Pile foundation pile casing protection device and construction method

Abstract

The invention provides a pile foundation casing protection device and a construction method.The protection device is arranged on an opening in the top of a pile foundation casing and comprises a connecting piece and a supporting sleeve, the connecting piece is provided with a pouring opening and can be used for concrete pouring, and the supporting sleeve is arranged on the periphery of the connecting piece and arranged in the radial direction of the opening; one end of the supporting sleeve is connected with the connecting piece, the other end of the supporting sleeve can stretch out and draw back in the radial direction of the opening and is connected with the outer wall of the pile foundation casing in a clamped mode, and a supporting frame is arranged between the supporting sleeves. The device has the beneficial effects that protection of the top opening of the pile foundation casing is achieved, safety guarantee is provided for constructors during operation, the protection effect is guaranteed, the warning effect can be achieved when the pile foundation is not completed under the condition that the sight is limited at night, the constructors can measure the position of the pile foundation and conduct pouring operation conveniently, disassembly and assembly are convenient, operation is convenient and fast, and the construction efficiency is improved. Therefore, the working efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of construction engineering, and in particular relates to a pile foundation casing protection device and a construction method. Background Art

[0002] With the development of construction technology, pile foundation has become an important part of infrastructure construction such as high-rise buildings, large factories, bridges, etc., and is widely used. In the process of pile foundation construction, the position of the pile foundation casing is first located and buried in the designated position, and then the impact drill is used to drill down the area surrounded by the pile foundation casing, and the hole depth is relatively deep. The pile foundation casing located at the opening of the pile foundation hole is usually in an open state, and construction workers can easily fall into the pile foundation hole, which poses a great safety hazard.

[0003] The prior art has the following problems:

[0004] 1. Use a simple formwork to cover the opening of the pile foundation casing. Since the simple formwork is easy to break, construction workers may fall into the pile foundation hole after stepping on it;

[0005] 2. Use a steel mesh made of straight steel bars for temporary protection. When pouring concrete, the steel mesh needs to be removed, wasting work time;

[0006] 3. For some protective devices, there is a large gap between the feet of construction workers when they stand on them, which makes it easy for them to fall, and it is inconvenient to measure the center point of the pile hole. Summary of the invention

[0007] In order to solve the above technical problems, the present invention provides a pile foundation casing protection device and a construction method, which overcome the shortcomings of the prior art.

[0008] The technical solution adopted by the present invention is: a pile foundation casing protection device, which is arranged on the opening at the top of the pile foundation casing, comprising:

[0009] Connectors, with pouring ports, can be used for concrete pouring;

[0010] A support sleeve is arranged around the connecting piece and radially along the opening. One end is connected to the connecting piece, and the other end can be extended and clamped with the outer wall of the pile foundation casing along the radial direction of the opening. A support frame is provided between the support sleeves.

[0011] Furthermore, the support frame is arc-shaped and is arranged along the radial direction of the opening.

[0012] Furthermore, the support sleeve includes a fixed tube and a movable tube. The fixed tube is arranged along the radial direction of the opening, one end of which is connected to the connecting piece, and the other end is sleeved with the movable tube. The movable tube can move along the fixed tube, and the end of the movable tube away from the connecting piece is clamped with the outer wall of the pile foundation casing.

[0013] Furthermore, a bent end is provided at one end of the movable tube away from the fixed tube, and the bent end can be clamped with the outer wall of the pile foundation casing.

[0014] Furthermore, one end of the fixed tube sleeved with the movable tube is provided with a positioning pin for positioning the movable tube.

[0015] Furthermore, a hanging piece is provided on the fixed pipe.

[0016] Furthermore, the pouring port is covered with an opening and closing cover, one side of the opening and closing cover is hinged to the connecting piece, and the other side of the opening and closing cover is engaged with the connecting piece.

[0017] Furthermore, a warning light is provided on the top of the opening and closing cover.

[0018] Furthermore, a cross mark is provided on the top of the warning light, and the cross mark is located at the center of the opening.

[0019] The present invention also provides a construction method using the above-mentioned pile foundation casing protection device, comprising the following steps:

[0020] Determine the diameter of the pile foundation casing and assemble the protective device;

[0021] Expanding and retracting the support sleeve according to the diameter of the pile foundation casing;

[0022] Clamping the support sleeve onto the pile foundation casing;

[0023] When pouring operation is performed, the pouring conduit is inserted into the pouring port.

[0024] The advantages and positive effects of the present invention are: it realizes the protection of the top opening of the pile foundation casing, provides safety protection for construction personnel during operation, ensures the protection effect, can realize a warning function when the pile foundation is not completed under the condition of limited vision at night, is beneficial for construction personnel to measure the position of the pile foundation and perform pouring operations, is easy to disassemble and assemble, is convenient to operate, can be recycled, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the installation of a pile foundation casing protection device according to an embodiment of the present invention.

[0026] Figure 2 It is a schematic structural diagram of a pile foundation casing protection device according to an embodiment of the present invention.

[0027] Figure 3 It is a structural diagram of an opening and closing cover of a pile foundation casing protection device according to an embodiment of the present invention.

[0028] In the figure:

[0029] 1. Connector 2. Support frame 3. Reinforcement ribs

[0030] 4. Fixed tube 5. Movable tube 6. Bending end

[0031] 7. Positioning pin 8. Lifting parts 9. Opening and closing cover

[0032] 10. Articulated shaft 11. Buckle 12. Circular boss

[0033] 13. Cross engraved line 14. Pile foundation casing 15. Warning light DETAILED DESCRIPTION

[0034] The embodiment of the present invention provides a pile foundation casing protection device and a construction method, and the embodiment of the present invention is described below with reference to the accompanying drawings.

[0035] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "set" and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0036] like Figure 1 and Figure 2As shown, a pile foundation casing protection device according to an embodiment of the present invention is arranged on the opening at the top of the pile foundation casing 14, covers the opening at the top of the pile foundation casing 14, and includes a connector 1, a support sleeve and a support frame 2. A pouring port is provided on the connector 1, which can be used for concrete pouring. In this embodiment, the connector 1 is arranged at the center of the opening, specifically in the shape of a circular ring. The inner diameter of the circular ring is adapted to the concrete pouring conduit, so that the concrete pouring conduit can be inserted into the circular ring and enter the pile foundation casing 14 for pouring. The support sleeve is arranged around the connector 1, arranged along the radial direction of the opening, one end is connected to the connector 1, and the other end can be retracted along the radial direction of the opening and clamped with the outer wall of the pile foundation casing 14. The specific number of the support sleeves is not limited. In this embodiment, four support sleeves are provided, which are evenly distributed around the circular ring-shaped connector 1, and are welded and fixed to the connector 1 to form a cross-shaped protection frame with a circular hole in the center. In order to avoid too large a gap between the support sleeves, a plurality of support frames 2 are fixedly connected to the support sleeves to make the entire device more solid. There is no limit on the specific number, and it is necessary to ensure that the construction workers can stand stably.

[0037] Preferably, the support frame 2 is arc-shaped and arranged along the radial direction of the opening. In this embodiment, a plurality of arc-shaped support frames 2 with different diameters are welded between the support sleeves and are evenly distributed along the radial direction of the opening. The diameter of the outermost arc-shaped support frame 2 is smaller than the diameter of the pile foundation casing 14, so that the entire support frame can be located inside the pile foundation casing 14. In order to enhance stability, a plurality of reinforcing ribs 3 arranged along the radial direction of the opening are welded on the support frame 2, and the plurality of reinforcing ribs 3 are evenly distributed along the circumference of the connector 1.

[0038] Specifically, the support sleeve includes a fixed tube 4 and a movable tube 5. The fixed tube 4 is arranged along the radial direction of the opening, one end of which is connected to the connecting piece 1, and the other end of which is sleeved with the movable tube 5. The movable tube 5 can move along the fixed tube 4, and the end of the movable tube 5 away from the connecting piece 1 is clamped with the outer wall of the pile foundation casing 14. In this embodiment, the fixed tube 4 and the movable tube 5 are both arranged as square hollow tubes. The fixed tube 4 is arranged along the radial direction of the opening, and one end is welded to the connecting piece 1. The movable tube 5 is sleeved on the end of the fixed tube 4 away from the connecting piece 1, and is loosely matched with the fixed tube 4, and can move along the fixed tube 4. By arranging the movable tube 5, the length of the support sleeve can be fine-tuned according to the diameter of the pile foundation casing 14, and is suitable for pile foundation casings 14 with different diameters.

[0039] Specifically, the end of the movable tube 5 away from the fixed tube 4 is provided with a bent end 6, which can be engaged with the outer wall of the pile foundation casing 14. In this embodiment, the end of the movable tube 5 away from the fixed tube 4 is welded with a 90° bent end 6, which can be abutted and engaged with the outer wall of the pile foundation casing 14.

[0040] Preferably, a positioning pin 7 is provided at one end of the fixed tube 4 on which the movable tube 5 is sleeved, for positioning the movable tube 5. In this embodiment, in order to prevent the entire device from sliding, a positioning pin 7 is provided at one end of the fixed tube 4 on which the movable tube 5 is sleeved, the positioning pin 7 is threadedly connected to the fixed tube 4, the positioning pin 7 passes through the top of the fixed tube 4 and abuts against the movable tube 5, and tightening the positioning pin 7 can fix the fixed tube 4 and the movable tube 5, so that the fixation of the entire device and the pile foundation casing 14 is not loose.

[0041] Preferably, a hanging piece 8 is provided on the fixed pipe 4, and the specific number and form are not limited. In this embodiment, in order to facilitate the installation and disassembly of the entire device, a hanging piece 8 is welded on each fixed pipe 4, and a steel wire rope or a hanging chain can be connected to the hanging piece 8 to hang the entire protective device.

[0042] Preferably, Figure 3 As shown, the pouring port is covered with an opening and closing cover 9, one side of the opening and closing cover 9 is hinged to the connecting member 1, and the other side is engaged with the connecting member 1. In this embodiment, the opening and closing cover 9 is circular, adapted to the annular connecting member 1, and covers the top of the connecting member 1. One side of the opening and closing cover 9 is rotatably connected to the connecting member 1 through a hinge shaft 10, and can be opened and closed 180°. The other side of the opening and closing cover 9 is provided with a buckle 11 to engage with the other side of the connecting member 1. When normal protection is performed, the opening and closing cover 9 is in a closed state. When it is necessary to pour concrete on the pile foundation, the opening and closing cover 9 can be opened without moving the entire protective device.

[0043] Preferably, a warning light 15 is provided on the top of the opening and closing cover 9. In the present embodiment, the warning light 15 is specifically a flashing light, which is fixed in the middle of the opening and closing cover 9. By setting the warning light 15, a warning effect can be played in the case of limited vision at night.

[0044] Preferably, a cross mark 13 is provided on the top of the warning light 15, and the cross mark 13 is located at the center of the opening. In this embodiment, the warning light 15 is set at the center of the opening and closing cover 9, and a transparent circular boss 12 is sleeved on the warning light 15, and a cross mark 13 is engraved at the top center of the circular boss 12, so that the cross mark 13 is exactly at the center of the pile foundation casing 14, that is, the center of the pile foundation. When the pile foundation position needs to be detected, the measuring prism or measuring instrument is compared with the center point of the cross mark 13 to measure the coordinate position of the center of the pile foundation hole.

[0045] A construction method using the pile foundation casing protection device as described above comprises the following steps:

[0046] Determine the opening diameter of the pile foundation casing 14 to be protected, determine the length of the fixed pipe 4 and the movable pipe 5 according to the opening diameter, weld the lifting piece 8 to the fixed pipe 4, weld the fixed pipe 4 to the connecting piece 1, form a preliminary cross protection frame with a circular hole in the center, weld the arc-shaped support frame 2 and the reinforcing rib 3 between the fixed pipes 4, form a circular protection support frame adapted to the pile foundation casing 14, the support frame can be placed inside the pile foundation casing 14, install the movable pipe 5 and the positioning pin 7. Install the warning light 15 on the top of the opening and closing cover 9, and install the circular boss 12 with a cross mark 13 on the outside of the warning light 15. Then install the opening and closing cover 9 on the connecting piece 1.

[0047] Use a steel wire rope or a lifting chain to connect the lifting parts 8, lift the entire protective device to the opening of the pile foundation casing 14 that needs to be protected, expand and contract the support sleeve according to the diameter of the pile foundation casing 14, adjust the relative position of the movable tube 5 and the fixed tube 4, and engage the support sleeve with the outer wall of the pile foundation casing 14, so that the entire support frame is located inside the pile foundation casing 14, and ensure that the length of each support sleeve is consistent, so that the cross mark is located at the center of the pile foundation casing 14. Tighten the positioning pin 7 to prevent the entire device from sliding, so that the entire protective device is fixed at the opening of the pile foundation casing 14.

[0048] When the construction personnel need to measure the position of the pile foundation, they can directly measure the coordinate position of the center of the pile foundation hole by directly comparing the measuring prism or measuring instrument with the center point of the cross mark 13. When the pile foundation needs to be poured with concrete, the opening and closing cover 9 can be opened, and the concrete pouring conduit can be directly inserted into the pile foundation casing 14 to carry out the pouring operation without moving the entire protective device.

[0049] After the construction of the entire pile foundation is completed, the opening and closing cover 9 is closed, the positioning pin 7 is loosened, and the lifting member 8 is connected using a wire rope or a lifting chain. The entire protective device is lifted off the pile foundation casing 14 and placed in the storage position. The movable tube 5 is retracted into the fixed tube 4 and the positioning pin 7 is tightened to fix it.

[0050] The advantages and positive effects of the present invention are:

[0051] 1. The top opening of the pile foundation casing is protected, providing safety for construction workers during operation. The protection effect is ensured by setting up multiple support frames;

[0052] 2. By setting a retractable support sleeve, it can be applied to pile foundation casings of different diameters. The support sleeve is connected with the pile foundation casing by snapping, which is convenient for disassembly and assembly, convenient for operation, and can be recycled;

[0053] 3. By setting up warning lights, it can serve as a warning, and can serve as a warning when the pile foundation is not completed and the vision is limited at night;

[0054] 4. By setting the cross-mark, it is convenient for construction workers to measure the position of the pile foundation;

[0055] 5. By setting the opening and closing cover, it can not only play a protective role, but also can carry out pouring operations without moving the protective device, reducing the back and forth movement of the protective device, saving construction time and improving work efficiency.

[0056] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A pile foundation casing protection device, arranged on the opening at the top of the pile foundation casing, characterized in that: include: Connectors, with pouring ports, can be used for concrete pouring; A support sleeve is arranged around the connecting piece and radially along the opening. One end is connected to the connecting piece, and the other end can be extended and clamped with the outer wall of the pile foundation casing along the radial direction of the opening. A support frame is provided between the support sleeves.

2. A pile foundation casing protection device according to claim 1, characterized in that: The support frame is arc-shaped and is arranged along the radial direction of the opening.

3. A pile foundation casing protection device according to claim 1 or 2, characterized in that: The supporting sleeve includes a fixed tube and a movable tube. The fixed tube is arranged along the radial direction of the opening, one end of which is connected to the connecting piece, and the other end is sleeved with the movable tube. The movable tube can move along the fixed tube, and the end of the movable tube away from the connecting piece is clamped with the outer wall of the pile foundation casing.

4. A pile foundation casing protection device according to claim 3, characterized in that: The movable tube has one end away from the fixed tube and is provided with a bent end, and the bent end can be clamped with the outer wall of the pile foundation casing.

5. A pile foundation casing protection device according to claim 3, characterized in that: One end of the fixed tube sleeved with the movable tube is provided with a positioning pin for positioning the movable tube.

6. A pile foundation casing protection device according to claim 3, characterized in that: The fixed pipe is provided with a hanging piece.

7. A pile foundation casing protection device according to any one of claims 1-2 and 4-6, characterized in that: The pouring port is covered with an opening and closing cover, one side of the opening and closing cover is hinged to the connecting piece, and the other side of the opening and closing cover is engaged with the connecting piece.

8. A pile foundation casing protection device according to claim 7, characterized in that: A warning light is arranged on the top of the opening and closing cover.

9. A pile foundation casing protection device according to claim 8, characterized in that: A cross mark is arranged on the top of the warning light, and the cross mark is located at the center of the opening.

10. A construction method using a pile foundation casing protection device as claimed in claim 1, characterized in that: The following steps are involved: Determine the diameter of the pile foundation casing and assemble the protective device; Expanding and retracting the support sleeve according to the diameter of the pile foundation casing; Clamping the support sleeve onto the pile foundation casing; When pouring operation is performed, the pouring conduit is inserted into the pouring port.

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