CN220768180U - Post-pouring strip pre-plugging precast slab in advance - Google Patents

Abstract

The utility model discloses a post-pouring strip pre-plugging precast slab which comprises a basement bottom plate, wherein a basement outer wall is arranged on the top side of the basement bottom plate, a basement top plate is arranged at the upper end of the left side of the basement outer wall, post-pouring strip reserved grooves are formed in the outer sides of the basement top plate and the basement outer wall, and precast concrete slabs and precast concrete top plates are connected to the outer sides of the post-pouring strip reserved grooves through welding. The utility model adopts the block precast concrete slab and the precast concrete roof to form the plugging precast slab, so that manual operation construction is convenient, and the fixing mode adopts the first embedded steel bar and the second embedded steel bar to be welded and fixed with the side wall steel bar.

Description

Post-pouring strip pre-plugging precast slab in advance

Technical Field

The utility model relates to the technical field of post-cast strips, in particular to a pre-cast strip plugging precast slab in advance.

Background

The basement post-cast strip is divided into a shrinkage post-cast strip and a sedimentation post-cast strip, the shrinkage post-cast strip is generally closed in 60 days, and the sedimentation post-cast strip needs to be closed after the main structure is completed. However, for a narrow site, the inability to close the post-cast strip in advance means that basement backfilling cannot be performed, and site planning cannot be performed, thereby affecting the construction progress.

In the conventional construction method, a protection brick wall is built by using a mortar brick, waterproof mortar is smeared on the outer side of the brick wall, but the brick wall has the defects of low work efficiency, increased construction difficulty and serious influence on work efficiency if the brick wall meets a narrow spacing project between a side wall and a foundation pit. The integral precast slab hoisting device has the advantages that the integral precast slab hoisting difficulty is high, the precast slab is fixed more complicated, the hoisting risk is large in the same face of narrow conditions, and the stability of the precast slab fixation of a deep foundation pit exceeding 10m is very high.

Disclosure of Invention

This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the utility model, which should not be used to limit the scope of the utility model.

In order to solve the problem of slow work efficiency, if the project of narrow spacing between the side wall and the foundation pit is met, the construction difficulty is increased, and the work efficiency is seriously affected. The other is that the integral precast slab is hoisted, the reserved hole and the structure are fixed by opposite pulling, the defect is that the hoisting difficulty of the integral precast slab is large, the precast slab is fixed more complicated, the hoisting risk is larger in the same face of narrow conditions, and the stability of the precast slab for foundation pits exceeding 10m is very high, the utility model provides the following technical scheme:

the utility model provides a post-cast strip shutoff prefabricated plate in advance, includes the basement bottom plate, the topside of basement bottom plate is provided with the basement outer wall, the left upper end of basement outer wall is provided with the basement roof, post-cast strip reservation groove has been seted up in the outside of basement roof and basement outer wall, the outside in post-cast strip reservation groove has precast concrete slab and precast concrete roof through welded connection.

The beneficial effects of the utility model are as follows: the scheme that basement outer wall and the narrow project in foundation ditch edge are perpendicular post-cast strip is confined in advance adopts the prefabricated concrete slab of segmentation and precast concrete roof to constitute shutoff prefabricated slab for make things convenient for manual operation construction, and fixed mode adopts embedded bar one and embedded bar two and side wall reinforcing bar welded fastening, this way is simple and easy effective, and the construction is convenient, can be with basement side wall waterproof connection as a whole, reduces the seepage, can guarantee simultaneously that the curb plate stability of super dark foundation ditch satisfies the requirement, and then can backfill the basement in advance, is favorable to the narrow place project to carry out the place planning.

On the basis of the technical scheme, the utility model can be improved as follows.

As a preferable scheme for plugging precast slabs in advance by the post-cast strip, the utility model comprises the following steps: the outer side of the basement outer wall is provided with an outer wall waterproof layer, and the inner side of the basement outer wall is provided with a plurality of groups of steel bars.

The beneficial effect of adopting above-mentioned further scheme is, carries out welded fastening through the inboard pre-buried reinforcing bar of basement outer wall with the pre-buried reinforcing bar on precast concrete board and the precast concrete roof board to install fixedly to shutoff precast slab, convenient operation is simple, and improves holistic waterproof nature after the precast slab is installed under the effect of outer wall waterproof layer.

As a preferable scheme for plugging precast slabs in advance by the post-cast strip, the utility model comprises the following steps: the inside of precast concrete board is provided with the embedded bar one, just the embedded bar one takes three to be a set of respectively, the inside of every piece of precast concrete board is provided with a set of embedded bar one respectively, the diameter specification of embedded bar one is 16mm.

The beneficial effect of adopting above-mentioned further scheme is, in the in-process of using, under the effect of embedded bar one, conveniently carries out welded mounting to concrete slab and side wall reinforcing bar and fixes, and under the effect of three embedded bar one, improves the firm effect of welding.

As a preferable scheme of the post-pouring strip for plugging the precast slab in advance, a waterproof additional layer is arranged on the outermost side of the precast concrete slab, a closed plastering is arranged between the waterproof additional layer and the precast concrete slab, the smearing thickness of the closed plastering is 10mm, and the waterproof additional layer and the closed plastering are arranged between an outer wall waterproof layer and the precast concrete slab.

The beneficial effect of adopting above-mentioned further scheme is, is favorable to improving the sealed effect of post-cast strip shutoff in advance through the sealed plastering that sets up to be favorable to avoiding carrying out the in-process of post-cast strip process and appearing leaking, lead to influencing post-cast strip preparation effect, waterproof additional layer is favorable to improving holistic waterproof nature after the prefabricated plate installation simultaneously.

As a preferable scheme for plugging precast slabs in advance by the post-cast strip, the utility model comprises the following steps: the inside of precast concrete roof is provided with the buried bar second, the specification size of buried bar second is unanimous with buried bar first, just precast concrete roof is L type structure, every three buried bar second is a set of, always is provided with three groups.

The adoption of the further scheme has the beneficial effects that in the process of installing the precast slab, the precast concrete roof slab is manufactured into an L-shaped structure. The sealing is conveniently carried out at the position of the included angle between the top plate of the basement and the strong outside of the basement, the installation efficiency is improved, and the installation is convenient and quick

As a preferable scheme for plugging precast slabs in advance by the post-cast strip, the utility model comprises the following steps: the specification of the precast concrete slab is 600 x 1000 x 40mm respectively, the specification of the precast concrete roof slab is 600 x 1000 x 40mm+600 x 1000 x 40mm, the embedded bars two and the embedded bars one are respectively arranged at intervals of 250cm at equal intervals, and the distance between the embedded bars two and the embedded bars one and the longest end of the precast concrete roof slab and the precast concrete slab is 300mm.

The beneficial effect of adopting above-mentioned further scheme is, in the process of making prefabricated plate, according to the specification respectively 600 by 1000 by 40mm and 600 by 1000 by 40mm +600 by 40mm preparation precast concrete board and precast concrete roof, be favorable to specification size unification, make things convenient for constructor to take the removal simultaneously and install.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

fig. 1 is a perspective view of the whole of the present embodiment.

Fig. 2 is a top sectional view showing the installation of the prefabricated panel according to the present embodiment.

Fig. 3 is a left side view of the concrete slab of the present embodiment.

Fig. 4 is a left side view of the precast concrete deck of the present embodiment.

Fig. 5 is a front sectional view of the precast concrete deck of the present embodiment.

In the figure; basement bottom plate 1, basement outer wall 2, basement roof 3, post-cast strip preformed groove 4, precast concrete slab 5, precast concrete roof 6, outer wall waterproof layer 201, embedded steel bar one 501, waterproof additional layer 502, closed plastering 503, embedded steel bar two 601.

1. A basement floor; 2. a basement exterior wall; 3. a basement roof; 4. post-pouring belt reservation grooves; 5. manufacturing a concrete slab; 6. prefabricating a concrete roof; 201. an outer wall waterproof layer; 501. embedding a first reinforcing steel bar; 502. a waterproof additional layer; 503. sealing and plastering; 504. and embedding reinforcing steel bars II.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Examples

Referring to fig. 1 to 5, in an embodiment of the present utility model, a post-cast strip pre-plugging precast slab is provided, which includes a basement bottom plate 1, a basement outer wall 2 is provided on the top side of the basement bottom plate 1, a basement top plate 3 is provided on the upper end of the left side of the basement outer wall 2, post-cast strip pre-grooves 4 are provided on the outer sides of the basement top plate 3 and the basement outer wall 2, and precast concrete slabs 5 and precast concrete top plates 6 are connected on the outer sides of the post-cast strip pre-grooves 4 by welding;

as shown in fig. 1, the precast slabs are formed by a plurality of groups of precast concrete slabs 5, welded and fixed at the corners between the basement outer wall 2 and the basement top plate 3 by using precast concrete top plates 6, and the precast concrete is convenient and simple to install, is suitable for combined installation with a relatively narrow position, is convenient to take and move, and has high applicability.

Further, an outer wall waterproof layer 201 is arranged on the outer side of the basement outer wall 2, and a plurality of groups of reinforcing steel bars are arranged on the inner side of the basement outer wall 2;

as shown in fig. 2, an outer wall waterproof layer 201 is arranged on the outer side of the basement outer wall 2, so that the sealing performance of the prefabricated plate is improved, and the prefabricated plate is fixed by welding connection between outer wall reinforcing steel bars and prefabricated plate embedded reinforcing steel bars, so that the installation is convenient and quick, and the construction efficiency is improved.

Furthermore, the inner side of the precast concrete slab 5 is provided with first embedded bars 501, the first embedded bars 501 are respectively in a group of three, each precast concrete slab 5 is internally provided with a group of first embedded bars 501, and the diameter specification of the first embedded bars 501 is 16mm;

as shown in fig. 3, the first embedded bars are welded and fixed with the steel bars of the side walls by adopting three embedded bars, so that the installation is convenient, and the overall stability is high after the installation.

Further, a waterproof additional layer 502 is arranged at the outermost side of the precast concrete board 5, a closed plastering 503 is arranged between the waterproof additional layer 502 and the precast concrete board 5, the plastering thickness of the closed plastering 503 is 10mm, and the waterproof additional layer 502 and the closed plastering 503 are arranged between the outer wall waterproof layer 201 and the precast concrete board 5;

as shown in fig. 2, after the prefabricated concrete slab 5 is assembled and installed to complete the plugging, the plugging effect of the prefabricated slab after the integral installation is improved by smearing the sealing plastering 503 with the thickness of 10mm, leakage is avoided, and the added waterproof additional layer 502 is beneficial to further improving the waterproof performance of the prefabricated slab after the installation.

Further, a second embedded steel bar 601 is arranged in the precast concrete top plate 6, the specification and the size of the second embedded steel bar 601 are consistent with those of the first embedded steel bar 501, the precast concrete top plate 6 is of an L-shaped structure, every three embedded steel bars 601 are in a group, and three groups are arranged;

as shown in fig. 4, the precast concrete top plate 6 has an L-shaped structure, is convenient to install and use at a corner position, improves installation convenience and plugging effect, and is arranged at the second embedded steel bar 601, and is convenient to weld and fix with the side wall steel bars.

Further, the specifications of the precast concrete slabs 5 are 600 x 1000 x 40mm respectively, the specifications of the precast concrete roof boards 6 are 600 x 1000 x 40mm+600 x 1000 x 40mm, the embedded bars two 601 and the embedded bars one 501 are respectively arranged at intervals of 250cm equidistantly, and the intervals between the embedded bars two 601 and the embedded bars one 501 are 300mm from the longest ends of the precast concrete roof boards 6 and the precast concrete slabs 5;

as shown in fig. 3 and 4, the prefabricated specifications and shapes between the precast concrete slab 5 and the precast concrete roof 6 are uniform, and the prefabricated concrete slab is convenient for the constructor to take and move in the later installation and use process, has high convenience and is suitable for plugging at a narrow position.

The working principle is as follows; firstly, prefabricating 600 x 1000 precast concrete slabs 5 with 40mm in site, and burying connecting steel bars with the diameter of 16mm in the manufacturing process, then, after curing for 28 days, transporting to a vertical post-pouring belt position by a form, connecting and fixing the first embedded steel bars 501 and steel bars of the basement outer wall 2 in a welding and fixing mode, then, repeating the process to install 600 x 1000 x 40mm precast concrete slabs 5 to the height of the basement top plate 3, manufacturing 600 x 1000 x 40+600 x 40mm precast concrete top plates 6 with 40mm in the mounting period, then, using L-shaped precast concrete top plates 6 and wall steel bars at the corner position between the basement outer wall 2 and the basement top plate 3, then, after the installation is completed, smearing waterproof mortar with the thickness of 1:2 on the outer side of a plugging precast concrete slab formed by the precast concrete slabs 5 and the precast concrete top plate 6, then, performing construction on the whole basement outer wall 2 in a waterproof mode, and then, performing construction on the basement outer wall 2 in a basement fertilizer groove, and adopting a sub-block 5 and a side wall 5 to form a prefabricated concrete slab, and a side wall can be conveniently welded, the prefabricated slab can be conveniently planned, the construction requirements of the whole basement side wall can be reduced, and the side wall can be conveniently and quickly replaced, and the construction requirements can be reduced, and the construction requirements can be met, and the prefabricated underground structure can be easily and conveniently.

It is important to note that the construction and arrangement of the present application as shown in a variety of different exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present utility model. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility models. Therefore, the utility model is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Furthermore, in order to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the utility model, or those not associated with practicing the utility model).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.

It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.

Claims (6)

1. The utility model provides a post-cast strip shutoff prefabricated plate in advance which characterized in that: including basement bottom plate (1), the upside of basement bottom plate (1) is provided with basement outer wall (2), the left upper end of basement outer wall (2) is provided with basement roof (3), post-cast strip reservation groove (4) have been seted up in the outside of basement roof (3) and basement outer wall (2), the outside of post-cast strip reservation groove (4) has precast concrete slab (5) and precast concrete roof (6) through welded connection.

2. The post-cast strip pre-plugging precast slab of claim 1, wherein: an outer wall waterproof layer (201) is arranged on the outer side of the basement outer wall (2), and a plurality of groups of steel bars are arranged on the inner side of the basement outer wall (2).

3. The post-cast strip pre-plugging precast slab of claim 1, wherein: the inside of precast concrete board (5) is provided with embedded bar one (501), just embedded bar one (501) respectively uses three as a set of, the inside of every piece of precast concrete board (5) is provided with a set of embedded bar one (501) respectively, the diameter specification of embedded bar one (501) is 16mm.

4. The post-cast strip pre-plugging precast slab of claim 1, wherein: the waterproof layer (502) is arranged on the outermost side of the precast concrete board (5), a sealing plastering (503) is arranged between the waterproof layer (502) and the precast concrete board (5), the plastering thickness of the sealing plastering (503) is 10mm, and the waterproof layer (502) and the sealing plastering (503) are arranged between the outer wall waterproof layer (201) and the precast concrete board (5).

5. The post-cast strip pre-plugging precast slab of claim 3, wherein: the inside of precast concrete roof (6) is provided with embedded bar two (601), the specification size of embedded bar two (601) is unanimous with embedded bar one (501), just precast concrete roof (6) are L type structure, every three embedded bar two (601) is a set of, always is provided with three groups.

6. The post-cast strip pre-plugging precast slab of claim 5, wherein: the specification of precast concrete board (5) is 600 by 1000 by 40mm respectively, just the specification of precast concrete roof (6) is 600 by 1000 by 40mm+600 by 1000 by 40mm, pre-buried bar two (601) and pre-buried bar one (501) are arranged with the interval being 250cm equidistance respectively between pre-buried bar two (601) and pre-buried bar one (501), the longest end interval of pre-buried bar two (601) and pre-buried bar one (501) apart from precast concrete roof (6) and precast concrete board (5) is 300mm.