Casing device and construction method for preparing collimated piles

Abstract

The present invention discloses a casing device and a construction method for preparing a collimated pile. Among them, the casing device includes an inner casing and an outer casing, and the inner casing is provided with a pouring cavity; the inner casing is arranged inside the outer casing, and a calibration part is provided at the bottom of the outer casing. The calibration part is provided with a calibration hole corresponding to the inner casing, and the size of the calibration hole is adapted to the size of the inner casing, and is used to define the moving direction of the inner casing; the purpose is to calibrate the verticality of the inner casing, and further ensure the verticality of the collimated pile formed inside the inner casing.

Description

Technical Field

[0001] The invention belongs to the technical field of construction equipment, and in particular relates to a casing device and a construction method for preparing an alignment pile. Background Art

[0002] With the development of urbanization in my country, there are more and more ports, highway bridges and high-rise buildings in coastal areas. Such projects usually use large-diameter and ultra-deep bored piles. The geology of land reclamation areas mostly includes silt, sand and gravel, and stones. Most of them are sand and gravel, and the gaps between sand and gravel are large. In order to set up bored piles, a casing device needs to be set up. However, during the sinking process of the casing, it is easy to hit the sand and gravel in the hole, which will change the moving direction of the casing and affect the verticality of the casing. Finally, there are many errors in the verticality of the poured cement piles, which affects the stability of the building. Summary of the invention

[0003] The main purpose of the embodiments of the present invention is to provide a casing device and a construction method for preparing an alignment pile, aiming to calibrate the verticality of an inner casing, thereby ensuring the verticality of the alignment pile formed in the inner casing.

[0004] The technical solution of the present invention to solve the above technical problems is to provide a casing device, which includes an inner casing and an outer casing, and the inner casing is provided with a casting cavity; the inner casing is arranged in the outer casing, and the bottom of the outer casing is provided with a calibration part, and the calibration part is provided with a calibration hole corresponding to the inner casing, and the size of the calibration hole is adapted to the size of the inner casing, and is used to limit the moving direction of the inner casing.

[0005] In one embodiment of the present invention, the calibration portion is truncated cone-shaped, and the lower bottom surface of the calibration portion is connected to the bottom of the outer casing; the calibration portion is provided with a columnar calibration hole corresponding to the inner casing.

[0006] In one embodiment of the present invention, a plurality of telescopic top rods are provided between the outer casing and the inner casing, the telescopic top rods include a fixed portion and a telescopic portion, the fixed portion is fixed to the inner wall of the outer casing, and the telescopic portion is telescopically connected to the fixed portion for supporting the inner casing.

[0007] In one embodiment of the present invention, a pressure sensor and a controller are provided on the telescopic top rod, the pressure sensor is provided at the end of the telescopic top rod away from the outer casing, and the controller is provided inside the telescopic top rod; the pressure sensor is electrically connected to the controller, and the controller is electrically connected to the telescopic top rod.

[0008] In one embodiment of the present invention, a slide rail is provided at the end of the telescopic top rod away from the outer casing, and a slider is provided along the length direction of the inner casing corresponding to the slide rail, and the slide rail is cooperatively connected with the slider.

[0009] In an embodiment of the present invention, a plurality of positioning components are arranged at intervals along the circumferential direction of the outer casing; each positioning component includes a positioning rod, an adjusting member, and a positioning handle. The outer casing is provided with through holes corresponding to the positioning rods, the adjusting member is installed in the through holes, and the positioning rod is movably arranged on the adjusting member; the positioning handle is arranged at one end of the positioning rod away from the adjusting member.

[0010] In an embodiment of the present invention, the length of the inner casing is greater than the length of the outer casing.

[0011] In an embodiment of the present invention, a spirit level is provided on the outer casing.

[0012] To achieve the above object, the present invention further provides a construction method for preparing a collimation pile, which is prepared by using the casing device as described above; the method includes the following steps:

[0013] Drill a pile hole;

[0014] Install the casing device in the pile hole;

[0015] Pour the inner casing of the casing device to obtain a collimation pile.

[0016] In an embodiment of the present invention, the step of installing the casing device in the pile hole includes:

[0017] Determine the center point of the pile hole, and install the outer casing into the pile hole with the center point of the pile hole as the center, and determine the verticality of the outer casing;

[0018] With the center point of the outer casing as the center, sink the outer casing along the calibrated inner arm of the calibration part on the outer peripheral surface of the outer casing.

[0019] The embodiment of the present invention provides a casing device and a construction method for preparing a collimation pile. The inner casing is arranged inside the outer casing, and the outer wall of the inner casing is spaced from the inner wall of the outer casing, which is convenient for adjusting the position of the inner casing in the outer casing; a calibration part is arranged at the bottom of the outer casing, and the calibration part is used to limit the moving direction and position of the inner casing in the pile hole. Through cooperation with the outer casing, the center point during the sinking process of the inner casing is calibrated at the center position of the outer casing, ensuring the verticality of the inner casing, and further ensuring the verticality of the collimation pile formed inside the inner casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the casing device of the present invention;

[0021] Figure 2 It is a schematic flow diagram of one of the embodiments of the construction method for preparing a collimation pile of the present invention;

[0022] Figure 3It is a schematic flow chart of one embodiment of the construction method for preparing the collimated pile according to the present invention.

[0023] Explanation of the reference numerals in the drawings:

[0024] Label Name Label Name 100 Casing device 23 Guiding part 10 Inner casing 24 Telescopic ejector rod 11 Pouring cavity 25 Positioning component 20 Outer casing 251 Positioning rod 21 Calibration part 252 Positioning handle 22 Calibration hole Specific embodiments

[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] As Figure 1 shown, the present invention provides a casing device, aiming to calibrate the verticality of the inner casing, and further ensure the verticality of the collimated pile formed in the inner casing.

[0030] Referring to Figure 1 shown, the casing device 100 includes an inner casing 10 and an outer casing 20. The inner casing 10 is provided with a pouring cavity 11; the inner casing 10 is arranged inside the outer casing 20, and a calibration portion 21 is provided at the bottom of the outer casing 20. The calibration portion 21 is provided with a calibration hole 22 corresponding to the inner casing 10. The size of the calibration hole 22 is adapted to the size of the inner casing 10 and is used to limit the moving direction of the inner casing 10.

[0031] Understandably, the inner casing 10 is disposed inside the outer casing 20, and the outer wall of the inner casing 10 is spaced from the inner wall of the outer casing 20, which facilitates adjusting the position of the inner casing 10 inside the outer casing 20; a calibration portion 21 is provided at the bottom of the outer casing 20, and the calibration portion 21 is used to define the direction and position of the movement of the inner casing 10 in the pile hole. By cooperating with the outer casing 20, the center point during the sinking process of the inner casing 10 is calibrated at the center position of the outer casing 20, ensuring the verticality of the inner casing 10, and further ensuring the verticality of the alignment pile formed inside the inner casing 10.

[0032] During the actual application process, during the sinking process of the inner casing 10, some deviations may occur. The size of the calibration hole 22 of the calibration portion 21 is adapted to the size of the inner casing 10. When the inner casing 10 deviates, it is easy to drive the calibration portion 21 to deviate in the same way. The positional relationship between the calibration portion 21 and the outer casing 20 is fixed (the outer casing 20 and the calibration portion 21 can be integrally provided), which will affect the verticality of the outer casing 20. By providing a level or other device on the outer casing 20 to detect the deviation direction of the outer casing 20, and then detecting the deviation direction of the inner casing 10, the deviation of the sinking direction of the inner casing 10 can be adjusted by moving the relative position of the outer casing 20 and the inner casing 10 or moving the position of the outer casing 20. When the inner casing 10 sinks to the designated position, the verticality of the inner casing 10 can be measured by testing the angle of the calibration portion 21 and / or the outer casing 20. When the angle between the inner casing 10 and the horizontal plane is 90°, pouring is carried out into the pouring cavity 11 of the inner casing 10, and the alignment pile is formed in the pouring cavity 11. After the alignment pile is formed, the casing device 100 can be removed.

[0033] In an embodiment of the present invention, the calibration portion 21 is frustum-shaped, and the lower bottom surface of the calibration portion 21 is connected to the bottom of the outer casing 20; the calibration portion 21 is provided with a columnar calibration hole 22 corresponding to the inner casing 10.

[0034] Understandably, when drilling a pile hole, it is necessary to drill a pile hole that is adapted to the outer casing 20 and the inner casing 10 respectively. Since the diameters of the outer casing 20 and the inner casing 10 are different, there is a step at the junction of the two pile holes. In order to make the outer casing 20 more stably fixed in the pile hole, a frustum-shaped calibration part 21 is provided at the bottom of the outer casing 20, so that the calibration part 21 can partially penetrate into the smaller pile hole and abut against the pile hole wall, making the calibration part 21 more stably fixed in the pile hole, facilitating the stable calibration of the sinking of the inner casing 10. When the inner casing 10 sinks into the outer casing 20, it sinks into the calibration hole 22 along a specified route. In order to facilitate the stable sinking of the inner casing 10 into the calibration hole 22, a guiding part 23 is provided on the upper side of the calibration part 21, and the inner casing 10 is guided into the calibration hole 22 that is adapted to the size of the inner casing 10 through the guiding part 23; Optionally, the material of the calibration part 21 is steel with relatively high rigidity. During the sinking process of the inner casing 10, due to deviation from the center line, a force will be generated on the calibration part 21 to prevent the calibration part 21 from deforming.

[0035] In an embodiment of the present invention, as Figure 1 shown, a plurality of telescopic top rods 24 are provided between the outer casing 20 and the inner casing 10. The telescopic top rod 24 includes a fixed part and a telescopic part. The fixed part is fixed on the inner wall of the outer casing 20, and the telescopic part is telescopically connected to the fixed part for supporting the inner casing 10.

[0036] Understandably, the inner diameter of the outer casing 20 is larger than the outer diameter of the inner casing 10, and the outer peripheral surface of the inner casing 10 is spaced from the inner peripheral surface of the outer casing 20. When the inner casing 10 sinks into the outer casing 20, in order to make the inner casing 10 sink in a preset direction, a plurality of telescopic top rods 24 are provided between the outer casing 20 and the inner casing 10. The plurality of telescopic top rods 24 are evenly arranged on the inner peripheral surface of the outer casing 20. The plurality of telescopic top rods 24 form a moving channel, and the inner casing 10 can sink along this moving channel and sink into the calibration hole 22 of the calibration part 21.

[0037] In the technical solution of this embodiment, in order to prevent the inner casing 10 from deviating during the sinking process, the telescopic top rod 24 includes a fixed part and a telescopic part. The fixed part is used to be fixed on the inner wall of the outer casing 20, and the telescopic part is telescopically connected to the fixed part. When the inner casing 10 sinks into the outer casing 20, the telescopic part abuts against the outer wall of the inner casing 10. When the inner casing 10 deviates in a certain direction during the sinking process, by controlling the telescopic part corresponding to this direction to abut against the outer wall of the inner casing 10, prevent the inner casing 10 from continuing to deviate or push the inner casing 10 back to the original moving direction; a cylinder is provided on the fixed part, and the cylinder is automatically controlled by a controller to drive the telescopic part to extend or retract.

[0038] In an embodiment of the present invention, a pressure sensor and a controller are provided on the telescopic push rod 24. The pressure sensor is provided at the end of the telescopic push rod 24 away from the outer protection cylinder 20, and the controller is provided inside the telescopic push rod; the pressure sensor is electrically connected to the controller, and the controller is electrically connected to the telescopic push rod 24.

[0039] Understandably, by providing a pressure sensor at the end of the telescopic push rod 24 away from the outer protection cylinder 20, it can be clearly known in which direction the inner protection cylinder 10 deviates during the sinking process; the pressure sensor transmits the abnormal force condition to the controller, and the controller controls the extension or retraction of the telescopic push rod 24. For example, the pressure sensor on the left telescopic push rod 24 receives an abnormal pressure of 100 N / m 2 , the pressure sensor transmits this pressure value to the controller, and the controller controls the left telescopic push rod 24 to eject and controls the right telescopic push rod 24 to retract, so that the left telescopic push rod 24 can push the inner protection cylinder 10 back to its original position, thereby ensuring that the sinking position of the inner protection cylinder 10 does not deviate.

[0040] In an embodiment of the present invention, a slide rail is provided at the end of the telescopic push rod 24 away from the outer protection cylinder 20, and the inner protection cylinder 10 is provided with a slider along the length direction of the inner protection cylinder 10 corresponding to the slide rail, and the slide rail is connected to the slider in a matching manner.

[0041] Understandably, a protruding slider is provided on the inner protection cylinder 10 for mating connection with the slide rail on the telescopic push rod 24, and the protruding slide rail will not increase the sinking resistance of the inner protection cylinder 10; by providing a slide rail on the telescopic push rod 24, the inner protection cylinder 10 can sink along a specified route during the sinking process, controlling the inner protection cylinder 10 not to deviate during the sinking process. The telescopic push rods 24 provided along the inner wall of the outer protection cylinder 20 are arranged at intervals along the length direction of the outer protection cylinder 20. A row of telescopic push rods 24 arranged along the length direction of the outer protection cylinder 20 can form a slide rail, so that it is convenient for the inner protection cylinder 10 to sink in the outer protection cylinder 20.

[0042] In an embodiment of the present invention, as Figure 1 shown, a plurality of positioning components 25 are arranged at intervals along the circumferential direction of the outer protection cylinder 20; the positioning component 25 includes a positioning rod 251, an adjusting member and a positioning handle 252. The outer protection cylinder 20 is provided with a through hole corresponding to the positioning rod 251, the adjusting member is installed in the through hole, and the positioning rod 251 is movably arranged on the adjusting member; the positioning handle 252 is arranged at one end of the positioning rod 251 away from the adjusting member.

[0043] Understandably, in order to stably set the outer protection cylinder 20 in the pile hole, a plurality of positioning components 25 are arranged at intervals along the outer circumference of the outer protection cylinder 20, and the outer protection cylinder 20 is stably fixed in the pile hole through the positioning components 25.

[0044] Specifically, the positioning assembly 25 includes a positioning rod 251, an adjusting member, and a positioning handle 252. The positioning rod 251 is used to support between the pile hole wall and the outer casing 20. The adjusting member is used to adjust the position of the positioning rod 251 relative to the outer casing 20 so that the positioning rod 251 can stably support between the pile hole wall and the outer casing 20. The positioning rod 251 is used to support on the pile hole wall. By setting the surface area of the positioning handle 252, the contact area between the positioning handle 252 and the pile hole wall can be controlled, so that the outer casing 20 can be stably fixed in the pile hole. When the pile hole diameter is small, the positioning assembly 25 may not be provided.

[0045] In an embodiment of the present invention, the length of the inner casing 10 is greater than the length of the outer casing 20.

[0046] It can be understood that the inner casing 10 is used for pouring the alignment pile, so the length of the inner casing 10 needs to be set long, while the outer casing 20 is used to stabilize the sinking angle of the inner casing 10, thereby preventing the verticality of the inner casing 10 from shifting, and further preventing the position of the alignment pile from shifting.

[0047] In an embodiment of the present invention, a level is provided on the outer casing 20.

[0048] It can be understood that in order to determine the verticality of the outer casing 20, a level is provided on the outer casing 20 to test whether the outer casing 20 is installed in place by the level, thereby preventing the inner casing 10 from sinking in the wrong direction. During the sinking process of the inner casing 10, it can be detected whether the sinking direction of the inner casing 10 is shifted by observing the level (since the size of the calibration hole 22 is adapted to the size of the inner casing 10, when the inner casing 10 shifts, the outer casing 20 will also shift together).

[0049] To achieve the above object, as Figure 2 shown, the present invention also proposes a construction method for preparing an alignment pile, which is prepared by using the casing device as described above; including the following steps:

[0050] S10: Drilling a pile hole;

[0051] It can be understood that the first pile hole is drilled by a drilling rig according to the outer diameter of the outer casing 20, and the second pile hole is continuously drilled at the position of the first pile hole according to the outer diameter of the inner casing 10. The first pile hole is used to set the outer casing 20, and the first pile hole is used for the inner casing 10 to sink.

[0052] S20: Installing the casing device in the pile hole;

[0053] Understandably, the pile hole includes a first pile hole and a second pile hole. First, an outer casing 20 is installed in the first pile hole, and the outer casing 20 is stably fixed in the first pile hole through a positioning component 25. The calibration part 21 of the outer casing 20 abuts against the hole wall where the first pile hole intersects with the second pile hole, so that the calibration part 21 can be stably fixed at a specified position, which is beneficial to the sinking of the inner casing 10. The inner casing 10 sinks into the second pile hole through the positioning of the outer casing 20, and the installation of the casing device 100 is completed.

[0054] S30: Pour the inner casing of the casing device to obtain a straight pile.

[0055] Understandably, after the inner casing 10 is installed, cement is poured into the pouring cavity 11 of the inner casing 10. After the cement is formed, a straight pile is formed. After the straight pile is formed, the outer casing 20 is removed, and after the outer casing 20 is removed, the inner casing 10 is removed.

[0056] In the technical solution of this embodiment, as Figure 3 shown, the steps of installing the casing device in the pile hole include:

[0057] S21: Determine the center point of the pile hole, and install the outer casing into the pile hole with the center point of the pile hole as the center, and determine the verticality of the outer casing;

[0058] Understandably, first determine the center positions of the first pile hole and the second pile hole, install the outer casing 20 in the first pile hole with this center position as the center. During the process of the outer casing 20 sinking into the first pile hole, instruments such as a theodolite are used to detect the verticality of the outer casing 20 in real time. The calibration part 21 of the outer casing 20 abuts against the inner wall of the first pile hole, and part of the calibration part 21 extends into the first pile hole.

[0059] S22: With the center point of the outer casing as the center, the outer peripheral surface of the outer casing sinks along the calibration inner arm of the calibration part.

[0060] Understandably, after the outer casing 20 is fixed in the first pile hole, the slider of the inner casing 10 is slid into the slide rail provided on the outer casing 20 along the length direction of the outer casing 20, and slides into the calibration hole 22 of the calibration part 21 along the slide rail. Through the limitation of the calibration hole 22, and instruments such as a theodolite are used to detect the verticality of the inner casing 10 in real time. During the process of the inner casing 10 sinking, if the inner casing 10 deviates, pressure can be applied to the inner casing 10 by controlling the telescopic ejector rod 24 to push the inner casing 10 back to the original position. After determining the verticality of the inner casing 10, the inner casing 10 is fixed.

[0061] As described above, it is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A casing device, characterized in that, The casing device includes: An inner casing provided with a pouring cavity; An outer casing, the inner casing is arranged inside the outer casing, a calibration part is provided at the bottom of the outer casing, the calibration part is provided with a calibration hole corresponding to the inner casing, and the size of the calibration hole is adapted to the size of the inner casing for defining the moving direction of the inner casing; A plurality of telescopic ejector rods are arranged between the outer casing and the inner casing, the telescopic ejector rod includes a fixed part and a telescopic part, the fixed part is fixed on the inner wall of the outer casing, and the telescopic part is telescopically connected to the fixed part for supporting the inner casing; A pressure sensor and a controller are arranged on the telescopic ejector rod, the pressure sensor is arranged at the end of the telescopic ejector rod away from the outer casing, and the controller is arranged inside the telescopic ejector rod; the pressure sensor is electrically connected to the controller, and the controller is electrically connected to the telescopic ejector rod; A slide rail is arranged at the end of the telescopic ejector rod away from the outer casing, and a slide block is arranged on the inner casing corresponding to the slide rail along the length direction of the inner casing, and the slide rail is in mating connection with the slide block.

2. The casing device according to claim 1, characterized in that, The calibration part is frustum-shaped, and the lower bottom surface of the calibration part is connected to the bottom of the outer casing; the calibration part is provided with the columnar calibration hole corresponding to the inner casing.

3. The casing device according to claim 1, characterized in that, A plurality of positioning components are arranged at intervals along the circumferential direction of the outer casing; the positioning component includes a positioning rod, an adjusting member and a positioning handle, the outer casing is provided with a through hole corresponding to the positioning rod, the adjusting member is installed in the through hole, and the positioning rod is movably arranged on the adjusting member; the positioning handle is arranged at one end of the positioning rod away from the adjusting member.

4. The casing device according to any one of claims 1 to 3, characterized in that The length of the inner casing is greater than the length of the outer casing.

5. The casing device according to any one of claims 1 to 3, characterized in that A level gauge is arranged on the outer casing.

6. A construction method for preparing a collimated pile, characterized in that, Prepared by using the casing device according to any one of claims 1 to 5; including the following steps: Drill a pile hole, drill a first pile hole by a drilling rig according to the outer diameter of the outer casing, and continue to drill a second pile hole at the position of the first pile hole according to the outer diameter of the inner casing; Determine the central positions of the first pile hole and the second pile hole, install the outer casing in the first pile hole with the central position as the center, determine the verticality of the outer casing, the calibration part of the outer casing abuts against the hole wall where the first pile hole and the second pile hole intersect, and part of the calibration part extends into the first pile hole; After fixing the outer casing in the first pile hole, slide the slide block of the inner casing along the length direction of the outer casing into the slide rail arranged on the outer casing, and slide into the calibration hole of the calibration part along the slide rail and sink the inner casing into the second pile hole; Detect the verticality of the inner casing in real time. During the sinking process of the inner casing, if the inner casing deflects, control the telescopic ejector rod to apply pressure to the inner casing to push the inner casing back to the original position. After determining the verticality of the inner casing, fix the inner casing; Pour the inner casing of the casing device to obtain a straight pile.

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