CN219508583U - Combined tire mold structure - Google Patents

Abstract

The utility model relates to the field of construction of foundation pits of basements in constructional engineering, in particular to a pit-in-pit combined type moulding bed structure applied to a foundation pit. The utility model can replace the traditional brick moulding bed, reduce the construction steps, reduce the manpower investment, save the painting maintenance step after the brick moulding bed is constructed, and accord with the green construction concept.

Description

Combined tire mold structure

Technical Field

The utility model belongs to the field of foundation pit construction of building engineering basements, and particularly relates to a pit-in-pit combined type moulding bed structure technology applied to a foundation pit.

Background

Along with the continuous development of the building industry, the excavation depth of a building basement is deeper and deeper, particularly, the pit position in a pit is deeper, the pit brick moulding bed in a foundation pit is difficult to construct, the brick moulding bed is built by adopting traditional bricks, the procedures are more, the period is long, a large amount of manpower is required for building the brick moulding bed, and the built brick moulding bed can be subjected to subsequent steps of construction only through painting maintenance.

Aiming at the problems, the utility model provides a novel tire mold structure, and the structure adopts the prefabricated plate to replace the traditional brick tire mold, so that the painting step can be omitted, and the green construction concept of ensuring the quality and saving the materials is realized.

Disclosure of Invention

The main technical problem to be solved by the utility model is to overcome the defects in the prior art, and provide the pit-in-pit moulding bed combined structure in the foundation pit, which is time-saving and labor-saving in the construction process, and because the prefabricated plates are spliced and formed to be flat in surface, a waterproof layer can be directly paved without painting, thereby realizing the green construction concept.

The utility model relates to a combined type tire mold structure, which comprises a cushion layer arranged at the bottom of a pit in a pit and a tire mold assembled on the cushion layer, wherein the tire mold comprises a plurality of precast slabs, connecting pieces for connecting the precast slabs and a supporting device assembled in the tire mold.

The precast slab provided by the utility model comprises a concrete main body and reinforcing steel meshes in the concrete main body, wherein the side end of the precast slab is provided with a connecting part for connecting with an adjacent precast slab.

Further, the connecting portion comprises connecting ports and connecting bars, the connecting ports of the adjacent precast slabs are matched with each other, and two ends of the connecting piece are connected with the connecting bars of the two adjacent precast slabs respectively.

Further, the connecting steel bar comprises an embedded part and an extending part which are connected with each other, the embedded part is embedded in the precast concrete main body, the extending part extends out of the front side surface of the precast slab by 90-110mm, and the extending part is connected with the connecting piece.

Further, the precast slab further comprises a lifting hook arranged on the top surface, the lifting hook is a U-shaped steel bar piece, and two end feet of the U-shaped steel bar piece are pre-buried in the concrete main body of the precast slab.

Further, the reinforcing mesh comprises a first reinforcing mesh and a second reinforcing mesh which are distributed in the concrete body up and down.

Further, the connecting piece is made of round steel with the diameter not smaller than 20 mm.

Further, the supporting device is built by adopting a steel pipe supporting frame combination.

The combined tire mold structure has the following gain effects:

(1) The combined type jig structure adopts the prefabricated plate to replace the traditional brick jig, the construction period of the traditional brick jig is long, a great amount of manpower is required to be input for bricking, and the prefabricated plate is adopted to replace the traditional brick jig, so that the construction steps are reduced, the construction time is shortened, the manpower input is reduced, and the construction efficiency is improved;

(2) The combined type tire mold structure adopts the prefabricated plate to replace the traditional brick tire mold, the traditional brick tire mold can be paved with a waterproof layer after the brick tire mold is constructed and maintained by painting, the prefabricated plate is adopted to replace the traditional brick tire mold, the painting maintenance in the construction process is omitted, the construction period is shortened, the painting pollution environment is avoided, and the environment-friendly construction concept is met.

(3) The combined type tire mold structure combines the tire molds by adopting a method of combining precast slabs, and can customize the tire molds according to the pre-measured pits in different shapes and sizes, thereby avoiding wasting materials.

(4) The combined type forming die structure is formed by pouring reinforced mesh and concrete, and a lifting hook is arranged on the top surface of a poured precast slab, so that the combined type forming die structure can be directly lifted by machinery and is convenient to construct.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic view of a combined tire mold according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a tire mold elevation of a combined tire mold structure according to an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of a tire mold of a combined tire mold structure according to an embodiment of the present utility model;

FIG. 4 is a schematic view showing the internal structure of a prefabricated panel of a combined tire mold structure according to an embodiment of the present utility model;

the reference numerals in the figures illustrate:

1. a cushion layer; 2. a prefabricated plate; 3. a lifting hook; 4. a connection port; 5. connecting steel bars; 51. an extension; 52. a pre-buried part; 6. a connecting piece; 7. reinforcing steel bar meshes; 71. a first reinforcing mesh; 72. a second reinforcing mesh; 8. and a supporting device.

Detailed Description

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. Unless defined otherwise, all terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model pertains. It will be further understood that the terms used in the specification should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and this disclosure. The present disclosure will be considered an embodiment of the utility model and is not intended to limit the utility model to the particular embodiment.

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

As shown in fig. 1, the present embodiment is a combined tire mold structure applied to a pit in a foundation pit, the tire mold structure comprising a cushion layer 1 placed on a bottom layer, a tire mold placed on the cushion layer 1, and a supporting device 8.

In the embodiment of the utility model, the combined tire mold structure is assembled on the pit inner cushion layer 1 in the pit, the tire mold structure needs to be flat and has enough strength at the same time, the cushion layer 1 is poured by concrete with the strength not lower than C15, and the thicknesses of the tire mold, the protective layer and the waterproof layer need to be considered when the cushion layer 1 is poured, so that the cushion layer 1 is expanded by 100-200mm relative to the size of the tire mold.

It should be noted that, the elevation of the cushion layer 1 needs to be determined in the pouring process of the cushion layer 1, when the cushion layer 1 is used for pouring concrete, the pouring process of the concrete needs to be performed manually and uniformly while pouring, the concrete is guaranteed to be uniformly poured in the template, the virtual paving thickness of the poured concrete is guaranteed to be slightly higher than the elevation of the cushion layer 1 during pouring, air bubbles can be generated in the concrete during pouring, the air bubbles are eliminated by using a surface vibrator after the pouring is finished, the vibration is continued until the surface of the concrete is completely flooded, the interior of the concrete is free of air bubbles, the concrete cushion layer is not sunk, and after the vibration is compact, the concrete cushion layer is scraped by a scraping bar.

As shown in fig. 1-2, the matrix comprises a number of prefabricated panels 2 and a number of connectors 6.

In the embodiment of the utility model, the thickness of the precast slab 2 is 200mm, and the length and width of the precast slab 2 are calculated and selected according to the pit depth in the pit.

In the embodiment of the utility model, a connecting port 4 is reserved at the side end of the precast slab 2, the connecting port 4 is an L-shaped tongue-and-groove, the tongue-and-groove comprises a tenon and a groove, and the tenon can be spliced and fixed with the groove of the adjacent precast slab.

It should be noted that the grooves at the two side ends of the prefabricated plates 2 are in opposite directions, and the grooves and tenons of the adjacent prefabricated plates 2 are mutually spliced, and the tenons at the side ends of the prefabricated plates 2 are clamped in the grooves of the adjacent prefabricated plates to fix the adjacent prefabricated plates 2.

The precast slab 2 needs to arrange inside steel bar structure before carrying out concrete placement, as shown in fig. 3, 4, precast slab 2 is pre-buried in the inside reinforcing bar net piece 7 of being precast slab atress reinforcing bar of concrete main part, pre-buried in the top surface of concrete main part be used for precast slab hoist and mount's lifting hook 3, pre-buried in the inside and in the positive side surface of concrete main part expose the connecting reinforcement 5 of being connected with connecting piece 6 cooperation.

As shown in fig. 3, the reinforcing mesh 7 includes a first reinforcing mesh 71 and a second reinforcing mesh 72 which are vertically distributed in the concrete body.

In one possible method, a mesh sheet of reinforcing bars having a diameter of 8mm and a welding interval of 150mm is used as the mesh sheet 7 of reinforcing bars inside the prefabricated panel 2. The second reinforcing steel bar net piece 71 is arranged on the lower layer of the template, supporting steel bars are welded on the upper layer of the second reinforcing steel bar net piece, and the first reinforcing steel bar net piece 71 is welded on the upper layer of the supporting steel bars, so that the main body reinforcing steel bar structure inside the precast slab 2 is formed.

In one embodiment, the support bars between the upper and lower reinforcement mesh sheets 7 are split heads, the bottom feet are welded to the second reinforcement mesh sheet 72, and the top is welded to the upper reinforcement mesh sheet.

In another implementation method, the supporting reinforcement bars can also be selected to weld vertical reinforcement bars on the upper layer of the second reinforcement mesh 72, and weld horizontal reinforcement bars on the upper layer of the vertical reinforcement bars, so as to form a reinforcement bar frame as a supporting structure of the upper and lower reinforcement meshes 7.

As shown in fig. 4, the hooks 3 are U-shaped steel bar members made of steel bars with diameters of 20-25mm, the two hooks are 300mm away from the end sides of the prefabricated plate 2 respectively, and are parallel to the top surface of the prefabricated plate 2 where the steel bar meshes 7 are embedded, and the end feet of the U-shaped steel bar members are welded and fixed with supporting steel bars arranged between the first and second steel bar meshes inside the prefabricated plate 2.

As shown in fig. 3, the connecting steel bars 5 are steel bars with diameters of 20-30mm, are perpendicular to the steel bar meshes 7 and are pre-buried at a position 250mm away from the side end of the prefabricated plate 2, the connecting steel bars 5 comprise an extending part 51 and a pre-buried part 52, the pre-buried part 52 is welded and fixed on the first steel bar meshes 71 and the second steel bar meshes 72 respectively, and the extending part 51 extends out of 90-110mm on the front side surface of the prefabricated plate 2 and is used for being connected with the connecting piece 6.

In another embodiment, the pre-embedded part 52 is respectively bound and fixed on the first reinforcing mesh 71 and the second reinforcing mesh 72, and the protruding part 51 protrudes 90-110mm from the front side surface of the prefabricated panel 2 for being connected with the connecting piece 6.

In the embodiment of the utility model, the main body structure of the precast slab 2 is poured by concrete.

It should be noted that, the concrete intensity used for pouring the precast slab main part is not less than C20, the pouring process of concrete needs to pour and smear evenly by hand simultaneously, guarantee that concrete evenly distributes in the template, the inside bubble that can produce of concrete in the pouring process, the plug-in vibrator that should use after pouring is accomplished eliminates the bubble, the vibration should last to the whole general thick liquid of concrete surface, inside bubble free, the concrete does not sink, slowly pull out the vibrator, the use is scraped the thick stick and is strikeed to level, make the precast slab 2 surface of pouring level, reduce the whitewash flow and can directly carry out subsequent construction after the assembly becomes the bed-jig.

As shown in fig. 2, the prefabricated plate 2 is vertically lifted from the cushion layer 1 by the lifting hook 3 on the top surface of the prefabricated plate and the adjacent prefabricated plates lifted on the cushion layer 1 are spliced and fixed by tenons and grooves of the connecting ports 4 on the side ends, and a plurality of prefabricated plates 2 are assembled into a tire mold by fitting and fixing on the cushion layer 1.

It should be noted that, prefabricated plate 2 is hung into cushion 1 through lifting hook 3 and assembles into the bed-jig through connector 4 between two prefabricated plates, and there is the gap in the recess of adjacent prefabricated plate connector 4 and tenon concatenation department, needs to fill the gap of two prefabricated plate connectors 4 department through artifical concrete coating, increases the equipment bed-jig intensity.

As shown in fig. 2, after a plurality of prefabricated plates 2 are assembled on a cushion layer 1 to form a forming die, after the two prefabricated plates 2 are fit and fixed through a connecting port 4 at the side end, a connecting piece 6 is welded and fixed with a connecting steel bar extending part 51 to be used as a stressed steel bar for bearing the side pressure of backfill soil in subsequent construction.

As shown in fig. 1, a plurality of prefabricated plates 2 and a plurality of connecting pieces 6 are assembled into a tire mold structure, and in order to bear lateral pressure of backfill soil in subsequent construction, a supporting device 8 is assembled in the assembled tire mold to reinforce the tire mold structure, so that deformation of the tire mold caused by lateral pressure of the backfill soil in the subsequent backfill soil process is prevented.

It should be noted that the above-mentioned tire mold needs to divide into multistage support, strutting arrangement 8 is as shown in fig. 1, and is divided into upper, middle, lower triplex, and strutting arrangement 8 upper and lower triplex is spliced into square frame structure according to the tire mold size by the steel pipe support frame respectively, and is fixed in the tire mold inside parallel to bed course 1, and the bearing structure of mid-section is by 45-60 slope distribution in the tire mold inboard of many steel pipe support frames, the steel pipe support frame one end of the bearing structure of mid-section is fixed with the tire mold middle part, and the other end is fixed with the bed course 1 connection, provides horizontal support for the tire mold middle part, strutting arrangement 8 is born the lateral pressure of backfill in the follow-up construction jointly by upper, middle, lower triplex, avoids the tire mold slope deformation.

In the embodiment of the present utility model, the supporting device 8 is a steel pipe supporting frame assembled inside the tire mold, which may be metal or nonmetal, such as a square or steel scaffold.

The present utility model is not limited to the preferred embodiments, but can be modified in any way, and any simple modification, equivalent variation and variation of the above embodiments according to the technical principles of the present utility model still fall within the scope of the technical solutions of the present utility model.

Claims (9)

1. A modular tire mold structure comprising: a mat (1) for mounting in the bottom of a pit and a moulding bed mounted on said mat, characterized in that: the moulding bed comprises a plurality of precast slabs (2) and connecting pieces (6) for connecting the precast slabs (2); the precast slab (2) comprises a concrete body and a reinforcing steel mesh (7) poured in the concrete body; the side ends of the prefabricated panels (2) form connection parts for connection with adjacent prefabricated panels (2).

2. A modular tire mold structure as in claim 1, wherein: the connecting part comprises connecting ports (4) and connecting reinforcing bars (5), the connecting ports (4) of the adjacent precast slabs (2) are mutually matched, and two ends of the connecting piece (6) are respectively connected with the connecting reinforcing bars (5) of the adjacent precast slabs.

3. A modular tire mold structure as in claim 2, wherein: the connecting steel bar (5) comprises an extending part (51) and a pre-embedded part (52) which are connected with each other; the embedded part (52) is embedded in the concrete main body, and the extending part (51) is used for being connected with the connecting piece (6).

4. A modular tire mold structure as in claim 1, wherein: the precast slab (2) further comprises a lifting hook (3) arranged on the top surface.

5. A modular tire mold structure as in claim 4, wherein: the lifting hook (3) is a U-shaped steel bar piece, and two end feet of the U-shaped steel bar piece are pre-buried in the concrete main body.

6. A modular tire mold structure as in claim 1, wherein: the reinforcement mesh (7) comprises a first reinforcement mesh (71) and a second reinforcement mesh (72) which are distributed in the concrete body up and down.

7. A modular tire mold structure as in claim 1, wherein: the connecting piece (6) is made of round steel with the diameter not smaller than 20 mm.

8. A modular tire mold structure as in claim 1, wherein: supporting devices (8) are distributed in the tire mold.

9. A modular tire mold structure as in claim 8, wherein: the supporting device (8) adopts a three-section supporting structure and comprises an upper part, a middle part and a lower part.