3. The support assembly forms a stable support triangle on both sides of the prefabricated pile foundation through the diagonal spring damping rod and the transverse spring damping rod to assist in supporting the prefabricated pile foundation. The spring damping rod can also play a shock-absorbing effect and increase the seismic resistance of the building foundation reinforcement protection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0032] Figure 1 This is a schematic diagram of the overall structure of the building foundation reinforcement protection structure.

[0033] Figure 2 This is a schematic diagram of the reinforcement component structure.

[0034] Figure 3 Schematic diagram of the reinforcement component set in the middle of the prefabricated pile foundation.

[0035] In the accompanying drawings, the meanings of the reference numerals are as follows:

[0036] 100, prefabricated pile foundation, 200, pile groove;

[0037] 300, steel plate, 301, drainage groove;

[0038] 400, reinforcement assembly, 401, reinforcement cavity, 402, first bearing seat, 403, second bearing seat, 404, slider, 405, screw rod, 406, first upper connecting arm, 407, first lower connecting arm, 408, extension hole, 409, blocking plate, 410, stopper, 411, power supply, 412, connecting rod, 413, horizontal anchor rod;

[0039] 501, diagonal brace spring damping rod, 502, transverse brace spring damping rod. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the accompanying drawings of the present invention. Based on the embodiments of the present invention, other similar embodiments obtained by ordinary technicians in the field without making any creative work should all fall within the scope of protection of the present invention.

[0041] The present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments.

[0042] Embodiment 1:

[0043] like Figure 1-Figure 2As shown, a preferred embodiment of the present invention is a building foundation reinforcement protection structure, comprising a prefabricated pile foundation 100, a reinforcement component 400, a support component and a drainage component; the prefabricated pile foundation 100 is arranged in a pile driving groove 200, and the reinforcement component 400 is arranged at the bottom of the prefabricated pile foundation 100 and extends into the ground together with the prefabricated pile foundation 100; one end of the support component is fixed to the side wall of the pile driving groove 200, and the other end is fixed to the prefabricated pile foundation 100; one end of the drainage component is connected to the prefabricated pile foundation 100, and the other end is inserted into the bottom of the side wall of the pile driving groove 200.

[0044] like Figure 2 As shown, the reinforcement assembly 400 includes a reinforcement cavity 401, a driving assembly and a reinforcement arm assembly; extension holes 408 are provided on both sides of the reinforcement cavity 401; the driving assembly is disposed inside the reinforcement cavity 401, the reinforcement arm assembly is connected to the driving assembly, and is driven by the driving assembly to extend out of the reinforcement cavity 401 along the extension hole 408.

[0045] The driving assembly includes a driving motor, a bearing seat and a lead screw 405; the bearing seat includes a first bearing seat 402 and a second bearing seat 403, the first bearing seat 402 is arranged at the top end inside the reinforcement cavity 401, the second bearing seat 403 is arranged at the bottom end inside the reinforcement cavity 401, and the lead screw 405 is rotatably connected with the first bearing seat 402 and the second bearing seat 403; the output end of the driving motor is connected with the lead screw 405. In this embodiment, the driving motor is arranged in the first bearing seat 402.

[0046] The reinforcement arm assembly includes a slider 404, a first extension arm and a second extension arm, wherein the slider 404 is disposed on the screw rod 405; the first extension arm includes a first upper connecting arm 406 and a first lower connecting arm 407; one end of the first upper connecting arm 406 is connected to the slider 404, and the other end is hinged to the first lower connecting arm 407, and the other end of the first lower connecting arm 407 is hinged to the second bearing seat 403;

[0047] The second extension arm has the same structure as the first extension arm, including a second upper connecting arm and a second lower connecting arm; one end of the second upper connecting arm is connected to the slider, and the other end is hinged to the second lower connecting arm, and the other end of the second lower connecting arm is hinged to the second bearing seat 403. The second extension arm and the first extension arm are symmetrically arranged with the screw rod 405 as the center.

[0048] A blocking plate 409 is also provided at the extending hole 408 , and the blocking plate 409 is rotatably connected to the upper end of the extending hole 408 . A stopper 410 is provided on the inner side of the lower end of the extending hole 408 .

[0049] The blocking plate 409 is arranged in combination with the internal block 410 to prevent the surrounding soil from entering the reinforcement cavity 401 from the outside and causing damage to the equipment during the lowering process of the prefabricated pile foundation 100; when the driving motor starts and drives the screw rod 405 to rotate, the slider 404 moves from top to bottom and squeezes the first extending arm and the second extending arm, so that the blocking plate 409 is pushed open from the inside and extends out of the reinforcement cavity 401.

[0050] The driving assembly also includes a power supply 411 and a time delay relay, which are arranged inside the reinforcement cavity 401 and are respectively connected to the driving motor. The time delay relay controls the driving motor to start after a preset time has passed, so that the prefabricated pile foundation is lowered into the ground, and the reinforcement arm assembly extends out of the reinforcement cavity.

[0051] A connecting rod 412 is provided at the connection end between the reinforcement cavity 401 and the prefabricated pile foundation 100 , and a plurality of transverse anchor rods 413 are provided on the connecting rod 412 .

[0052] The connecting rod 412 and the horizontal anchor rod 413 increase the contact with the precast pile foundation, so that the connection between the reinforcement component 400 and the precast pile foundation 100 is more firmly established when the precast mold is cast.

[0053] The reinforcement assembly 400 can be provided in plurality on the prefabricated pile foundation 100 according to actual engineering requirements. When the reinforcement assembly 400 is provided in the middle of the prefabricated pile foundation 100, Figure 3 As shown, connecting rods 412 and transverse anchor rods 413 are provided at both upper and lower ends of the reinforcement cavity 401 .

[0054] The support assembly is arranged on both sides of the prefabricated pile foundation 100; the support assembly includes an oblique support spring damping rod 501 and a transverse support spring damping rod 502; one end of the oblique support spring damping rod 501 and the transverse support spring damping rod 502 are respectively connected to the side wall of the pile driving groove 200, and the other end is respectively connected to the prefabricated pile foundation 100.

[0055] The diagonal spring damping rod 501 and the transverse spring damping rod 502 form a stable supporting triangle on both sides of the prefabricated pile foundation 100 to assist in supporting the prefabricated pile foundation 100 .

[0056] The drainage assembly is arranged at the bottom of the pile driving groove 200; the drainage assembly includes a steel plate 300, one end of which is connected to the prefabricated pile foundation 100, and the other end is provided with a plurality of drainage grooves 301; the drainage grooves 301 are inserted into the lowermost end of the side wall of the pile driving groove 200.

[0057] The steel plate 300 can be connected to the prefabricated pile foundation 100 by conventional connection methods such as bolt connection. On the one hand, the steel plate 300 can prevent rainwater from penetrating the bottom of the pile foundation and drain the rainwater to both sides of the pile foundation through the drainage groove 301; on the other hand, the connection between the steel plate 300 and the prefabricated pile foundation 100 can also increase the contact area between the prefabricated pile foundation 100 and the ground, thereby stabilizing the prefabricated pile foundation 100.

[0058] Embodiment 2:

[0059] A building foundation reinforcement construction method, used in conjunction with the above-mentioned building foundation reinforcement protection structure, comprises the following steps:

[0060] S1: placing a reinforcement component 400 at a preset position of a prefabricated pile foundation mold, casting and molding, so that the prefabricated pile foundation 100 is fixedly connected to the reinforcement component 400;

[0061] S2: excavating a pile-pressing groove 200 on the ground, determining the construction position of the prefabricated pile foundation 100 in the pile-pressing groove 200, and driving the prefabricated pile foundation 100 into the ground;

[0062] S3: After the prefabricated pile foundation 100 is driven into the preset position, the driving motor is started to drive the screw 405 to rotate, so that the first extension arm and the second extension arm pass through the extension hole 408 and insert into the ground, which indirectly increases the contact area between the prefabricated pile foundation 100 and the ground, thereby improving the stability of the prefabricated pile foundation 100;

[0063] S4: After drilling a drainage hole at the bottom of the side wall of the pile driving groove 200, a steel plate 300 is installed. One end of the steel plate 300 provided with a drainage groove 301 is inserted into the drainage hole, and the other end is connected to the prefabricated pile foundation 100;

[0064] S5: Install the diagonal spring damping rod 501 and the transverse spring damping rod 502 between the side wall of the pile driving groove 200 and the prefabricated pile foundation 100, so that the diagonal spring damping rod 501, the transverse spring damping rod 502 and the prefabricated pile foundation 100 form a triangular support structure.

[0065] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A building foundation reinforcement protection structure, characterized in that: It includes a prefabricated pile foundation, a reinforcement component, a support component and a drainage component; the prefabricated pile foundation is arranged in a pile driving groove, and the reinforcement component is at least one group, and the reinforcement component is arranged at the bottom of the prefabricated pile foundation and extends into the ground together with the prefabricated pile foundation; one end of the support component is fixed to the side wall of the pile driving groove, and the other end is fixed to the prefabricated pile foundation; one end of the drainage component is connected to the prefabricated pile foundation, and the other end is inserted into the bottom of the side wall of the pile driving groove.

2. A building foundation reinforcement protection structure according to claim 1, characterized in that: The reinforcement assembly includes a reinforcement cavity, a driving assembly and a reinforcement arm assembly; extension holes are provided on both sides of the reinforcement cavity; the driving assembly is arranged inside the reinforcement cavity, the reinforcement arm assembly is connected to the driving assembly, and is driven by the driving assembly to extend out of the reinforcement cavity along the extension hole.

3. A building foundation reinforcement protection structure according to claim 2, characterized in that: The driving assembly includes a driving motor, a bearing seat and a screw; the bearing seat includes a first bearing seat and a second bearing seat, the first bearing seat is arranged at the top end inside the reinforcement cavity, and the second bearing seat is arranged at the bottom end inside the reinforcement cavity, and the screw is rotatably connected to the first bearing seat and the second bearing seat; the driving motor is connected to the screw.

4. A building foundation reinforcement protection structure according to claim 3, characterized in that: The reinforcement arm assembly comprises a slider, a first extension arm and a second extension arm, and the slider is arranged on the screw rod; The first extending arm comprises a first upper connecting arm and a first lower connecting arm; one end of the first upper connecting arm is connected to the slider, and the other end is hinged to the first lower connecting arm, and the other end of the first lower connecting arm is hinged to the second bearing seat; The second extending arm includes a second upper connecting arm and a second lower connecting arm; one end of the second upper connecting arm is connected to the slider, and the other end is hinged to the second lower connecting arm, and the other end of the second lower connecting arm is hinged to the second bearing seat.

5. A building foundation reinforcement protection structure according to claim 4, characterized in that: A blocking plate is also arranged at the extending hole, and the blocking plate is rotatably connected to the upper end of the extending hole, and a stopper is arranged on the inner side of the lower end of the extending hole.

6. A building foundation reinforcement protection structure according to claim 5, characterized in that: The driving component also includes a power supply and a time delay relay, and the power supply and the time delay relay are respectively connected to the driving motor.

7. A building foundation reinforcement protection structure according to claim 6, characterized in that: A connecting rod is provided at the connecting end between the reinforcement cavity and the prefabricated pile foundation, and a plurality of transverse anchor rods are provided on the connecting rod.

8. A building foundation reinforcement protection structure according to claim 7, characterized in that: The support assembly is arranged on both sides of the prefabricated pile foundation; the support assembly includes an oblique support spring damping rod and a transverse support spring damping rod; one end of the oblique support spring damping rod and the transverse support spring damping rod are respectively connected to the side wall of the pile driving groove, and the other end is respectively connected to the prefabricated pile foundation.

9. A building foundation reinforcement protection structure according to claim 8, characterized in that: The drainage assembly includes a steel plate, one end of which is connected to the prefabricated pile foundation, and the other end of which is provided with a plurality of drainage grooves; the drainage grooves are inserted into the lowermost ends of the two side walls of the pile pressing groove.

10. A construction method for reinforcing a building foundation, used in conjunction with a building foundation reinforcement protection structure as claimed in claim 9, characterized in that: The following steps are involved: S1: placing a reinforcement component at a preset position of a prefabricated pile foundation mold, casting and molding, and fixing the prefabricated pile foundation and the reinforcement component; S2: excavating a pile-pressing groove on the ground, determining the construction position of the prefabricated pile foundation in the pile-pressing groove, and driving the prefabricated pile foundation into the ground; S3: After the prefabricated pile foundation is driven into the preset position, the driving motor is started to drive the screw to rotate, so that the first extension arm and the second extension arm pass through the extension hole and are inserted into the stratum; S4: After drilling a drainage hole at the bottom of the side wall of the pile driving groove, a drainage assembly is installed, wherein one end of the drainage groove of the drainage assembly is inserted into the drainage hole, and the other end is connected to the prefabricated pile foundation; S5: Install the diagonal spring damping rod and the transverse spring damping rod between the side wall of the pile driving groove and the prefabricated pile foundation, so that the diagonal spring damping rod, the transverse spring damping rod and the prefabricated pile foundation form a triangular support structure.

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