CN114875973B - Construction method of concrete well in narrow space - Google Patents
Construction method of concrete well in narrow space Download PDFInfo
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- CN114875973B CN114875973B CN202210398856.3A CN202210398856A CN114875973B CN 114875973 B CN114875973 B CN 114875973B CN 202210398856 A CN202210398856 A CN 202210398856A CN 114875973 B CN114875973 B CN 114875973B
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- steel bar
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- 238000010276 construction Methods 0.000 title claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 34
- 239000010959 steel Substances 0.000 claims abstract description 34
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 6
- 238000009415 formwork Methods 0.000 claims description 48
- 238000009434 installation Methods 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 10
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 238000005266 casting Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/125—Manhole shafts; Other inspection or access chambers; Accessories therefor characterised by the lining of the shaft
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0007—Production methods using a mold
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention relates to a construction method of a concrete well in a narrow space, which comprises the following steps: binding the foundation pit to form a bottom plate reinforcing steel bar structure and a side wall reinforcing steel bar structure of the concrete well; vertically installing a plurality of first positioning rods on the bottom plate steel bar structure corresponding to the design positions of the inner template assembly; vertically installing a plurality of second positioning rods on the bottom plate steel bar structure corresponding to the design positions of the outer template assembly; pouring concrete to the bottom of the foundation pit to form a bottom plate concrete structure and burying and fixing a bottom plate reinforced structure; the inner template component is sleeved on a plurality of corresponding first positioning rods, and the outer template component is sleeved on a plurality of corresponding second positioning rods; the second limiting piece is arranged on the second limiting end; and pouring concrete in the pouring space to form a side wall concrete structure and embedding and fixing a side wall steel bar structure. And the construction is carried out without the need of setting up the templates in the foundation pit by personnel, so that the construction efficiency is improved.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a construction method of a concrete well in a narrow space.
Background
In the prior art, when a concrete well is constructed, a wood template is required to be erected in an excavated foundation pit, and concrete is poured to form the concrete well, but when the size of a cast-in-situ small well is 1 mm, the operation space in the foundation pit is too narrow, and constructors cannot carry out formwork erection construction in the foundation pit.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a construction method of a concrete well in a narrow space, so as to solve the problem that a constructor cannot support and construct a template in a foundation pit when constructing the concrete well in the narrow space.
In order to achieve the above purpose, the invention provides a construction method of a concrete well in a narrow space, comprising the following steps:
binding a bottom plate steel bar structure and a side wall steel bar structure of a concrete well in the excavated foundation pit, and vertically connecting the side wall steel bar structure with the bottom plate steel bar structure;
providing a plurality of first positioning rods, vertically installing the first positioning rods on the bottom plate steel bar structure corresponding to the design positions of the inner template assembly, and enabling the first positioning rods to be distributed at intervals and located on the inner side of the side wall steel bar structure;
providing a plurality of second positioning rods, vertically installing the second positioning rods on the bottom plate steel bar structure corresponding to the design positions of the outer template assembly, and enabling the second positioning rods to be distributed at intervals and located on the outer side of the side wall steel bar structure;
pouring concrete to the bottom of the foundation pit to form a bottom plate concrete structure and burying and fixing the bottom plate steel bar structure;
providing an assembled inner template assembly and an assembled outer template assembly, sleeving the inner template assembly on a plurality of corresponding first positioning rods, sleeving the outer template assembly on a plurality of corresponding second positioning rods, arranging the inner template assembly and the outer template assembly on a bottom plate concrete structure, forming pouring spaces among the inner template assembly, the outer template assembly and the bottom plate concrete structure, enabling the top ends of the first positioning rods to protrude out of the inner template assembly to form first limiting ends, and enabling the top ends of the second positioning rods to protrude out of the outer template assembly to form second limiting ends;
providing a first limiting piece, mounting the first limiting piece on the first limiting end, and tightly propping the inner template assembly on the bottom plate concrete structure through the first limiting piece so as to limit the movement of the inner template assembly;
providing a second limiting piece, mounting the second limiting piece on the second limiting end, and tightly propping the outer formwork component on the bottom plate concrete structure through the second limiting piece so as to limit the movement of the outer formwork component; and
and pouring concrete in the pouring space to form a side wall concrete structure and burying and fixing the side wall steel bar structure, so that the side wall concrete structure and the bottom plate concrete structure are connected into a whole to form the concrete well.
According to the invention, the first positioning rods and the second positioning rods are arranged on the bottom plate steel bar structure corresponding to the formwork supporting positions of the concrete well to be poured, the bottom plate concrete structure is poured firstly, the inner formwork component and the outer formwork component are arranged through the first positioning rods and the second positioning rods to play a limiting role, the inner formwork component and the outer formwork component are prevented from shifting when concrete is poured, after the concrete is poured, the inner formwork component and the outer formwork component are removed, a worker does not need to go into the foundation pit to support the formwork, the construction efficiency is improved, and convenience is brought.
The invention relates to a construction method of a concrete well in a narrow space, which is further improved in that,
when the inner template component and the outer template component are assembled, an inner splice plate and an outer splice plate are provided, a plurality of the inner splice plates are spliced and connected to form an inner template component, and a plurality of the outer splice plates are spliced and connected to form an outer template component.
The invention relates to a construction method of a concrete well in a narrow space, which is further improved in that,
providing a side connecting plate, and fixedly arranging the side connecting plate on two sides of the inner splice plate;
when the inner splice plates are spliced, the side connecting plates of two adjacent inner splice plates are oppositely attached and are connected in an installation mode, and the side connecting plates are located at the inner sides of the inner template assemblies formed by splicing.
The construction method of the concrete well in the narrow space is further improved in that the cross section of the inner template component is square, an included angle between one side connecting plate of the inner splice plate positioned at the corner of the inner template component and the corresponding inner splice plate is 45 degrees, the other side connecting plate is perpendicular to the corresponding inner splice plate, and the side connecting plate of the inner splice plate positioned between the corners of the inner template component is perpendicular to the corresponding inner splice plate.
The invention relates to a construction method of a concrete well in a narrow space, which is further improved in that,
providing an upper connecting plate and a lower connecting plate, vertically fixing the upper connecting plate at the top end of the inner splice plate, and vertically fixing the lower connecting plate at the bottom end of the inner splice plate;
when the inner splice plates are spliced, the upper connecting plates of the inner splice plates positioned above are oppositely attached to and are in mounting connection with the lower connecting plates of the inner splice plates positioned below, and the upper connecting plates and the lower connecting plates are positioned on the inner sides of the inner template assemblies formed by splicing.
The invention relates to a construction method of a concrete well in a narrow space, which is further improved in that,
when the inner template component is sleeved on the corresponding first positioning rods, the upper connecting plates and the lower connecting plates of the inner splice plates are sleeved on the corresponding first positioning rods.
The construction method of the concrete well in the narrow space is further improved in that the provided first positioning rod is a first screw rod, the provided first limiting piece is a first nut, and the first nut is connected to the corresponding first screw rod in a threaded mode so as to tightly prop the inner template component to the bottom plate concrete structure.
The invention further improves the construction method of the concrete well in the narrow space, wherein the provided first positioning rod is a first screw rod;
when the first positioning rod is installed on the bottom plate reinforcing steel bar structure, a first installation tube is provided, the top end of the first installation tube is open and the bottom end of the first installation tube is closed, threads are arranged on the inner wall of the first installation tube, the first installation tube is vertically installed on the bottom plate reinforcing steel bar structure, and the bottom end of the first screw rod is connected with the first installation tube through threads.
The construction method of the concrete well in the narrow space is further improved in that the first screw is detached from the first installation tube after the concrete reaches the design strength.
The construction method of the concrete well in the narrow space is further improved in that after the concrete reaches the design strength, the first limiting piece is removed from the first positioning rod, the second limiting piece is removed from the second positioning rod, and the inner template assembly and the outer template assembly are removed.
Drawings
FIG. 1 is a schematic diagram of a construction method of a concrete well in a small space according to the present invention.
FIG. 2 is a flow chart of a method of constructing a concrete well in a confined space in accordance with the present invention.
Symbol description: the concrete floor structure comprises a first positioning rod 10, an inner formwork assembly 21, an inner splice plate 211, a side connection plate 212, an upper connection plate 213, a lower connection plate 214, an outer formwork assembly 22, an outer splice plate 221, a side rib 222, an upper rib 223, a lower rib 224, a casting space 30, a first limiting member 40 and a floor concrete structure 50.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a construction method of a concrete well in a narrow space, which is characterized in that a plurality of first positioning rods and second positioning rods are arranged on a bottom plate reinforcement structure at positions corresponding to a formwork of the concrete well to be poured, the first positioning rods and the second positioning rods are sleeved with an inner formwork component and an outer formwork component in a distributed manner so as to limit the inner formwork component and the outer formwork component, after concrete is poured, the inner formwork component and the outer formwork component are removed, a worker does not need to go into a foundation pit to carry out formwork supporting construction, and the construction efficiency is improved.
The construction method of the concrete well in the narrow space of the invention is described below with reference to the accompanying drawings.
Referring to fig. 1 and 2, in this embodiment, a construction method of a concrete well in a small space includes the following steps:
s101: binding a bottom plate steel bar structure and a side wall steel bar structure of the concrete well in the excavated foundation pit, and vertically connecting the side wall steel bar structure with the bottom plate steel bar structure;
s102: providing a plurality of first positioning rods 10, vertically installing the plurality of first positioning rods 10 on the bottom plate steel bar structure corresponding to the design positions of the inner template assembly 21, and enabling the plurality of first positioning rods 10 to be distributed at intervals and located on the inner side of the side wall steel bar structure;
s103: providing a plurality of second positioning rods, vertically installing the plurality of second positioning rods on the bottom plate steel bar structure corresponding to the design positions of the outer template assembly 22, and enabling the plurality of second positioning rods to be distributed at intervals and located on the outer side of the side wall steel bar structure;
s104: pouring concrete to the bottom of the foundation pit to form a bottom plate concrete structure 50 and embedding and fixing a bottom plate reinforced structure;
s105: providing an assembled inner template assembly 21 and an assembled outer template assembly 22, sleeving the inner template assembly 21 on a plurality of corresponding first positioning rods 10, sleeving the outer template assembly 22 on a plurality of corresponding second positioning rods, enabling the inner template assembly 21 and the outer template assembly 22 to be arranged on a bottom plate concrete structure 50, forming pouring spaces among the inner template assembly 21, the outer template assembly 22 and the bottom plate concrete structure 50, enabling the top ends of the first positioning rods 10 to protrude out of a first limiting end outside the inner template assembly 21, and enabling the top ends of the second positioning rods to protrude out of a second limiting end outside the outer template assembly 22;
s106: providing a first limiting piece 40, installing the first limiting piece 40 on the first limiting end, and tightly propping the inner template assembly 21 on the bottom plate concrete structure 50 through the first limiting piece 40 so as to limit the movement of the inner template assembly 21;
s107: providing a second limiting piece, installing the second limiting piece on the second limiting end, and tightly propping the outer template assembly 22 on the bottom plate concrete structure 50 through the second limiting piece so as to limit the movement of the outer template assembly 22; and
s108: and casting concrete in the casting space to form a side wall concrete structure and embedding and fixing the side wall reinforced structure, so that the side wall concrete structure and the bottom plate concrete structure 50 are connected into a whole to form a concrete well.
In the construction method, structural steel bars are bound firstly, a plurality of first positioning rods 10 and second positioning rods are installed and fixed at the positions of the formwork, the inner formwork assembly 21 and the outer formwork assembly 22 are installed and detached through the first positioning rods 10 and the second positioning rods, no personnel is required to go down to the inside of a foundation pit to support the formwork, the formwork requirement of a narrow space can be met, the construction efficiency of the formwork is improved, the first positioning rods 10 and the second positioning rods play a limiting role on the inner formwork assembly 21 and the outer formwork assembly 22, and the conditions of shifting, collapsing and expanding the formwork of the inner formwork assembly 21 and the outer formwork assembly 22 are avoided when concrete pouring is carried out.
Referring to fig. 1, further, when the inner and outer formwork assemblies 21 and 22 are assembled, an inner splice plate 221 and an outer splice plate 221 are provided, a plurality of inner splice plates 221 are spliced to form the inner formwork assembly 21, and a plurality of outer splice plates 221 are spliced to form the outer formwork assembly 22.
Referring to fig. 1, in one embodiment, side connection plates 212 are provided, the side connection plates 212 being fixed to both sides of the inner splice plate 211;
when the inner splice plates 211 are spliced, the side connection plates 212 of the two adjacent inner splice plates 211 are oppositely attached and connected in an installation manner, and the side connection plates 212 are positioned on the inner side of the inner template assembly 21 formed by splicing, so that the installation and the disassembly are convenient.
Referring to fig. 1, preferably, the side connection plates 212 are disposed along the side edges of the inner splice plates 211, and the side connection plates 212 are provided with side connection holes, through which fasteners pass through the side connection holes of the side connection plates 212 of the adjacent two inner splice plates 211, to achieve the mounting connection of the adjacent two inner splice plates 211.
Referring to fig. 1, further, the cross section of the inner template assembly 21 is square, an included angle between one side connecting plate 212 of the inner splice plates 211 positioned at the corners of the inner template assembly 21 and the corresponding inner splice plates 211 is 45 °, the other side connecting plate 212 is perpendicular to the corresponding inner splice plates 211, and the side connecting plate 212 of the inner splice plates 211 positioned between the corners of the inner template assembly 21 is perpendicular to the corresponding inner splice plates 211.
Referring to fig. 1, further, an upper connection plate 213 and a lower connection plate 214 are provided, the upper connection plate 213 is vertically fixed to the top end of the inner splice plate 211, and the lower connection plate 214 is vertically fixed to the bottom end of the inner splice plate 211;
when the inner splice plates 211 are spliced, the upper connecting plates 213 of the inner splice plates 211 positioned above are oppositely attached to and connected with the lower connecting plates 214 of the inner splice plates 211 positioned below, and the upper connecting plates 213 and the lower connecting plates 214 are positioned on the inner sides of the inner template assemblies 21 formed by splicing, so that the inner splice plates are convenient to install and detach.
Referring to fig. 1, preferably, an upper connection plate 213 is disposed along the top edge of the inner splice plate 211, an upper connection hole is provided on the upper connection plate 213, a lower connection plate 214 is disposed along the bottom edge of the inner splice plate 211, and a lower connection hole is provided on the lower connection plate 214, and fasteners pass through the upper connection hole of the upper connection plate 213 of the upper inner splice plate 211 and the lower connection hole of the lower connection plate 214 of the lower inner splice plate 211 to connect the upper connection plate 213 of the upper inner splice plate 211 with the lower connection plate 214 of the lower inner splice plate 211.
Referring to fig. 1, when the inner template assembly 21 is sleeved on the corresponding first positioning rods 10, the upper connecting plate 213 and the lower connecting plate 214 of the inner splice plate 211 are sleeved on the corresponding first positioning rods 10.
Referring to fig. 1, preferably, the upper connecting plate 213 and the lower connecting plate 214 are provided with limiting holes adapted to the first positioning rod 10.
Referring to fig. 1, in one embodiment, side ribs 222 are provided, the side ribs 222 being secured to both sides of the outer splice plate 221;
when the outer splice plates 221 are spliced, the side rib plates 222 of two adjacent outer splice plates 221 are oppositely attached and installed and connected, and the side rib plates 222 are positioned on the outer side of the outer template assembly 22 formed by splicing, so that the installation and the disassembly are convenient.
Referring to fig. 1, preferably, the side rib plates 222 are disposed along the side edges of the outer splice plates 221 in a through length manner, and the side rib plate holes are formed in the side rib plates 222, so that the fastener passes through the side rib plate holes of the side rib plates 222 of the adjacent two outer splice plates 221 to realize the installation connection of the adjacent two outer splice plates 221.
Referring to fig. 1, further, the cross section of the outer formwork assembly 22 is square, the angle between one side rib 222 of the outer splice plate 221 located at the corner of the outer formwork assembly 22 and the corresponding outer splice plate 221 is 45 °, the other side rib 222 is perpendicular to the corresponding outer splice plate 221, and the side rib 222 of the outer splice plate 221 located between the corners of the outer formwork assembly 22 is perpendicular to the corresponding outer splice plate 221.
Referring to fig. 1, further, an upper rib 223 and a lower rib 224 are provided, the upper rib 223 is vertically fixed to the top end of the outer splice plate 221, and the lower rib 224 is vertically fixed to the bottom end of the outer splice plate 221;
when the outer splice plates 221 are spliced, the upper rib plates 223 of the upper outer splice plates 221 are oppositely attached to the lower rib plates 224 of the lower outer splice plates 221, and the upper rib plates 223 and the lower rib plates 224 are arranged on the outer sides of the outer template assemblies 22 formed by splicing, so that the outer splice plates are convenient to install and detach.
Referring to fig. 1, preferably, the upper rib plate 223 is disposed along the top edge of the outer splice plate 221, the upper rib plate 223 is provided with an upper rib plate hole, the lower rib plate 224 is disposed along the bottom edge of the outer splice plate 221, and the lower rib plate 224 is provided with a lower rib plate hole, and the upper rib plate hole of the upper rib plate 223 of the upper outer splice plate 221 and the lower rib plate hole of the lower rib plate 224 of the lower outer splice plate 221 are penetrated by a fastener, so that the upper rib plate 223 of the upper outer splice plate 221 is connected with the lower rib plate 224 of the lower outer splice plate 221.
Referring to fig. 1, further, when the outer template assembly 22 is sleeved on the corresponding plurality of second positioning rods, the upper rib 223 and the lower rib 224 of the outer splice plate 221 are sleeved on the corresponding second positioning rods.
Referring to fig. 1, the upper rib 223 and the lower rib 224 are preferably provided with perforations adapted to the second positioning rod.
Referring to fig. 1, in one embodiment, the first positioning rod 10 is provided as a first screw, the stop 40 is provided as a first nut that is threaded onto the corresponding first screw to tighten the inner formwork assembly 21 against the floor concrete structure 50.
Referring to fig. 1, further, a first positioning rod 10 is provided as a first screw;
when installing first locating lever 10 on bottom plate reinforced structure, provide first installation tube, first installation tube top is uncovered and the bottom is sealed, and the inner wall of first installation tube is equipped with the screw thread, installs first installation tube vertically on bottom plate reinforced structure, with the bottom threaded connection of first screw rod on first installation tube.
Referring to fig. 1, the top surface of the first installation tube is preferably flush with the top surface of the floor concrete structure 50 when the floor rebar structure is being poured.
Referring to fig. 1, in one embodiment, the second locating bar is provided as a second threaded rod and the stop 40 is provided as a second nut that is threaded onto the corresponding second threaded rod to tighten the outer formwork assembly 22 against the floor concrete structure 50.
Referring to fig. 1, further, a second positioning rod is provided as a second screw;
when installing the second locating lever on bottom plate steel bar structure, provide the second installation tube, the open and bottom in second installation tube top is sealed, and the inner wall of second installation tube is equipped with the screw thread, installs the second installation tube on bottom plate steel bar structure vertically, with the bottom threaded connection of second screw rod on the second installation tube.
Referring to fig. 1, the top surface of the second installation tube is preferably flush with the top surface of the floor concrete structure 50 when the floor rebar structure is being poured.
Further, after the concrete reaches the design strength, the first screw is removed from the first mounting tube, and the second screw is removed from the second mounting tube.
After the first screw is removed from the first mounting tube and the second screw is removed from the second mounting tube, the first and second mounting tubes are filled with mortar.
In this embodiment, after the concrete reaches the design strength, the first retainer 40 is removed from the first retainer bar 10, the second retainer is removed from the second retainer bar, and the inner and outer formwork assemblies 21 and 22 are removed.
It should be noted that, the structures, proportions, sizes and the like shown in the drawings attached to the present specification are used for understanding and reading only in conjunction with the disclosure of the present specification, and are not intended to limit the applicable limitations of the present invention, so that any modification of the structures, variation of proportions or adjustment of sizes of the structures, proportions and the like should not be construed as essential to the present invention, and should still fall within the scope of the disclosure of the present invention without affecting the efficacy and achievement of the present invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
Claims (10)
1. The construction method of the concrete well in the narrow space is characterized by comprising the following steps of:
binding a bottom plate steel bar structure and a side wall steel bar structure of a concrete well in the excavated foundation pit, and vertically connecting the side wall steel bar structure with the bottom plate steel bar structure;
providing a plurality of first positioning rods, vertically installing the plurality of first positioning rods on the bottom plate steel bar structure corresponding to the design positions of the inner template assembly, and enabling the plurality of first positioning rods to be distributed at intervals and located on the inner side of the side wall steel bar structure;
providing a plurality of second positioning rods, vertically installing the second positioning rods on the bottom plate steel bar structure corresponding to the design positions of the outer template assembly, and enabling the second positioning rods to be distributed at intervals and located on the outer side of the side wall steel bar structure;
pouring concrete to the bottom of the foundation pit to form a bottom plate concrete structure and burying and fixing the bottom plate steel bar structure;
providing an assembled inner template assembly and an assembled outer template assembly, sleeving the inner template assembly on a plurality of corresponding first positioning rods, sleeving the outer template assembly on a plurality of corresponding second positioning rods, arranging the inner template assembly and the outer template assembly on a bottom plate concrete structure, forming pouring spaces among the inner template assembly, the outer template assembly and the bottom plate concrete structure, enabling the top ends of the first positioning rods to protrude out of the inner template assembly to form first limiting ends, and enabling the top ends of the second positioning rods to protrude out of the outer template assembly to form second limiting ends;
providing a first limiting piece, mounting the first limiting piece on the first limiting end, and tightly propping the inner template assembly on the bottom plate concrete structure through the first limiting piece so as to limit the movement of the inner template assembly;
providing a second limiting piece, mounting the second limiting piece on the second limiting end, and tightly propping the outer formwork component on the bottom plate concrete structure through the second limiting piece so as to limit the movement of the outer formwork component; and
and pouring concrete in the pouring space to form a side wall concrete structure and burying and fixing the side wall steel bar structure, so that the side wall concrete structure and the bottom plate concrete structure are connected into a whole to form the concrete well.
2. A method of constructing a concrete well in a confined space as set forth in claim 1 wherein,
when the inner template component and the outer template component are assembled, an inner splice plate and an outer splice plate are provided, a plurality of the inner splice plates are spliced and connected to form an inner template component, and a plurality of the outer splice plates are spliced and connected to form an outer template component.
3. A method of constructing a concrete well in a confined space as claimed in claim 2, wherein,
providing a side connecting plate, and fixedly arranging the side connecting plate on two sides of the inner splice plate;
when the inner splice plates are spliced, the side connecting plates of two adjacent inner splice plates are oppositely attached and are connected in an installation mode, and the side connecting plates are located at the inner sides of the inner template assemblies formed by splicing.
4. A method of constructing a concrete well in a confined space as claimed in claim 3 wherein the cross section of the inner formwork assembly is square, the angle between one side web of the inner splice plates at the corners of the inner formwork assembly and the corresponding inner splice plate being 45 ° and the other side web being perpendicular to the corresponding inner splice plate and the side web of the inner splice plates between the corners of the inner formwork assembly being perpendicular to the corresponding inner splice plate.
5. A method of constructing a concrete well in a confined space as claimed in claim 2, wherein,
providing an upper connecting plate and a lower connecting plate, vertically fixing the upper connecting plate at the top end of the inner splice plate, and vertically fixing the lower connecting plate at the bottom end of the inner splice plate;
when the inner splice plates are spliced, the upper connecting plates of the inner splice plates positioned above are oppositely attached to and are in mounting connection with the lower connecting plates of the inner splice plates positioned below, and the upper connecting plates and the lower connecting plates are positioned on the inner sides of the inner template assemblies formed by splicing.
6. The method for constructing a concrete well in a small space according to claim 5, wherein,
when the inner template component is sleeved on the corresponding first positioning rods, the upper connecting plates and the lower connecting plates of the inner splice plates are sleeved on the corresponding first positioning rods.
7. The method of construction of a concrete well in a confined space of claim 1 wherein the first locating bar provided is a first screw and the first stop provided is a first nut, the first nut being threadably coupled to the corresponding first screw to secure the inner formwork assembly against the floor concrete structure.
8. The method of constructing a concrete well in a confined space of claim 1, wherein the first locating rod provided is a first screw;
when the first positioning rod is installed on the bottom plate reinforcing steel bar structure, a first installation tube is provided, the top end of the first installation tube is open and the bottom end of the first installation tube is closed, threads are arranged on the inner wall of the first installation tube, the first installation tube is vertically installed on the bottom plate reinforcing steel bar structure, and the bottom end of the first screw rod is connected with the first installation tube through threads.
9. The method of constructing a concrete well in a confined space of claim 8 wherein said first screw is removed from said first installation tube after the concrete reaches a design strength.
10. The method of constructing a concrete well in a confined space of claim 1, wherein after the concrete reaches a design strength, removing the first retainer from the first locating bar, removing the second retainer from the second locating bar, and removing the inner and outer formwork assemblies.
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| CN202210398856.3A CN114875973B (en) | 2022-04-15 | 2022-04-15 | Construction method of concrete well in narrow space |
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| CN114875973B true CN114875973B (en) | 2024-03-12 |
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| CN215630145U (en) * | 2021-09-26 | 2022-01-25 | 南京欣瑞工程咨询有限公司 | Cast-in-place well pouring construction template structure |
| CN215671017U (en) * | 2021-09-07 | 2022-01-28 | 宁波建工建乐工程有限公司 | Narrow and small space formwork system of basement outer wall |
| CN216239746U (en) * | 2021-11-09 | 2022-04-08 | 中建一局集团第五建筑有限公司 | Narrow and small space concrete structure template is propped up and is established device |
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2022
- 2022-04-15 CN CN202210398856.3A patent/CN114875973B/en active Active
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| JPH06240698A (en) * | 1993-02-12 | 1994-08-30 | Taisei Corp | Block for bottom form and inverted concrete construction method |
| CN109024875A (en) * | 2018-07-24 | 2018-12-18 | 山东建筑大学 | A kind of assembled integral concrete component and construction method |
| CN112959496A (en) * | 2021-02-03 | 2021-06-15 | 浙江文华建设项目管理有限公司 | Concrete pile construction method with high-efficiency construction |
| CN215671017U (en) * | 2021-09-07 | 2022-01-28 | 宁波建工建乐工程有限公司 | Narrow and small space formwork system of basement outer wall |
| CN215630145U (en) * | 2021-09-26 | 2022-01-25 | 南京欣瑞工程咨询有限公司 | Cast-in-place well pouring construction template structure |
| CN216239746U (en) * | 2021-11-09 | 2022-04-08 | 中建一局集团第五建筑有限公司 | Narrow and small space concrete structure template is propped up and is established device |
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| CN114875973A (en) | 2022-08-09 |
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