Hole mouth device for rear reinforcement cage of long spiral press-grouting pile

Abstract

The utility model relates to a hole mouth device for a rear reinforcement cage of a long spiral press-grouting pile, which comprises a panel, a plurality of through holes, a plurality of through holes and a plurality of through holes, wherein the through holes are formed on the panel corresponding to the reinforcement cage; the lantern ring is fixedly mounted at the top of the panel and is arranged along the penetrating hole; the fixing edges are fixed to the bottom of the panel and oppositely arranged on the two sides of the penetrating hole, use is easy, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of steel cage positioning and protection, and particularly refers to an orifice device for a post - placed steel cage of a long - spiral pressure grouting pile. Background Art

[0002] As a construction method with high pile - forming efficiency and good quality, the long - spiral pressure grouting pile needs to adopt the method of first grouting concrete and then lowering the steel cage due to construction process requirements. The verticality of the steel cage during lowering cannot be effectively guaranteed, and there may be a situation where it is inserted into the mud and slag outside the hole wall. The steel cage cannot be accurately positioned before lowering, and the initial lowering position of the steel cage may be offset, resulting in the steel cage protection layer not meeting the requirements. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide an orifice device for a post - placed steel cage of a long - spiral pressure grouting pile. By positioning the panel at the position where the steel cage is to be hoisted and passing the steel cage through the collar and the through - hole, the downward position of the steel cage can be ensured not to shift.

[0004] The technical solution to achieve the above purpose is an orifice device for a post - placed steel cage of a long - spiral pressure grouting pile, including:

[0005] A panel, on which through - holes are formed corresponding to the steel cage;

[0006] A collar fixedly installed at the top of the panel and arranged along the through - hole; and

[0007] Fixed ribs fixedly arranged at the bottom of the panel and oppositely arranged on both sides of the through - hole.

[0008] Furthermore, a plurality of lifting rings are fixedly installed at the top of the panel.

[0009] Furthermore, there are four lifting rings, and the four lifting rings are symmetrically arranged in pairs at the four corners of the panel.

[0010] Furthermore, a plurality of reserved bolt holes are formed on the panel.

[0011] Furthermore, there are four reserved bolt holes, and the four reserved bolt holes are symmetrically arranged in pairs at the four corners of the panel.

[0012] Furthermore, the collar is in a flared shape, and the diameter of the part of the collar close to the panel is smaller than the diameter of the part of the collar far from the panel.

[0013] Furthermore, the diameter of the collar is larger than the diameter of the steel cage.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] By positioning the panel at the position where the steel cage is to be hoisted, the steel cage is passed through the collar and the through hole to ensure that the position below the steel cage does not shift. Preferably, the panel can be fixed by hoisting rings or steel bars inserted into the reserved bolt holes. Description of the Drawings

[0016] Figure 1 It is an effect diagram of the use of an orifice device for a post-inserted steel cage of a long spiral grouting pile.

[0017] Legend: 1. Panel; 2. Collar; 3. Fixed rib; 4. Hoisting ring; 5. Reserved bolt hole. Detailed Embodiment

[0018] The present utility model will be further described below in conjunction with the drawings and specific embodiments.

[0019] Refer to Figure 1 , an orifice device for a post-inserted steel cage of a long spiral grouting pile, comprising: a panel 1, a collar 2 and a fixed rib 3, a through hole is formed on the panel 1 corresponding to the steel cage; the collar 2 is fixedly installed at the top of the panel 1 and is arranged along the through hole; and the fixed rib 3 is fixed to the bottom of the panel 1 and is oppositely arranged on both sides of the through hole.

[0020] In the present utility model, a preferred embodiment is: the panel 1 is made of Q235B steel, and the thickness can be determined according to the actual situation on site. The fixed rib 3 is arranged corresponding to the shape of the guide wall pile position hole. By placing the fixed rib 3 in the guide wall pile position hole, the panel 1 is fixed, so as to facilitate the subsequent hoisting and lowering of the steel cage. After the long spiral grouting pile concrete is poured, the artificial is used to clean the concrete surface and the surrounding mud and slag, so as to avoid bringing the mud and slag into the steel cage during the lowering process, resulting in concrete with mud inclusions. After the mud and slag are cleaned, the through hole is set at the position corresponding to the pile position, and the fixed rib 3 is used to fix the through hole. The surveyor reviews and adjusts the position of the positioning hole to ensure that the collar 2 and the pile position form concentric circles. At this time, the steel cage is slowly hoisted and inserted into the collar 2. First, it is slowly lowered. After the lowering position of the steel cage is correct, the lowering speed can be appropriately increased.

[0021] Furthermore, a plurality of hoisting rings 4 are fixedly installed at the top of the panel 1. Preferably, when the fixed rib 3 cannot be fixedly installed in the guide wall pile position hole, the panel 1 can be positioned by passing a lifting rope through and tying it in the hoisting ring 4 in a selective manner.

[0022] Furthermore, four hoisting rings 4 are provided, and the four hoisting rings 4 are symmetrically arranged in pairs at the four corners of the panel 1.

[0023] Further, a number of reserved bolt holes 5 are formed on the panel 1. Preferably, when the fixing rib 3 cannot be fixedly installed in the guide wall pile hole, a steel drill rod can be driven into the reserved bolt hole 5 and the steel drill rod can be placed in the guide wall pile hole to further fix the panel 1.

[0024] Further, there are four reserved bolt holes 5, and the four reserved bolt holes 5 are symmetrically arranged in pairs at the four corners of the panel 1.

[0025] Further, the collar 2 is in a flared shape, and the diameter of the part of the collar 2 close to the panel 1 is smaller than the diameter of the part of the collar 2 away from the panel 1. Preferably, the collar 2 is in the form of being larger at the top and smaller at the bottom, and the diameter of the upper orifice should be more than 10 cm larger than the diameter of the steel reinforcement cage to ensure that the steel reinforcement cage can smoothly enter the inside of the collar 2, and the diameter of the bottom of the collar 2 is slightly larger than the steel reinforcement cage by 2 - 4 cm.

[0026] Further, the diameter of the collar 2 is larger than the diameter of the steel reinforcement cage.

[0027] The following describes the use process of the orifice device for the post - placed steel reinforcement cage of the long - helix grouting pile of the present utility model.

[0028] The fixing rib 3 is set corresponding to the shape of the guide wall pile hole. By placing the fixing rib 3 in the guide wall pile hole, the panel 1 is fixed, so as to facilitate the subsequent hoisting of the steel reinforcement cage. Preferably, when the fixing rib 3 cannot be fixedly installed in the guide wall pile hole, a lifting rope can be threaded and tied in the lifting ring 4 to position the panel 1 by a hanging method, or a steel drill rod can be driven into the reserved bolt hole 5 and the steel drill rod can be placed in the guide wall pile hole to further fix the panel 1; after the long - helix grouting pile concrete is poured, the surface of the concrete and the surrounding mud and slag are manually cleaned to prevent the mud and slag from being brought in when the steel reinforcement cage is lowered, resulting in concrete with mud inclusion. After the mud and slag are cleaned, the piercing hole is set at the position corresponding to the pile position, and the piercing hole is fixed by the fixing rib 3. The surveyor checks and adjusts the position of the positioning hole to ensure that the collar 2 and the pile position form a concentric circle. At this time, the steel reinforcement cage is slowly hoisted and inserted into the collar 2. First, it is slowly lowered. After the position of the steel reinforcement cage is correct, the lowering speed can be appropriately increased.

[0029] The above has described the present utility model in detail in combination with the embodiments of the drawings. Those of ordinary skill in the art can make various variations to the present utility model according to the above description. Therefore, some details in the embodiments should not constitute a limitation to the present utility model, and the protection scope of the present utility model will be defined by the scope of the appended claims.

Claims

1. An orifice device for a post - placed steel reinforcement cage of a long - spiral pressure - grouting pile, characterized in that, Comprising: A panel, on which through holes are formed corresponding to the steel reinforcement cage; A collar fixedly installed at the top of the panel and arranged along the through holes; And Fixed ribs fixed to the bottom of the panel and relatively arranged on both sides of the through holes.

2. The orifice device for the post-cage of long spiral pressure grouting piles according to claim 1, characterized in that: A plurality of lifting rings are fixedly installed at the top of the panel.

3. The orifice device for the post-cage of a long spiral pressure grouting pile according to claim 2, characterized in that: There are four lifting rings, and the four lifting rings are symmetrically arranged in pairs at the four corners of the panel.

4. The orifice device for the post - placed steel reinforcement cage of the long - spiral pressure - grouting pile according to claim 1, characterized in that: A plurality of reserved bolt holes are formed on the panel.

5. The orifice device for the post-cage of a long spiral pressure grouting pile according to claim 4, characterized in that: There are four reserved bolt holes, and the four reserved bolt holes are symmetrically arranged in pairs at the four corners of the panel.

6. The orifice device for the post-cage of long spiral pressure grouting piles according to claim 1, wherein: The collar is in a flared shape, and the diameter of the part of the collar close to the panel is smaller than the diameter of the part of the collar far from the panel.

7. The orifice device for the post-cage of the long spiral pressure grouting pile according to claim 1, characterized in that: The diameter of the collar is larger than the diameter of the steel reinforcement cage.

Images