A concrete auxiliary pouring assembly for a rotary drilling cast-in-place pile

Abstract

This utility model relates to a concrete auxiliary grouting component for rotary drilled cast-in-place piles, comprising: a guide pipe frame, into which a cast-in-place pile guide pipe is inserted into a steel retaining wall, having two parallel I-beam main beams spaced apart and spanning the steel retaining wall; an arc-shaped horizontal plate, placed under the I-beam main beams of the guide pipe frame and positioned between the steel retaining wall and the I-beam main beams, parallel to the top surface of the steel retaining wall, with through holes at both ends extending beyond the lower flanges of the I-beam main beams; arc-shaped side plates, fixed to the inner side of the arc-shaped horizontal plate and tightly attached to the inner wall of the steel retaining wall; positioning nuts, welded to the arc-shaped horizontal plate and communicating with the through holes; adjusting bolts, threaded from top to bottom to the positioning nuts and abutting against the top surface of the steel retaining wall; and angle steel, welded at both ends to the back of the two opposing arc-shaped side plates, with its top placed under the I-beam main beams. This utility model can avoid the influence of raised soil, thereby leveling the guide pipe frame.

Description

Technical Field

[0001] This utility model relates to the field of building construction, and in particular to a concrete auxiliary pouring component for rotary drilling cast-in-place piles. Background Technology

[0002] During the drilling of rotary bored piles, the surrounding soil bulges, which can affect the smooth laying of the guide pipe support. Some bulges can be resolved by natural soil settlement, while others require layered excavation and refilling, which is quite troublesome and significantly impacts the construction progress of the bored piles. For example, Chinese invention patent application publication number CN 109577335A discloses a concrete grouting guide pipe support. This support includes a steel plate construction platform and supporting components. The steel plate construction platform has a reserved guide pipe hole in the middle for supporting the concrete steel guide pipe. A cover plate is provided above the reserved guide pipe hole and is movably connected to the steel plate construction platform. The supporting components are connected below the steel plate construction platform and are telescopic rods. The four feet of this guide pipe support rely on flat soil. When the soil around the borehole bulges unevenly, it will affect the leveling of the guide pipe support, thereby affecting the verticality of the guide pipe and the quality of the subsequent bored pile. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a concrete auxiliary grouting component for rotary drilling cast-in-place piles, which can avoid the influence of soil heave around the borehole, thereby leveling the guide frame and thus helping to ensure the verticality of the cast-in-place pile guide.

[0004] To solve the above problems, a concrete auxiliary pouring assembly for rotary drilling cast-in-place piles is adopted, which includes:

[0005] The guide frame is set above the steel retaining wall, through which the grouting pile guide is inserted into the steel retaining wall. It has two spaced parallel I-beam main beams that span the steel retaining wall.

[0006] An arc-shaped horizontal plate is placed under the I-beam of the guide frame and is positioned between the steel retaining wall and the I-beam. It is parallel to the top surface of the steel retaining wall, and through holes are opened on the portions of its ends that extend beyond the lower flange of the I-beam.

[0007] The arc-shaped side plate is fixed to the inner side of the arc-shaped horizontal plate and is tightly attached to the inner wall of the steel protective wall.

[0008] A positioning nut is welded to an arc-shaped horizontal plate and communicates with the through hole;

[0009] An adjusting bolt, which is threaded from top to bottom to the positioning nut, and abuts against the top surface of the steel retaining wall;

[0010] Angle steel, with its two ends welded to the back of two opposing arc-shaped side plates, is placed on top of the I-beam main beam.

[0011] As a further improvement of this utility model, the arc-shaped side plate is tightly attached to the inner wall of the steel retaining wall and supported by angle steel to prevent displacement. The height of the arc-shaped horizontal plate can be adjusted by adjusting the bolts, so that the two ends of the guide frame are not installed on the soil. Thus, the steel retaining wall provides support and facilitates leveling.

[0012] As a further improvement of this utility model, a section is cut off from each end of the angle steel to form an arc-shaped end, which is adapted to the back of the arc-shaped side plate.

[0013] This structure can improve the welding quality at both ends of the angle steel.

[0014] As a further improvement of this utility model, a shim is provided at the lower end of the adjusting bolt and placed on the top surface of the steel retaining wall.

[0015] With this structure, the gasket can increase the contact area, thereby increasing the friction.

[0016] As a further improvement of this utility model, both sides of the I-beam main beam are fitted with positioning nuts.

[0017] With this structure, the I-beam main beam is restrained by the positioning nuts on both sides, and the I-beam main beam also prevents the angle steel from moving into the steel retaining wall circle; thus forming a mutual restraining effect.

[0018] As a further improvement of this utility model, the guide frame also includes two spaced and parallel I-beam secondary beams, which together with the main I-beam form a rectangular planar frame. A first U-shaped support is spaced at the center of the rectangular planar frame, and a guide plate is laid on top of the rectangular planar frame. Guide holes are opened in the guide plate for the grouting pile guide pipe to pass through. Second U-shaped supports are provided on both sides of the guide plate. The second U-shaped supports correspond to the positions of the first U-shaped supports and are connected to them, allowing double-ended screws to pass through and be tightened with nuts.

[0019] With this structure, the guide plate can be assembled on a rectangular planar frame, which is convenient for disassembly, assembly, and reuse.

[0020] As a further improvement of this utility model, a positioning support is provided on the guide plate in a cross orientation, and a threaded hole is provided on the positioning support for the positioning bolt to pass through, and the positioning bolt abuts against the outer wall of the grouting pile guide tube.

[0021] With this structure, after the positioning bolts are tightened against the duct of the cast-in-place pile, they, together with the guide plate, achieve double-layer limiting to prevent the duct of the cast-in-place pile from tilting.

[0022] As a further improvement of this utility model, a steel reinforcement strip is laid between the guide plate and the I-beam secondary beam.

[0023] With this structure, the steel reinforcement bars can fill excess space and prevent construction workers or tools from falling through the borehole.

[0024] As a further improvement of this utility model, lifting lugs are provided on the I-beam secondary beam.

[0025] With this structure, the lifting lugs facilitate hoisting and installation.

[0026] As a further improvement of this utility model, a pull rope is threaded through the lifting lug.

[0027] With this structure, the ropes can be operated by construction workers to pull the guide frame back and forth to find the right position.

[0028] This invention can avoid the influence of soil heave around the borehole, thereby leveling the guide frame and thus helping to ensure the verticality of the cast-in-place pile guide. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of an embodiment.

[0030] Figure 2 This is a schematic diagram of the structure after the duct frame is removed.

[0031] Figure 3 A schematic diagram of the structure for positioning nuts to clamp against the I-beam main beam.

[0032] Attached reference numerals: 1. Guide frame; 101. I-beam main beam; 102. I-beam secondary beam; 103. First U-shaped support; 104. Guide plate; 105. Guide hole; 106. Second U-shaped support; 107. Double-ended threaded rod; 108. Positioning support; 109. Threaded hole; 110. Positioning bolt; 111. Reinforcing steel railing; 112. Lifting lug; 113. Pull rope;

[0033] 2. Steel retaining wall; 3. Cast-in-place pile guide pipe;

[0034] 4. Arc-shaped horizontal plate; 401. Through hole;

[0035] 5. Arc-shaped side plate; 6. Positioning nut; 7. Adjusting bolt; 8. Angle steel; 9. Washer. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] Example 1

[0039] like Figures 1-3 As shown, a concrete auxiliary pouring assembly for rotary drilling cast-in-place piles includes:

[0040] The guide frame 1 is set above the steel retaining wall 2, in which the grouting pile guide pipe 3 is inserted into the steel retaining wall 2. It has two parallel I-beam main beams 101 spaced apart, the I-beam main beams 101 spanning the steel retaining wall 2.

[0041] An arc-shaped horizontal plate 4 is placed under the I-beam main beam 101 of the guide frame 1 and is set between the steel protective wall 2 and the I-beam main beam 101. It is parallel to the top surface of the steel protective wall 2, and through holes 401 are opened on the portions of its ends that extend beyond the lower flange of the I-beam main beam 101.

[0042] Arc-shaped side plate 5 is fixed to the inner side of arc-shaped horizontal plate 4 and closely attached to the inner wall of steel protective wall 2;

[0043] The positioning nut 6 is welded to the arc-shaped horizontal plate 4 and communicates with the through hole 401;

[0044] Adjusting bolt 7, which is threaded from top to bottom to the positioning nut 6, and abuts against the top surface of the steel retaining wall 2;

[0045] Angle steel 8, with its two ends welded to the back of two opposite arc-shaped side plates 5, is placed under the I-beam main beam 101.

[0046] In this embodiment, the arc-shaped side plate 5 is tightly attached to the inner wall of the steel retaining wall 2 and supported by the angle steel 8 to prevent displacement. The adjusting bolt 7 can adjust the height of the arc-shaped horizontal plate 4, so that the two ends of the guide frame 1 are not installed on the soil. Thus, the steel retaining wall 2 provides support for leveling.

[0047] In this embodiment, a section is cut off at each end of the angle steel 8 to form an arc-shaped end, which is adapted to the back of the arc-shaped side plate 5.

[0048] This structure can improve the welding quality at both ends of the angle steel 8.

[0049] In this embodiment, a washer 9 is provided at the lower end of the adjusting bolt 7 and placed on the top surface of the steel retaining wall 2.

[0050] With this structure, gasket 9 can increase the contact area, thereby increasing the friction.

[0051] In this embodiment, both sides of the I-beam main beam 101 are fitted with positioning nuts 6.

[0052] With this structure, the I-beam main beam 101 is abutted and limited by the positioning nuts 6 on both sides, and the I-beam main beam 101 also prevents the angle steel 8 from moving into the circle of the steel protective wall 2; thus forming a mutual limiting effect.

[0053] In this embodiment, the guide frame 1 further includes two spaced and parallel I-beam secondary beams 102, which together with the main I-beam 101 form a rectangular planar frame. A first U-shaped support 103 is spaced apart in the middle of the rectangular planar frame. A guide plate 104 is laid on top of the rectangular planar frame, and guide holes 105 are provided in the guide plate 104 for the grouting pile guide pipe 3 to pass through. Second U-shaped supports 106 are provided on both sides of the guide plate 104. The second U-shaped supports 106 correspond to the positions of the first U-shaped supports 103 and are connected to the first U-shaped supports 103 to allow the double-ended screw 107 to pass through and be tightened with a nut.

[0054] With this structure, the guide plate 104 can be assembled on a rectangular planar frame, which is convenient for disassembly, assembly, and reuse.

[0055] In this embodiment, a positioning support 108 is provided on the guide plate 104 in a cross orientation, and a threaded hole 109 is provided on the positioning support 108 for the positioning bolt 110 to pass through. The positioning bolt 110 abuts against the outer wall of the grouting pile guide tube 3.

[0056] With this structure, after the positioning bolt 110 is tightened against the grouting pile guide tube 3, it achieves double-layer limiting with the guide plate 104 to prevent the grouting pile guide tube 3 from tilting.

[0057] In this embodiment, a steel reinforcement strip 111 is laid between the guide plate 104 and the I-beam secondary beam 102.

[0058] With this structure, the steel reinforcement bars 111 can fill the excess space and prevent construction workers or tools from falling through the borehole.

[0059] In this embodiment, a lifting lug 112 is provided on the I-beam secondary beam 102.

[0060] With this structure, the lifting lug 112 is easy to lift and install.

[0061] In this embodiment, a pull rope 113 is threaded through the lifting lug 112.

[0062] With this structure, the pull rope 113 can be operated by construction workers to pull the guide frame 1 back and forth to find a suitable position.

[0063] This invention can avoid the influence of soil heave around the borehole, thereby leveling the guide frame and thus helping to ensure the verticality of the cast-in-place pile guide.

[0064] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several equivalent substitutions or obvious modifications can be made without departing from the concept of the present invention, and all such modifications, with identical performance or use, should be considered within the protection scope of the present invention.

Claims

1. A concrete auxiliary pouring assembly for a rotary dig bored pile, characterized by include: The guide frame (1) is set above the steel retaining wall (2), in which the grouting pile guide pipe (3) is inserted into the steel retaining wall (2), and has two spaced parallel I-beam main beams (101) that span the steel retaining wall (2). An arc-shaped horizontal plate (4) is placed under the I-beam main beam (101) of the guide frame (1) and is set between the steel protective wall (2) and the I-beam main beam (101). It is parallel to the top surface of the steel protective wall (2), and through holes (401) are opened on the part of its two ends that extend beyond the lower flange of the I-beam main beam (101). Arc-shaped side plate (5) is fixed to the inner side of arc-shaped horizontal plate (4) and closely attached to the inner wall of steel protective wall (2); A positioning nut (6) is welded to an arc-shaped horizontal plate (4) and communicates with the through hole (401); Adjusting bolt (7), which is threaded from top to bottom to the positioning nut (6) and abuts against the top surface of the steel retaining wall (2); An angle steel (8) with its two ends welded to the back of two opposite arc-shaped side plates (5), which are placed under the I-beam main beam (101).

2. The concrete auxiliary pouring assembly of the cast-in-place bored pile according to claim 1, characterized in that A section is cut off at each end of the angle steel (8) to form an arc-shaped end, which is adapted to the back of the arc-shaped side plate (5).

3. The concrete auxiliary pouring assembly of the cast-in-place bored pile according to claim 1, wherein The adjusting bolt (7) is provided with a washer (9) at its lower end, which is placed on the top surface of the steel retaining wall (2).

4. The concrete auxiliary pouring assembly for rotary drilling cast-in-place piles according to claim 1, characterized in that... The I-beam main beam (101) has positioning nuts (6) on both sides for contact.

5. The concrete auxiliary pouring assembly of the cast-in-place pile according to claim 1, wherein The guide frame (1) also includes two spaced and parallel I-beam secondary beams (102), which together with the main I-beam (101) form a rectangular planar frame. A first U-shaped support (103) is provided at intervals in the middle of the rectangular planar frame. A guide plate (104) is laid on the rectangular planar frame. A guide hole (105) is opened in the guide plate (104) for the grouting pile guide pipe (3) to pass through. A second U-shaped support (106) is provided on both sides of the guide plate (104). The second U-shaped support (106) corresponds to the first U-shaped support (103) and is connected to the first U-shaped support (103) for the double-ended screw (107) to pass through and be tightened with a nut.

6. The concrete auxiliary pouring assembly of the cast-in-place bored pile according to claim 5, wherein The guide plate (104) is provided with a positioning support (108) in a cross orientation. The positioning support (108) is provided with a threaded hole (109) for the positioning bolt (110) to pass through. The positioning bolt (110) abuts against the outer wall of the grouting pile guide pipe (3).

7. The concrete auxiliary pouring assembly of the cast-in-place bored pile according to claim 5, wherein A steel reinforcement strip (111) is laid between the guide plate (104) and the I-beam secondary beam (102).

8. The concrete auxiliary pouring assembly of the cast-in-place bored pile according to claim 5, wherein The secondary I-beam (102) is equipped with a lifting lug (112).

9. The concrete auxiliary pouring assembly of the cast-in-place bored pile according to claim 8, wherein A pull rope (113) is threaded through the lug (112).

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