CN109695252B - Quality control method for construction process of equipment foundation reserved hole - Google Patents

Quality control method for construction process of equipment foundation reserved hole Download PDF

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Publication number
CN109695252B
CN109695252B CN201811520740.2A CN201811520740A CN109695252B CN 109695252 B CN109695252 B CN 109695252B CN 201811520740 A CN201811520740 A CN 201811520740A CN 109695252 B CN109695252 B CN 109695252B
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template
reserved hole
hole
reserved
steel
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CN109695252A (en
Inventor
张春霖
鲁永群
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Safbon Water Service Holding Inc Shanghai
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Safbon Water Service Holding Inc Shanghai
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/32Foundations for special purposes
    • E02D27/44Foundations for machines, engines or ordnance
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D33/00Testing foundations or foundation structures

Abstract

The invention provides a quality control method for a construction process of an equipment foundation reserved hole, which is characterized by comprising the following steps of S1): determining the use material and the manufacturing method of the reserved hole template according to the size and the shape of the reserved hole; s2) prefabrication: performing quality control on the prefabrication of the reserved hole template; s3) installing: controlling the quality of the installation of the reserved hole template, and controlling the position of a central line, the exposed lengths of the inserted bars and the embedded bolts within allowable deviation; s4) dismantling: performing quality control on the removal of the reserved hole template, and cleaning the reserved hole; the invention has the advantages that: the optimal scheme is adopted for the quality control points of the upper and lower through reserved holes, the through rectangular or special-shaped templates with special requirements, the non-through reserved holes and the prefabricated and installed templates made of different materials respectively, various quality control requirements during complex or batch construction are met, and the construction quality and the working efficiency are improved.

Description

Quality control method for construction process of equipment foundation reserved hole
Technical Field
The invention relates to the field of reserved hole construction, in particular to a quality control method for an equipment foundation reserved hole construction process.
Background
With the development of the work of ecological civilization, environmental protection and energy conservation and new energy, the high-speed development of liquefied natural gas liquefaction plants prepared from waste gas such as coal stove gas, coal bed gas and the like, the use of equipment such as compressors, separation tanks, storage tanks and the like is gradually increased, and the precision requirement on fixed embedded bolts of the equipment is higher and higher. The design of the current design unit for the fixing mode of the equipment and the foundation gradually tends to reserve holes, but the reserved holes have a plurality of difficulties in the construction process, and a plurality of quality control points are set for the reserved holes in the construction process through exploration and improvement in the construction process for many years; in order to provide reference for the same type of engineering construction projects in the future, quality control points in the construction process of the equipment foundation reserved hole need to be integrated and optimized.
Disclosure of Invention
The invention aims to provide a quality control method for a construction process of a reserved hole of an equipment foundation.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a quality control method for the construction process of a reserved hole of an equipment foundation is characterized by comprising the following steps
S1) preparing: determining the material used for the reserved hole template and the manufacturing method of the template according to the size and the shape of the reserved hole;
s2) prefabrication: controlling the quality of the prefabricated template with the reserved hole opening, ensuring that the surface of the template is smooth and the gap is tight, and ensuring that the size meets the design requirement of the reserved hole;
s3) installing: controlling the quality of the installation of the reserved hole template, and controlling the positions of center lines of the embedded steel plates, the embedded pipes, the embedded holes, the inserted bars and the embedded bolts and the exposed lengths of the inserted bars and the embedded bolts within allowable deviation;
s4) dismantling: performing quality control on the removal of the reserved hole template, cleaning the reserved hole, and checking whether the reserved hole is deformed;
the step S1 includes the steps of:
s11) mastering the position, size, shape and elevation of the reserved hole;
s12) adopting tubular finished product materials for the up-down through reserved holes, wherein the finished product materials are required to be tidy and regular,
the design requirement of the through reserved holes is rectangular or special-shaped, a wood template and a steel template are adopted, and the upper and lower calibers of the through reserved holes are the same;
for the holes which are not penetrated and have the depth of less than 800mm, a steel reinforcement cage, a steel wire mesh and a polystyrene board are adopted;
for holes which are not penetrated and have the depth of more than 800mm, assembling reinforcement precast slabs or assembling templates by using dismantling-free steel plates;
s13) confirming that the precision of the detection instrument cannot be lower than the precision of the detected item by 0.1mm, and then checking the machine used for construction to ensure that the equipment is intact;
the step S2 includes the steps of:
when the wood template and the steel template are adopted, the joints are tight during prefabrication, the steel plate assembled template or the prefabricated plate assembled template is used for manufacturing the disassembly-free template, the wood template is assembled by small pieces and is easy to disassemble, and ribbed plates and supports are additionally arranged inside the wood template during fragment assembly to prevent the template from deforming;
for an impermeable reserved hole, the reserved hole is made into a trapezoidal structure with a small upper part and a big lower part, and the gradient is 1: 10;
penetrating reservation hole about adopting plank sheathing and steel form installation, including following prefabrication process:
blanking according to the size of a reserved hole, assembling two or three pieces of each surface as much as possible, internally adding ribbed plates and supporting and fixing, wherein the distance between the internal supports is not more than 300 mm;
the upper opening and the lower opening are plugged in the inner part of the template opening, and a steel bar pull ring is embedded in the bottom of the template opening, so that the bottom die is convenient to disassemble;
after prefabrication is completed, the surface of the template is ensured to be flat, gaps are tight, and the size meets the design requirement;
and (4) after the prefabrication inspection is correct, coating a release agent.
In step S2, adopt reinforcing bar cage, wire net and polyphenyl board installation impenetrable reservation hole, including following prefabrication process:
blanking the steel bar framework steel bars according to the size of the reserved hole, wherein the section size is 20-30mm larger than the size of the hole opening during blanking, and the length is 50-70 mm;
after blanking is finished, welding and assembling reinforcing steel bars into a reinforcing cage according to the size of the opening and the enlarged size;
cutting the polyphenyl board into a shape of a size of a reinforcement cage, tightly packaging the polyphenyl board by using plastic cloth or adhesive tape, plugging the polyphenyl board into the reinforcement cage, plugging a polyphenyl board mold in the cage tightly, and plugging an upper opening and a lower opening;
wrapping a layer of steel window mesh outside the steel reinforcement cage to ensure the section size of the preformed hole;
in the step S2, installing an impermeable reserved hole by using a non-removable form, including the following prefabricating steps:
prefabricating a concrete precast slab according to the size of a reserved hole, wherein the concrete strength of the slab is higher than that of basic concrete, the steel bars adopt phi 4mm cold-drawn steel wires, the interval is @ 150-;
the steel bars or small embedded parts are reserved at the plate edges and are used during assembly, so that the prefabricated site is kept on a flat, compact and clean hardened ground;
the prefabricated template is determined to be flat, the angle is straight and the embedded part is complete;
in the step S2, installing the impermeable reserved hole by using the steel plate includes the following prefabricating steps:
blanking the steel plate according to the size of the reserved hole, and splicing and welding according to the size of the hole after blanking is finished;
when the side length of the hole exceeds 200mm after the assembly is finished, rib welding is carried out on the outer surface of the steel plate, so that the deformation of the steel plate is prevented;
and (5) finishing prefabrication, confirming that the surface of the template is kept flat and the gap is tight.
In step S3, when the formwork with the through reserved holes is installed, the method includes the following installation steps:
positioning and paying off, namely mounting a positioning fulcrum at the position of a reserved hole at the bottom of the template, and inserting the reserved hole template into the fulcrum for fixing;
a hole is reserved at the position of a reserved hole at the bottom of the template, and the reserved hole template is inserted into the hole and fixed;
a scaffold bracket is used as a fulcrum to form a cross, or a steel reinforcement framework is used for reinforcing and fixing the upper part of the reserved hole template, and the steel reinforcement framework is used or additionally supported and fixed in the middle of the reserved hole template;
in the step S3, when the template having the reserved hole not penetrated is mounted, the method includes the following mounting steps:
when an impermeable reserved hole is installed by adopting a reinforcement cage, a steel wire mesh and a polyphenyl board, a reinforcement is fixed by adopting binding wires, and a reinforcement framework and a mesh are supported and fixed to prevent displacement after a reserved hole template is placed;
a reserved hole template in plain concrete is positioned by adding a support at the bottom of the template, and two transverse sides of the reserved hole template are fixed by adopting a lacing wire, an inclined support and a triangular support.
Further, when the wooden template or the steel template is dismantled through the reserved holes which are arranged from top to bottom, the method comprises the following steps: firstly, removing a top sealing plate of the template, then removing a bottom plate by using a pull ring embedded at the bottom, and finally removing a side plate;
if deformation occurs after disassembly and timely treatment is carried out, the side wall is chiseled firstly, and the hole is cleaned.
Further, when the reinforcing cage, the steel wire mesh and the polystyrene board are removed from the hole which is not permeable and has the depth of less than 800mm, sundries such as the polystyrene board, the plastic cloth and the like filled in the hole are cleaned, and the concrete slurry which permeates into the hole is picked and chiseled clean.
The method has important practical significance for realizing the quality control of the construction process of the equipment foundation reserved hole, and is mainly embodied as follows: the optimal scheme is adopted for the quality control points of the upper and lower through reserved holes, the through rectangular or special-shaped templates with special requirements, the non-through reserved holes and the prefabricated and installed templates made of different materials respectively, various quality control requirements during complex or batch construction are met, and the construction quality and the working efficiency are improved.
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a schematic view of an impermeable trapezoidal shaped preformed hole of the present invention;
FIG. 3 is a schematic view of the reserved hole template of the present invention using a wooden template;
FIG. 4 is a schematic view of a bottom plate sealing plate and a steel pull ring of the reserved hole in the invention;
FIG. 5 is a schematic structural view of an impermeable reserved hole installed by using a reinforcement cage, a steel wire mesh and a polystyrene board in the present invention;
FIG. 6 is a schematic view of a concrete precast slab used for a reserved hole formwork according to the present invention;
FIG. 7 is a plan view of a through reserved hole in the present invention;
FIG. 8 is a schematic view of the overall structure of the through reserved hole of the present invention.
Reference numerals:
1 reserved side plate, 2 top plate, 3 bottom plate, 4 steel bar pull ring, 5 embedded parts, 6 steel bar net sheet, 7 reserved hole,
8 the steel reinforcement framework.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention discloses a quality control method for the construction process of a reserved hole of an equipment foundation, which is characterized by comprising the following steps of
S1) preparing: determining the material used for the reserved hole template and the manufacturing method of the template according to the size and the shape of the reserved hole;
s2) prefabrication: controlling the quality of the prefabricated template with the reserved hole opening, ensuring that the surface of the template is smooth and the gap is tight, and ensuring that the size meets the design requirement of the reserved hole;
s3) installing: controlling the quality of the installation of the reserved hole template, and controlling the positions of center lines of the embedded steel plates, the embedded pipes, the embedded holes, the inserted bars and the embedded bolts and the exposed lengths of the inserted bars and the embedded bolts within allowable deviation;
s4) dismantling: and (4) performing quality control on the removal of the reserved hole template, cleaning the reserved hole, and checking whether the reserved hole is deformed.
The step S1 includes the steps of:
s11) mastering the position, size, shape and elevation of the reserved hole;
s12) adopting tubular finished product materials for the up-down through reserved holes, wherein the finished product materials are required to be tidy and regular,
the design requirement of the through reserved holes is rectangular or special-shaped, a wood template and a steel template are adopted, and the upper and lower calibers of the through reserved holes are the same;
for the holes which are not penetrated and have the depth of less than 800mm, a steel reinforcement cage, a steel wire mesh and a polystyrene board are adopted;
for holes which are not penetrated and have the depth of more than 800mm, the reinforcement precast slabs are assembled, or the dismantling-free steel plate assembled templates are adopted, and the reinforcement precast slabs which are higher than the grade of the basic concrete are preferably assembled, or the dismantling-free steel plate assembled templates are adopted;
s13) confirming that the precision of the detection instrument can not be lower than the precision of the detected item by 0.1mm, then checking the machine used for construction to ensure the equipment is intact, and in addition, the constructor can be on duty after being trained and examined to be qualified, and the welder, the electrician and other special operators shall be certified on duty.
In the step 1, the steel bar is determined to be phi 6-12mm according to the size of the hole, the steel wire mesh is made of steel window gauze, the density of the polystyrene board is not less than 25Kg/m3, the polystyrene board is easy to deform under the concrete pressure when the density is too small, and the wood formwork preferably adopts a formwork with better rigidity, such as: multilayer boards, bamboo plywood, square wood and the like.
The step S2 includes the steps of: when the wooden template and the steel template are adopted, the joints are tight during prefabrication, the steel plate assembled template or the prefabricated plate assembled template is used for manufacturing the disassembly-free template, the wooden template is assembled by small pieces and is easy to disassemble, the wooden template must be disassembled, the use of the template is prevented from being influenced by decay, and ribbed plates and supports are added inside the fragment assembled template to prevent the template from deforming;
as shown in fig. 2, for an impermeable reserved hole, the reserved hole is made into a trapezoid body regardless of the dynamic load or the non-dynamic load, the reserved hole is preferably made into a trapezoid structure with a small upper part and a large lower part, and the gradient is preferably 1: 10.
In step S2, the method for installing the upper and lower through reserved holes by adopting the wood templates and the steel templates comprises the following prefabricating processes: as shown in fig. 3, blanking according to the size of a reserved hole, wherein each surface adopts two or three assembled reserved side plates 1 as much as possible, a top plate 2 and a bottom plate 3 are respectively arranged on two surfaces, a ribbed plate is added in the reserved hole and is supported and fixed, and the internal support distance is not more than 300 mm;
as shown in fig. 4, the upper and lower openings are plugged inside the opening of the template, and a steel bar pull ring 4 is embedded in the bottom plate 3, so that the bottom die is convenient to remove;
after prefabrication is completed, the surface of the template is ensured to be flat, gaps are tight, and the size meets the design requirement;
and (4) after the prefabrication inspection is correct, coating a release agent.
In step S2, as shown in fig. 5, installing an impermeable reserved hole by using a reinforcement cage 5, a steel wire mesh 6 and a polystyrene board 7 includes the following prefabricating steps:
blanking the steel bar framework steel bars according to the size of the reserved hole, wherein the section size is 20-30mm larger than the size of the hole opening during blanking, and the length is 50-70 mm;
after blanking is finished, welding and assembling the reinforcing steel bars into a reinforcing steel bar cage according to the size of the opening and the enlarged size, and welding firmly;
cutting the polyphenyl board into a shape of a size of a reinforcement cage, tightly packaging the polyphenyl board by using plastic cloth or adhesive tape, plugging the polyphenyl board into the reinforcement cage, plugging a polyphenyl board mold in the cage tightly, and plugging an upper opening and a lower opening;
a layer of steel window mesh is wrapped outside the steel reinforcement cage, so that the pressure of concrete is reduced, and the section size of the preformed hole is ensured;
in the step S2, installing an impermeable reserved hole by using a non-removable form, including the following prefabricating steps:
as shown in fig. 6, the concrete precast slab is precast according to the size of the reserved hole, the concrete strength of the slab is higher than that of the basic concrete, the steel bars adopt phi 4mm cold-drawn steel wires, the interval is @ 150-;
the steel bars or small embedded parts 5 are reserved at the plate edges and are used during assembly, so that the prefabricated site is kept on a flat, compact and clean hardened ground;
the prefabricated template is determined to be flat, the angle is straight and the embedded part is complete;
in the step S2, installing the impermeable reserved hole by using the steel plate includes the following prefabricating steps:
blanking the steel plate according to the size of the reserved hole, and splicing and welding according to the size of the hole after blanking is finished;
when the side length of the hole exceeds 200mm after the assembly is finished, rib welding is carried out on the outer surface of the steel plate, so that the deformation of the steel plate is prevented;
and (5) finishing prefabrication, confirming that the surface of the template is kept flat, the gap is tight, and the size meets the design requirement.
In step S3, when the formwork with the through reserved holes is installed, the method includes the following installation steps: as shown in fig. 7 and 8, positioning and paying off, and installing a positioning fulcrum at the position of a reserved hole 7 at the bottom of the template, so that the template with the reserved hole 7 is inserted into the fulcrum for fixing;
a hole is formed at the position of a hole 7 reserved at the bottom of the template, and the template with the reserved hole 7 is inserted into the hole for fixation;
a scaffold bracket is used as a fulcrum to form a cross, or a steel reinforcement framework 8 is used for reinforcing the upper part of the fixed reserved hole template, and the steel reinforcement framework is used or additionally used for supporting the middle part of the fixed reserved hole 7 template;
in the step S3, when the template having the reserved hole not penetrated is mounted, the method includes the following mounting steps: when an impermeable reserved hole is installed by adopting a reinforcement cage, a steel wire mesh and a polyphenyl board, a reinforcement is fixed by adopting binding wires, and a reinforcement framework and a mesh are supported and fixed to prevent displacement after a reserved hole template is placed;
a reserved hole template in plain concrete is positioned by adding a support at the bottom of the template, and two transverse sides of the reserved hole template are fixed by adopting a lacing wire, an inclined support and a triangular support.
The installation quality standard of the reserved hole template is shown in Table 1
TABLE 1
When the wooden template or the steel template is dismantled through the reserved holes from top to bottom, the method comprises the following procedures: firstly, removing a top sealing plate of the template, then removing a bottom plate by using a pull ring embedded at the bottom, and finally removing a side plate; if deformation occurs after disassembly and timely treatment is carried out, the side wall is chiseled firstly, and the hole is cleaned.
When the reinforcing cage, the steel wire mesh and the polystyrene board are removed from the impermeable opening with the depth of less than 800mm, sundries such as the polystyrene board, the plastic cloth and the like filled in the hole are cleaned, and the concrete slurry permeated into the hole is removed and chiseled clean.
The method is characterized in that a hole template is reserved without being dismantled, although the template is not dismantled, the hole is checked to be clean, and whether the template is deformed or the use is influenced is checked.
And after the reserved hole template is dismantled, releasing the center line of the reserved hole according to the axis or the positioning line.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (7)

1. A quality control method for the construction process of a reserved hole of an equipment foundation is characterized by comprising the following steps
S1) preparing: determining the material used for the reserved hole template and the manufacturing method of the template according to the size and the shape of the reserved hole;
s2) prefabrication: controlling the quality of the prefabricated template with the reserved hole opening, ensuring that the surface of the template is smooth and the gap is tight, and ensuring that the size meets the design requirement of the reserved hole;
s3) installing: controlling the quality of the installation of the reserved hole template, and controlling the positions of center lines of the embedded steel plates, the embedded pipes, the embedded holes, the inserted bars and the embedded bolts and the exposed lengths of the inserted bars and the embedded bolts within allowable deviation;
s4) dismantling: performing quality control on the removal of the reserved hole template, cleaning the reserved hole, and checking whether the reserved hole is deformed;
the step S1 includes the steps of:
s11) mastering the position, size, shape and elevation of the reserved hole;
s12) adopting tubular finished product materials for the up-down through reserved holes, wherein the finished product materials are required to be tidy and regular,
the design requirement of the through reserved holes is rectangular or special-shaped, a wood template and a steel template are adopted, and the upper and lower calibers of the through reserved holes are the same;
for the holes which are not penetrated and have the depth of less than 800mm, a steel reinforcement cage, a steel wire mesh and a polystyrene board are adopted;
for holes which are not penetrated and have the depth of more than 800mm, assembling reinforcement precast slabs or assembling templates by using dismantling-free steel plates;
s13) confirming that the precision of the detection instrument cannot be lower than the precision of the detected item by 0.1mm, and then checking the machine used for construction to ensure that the equipment is intact;
the step S2 includes the steps of:
when the wood template and the steel template are adopted, the joints are tight during prefabrication, the steel plate assembled template or the prefabricated plate assembled template is used for manufacturing the disassembly-free template, the wood template is assembled by small pieces and is easy to disassemble, and ribbed plates and supports are additionally arranged inside the wood template during fragment assembly to prevent the template from deforming;
for an impermeable reserved hole, the reserved hole is made into a trapezoidal structure with a small upper part and a big lower part, and the gradient is 1: 10;
penetrating reservation hole about adopting plank sheathing and steel form installation, including following prefabrication process:
blanking according to the size of a reserved hole, assembling two or three pieces of each surface as much as possible, internally adding ribbed plates and supporting and fixing, wherein the distance between the internal supports is not more than 300 mm;
the upper opening and the lower opening are plugged in the inner part of the template opening, and a steel bar pull ring is embedded in the bottom of the template opening, so that the bottom die is convenient to disassemble;
after prefabrication is completed, the surface of the template is ensured to be flat, gaps are tight, and the size meets the design requirement;
and (4) after the prefabrication inspection is correct, coating a release agent.
2. The method for controlling the quality of the construction process of the equipment foundation reserved hole according to claim 1,
in step S2, adopt reinforcing bar cage, wire net and polyphenyl board installation impenetrable reservation hole, including following prefabrication process:
blanking the steel bar framework steel bars according to the size of the reserved hole, wherein the section size is 20-30mm larger than the size of the hole opening during blanking, and the length is 50-70 mm;
after blanking is finished, welding and assembling reinforcing steel bars into a reinforcing cage according to the size of the opening and the enlarged size;
cutting the polyphenyl board into a shape of a size of a reinforcement cage, tightly packaging the polyphenyl board by using plastic cloth or adhesive tape, plugging the polyphenyl board into the reinforcement cage, plugging a polyphenyl board mold in the cage tightly, and plugging an upper opening and a lower opening;
and a layer of steel window net is wrapped outside the steel reinforcement cage, so that the section size of the preformed hole is ensured.
3. The method for controlling the quality of the construction process of the equipment foundation reserved hole according to claim 1, wherein in the step S2, the method for installing the impermeable reserved hole by adopting the non-dismantling formwork comprises the following prefabricating processes:
prefabricating a concrete precast slab according to the size of a reserved hole, wherein the concrete strength of the slab is higher than that of basic concrete, the steel bars adopt phi 4mm cold-drawn steel wires, the interval is @ 150-;
the steel bars or small embedded parts are reserved at the plate edges and are used during assembly, so that the prefabricated site is kept on a flat, compact and clean hardened ground;
the prefabricated template is determined to be flat, the angle is straight and the embedded part is complete;
in the step S2, installing the impermeable reserved hole by using the steel plate includes the following prefabricating steps:
blanking the steel plate according to the size of the reserved hole, and splicing and welding according to the size of the hole after blanking is finished;
when the side length of the hole exceeds 200mm after the assembly is finished, rib welding is carried out on the outer surface of the steel plate, so that the deformation of the steel plate is prevented;
and (5) finishing prefabrication, confirming that the surface of the template is kept flat and the gap is tight.
4. The method for controlling the quality of the construction process of the equipment foundation reserved hole according to claim 1, wherein in the step S3, when the formwork of the through reserved hole is installed, the method comprises the following installation procedures:
positioning and paying off, namely mounting a positioning fulcrum at the position of a reserved hole at the bottom of the template, and inserting the reserved hole template into the fulcrum for fixing;
a hole is reserved at the position of a reserved hole at the bottom of the template, and the reserved hole template is inserted into the hole and fixed;
a scaffold support is used as a fulcrum to form a cross, or a steel reinforcement framework is used for reinforcing the upper part of the fixed reserved hole template, and the middle part of the fixed reserved hole template is supported by the steel reinforcement framework or additionally.
5. The method for controlling the quality of the construction process of the equipment foundation reserved hole according to claim 2 or 3, wherein the step S3 comprises the following installation procedures when installing the template which does not penetrate the reserved hole:
when an impermeable reserved hole is installed by adopting a reinforcement cage, a steel wire mesh and a polyphenyl board, a reinforcement is fixed by adopting binding wires, and a reinforcement framework and a mesh are supported and fixed to prevent displacement after a reserved hole template is placed;
a reserved hole template in plain concrete is positioned by adding a support at the bottom of the template, and two transverse sides of the reserved hole template are fixed by adopting a lacing wire, an inclined support and a triangular support.
6. The quality control method for the construction process of the equipment foundation reserved hole according to claim 1, wherein when the wood template or the steel template is dismantled from the reserved hole which is through from top to bottom, the method comprises the following steps: firstly, removing a top sealing plate of the template, then removing a bottom plate by using a pull ring embedded at the bottom, and finally removing a side plate;
if deformation occurs after disassembly and timely treatment is carried out, the side wall is chiseled firstly, and the hole is cleaned.
7. The method for controlling the quality of the construction process of the equipment foundation reserved hole according to claim 1,
when the reinforcing cage, the steel wire mesh and the polystyrene board are removed from the impermeable opening with the depth of less than 800mm, sundries such as the polystyrene board, the plastic cloth and the like filled in the hole are cleaned, and the concrete slurry permeated into the hole is removed and chiseled clean.
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CN111206614A (en) * 2020-03-17 2020-05-29 中化二建集团有限公司 Turnover utilization construction method for wooden embedded bolt sleeve of large equipment foundation
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