A device for directional slip of a cast-in-place pile and a slip method thereof

Abstract

The application discloses a kind of perfusion pile directional slip devices and its slip method, it is related to civil engineering construction technical field, including: retaining wall;Connecting component, it includes first connecting piece and second connecting piece, first connecting piece and second connecting piece are fixed to perfusion pile side wall, and are distributed in the upper and lower sides of perfusion pile center;Slip component, it includes first horizontal slide rail that is erected in the two sides of the retaining wall;Push telescopic piece, it is below second connecting piece, the push telescopic piece is used to drive perfusion pile to lift;The lifting of the perfusion pile can make first connecting piece upwardly separate from first horizontal slide rail, or place on first horizontal slide rail by descending;First side push telescopic piece, it is fixed on first horizontal slide rail, and is used to drive perfusion pile to slide along the length direction of first horizontal slide rail.Using the scheme, it can move the engineering pile exceeding the allowable deviation of specification to specified position, avoids the problem such as re-piling;Reduce problem pile processing time, improve construction efficiency.

Description

Technical Field

[0001] This invention relates to the field of civil engineering construction technology, specifically to a directional sliding device for cast-in-place piles and its sliding method. Background Technology

[0002] Pile misalignment is a common phenomenon in engineering construction. When the misalignment is significant, the piles are often scrapped. The common approach is to scrap the problematic pile with the largest misalignment and then replace it with two additional piles on either side. A connecting beam is then constructed to connect the two piles and replace the original scrapped pile. The new piles must wait for the concrete to reach its strength before proceeding to the next stage of construction. Because the cost of replacing the piles is high, the loss due to pile misalignment is often substantial. The construction period for developing a new plan and replacing the piles is long and expensive, which significantly impacts the project's construction schedule. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention aims to provide a directional sliding device and method for cast-in-place piles. This solution can move engineering piles that exceed the allowable deviation specified in the standards to a designated location, avoiding problems such as re-piling; it also reduces the time required to handle problematic piles and improves construction efficiency.

[0004] This invention is achieved through the following technical solution:

[0005] A directional sliding device for cast-in-place piles, comprising:

[0006] The retaining wall is arranged around the cast-in-place pile and has a circumferential gap between it and the cast-in-place pile;

[0007] The connecting assembly includes a first connector and a second connector, both of which are fixed to the sidewall of the cast-in-place pile and distributed on the upper and lower sides of the center of the cast-in-place pile.

[0008] The sliding assembly includes a first horizontal slide rail mounted on both sides of the retaining wall, and the first connecting member is located above the first horizontal slide rail;

[0009] The jacking telescopic component is located below the second connecting component, and its output end abuts against the second connecting component. The jacking telescopic component is used to drive the grouting pile to rise and fall. The rising and falling of the grouting pile can cause the first connecting component to move upward away from the first horizontal slide rail, or to move downward and place on the first horizontal slide rail.

[0010] The first side-push telescopic component is fixed on the first horizontal slide rail and is used to drive the grouting pile to slide along the length direction of the first horizontal slide rail.

[0011] Compared to existing technologies, which suffer from high costs associated with re-piling, significant losses due to pile misalignment leading to pile scrapping, and lengthy construction cycles requiring new re-piling plans, this invention provides a directional sliding device for cast-in-place piles. This device can move piles exceeding permissible deviations to designated positions, avoiding the need for re-piling; it also reduces the time required to handle problematic piles and improves construction efficiency. Specifically, the device involves excavating soil around the problematic pile, followed by installing a retaining wall to support the soil. This retaining wall can be made of standardized steel. After support is completed, the direction in which the cast-in-place pile needs to be moved is determined. Sliding components are pre-installed along this direction, and matching first and second connectors, a jacking telescopic component, and a first lateral thrust telescopic component are installed. Both the first and second connectors can be made of structural steel. The second connector is located at the bottom of the cast-in-place pile. The jacking telescopic component can be a hydraulic cylinder, fixed at the bottom, whose output lifts the second connector, causing the cast-in-place pile to rise and its bottom to suspend. Subsequently, a first hydraulic cylinder is installed... The first horizontal slide rail is fixed at both ends to the sides of the retaining wall. After installation, the jacking expansion joint is retracted, placing the first connecting piece on the first horizontal slide rail, while the cast-in-place pile remains suspended. The cast-in-place pile is then pushed horizontally along the first horizontal slide rail by the first lateral jacking expansion joint, which can be a hydraulic cylinder. When it reaches the designated position, the jacking expansion joint is reinstalled, and the cast-in-place pile is lifted upwards, causing the first connecting piece to detach from the first horizontal slide rail. The first horizontal slide rail is then removed, and the jacking expansion joint is retracted, allowing the cast-in-place pile to rest in the bottom bearing layer, thus completing the pile displacement. This method allows engineering piles exceeding the allowable deviation to be moved to the designated position, avoiding the need for re-piling; it also reduces the time spent dealing with problematic piles and improves construction efficiency.

[0012] To achieve stable lateral displacement of the cast-in-place pile, a first horizontal slide rail is provided on both sides of the cast-in-place pile, and a first connecting piece is provided above the two first horizontal slide rails.

[0013] Each of the two first horizontal slide rails is fixed with a first side-push telescopic component, and the output end of the first side-push telescopic component is used to push the first connecting component to slide.

[0014] Further optimization, to improve the connection strength between the first connector and the second connector, also includes steel embedded parts, wherein the first connector and the second connector are respectively connected to the cast-in-place piles through steel embedded parts;

[0015] The steel embedded part is arc-shaped to fit the cast-in-place pile, and its concave surface has several anchor bars that can be inserted into the pile. In this design, the first and second connecting parts are welded to their respective steel embedded parts, which are arc-shaped to fit the pile so as to fit tightly against the pile's sidewall. During installation, holes are first drilled in the pile, and then several anchor bars are inserted into the corresponding holes to achieve stable installation.

[0016] To further optimize the process and enable stable jacking and lateral displacement of the cast-in-place piles, the sliding assembly also includes a second horizontal slide rail mounted on both sides of the retaining wall.

[0017] The bottom of the cast-in-place pile is provided with a second horizontal slide rail on both sides; the bottom of the cast-in-place pile is provided with a jacking telescopic component on both sides, and a second connecting component is provided above the two jacking telescopic components.

[0018] The lifting and lowering mechanism of the jacking telescopic component allows the second connecting component to detach upwards from the second horizontal slide rail, or to descend and be placed on the second horizontal slide rail, thus slidingly connecting with it. In this design, both ends of the second horizontal slide rail are fixedly connected to both sides of the retaining wall, and second horizontal slide rails are provided on both sides of the bottom of the cast-in-place pile. The second horizontal slide rails are arranged side by side with the jacking telescopic component, and the jacking is performed by the two jacking telescopic components located on both sides to improve stability during the lifting and lowering process. The arrangement of the second horizontal slide rails allows the two second connecting components to fall on the two second horizontal slide rails respectively, thereby restricting the bottom of the cast-in-place pile. In this way, the first connecting component at the top of the cast-in-place pile can slide on the first horizontal slide rail, and the second connecting component at the bottom of the cast-in-place pile can slide on the second horizontal slide rail, thereby achieving stable lateral displacement of the cast-in-place pile body.

[0019] Further optimization includes a second lateral pusher expansion member to drive the bottom of the cast-in-place pile to make lateral displacement. The second lateral pusher expansion member is fixed on both of the second horizontal slide rails and is used to push the second connector to slide.

[0020] Further optimization involves addressing the issue that, due to the significant weight of the cast-in-place piles, swaying is likely to occur during lifting, lowering, or translating, potentially leading to pile detachment. To prevent swaying during movement, the piles are pre-clamped within the structure, and a positioning and anti-sway component is included. This component comprises a slide rail assembly mounted on both sides of the retaining wall, positioned between the first and second connecting members.

[0021] The slide rail assembly includes third horizontal slide rails located on both sides of the cast-in-place pile, with the two third horizontal slide rails slidably clamping the cast-in-place pile inside.

[0022] In a further optimization, as a specific structure of a positioning and anti-sway component, a pulley block and an end baffle are also clamped between the third horizontal slide rail and the grouting pile;

[0023] The end baffle is arranged along the length of the third horizontal slide rail. The side of the end baffle facing the cast-in-place pile is a plane, and the other side of the end baffle has a groove, which is arranged along the length of the end baffle.

[0024] The pulley assembly includes several pulleys, each pulley having a central shaft and rotating wheels located at both ends of the central shaft, and the axis of the pulley is parallel to the axis of the cast-in-place pile; the several pulleys are arranged sequentially along the length of the end baffle, one side of each pulley is inserted into a groove and abuts against the bottom of the groove, and the other side of the pulley can travel on the side wall of the third horizontal slide rail;

[0025] The third horizontal slide rail has an outward protrusion on the side facing the pulley assembly. This protrusion extends along the length of the third horizontal slide rail and can extend between two rotating wheels in the pulley system. In this design, during the installation of the third horizontal slide rail, the pulley assembly and end baffles need to be clamped within it. One side of the end baffle is flat to facilitate sliding between the end baffle and the pile during lifting and lowering. The other side of the end baffle has a groove, which is elongated to sequentially engage the sides of several pulleys, preventing them from falling off during translation. An outward protrusion is also provided inside the third horizontal slide rail, extending along its length and used for limiting movement; it engages within the slide rail. In this way, the slide rail and the end baffle can be limited in the lifting direction. When the cast-in-place pile is lifted or lowered, the end baffle has a groove and is limited in the lifting direction through the protrusion. The lifting or lowering of the cast-in-place pile can only slide with the end baffle and cannot drive the end baffle to move up. When the cast-in-place pile moves horizontally, the end baffle is not limited and can be driven forward by the cast-in-place pile. The friction is reduced by several pulleys. The limiting effect of the end baffle and the protrusion can achieve stability during the movement.

[0026] Further optimization involves sequentially and spaced out several positioning and anti-sway components along the length of the cast-in-place pile. Several positioning and anti-sway components can be provided, and end baffles and pulleys can be provided on the inner sides of both the first and second horizontal slide rails to form a positioning and anti-sway component.

[0027] Further solutions:

[0028] The present invention also provides a sliding method for a directional sliding device for cast-in-place piles, comprising the following steps:

[0029] S1: Excavate the soil around the cast-in-place pile to form a circumferential gap;

[0030] S2: After excavation is completed, standardized retaining wall supports are installed on the outside of the circumferential gap;

[0031] S3: Pour bottom slab sealing concrete at the bottom of the circumferential gap, and install the second connector and the jacking expansion joint;

[0032] S4: Control the jacking telescopic component to push the second connecting component upward, so that the bottom of the cast-in-place pile is suspended in the air;

[0033] S5: Then install the first connector and the sliding assembly. After installation, control the jacking telescopic component to retract so that the first connector falls on the first horizontal slide rail.

[0034] S6: At this time, install the first side-push expansion joint and remove the top-push expansion joint. Through the pushing of the first side-push expansion joint, the cast-in-place pile slides laterally.

[0035] S7: After sliding to the designated position, reinstall the jacking telescopic component and make the jacking telescopic component press against the second connecting component;

[0036] S8: Remove the sliding assembly and the first side thrust expansion member, and retract the jacking expansion member to allow the cast-in-place pile to fall to the bottom bearing layer, and then reinforce the bottom of the cast-in-place pile with grout.

[0037] S9: Finally, remove all internal components and backfill in the circumferential gap.

[0038] In a further optimization, step S2 also includes the following steps:

[0039] After installing standardized retaining walls on the outside of the circumferential gap, positioning and anti-sway components also need to be installed.

[0040] The positioning and anti-sway component includes a slide rail assembly mounted on both sides of the retaining wall, the slide rail assembly being located between the first connector and the second connector; the slide rail assembly includes third horizontal slide rails disposed on both sides of the cast-in-place pile, the two third horizontal slide rails slidably clamping the cast-in-place pile inside.

[0041] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0042] This invention provides a directional sliding device and method for cast-in-place piles. Using this solution, engineering piles that exceed the allowable deviation of the specifications can be moved to a designated position, avoiding problems such as re-piling; reducing the time for handling problematic piles and improving construction efficiency. Attached Figure Description

[0043] To more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0044] Figure 1 A cross-sectional view of a directional sliding device for cast-in-place piles provided by the present invention;

[0045] Figure 2 Provided by the present invention Figure 1 Enlarged view of point A in the middle;

[0046] Figure 3 A top view of the steel embedded part provided by the present invention;

[0047] Figure 4 A plan view of the steel embedded part provided for this invention;

[0048] Figure 5 This is a schematic diagram of the translation drive at the top first side push telescopic member provided by the present invention;

[0049] Figure 6 This is a schematic diagram of the translation drive at the bottom second side push telescopic member provided by the present invention;

[0050] Figure 7 This is a top view schematic diagram of the positioning and anti-sway component and the cast-in-place pile provided by the present invention.

[0051] The attached diagram shows the markings and corresponding component names:

[0052] 1-Cast-in pile, 2-Wall protection, 3-First connector, 4-Second connector, 5-Pushing expansion joint, 6-First side-push expansion joint, 7-First horizontal slide rail, 8-Steel embedded part, 9-Anchor bar, 10-Second horizontal slide rail, 11-Second side-push expansion joint, 12-Positioning anti-sway assembly, 1201-Slide rail assembly, 1202-Pulley assembly, 1203-End baffle, 1204-Outer protrusion. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0054] Example 1: This Example 1 provides a directional sliding device for cast-in-place piles, such as... Figures 1-7 As shown, it includes:

[0055] The retaining wall 2 is arranged around the cast-in-place pile 1, and a circumferential gap is left between it and the cast-in-place pile 1;

[0056] The connecting assembly includes a first connector 3 and a second connector 4, both of which are fixed to the side wall of the cast-in-place pile 1 and distributed on the upper and lower sides of the center of the cast-in-place pile 1.

[0057] The sliding assembly includes a first horizontal slide rail 7 mounted on both sides of the protective wall 2, and the first connecting member 3 is located above the first horizontal slide rail 7;

[0058] The jacking telescopic component 5 is located below the second connecting component 4, and its output end abuts against the second connecting component 4. The jacking telescopic component 5 is used to drive the grouting pile 1 to rise and fall. The rising and falling of the grouting pile 1 can cause the first connecting component 3 to move upward away from the first horizontal slide rail 7, or to move downward and place on the first horizontal slide rail 7.

[0059] The first side-push telescopic component 6 is fixed on the first horizontal slide rail 7 and is used to drive the grouting pile 1 to slide along the length direction of the first horizontal slide rail 7.

[0060] Compared to existing technologies, which suffer from high costs associated with re-piling, significant losses due to pile misalignment leading to pile scrapping, and lengthy construction cycles requiring new re-piling plans, this invention provides a directional sliding device for cast-in-place piles 1. This device can move piles exceeding permissible deviations to designated positions, avoiding the need for re-piling; it also reduces the time required to handle problematic piles and improves construction efficiency. Specifically, the soil around the problematic pile is first excavated, followed by the installation of a retaining wall 2 to support the soil. The retaining wall 2 can be made of standardized steel. After support is completed, the direction in which the cast-in-place pile 1 needs to be moved is determined, and sliding components are pre-installed along this direction. Matching first connecting member 3, second connecting member 4, jacking telescopic member 5, and first side-pushing telescopic member 6 are then installed. Both the first connecting member 3 and second connecting member 4 can be made of structural steel. The second connecting member 4 is located at the bottom of the cast-in-place pile 1. The jacking telescopic member 5 can be a hydraulic cylinder, fixed at the bottom, whose output end lifts the second connecting member 4, causing the cast-in-place pile 1 to rise, leaving the bottom suspended. Subsequently, a first horizontal sliding device is installed. The first horizontal slide rail 7 is fixed at both ends to the two sides of the retaining wall 2. After installation, the jacking expansion member 5 is retracted, allowing the first connecting member 3 to be placed on the first horizontal slide rail 7, at which point the cast-in-place pile 1 remains suspended. Then, the cast-in-place pile 1 is pushed horizontally by the first side-pushing expansion member 6, which can be a hydraulic cylinder, and slides along the first horizontal slide rail 7. When it reaches the designated position, the jacking expansion member 5 is reinstalled, and the cast-in-place pile 1 is lifted upwards, causing the first connecting member 3 to disengage from the first horizontal slide rail 7. The first horizontal slide rail 7 is then removed, and the jacking expansion member 5 is retracted, allowing the cast-in-place pile 1 to fall into the bottom bearing layer, thus completing the displacement of the cast-in-place pile 1. This method allows engineering piles exceeding the allowable deviation to be moved to the designated position, avoiding problems such as re-piling; it also reduces the time spent dealing with problematic piles and improves construction efficiency.

[0061] In some possible embodiments, in order to achieve stable lateral displacement of the cast-in-place pile 1, a first horizontal slide rail 7 is provided on both sides of the cast-in-place pile 1, and a first connecting member 3 is provided above the two first horizontal slide rails 7.

[0062] Each of the two first horizontal slide rails 7 is fixed with a first side push telescopic member 6, and the output end of the first side push telescopic member 6 is used to push the first connecting member 3 to slide.

[0063] In some possible embodiments, to improve the connection strength of the first connector 3 and the second connector 4, a steel embedded part 8 is also included, and the first connector 3 and the second connector 4 are respectively connected to the cast-in-place pile 1 through the steel embedded part 8;

[0064] The steel embedded part 8 is arc-shaped to fit the cast-in-place pile 1, and the concave surface of the steel embedded part 8 has several anchor bars that can be inserted into the cast-in-place pile 1. In this scheme, the first connecting part 3 and the second connecting part 4 are respectively welded to their respective steel embedded parts 8. The steel embedded part 8 is an arc-shaped surface that fits the cast-in-place pile 1 so as to be tightly attached to the side wall of the cast-in-place pile 1. During installation, holes are first drilled in the cast-in-place pile 1, and then several anchor bars are inserted into the corresponding holes to achieve stable installation.

[0065] In some possible embodiments, in order to achieve stable jacking and lateral displacement of the cast-in-place pile 1, the sliding assembly further includes a second horizontal slide rail 10 mounted on both sides of the retaining wall 2;

[0066] The bottom of the cast-in-place pile 1 is provided with a second horizontal slide rail 10 on both sides; the bottom of the cast-in-place pile 1 is provided with a jacking telescopic component 5 on both sides, and a second connecting component 4 is provided above the two jacking telescopic components 5.

[0067] The lifting and lowering of the jacking telescopic component 5 allows the second connecting component 4 to detach upward from the second horizontal slide rail 10, or to descend and be placed on the second horizontal slide rail 10, thus slidingly connecting with the second horizontal slide rail 10. In this scheme, both ends of the second horizontal slide rail 10 are fixedly connected to both sides of the retaining wall 2, and second horizontal slide rails 10 are provided on both sides of the bottom of the cast-in-place pile 1; the second horizontal slide rail 10 and the jacking telescopic component 5 are arranged side by side, and the jacking is performed by the two jacking telescopic components 5 located on both sides to improve the stability during the lifting and lowering process; the setting of the second horizontal slide rail 10 allows the two second connecting components 4 to fall on the two second horizontal slide rails 10 respectively, thereby restricting the bottom of the cast-in-place pile 1. In this way, the first connecting component 3 at the top of the cast-in-place pile 1 can slide on the first horizontal slide rail 7, and the second connecting component 4 at the bottom of the cast-in-place pile 1 can slide on the second horizontal slide rail 10, thereby achieving stable lateral displacement of the cast-in-place pile 1.

[0068] In some possible embodiments, in order to drive the bottom of the cast-in-place pile 1 to make lateral displacement, a second lateral pusher telescopic member 11 is also included. The second lateral pusher telescopic member 11 is fixed on both of the two second horizontal slide rails 10. The second lateral pusher telescopic member 11 is used to push the second connecting member 4 to slide.

[0069] In some possible embodiments, since the cast-in-place pile 1 itself has a large weight, it is likely to sway during the lifting or translating process of the cast-in-place pile 1, which may cause the cast-in-place pile 1 to detach in severe cases. Therefore, in order to avoid the swaying of the cast-in-place pile 1 during the movement, the cast-in-place pile 1 is clamped in advance, and a positioning and anti-sway component 12 is also included. The positioning and anti-sway component 12 includes a slide rail assembly 1201 mounted on both sides of the protective wall 2. The slide rail assembly 1201 is located between the first connecting member 3 and the second connecting member 4.

[0070] The slide rail assembly 1201 includes third horizontal slide rails disposed on both sides of the cast-in-place pile 1, and the two third horizontal slide rails slide and clamp the cast-in-place pile 1 inside.

[0071] In some possible embodiments, as a specific structure of the positioning and anti-sway component 12, a pulley block 1202 and an end baffle 1203 are also clamped between the third horizontal slide rail and the grouting pile 1;

[0072] The end baffle 1203 is arranged along the length direction of the third horizontal slide rail. The side of the end baffle 1203 facing the cast-in-place pile 1 is a plane, and the other side of the end baffle 1203 has a groove, which is arranged along the length direction of the end baffle 1203.

[0073] The pulley block 1202 includes a plurality of pulleys, each pulley having an intermediate shaft and rotating wheels located at both ends of the intermediate shaft, and the axis of the pulley is parallel to the axis of the cast-in-place pile 1; the plurality of pulleys are arranged sequentially along the length of the end baffle 1203, one side of each pulley is inserted into a groove and abuts against the bottom of the groove, and the other side of the pulley can travel on the side wall of the third horizontal slide rail;

[0074] The third horizontal slide rail has an outward protrusion 1204 on the side facing the pulley assembly 1202. The outward protrusion 1204 is arranged along the length of the third horizontal slide rail and can extend between two rotating wheels in the pulley system. In this design, during the installation of the third horizontal slide rail, the pulley assembly 1202 and the end baffle 1203 need to be clamped within it. One side of the end baffle 1203 is flat to facilitate sliding between the pile 1 and the side of the end baffle 1203 during lifting and lowering. The other side of the end baffle 1203 is a groove, which is elongated to sequentially engage the sides of several pulleys, preventing them from falling off during translation. An outward protrusion 1204 is also provided inside the third horizontal slide rail, arranged along its length and used for limiting movement; it engages within the slide rail. The end baffle 1203 can limit the lifting and lowering direction of the slide rail and the end baffle 1203. When the cast-in-place pile 1 is lifted or lowered, the end baffle 1203 has a groove and is limited in the lifting and lowering direction by the protrusion 1204. The lifting and lowering of the cast-in-place pile 1 can only slide with the end baffle 1203 and cannot drive the end baffle 1203 to move upward. When the cast-in-place pile 1 is translated, the end baffle 1203 is not limited and can be driven forward by the cast-in-place pile 1. The friction is reduced by several pulleys. The stability during the movement can be achieved by the limiting effect of the end baffle 1203 and the protrusion 1204.

[0075] In some possible embodiments, a plurality of positioning and anti-sway components 12 are arranged sequentially at intervals along the length direction of the cast-in-place pile 1. The positioning and anti-sway components 12 can be arranged in a plurality of ways. End baffles 1203 and pulleys can also be arranged on the inner sides of the first horizontal slide rail 7 and the second horizontal slide rail 10, thereby forming the positioning and anti-sway components 12.

[0076] Example 2: Based on Example 1, Example 2 further provides a sliding method for a directional sliding device for cast-in-place piles, including the following specific steps:

[0077] 1. First, the soil around the problematic pile is excavated to form a circumferential gap, which facilitates the installation of the directional sliding device for the cast-in-place pile 1 and leaves room for the displacement of the cast-in-place pile 1.

[0078] 2. After excavation is completed, or during the excavation process, a prefabricated retaining wall 2 is installed on the sidewall of the soil for support to prevent soil landslides or collapses.

[0079] 3. After the retaining wall 2 is installed, determine the direction in which the cast-in-place pile 1 needs to be moved, and set up a matching directional sliding device for the cast-in-place pile 1 along this direction. First, drill holes at the top and bottom positions of the cast-in-place pile 1 so that the anchor bars of the steel embedded part 8 can be inserted into the holes, so as to achieve stable installation of the first connector 3 and the second connector 4 respectively.

[0080] 4. Then install the positioning and anti-sway component 12 to slide and clamp the two sides of the cast-in-place pile 1 inside, so as to prevent the cast-in-place pile 1 from shaking during the displacement process.

[0081] 5. Pour bottom slab concrete at the bottom of the circumferential gap and temporarily fix the jacking expansion member 5 at the bottom so that the output end of the jacking expansion member 5 abuts against the second connecting member 4.

[0082] 6. Control the jacking telescopic component 5 to push the second connecting component 4 upward, so that the bottom of the cast-in-place pile 1 is suspended and detached from the bottom by more than 50mm.

[0083] 7. Then install the first horizontal slide rail 7 and the second horizontal slide rail 10. After installation, control the top push telescopic component 5 to retract, so that the first connecting component 3 falls on the first horizontal slide rail 7 and the second connecting component 4 falls on the second horizontal slide rail 10. Remove the bottom top push telescopic component 5, install the first side push telescopic component 6 at the top, and install the second side push telescopic component 11 at the bottom.

[0084] 8. At this time, the grouting pile 1 is stably translated by the synchronous pushing of the first side-pushing expansion member 6 and the second side-pushing expansion member 11.

[0085] 9. After sliding to the designated position, reinstall the push-pull telescopic component 5 at the bottom and make the push-pull telescopic component 5 press against the second connecting component 4.

[0086] 10. Remove the first horizontal slide rail 7, the second horizontal slide rail 10, the first side-push expansion member 6 and the second side-push expansion member 11, and retract the top-push expansion member 5 to allow the cast-in-place pile 1 to fall to the bottom bearing layer, and then reinforce the bottom of the cast-in-place pile 1 with grout.

[0087] 11. Finally, remove all internal components and backfill the circumferential gap.

[0088] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A directional sliding device for cast-in-place piles, characterized in that, include: A retaining wall (2) is provided around the cast-in-place pile (1) and a circumferential gap is left between it and the cast-in-place pile (1); The connecting component includes a first connector (3) and a second connector (4), both of which are fixed to the side wall of the cast-in-place pile (1) and distributed on the upper and lower sides of the center of the cast-in-place pile (1). The sliding assembly includes a first horizontal slide rail (7) mounted on both sides of the retaining wall (2), and the first connector (3) is located above the first horizontal slide rail (7); The jacking telescopic component (5) is located below the second connecting component (4) and its output end abuts against the second connecting component (4). The jacking telescopic component (5) is used to drive the grouting pile (1) to rise and fall. The rising and falling of the grouting pile (1) can cause the first connecting component (3) to move upward away from the first horizontal slide rail (7) or to move downward and place on the first horizontal slide rail (7). The first side-push telescopic component (6) is fixed on the first horizontal slide rail (7) and is used to drive the grouting pile (1) to slide along the length direction of the first horizontal slide rail (7).

2. The directional sliding device for cast-in-place piles according to claim 1, characterized in that, The cast-in-place pile (1) is provided with a first horizontal slide rail (7) on both sides, and a first connector (3) is provided above the two first horizontal slide rails (7). Two first horizontal slide rails (7) are each fixed with a first side push telescopic component (6), and the output end of the first side push telescopic component (6) is used to push the first connecting component (3) to slide.

3. The directional sliding device for cast-in-place piles according to claim 1, characterized in that, It also includes steel embedded parts (8), and the first connector (3) and the second connector (4) are respectively connected to the cast-in-place pile (1) through the steel embedded parts (8); The steel embedded part (8) is in the shape of an arc that is compatible with the cast-in-place pile (1), and the concave surface of the steel embedded part (8) has a number of anchor bars (9) that can be inserted into the cast-in-place pile (1).

4. The directional sliding device for cast-in-place piles according to claim 1, characterized in that, The sliding assembly also includes a second horizontal slide rail (10) mounted on both sides of the retaining wall (2). The bottom of the cast-in-place pile (1) is provided with a second horizontal slide rail (10) on both sides; the bottom of the cast-in-place pile (1) is provided with a jacking telescopic component (5) on both sides, and a second connecting component (4) is provided above the two jacking telescopic components (5). The lifting and lowering of the push-up telescopic member (5) can cause the second connecting member (4) to move upward away from the second horizontal slide rail (10), or to move downward and place on the second horizontal slide rail (10), and slide in connection with the second horizontal slide rail (10).

5. A directional sliding device for cast-in-place piles according to claim 4, characterized in that, It also includes a second side push telescopic component (11), which is fixed on both of the second horizontal slide rails (10). The second side push telescopic component (11) is used to push the second connecting component (4) to slide.

6. The directional sliding device for cast-in-place piles according to claim 1, characterized in that, It also includes a positioning and anti-sway component (12), which includes a slide rail assembly (1201) mounted on both sides of the protective wall (2), and the slide rail assembly (1201) is located between the first connector (3) and the second connector (4); The slide rail assembly (1201) includes a third horizontal slide rail disposed on both sides of the cast-in-place pile (1), and the two third horizontal slide rails slide and clamp the cast-in-place pile (1) inside.

7. A directional sliding device for cast-in-place piles according to claim 6, characterized in that, The third horizontal slide rail and the grouting pile (1) are also sandwiched between a pulley block (1202) and an end baffle (1203). The end baffle (1203) is arranged along the length direction of the third horizontal slide rail. The side of the end baffle (1203) facing the cast-in-place pile (1) is a plane, and the other side of the end baffle (1203) has a groove. The groove is arranged along the length direction of the end baffle (1203). The pulley block (1202) includes several pulleys, each pulley having a central shaft and rotating wheels located at both ends of the central shaft, and the axis of the pulley is parallel to the axis of the cast-in-place pile (1); the several pulleys are arranged sequentially along the length of the end baffle (1203), one side of each pulley is inserted into a groove and abuts against the bottom of the groove, and the other side of the pulley can travel on the side wall of the third horizontal slide rail; The third horizontal slide rail has an outward protrusion (1204) on the side facing the pulley block (1202). The outward protrusion (1204) is arranged along the length direction of the third horizontal slide rail and can extend into the space between the two rotating wheels in the pulley.

8. A directional sliding device for cast-in-place piles according to claim 6, characterized in that, Several positioning and anti-sway components (12) are arranged at intervals along the length of the cast-in-place pile (1).

9. A sliding method for a directional sliding device for cast-in-place piles according to any one of claims 1 to 8, characterized in that, Includes the following steps: S1: Excavate the soil around the pile of the cast-in-place pile (1) to form a circumferential gap; S2: After excavation, a standardized retaining wall (2) is installed to support the outside of the circumferential gap; S3: Pour bottom slab sealing concrete at the bottom of the circumferential gap and install the second connector (4) and the jacking expansion joint (5); S4: Control the jacking expansion joint (5) to push the second connecting joint (4) upward, so that the bottom of the cast-in-place pile (1) is suspended; S5: Then install the first connector (3) and the sliding assembly. After installation, control the top push telescopic component (5) to retract so that the first connector (3) falls on the first horizontal slide rail (7). S6: At this time, the first side-push expansion member (6) is installed and the top-push expansion member (5) is removed. Through the pushing of the first side-push expansion member (6), the cast-in-place pile (1) is laterally slid. S7: After sliding to the designated position, reinstall the push-pull telescopic component (5) and make the push-pull telescopic component press against the second connecting component (4). S8: Remove the sliding assembly and the first side thrust expansion member (6), and retract the top thrust expansion member (5) to allow the cast-in-place pile (1) to fall to the bottom bearing layer, and then reinforce the bottom of the cast-in-place pile with grout; S9: Finally, remove all internal components and backfill in the circumferential gap.

10. The sliding method of the directional sliding device for cast-in-place piles according to claim 9, characterized in that, Step S2 further includes the following steps: After the standardized protective wall (2) is installed and supported on the outside of the circumferential gap, the positioning anti-sway component (12) also needs to be installed. The positioning and anti-sway component (12) includes a slide rail assembly (1201) mounted on both sides of the retaining wall (2), the slide rail assembly (1201) being located between the first connector (3) and the second connector (4); the slide rail assembly (1201) includes a third horizontal slide rail disposed on both sides of the cast-in-place pile (1), the two third horizontal slide rails slidably clamping the cast-in-place pile (1) inside.

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