CN220725154U

CN220725154U - Gravity drainage device used in bottom plate

Info

Publication number: CN220725154U
Application number: CN202322331932.1U
Authority: CN
Inventors: 唐明成; 张乐乐; 李聪聪; 初士昂; 袁龙彬; 杨高勇; 连伟佳; 马勋宇; 李子凯; 陈建军; 唐俊俊
Original assignee: China Construction Second Engineering Bureau Co Ltd
Current assignee: China Construction Second Engineering Bureau Co Ltd
Priority date: 2023-08-29
Filing date: 2023-08-29
Publication date: 2024-04-05
Anticipated expiration: 2033-08-29

Abstract

The gravity drainage device comprises a water collecting pipe pre-buried in a bottom plate and a plurality of drainage blind pipes which are obliquely arranged, wherein the water diversion high end of each drainage blind pipe is positioned at the edge of the bottom plate or at a pre-gap, and the pre-gap is the midspan position of the large-span bottom plate; the water outlet bottom end of the drainage blind pipe is connected to the water collecting pipe, and the water collecting pipe is externally connected to the water collecting well. According to the utility model, the drainage blind pipe is obliquely arranged to drain the water seepage at the edge or the pre-gap of the bottom plate, and then the water seepage is discharged into the water collecting well through the water collecting pipe, so that the leakage probability of the bottom plate is reduced, and the construction quality is improved.

Description

Gravity drainage device used in bottom plate

Technical Field

The utility model relates to the technical field of drainage of building bottom plates, in particular to a gravity drainage device used in a bottom plate.

Background

In large-scale construction engineering, for the construction of a newly poured concrete bottom plate, if the span of the bottom plate is large, cracks are easy to generate at the middle position after pouring; for construction of connecting with the original building, the joint is also easy to generate cracks due to different settlement states of the new building and the old building. The crack is a weak position of water seepage and leakage of the structure, and if the water seepage and leakage at the crack are not timely dredged, the leakage probability of the bottom plate can be increased, so that the construction quality is reduced.

Disclosure of Invention

Based on the above, the utility model aims to provide a gravity drainage device used in a bottom plate, which can timely drain the water leakage at the crack, reduce the leakage probability of the bottom plate and further improve the construction quality.

The gravity drainage device comprises a water collecting pipe pre-buried in a bottom plate and a plurality of drainage blind pipes which are obliquely arranged, wherein the water diversion high end of each drainage blind pipe is positioned at the edge of the bottom plate or at a pre-gap, and the pre-gap is the midspan position of the large-span bottom plate;

the water outlet bottom end of the drainage blind pipe is connected to the water collecting pipe, and the water collecting pipe is externally connected to the water collecting well.

Compared with the prior art, the drainage blind pipe is obliquely arranged to drain water seepage at the edge or the pre-gap of the bottom plate, and then the water seepage is discharged into the water collecting well through the water collecting pipe, so that the leakage probability of the bottom plate is reduced, and the construction quality is improved.

Further, during pre-buried treatment, the drainage blind pipe is fixed through the iron wire, and the inclination is 30 degrees.

Further, the non-woven fabric layer is wrapped at the water diversion high end of the drainage blind pipe.

Further, a water-stopping steel plate is arranged at the joint boundary between the newly poured bottom plate and the poured bottom plate or the original bottom plate, and two water-stopping side edges of the water-stopping steel plate are respectively connected to the water diversion high ends of the drainage blind pipes on the corresponding sides.

Further, the cross section of the water stop steel plate is isosceles trapezoid or inverted V-shaped.

Further, waterproof coiled materials are paved at the bottom of the bottom plate.

Drawings

FIG. 1 is a schematic view of a gravity drainage device in a base plate according to the present utility model;

FIG. 2 is a schematic view of the structure at the junction edge of a newly poured floor and a poured floor according to the present utility model;

FIG. 3 is a schematic view of the structure at the junction edge of the newly poured base plate and the original base plate according to the present utility model;

FIG. 4 is a schematic diagram of the structure of the mid-span new casting floor of the present utility model in the mid-span position;

fig. 5 is a schematic view of the structure of a water collection well according to the present utility model.

Description of main reference numerals:

bottom plate	100	Novel pouring bottom plate	100a
				Poured base plate	100b	Original bottom plate	100c
Water collecting pipe	10	Drainage blind tube	11
				Water-stopping steel plate	12	Waterproof coiled material	13
Water collecting well	200

The utility model will be further described in the following detailed description in conjunction with the above-described figures.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Several embodiments of the utility model are presented in the figures. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1 and 5, in one embodiment of the present utility model, a gravity drainage device for use in a base plate includes a water collecting pipe 10 pre-embedded in a base plate 100 and a plurality of drainage blind pipes 11 arranged in an inclined manner, wherein a water diversion high end of each drainage blind pipe 11 is located at an edge of the base plate 100;

the water outlet bottom end of the drainage blind pipe 11 is connected to the water collecting pipe 10, and the water collecting pipe 10 is externally connected into the water collecting well 200.

In the utility model, the drainage blind pipe 11 is obliquely arranged to drain the water seepage at the edge of the bottom plate 100, then the water is discharged into the water collecting well 200 through the water collecting pipe 10, and finally the water is discharged into a project drainage system to be treated uniformly, so that the leakage probability of the bottom plate is reduced, and the construction quality is improved.

Specifically, the drainage blind pipe 11 and the water collecting pipe 10 are made of PVC pipes, and the diameter of the drainage blind pipe 11 is 80cm and smaller than that of the water collecting pipe 10. When pre-buried processing, drainage blind pipe 11 passes through the iron wire to be fixed, and inclination is 30, and this angle is convenient for installation and drainage of drainage blind pipe 11.

Referring to fig. 2, in a preferred embodiment of the present application, a water stop steel plate 12 is disposed at the junction line of the newly poured bottom plate 100a and the poured bottom plate 100b, and two water stop sides of the water stop steel plate 12 are respectively connected to the water diversion high ends of the drainage blind pipes 11 on the corresponding sides.

Referring to fig. 3, in a preferred embodiment of the present application, a water stop steel plate 12 is disposed at the junction line of the newly poured bottom plate 100a and the original bottom plate 100c, and two water stop sides of the water stop steel plate 12 are respectively connected to the water diversion high ends of the drainage blind pipes 11 on the corresponding sides.

In another preferred embodiment of the present application, the cross-sectional shape of the water stop steel plate 12 is isosceles trapezoid, so as to facilitate the drainage of the water seepage at the junction border into the drainage blind pipe 11.

Further, in other embodiments of the present application, the cross-sectional shape of the water stop steel plate 12 may be provided in an inverted V shape in addition to an isosceles trapezoid.

Referring to fig. 4, in a preferred embodiment of the present application, when the newly poured bottom plate 100a is a large-span bottom plate, the water diversion high end of the drainage blind pipe 11 is set at its mid-span position because a gap (i.e., a pre-gap) is easily generated at its mid-span position.

In another preferred embodiment of the present application, the drainage blind pipe 11 is wrapped with a non-woven fabric layer at the water diversion high end, and at least two layers are wrapped, so as to prevent the drainage blind pipe 11 from being blocked by debris and sundries at the junction edge or the pre-slit.

Further, a waterproof roll 13 is laid on the bottom of the base plate 100.

The concrete construction mode of the application is as follows:

step one: design positioning

After earth excavation is completed, determining the current situation of groundwater in a construction site according to geological survey data and actual site conditions, and planning the size specification and the whole drainage route of the drainage blind pipe by combining an original or newly-built water collecting pit.

The prior arrangement of the water collection pit is adopted. If the building needs to be built, the new building water collection pit is ensured not to influence the using function of the building and then is arranged.

Step two: buried blind pipe for water diversion and water collection pit

And (4) inserting drainage blind pipes and water collecting pipes for embedding during the basement bottom plate construction stage, and arranging water collecting pits. The drainage blind pipe is required to be distributed at an angle of 3% according to a designed drainage route so as to guide the flow direction of the underground water; the water pit is internally provided with a flow of 15m3/h, and an automatic water suction pump with a lift of 15m is used for water pumping and draining.

Step three: put into use

After the construction of the structure is completed, when the underground water level rises and the water pressure increases, and water seeps into the bottom plate crack, the seeped underground water flows into the drainage blind pipes which are obliquely arranged under the action of gravity, flows into the nearby water collecting pits along the designed drainage route to be collected, and after the water is collected to a certain height, the water suction pump in the pits is automatically started, and the collected water is discharged into the project drainage system to be treated uniformly.

In sum, this application leads to setting up drainage blind pipe in the bottom plate, dredges the underground leakage water in the bottom plate crack, effectually reduced the risk that the bottom plate leaked, reduced the influence of groundwater to the building, improved the security greatly, and the suction pump in the sump is automatic control, has reduced the manpower demand when guaranteeing that the water level is stable. The device has lower cost and simple and convenient installation, has no influence on the original structural design and the construction progress, and can be popularized and applied in the future waterproof construction of the bottom plate.

In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on a difference from other embodiments, and the same or similar parts between the embodiments are referred to each other. And the above examples only represent a few embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A gravity drainage device for use in a floor, comprising: the drainage blind pipe is characterized by comprising a water collecting pipe and a plurality of drainage blind pipes, wherein the water collecting pipe is pre-buried in the bottom plate, the drainage blind pipes are obliquely arranged, the water diversion high ends of the drainage blind pipes are positioned at the edge of the bottom plate or at a pre-gap, and the pre-gap is the midspan position of the large-span bottom plate;

2. The gravity drainage device for use in a floor according to claim 1, wherein the drainage blind pipe is fixed by an iron wire and has an inclination angle of 30 ° at the time of the pre-burying treatment.

3. The gravity drainage device for use in a floor according to claim 1 wherein the drainage blind tube is wrapped with a layer of non-woven fabric at the water-diverting high end.

4. The gravity drainage device for use in a floor according to claim 1, wherein a water stop steel plate is provided at the junction border between the newly poured floor and the poured floor or the original floor, and two water stop sides of the water stop steel plate are respectively connected to the water diversion high ends of the drainage blind pipes on the corresponding sides.

5. The gravity drainage device for use in a floor according to claim 4 wherein the cross-sectional shape of the water stop steel plate is isosceles trapezoid or inverted V-shape.

6. Gravity drainage device for use in a floor according to any of the claims 1 to 5 wherein a water-resistant roll is laid on the bottom of the floor.