CN210975902U

CN210975902U - Basement post-cast strip seepage prevention structure

Info

Publication number: CN210975902U
Application number: CN201921257663.6U
Authority: CN
Inventors: 朱林; 王征; 朱峰; 张静
Original assignee: Hunan No4 Engineering Corp Co ltd
Current assignee: Hunan No4 Engineering Corp Co ltd
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-07-10
Anticipated expiration: 2029-08-05

Abstract

The utility model discloses a basement post-cast strip seepage-proofing structure, which comprises a bottom plate, wherein the middle part of the bottom plate sinks to form a pouring space of a post-cast strip; and a hydrophobic structure is arranged at the position below the bottom plate corresponding to the post-pouring belt. The utility model adopts the form of the sinking type post-cast strip and the hydrophobic structure, and the sinking type post-cast strip has good anti-seepage effect. The arrangement of the hydrophobic structure can drain the underground water at any time, so as to play a role of draining water, so that the underground water cannot seep to the post-pouring zone, and an ideal anti-seepage effect is achieved.

Description

Basement post-cast strip seepage prevention structure

Technical Field

The utility model belongs to the technical field of the building post-cast strip structure, especially, relate to a basement post-cast strip seepage prevention structure.

Background

The post-cast strip is a temporary construction joint reserved at the corresponding position of a foundation slab, a wall and a beam according to the design or construction specification requirement in order to prevent a possibly generated harmful crack of a cast-in-place reinforced concrete structure due to nonuniform self shrinkage or nonuniform settlement in the building construction. The post-cast strip temporarily divides the structure into a plurality of parts, the construction joint concrete is cast and tamped after a plurality of time after the internal contraction of the member, and the structure is connected into an integral zone. The remaining width of the post-cast strip is generally 700- & lt 1000 & gt mm.

The basement post-cast strip is a key part, particularly the water leakage phenomenon generally occurs at the position of the bottom plate post-cast strip due to abundant underground water, the quality defect of the post-cast strip and the like, a common quality problem which is difficult to be radically treated is formed, and great manpower, material resources and financial resources are needed to be treated.

The currently adopted bottom plate post-cast strip forms mainly include a common type and a sinking type.

The general formula is that the thickness of the post-cast strip is consistent with that of other bottom plates, only a steel plate water stop is arranged, and the post-cast strip in the form is widely applied, but has poor water leakage prevention effect.

The sinking type is that the post-cast strip sinks to a certain depth, anti-cracking reinforcing steel bars are properly added, and the anti-permeability grade of the concrete is improved, compared with the common post-cast strip, the anti-cracking and waterproof effect of the post-cast strip is greatly improved, but the anti-cracking and waterproof type is still an anti-type, but the anti-cracking and waterproof type can generate fatigue phenomenon along with the delay of time, cracks can be generated under the action of temperature stress and other stress, or the water leakage phenomenon can be generated due to the quality reason of the concrete.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art not enough, provide an energy-conservation, environmental protection, crack control, water-proof effects are good, long service life's basement post-cast strip seepage prevention structure.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a basement post-cast strip seepage-proofing structure comprises a bottom plate, wherein the middle part of the bottom plate sinks to form a pouring space of a post-cast strip; and a hydrophobic structure is arranged at the position below the bottom plate corresponding to the post-pouring belt.

The utility model adopts the form of the sinking type post-cast strip and the hydrophobic structure, and the sinking type post-cast strip has good anti-seepage effect. The arrangement of the hydrophobic structure can drain the underground water at any time, so as to play a role of draining water, so that the underground water cannot seep to the post-pouring zone, and an ideal anti-seepage effect is achieved.

As a further improvement of the above technical solution:

the hydrophobic structure comprises a crushed stone layer and blind ditch layers connected to the crushed stone layer along the two sides of the width direction of the post-cast strip.

The blind ditch layer is formed by sequentially connecting a plurality of blind ditches along the width direction of the post-cast strip.

Preferably, the blind ditch is formed by wrapping filter cloth outside a plastic core body, and is durable in use, strong in acid and alkali resistance, light in weight, convenient to construct and good in drainage effect; the crushed stone body is formed by layering and compacting common crushed stones (with the grain diameter of 20-40 mm), has good bearing and water filtering effects, and is energy-saving and environment-friendly.

In order to realize good hydrophobic effect, the width of the hydrophobic structure is larger than that of the post-cast strip.

In order to further improve the anti-permeability effect of the structure, an anti-permeability layer is laid at the bottom of the bottom plate.

The bottom plate and the impermeable layer are both formed by pouring impermeable concrete so as to play a better impermeable role.

In order to further improve the waterproof effect of the structure, a horizontally arranged water stop plate is embedded in the bottom plate, and the part of the water stop plate, which is opposite to the side wall of the post-pouring belt, extends into the post-pouring belt.

The water stop plate extends to two end faces of the bottom plate along the length direction of the post-cast strip.

The two water stop plates respectively penetrate through the corresponding side walls of the post-pouring belt.

Compared with the prior art, the utility model has the advantages of:

1. the utility model adopts the form of the sinking type post-cast strip and the hydrophobic structure, and the sinking type post-cast strip has good anti-seepage effect. The arrangement of the hydrophobic structure can drain the underground water at any time, so as to play a role of draining water, so that the underground water cannot seep to the post-pouring zone, and an ideal anti-seepage effect is achieved.

2. The structure is energy-saving, environment-friendly, anti-cracking, capable of avoiding repair and long in service life.

Drawings

Fig. 1 is the utility model discloses basement post-cast strip prevention of seepage structure sketch map.

Illustration of the drawings: 1. post-pouring a belt; 2. a base plate; 3. a water stop plate; 4. an impermeable layer; 5. a blind ditch layer; 6. and (4) a crushed stone layer.

Detailed Description

The invention is further described below with reference to specific preferred embodiments, without thereby limiting the scope of protection of the invention.

Example (b):

as shown in fig. 1, the basement post-cast strip seepage-proofing structure of the embodiment includes a bottom plate 2, and the middle part of the bottom plate 2 sinks to form a pouring space of the post-cast strip 1. Two water stop plates 3 which are horizontally arranged are pre-embedded in the bottom plate 2, and the parts of the water stop plates 3 extend into the post-pouring belt 1 relative to the side wall of the post-pouring belt 1. The two water stop plates 3 respectively penetrate through the corresponding side walls of the post-pouring strip 1. In order to realize a good waterproof effect, the water stop plate 3 extends to two end faces of the bottom plate 2 along the length direction of the post-cast strip 1.

An impermeable layer 4 is laid at the bottom of the bottom plate 2, and the impermeable layer 4 and the bottom plate 2 are both made of impermeable concrete. The position of the bottom of the impermeable layer 4 corresponding to the post-cast strip 1 is provided with a hydrophobic structure, the width W1 of the post-cast strip 1 is 700mm-1000mm, and the width W2 of the hydrophobic structure is larger than the width W1 of the post-cast strip 1.

The hydrophobic structure includes a crushed stone layer 6 and blind ditch layers 5 connected to both sides of the crushed stone layer 6 in the width direction of the post-cast strip 1. The blind ditch layer 5 is formed by sequentially connecting a plurality of blind ditches along the width direction of the post-cast strip 1. Preferably, the blind ditch is formed by wrapping filter cloth outside a plastic core body, and is durable in use, strong in acid and alkali resistance, light in weight, convenient to construct and good in drainage effect; the crushed stone body is formed by layering and compacting common crushed stones (with the grain diameter of 20-40 mm), has good bearing and water filtering effects, and is energy-saving and environment-friendly.

The utility model adopts the form of the sinking type post-cast strip, the plastic blind ditch and the gravel body, and the sinking type post-cast strip has good anti-seepage effect. The plastic blind ditches and the gravel bodies can drain underground water at any time, so that the water draining effect is achieved, the underground water cannot seep to the post-pouring zone, and an ideal anti-seepage effect is achieved.

The construction process of the basement post-cast strip seepage-proofing structure of the embodiment is as follows:

when the basement bottom plate earthwork is excavated, the post-cast strip is arranged at the required depth by overexcavation, the blind ditch layer 5 and the crushed stone layer 6 are installed, then the concrete cushion layer (namely the impermeable layer 4) is poured, the reinforced concrete bottom plate 2 is poured, the steel plate water stop plate 3 is installed, and the post-cast strip 1 concrete is poured after the specified age is reached.

The above description is only for the preferred embodiment of the present application and should not be taken as limiting the present application in any way, and although the present application has been disclosed in the preferred embodiment, it is not intended to limit the present application, and those skilled in the art should understand that they can make various changes and modifications within the technical scope of the present application without departing from the scope of the present application, and therefore all the changes and modifications can be made within the technical scope of the present application.

Claims

1. The basement post-cast strip seepage-proofing structure comprises a bottom plate (2), and is characterized in that the middle of the bottom plate (2) sinks to form a pouring space of a post-cast strip (1); and a hydrophobic structure is arranged at the position below the bottom plate (2) corresponding to the post-cast strip (1).

2. The basement post-cast strip seepage prevention structure according to claim 1, wherein the hydrophobic structure comprises a gravel layer (6) and blind ditch layers (5) connected to the gravel layer (6) on two sides in the width direction of the post-cast strip (1).

3. The basement post-cast strip seepage-proofing structure according to claim 2, wherein the blind ditch layer (5) is formed by sequentially connecting a plurality of blind ditches along the width direction of the post-cast strip (1).

4. The basement post-cast strip seepage prevention structure of claim 3, wherein the blind ditch is made of plastic core body wrapped with filter cloth.

5. The basement post-cast strip seepage prevention structure according to any one of claims 1 to 4, wherein the width (W2) of the hydrophobic structure is larger than the width (W1) of the post-cast strip (1).

6. The basement post-cast strip seepage prevention structure according to any one of claims 1 to 4, wherein the bottom of the bottom plate (2) is paved with a seepage prevention layer (4).

7. The basement post-cast strip seepage-proofing structure according to claim 6, wherein the bottom plate (2) and the seepage-proofing layer (4) are both made of impervious concrete by casting.

8. The basement post-cast strip seepage prevention structure according to any one of claims 1 to 4, wherein a horizontally arranged water stop plate (3) is embedded in the bottom plate (2), and the water stop plate (3) partially extends into the post-cast strip (1) relative to the side wall of the post-cast strip (1).

9. The basement post-cast strip seepage-proofing structure according to claim 8, wherein the water stop plate (3) extends to two end faces of the bottom plate (2) along the length direction of the post-cast strip (1).

10. The basement post-pouring belt seepage-proofing structure according to claim 8, wherein two water-stopping plates (3) are arranged, and the two water-stopping plates (3) respectively penetrate through the corresponding side walls of the post-pouring belt (1).