CN109706953B - Die for foundation slab of assembled concrete underground building and drawing die construction method - Google Patents
Die for foundation slab of assembled concrete underground building and drawing die construction method Download PDFInfo
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- CN109706953B CN109706953B CN201910051764.6A CN201910051764A CN109706953B CN 109706953 B CN109706953 B CN 109706953B CN 201910051764 A CN201910051764 A CN 201910051764A CN 109706953 B CN109706953 B CN 109706953B
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- concrete
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- foundation slab
- guide rail
- steel
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- 238000010276 construction Methods 0.000 title claims abstract description 40
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 42
- 239000010959 steel Substances 0.000 claims abstract description 42
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000009412 basement excavation Methods 0.000 claims 1
- 239000002002 slurry Substances 0.000 abstract description 2
- 238000011065 in-situ storage Methods 0.000 description 4
- 239000010410 layer Substances 0.000 description 3
- 239000013521 mastic Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Abstract
The die for the foundation slab of the assembled concrete underground building and the drawing die construction method belong to the technical field of building engineering, the foundation slab of the assembled concrete underground building is constructed by adopting a drawing die method, a drawing die platform is a steel die plate capable of being drawn horizontally and moved, the inner contour of the drawing die platform is the same as the outer contour of the foundation slab, and the drawing die platform comprises a concrete hopper, vibrating holes, bearing wheels, guide wheels, a rubber sealing plate, a supporting structure and a forming die plate; the weight of the horizontal drawing die table is transmitted to the guide rail through the bearing wheel, is transmitted to the bearing pile through the guide rail and finally is transmitted to the foundation; the guide wheels are used for ensuring that the travelling route of the horizontal drawing die table is not deviated; the rubber sealing plates clamp the inverted T-shaped steel below the guide rail from two sides, so that the concrete is ensured not to leak slurry at the track position. By adopting the construction method, the construction of the foundation slab of the assembled concrete underground building has the advantages of good quality, high speed and low cost.
Description
Technical Field
The invention belongs to the technical field of constructional engineering, relates to the construction of concrete underground buildings, and in particular relates to a drawing die construction method for an assembled concrete underground building foundation slab.
Background
The existing construction method of the foundation slab of the assembled concrete underground building mainly comprises the following two modes:
the first is a traditional common construction method, similar to the traditional foundation construction method of an assembled concrete single-layer industrial factory building, a mode of formwork supporting, steel bar binding and concrete beating is adopted, an installation groove of an upper vertical component is prepared on a foundation slab of an assembled concrete underground building, and the invention patent application specification CN201810551369.X discloses a semi-prefabricated assembled comprehensive pipe gallery and a construction method, wherein the comprehensive pipe gallery comprises: a cup-shaped groove is arranged on the cast-in-situ formed bottom plate at the position corresponding to the wallboard; the prefabricated pipe gallery section comprises an integrally formed top plate and a plurality of wallboards vertically connected with the top plate, wherein the wallboards are inserted into corresponding cup-shaped grooves, and two adjacent pipe gallery sections are fixedly connected through a cast-in-situ connecting section; the pitch mastic layer is filled in the cup-shaped groove, and the top surface of the pitch mastic layer is at a set distance from the notch of the cup-shaped groove; and pouring a waterproof concrete structure formed in the cup-shaped groove, wherein the waterproof concrete structure is positioned on the asphalt mastic layer and is used for sealing the notch of the cup-shaped groove. The invention adopts the cup groove node structure to connect the cast-in-situ bottom plate and the prefabricated wall plate, avoids the overlap joint and binding construction of the reinforcing steel bars between the prefabricated component and the cast-in-situ component, has simple construction and improves the construction efficiency. However, the method is not innovative, and the construction precision and the appearance quality are not ideal.
Secondly, the construction method of full prefabrication prepares the assembled concrete underground building foundation slab in a factory mode, installs the foundation slab on site, then grouting the bottom of the foundation slab to finish the construction of the foundation slab, and has good construction quality, high precision and clean appearance. However, the method has low efficiency and high manufacturing cost, and the grouting quality is difficult to ensure.
The existing construction method of the foundation slab of the assembled concrete underground building has the problems of unsatisfactory construction precision and appearance quality, low efficiency, high manufacturing cost, difficult quality assurance and the like, and a new technical scheme needs to be provided.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the die and the drawing die construction method for the foundation slab of the assembled concrete underground building are provided, and the foundation slab of the assembled concrete underground building is constructed by adopting a flat drawing die method, so that the construction quality is good, the speed is high and the cost is low; the method is particularly suitable for construction and construction of the bottom plate of the assembled concrete underground building, including construction of projects such as concrete underground pipe gallery, subway station line, tunnel and the like.
The die for the foundation slab of the assembled concrete underground building comprises a guide rail and a horizontal drawing die platform;
the guide rail is a steel pipe, and inverted T-shaped steel is arranged at the lower part of the steel pipe;
the horizontal drawing die table comprises a concrete hopper, vibrating holes, bearing wheels, guide wheels, a rubber sealing plate, a supporting structure and a forming die plate, wherein the inner contour of the forming die plate is consistent with the outer contour of the foundation slab; the concrete hopper is arranged at the highest point of the design height of the foundation slab; the vibrating holes are arranged in more than two and are positioned between the concrete hoppers to penetrate through the forming templates; the bearing wheels are arranged at the upper part of the guide rail; the guide wheels are arranged on two sides of the guide rail; the rubber sealing plate is arranged at the bottom of the horizontal drawing die table penetrated by the inverted T-shaped steel, and the rubber sealing plate clamps the inverted T-shaped steel arranged at the lower part of the guide rail from two sides.
The drawing die construction method for the foundation slab of the assembled concrete underground building, which is applied to the die for the foundation slab of the assembled concrete underground building, comprises the following steps in sequence;
step one, preparation for construction
After the foundation pit is excavated according to the conventional means, constructing a bearing pile and pouring a concrete cushion according to the design requirements, wherein the bearing pile comprises a steel pile and a concrete pile, a connecting steel plate is arranged at the pile top of the bearing pile, a guide rail is arranged at the top of the bearing pile by adopting a welding or bolting method, and the steel bars of the foundation slab of the assembled concrete underground building are bound;
step two, preparing and installing a horizontal drawing die table
The support structure of the horizontal drawing die table, the forming template and the concrete hopper are prepared from profile steel and a steel plate, more than two vibrating holes are reserved between the concrete hoppers, and the vibrating holes are prepared from steel pipes; the installation sequence of the horizontal drawing die table is that bearing wheels are installed on the upper part of a guide rail, guide wheels are installed on two sides of the guide rail, and rubber sealing plates clamp inverted T-shaped steel arranged on the lower part of the guide rail from two sides;
step three, constructing assembled concrete underground building foundation slab by horizontal drawing die method
Pouring the concrete of the foundation slab of the assembled concrete underground building through a concrete hopper, wherein the slump of the concrete is 0.5-10 mm, and vibrating and compacting the concrete through the concrete hopper and the vibrating holes; translating the horizontal drawing die table along the guide rail, and pouring the concrete of the foundation slab of the assembled concrete underground building of the next working section until all concrete pouring is completed;
step four, removing the horizontal drawing die table
And (3) after all concrete pouring in the step three is completed, removing the horizontal drawing die table, and cleaning for later use.
Through the design scheme, the invention has the following beneficial effects: the die and the drawing die construction method are used for constructing the foundation slab of the assembled concrete underground building, the method of adopting a flat drawing die is adopted for constructing the foundation slab of the assembled concrete underground building, the flat drawing die table is a steel die plate capable of being horizontally drawn and moved, the inner contour of the flat drawing die table is the same as the outer contour of the foundation slab, and the die comprises a concrete hopper, vibrating holes, bearing wheels, guide wheels, a rubber sealing plate, a supporting structure and a forming die plate; the weight of the horizontal drawing die table is transmitted to the guide rail through the bearing wheel, is transmitted to the bearing pile through the guide rail and finally is transmitted to the foundation; the guide wheels are used for ensuring that the travelling route of the horizontal drawing die table is not deviated; the rubber sealing plates clamp the inverted T-shaped steel below the guide rail from two sides, so that the concrete is ensured not to leak slurry at the track position; by adopting the construction method, the construction of the foundation slab of the assembled concrete underground building has the advantages of good quality, high speed and low cost.
Drawings
The invention is further described with reference to the drawings and detailed description which follow:
fig. 1 is a schematic cross-sectional view of a load-bearing pile arrangement according to the present invention.
Fig. 2 is a schematic cross-sectional view of a load bearing pile and rail arrangement of the present invention.
FIG. 3 is a schematic cross-sectional view of the concrete hopper and vibrating aperture location of the flat drawing bench of the present invention.
Fig. 4 is an enlarged partial schematic view of a cross-section of an arrangement of the load bearing wheel, guide wheel and rubber seal plate of the present invention.
FIG. 5 is a schematic longitudinal section of the horizontal drawing die table of the present invention.
Fig. 6 is an enlarged partial schematic view of a longitudinal section of the bearing and guide wheel arrangement of the present invention. .
FIG. 7 is a schematic cross-sectional view of a flat drawing die table according to the present invention.
FIG. 8 is a schematic cross-sectional view of the foundation slab of the present invention after construction.
FIG. 9 is a schematic cross-sectional view of the assembled upper structure of the foundation slab of the present invention.
In the figure, the pile is 1-bearing pile, 2-guide rail, 3-flat drawing die table, 4-concrete hopper, 5-vibrating hole, 6-bearing wheel, 7-guide wheel, 8-rubber sealing plate and 9-foundation slab.
Description of the embodiments
A mould for assembled concrete underground construction foundation slab, characterized by: as shown in fig. 1 to 7, the slide rail comprises a guide rail 2 and a flat drawing die table 3;
the guide rail 2 is made of steel pipes, and the bottom of the guide rail is welded with inverted T-shaped steel;
the horizontal drawing die table 3 is a steel die plate capable of horizontally drawing and moving, and comprises a concrete hopper 4, a vibrating hole 5, a bearing wheel 6, a guide wheel 7, a rubber sealing plate 8, a supporting structure and a forming die plate thereof, wherein the inner contours of the supporting structure and the forming die plate are consistent with the outer contour of a foundation slab 9; the concrete hopper 4 is used for pouring concrete to the foundation slab 9 and is arranged at a position corresponding to the highest point of the foundation slab 9; the vibrating holes 5 are positioned between the concrete hoppers 4 and are made of steel pipes, and two or more than two vibrating holes are uniformly distributed; the bearing wheels 6 are arranged on the guide rail 2 and are made of steel materials and are used for transmitting the gravity of the horizontal drawing die table 3 to the guide rail 2 and supporting the horizontal drawing die table 3; the guide wheels 7 are arranged on two sides of the guide rail 2 and are made of steel materials, and play a role in horizontal positioning and translational guiding when the die platform is translated; the rubber sealing plate 8 is prepared from a rubber plate, is arranged on a template of the horizontal drawing die table 3, clamps inverted T-shaped steel below the guide rail 2 from two sides, and plays a role in sealing during horizontal drawing movement;
the foundation slab 9 is a concrete slab which is prepared by adopting the horizontal drawing die table 3 and is used for an assembled concrete underground building.
A drawing die construction method for an assembled concrete underground building foundation slab is characterized in that: comprising the following steps, which are sequentially carried out,
step one, preparation for construction
After the foundation pit is excavated according to the conventional means, as shown in fig. 1 and 2, constructing a bearing pile 1 and pouring a concrete cushion according to the design requirements, wherein the bearing pile 1 comprises a profile steel pile and a concrete pile, the pile top of the bearing pile 1 is provided with a connecting steel plate, the top of the bearing pile 1 is provided with a guide rail 2 in a welding or bolt connection mode, and the steel bars of an assembled concrete underground building foundation slab 9 are bound;
step two, preparing and installing a horizontal drawing die table 3
As shown in fig. 3 to 7, the support structure and the forming template of the horizontal drawing die table 3 are prepared by adopting profile steel and steel plates, and the horizontal drawing die table further comprises a concrete hopper 4 for pouring concrete, a vibrating hole 5 for vibrating the concrete, a bearing wheel 6, a guide wheel 7 and a rubber sealing plate 8; after the reinforcement of the foundation slab 9 of the assembled concrete underground building prepared by the construction in the step one is completed, installing a horizontal drawing die table 3, placing a bearing wheel 6 on a guide rail 2, placing guide wheels 7 on two sides of the guide rail 2, and clamping inverted T-shaped steel below the guide rail 2 by a rubber sealing plate 8 from two sides;
step three, constructing assembled concrete underground building foundation slab by horizontal drawing die method
As shown in fig. 3 to 7, after the horizontal drawing bench 3 in the second step is installed, pouring the assembled concrete underground building foundation slab 9 concrete through the concrete hopper 4, wherein the slump of the concrete is 0.5mm to 10mm, and vibrating and compacting the concrete through the concrete hopper 4 and the vibrating holes 5; translating the horizontal drawing die table 3 along the guide rail 2, and pouring the concrete of the foundation slab 9 of the assembled concrete underground building of the next working section until the whole concrete pouring is completed;
step four, removing the horizontal drawing die table 3
As shown in fig. 8, after all concrete pouring is completed, the horizontal drawing die table 3 is removed and cleaned for later use.
To this end, as shown in fig. 8, the drawing die construction method for the foundation slab of the fabricated concrete underground building is completed; after the foundation bed 9 reaches the design strength, as shown in fig. 9, the structure of the upper part of the foundation bed 9 of the fabricated concrete underground building can be installed.
Claims (2)
1. A mould for assembled concrete underground construction foundation slab, characterized by: comprises a guide rail (2) and a flat drawing die table (3);
the guide rail (2) is a steel pipe, and inverted T-shaped steel is arranged at the lower part of the steel pipe;
the horizontal drawing die table (3) comprises a concrete hopper (4), vibrating holes (5), bearing wheels (6), guide wheels (7), a rubber sealing plate (8), a supporting structure and a forming die plate, wherein the inner contour of the forming die plate is consistent with the outer contour of the foundation slab (9); the concrete hopper (4) is arranged at the highest point of the design height of the foundation slab (9); the vibrating holes (5) are arranged in more than two and are positioned between the concrete hoppers (4) to penetrate through the forming templates; the bearing wheels (6) are arranged at the upper part of the guide rail (2); the guide wheels (7) are arranged on two sides of the guide rail (2); the rubber sealing plate (8) is arranged at the bottom of the horizontal drawing die table (3) penetrated by the inverted T-shaped steel, and the rubber sealing plate (8) clamps the inverted T-shaped steel arranged at the lower part of the guide rail from two sides.
2. A drawing die construction method for an assembled concrete underground building foundation slab is characterized in that: use of the mould for the foundation slab of a fabricated concrete underground construction of claim 1, comprising the following steps, and the following steps are performed in sequence;
step one, preparation for construction
After excavation of a foundation pit is completed according to conventional means, constructing a bearing pile (1) and pouring a concrete cushion according to design requirements, wherein the bearing pile (1) comprises a profile steel pile and a concrete pile, a connecting steel plate is arranged at the pile top of the bearing pile (1), a guide rail (2) is arranged at the top of the bearing pile (1) by adopting a welding or bolting method, and steel bars of an assembled concrete underground building foundation slab (9) are bound;
step two, preparing and installing a flat drawing die table (3)
The support structure of the horizontal drawing die table (3), the forming die plate and the concrete hopper (4) are prepared by adopting profile steel and steel plates, more than two vibrating holes (5) are reserved between the concrete hoppers (4), and the vibrating holes (5) are prepared by adopting steel pipes; the installation sequence of the horizontal drawing die table (3) is that a bearing wheel (6) is installed on the upper part of the guide rail (2), guide wheels (7) are installed on two sides of the guide rail (2), and rubber sealing plates (8) clamp inverted T-shaped steel arranged on the lower part of the guide rail (2) from two sides;
step three, constructing assembled concrete underground building foundation slab by horizontal drawing die method
Pouring the concrete of an assembled concrete underground building foundation slab (9) through a concrete hopper (4), wherein the slump of the concrete is 0.5-10 mm, and vibrating and compacting the concrete through the concrete hopper (4) and a vibrating hole (5); translating the horizontal drawing die table (3) along the guide rail (2), and pouring the concrete of the foundation slab (9) of the assembled concrete underground building of the next working section until all concrete pouring is completed;
step four, removing the flat drawing bench (3)
And (3) removing the horizontal drawing die table (3) after all concrete in the step (III) is poured, and cleaning for later use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910051764.6A CN109706953B (en) | 2019-01-21 | 2019-01-21 | Die for foundation slab of assembled concrete underground building and drawing die construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910051764.6A CN109706953B (en) | 2019-01-21 | 2019-01-21 | Die for foundation slab of assembled concrete underground building and drawing die construction method |
Publications (2)
| Publication Number | Publication Date |
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| CN109706953A CN109706953A (en) | 2019-05-03 |
| CN109706953B true CN109706953B (en) | 2023-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910051764.6A Active CN109706953B (en) | 2019-01-21 | 2019-01-21 | Die for foundation slab of assembled concrete underground building and drawing die construction method |
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|---|---|
| CN109706953A (en) | 2019-05-03 |
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Effective date of registration: 20240108 Address after: 831100 Shop 2-3, Commercial Building 2, Hope Home Community, Intersection of Mancheng Road and Guihua Road, Jimusar County, Changji Hui Autonomous Prefecture, Xinjiang Uygur Autonomous Region Patentee after: Xinjiang Ronghuida Construction Engineering Co.,Ltd. Address before: 130118 No. 5088 Xincheng Street, Changchun City, Jilin Province Patentee before: JILIN JIANZHU University |