Vertical anchor cable pre-sinking sleeve pile cap

Abstract

The utility model provides a vertical anchor cable pre-sinking casing pipe pile cap which comprises a cap body and a clamping plate, the cap body can be connected outside a casing pipe in a sleeved mode, the cap body is provided with at least one limiting groove to be connected with a toggle pin arranged outside the casing pipe in a clamping mode, and the cap body is connected with the clamping plate to be lifted and pre-sunk. A limiting pin is additionally arranged on the cap body to limit the moving range of the stud in the limiting groove and prevent the cap body from being separated from the sleeve. During operation, the toggle pin penetrates into the limiting groove formed in the cap body and is limited by the limiting pin, and the pile cap and the casing pipe are rapidly connected; the clamping plate is used for lifting and controlling the sleeve to keep a vertical state to a pre-sinking point for operation, so that the problems of inclination of the sleeve and unstable occlusion of the vibratory hammer are solved; vibration force of operation acts on the sleeve instead of the stud through the device, stress is uniform, and deformation and cracking of the stud or the sleeve are prevented. The pre-sinking device has the advantages of being convenient and fast to operate, simple in structure, capable of guaranteeing pre-sinking precision and safe and stable in construction process.

Description

Technical Field

[0001] The utility model belongs to the field of base construction, in particular to a vertical anchor cable pre-sunk casing pile cap. Background Art

[0002] In construction projects, anchor cables are generally used to improve the stability and bearing capacity of foundations or retaining structures. By applying prestress to anchor cables deep underground, displacement of the structure is avoided, and the economic efficiency is also high. Especially for large-scale underground structures without ground projects in water-rich areas, the risk of floating is relatively high. If cast-in-place pile foundations are used, the economic efficiency is poor. In this case, anti-floating anchor cables are often inserted into the rock to resist the buoyancy and ensure the stability of the entire underground structure.

[0003] In the existing technology, in order to avoid the influence of groundwater and the occurrence of hole collapse, the casing can be pre-sunk before anchor drilling, and the casing can be sunk into the ground using a vibratory hammer to provide a stable environment for subsequent drilling construction. However, the casing has a small diameter and a thin pipe wall. The vibratory hammer has no holding point during pre-sinking. Generally, a wing plate is welded at the end of the pipe wall as the vibratory hammer bite point, and the casing is driven to sink through the downward shear force. Since the vibratory hammer and the casing are not concentric, the sinking process is prone to tilting, and the connection between the wing plate and the casing is prone to cracking due to the large shear force, which has a certain impact on the pre-sinking accuracy and on-site safety. There are technical problems such as unstable pre-sinking process, poor safety, and low pre-sinking accuracy. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a vertical anchor cable pre-sunk casing pile cap, which is particularly suitable for use in underground vertical anchor cable construction.

[0005] The technical solution adopted by the utility model is: a vertical anchor cable pre-sunken casing pile cap, comprising a cap body and a clamping plate, the cap body can be sleeved outside the casing, the cap body is provided with at least one limiting groove to clamp the bolts arranged outside the casing, and the surface of the cap body is connected with the clamping plate for lifting and pre-sinking.

[0006] Preferably, one end of each limiting groove is connected to the bottom edge of the cap body to allow the bolt to slide through.

[0007] Preferably, the limiting groove includes a longitudinal groove, a transverse sliding groove and a locking groove. One end of the longitudinal groove is connected to the bottom edge of the cap body, and the other end is connected to the transverse sliding groove in an L shape. The transverse sliding groove is also vertically connected to the locking groove in a T shape.

[0008] Preferably, the cap body is provided with a limiting pin to limit the movement range of the bolt in the limiting groove and prevent the cap body and the sleeve from being separated.

[0009] Preferably, the limiting pin comprises a limiting member, and the limiting member is rotatably connected to the cap body to switch the opening and closing state of the limiting pin.

[0010] Preferably, a groove matching the shape of the top of the sleeve is provided at the bottom of the cap body for sleeve engagement.

[0011] Preferably, the clamping plate is connected to at least one reinforcing plate, and the reinforcing plate is further connected to the cap body.

[0012] Preferably, the splint is perpendicular to the top surface of the cap body, and the center line of the splint coincides with the center line of the cap body.

[0013] Preferably, there are two limiting grooves, which are symmetrically arranged on both sides of the cap body.

[0014] The advantages and positive effects of the utility model are as follows: due to the adoption of the above technical scheme, the connection between the casing and the pile cap is more convenient and quick; the design of the splint effectively solves the unstable bite between the casing and the vibrating hammer, so that the horizontally placed casing can be directly lifted, and the casing and the pile cap work together during construction and maintain a vertical state for pre-sinking, which effectively solves the problem of casing inclination and ensures construction accuracy; when the casing sinks, the vibration force acts on the casing through the pile cap instead of the bolt, and the force is more uniform, which can prevent the bolt or casing from deforming and cracking; it has the advantages of simple structure, easy operation, ensuring construction accuracy and safe and stable pre-sinking process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of an embodiment structure of the utility model;

[0016] Figure 2 It is a schematic diagram of another embodiment structure of the utility model;

[0017] Figure 3 Is Figure 2 A schematic diagram of the enlarged structure of the leading limit slot;

[0018] Figure 4 A side view of another embodiment of the utility model;

[0019] Figure 5 A cross-sectional view of another embodiment of the present invention.

[0020] In the figure:

[0021] 1. Casing 2. Cap 3. Limit pin

[0022] 4. Clamp 5. Bolt 6. Reinforcement plate

[0023] 7. Limiting groove 71, longitudinal groove 72, transverse sliding groove

[0024] 73. Card slot DETAILED DESCRIPTION

[0025] The following is a description of the embodiments of the present invention in conjunction with the accompanying drawings. The described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments.

[0026] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar units or units with the same or similar functions.

[0027] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it should be understood that the terms "setting" and "connection" should be understood in a broad sense, which can be direct connection, setting, or indirect connection, setting, and the present invention does not limit this.

[0028] In the description of the present invention, it is necessary to understand that the terms "top", "bottom", "lateral", "longitudinal", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the structure or unit 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.

[0029] Embodiment 1, as Figure 1 As shown, the structural schematic diagram of the vertical anchor cable pre-sunk casing pile cap of the utility model includes a cap body 2 and a splint 4. The cap body 2 can be sleeved on the outside of the casing 1. The cap body 2 is provided with at least one limit groove 7 to clamp the stud 5 set outside the casing 1 to achieve the connection between the cap body 2 and the casing 1, so that when the casing 1 is sunk, the vibration force originally acting on the casing 1 or the stud 5 outside the casing 1 is converted to act on the casing 1 through the pile cap, and the force is more uniform while preventing the stud 5 or the casing 1 from deforming and cracking, thereby improving the construction stability. The cap body 2 is connected to the splint 4 for lifting and pre-sinking. The splint 4 can be processed into a rectangle, a circle, a regular polygon, etc. During operation, a vibrating hammer can be used to engage with the splint 4, which effectively solves the problem of unstable engagement between the vibrating hammer and the splint 4, and the horizontally placed casing 1 can be directly lifted by the splint 4, thereby improving the construction accuracy.

[0030] In a specific embodiment, the cap body 2 can be optimized to increase the setting of the limit pin 3 to limit the movement range of the bolt 5 in the limit groove 7 to prevent the bolt 5 from slipping out of the limit groove 7 and causing the cap body 2 to be separated from the sleeve 1.

[0031] The limiting groove 7 can be designed in a variety of shapes. In the present embodiment, it can be designed as a straight line. One end of each limiting groove 7 can be optimized to be connected to the bottom edge of the cap body 2 to slide the bolt 5 through. The corners of the edge of the limiting groove 7 can be optimized to be curved to prevent construction workers from being scratched during operation, which can greatly improve the safety of the device.

[0032] Embodiment 2, as Figures 2 to 5 As shown, the limiting groove 7 can be optimally designed to include a longitudinal groove 71, a transverse sliding groove 72 and a locking groove 73. One end of the longitudinal groove 71 is connected to the bottom edge of the cap body 2, and the other end is connected to the transverse sliding groove 72 in an L shape. The transverse sliding groove 72 is also vertically connected to the locking groove 73 in a T shape. This design allows the bolt 5 to slide into the locking groove 73 from the longitudinal groove 71 and the transverse sliding groove 72 in sequence, and the limiting pin 3 is used to prevent the bolt from sliding out of the locking groove 73 due to the operation vibration. When the bolt is vibrated up and down, it acts in the locking groove 73. Compared with the embodiment 1, when the bolt 5 acts on the limiting pin 3 up and down during vibration, the shape design of the limiting groove 7 can reduce the impact on the limiting pin 3, improve the stability of the device, and increase the service life of the limiting pin 3.

[0033] The limit pin 3 can be designed in different forms, which is not limited by the present invention. It can be designed as a pull-out type latch, or it can be optimized to be a rotating type, including a limit piece, which is rotatably connected to the cap body 2 to switch the open and closed state of the limit pin 3. This design has a simple structure, is easy to produce and process, and is conducive to popularization.

[0034] The inner diameter of the groove at the bottom of the cap body 2 is larger than the outer diameter of the casing 1 for easy installation. The bottom of the cap body 2 can also be optimized to open a groove that matches the shape of the top of the casing 1 for sleeve connection, reducing the shaking caused by the mismatch of the device during operation that affects the pre-sinking accuracy. The vertical anchor cable pre-sinking casing pile cap can be prefabricated in batches according to the size and shape of the casing 1 in advance, making it convenient for operators to install, shortening the construction period, and improving the matching degree between the pile cap and the casing 1, thereby improving the pre-sinking accuracy.

[0035] The clamping plate 4 is connected to at least one reinforcing plate 6, and each reinforcing plate 6 is also connected to the cap body 2. The design of the reinforcing plate 6 improves the connection strength between the clamping plate 4 and the cap body 2, improves the structural strength of the device, and reduces the deformation of the clamping plate 4 due to long-term operation and the connection with the cap body 2. In this embodiment, there are four reinforcing plates 6, which are symmetrically distributed on both sides of the clamping plate 4.

[0036] The splint 4 can be designed to be set on the top of the cap body 2, the splint 4 is perpendicular to the top surface of the cap body 2, and the center line of the splint 4 coincides with the center line of the cap body 2. This design can lift the casing 1 through the splint 4 during pre-sinking and keep the casing 1 vertical, effectively solving the inclination of the casing 1 and improving the pre-sinking accuracy.

[0037] The number of the limiting grooves 7 can be one or more. In this embodiment, there are two limiting grooves 7 symmetrically arranged on both sides of the cap body 2 .

[0038] The working process of this embodiment:

[0039] Before construction, first open the limit pin 3, insert the bolt 5 into the limit groove 7, reset the limit pin 3 to prevent the bolt 5 from sliding out of the limit groove 7 and connect the cap body 2 and the sleeve 1;

[0040] Clamp the clamping plate 4 with a vibrating hammer, and drive the pile cap to control the casing 1 to the pre-sinking point through the clamping plate 4, so that the casing 1 is lowered until the end of the casing 1 coincides with the pre-sinking point, and the vibrating hammer is used to apply vibration force to insert the casing 1 into the ground. The clamping plate 4 is optimized to be vertically connected to the top surface of the cap body 2 and the center lines of the two coincide, so that the casing 1 is always kept in a vertical state during the lifting and pre-sinking operation, thereby improving the pre-sinking accuracy;

[0041] After the sleeve 1 is inserted into the specified depth, the stop pin 3 is opened, and the cap body 2 is separated from the bolt 5 along the stop groove 7 for disassembly;

[0042] Finally, a hole forming operation is performed in the casing 1, and an anchor cable is lowered and a filling material is poured in. After the operation, the device of the utility model can be recovered intact, which is convenient for subsequent reuse and reduces the construction cost.

[0043] The above is a detailed description of the embodiments of the utility model, but the contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A vertical anchor cable pre-sunk casing pile cap, comprising a cap body and a clamping plate, characterized in that: The cap body can be sleeved outside the casing, the cap body is provided with at least one limiting groove to clamp the bolt arranged outside the casing, and the cap body is connected with the clamping plate for lifting and pre-sinking; The cap body is provided with a limiting pin to limit the moving range of the bolt in the limiting groove and prevent the cap body and the sleeve from being separated.

2. The vertical anchor cable pre-sunken casing pile cap according to claim 1, characterized in that: One end of each of the limiting grooves is connected to the bottom edge of the cap body so as to slide and penetrate the bolt.

3. The vertical anchor cable pre-sunken casing pile cap according to claim 2, characterized in that: The limiting groove includes a longitudinal groove, a transverse sliding groove and a locking groove. One end of the longitudinal groove is connected to the bottom edge of the cap body, and the other end is connected to the transverse sliding groove in an L shape. The transverse sliding groove is also vertically connected to the locking groove in a T shape.

4. The vertical anchor cable pre-sunken casing pile cap according to claim 1, characterized in that: The limiting pin comprises a limiting member, and the limiting member is rotatably connected to the cap body to switch the opening and closing state of the limiting pin.

5. The vertical anchor cable pre-sunken casing pile cap according to claim 1, characterized in that: The bottom of the cap body is provided with a groove matching the shape of the top of the sleeve for sleeve engagement.

6. The vertical anchor cable pre-sunken casing pile cap according to claim 1, characterized in that: The clamping plate is connected to at least one reinforcing plate, and the reinforcing plate is also connected to the cap body.

7. The vertical anchor cable pre-sunken casing pile cap according to claim 1, characterized in that: The clamping plate is perpendicular to the top surface of the cap body, and the center line of the clamping plate coincides with the center line of the cap body.

8. The vertical anchor cable pre-sunk casing pile cap according to claim 1, characterized in that: The number of the limiting grooves is two and they are symmetrically arranged on both sides of the cap body.

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