CN111719577B - Construction method of building foundation - Google Patents
Construction method of building foundation Download PDFInfo
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- CN111719577B CN111719577B CN202010443676.3A CN202010443676A CN111719577B CN 111719577 B CN111719577 B CN 111719577B CN 202010443676 A CN202010443676 A CN 202010443676A CN 111719577 B CN111719577 B CN 111719577B
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- foundation
- independent
- bottom position
- top plate
- layer
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
Abstract
The invention discloses a construction method of a building foundation, which comprises the following steps: pouring a foundation slab cushion layer in the underground building foundation; building a brick moulding bed on the foundation bottom plate cushion layer in the underground building foundation to the bottom position of the top plate or the bottom position of a connecting beam below the top plate; constructing waterproof layers on the foundation slab cushion layer and the inner wall of the brick moulding bed; binding reinforcing steel bars of an independent foundation at the bottom position in the underground building foundation, and binding the reinforcing steel bars of a plurality of independent columns at the positions above the independent foundation to the bottom position of the top plate or the bottom position of the connecting beam; and filling a filling layer to the bottom of the top plate and the bottom of the connecting beam in a gap formed by the independent foundation and the independent columns. According to the invention, the building height of the brick moulding bed is increased, and the light material is filled between the independent foundation and the waterproof plate, so that the waterproof layer is closed outside the foundation and is constructed in advance, the independent foundation, the connecting beam and the top plate can be ensured to be poured at one time, and the construction processes are reduced.
Description
Technical Field
The invention relates to the technical field of building foundations, in particular to a construction method of a building foundation.
Background
At present, the foundation structure of buildings is mainly provided with an independent foundation and a raft foundation with basement function, and during the construction of the independent foundation, the bottom of a first layer of waterproof board needs to be waterproof. For the building foundation: when the independent foundation, the connecting beam and the waterproof board are higher than the top of the independent foundation, according to the conventional requirements, as shown in the figure 1-6, the process comprises the steps of constructing the brick bed 1 and the side waterproof layer 2 on the independent foundation → pouring the concrete structures of the independent foundation 3 and the independent column 4 → the vertical waterproof layer 2 on the top surface of the independent foundation 3 and the independent column 4 → backfill 5 and the cushion layer 6 construction → construction of the waterproof layer 2 at the bottom of the board → construction of the waterproof board 7 and the connecting beam. The construction process is multiple, the period is long, and the construction difficulty is large. The invention can overcome the defects of the prior art, and solves the problems that the waterproof layer is closed outside the foundation by filling the light material between the foundation and the waterproof plate, the construction is carried out in advance, the independent foundation, the connecting beam and the waterproof plate are poured at one time, and the construction procedures are greatly reduced. The popularization is larger.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a construction method of a building foundation, which reduces the construction procedures.
In order to achieve the purpose, the invention adopts the technical scheme that: a construction method of a building foundation comprises the following steps:
pouring a foundation slab cushion layer in the underground building foundation;
building a brick moulding bed on the foundation bottom plate cushion layer in the underground building foundation to the bottom position of the top plate or the bottom position of a connecting beam below the top plate;
constructing waterproof layers on the foundation slab cushion layer and the inner wall of the brick moulding bed;
binding reinforcing steel bars of an independent foundation at the bottom position in the underground building foundation, and binding the reinforcing steel bars of a plurality of independent columns at the positions above the independent foundation to the bottom position of the top plate or the bottom position of the connecting beam;
filling a filling layer to the bottom of the top plate and the bottom of the connecting beam in a gap formed by the independent foundation and the independent column;
binding the reinforcing steel bars of the connecting beams in the gaps among the filling layers, and binding the reinforcing steel bars of the top plate above the connecting beams;
and pouring the concrete structure of the independent foundation, the independent columns, the connecting beams and the waterproof boards at one time.
Optionally, the coupling beam structure is in a shape of Chinese character jing.
Optionally, the filler layer is an extruded polystyrene board.
Optionally, the step of applying a waterproof layer comprises the following steps:
cleaning the foundation slab cushion layer and the inner wall of the brick moulding bed;
laying waterproof rolls;
and pouring a concrete waterproof protective layer on the surface of the waterproof roll.
Optionally, the upper surface and the lower surface of the filling layer are both provided with a protection plate.
Optionally, the protection plate includes a first steel bar protection plate and a second steel bar protection plate, and in the step of filling the filling layer, the method includes the following steps:
paving first steel bar protection plates on the surfaces of the independent foundation and the independent columns;
filling a filling layer to the bottom of the top plate and the bottom of the connecting beam in a gap formed by the independent foundation and the independent column;
and laying a second steel bar protection plate on the upper surface of the filling layer and at the gap.
Due to the adoption of the technical scheme, the invention has the following beneficial effects: the building height of the brick moulding bed is increased, and a light material is filled between the independent foundation and the waterproof plate, so that the problem that the waterproof layer is closed outside the foundation is solved, construction is performed in advance, the independent foundation, the connecting beam and the top plate can be ensured to be poured at one time, and the construction processes are reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 shows a schematic structural diagram of a prior art after waterproof construction steps are performed on the bottom surface and the side surface of an independent foundation.
Fig. 2 shows a schematic structural diagram after the construction steps of the independent foundation and the independent column concrete structure are implemented in the prior art.
Fig. 3 shows a schematic structural diagram of a prior art after waterproof steps of the independent foundation top surface and the independent columns are implemented.
Fig. 4 is a schematic structural diagram illustrating a backfill and bedding construction process in the prior art.
Fig. 5 shows a schematic structural diagram after a step of constructing a waterproof layer on the bottom of a board in the prior art.
Fig. 6 shows a schematic structural diagram after the steps of waterproof board and connecting beam construction are performed in the prior art.
Fig. 7 is a schematic cross-sectional view illustrating a third step performed in the embodiment of the present invention.
Fig. 8 is a schematic cross-sectional view illustrating a fifth step performed in the embodiment of the present invention.
Fig. 9 is a schematic cross-sectional view illustrating a seventh implementation of step seven in the embodiment of the present invention.
Fig. 10 is a schematic perspective view showing the overall structure after the construction is completed in the embodiment of the invention.
Fig. 11 shows a schematic sectional structure view along a-a of fig. 10.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
The invention is described in further detail below with reference to the figures and specific embodiments.
In the prior art, the height of a masonry brick moulding bed on a foundation cushion layer is low, construction needs to be carried out for multiple times during subsequent pouring and waterproof layer installation, and construction efficiency is low.
As shown in fig. 7 to 11, the construction method of the building foundation according to the embodiment of the present invention includes the steps of:
the method comprises the following steps: and pouring a foundation slab cushion layer 10 in the underground building foundation.
Step two: and building the brick moulding bed 11 on the foundation bottom plate cushion layer 10 in the underground building foundation to the bottom of the top plate 17 or the bottom of the connecting beam 16 below the top plate 17.
Specifically, the brick molding bed 11 on the foundation slab bedding 10 located right below the connecting beam 16 is built to the bottom position of the connecting beam 16, and the brick molding bed 11 located right below the top plate 17 is built to the bottom position of the top plate 17, as shown in fig. 7 and 8.
Step three: and a waterproof layer 12 is applied to the inner walls of the foundation slab bedding layer 10 and the brick moulding bed 11.
The concrete waterproof structure is characterized in that the surfaces of the foundation slab cushion layer 10 and the brick bed film 11 are cleaned before the waterproof layer 12 is applied, after the surfaces are cleaned, the modified asphalt waterproof roll with the thickness of 3+3mm is laid on the upper surface of the foundation slab cushion layer 10 and the inner wall of the brick bed film 11, meanwhile, the waterproof roll is also laid on the soil body structure of the lower surface of the top plate 17, and after the laying is finished, a concrete waterproof protective layer is additionally arranged on the surface of the asphalt waterproof roll so as to avoid the influence on the waterproof effect due to the damage of the waterproof layer 12 during subsequent steel bar binding.
Step four: and (3) binding the steel bars of the independent foundation 13 at the bottom position in the underground building foundation, and binding the steel bars of the independent columns 14 at the upper position of the independent foundation 13 to the bottom position of the top plate 17 or the bottom position of the connecting beam 16.
Step five: filling a filling layer 15 into the gap formed by the independent foundation 13 and the independent column 14 to the bottom position of the top plate 17 and the bottom position of the connecting beam 16.
Specifically, the space directly below the top plate 17 is filled with the filling layer 15 to the bottom position of the top plate 17, and the space directly below the connecting beam 16 is filled with the filling layer 15 to the bottom position of the top plate 17.
In this embodiment, the filling layer 15 is an extruded polystyrene board, and a protective layer of reinforcing steel bars (not shown) is disposed on the upper surface of the independent foundation 13 before the extruded polystyrene board is filled in the filling layer, so as to facilitate the installation of the extruded polystyrene board.
Specifically, first steel bar protection plates are laid on the surfaces of the independent foundation 13 and the independent columns 14, filling layers 15 are filled in gaps formed by the independent foundation 13 and the independent columns 14, and when the first steel bar protection plates are laid to a required height, second steel bar protection plates are laid on the upper surfaces of the filling layers 15 and gaps between the filling layers 15, so that the laid filling layers 15 are prevented from being damaged.
Step six: and binding the reinforcing steel bars of the connecting beams 16 in the gaps among the filling layers 15, and binding the reinforcing steel bars of the top plate 17 above the connecting beams 16.
Step seven: after the steel bars are bound, the concrete structure of the independent foundation 13, the independent columns 14, the connecting beams 16 and the top plate 17 is poured at one time, as shown in fig. 9.
In this embodiment, the coupling beam 16 is in a # -shaped structure.
According to the invention, the inner cavities are formed on the base bottom plate cushion layer, the brick bed-moulds, the independent foundation, the connecting beam and the top plate by heightening the brick bed-moulds, and the extruded polystyrene board is embedded in the inner cavities, so that the top plate, the connecting beam, the independent foundation and the independent column can be integrally poured, and the construction procedures are reduced.
It should be noted that the structures, ratios, sizes, and the like shown in the drawings attached to the present specification are only used for matching the disclosure of the present specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions of the present invention, so that the present invention has no technical essence, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. A construction method of a building foundation is characterized by comprising the following steps:
pouring a foundation slab cushion layer in the underground building foundation;
building a brick moulding bed on the foundation bottom plate cushion layer in the underground building foundation to the bottom position of the top plate or the bottom position of a connecting beam below the top plate;
constructing waterproof layers on the foundation slab cushion layer and the inner wall of the brick moulding bed;
binding reinforcing steel bars of an independent foundation at the bottom position in the underground building foundation, and binding the reinforcing steel bars of a plurality of independent columns at the positions above the independent foundation to the bottom position of the top plate or the bottom position of the connecting beam;
filling a filling layer to the bottom position of the top plate and the bottom position of the coupling beam in a gap formed by the independent foundation and the independent column, wherein the upper surface and the lower surface of the filling layer are respectively provided with a protective plate, the protective plates comprise a first steel bar protective plate and a second steel bar protective plate, the first steel bar protective plate is laid on the surfaces of the independent foundation and the independent column before the filling layer is filled to the bottom position of the top plate and the bottom position of the coupling beam in the gap formed by the independent foundation and the independent column, and the second steel bar protective plate is laid on the upper surface and the gap of the filling layer after the filling layer is filled to the bottom position of the top plate and the bottom position of the coupling beam in the gap formed by the independent foundation and the independent column;
binding the reinforcing steel bars of the connecting beams in the gaps among the filling layers, and binding the reinforcing steel bars of the top plate above the connecting beams;
and pouring the concrete structure of the independent foundation, the independent columns, the connecting beams and the top plate at one time.
2. A method of constructing a building foundation as claimed in claim 1 wherein said coupling beam structure is of a cross-shape.
3. The method of constructing a building foundation of claim 1 wherein said fill layer is extruded polystyrene board.
4. The construction method of a building foundation according to claim 1, wherein the step of applying a waterproof layer comprises the steps of:
cleaning the foundation slab cushion layer and the inner wall of the brick moulding bed;
laying waterproof rolls;
and pouring a concrete waterproof protective layer on the surface of the waterproof roll.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010443676.3A CN111719577B (en) | 2020-05-22 | 2020-05-22 | Construction method of building foundation |
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| CN202010443676.3A CN111719577B (en) | 2020-05-22 | 2020-05-22 | Construction method of building foundation |
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| CN111719577A CN111719577A (en) | 2020-09-29 |
| CN111719577B true CN111719577B (en) | 2021-11-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114108671A (en) * | 2021-10-29 | 2022-03-01 | 上海建工七建集团有限公司 | Construction method of shallow foundation |
| CN114000529A (en) * | 2021-11-16 | 2022-02-01 | 中铁十二局集团有限公司 | Underground expanded foundation and connecting beam integrated brick forming die and wood die combined construction method |
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| KR20000027951A (en) * | 1998-10-30 | 2000-05-15 | 이정수 | Filling material of open trench for protecting propagation of ground vibration using composite materials consisted of soft and hard materials |
| CN103174155A (en) * | 2013-03-26 | 2013-06-26 | 中建保华建筑有限责任公司 | Reverse construction method and construction steel support of erecting steel column and pouring concrete foundation in sequential mode |
| CN105951842A (en) * | 2016-06-03 | 2016-09-21 | 宁夏建工集团有限公司 | Raft lower reversed beam polystyrene board caul construction method |
| CN106120872A (en) * | 2016-04-05 | 2016-11-16 | 中冶天工集团天津有限公司 | A kind of tower crane foundation is combined the construction method of antiseep with basement bottom board |
| CN110761311A (en) * | 2019-10-09 | 2020-02-07 | 北京市第三建筑工程有限公司 | Heat-insulation pasting structure of heat-insulation bridge of independent foundation of ultra-low energy consumption building and construction method |
| CN210117724U (en) * | 2019-05-20 | 2020-02-28 | 中建二局第三建筑工程有限公司 | Garage foundation structure |
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2020
- 2020-05-22 CN CN202010443676.3A patent/CN111719577B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000027951A (en) * | 1998-10-30 | 2000-05-15 | 이정수 | Filling material of open trench for protecting propagation of ground vibration using composite materials consisted of soft and hard materials |
| CN103174155A (en) * | 2013-03-26 | 2013-06-26 | 中建保华建筑有限责任公司 | Reverse construction method and construction steel support of erecting steel column and pouring concrete foundation in sequential mode |
| CN106120872A (en) * | 2016-04-05 | 2016-11-16 | 中冶天工集团天津有限公司 | A kind of tower crane foundation is combined the construction method of antiseep with basement bottom board |
| CN105951842A (en) * | 2016-06-03 | 2016-09-21 | 宁夏建工集团有限公司 | Raft lower reversed beam polystyrene board caul construction method |
| CN210117724U (en) * | 2019-05-20 | 2020-02-28 | 中建二局第三建筑工程有限公司 | Garage foundation structure |
| CN110761311A (en) * | 2019-10-09 | 2020-02-07 | 北京市第三建筑工程有限公司 | Heat-insulation pasting structure of heat-insulation bridge of independent foundation of ultra-low energy consumption building and construction method |
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| CN111719577A (en) | 2020-09-29 |
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