Bolt hole reserved forming construction method of equipment foundation and forming template of bolt hole reserved forming construction method

Abstract

The invention provides an equipment foundation bolt hole reserved forming construction method and a forming template thereof, the forming template of a reserved bolt hole comprises a template cylinder and plastic cloth, the diameter of the template cylinder is set according to the aperture of the reserved bolt hole, and the height of the template cylinder is at least equal to the height of the reserved bolt hole; the plastic cloth covers the outer surface of the formwork cylinder in an attached mode, the lower end of the plastic cloth is tightened through a binding wire, a binding opening is formed in the formwork cylinder, and the upper end of the plastic cloth is higher than the formwork cylinder and the reserved bolt hole top elevation; the forming construction method comprises the steps that after the forming mold is manufactured, the forming mold is fixed in place on a construction site, and after concrete pouring is completed and the mold removal condition is met, the mold plate barrel is pulled out; according to the method, the problems that the repeated utilization rate of a formwork is low, formwork removal is conducted are solved, the problem that the quality effect of the pouring face of the inner wall of the bolt hole is poor is solved, the formwork structure is easy and efficient to operate, and a large amount of construction manpower and material resources are saved.

Description

Technical Field

[0001] The invention belongs to the technical field of hole reservation construction, and in particular relates to a bolt hole reservation forming construction method for an equipment foundation and a forming template thereof. Background Art

[0002] At present, civil engineering formwork construction materials are diversified. Wood formwork is a traditional formwork material, which is easy to process and suitable for structures of various complex shapes. The traditional equipment foundation reserved bolt hole formwork construction often uses wooden formwork as the inner formwork. According to the size of the bolt hole, the formwork is cut to make the inner mold cylinder for installation and fixation, and then the concrete is poured.

[0003] The existing construction technology of reserved foundation bolt holes in wooden formwork has the following defects: 1) Timber resources are increasingly scarce, the use of wooden formwork is subject to certain restrictions, and its durability is relatively poor, and the turnover number is limited; 2) The wooden formwork is in direct contact with the outer concrete, and the concrete is bonded to the wooden formwork when the strength reaches the demolding requirement. Due to the small space of the bolt holes, the mold cylinder needs to be destroyed by prying and knocking. It is relatively difficult to remove the mold cylinder, which often causes damage to the prefabricated mold cylinder and cannot be reused. Summary of the invention

[0004] The technical problem to be solved by the invention is that the existing wooden forming templates of foundation bolt holes are bonded to concrete and are difficult to remove.

[0005] In order to solve the above problems, the present invention provides a new type of forming template, and its specific technical solution is: A forming template with reserved bolt holes comprises a template tube and a plastic sheet, wherein the diameter of the template tube is set according to the diameter of the reserved bolt holes, and the height of the template tube is at least equal to the height of the reserved bolt holes; the plastic sheet is fitted and covered on the outer surface of the template tube, the lower end of the plastic sheet is fastened by a binding wire, the tied opening is set inside the template tube, and the upper end of the plastic sheet is higher than the template tube and the top elevation of the reserved bolt holes.

[0006] Compared with the prior art, the present invention adopting the above structure has the following beneficial effects: 1) This structure adds a plastic sheet spacer between the contact surface of the formwork and the concrete, so that the plastic material and the concrete cannot form a strong bond, thereby improving the problem of difficulty in separating the forming mold from the concrete; the formwork cylinder can be directly and completely pulled out without damage, thereby increasing the number of times it is used; 2) This structure uses plastic sheeting for bottom sealing to prevent concrete from overflowing in the hole and ensure the designed height of the hole; 3) This structure uses a tie at one end to facilitate the peeling of the plastic sheet from the concrete, and the peeling process from bottom to top avoids damage to the inner wall of the bolt hole.

[0007] In order to solve the above problems, the present invention also provides a forming method, and its specific technical solution is: A bolt hole pre-formation construction method for equipment foundation is carried out according to the following steps: 1) Prefabricate the template cylinder according to the design size of the reserved bolt hole in the equipment foundation drawing. The diameter of the template cylinder is adapted to the diameter of the reserved bolt hole, and the height of the template cylinder is greater than or equal to the height of the reserved bolt hole; 2) Prepare plastic sheeting according to the diameter of the template cylinder, and cover the outer surface of the template cylinder with the plastic sheeting. The plastic sheeting should fit the template cylinder well, and the upper end of the plastic sheeting should be at least higher than the equipment foundation, and the lower end of the plastic sheeting should extend beyond the template cylinder. 3) The part of the lower end of the plastic sheet that extends out of the template tube is inserted into the template tube and the plastic sheet is tied up with a binding wire with the tied opening facing upwards, so that a flat seal is formed at the bottom of the template tube; 4) During the equipment foundation construction, the foundation obtained in step 3) is positioned and reinforced; 5) After the concrete pouring is completed and the conditions for demolding are met, the formwork cylinder is pulled out; 6) Grab the tied edge of the bottom plastic sheet and slowly lift it upwards. The plastic sheet is completely separated from the inner wall of the bolt hole of the equipment foundation, and the construction is completed.

[0008] Compared with the prior art, the present invention using the above method has the following beneficial effects: The construction method provided by the present invention solves the problems of low template reuse rate, difficulty in demolding, poor quality of the casting surface of the inner wall of the bolt hole, etc. It is not only simple and efficient to operate, but also can effectively shorten the construction period and save a lot of construction manpower and material resources while ensuring the construction quality.

[0009] As a preferred embodiment, a further technical solution of the above structure is: Optionally, the plastic sheet is one-piece and covers the entire outer wall of the template cylinder by wrapping it.

[0010] Optionally, the plastic sheet is a tube bag, which wraps the template tube in a sheathing manner.

[0011] The plastic sheeting is a thin plastic sheeting with good toughness and strength.

[0012] Specifically, the upper end of the plastic sheet is 20 mm to 30 mm higher than the top surface of the template cylinder or the equipment foundation, and the lower end of the plastic sheet is 200 mm longer than the template cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the forming template of the present invention; Figure 2 This is a schematic diagram of the template cylinder of the present invention being covered with plastic cloth; Figure 3 This is a schematic diagram of the installation of a one-piece plastic sheet of the present invention; Figure 4 This is a schematic diagram of the installation of the forming template of the present invention; Figure 5 This is a schematic diagram of the template cylinder of the present invention being disassembled; Figure 6 It is a schematic diagram of the state of peeling off the plastic sheet of the present invention.

[0014] In the figure: 1. Equipment foundation; 2. Formwork cylinder; 3. Plastic sheeting; 4. Bolt holes; 31. Tie. DETAILED DESCRIPTION

[0015] The present invention will be further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0016] The present invention provides a method for pre-forming a bolt hole 4 of an equipment foundation 1, see Figures 4 to 6 , follow these steps: 1) Prefabricate the template cylinder 2 according to the design size of the reserved bolt hole 4 in the equipment foundation 1 drawing, the template cylinder 2 has a diameter that matches the hole diameter of the reserved bolt hole 4, and the height of the template cylinder 2 is greater than or equal to the height of the reserved bolt hole 4.

[0017] 2) Prepare plastic sheet 3 according to the diameter of template cylinder 2, and cover the outer surface of template cylinder 2 with plastic sheet 3. It is required that plastic sheet 3 fits with template cylinder 2, the upper end of plastic sheet 3 is at least higher than equipment foundation 1, and the lower end of plastic sheet 3 is longer than template cylinder 2.

[0018] 3) The portion of the lower end of the plastic sheet 3 extending beyond the template tube 2 is inserted into the template tube 2 and the plastic sheet 3 is tied up with a binding wire so that the tied opening 31 faces upward, so that a flat seal is formed at the bottom of the template tube 2.

[0019] 4) During the construction of equipment foundation 1, the foundation obtained in step 3) is positioned and reinforced.

[0020] 5) After the concrete pouring is completed and the conditions for demolding are met, the formwork cylinder 2 is pulled out.

[0021] 6) Grab the tie 31 of the bottom plastic sheet 3 and slowly lift it upwards. The plastic sheet 3 is completely separated from the inner wall of the bolt hole 4 of the equipment foundation 1, and the construction is completed.

[0022] The forming mold structure adopted in the above-mentioned forming construction method is: a forming template with reserved bolt holes, including a template tube 2 and a plastic sheet 3, the diameter of the template tube 2 is set according to the aperture of the reserved bolt hole 4, and the height of the template tube 2 is at least equal to the height of the reserved bolt hole 4; the plastic sheet 3 fits and covers the outer surface of the template tube 2, the lower end of the plastic sheet 3 is tightly tied by binding wire, the tie 31 is set inside the template tube 2, and the upper end of the plastic sheet 3 is higher than the template tube 2 and the top elevation of the reserved bolt hole 4.

[0023] The template tube 2 can be made of composite wood, metal or PVC material, and is set according to the size of the holes designed on the equipment foundation 1. The anchor bolt holes 4 reserved on the equipment foundation 1 are usually square holes of about 100 mm. The staff can completely pull up the tie 31 by hand to peel off the plastic sheet 3.

[0024] The plastic sheet 3 is a thin plastic sheet 3 with good toughness and strength.

[0025] Optionally, the plastic sheet 3 is one-piece, which covers the entire outer wall of the template tube 2 in a wrapped form, so as to facilitate cutting and production.

[0026] Optionally, the plastic sheet 3 is a tube bag, which wraps the template tube 2 in a set manner; since this example is matched and customized according to the length of the template tube 2, it fits well with the surface of the template tube 2 and can be printed without overlapping.

[0027] Specifically, the upper end of the plastic sheet 3 is 20 mm to 30 mm higher than the top surface of the template cylinder 2 or the equipment foundation 1 , and the lower end of the plastic sheet 3 is about 200 mm longer than the template cylinder 2 .

[0028] Beneficial effects of the present invention: This solution adds a plastic sheet 3 between the contact surface of the template and the concrete, so that the plastic material and the concrete cannot form a strong bond, thereby improving the problem of difficulty in separating the forming mold and the concrete; the template tube 2 can be directly and completely pulled out without damage, thereby increasing the number of times it is used; 2) This solution uses the plastic sheet 3 to seal the bottom to prevent the concrete in the hole from overflowing and ensure the designed height of the hole; 3) This solution uses a tie 31 at one end to facilitate the peeling of the plastic sheet 3 from the concrete, and the peeling process from bottom to top avoids damage to the inner wall of the bolt hole 4.

[0029] The present invention solves the problems of low template reuse rate and demolding, and solves the problem of poor quality of the inner wall casting surface of the bolt hole 4. The mold structure design is not only simple and efficient to operate, but also can make demolding convenient and quick while ensuring construction quality, shorten the construction period, and save a lot of construction manpower and material resources.

[0030] The above description is only a preferred feasible embodiment of the present invention, and does not limit the scope of rights of the present invention. All equivalent changes made using the contents of the present specification and its drawings are included in the scope of rights of the present invention.

Claims

1. A forming template with reserved bolt holes, characterized in that: The invention comprises a template cylinder (2) and a plastic sheet (3); the diameter of the template cylinder (2) is set according to the diameter of the reserved bolt hole (4); the height of the template cylinder (2) is at least equal to the height of the reserved bolt hole (4); the plastic sheet (3) fits and covers the outer surface of the template cylinder (2); the lower end of the plastic sheet (3) is fastened by a binding wire; the tied opening (31) is arranged inside the template cylinder (2); and the upper end of the plastic sheet (3) is higher than the template cylinder (2) and the top elevation of the reserved bolt hole (4).

2. A bolt hole pre-formation construction method for equipment foundation, characterized in that: Follow these steps: 1) Prefabricate a template cylinder (2) according to the design size of the reserved bolt hole (4) in the equipment foundation (1) drawing, wherein the diameter of the template cylinder (2) is adapted to the hole diameter of the reserved bolt hole (4), and the height of the template cylinder (2) is greater than or equal to the height of the reserved bolt hole (4); 2) preparing a plastic sheet (3) according to the diameter of the template cylinder (2), and covering the outer surface of the template cylinder (2) with the plastic sheet (3), requiring the plastic sheet (3) to fit the template cylinder (2), the upper end of the plastic sheet (3) to be at least higher than the equipment foundation (1), and the lower end of the plastic sheet (3) to be longer than the template cylinder (2); 3) The portion of the lower end of the plastic sheet (3) extending beyond the template tube (2) is inserted into the template tube (2) and the plastic sheet (3) is tied up with a binding wire so that the tied opening (31) faces upward, so that the bottom of the template tube (2) forms a flat seal; 4) When constructing the equipment foundation (1), the foundation obtained in step 3) is positioned and reinforced; 5) After the concrete pouring is completed and the conditions for demolding are met, the formwork cylinder (2) is pulled out; 6) Grasp the tied opening (31) of the bottom plastic sheet (3) and slowly lift it upwards. The plastic sheet (3) is completely separated from the inner wall of the bolt hole (4) of the equipment foundation (1), and the construction is completed.

3. The bolt hole pre-formation construction method for equipment foundation according to claim 2 is characterized in that: The plastic sheet (3) is a single piece and covers the entire outer wall of the template cylinder (2) in a wrapped manner.

4. The bolt hole pre-formation construction method for equipment foundation according to claim 2 is characterized in that: The plastic sheet (3) is a tube bag, which wraps the template tube (2) in a sleeve manner.

5. The bolt hole pre-formation construction method for equipment foundation according to claim 2 is characterized in that: The plastic sheet (3) is a thin plastic sheet (3) with good toughness and strength.

6. The bolt hole pre-formation construction method for equipment foundation according to claim 2, characterized in that: The upper end of the plastic sheet (3) is 20 mm to 30 mm higher than the top surface of the template cylinder (2) or the equipment foundation (1), and the lower end of the plastic sheet (3) is 200 mm longer than the template cylinder (2).

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