CN216075259U

CN216075259U - Post-cast strip structure for bottom plate of underground chamber

Info

Publication number: CN216075259U
Application number: CN202121332880.4U
Authority: CN
Inventors: 殷永红
Original assignee: Guangdong Huakun Construction Group Co ltd
Current assignee: Guangdong Huakun Construction Group Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2022-03-18
Anticipated expiration: 2031-06-15

Abstract

The utility model provides a post-cast strip structure of a basement bottom plate, which is arranged in a reserved foundation trench of the basement bottom plate, wherein a concrete cushion is filled below the basement bottom plate, a waterproof layer is arranged inside the concrete cushion and corresponds to the foundation trench; a steel reinforcement framework is reserved in the foundation trench, water stops are arranged on two sides of the trench wall of the foundation trench and are arranged along the trench wall of the foundation trench, a pouring layer is filled in the foundation trench, a sinking trench is arranged at the notch of the foundation trench, the trench width of the sinking trench is larger than that of the foundation trench, and a cover plate is arranged at the sinking trench; the novel anti-seepage water tank is novel in structure, stable in overall structure and good in anti-seepage effect and performance.

Description

Post-cast strip structure for bottom plate of underground chamber

Technical Field

The utility model relates to the field of post-cast strips, in particular to a post-cast strip structure of a bottom plate of an underground chamber.

Background

Along with the rapid development of economy, the construction scale of China is increasingly large, and particularly, the number of structures for connecting super-long and super-deep basement structures and high-rise main buildings and bottom floors or multi-storey skirt buildings is large. Post-cast strip designs are commonly used to ensure structural integrity and impermeability of the basement structure. The post-cast strip refers to a temporary strip-shaped seam which is reserved in a construction period according to engineering requirements in a cast-in-place integral reinforced concrete structure and plays a role in digesting, settling, shrinking and deforming, and after the post-cast strip is reserved for a period of time, the post-cast strip is tightly poured by concrete to form a continuous integral structure; however, most of the existing post-cast strip structures are simple in structure, and the waterproof effect and the performance are still to be improved.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a post-cast strip structure of a bottom plate of an underground chamber, which has the advantages of novel structure, stable integral structure and good water seepage prevention effect and performance.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a post-cast strip structure of a basement bottom plate, which is arranged in a reserved foundation trench of the basement bottom plate, wherein a concrete cushion is filled below the basement bottom plate, a waterproof layer is arranged inside the concrete cushion and corresponds to the foundation trench; the foundation ditch is characterized in that a steel reinforcement framework is reserved inside the foundation ditch, water stop belts are arranged on two sides of the wall of the foundation ditch and are arranged along the wall of the foundation ditch, a pouring layer is filled inside the foundation ditch, a sinking groove is arranged at the notch of the foundation ditch, the groove width of the sinking groove is larger than that of the foundation ditch, and a cover plate is arranged at the sinking groove.

In a preferred technical scheme of the utility model, the bottom of the concrete cushion is convexly thickened towards the direction far away from the basement bottom plate, and the convexly thickened part corresponds to the position of the foundation trench.

In a preferred technical scheme of the utility model, the middle part of the waterproof layer is of a concave arc-shaped structure, and the concave part corresponds to the convex thickened part of the concrete cushion layer; and the two sides of the waterproof layer are both in straight structures and are arranged close to the bottom surfaces of the basement bottom plates on the two sides of the bottom of the foundation trench.

In a preferred technical scheme of the utility model, the waterproof layer is a waterproof roll.

In a preferred technical scheme of the utility model, the middle parts of two groove walls of the base groove are both sunken towards one side far away from the center of the base groove, and the water stop belts are arranged along the groove walls of the base groove.

In a preferred technical scheme of the utility model, the water stop strip is a steel plate water stop sheet.

The utility model has the beneficial effects that:

the underground chamber bottom plate post-cast strip structure provided by the utility model is novel in structure and stable in integral structure, water stops are arranged on two sides of the groove wall of the foundation groove, the waterproof layer is arranged inside the concrete cushion layer and corresponds to the foundation groove, the post-cast strip can be subjected to a surrounding type waterproof effect, and the post-cast strip structure has a good water seepage prevention effect and performance; and the design of the top sinking groove and the cover plate can shield and protect the position of the pouring layer, so that the damage can be prevented and the integral attractiveness can be kept.

Drawings

FIG. 1 is a schematic structural view of a subsurface chamber floor post-cast strip configuration provided in an embodiment of the present invention;

fig. 2 is a schematic view of a structure of a post-cast strip of a floor slab of a basement provided in an embodiment of the utility model before casting.

In the figure:

100. a basement floor; 200. a base groove; 210. a steel reinforcement cage; 220. sinking a groove; 300. a concrete cushion; 400. a waterproof layer; 500. a water stop; 600. pouring a layer; 700. and (7) a cover plate.

Detailed Description

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1 and fig. 2, in the embodiment of the present invention, a post-cast strip structure for a basement floor is disclosed, which is provided with a foundation trench 200 reserved in the basement floor 100, a concrete cushion 300 is filled below the basement floor 100, a waterproof layer 400 is provided inside the concrete cushion 300, and the waterproof layer 400 is provided corresponding to the foundation trench 200; the reinforced bar skeleton 210 is reserved in the base groove 200, water stops 500 are arranged on two sides of the groove wall of the base groove 200, the water stops 500 are arranged along the groove wall of the base groove 200, a pouring layer 600 is filled in the base groove 200, a sinking groove 220 is arranged at the notch of the base groove 200, the groove width of the sinking groove 220 is larger than that of the base groove 200, and a cover plate 700 is arranged at the sinking groove 220.

The post-cast strip structure for the underground chamber floor is novel in structure and stable in overall structure, water stops are arranged on two sides of the groove wall of the foundation groove, the waterproof layer is arranged inside the concrete cushion layer and corresponds to the foundation groove, the post-cast strip can be subjected to a surrounding type waterproof effect, and the post-cast strip structure has a good water seepage prevention effect and performance; and the design of the top sinking groove and the cover plate can shield and protect the position of the pouring layer, so that the damage can be prevented and the integral attractiveness can be kept.

Further, the bottom of the concrete cushion 300 is convexly thickened towards the direction far away from the basement bottom plate 100, and the convexly thickened part corresponds to the base groove 200; this structural design can strengthen the support intensity of concrete bed course, strengthens overall structure intensity.

Further, the middle part of the waterproof layer 400 is of a concave arc-shaped structure, and the concave part corresponds to the convex thickened part of the concrete cushion layer 300; both sides of the waterproof layer 400 are straight structures and are arranged to be attached to the bottom surfaces of the basement floors 100 on both sides of the bottom of the foundation trench 200; this structural design can increase the waterproof area of waterproof layer, also can increase the support of concrete cushion to the waterproof layer.

Further, the waterproof layer 400 is a waterproof roll material, which is a commonly used waterproof material for post-cast strips, and is convenient to purchase and use in the market and convenient to use.

Further, the middle parts of the two groove walls of the base groove 200 are both recessed towards one side far away from the center of the base groove 200, and the water stop strip 500 is arranged along the groove wall of the base groove 200; this structural design can make things convenient for the installation of waterstop, also can increase the installation scope of waterstop, guarantees stagnant water-proof effects.

Further, the water stop strip 500 is a steel plate water stop sheet, and the material is also a commonly used water stop strip material for a post-pouring strip and can be purchased and used conveniently in the market.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the utility model. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.

Claims

1. The utility model provides a basement bottom plate post-cast strip structure, sets up in basement bottom plate (100) reserved foundation ditch (200), its characterized in that:

a concrete cushion (300) is filled below the basement bottom plate (100), a waterproof layer (400) is arranged inside the concrete cushion (300), and the waterproof layer (400) is arranged corresponding to the foundation trench (200); inside reservation of base groove (200) has framework of steel reinforcement (210), the cell wall both sides of base groove (200) all are equipped with waterstop (500), waterstop (500) are followed the cell wall setting of base groove (200), the inside packing of base groove (200) has pouring layer (600), the notch department of base groove (200) is equipped with heavy groove (220), the groove width of heavy groove (220) is greater than the groove width of base groove (200), it installs apron (700) to sink groove (220) department.

2. A subsurface chamber floor strip structure as claimed in claim 1 wherein:

the bottom of concrete cushion (300) is towards the protruding thickening of the direction of keeping away from basement bottom plate (100), and protruding thickening position with foundation trench (200) position corresponds.

3. A subsurface chamber floor strip structure as claimed in claim 2 wherein:

the middle part of the waterproof layer (400) is of a concave arc-shaped structure, and the concave part corresponds to the convex thickened part of the concrete cushion layer (300); and two sides of the waterproof layer (400) are both in straight structures and are arranged to be tightly attached to the bottom surfaces of the basement bottom plates (100) on two sides of the bottom of the foundation trench (200).

4. A subsurface chamber floor strip structure as claimed in claim 1 wherein:

the waterproof layer (400) is a waterproof roll.

5. A subsurface chamber floor strip structure as claimed in claim 1 wherein:

the middle parts of two groove walls of the base groove (200) are recessed towards one side far away from the center of the base groove (200), and the water stop belt (500) is arranged along the groove wall of the base groove (200).

6. A subsurface chamber floor strip structure as claimed in claim 1 wherein:

the water stop belt (500) is a steel plate water stop sheet.