Construction method of square anti-slide pile reinforcement cage

Abstract

The invention belongs to the technical field of slide-resistant pile construction, and relates to a construction method of a square slide-resistant pile reinforcement cage. The method comprises the steps that a rack is erected on a pile well; at least two hanging bars are hung on each penetrating bar at intervals, the two penetrating bars are erected on the two sides of a hoisting frame, the hoisting frame is hoisted, all the hanging bars are gradually lowered into the pile well through a through cavity in the rack, and multiple stirrups are bound with all the hanging bars in the rack after lowering every time till lowering is completed and binding of the stirrups is completed; a plurality of main reinforcement modules are hung into the pile well and bound with the stirrups in the rack to form a reinforcement cage prototype; the two penetrating rods are lifted to gradually lift the reinforcement cage prototype from the pile well, all the main reinforcement modules and stirrups in the rack are bound after each time of lifting till lifting is completed and all the main reinforcement modules are bound, and finally the reinforcement cage is formed; and the reinforcement cage is lowered into the pile well, and the rack is dismantled. The construction difficulty of the square anti-slide pile reinforcement cage can be reduced, the construction efficiency is improved, and the construction risk and the construction cost are reduced.

Description

Technical Field

[0001] This invention belongs to the field of anti-slide pile construction technology, specifically relating to a construction method for a square anti-slide pile reinforcement cage. Background Technology

[0002] In order to ensure operational safety and prevent geological hazards, infrastructure projects in high-altitude and mountainous areas, such as high-speed railways, highways, large reservoirs, hydropower stations, mines, and municipal slopes, anti-slide support is usually carried out at tunnel entrances and roadbed sections near the edges and mountains. Currently, square anti-slide piles are mostly used for support.

[0003] The earliest construction method for square anti-slide piles was manual excavation and wall protection. The steel reinforcement cage was usually constructed by manually lowering it into the well and tying it. Due to objective reasons such as the small space and poor air circulation inside the pile well, the vertical transportation of personnel, materials and machinery was difficult, resulting in low construction efficiency and significant safety hazards.

[0004] Currently, to improve the construction efficiency of square anti-slide piles, rotary drilling rigs are being used for mechanical drilling of the pile wells. Since mechanical drilling typically only involves creating the wellhead wall and not the pile hole wall, manual entry into the well is strictly prohibited. Therefore, the reinforcing cage is often fabricated outside the well and hoisted in as a whole. However, this method has the following drawbacks: 1) Due to safety considerations, the design and welding technology of the lifting points of the steel cage are highly demanding, resulting in low steel cage production efficiency. Furthermore, during the overall hoisting process, issues such as the setting of lifting points and welding quality may increase construction risks. 2) Due to the large weight of the steel cage, large hoisting equipment is required. The construction method of hoisting the steel cage into the well as a whole will occupy large hoisting equipment for a long time, increasing construction costs.

[0005] In view of this, there is an urgent need to develop a new construction method for square anti-slide pile reinforcement cages. Summary of the Invention

[0006] In view of the shortcomings of related technologies, the present invention provides a construction method for square anti-slide pile reinforcement cages, which aims to reduce the construction difficulty of square anti-slide pile reinforcement cages, improve construction efficiency, reduce construction risks, reduce the occupation of large hoisting equipment, and reduce construction costs.

[0007] The construction method of the square anti-slide pile reinforcement cage of the present invention includes the following steps: S1. Fabrication of steel cage components and tooling; steel cage components include lifting bars, stirrups, and main reinforcement modules. The main reinforcement modules include the main reinforcement modules on the mountain-side, the main reinforcement modules on the back-mountain-side, and the lateral main reinforcement modules. The tooling includes a hoisting frame, a platform, and a rod threading device. The platform is a full frame structure with a vertically extending through cavity. S2. Erect the platform on the square anti-slide pile well; suspend at least two lifting bars at intervals on each through rod, place the two through rods on both sides of the lifting frame, use a crane to lift the lifting frame, and lower all the lifting bars into the pile well through the through cavity on the platform one by one. After each lowering, tie and fix multiple stirrups to all the lifting bars within the height range of the platform, and then lower it again until the through rod is pressed against the top surface of the platform and the stirrups and lifting bars are tied together; remove the lifting frame. S3. Hoist multiple main reinforcement modules on the mountain-side, multiple main reinforcement modules on the back-mountain-side, and multiple lateral main reinforcement modules into the pile well one by one, and place them at the same lowering height as the hoisting bars. Tie each main reinforcement module to multiple stirrups within the height range of the platform to form a preliminary steel cage. S4. Simultaneously lift two lifting rods to gradually lift the steel cage prototype from the pile well. After each lifting, tie and fix each main reinforcement module to multiple stirrups within the height range of the platform. Then carry out the next lifting until the steel cage prototype is lifted out of the pile well and each main reinforcement module is tied to the stirrups, thus finally forming the steel cage. S5. Lower the steel cage into the pile well. When the two through rods are close to the top surface of the support frame, remove the support frame and continue lowering the steel cage until the two through rods overlap the top surface of the pile well opening wall.

[0008] In some embodiments, in step S2, at least three suspension rods are suspended at intervals on each rod; when all the suspension rods are lowered into the pile well in succession, the two rods are located on two lateral sides between the hillside and the back side of the pile well.

[0009] In some embodiments, in step S2, each stirrup is tied to the hanging bar at least two times, and the multiple stirrups on the mountain side are arranged at intervals and staggered; in step S3, multiple main reinforcement modules on the mountain side are respectively attached to each stirrup on the mountain side and tied to it.

[0010] In some embodiments, in step S2, when all the lifting bars are lowered into the pile well one by one, the lowering height each time is equal to the height of the platform; in step S4, when the steel cage prototype is lifted out of the pile well one by one, the lifting height each time is equal to the height of the platform.

[0011] In some embodiments, the height of the platform is no greater than 2m.

[0012] In some embodiments, before simultaneously lifting the two through rods in step S4, the method further includes lifting the lifting frame to the top surface of the platform and restoring the lifting frame under the two through rods; using a crane to lift the lifting frame to achieve simultaneous lifting of the two through rods.

[0013] In some embodiments, before performing step S5, at least one positioning frame is installed on the top surface around the platform. Each positioning frame includes a positioning component located above the through cavity of the platform and two connecting components connected to both ends of the length of the positioning component. The other ends of the two connecting components are connected to the top surface of the platform. All positioning components work together to position the planar position of the steel cage when it is lowered.

[0014] In some embodiments, the mountain-side main reinforcement module includes at least three mountain-side main reinforcement bundles connected in a row, each mountain-side main reinforcement bundle including three vertically extending main reinforcements welded together; the back-mountain-side main reinforcement module includes at least three back-mountain-side main reinforcement bundles connected in a row, each back-mountain-side main reinforcement bundle including two vertically extending main reinforcements welded together; and the lateral main reinforcement module includes multiple vertically extending main reinforcements connected in a row.

[0015] In some embodiments, the lifting frame includes a main frame and multiple support members connected to the outside of both sides of the main frame. The support members have support grooves with upper openings, and the size of the support grooves is adapted to the outer diameter of the through rod. Multiple lifting lugs are provided on the top surface of the main frame.

[0016] In some embodiments, the stand includes a main frame and a first side frame; the main frame is U-shaped with one side being open; the first side frame is detachably connected to the open end of the main frame; the main frame includes a second side frame disposed opposite to the first side frame and four side frames connected between the second side frame and the first side frame; a reinforcing frame is connected between two adjacent side frames.

[0017] Based on the above technical solution, the construction method of the square anti-slide pile reinforcement cage in the embodiment of the present invention, through the design and application of tooling and the specific process setting of the reinforcement cage construction method, realizes the component fabrication and component step-by-step hoisting construction of the reinforcement cage, which can reduce the construction difficulty of the square anti-slide pile reinforcement cage, improve construction efficiency, reduce construction risks, reduce the occupation of large hoisting equipment, and reduce construction costs. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a flowchart of the construction method for the square anti-slide pile reinforcement cage of the present invention; Figure 2 This is a top view of the steel reinforcement cage in this invention; Figure 3 This is a three-dimensional schematic diagram of the steel cage in this invention; Figure 4 This is a schematic diagram of the lifting frame in this invention; Figure 5 This is a schematic diagram of the structure of the platform in this invention; Figure 6 This is a structural schematic diagram of the main reinforcement module on the mountain side in this invention; Figure 7 This is a schematic diagram of the lowering of the lifting bar into the pile well and the binding of the stirrups in step S2 of the present invention; Figure 8 This is a schematic diagram of the main reinforcement module on the mountain side being hoisted into the pile well in step S3 of the present invention; Figure 9 This is a schematic diagram of the steel cage prototype being lifted from the pile well in step S4 of the present invention. Figure 10 This is a schematic diagram of the steel cage being lowered into the pile well in step S5 of the present invention. Figure 11 for Figure 10 Enlarged view of point A in the middle; Figure 12 This is a schematic diagram of the steel cage being completely lowered into the pile well in step S5 of the present invention.

[0019] In the picture: 1. Reinforcing cage; 11. Hanging bar; 12. Stirrup; 13. Main reinforcement module on the mountain side; 131. Main reinforcement bundle on the mountain side; 14. Main reinforcement module on the back side; 15. Lateral main reinforcement module; 16. Main reinforcement; 17. Connecting bar; 2. Lifting frame; 21. Main frame body; 22. Support component; 221. Support groove; 23. Lifting lug; 3. Platform; 30. Through cavity; 31. Main frame; 32. First side frame; 33. Second side frame; 34. Frame; 35. Reinforcing frame; 36. Positioning frame; 361. Positioning component; 362. Connecting component; 3621. Long flat hole; 363. Bolt; 4. Through rod; 5. Pile well; 51. Wellhead wall protection. Detailed Implementation

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "top", "bottom", "inner", "outer", "left", "right", "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] refer to Figures 1-12 This invention provides a construction method for a square anti-slide pile reinforcement cage, the method comprising the following steps: S1. Fabrication of steel cage 1 assembly and tooling. Steel cage 1 assembly includes multiple hanging bars 11, multiple stirrups 12 and multiple main reinforcement modules; among which, the main reinforcement modules include multiple main reinforcement modules on the mountain-side 13, multiple main reinforcement modules on the back-mountain-side 14, and multiple lateral main reinforcement modules 15; all components of steel cage 1 are uniformly processed in the steel intelligent production center.

[0025] The fixture includes a lifting frame 2, a platform 3, and two through rods 4; the through rods 4 can be made of Q235 steel with a diameter of 90mm. The platform 3 is a full frame structure, meaning that the platform 3 has large open areas in all directions; furthermore, there is a vertically extending through cavity 30 between the top and bottom surfaces of the platform 3; the opening size of the through cavity 30 is adapted to the wellhead size of the square anti-slide pile well 5. The lifting frame 2 is also a frame structure as a whole, and its outer perimeter is smaller than the opening size of the through cavity 30 on the platform 3.

[0026] S2. The platform 3 is placed on the square anti-slide pile well 5, and the center of the through cavity 30 is aligned with the center of the well opening of the pile well 5. Furthermore, since the square anti-slide pile well 5 with mechanical drilling usually has a well opening protective wall 51, the platform 3 can be placed on the top surface of the well opening protective wall 51.

[0027] At least two suspension rods 11 are suspended axially at intervals on each through rod 4. The suspension rods 11 are typically HPB300 steel bars with a diameter of 16mm. Specifically, the top of the suspension rod 11 is provided with a suspension hole, and the through rod 4 passes through multiple suspension holes in sequence to suspend multiple suspension rods 11 on the through rod 4. Then, the two through rods 4 are respectively erected on both sides of the lifting frame 2, and the axial direction of the through rod 4 is parallel to the top or bottom surface of the lifting frame 2. The distance between the two through rods 4 is less than the opening size of the through cavity 30 on the platform 3. The lifting frame 2 is lifted by a crane, which can move the two through rods 4 and the suspension rods 11 on them together. The crane moves step by step, lowering all the lifting rods 11 into the pile well 5 through the through cavity 30 on the platform 3. It is understandable that since the total weight of the lifting frame 2, the through rod 4, and the lifting rods 11 being lifted by the crane is relatively light at this time, it is not necessary to use large lifting equipment. After each lowering, the workers use the hollow area on the platform 3 next to the pile well 5 to tie and fix multiple stirrups 12 to all the lifting rods 11 within the height range of the platform 3, and then carry out the next lowering until the two through rods 4 are pressed against the top surface of the platform 3 and the stirrups 12 and the lifting rods 11 are tied together.

[0028] Since the two through rods 4 are only erected on the lifting frame 2, after the two through rods 4 are pressed against the top surface of the platform 3, the lifting frame 2 can be lowered appropriately to release the overlapping relationship between the two through rods 4 and the lifting frame 2. Then, the lifting frame 2 can be tilted and lifted appropriately so that it can be separated from the two through rods 4. The lifting frame 2 can be removed by using a crane, thus freeing up the crane as a lifting equipment resource. The two through rods 4 and the hanging rods 11 and stirrups 12 suspended on them will be completely supported by the platform 3.

[0029] S3. Using a crane, multiple main reinforcement modules 13 on the mountain side are hoisted into the pile well 5 one by one, and placed at the same lowering height as the lifting bars 11. The workers on the platform 3 above the pile well 5 tie and fix each main reinforcement module 13 on the mountain side to the multiple stirrups 12 within the height range of the platform 3. In the same way, multiple main reinforcement modules 14 on the back side are hoisted into the pile well 5 one by one and tied and fixed to the multiple stirrups 12 within the height range of the platform 3. Multiple lateral main reinforcement modules 15 are hoisted into the pile well 5 one by one and tied and fixed to the multiple stirrups 12 within the height range of the platform 3. Thus, each main reinforcement module is connected to the multiple stirrups 12 and the lifting bars 11 at the upper part of the height range of the platform 3, thereby forming the prototype of the steel cage 1. At this time, the prototype of the steel cage 1 will be completely hung on the two through rods 4 that are pressed on the top surface of the platform 3.

[0030] Understandably, multiple main reinforcement modules 13 on the mountainside are located on the side of the pile well 5 closest to the mountain, multiple main reinforcement modules 14 on the side away from the mountain are located on the side of the pile well 5 away from the mountain, and multiple lateral reinforcement modules 15 are located on the left and right sides of the pile well 5 relative to the mountain. In addition, since the crane lifts the main reinforcement modules 13 on the mountainside, 14 on the side away from the mountain, and 15 on the lateral reinforcement modules one by one, the lifting weight is relatively light, and it is not necessary to use large lifting equipment.

[0031] S4. Using a crane, lift two reinforcing bars 4 simultaneously to gradually lift the preliminary shape of the reinforcing cage 1 from the pile well 5. After each lift, the workers tie and fix each main reinforcing bar module to the multiple stirrups 12 within the height range of the platform 3 on the pile well 5. Then, the next lift is carried out until the preliminary shape of the reinforcing cage 1 is lifted out of the pile well 5 and each main reinforcing bar module is tied to the stirrups 12, thus finally forming the square anti-slide pile reinforcing cage 1.

[0032] S5. Using a crane, slowly lower two through rods 4 simultaneously to lower the reinforcing cage 1 into the pile well 5. When the two through rods 4 are close to the top surface of the support frame 3, the workers remove the support frame 3 from the pile well 5. Then, continue lowering the reinforcing cage 1 until the two through rods 4 overlap the top surface of the well opening wall 51 of the pile well 5. Thus, the reinforcing cage 1 is completely lowered into the pile well 5, completing the construction of the square anti-slide pile reinforcing cage 1. Those skilled in the art will understand that subsequent concrete pouring, curing, and removal of the two through rods 4 will be carried out according to specific construction requirements to complete the construction of the square anti-slide pile.

[0033] The above illustrative embodiment, through the design and application of tooling and the specific process settings of the rebar cage construction method, realizes the component fabrication of the rebar cage 1 and the step-by-step hoisting construction of the components, reducing the construction difficulty of the square anti-slide pile rebar cage 1 and improving construction efficiency; at the same time, the workers can carry out construction work next to the platform 3 on the pile well 5 without having to manually go down into the well, which significantly reduces construction risks and ensures construction safety; moreover, compared with the existing construction method of hoisting the rebar cage 1 into the well as a whole, the group hoisting construction method of the rebar cage 1 in this embodiment can reduce the occupation of hoisting equipment, especially large hoisting equipment, thereby reducing construction costs.

[0034] refer to Figures 2-7As shown, in some embodiments, in step S2, at least three suspension bars 11 are suspended axially at intervals on each through rod 4; when all the suspension bars 11 are successively lowered into the pile well 5 through the through cavity 30 on the platform 3, the two through rods 4 are respectively located on two lateral directions between the mountain-facing side and the back-mountain side of the pile well 5. Those skilled in the art will understand that the distance between the mountain-facing side and the back-mountain side of the anti-slide pile well 5 is usually greater than the distance between the two lateral directions of the pile well 5, that is, the lateral direction can be considered as the length direction of the pile well 5; therefore, setting the through rods 4 on the lateral direction of the pile well 5 increases the number of suspension bars 11 arranged in the length direction of the pile well 5, which is beneficial to improving the binding quality between the stirrups 12 and the suspension bars 11.

[0035] refer to Figure 2 , Figure 3 , Figure 8 As shown, in some embodiments, in step S2, each stirrup 12 is tied to the hanger 11 at least two times, and the multiple stirrups 12 on the mountain-side of each stirrup 12 are spaced out and staggered, that is, there is a certain gap between the circles on the mountain-side of each stirrup 12 and they are staggered. In step S3, multiple main reinforcement modules 13 on the mountain-side are respectively attached to and tied to each circle of stirrups 12 on the mountain-side, thereby improving the structural strength of the steel cage 1 on the mountain-side, which is beneficial to improving the anti-slide support performance of the anti-slide pile.

[0036] refer to Figures 2-7 As shown, in some embodiments, in step S2, when all the lifting bars 11 are lowered into the pile well 5 one by one, the lowering height each time is equal to the height of the platform 3; specifically, when the lifting bars 11 are lowered to the point where their bottom ends are flush with the bottom surface of the platform 3, the first lowering is completed. After the workers securely tie the multiple stirrups 12 to all the lifting bars 11 within the height range of the platform 3, the second lowering and the subsequent tying of the stirrups 12 are carried out. Following this process, the subsequent lowering and subsequent tying are carried out. When the two through rods 4 are pressed against the top surface of the platform 3, the lowering is completed, and the final tying of the stirrups 12 and the lifting bars 11 after the last lowering is carried out; thus, the staggered tying between the stirrups 12 and the lifting bars 11 is achieved. In step S4, when the preliminary shape of the reinforcing cage 1 is lifted from the pile well 5 one by one, the lifting height of each lifting is equal to the height of the platform 3. Specifically, when the distance between the through rod 4 and the top surface of the platform 3 reaches the height of the platform 3, it is the first lifting. After the workers securely tie each main reinforcement module to the multiple stirrups 12 within the height range of the platform 3, the second lifting and the subsequent tying of each main reinforcement module are carried out. Following this process, subsequent lifting and subsequent tying are carried out. When the preliminary shape of the reinforcing cage 1 is lifted out of the pile well 5, that is, when the bottom end of the lifting rod 11 is flush with the bottom surface of the platform 3, the lifting is completed, and the final lifting and subsequent tying of each main reinforcement module to the stirrups 12 are carried out. This achieves the phased tying between each main reinforcement module and the stirrups 12.

[0037] refer to Figure 5As shown, in some embodiments, the height of the platform 3 is no more than 2m, and can be 2m, 1.8m, 1.6m, etc., depending on the height of the workers. The height of this platform 3 is within the range that workers can directly operate without the need to set up additional climbing devices, which helps to reduce construction difficulty and construction risks.

[0038] refer to Figure 9 As shown, in some embodiments, before simultaneously lifting the two through rods 4 in step S4, the method further includes using a crane to lift the lifting frame 2 removed in step S2 to the top surface of the platform 3, tilting it appropriately and lowering the lifting frame 2 so that it can pass between the two through rods 4 and be supported under the two through rods 4 again; using a crane to lift the entire lifting frame 2 to achieve simultaneous lifting of the two through rods 4; thereby ensuring that the prototype of the steel cage 1 can be smoothly lifted upward from the pile well 5.

[0039] refer to Figure 10 , Figure 11 As shown, in some embodiments, before performing step S5, at least one positioning frame 36 is installed on the top surface of the platform 3 around its perimeter. Each positioning frame 36 includes a positioning element 361 located above the through cavity 30 of the platform 3 and two connecting elements 362 connected to both ends of the length of the positioning element 361. The other ends of the two connecting elements 362 are connected to the top surface of the platform 3 by bolts 363. The positioning element 361 and the connecting elements 362 are both made of angle steel. The front end of each positioning element 361 is used to limit the position of the stirrups 12 on the reinforcing cage 1 that are close to the positioning element 361 when the reinforcing cage 1 is lowered, thus guiding the lowering of the reinforcing cage 1. All positioning elements 361 together position the reinforcing cage 1 in planar position when it is lowered. Furthermore, the connector 362 has an elongated flat hole 3621, through which the bolt 363 passes to connect the connector 362 to the platform 3. The length direction of the elongated flat hole 3621 is perpendicular to the length direction of the positioning member 361, thereby facilitating the adjustment of the distance between the front end of the positioning member 361 and the edge of the through cavity 30. This illustrative embodiment, through the setting of multiple positioning frames 36, ensures that the steel cage 1 and the pile well 5 can be accurately aligned after being lowered, thereby improving the subsequent concrete pouring effect and ensuring the support strength of the square anti-slide pile.

[0040] refer to Figure 6As shown, in some embodiments, the mountain-side main reinforcement module 13 includes at least three mountain-side main reinforcement bundles 131 and multiple connecting bars 17. Each mountain-side main reinforcement bundle 131 includes three vertically extending main bars 16 welded together. The multiple connecting bars 17 are spaced apart along the height direction of the mountain-side main reinforcement bundles 131. The connecting bars 17 extend across all the mountain-side main reinforcement bundles 131 of the mountain-side main reinforcement module 13 and are welded to them, so that they are connected in a row to form the mountain-side main reinforcement module 13. The back-side main reinforcement module 14 includes at least three back-side main reinforcement bundles and multiple connecting bars 17. Each back-side main reinforcement bundle includes two vertically extending main bars 16 welded together. The multiple connecting bars 17 are spaced apart along the height direction of the back-side main reinforcement bundles. The connecting bars 17 extend across all the back-side main reinforcement bundles of the back-side main reinforcement module 14 and are welded to them, so that they are connected in a row to form the back-side main reinforcement module 14. The lateral main reinforcement module 15 includes multiple vertically extending main reinforcement bars 16 and multiple connecting bars 17. The connecting bars 17 are spaced apart along the height direction of the main reinforcement bars 16. The connecting bars 17 extend across all the main reinforcement bars 16 of the lateral main reinforcement module 15 and are welded to them, connecting them in a row to form the lateral main reinforcement module 15. This illustrative embodiment realizes the modular design and fabrication of the mountain-side main reinforcement module 13, the back-side main reinforcement module 14, and the lateral main reinforcement module 15.

[0041] refer to Figure 4 As shown, in some embodiments, the lifting frame 2 includes a main frame 21 and multiple support members 22 connected to the outside of both sides of the main frame 21. The support members 22 have support grooves 221 with openings at the top, and the size of the support grooves 221 is adapted to the outer diameter of the through rods 4. Multiple lifting lugs 23 are arranged on the top surface of the main frame 21, and the lifting cable passes through the lifting lugs 23 and is connected to the hook of the crane, so that the lifting frame 2 can be lifted by the crane. Furthermore, two through rods 4 are placed in the support grooves 221, so that when the crane lifts the lifting frame 2, the through rods 4 can move synchronously.

[0042] refer to Figure 5 As shown, in some embodiments, the platform 3 includes a main frame 31 and a first side frame 32; the main frame 31 is U-shaped, with one side being open; the first side frame 32 is detachably connected to the open end of the main frame 31, thereby achieving the detachability of the platform 3. Further, the main frame 31 includes a second side frame 33 opposite to the first side frame 32, and four side frames 34 connecting the second side frame 33 and the first side frame 32; both the first side frame 32 and the second side frame 33 are U-shaped frame structures; reinforcing frames 35 connect adjacent upper and lower side frames 34, and there can be multiple reinforcing frames 35, which can be arranged vertically or diagonally, thereby ensuring the overall structural strength of the main frame 31. The first side frame 32, the second side frame 33, the side frames 34, and the reinforcing frames 35 can be made of 20b I-beams.

[0043] In summary, the construction method of the square anti-slide pile reinforcement cage of the present invention, through the design and application of tooling and the specific process setting of the reinforcement cage construction method, realizes the component fabrication and component hoisting construction of the reinforcement cage in stages, eliminating the need for manual downhole operations and the need to occupy large hoisting equipment for a long time. Therefore, it reduces the construction difficulty of the square anti-slide pile reinforcement cage, improves construction efficiency, and reduces construction risks and costs.

[0044] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the present invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. A construction method for a square anti-sliding pile reinforcement cage, characterized in that: The following steps are involved: S1. Make a steel cage assembly and tooling; the steel cage assembly includes hanging bars, stirrups, and main bar modules, and the main bar modules include main bar modules on the mountain side, main bar modules on the back of the mountain, and lateral main bar modules; the tooling includes a hanging frame, a stand, and two through rods, and the stand is a full frame structure with a vertically extending through cavity; S2, erecting the platform on the square anti-slip pile well; hanging at least two hanging bars on each of the wear rods at intervals, respectively erecting the two wear rods on both sides of the hanging frame, hoisting the hanging frame by a crane, and lowering all the hanging bars into the pile well one by one through the through cavity on the platform, after each lowering, tying and fixing the multiple stirrups with all the hanging bars within the height range of the platform, and then lowering the next time, until the wear rods are crimped on the top surface of the platform and the stirrups are tied with the hanging bars; removing the hanging frame; S3, hanging and placing a plurality of the main reinforcement modules on the mountain side, a plurality of the main reinforcement modules on the back of the mountain, and a plurality of the lateral main reinforcement modules into the pile well one by one, and making them at the same lowering height as the hanging bars, and respectively tying and fixing each of the main reinforcement modules with a plurality of stirrups within the height range of the stand, thereby forming a prototype of a steel cage; S4, hoisting the two rods at the same time, lifting the steel cage prototype from the pile well one by one, and after each lifting, tying and fixing each main reinforcement module with multiple stirrups within the height range of the stand, and then performing the next lifting, until the steel cage prototype is taken out of the pile well and each main reinforcement module is tied with stirrups, thereby finally forming the steel cage; S5, lowering the steel cage into the pile well, and when the two rods are close to the top surface of the stand, dismantling the stand, and then continuing to lower the steel cage until the two rods overlap the top surface of the pile well mouth retaining wall.

2. The construction method of the square anti-sliding pile reinforcement cage according to claim 1 is characterized in that: In step S2, at least three suspension bars are suspended on each of the penetration rods at intervals; when all the suspension bars are lowered into the pile well one by one, two penetration rods are respectively located on two lateral sides between the mountain-facing side and the mountain-facing side of the pile well.

3. The construction method of the square anti-sliding pile reinforcement cage according to claim 2 is characterized in that: In step S2, each stirrup is tied on the hanger bar for at least two circles, and the multiple circles of stirrups on the mountain side are arranged in an interval and staggered manner; in step S3, multiple main reinforcement modules on the mountain side are respectively attached to each circle of stirrups on the mountain side and tied and fixed thereto.

4. The construction method of the square anti-sliding pile reinforcement cage according to claim 1 is characterized in that: In step S2, when all the hanging bars are lowered into the pile well one by one, the height of each lowering is equal to the height of the platform; in step S4, when the steel cage prototype is lifted from the pile well one by one, the height of each lifting is equal to the height of the platform.

5. The construction method of the square anti-sliding pile reinforcement cage according to claim 1 or 4 is characterized in that: The height of the platform is not more than 2m.

6. The construction method of the square anti-sliding pile reinforcement cage according to claim 1 is characterized in that: In step S4, before simultaneously lifting the two threading rods, the method further includes lifting the lifting frame to the top surface of the platform and allowing the lifting frame to be supported under the two threading rods again; and lifting the lifting frame by a crane to achieve simultaneous lifting of the two threading rods.

7. The construction method of the square anti-sliding pile reinforcement cage according to claim 1 is characterized in that: Before executing step S5, at least one positioning frame is installed on the top surface around the platform, each of which includes a positioning member located above the platform through cavity and two connecting members connected to the two ends of the positioning member, and the other ends of the two connecting members are connected to the top surface of the platform; all the positioning members jointly position the planar position of the steel cage when it is lowered.

8. The construction method of the square anti-sliding pile reinforcement cage according to claim 1 is characterized in that: The mountain-side main reinforcement module includes at least three mountain-side main reinforcement bundles connected in a row, each of which includes three vertically extending main reinforcements welded into a bundle; the mountain-back side main reinforcement module includes at least three mountain-back side main reinforcement bundles connected in a row, each of which includes two vertically extending main reinforcements welded into a bundle; the lateral main reinforcement module includes multiple vertically extending main reinforcements connected in a row.

9. The construction method of the square anti-sliding pile reinforcement cage according to claim 1 is characterized in that: The hanging frame includes a main frame body and a plurality of supporting members connected to the outside of both sides of the main frame body, wherein the supporting members have a supporting groove with an upper opening, and the size of the supporting groove is adapted to the outer diameter of the through rod; a plurality of lifting ears are arranged on the top surface of the main frame body.

10. The construction method of square anti-sliding pile reinforcement cage according to claim 1, characterized in that: The stand includes a main frame and a first side frame; the main frame is in a U-shape, one side of which is an open end; the first side frame is detachably connected to the open end of the main frame; the main frame includes a second side frame arranged opposite to the first side frame, and four side frames connected between the second side frame and the first side frame; a reinforcement frame is connected between two adjacent side frames above and below.

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