Cast-in-place pile directional sliding device and sliding method thereof

Abstract

The invention discloses a cast-in-place pile directional sliding device and a sliding method thereof, and relates to the technical field of civil engineering construction. The connecting assembly comprises a first connecting piece and a second connecting piece, and the first connecting piece and the second connecting piece are fixed to the side wall of the cast-in-place pile and distributed on the upper side and the lower side of the center of the cast-in-place pile; the sliding assembly comprises first horizontal sliding rails erected on the two sides of the protection wall. The pushing telescopic piece is located below the second connecting piece, and the pushing telescopic piece is used for driving the cast-in-place pile to ascend and descend; the first connecting piece can be upwards separated from the first horizontal sliding rail or downwards placed on the first horizontal sliding rail through lifting of the cast-in-place pile; the first side pushing telescopic piece is fixed to the first horizontal sliding rail and used for driving the cast-in-place pile to slide in the length direction of the first horizontal sliding rail. By the adoption of the scheme, the engineering piles exceeding the standard allowable deviation can be moved to the designated position, and the problems of pile refilling and the like are avoided; and the problem pile processing time is shortened, and the construction efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of civil engineering construction, and in particular to a cast-in-place pile directional sliding device and a sliding method thereof. Background Art

[0002] Piles are often misaligned during construction. When piles are misaligned, they are often scrapped. The commonly used method is to scrap the piles with larger deviations, then add piles on both sides of the problem piles (usually 2 piles), and then make a connecting beam to connect the two piles to replace the original scrapped piles. The new piles must wait until the concrete reaches the required strength before the next step of construction can be carried out. Since the cost of adding piles is relatively high, the scrapping of piles due to misalignment often results in large losses. The construction period for coming up with a new plan to add piles is long and the cost is high, which has a greater impact on the construction period of the project. Summary of the Invention

[0003] The present invention aims to solve the deficiencies of the prior art and to provide a directional sliding device for cast-in-place piles and a sliding method thereof. By adopting this solution, engineering piles that exceed the allowable deviation of the specification can be moved to a specified position, avoiding problems such as re-pile filling; reducing the time for processing problem piles and improving construction efficiency.

[0004] The present invention is achieved through the following technical solutions: A directional sliding device for cast-in-place piles, comprising: A retaining wall is arranged around the bored piles and leaves an annular gap between the retaining wall and the bored piles; A connecting assembly comprising a first connecting member and a second connecting member, wherein the first connecting member and the second connecting member are both fixed to the side walls of the bored pile and are distributed above and below the center of the bored pile; A sliding assembly comprising first horizontal slide rails mounted on both sides of the guard wall, wherein the first connecting member is located above the first horizontal slide rails; A push telescopic member is located below the second connecting member, and its output end abuts against the second connecting member. The push telescopic member is used to drive the cast-in-place pile to rise and fall; the raising and lowering of the cast-in-place pile can cause the first connecting member to detach upward from the first horizontal slide rail, or to descend and be placed on the first horizontal slide rail; The first side-pushing telescopic member is fixed on the first horizontal slide rail and is used to drive the cast-in-place pile to slide along the length direction of the first horizontal slide rail.

[0005] Compared with the prior art, due to the high cost of re-pile, the project piles are often scrapped due to the deviation of the project piles, which often results in large losses, and the long construction period for re-pile, etc., the present invention provides a directional sliding device for bored piles. By adopting this solution, the project piles that exceed the allowable deviation of the specification can be moved to the specified position, avoiding the problem of re-pile; reducing the time for processing problem piles and improving construction efficiency. In the specific solution, the soil is first excavated around the problem pile, and then a retaining wall is installed to support the soil, wherein the retaining wall can be made of standardized steel retaining wall; after the support is completed, the direction in which the bored pile needs to move is determined, and the sliding assembly is pre-erected along this direction, and the matching first connecting member, second connecting member, push telescopic member and first side push telescopic member are installed. The first connecting member and the second connecting member can both be made of steel sections. The second connecting member is located at the bottom of the bored pile. The push telescopic member can be a hydraulic cylinder, which is fixed to the bottom. The output end lifts the second connecting member to make the bored pile rise, and the bottom is suspended in the air; then the first water The two ends of the smooth rail and the first horizontal slide rail are respectively fixed to the two sides of the guard wall. After the installation is completed, the top push telescopic member is retracted to place the first connecting member on the first horizontal slide rail. At this time, the bored pile is still suspended in the air; then the bored pile is pushed horizontally by the first side push telescopic member and slides along the first horizontal slide rail. The first side push telescopic member can use a hydraulic cylinder; when it moves to the designated position, the top push telescopic member is reinstalled, and the bored pile is lifted upward to make the first connecting member upward and detached from the first horizontal slide rail. Then the first horizontal slide rail is removed and the top push telescopic member is controlled to retract so that the bored pile falls on the bottom bearing layer to complete the displacement of the bored pile. Through the above scheme, the engineering piles that exceed the allowable deviation of the specification can be moved to the designated position, avoiding the problem of re-piling; reducing the time for processing problem piles and improving construction efficiency.

[0006] Further optimization, in order to achieve stable lateral displacement of the bored pile, first horizontal slide rails are provided on both sides of the bored pile, and first connecting members are provided above the two first horizontal slide rails; A first side-pushing telescopic member is fixed on each of the two first horizontal slide rails, and an output end of the first side-pushing telescopic member is used to push the first connecting member to slide.

[0007] Further optimization, in order to improve the connection strength between the first connecting member and the second connecting member, further comprising a steel embedded member, wherein the first connecting member and the second connecting member are connected via the steel embedded member and the cast-in-place pile respectively; The embedded steel part has an arc shape that matches the cast-in-place pile, and its concave surface carries several anchor bars that can penetrate the cast-in-place pile. In this solution, the first and second connecting parts are welded to their respective embedded steel parts. The embedded steel parts have an arc surface that matches the cast-in-place pile, so that they fit snugly against the sidewall of the cast-in-place pile. During installation, holes are first drilled in the cast-in-place pile, and then several anchor bars are inserted into the corresponding holes to achieve a stable installation.

[0008] Further optimization, in order to achieve stable jacking and lateral displacement of the cast-in-place pile, the sliding assembly further includes a second horizontal slide rail erected on both sides of the retaining wall; A second horizontal slide rail is provided on both sides of the bottom of the cast-in-place pile; a push-telescopic member is provided on both sides of the bottom of the cast-in-place pile, and a second connecting member is provided above the two push-telescopic members; The lifting and lowering of the pushing telescopic member can cause the second connecting member to detach upward from the second horizontal slide rail, or to descend and be placed on the second horizontal slide rail, and be slidably connected to the second horizontal slide rail. In this solution, both ends of the second horizontal slide rail are fixedly connected to the two sides of the guard wall, and second horizontal slide rails are provided on both sides of the bottom of the cast-in-place pile; the second horizontal slide rail and the pushing telescopic member are arranged side by side, and the two pushing telescopic members located on both sides are used for pushing to improve the stability during the lifting and lowering process; through the provision of the second horizontal slide rail, the two second connecting members can fall on the two second horizontal slide rails respectively to achieve the restriction of the bottom of the cast-in-place pile, so that the first connecting member at the top of the cast-in-place pile can slide on the first horizontal slide rail, and the second connecting member at the bottom of the cast-in-place pile can slide on the second horizontal slide rail to achieve stable lateral displacement of the cast-in-place pile body.

[0009] Further optimization is to drive the bottom of the bored pile to move laterally, and also include a second side-pushing telescopic member, and the second side-pushing telescopic member is fixed on each of the two second horizontal slide rails, and the second side-pushing telescopic member is used to push the second connecting member to slide.

[0010] A further optimization is that since the bored pile itself has a large weight, it is very likely to shake during the process of lifting or translation of the bored pile, which may cause the bored pile to fall off in severe cases. Therefore, in order to avoid the bored pile shaking during the movement, the bored pile is clamped in advance, and a positioning anti-sway component is also included. The positioning anti-sway component includes a slide rail group erected on both sides of the guard wall, and the slide rail group is located between the first connecting member and the second connecting member; The slide rail group includes third horizontal slide rails which are respectively arranged on both sides of the cast-in-place pile, and the two third horizontal slide rails slide and clamp the cast-in-place pile.

[0011] As a further optimization, as a specific structure of the positioning anti-sway component, a pulley block and an end baffle are further sandwiched between the third horizontal slide rail and the cast-in-place pile; The end baffle is arranged along the length direction of the third horizontal slide rail, the side of the end baffle facing the cast-in-place pile is flat, and the other side of the end baffle is provided with a groove, and the groove is arranged along the length direction of the end baffle; The pulley assembly includes a plurality of pulleys, each of which includes an intermediate shaft and rotating wheels located at both ends of the intermediate shaft, and the axes of the pulleys are parallel to the axes of the cast-in-place piles; the plurality of pulleys are sequentially arranged along the length direction of the end baffle, one side of the plurality of pulleys is inserted into the groove and abuts against the bottom of the groove, and the other side of the pulleys can travel on the side wall of the third horizontal slide rail; The third horizontal slide rail has a protruding piece on the side facing the pulley assembly, and the protruding piece is arranged along the length direction of the third horizontal slide rail, and the protruding piece can extend between the two rotating wheels in the pulley. In this solution, during the installation of the third horizontal slide rail, the pulley assembly and the end baffle need to be clamped inside at the same time, wherein one side of the end baffle is a plane to facilitate sliding with the side of the end baffle during the lifting and lowering of the cast-in-place pile; the other side of the end baffle is a groove, and the groove is long and strip-shaped, so that the side edges of several pulleys can be sequentially inserted therein, so that the pulley will not fall during the translation process; a protruding piece is also arranged on the inside of the third horizontal slide rail, and the protruding piece is arranged along the length direction of the third horizontal slide rail and is used for limiting the position, and it is inserted into 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, since the end baffle has a groove and is limited in the lifting direction through the convex part, the lifting 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, and the friction force is reduced by a number of pulleys; due to the limiting effect of the end baffle and the convex part, stability in the movement process can be achieved.

[0012] For further optimization, several positioning and anti-sway components are arranged in sequence along the length direction of the cast-in-place pile. Among them, several positioning and anti-sway components can be set, and end baffles and pulleys can be set on the inner sides of the first horizontal slide rail and the second horizontal slide rail to form a positioning and anti-sway component.

[0013] Further solutions: The present invention also provides a sliding method of a cast-in-place pile directional sliding device, comprising the following steps: S1: Excavate the soil around the bored pile to form an annular gap; S2: After excavation is completed, a standardized retaining wall is installed to support the outside of the annular gap; S3: pouring the bottom plate sealing concrete at the bottom of the annular gap, and installing the second connecting piece and the pushing telescopic piece; S4: Control the pushing telescopic member to push the second connecting member upward, so that the bottom of the cast-in-place pile is suspended in the air; S5: Then, the first connecting member and the sliding assembly are installed. After the installation is completed, the pushing telescopic member is controlled to retract so that the first connecting member falls on the first horizontal slide rail; S6: At this time, the first side-pushing telescopic member is installed, and the top-pushing telescopic member is removed, and the cast-in-place pile is pushed laterally by the first side-pushing telescopic member; S7: After sliding to the designated position, reinstall the pushing telescopic member and make it press against the second connecting member; S8: dismantling the sliding assembly and the first side push telescopic member, and retracting the top push telescopic member to drop the bored pile to the bottom bearing layer, and then grouting the bottom of the bored pile for reinforcement; S9: Finally, all internal components are removed and backfill is performed in the annular gap.

[0014] For further optimization, step S2 further includes the following steps: After installing the standardized retaining wall support on the outside of the annular gap, it is also necessary to install the positioning anti-sway components; The positioning and anti-sway assembly includes a slide rail group erected on both sides of the guard wall, and the slide rail group is located between the first connecting member and the second connecting member; the slide rail group includes a third horizontal slide rail arranged on both sides of the cast-in-place pile, and the two third horizontal slide rails slide and clamp the cast-in-place pile.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: The present invention provides a directional sliding device for cast-in-place piles and a sliding method thereof. By adopting this solution, engineering piles that exceed the allowable deviation of the specification can be moved to a specified position, avoiding problems such as re-pile replenishment; reducing the time for processing problematic piles and improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the examples. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be considered as limiting the scope. A person of ordinary skill in the art can also derive other relevant drawings based on these drawings without inventive effort. In the drawings: Figure 1 A cross-sectional view of a directional sliding device for cast-in-place piles provided by the present invention; Figure 2 The present invention provides Figure 1 Enlarged view of point A in the middle; Figure 3 A top view of the steel embedded part provided by the present invention; Figure 4 A plan view of the steel embedded part provided by the present invention; Figure 5 A schematic diagram of the translation drive of the top first side-pushing telescopic member provided by the present invention; Figure 6A schematic diagram of the translation drive of the second side-pushing telescopic member at the bottom provided by the present invention; Figure 7 This is a top plan schematic diagram of the cooperation between the positioning and anti-sway components and the cast-in-place piles provided by the present invention.

[0017] Markings and corresponding parts names in the accompanying drawings: 1- cast-in-place pile, 2- guard wall, 3- first connecting piece, 4- second connecting piece, 5- top push telescopic piece, 6- first side push telescopic piece, 7- first horizontal slide rail, 8- embedded steel parts, 9- anchor bar, 10- second horizontal slide rail, 11- second side push telescopic piece, 12- positioning anti-sway assembly, 1201- slide rail group, 1202- pulley group, 1203- end baffle, 1204- protruding part. DETAILED DESCRIPTION

[0018] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with examples and drawings. The exemplary embodiments of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0019] Example 1: This example 1 provides a directional sliding device for cast-in-place piles, such as Figure 1-Figure 7 Shown, including: A retaining wall 2 is arranged around the bored pile 1 and leaves an annular gap between the retaining wall 2 and the bored pile 1; A connecting assembly comprising a first connecting member 3 and a second connecting member 4, both of which are fixed to the side walls of the bored pile 1 and are located above and below the center of the bored pile 1; The sliding assembly includes a first horizontal slide rail 7 mounted on both sides of the guard wall 2, and the first connecting member 3 is located above the first horizontal slide rail 7; A push telescopic member 5 is located below the second connecting member 4, and its output end abuts against the second connecting member 4. The push telescopic member 5 is used to drive the cast-in-place pile 1 to rise and fall; the lifting and lowering of the cast-in-place pile 1 can cause the first connecting member 3 to upwardly detach from the first horizontal slide rail 7, or to descend and be placed on the first horizontal slide rail 7; The first side-pushing telescopic member 6 is fixed on the first horizontal slide rail 7 and is used to drive the cast-in-place pile 1 to slide along the length direction of the first horizontal slide rail 7 .

[0020] Compared with the prior art, due to the high cost of re-pile, the project piles are often scrapped due to the deviation of the project piles, and the construction period is long due to the need to come up with a new plan to re-pile. The present invention provides a directional sliding device for bored piles 1. By adopting this solution, the project piles that exceed the allowable deviation of the specification can be moved to the specified position, avoiding the problem of re-pile; reducing the time for processing problem piles and improving construction efficiency. In the specific solution, the soil is first excavated around the problem pile, and then a retaining wall 2 is installed to support the soil, wherein the retaining wall 2 can be a standardized steel retaining wall 2; after the support is completed, the direction in which the bored pile 1 needs to move is determined, and a sliding assembly is pre-erected along this direction, and a matching first connecting member 3, a second connecting member 4, a push telescopic member 5 and a first side push telescopic member 6 are installed. The first connecting member 3 and the second connecting member 4 can both be made of steel sections. The second connecting member 4 is located at the bottom of the bored pile 1. The push telescopic member 5 can be a hydraulic cylinder, which is fixed to the bottom. The output end lifts the second connecting member 4 to make the bored pile 1 rise, and the bottom is suspended in the air; then the first horizontal sliding Rail 7, the two ends of the first horizontal slide rail 7 are respectively fixed to the two sides of the guard wall 2. After the installation is completed, the top push telescopic member 5 is retracted to place the first connecting member 3 on the first horizontal slide rail 7. At this time, the bored pile 1 is still suspended in the air; then the bored pile 1 is pushed horizontally by the first side push telescopic member 6, and slides along the first horizontal slide rail 7. The first side push telescopic member 6 can use a hydraulic cylinder; when it moves to the specified position, the top push telescopic member 5 is reinstalled, and the bored pile 1 is lifted upward to make the first connecting member 3 upwardly detached from the first horizontal slide rail 7, and then the first horizontal slide rail 7 is removed, and the top push telescopic member 5 is controlled to retract to make the bored pile 1 fall on the bottom bearing layer to complete the displacement of the bored pile 1. Through the above scheme, the engineering piles that exceed the allowable deviation of the specification can be moved to the specified position, avoiding the problem of re-piling; reducing the processing time of problem piles and improving construction efficiency.

[0021] In some possible embodiments, in order to achieve stable lateral displacement of the bored pile 1, first horizontal slide rails 7 are provided on both sides of the bored pile 1, and first connecting members 3 are provided above the two first horizontal slide rails 7; A first telescopic side-pushing member 6 is fixed on each of the two first horizontal slide rails 7 , and an output end of the first telescopic side-pushing member 6 is used to push the first connecting member 3 to slide.

[0022] In some possible embodiments, in order to improve the connection strength between the first connecting member 3 and the second connecting member 4, a steel embedded member 8 is further included, and the first connecting member 3 and the second connecting member 4 are respectively connected to the cast-in-place pile 1 through the steel embedded member 8; The embedded steel member 8 is arc-shaped to fit the bored pile 1, and its concave surface carries several anchor bars that can penetrate the bored pile 1. In this solution, the first connector 3 and the second connector 4 are welded to their respective embedded steel members 8. The embedded steel members 8 have arc-shaped surfaces that fit the bored pile 1, ensuring a close fit against the sidewall of the bored pile 1. During installation, holes are first drilled in the bored pile 1, and then several anchor bars are inserted into the corresponding holes to achieve a stable installation.

[0023] In some possible embodiments, in order to achieve stable jacking and lateral displacement of the bored pile 1, the sliding assembly further includes a second horizontal slide rail 10 erected 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 push-telescopic member 5 on both sides, and a second connecting member 4 is provided above the two push-telescopic members 5; The lifting and lowering of the pushing telescopic member 5 can cause the second connecting member 4 to detach upward from the second horizontal slide rail 10, or to be lowered and placed on the second horizontal slide rail 10, and to be slidably connected to the second horizontal slide rail 10. In this solution, both ends of the second horizontal slide rail 10 are fixedly connected to both sides of the guard wall 2, and second horizontal slide rails 10 are provided on both sides of the bottom of the bored pile 1; the second horizontal slide rail 10 and the pushing telescopic member 5 are arranged side by side, and the two pushing telescopic members 5 located on both sides are used for pushing to improve the stability during the lifting and lowering process; through the setting of the second horizontal slide rail 10, the two second connecting members 4 can fall on the two second horizontal slide rails 10 respectively to realize the restriction of the bottom of the bored pile 1, so that the first connecting member 3 at the top of the bored pile 1 can slide on the first horizontal slide rail 7, and the second connecting member 4 at the bottom of the bored pile 1 can slide on the second horizontal slide rail 10 to realize the stable lateral displacement of the bored pile 1.

[0024] In some possible embodiments, in order to drive the bottom of the bored pile 1 to move laterally, a second side-pushing telescopic member 11 is also included. The second side-pushing telescopic member 11 is fixed on each of the two second horizontal slide rails 10. The second side-pushing telescopic member 11 is used to push the second connecting member 4 to slide.

[0025] In some possible embodiments, since the bored pile 1 itself has a large weight, it is likely to shake during the process of lifting or translation of the bored pile 1, which may cause the bored pile 1 to fall off in severe cases. Therefore, in order to prevent the bored pile 1 from shaking during movement, the bored pile 1 is clamped in advance, and a positioning anti-sway component 12 is also included. The positioning anti-sway component 12 includes a slide rail group 1201 erected on both sides of the guard wall 2, and the slide rail group 1201 is located between the first connecting member 3 and the second connecting member 4; The slide rail assembly 1201 includes third horizontal slide rails disposed on both sides of the bored pile 1 , and the two third horizontal slide rails slide and clamp the bored pile 1 therein.

[0026] In some possible embodiments, as a specific structure of the positioning anti-sway component 12, a pulley block 1202 and an end baffle 1203 are further sandwiched between the third horizontal slide rail and the bored pile 1; 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 flat. The other side of the end baffle 1203 has a groove, and the groove is arranged along the length direction of the end baffle 1203. The pulley assembly 1202 includes a plurality of pulleys, each of which includes 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 bored pile 1; the plurality of pulleys are arranged in sequence along the length direction of the end baffle 1203, one side of the plurality of pulleys is stuck in the groove and abuts against the bottom of the groove, and the other side of the pulley can run on the side wall of the third horizontal slide rail; The third horizontal slide rail has a protruding piece 1204 on the side facing the pulley assembly 1202. The protruding piece 1204 is arranged along the length direction of the third horizontal slide rail and can extend between the two rotating wheels in the pulley. In this solution, during the installation of the third horizontal slide rail, the pulley assembly 1202 and the end baffle 1203 need to be clamped inside at the same time, wherein one side of the end baffle 1203 is a plane to facilitate sliding between the side of the end baffle 1203 during the lifting process of the bored pile 1; the other side of the end baffle 1203 is a groove, which is long and strip-shaped to allow the side edges of several pulleys to be sequentially inserted therein, so that the pulleys will not fall during the translation process; a protruding piece 1204 is also arranged on the inner side of the third horizontal slide rail, which is arranged along the length direction of the third horizontal slide rail and is used for limiting the position. It is inserted into the slide rail, so that It can limit the slide rail and the end baffle 1203 in the lifting direction; when the bored pile 1 is lifted or lowered, since the end baffle 1203 has a groove and is limited in the lifting direction through the protruding piece 1204, the lifting of the bored pile 1 can only slide with the end baffle 1203, and cannot drive the end baffle 1203 to move upward; when the bored pile 1 moves horizontally, the end baffle 1203 is not limited at this time, and can be driven forward by the bored pile 1, and the friction force can be reduced through a number of pulleys; the stability during the movement can be achieved through the limiting effect of the end baffle 1203 and the protruding piece 1204.

[0027] In some possible embodiments, a plurality of positioning and anti-sway components 12 are sequentially spaced along the length direction of the cast-in-place pile 1, wherein a plurality of positioning and anti-sway components 12 may be provided, and end baffles 1203 and pulleys may be provided on the inner sides of the first horizontal slide rail 7 and the second horizontal slide rail 10, thereby forming a positioning and anti-sway component 12.

[0028] Example 2: Based on Example 1, this Example 2 further provides a sliding method for a directional sliding device for a cast-in-place pile, comprising the following specific steps: 1. First, excavate the soil around the problem pile to form an annular gap to facilitate the installation of the directional sliding device of the bored pile 1 and to leave space for the displacement of the bored pile 1.

[0029] 2. After the excavation is completed, or during the excavation process, a standardized retaining wall 2 is installed on the side wall of the soil to provide support and prevent the soil from sliding or collapsing.

[0030] 3. After the retaining wall 2 is installed, determine the direction in which the pile 1 needs to be moved and install a matching directional sliding device for the pile 1 in that direction. First, drill holes at the top and bottom of the pile 1 to allow the anchor bars of the embedded steel parts 8 to pass through the holes, thereby ensuring stable installation of the first connector 3 and the second connector 4, respectively.

[0031] 4. Then, the positioning anti-sway component 12 is installed to slide and clamp the two sides of the bored pile 1 inside to prevent the bored pile 1 from shaking during the displacement process.

[0032] 5. Pour the bottom plate sealing concrete at the bottom of the annular gap, and at the same time temporarily fix the pushing telescopic member 5 at the bottom so that the output end of the pushing telescopic member 5 abuts against the second connecting member 4.

[0033] 6. Control the pushing telescopic member 5 to push the second connecting member 4 upward, so that the bottom of the bored pile 1 is suspended in the air and is more than 50 mm away from the bottom.

[0034] 7. Then install the first horizontal slide rail 7 and the second horizontal slide rail 10. After the installation is completed, control the top pushing telescopic member 5 to retract, so that the first connecting member 3 falls on the first horizontal slide rail 7, and the second connecting member 4 falls on the second horizontal slide rail 10, and remove the bottom top pushing telescopic member 5, install the first side pushing telescopic member 6 on the top, and install the second side pushing telescopic member 11 on the bottom.

[0035] 8. At this time, the first side-pushing telescopic member 6 and the second side-pushing telescopic member 11 are used to push synchronously, so that the bored pile 1 can be translated stably.

[0036] 9. After sliding to the designated position, reinstall the pushing telescopic member 5 at the bottom and make the pushing telescopic member 5 press against the second connecting member 4.

[0037] 10. Remove the first horizontal slide rail 7, the second horizontal slide rail 10, the first side push telescopic member 6 and the second side push telescopic member 11, and retract the top push telescopic member 5 to allow the bored pile 1 to fall to the bottom bearing layer, and then grout the bottom of the bored pile 1 for reinforcement.

[0038] 11. Finally, remove all internal components and backfill the annular gap.

[0039] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method 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 in 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 arranged around the bored pile (1) and has an annular gap between it and the bored pile (1); A connecting assembly comprising a first connecting member (3) and a second connecting member (4), wherein the first connecting member (3) and the second connecting member (4) are both fixed to the side walls of the cast-in-place pile (1) and are distributed on the upper and lower sides of the center of the cast-in-place pile (1); A sliding assembly comprising a first horizontal slide rail (7) mounted on both sides of the guard wall (2), wherein the first connecting member (3) is located above the first horizontal slide rail (7); A push telescopic member (5) is located below the second connecting member (4), and an output end thereof abuts against the second connecting member (4). The push telescopic member (5) is used to drive the cast-in-place pile (1) to rise and fall. The rise and fall of the cast-in-place pile (1) can cause the first connecting member (3) to separate upward from the first horizontal slide rail (7), or to descend and be placed on the first horizontal slide rail (7). The first side-pushing telescopic member (6) is fixed on the first horizontal slide rail (7) and is used to drive the cast-in-place pile (1) to slide along the length direction of the first horizontal slide rail (7).

2. A directional sliding device for cast-in-place piles according to claim 1, characterized in that: Both sides of the cast-in-place pile (1) are provided with first horizontal slide rails (7), and the upper parts of the two first horizontal slide rails (7) are provided with first connecting members (3); A first side-pushing telescopic member (6) is fixed on each of the two first horizontal slide rails (7), and an output end of the first side-pushing telescopic member (6) is used to push the first connecting member (3) to slide.

3. The directional sliding device for cast-in-place piles according to claim 1, characterized in that: It also includes a steel embedded part (8), and the first connecting part (3) and the second connecting part (4) are respectively connected via the steel embedded part (8) and the cast-in-place pile (1); The steel embedded part (8) is in an arc shape that matches the cast-in-place pile (1), and the inner concave surface of the steel embedded part (8) is provided with a plurality of anchor bars (9) that can penetrate 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 further comprises a second horizontal sliding rail (10) mounted on both sides of the guard 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 push-telescopic member (5) on both sides, and a second connecting member (4) is provided above the two push-telescopic members (5); The lifting and lowering of the pushing telescopic member (5) can cause the second connecting member (4) to detach upward from the second horizontal slide rail (10), or to be lowered and placed on the second horizontal slide rail (10) and slidably connected to the second horizontal slide rail (10).

5. The directional sliding device for cast-in-place piles according to claim 4, characterized in that: It also includes a second side-pushing telescopic member (11), and the second side-pushing telescopic member (11) is fixed on each of the two second horizontal slide rails (10). The second side-pushing telescopic member (11) is used to push the second connecting member (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 anti-sway component (12), the positioning anti-sway component (12) includes a slide rail group (1201) erected on both sides of the guard wall (2), and the slide rail group (1201) is located between the first connecting member (3) and the second connecting member (4); 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) therein.

7. The directional sliding device for cast-in-place piles according to claim 6, characterized in that: A pulley block (1202) and an end baffle (1203) are also clamped between the third horizontal slide rail and the cast-in-place pile (1); 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) is provided with a groove, and the groove is arranged along the length direction of the end baffle (1203); The pulley assembly (1202) includes a plurality of pulleys, each of which includes an intermediate shaft and rotating wheels located at both ends of the intermediate shaft, and the axes of the pulleys are parallel to the axes of the cast-in-place piles (1); the plurality of pulleys are sequentially arranged along the length direction of the end baffle (1203), one side of the plurality of pulleys is inserted into the groove and abuts against the bottom of the groove, and the other side of the pulleys can travel on the side wall of the third horizontal slide rail; The third horizontal slide rail has a protruding piece (1204) on the side facing the pulley assembly (1202). The protruding piece (1204) is arranged along the length direction of the third horizontal slide rail, and the protruding piece (1204) can extend between the two rotating wheels in the pulley.

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

9. The sliding method of a directional sliding device for cast-in-place piles according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: Excavate the soil around the bored pile (1) to form an annular gap; S2: After the excavation is completed, the shaped retaining wall (2) is installed to support the outer side of the annular gap; S3: pouring bottom plate sealing concrete at the bottom of the annular gap, and installing the second connecting member (4) and the push telescopic member (5); S4: Controlling the pushing telescopic member (5) to push the second connecting member (4) upward, so that the bottom of the cast-in-place pile (1) is suspended in the air; S5: Then, the first connecting member (3) and the sliding assembly are installed. After the installation is completed, the pushing telescopic member (5) is controlled to retract so that the first connecting member (3) falls on the first horizontal slide rail (7); S6: At this time, the first side-pushing telescopic member (6) is installed, and the top-pushing telescopic member (5) is removed, and the cast-in-place pile (1) is pushed laterally by the first side-pushing telescopic member (6); S7: After sliding to the designated position, reinstall the push telescopic member (5) and make the push telescopic member press against the second connecting member (4); S8: removing the sliding assembly and the first side push telescopic member (6), and retracting the top push telescopic member (5) to allow the cast-in-place pile (1) to fall to the bottom bearing layer, and then grouting the bottom of the cast-in-place pile for reinforcement; S9: Finally, all internal components are removed and backfill is performed in the annular gap.

10. The sliding method of the cast-in-place pile directional sliding device according to claim 9, characterized in that: The step S2 further comprises the following steps: After the standardized retaining wall (2) is installed to support the outside of the annular gap, a positioning anti-sway component (12) needs to be installed; The positioning anti-sway component (12) includes a slide rail group (1201) mounted on both sides of the guard wall (2), and the slide rail group (1201) is located between the first connecting member (3) and the second connecting member (4); the slide rail group (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) therein.

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