Pile foundation construction platform with stable limiting structure and pile foundation construction method

Abstract

The invention discloses a pile foundation construction platform with a stable limiting structure and a pile foundation construction method. The pile foundation construction platform comprises a base, a platform body and a plurality of inserting columns. The plurality of inserting columns are uniformly arranged below the base; a stable limiting mechanism is arranged in each inserting column; the stable limiting mechanism comprises a screw rod, a first bearing and at least one group of telescopic mechanisms; the lower end of the screw is inserted into the bearing; the upper end of the screw extends out of the inserting column and penetrates through the base; each telescopic mechanism comprises a displacement block, a plurality of horizontal inserting rods and a plurality of connecting rods; the displacement block is in threaded connection with the screw rod; each connecting rod is hinged to a displacement block and a corresponding horizontal insertion rod; a plurality of extending holes corresponding to the horizontal inserting rods are formed in the side wall of the inserting column, and each horizontal inserting rod is partially located in the corresponding extending hole and can extend out of the extending hole under the rotation effect of the screw. According to the pile foundation construction platform, the stability of the pile foundation construction platform can be enhanced, the cast pile foundation is prevented from deviating, and the construction quality can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pile foundation construction, and particularly relates to a pile foundation construction platform with a stable limiting structure and a pile foundation construction method. Background Art

[0002] A pile foundation is a commonly used foundation treatment method in civil engineering. By embedding piles in the foundation, the bearing capacity and stability of the foundation are increased. A pile foundation mainly consists of piles and a pile cap connecting the pile tops, which constitutes a form of deep foundation. Its main purpose is to transfer the load of a building to a soil layer with a larger bearing capacity deep in the foundation, or to improve the density and bearing capacity of the foundation by compacting soft soil layers. Summary of the Invention

[0003] In order to enrich the product types of pile foundation construction platforms and enhance the stability of pile foundation construction platforms, embodiments of the present invention provide a pile foundation construction platform with a stable limiting structure and a pile foundation construction method.

[0004] In a first aspect, an embodiment of the present invention provides a pile foundation construction platform with a stable limiting structure, including a base, a platform body, a plurality of insertion columns, and a plurality of auxiliary adjustment mechanisms;

[0005] The platform body is disposed above the base, and the plurality of insertion columns are uniformly disposed below the base;

[0006] A stable limiting mechanism is disposed in each of the insertion columns;

[0007] The stable limiting mechanism includes a screw rod, a first bearing, and at least one set of telescopic mechanisms;

[0008] The first bearing is fixed to the bottom surface of the insertion column, and the lower end of the screw rod is inserted into the first bearing;

[0009] The upper end of the screw rod extends out of the insertion column and passes through the base;

[0010] Each telescopic mechanism includes a displacement block, a plurality of horizontal insertion rods, and a plurality of connecting rods; a threaded through hole is provided at the center of the displacement block and is threadedly connected to the screw rod; each connecting rod is respectively hinged to the displacement block and the corresponding horizontal insertion rod;

[0011] The end of the horizontal insertion rod away from the screw rod is provided as a cone, and a plurality of protruding holes corresponding to the horizontal insertion rods are provided on the side wall of the insertion column. The cone of each horizontal insertion rod is located in the corresponding protruding hole, and each horizontal insertion rod can partially extend out of the protruding hole under the rotation of the screw rod;

[0012] The plurality of auxiliary adjustment mechanisms are disposed on the upper surface of the platform body and are used for clamping the steel reinforcement cage.

[0013] In one or some alternative embodiments, the stable limiting mechanism further includes a plurality of limiting members;

[0014] Each of the limiting members is fixed to the inner wall of the insertion post and is located above the corresponding protruding hole;

[0015] The top of each of the horizontal insertion rods is provided with a chute, and the corresponding limiting member extends into the chute.

[0016] In one or some alternative embodiments, the stable limiting mechanism further includes a rotating handle and a pin;

[0017] The rotating handle is arranged at the top of the screw rod and is provided with a vertical through hole;

[0018] The base is provided with a counterbore, and the pin passes through the through hole and can be inserted into the counterbore.

[0019] In one or some alternative embodiments, a pile foundation hole for the steel reinforcement cage to pass through is provided at the centers of the platform body and the base;

[0020] The plurality of auxiliary adjusting mechanisms are evenly distributed around the pile foundation hole and are used to cooperate to clamp the steel reinforcement cage.

[0021] In one or some alternative embodiments, each of the auxiliary adjusting mechanisms includes a fixed frame, a transmission mechanism, and an abutting member;

[0022] The abutting member horizontally penetrates through the fixed frame and is used to abut against the steel reinforcement cage;

[0023] The transmission mechanism is in transmission connection with the abutting member and can drive the abutting member to move horizontally under the action of an external force.

[0024] In one or some alternative embodiments, the abutting member includes an arc-shaped abutting block and a rack;

[0025] The rack penetrates through the fixed frame;

[0026] The arc-shaped abutting block is fixedly connected to one end of the rack close to the center of the platform body;

[0027] The rack is in transmission connection with the transmission mechanism.

[0028] In one or some alternative embodiments, the transmission mechanism includes a rotating rod, a handwheel, a worm, a worm gear, and a gear;

[0029] The rotating rod is vertically arranged in the fixed frame and can rotate relative to the fixed frame;

[0030] The worm gear and the gear are sleeved on the rotating rod up and down and are fixedly connected to the rotating rod;

[0031] The worm gear meshes with the worm.

[0032] The hand wheel is fixedly connected to the worm.

[0033] The rack meshes with the gear.

[0034] In one or some alternative embodiments, the abutting member further includes two guide rods;

[0035] The ends of the two guide rods are fixedly connected to the arc-shaped abutting block, and the two guide rods are symmetrically arranged on both sides of the rack;

[0036] The fixed frame is provided with a first through hole and two second through holes, and the first through hole is located in the middle of the two second through holes;

[0037] The rack passes through the first through hole, and the two guide rods respectively pass through the corresponding second through holes.

[0038] In one or some alternative embodiments, the bottom of the insertion post is a cone with the tip facing downwards.

[0039] In a second aspect, an embodiment of the present invention provides a pile foundation construction method, which applies the pile foundation construction platform with a stable limiting structure in the first aspect, including:

[0040] Place the pile foundation construction platform with the stable limiting structure as a whole at the pile foundation construction position;

[0041] Insert a plurality of insertion posts into the ground to fix the pile foundation construction platform to the ground;

[0042] Rotate the screw rod so that all the horizontal insertion rods are horizontally inserted into the ground;

[0043] Lift and transport the steel reinforcement cage to the center of the platform body, and clamp the steel reinforcement cage through the auxiliary adjustment mechanism.

[0044] The beneficial effects of the above technical solutions provided in the embodiments of the present invention at least include:

[0045] For the pile foundation construction platform with a stable limiting structure provided in the embodiments of the present invention, the insertion posts can be inserted below the ground surface. By rotating the screw rod, the displacement block can move up and down relative to the screw rod, so as to change the angle formed between the connecting rod and the screw rod, so that the horizontal insertion rods extend outwards and are inserted into the ground under the push of the connecting rod, strengthening the connection stability between the insertion posts and the ground, thereby enhancing the stability of the pile foundation construction platform, reducing the shaking of the pile foundation construction platform caused by pouring concrete, preventing the poured pile foundation from shifting, bringing convenience to pile foundation construction, and also being beneficial to improving the construction quality.

[0046] Other features and advantages of the present invention will be described in the following specification, and in part will become apparent from the specification, or will be understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained by the structures specifically pointed out in the written specification and the drawings.

[0047] The technical solution of the present invention will be further described in detail below with reference to the drawings and embodiments. Description of the Drawings

[0048] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention. In the drawings:

[0049] Figure 1 is the front view of the pile foundation construction platform with a stable limiting structure provided by the embodiment of the present invention;

[0050] Figure 2 is the top view of the pile foundation construction platform with a stable limiting structure provided by the embodiment of the present invention;

[0051] Figure 3 is the structural schematic diagram of the stable limiting mechanism inside the insertion column provided by the embodiment of the present invention;

[0052] Figure 4 is the structural schematic diagram of the auxiliary adjustment mechanism provided by the embodiment of the present invention.

[0053] Reference Signs:

[0054] 1, base; 2, platform body; 3, insertion column; 4, stable limiting mechanism; 401, rotation handle; 402, screw rod; 403, displacement block; 404, horizontal insertion rod; 405, connecting rod; 406, limiting member; 407, insertion pin; 408, first bearing; 5, auxiliary adjustment mechanism; 501, fixed frame; 502, hand wheel; 503, worm; 504, rotating rod; 505, worm gear; 506, gear; 507, rack; 508, guiding rod; 509, arc-shaped abutting block; 510, second bearing. Detailed Embodiments

[0055] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0056] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "far", "near", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0057] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0058] The inventor found that the existing pile foundation construction platform often shakes during use, resulting in offset during pile foundation pouring and not meeting the inventor's expectations. After further research, it was found that the reason for this problem is that the pile foundation construction platform is only fixed by inserting the plug columns at the bottom end of the platform into the ground. When pouring concrete on the pile foundation construction platform, vibration is likely to occur. If the fixation is not firm, the pile foundation construction platform will shake during use, resulting in offset of the poured pile foundation, bringing inconvenience to pile foundation construction and also being unfavorable for ensuring the construction quality. To solve this problem, the inventor tried to increase the weight of the pile foundation construction platform, but this also led to inconvenient transportation and the effect was still not ideal. After continuous research, it was unexpectedly found that limiting the plug columns underground can effectively reduce vibration.

[0059] Based on this, the embodiments of the present invention provide a pile foundation construction platform with a stable limiting structure and a pile foundation construction method, which will be described in detail through specific embodiments below.

[0060] Embodiment 1

[0061] The embodiments of the present invention provide a pile foundation construction platform with a stable limiting structure. Referring to Figures 1-3 as shown, it includes a base 1, a platform body 2, a plurality of plug columns 3 and a plurality of auxiliary adjustment mechanisms 5;

[0062] The platform body 2 is arranged above the base 1, and the plurality of plug columns 3 are uniformly arranged below the base 1;

[0063] A stable limiting mechanism 4 is arranged in each of the plug columns 3;

[0064] The stable limiting mechanism 4 includes a screw rod 402, a first bearing 408 and at least one set of telescopic mechanisms;

[0065] The first bearing 408 is fixed to the bottom surface of the plug column 3, and the lower end of the screw rod 402 is inserted into the first bearing 408;

[0066] The upper end of the screw rod 402 extends out of the plug column 3 and passes through the base 1;

[0067] Each telescopic mechanism includes a displacement block 403, a plurality of horizontal insertion rods 404 and a plurality of connecting rods 405; a threaded through hole is arranged at the center of the displacement block 403 and is threadedly connected with the screw rod 402; each connecting rod 405 is respectively hinged to the displacement block 403 and the corresponding horizontal insertion rod 404;

[0068] The end of the horizontal insertion rod 404 far from the screw rod 402 is set as a cone, and a plurality of protruding holes corresponding to the horizontal insertion rod 404 are arranged on the side wall of the plug column 3. The tip of each horizontal insertion rod 404 is located in the corresponding protruding hole, and each horizontal insertion rod 404 can partially extend out of the protruding hole under the rotation action of the screw rod 402;

[0069] The plurality of auxiliary adjusting mechanisms 5 are arranged on the upper surface of the platform body 2 and are used for clamping the steel reinforcement cage.

[0070] In the embodiment of the present invention, referring to Figure 3 As shown, a first bearing 408 is fixed at the bottom inside the plug column 3, and the lower end of the screw rod 402 is inserted into the first bearing 408, so that it can rotate relative to the plug column 3 inside the plug column 3. The top of the screw rod 402 extends out of the base 1, and the screw rod 402 can be rotated by screwing the top of the screw rod 402.

[0071] In the embodiment of the present invention, referring to Figure 3 As shown, the end of the horizontal insertion rod 404 far from the screw rod 402 is a cone, and the cone is located in the protruding hole, so as to facilitate insertion into the formation. The cone of the horizontal insertion rod 404 is limited in the protruding hole. When the screw rod 402 rotates, the telescopic mechanism cannot rotate therewith. Since the displacement block 403 is threadedly connected with the screw rod 402, the rotation of the screw rod 402 will cause the displacement block 403 to move up and down relative to the screw rod 402. When the displacement block 403 moves up, the connecting rod 405 will be forced to expand outwards, thereby pushing the horizontal insertion rod 404 to extend out of the plug column 3.

[0072] In the embodiment of the present invention, referring to Figure 1 and Figure 3As shown, each telescopic mechanism may include four horizontal insertion rods 404 and four connecting rods 405. The four connecting rods 405 are evenly distributed around the displacement block 403. After the four horizontal insertion rods 404 respectively extend out of the corresponding extension holes, a "cross shape" is formed, providing uniform resistance to the insertion column 3 and improving the stability of the pile foundation construction platform during the construction process.

[0073] For the pile foundation construction platform with a stable limiting structure provided by the embodiment of the present invention, the insertion column 3 can be inserted below the ground. By rotating the screw rod 402, the displacement block 403 can move up and down relative to the screw rod 402, thereby changing the angle formed between the connecting rod 405 and the screw rod 402, so that the horizontal insertion rod 404 extends outwards and inserts into the ground under the push of the connecting rod 405, strengthening the connection stability between the insertion column 3 and the ground, thus enhancing the stability of the pile foundation construction platform, reducing the shaking of the pile foundation construction platform caused by pouring concrete, preventing the poured pile foundation from shifting, bringing convenience to pile foundation construction, and also being beneficial to improving the construction quality.

[0074] In a specific embodiment, referring to Figure 1 and Figure 2 as shown, the base 1 is square, and the number of insertion columns 3 can be set to four, which are respectively arranged at the four corners of the base 1 to ensure uniform force and stable placement.

[0075] In a specific embodiment, referring to Figure 1 and Figure 3 as shown, the number of telescopic mechanisms can be set to two or more, and there is a certain distance between adjacent two telescopic mechanisms longitudinally to ensure uniform force.

[0076] In a specific embodiment, referring to Figure 1 and Figure 3 as shown, the hinged connection between the connecting rod 405 and the horizontal insertion rod 404 and the displacement block 403 can be realized through ear plates. Specifically, ear plates are respectively fixed at the corresponding positions of the horizontal insertion rod 404 and the displacement block 403, a rotating shaft is passed through the middle of the ear plates, and both ends of the connecting rod 405 are respectively sleeved on the rotating shaft, thereby realizing the hinged connection.

[0077] In an alternative embodiment, referring to Figure 1 and Figure 3 as shown, the stable limiting mechanism 4 further includes a plurality of limiting members 406, and the specific number thereof corresponds to the number of horizontal insertion rods 404. Each limiting member 406 is fixed on the inner wall of the insertion column 3 and is located above the corresponding extension hole. A chute is provided at the top of the horizontal insertion rod 404, and the limiting member 406 extends into the corresponding chute to limit the distance that the horizontal insertion rod 404 extends out of the insertion column 3, preventing the entire horizontal insertion rod 404 and the connecting rod 405 connected thereto from extending out of the extension hole, thereby avoiding the difficulty in retracting the horizontal insertion rod 404, and also avoiding mud chips, rock chips, etc. in the formation from entering the insertion column 3.

[0078] In an alternative embodiment, referring to Figure 1 and Figure 3 as shown, the stable limiting mechanism 4 further includes a rotating handle 401 and a pin 407. Among them, the rotating handle 401 is arranged at the top end of the screw rod 402, facilitating grasping and applying force when rotating the screw rod 402. The rotating handle 401 is provided with a vertical through hole, and the base 1 is provided with a counterbore. The pin 407 passes through the through hole and is inserted into the counterbore, so as to be able to fix the rotating handle 401 rotated to the target position and prevent the screw rod 402 from rotating back, causing the horizontal insertion rod 404 to retract.

[0079] In the embodiment of the present invention, referring to Figure 1 and Figure 3 as shown, the bottom of the plug post 3 is a cone with the tip facing downwards, facilitating insertion into the ground.

[0080] In the embodiment of the present invention, referring to Figure 1 and Figure 2 as shown, the number of the auxiliary adjustment mechanisms 5 can be four to ensure uniform force. Specifically, a pile foundation hole through which the steel reinforcement cage can pass is provided at the centers of the platform body 2 and the base 1, and a plurality of auxiliary adjustment mechanisms 5 are evenly distributed around the pile foundation hole and are used to cooperate with clamping the steel reinforcement cage, that is, the steel reinforcement cage can be clamped by moving a plurality of auxiliary adjustment mechanisms 5 together towards the center direction of the pile foundation hole until they abut against the steel reinforcement cage.

[0081] In the embodiment of the present invention, referring to Figure 1 , Figure 2 and Figure 4 as shown, each auxiliary adjustment mechanism 5 may include a fixed frame 501, a transmission mechanism, and an abutting member. Among them, the abutting member horizontally penetrates the fixed frame 501 and can horizontally move relative to the fixed frame 501 for abutting against the steel reinforcement cage. When a plurality of abutting members simultaneously abut tightly against the steel reinforcement cage, the steel reinforcement cage can be clamped; the transmission mechanism is in transmission connection with the abutting member and can drive the abutting member to horizontally move under the action of an external force so that the abutting member abuts against the steel reinforcement cage or retracts.

[0082] In an alternative embodiment, referring to Figure 1 , Figure 2 and Figure 4As shown, the abutment member includes an arc-shaped abutment block 509 and a rack 507. The rack 507 is inserted through the fixed frame 501, and the arc-shaped abutment block 509 is fixedly connected to one end of the rack 507 close to the center of the platform body 2, and the rack 507 can move horizontally relative to the fixed frame 501, so that the arc-shaped abutment block 509 can abut the steel cage. The arc-shaped abutment block 509 can match the shape of the steel cage, which is more convenient for clamping the steel cage than the linear abutment surface. The rack 507 is connected to the transmission mechanism, and by applying external force to the transmission mechanism, the rack 507 can be pushed forward or backward, thereby clamping or releasing the steel cage.

[0083] In an alternative embodiment, referring to Figure 1 , Figure 2 and Figure 4 As shown, the transmission mechanism includes a rotating rod 504, a hand wheel 502, a worm 503, a worm wheel 505 and a gear 506. The rotating rod 504 is vertically arranged in the fixed frame 501 and can rotate relative to the fixed frame 501; the worm wheel 505 and the gear 506 are respectively sleeved on the rotating rod 504 from top to bottom and fixedly connected to the rotating rod 504, and the worm wheel 505 and the gear 506 will rotate synchronously with the rotating rod 504; the worm wheel 505 is meshed with the worm 503, and the hand wheel 502 is fixedly connected to the worm 503, and the worm 503 can be driven to rotate by turning the hand wheel 502, and the worm 503 transmits power to the worm wheel 505, so that the worm wheel 505 rotates accordingly; because the worm wheel 505 and the gear 506 are fixedly connected to the rotating rod 504, after the hand wheel 502 is turned to rotate the worm wheel 505, the rotating rod 504 and the gear 506 will also rotate synchronously accordingly. The rack 507 meshes with the gear 506, and the gear 506 can transmit power to the rack 507, and based on the principle of the rack and pinion mechanism, the circumferential motion of the gear 506 is converted into the axial motion of the rack 507, so that the rack 507 moves forward or backward, thereby clamping or releasing the steel cage.

[0084] In a specific embodiment, referring to Figure 1 , Figure 2 and Figure 4 As shown, the transmission mechanism may further include two second bearings 510 , which are respectively fixed to the top and bottom surfaces inside the fixed frame 501 , and the two ends of the rotating rod 504 are respectively inserted into the upper and lower second bearings 510 , so that the rotating rod 504 can stably rotate in the fixed frame 501 .

[0085] In a specific embodiment, the worm wheel 505 and the gear 506 may be fixedly connected to the rotating rod 504 by welding, thereby ensuring a stable connection.

[0086] In an alternative embodiment, referring to Figure 1 , Figure 2 and Figure 4As shown, the abutting member further includes two guide rods 508. The ends of the two guide rods 508 are fixedly connected to the arc-shaped abutting block 509, and the two guide rods 508 are symmetrically arranged on both sides of the rack 507. Further, the fixed frame 501 is provided with a first through hole and two second through holes. The first through hole is located in the middle of the two second through holes. The rack 507 passes through the first through hole, and the two guide rods 508 respectively pass through the corresponding second through holes. On the one hand, it can prevent the arc-shaped abutting block 509 from tilting due to the rotation of the rack 507 relative to the fixed frame 501, ensuring that the arc-shaped abutting block 509 is always in a horizontal state. On the other hand, it can prevent the rack 507 from tilting to the left and right when moving forward or backward, ensuring that the arc-shaped abutting block 509 can tightly abut against the steel reinforcement cage, improving the construction efficiency.

[0087] In the pile foundation construction platform with a stable limiting structure provided by the embodiment of the present invention, by turning the handwheel 502, the worm 503 can be rotated, thereby driving the worm wheel 505, the rotating rod 504 and the gear 506 to rotate together. The rotation of the gear 506 drives the axial movement of the rack 507, so that the arc-shaped abutting block 509 moves forward or backward. The arc-shaped abutting blocks 509 in different directions move together towards the center of the pile foundation hole, realizing the clamping of steel reinforcement cages of different sizes, thus facilitating the construction and improving the stability of the steel reinforcement cage and the construction efficiency.

[0088] In an alternative embodiment, the specific process of using the pile foundation construction platform with a stable limiting structure provided by the embodiment of the present invention for pile foundation construction may include:

[0089] Place the pile foundation construction platform with a stable limiting structure as a whole at the pile foundation construction position;

[0090] Insert a plurality of insertion columns 3 into the ground to fix the pile foundation construction platform to the ground;

[0091] For each stable limiting mechanism 4, hold the rotating handle 401 tightly and rotate the screw rod 402 so that all the horizontal insertion rods 404 are horizontally inserted into the ground to enhance the stability of the pile foundation construction platform;

[0092] Keep the arc-shaped abutting blocks 509 of the plurality of auxiliary adjustment mechanisms 5 close to the fixed frame 501 to avoid interfering with the pile foundation hole;

[0093] Lift and transport the steel reinforcement cage into the pile foundation hole and keep the upper end of the steel reinforcement cage higher than the auxiliary adjustment mechanism 5;

[0094] Synchronously rotate the handwheels 502 of multiple auxiliary adjustment mechanisms 5 to drive the rotation of the worm gears 503, thereby driving the rotation of the worm wheels 505, the rotating rods 504, and the gears 506, and further driving the axial movement of the racks 507, so that all the abutting members move integrally towards the steel reinforcement cage until the multiple arc-shaped abutting blocks 509 abut the steel reinforcement cage and clamp the steel reinforcement cage, thus facilitating subsequent construction operations.

[0095] Embodiment 2

[0096] Based on the same inventive concept, the embodiment of the present invention further provides a pile foundation construction method, which applies the pile foundation construction platform with a stable limit structure described in Embodiment 1, including:

[0097] S101: Place the pile foundation construction platform with a stable limit structure as a whole at the pile foundation construction position;

[0098] S102: Insert multiple insertion columns 3 into the ground to fix the pile foundation construction platform to the ground;

[0099] S103: Rotate the screw rod 402 to horizontally insert all the horizontal insertion rods 404 into the ground;

[0100] S104: Hoist and transport the steel reinforcement cage to the center of the platform body 2 and clamp the steel reinforcement cage through the auxiliary adjustment mechanism 5.

[0101] In the embodiment of the present invention, the pile foundation construction method corresponds to the pile foundation construction platform with a stable limit structure described in Embodiment 1, and the specific implementation process can refer to the process of performing pile foundation construction by applying the pile foundation construction platform with a stable limit structure described in Embodiment 1. For repeated parts, no further description will be given.

[0102] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. The present disclosure is not limited to the exact structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A pile foundation construction platform with a stable limiting structure, characterized in that It includes a base, a platform body, a plurality of plug-in columns and a plurality of auxiliary adjustment mechanisms; The platform body is arranged above the base, and the plurality of plug-in columns are uniformly arranged below the base; A stable limiting mechanism is arranged in each plug-in column; The stable limiting mechanism includes a screw rod, a first bearing and at least one set of telescopic mechanisms; The first bearing is fixed to the bottom surface of the plug-in column, and the lower end of the screw rod is inserted into the first bearing; The upper end of the screw rod extends out of the plug-in column and passes through the base; Each telescopic mechanism includes a displacement block, a plurality of horizontal insertion rods and a plurality of connecting rods; a threaded through hole is arranged at the center of the displacement block and is threadedly connected with the screw rod; each connecting rod is respectively hinged to the displacement block and the corresponding horizontal insertion rod; One end of the horizontal insertion rod away from the screw rod is arranged as a cone, and a plurality of protruding holes corresponding to the horizontal insertion rod are arranged on the side wall of the plug-in column. The cone of each horizontal insertion rod is located in the corresponding protruding hole, and each horizontal insertion rod can partially extend out of the protruding hole under the rotation action of the screw rod; The plurality of auxiliary adjustment mechanisms are arranged on the upper surface of the platform body and are used for clamping the steel reinforcement cage.

2. The pile foundation construction platform with a stable limit structure according to claim 1, wherein, The stable limiting mechanism further includes a plurality of limiting parts; Each limiting part is fixed to the inner wall of the plug-in column and is located above the corresponding protruding hole; A sliding groove is arranged at the top of each horizontal insertion rod, and the corresponding limiting part extends into the sliding groove.

3. The pile foundation construction platform with a stable limiting structure according to claim 1, characterized in that, The stable limiting mechanism further includes a rotating handle and a pin; The rotating handle is arranged at the top end of the screw rod and is provided with a vertical through hole; The base is provided with a counterbore, and the pin passes through the through hole and can be inserted into the counterbore.

4. The pile foundation construction platform with a stable limiting structure according to claim 1, characterized in that, A pile foundation hole for the steel reinforcement cage to pass through is arranged at the centers of the platform body and the base; The plurality of auxiliary adjustment mechanisms are uniformly distributed around the pile foundation hole and are used for cooperating to clamp the steel reinforcement cage.

5. The pile foundation construction platform with a stable limiting structure according to claim 4, characterized in that, Each auxiliary adjustment mechanism includes a fixed frame, a transmission mechanism and an abutting member; The abutting member horizontally penetrates through the fixed frame and is used for abutting against the steel reinforcement cage; The transmission mechanism is in transmission connection with the abutting member and can drive the abutting member to move horizontally under the action of an external force.

6. The pile foundation construction platform with a stable limiting structure according to claim 5, characterized in that, The abutting member includes an arc-shaped abutting block and a rack; The rack penetrates through the fixed frame; The arc-shaped abutting block is fixedly connected to one end of the rack close to the center of the platform body; The rack is in transmission connection with the transmission mechanism.

7. The pile foundation construction platform with a stable limit structure according to claim 6, characterized in that, The transmission mechanism includes a rotating rod, a hand wheel, a worm, a worm gear and a gear; The rotating rod is vertically arranged in the fixed frame and can rotate relative to the fixed frame; The worm gear and the gear are sleeved on the rotating rod up and down and are fixedly connected to the rotating rod; The worm gear meshes with the worm; The hand wheel is fixedly connected to the worm; The rack meshes with the gear.

8. The pile foundation construction platform with a stable limiting structure according to claim 6, characterized in that, The abutting member further includes two guide rods; The ends of the two guide rods are fixedly connected to the arc-shaped abutting block, and the two guide rods are symmetrically arranged on both sides of the rack; The fixed frame is provided with a first through hole and two second through holes, and the first through hole is located in the middle of the two second through holes; The rack passes through the first through hole, and the two guide rods respectively pass through the corresponding second through holes.

9. The pile foundation construction platform with a stable limit structure according to claim 1, characterized in that, The bottom of the insertion post is a cone with the tip facing downwards.

10. A pile foundation construction method, which applies the pile foundation construction platform with a stable limit structure described in any one of claims 1-9, characterized in that, Including: Placing the pile foundation construction platform with a stable limiting structure as a whole at the pile foundation construction position; Inserting a plurality of insertion posts into the ground to fix the pile foundation construction platform to the ground; rotating the screw rod to horizontally insert all the horizontal insertion rods into the ground; Lifting and transporting the steel reinforcement cage to the center of the platform body, and clamping the steel reinforcement cage through the auxiliary adjustment mechanism.

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