CN216515690U

CN216515690U - Novel sump pit is used to underground structures

Info

Publication number: CN216515690U
Application number: CN202123117549.3U
Authority: CN
Inventors: 彭文立; 黄钰婷; 李静; 王涛; 陆荣韩; 朱泽强; 余增兵; 丁千夏
Original assignee: Hualan Design Group Co ltd
Current assignee: Hualan Design Group Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-05-13
Anticipated expiration: 2031-12-13

Abstract

The utility model discloses a novel sump pit for an underground structure, which comprises a structure bottom plate, wherein a cushion layer is arranged at the bottom of the structure bottom plate, a sump pit penetrating through the cushion layer is arranged on the outer side of the structure bottom plate, the sump pit comprises a pre-buried PVC pipe, graded broken stones and an impermeable layer, and the bottom of the pit is hemispherical; a plurality of through-holes have been seted up to the surface of pre-buried PVC pipe, and pre-buried PVC pipe cut directly into at the bottom of the hemisphere, this kind of novel sump pit for underground structures, this kind of pit arm adopts cylindrically, the adoption is hemispherical at the bottom of the pit, it is less to enable the wall soil body stress, the wall is difficult for collapsing, take through-hole pre-buried pipe cut directly into the hemisphere bottom, can take out futilely as far as when guaranteeing to draw water, pre-buried pipe can not only be fixed to the graded broken stone between pre-buried PVC pipe and wall but also can support the wall, the function is clear, the atress is reasonable, construction convenience and quickness, the cost is low, need not maintain almost.

Description

Novel sump pit is used to underground structures

Technical Field

The utility model belongs to the technical field of underground space structures, and particularly relates to a novel water collecting pit for an underground structure.

Background

The common underground structure sump pit (well) is usually buried in the corridor below a low point by adopting a cuboid, and during construction, the pit is dug in a soil body, trimming, reinforcing bars and a formwork are supported to cast a concrete well wall, so that the working procedures are relatively troublesome, and the well wall collapse phenomenon is easy to occur.

Aiming at the problems that the seepage (accumulation) water quantity in the underground space structure is not large, and the required water collecting pit is small, the novel water collecting pit which is convenient to construct and saves investment is specially designed.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a novel sump for an underground structure, which has the characteristics of reasonable stress, convenient and quick construction, low manufacturing cost and almost no need of maintenance.

In order to achieve the purpose, the utility model provides the following technical scheme: a novel sump pit for an underground structure comprises a cushion layer arranged at the bottom of a structure bottom plate, a sump pit penetrating through the cushion layer is arranged on the outer side of the structure bottom plate, the sump pit comprises a pre-buried PVC pipe, graded broken stones and an impermeable layer, and the pit bottom is hemispherical;

a plurality of through holes are formed in the outer surface of the embedded PVC pipe, and the embedded PVC pipe is directly inserted into the hemispherical pit bottom.

Preferably, the pit wall of the sump is cylindrical.

Preferably, the impermeable layer is made by plastering steel wire meshes and cement mortar.

Preferably, the barrier layer is a puncture resistant barrier membrane.

Preferably, the embedded PVC pipe is located in the middle of the hemispherical water collecting pit, and the bottom shape of the embedded PVC pipe is tightly attached to the hemispherical water collecting pit.

Compared with the prior art, the utility model has the beneficial effects that: this underground structures uses novel sump pit, this kind of pit wall adopts cylindrically, and the adoption hemisphere at the bottom of the pit enables that pit wall soil body stress is less, the pit wall is difficult for collapsing, takes through-hole embedded pipe to directly insert the hemisphere bottom, can take out futilely as far as when guaranteeing to draw water, and the graded broken stone between embedded PVC pipe and pit wall both can fix the embedded pipe and can support the pit wall again, and the function is clear and definite, and the atress is reasonable, and construction convenience is swift, and the cost is low, need not maintain hardly.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a schematic top view of the present invention;

fig. 3 is a schematic view of a partial structure of the embedded PVC pipe of the present invention.

In the figure: 1. pre-burying a PVC pipe; 2. grading broken stone; 3. an impermeable layer; 4. a structure floor; 5. a cushion layer; 6. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following technical solutions: a novel sump pit for an underground structure comprises a cushion layer 5 arranged at the bottom of a structure bottom plate 4, a sump pit penetrating through the cushion layer 5 is formed on the outer side of the structure bottom plate 4, the sump pit comprises an embedded PVC pipe 1, graded broken stones 2 and an impermeable layer 3, the pit bottom is hemispherical, and the graded broken stones 2 between the embedded PVC pipe 1 and the pit wall can fix the embedded PVC pipe 1 and support the pit wall;

a plurality of through-holes 6 are opened to the surface of pre-buried PVC pipe 1, and pre-buried PVC pipe 1 inserts the hemisphere hole bottom directly.

The pit wall of the water collecting pit is cylindrical, so that the stress of a soil body of the pit wall is small, and the pit wall is not easy to collapse.

The impermeable layer 3 is made by plastering a steel wire mesh and cement mortar or the impermeable layer 3 is an anti-puncture impermeable film, and the impermeable layer 3 is used for preventing soil moisture outside the pit from flowing into the pit.

The pre-buried PVC pipe 1 is located in the middle of the hemispherical water collecting pit, and the bottom shape of the pre-buried PVC pipe 1 is tightly attached to the hemispherical water collecting pit, so that the pre-buried PVC pipe can be pumped as dry as possible when water is pumped.

The working principle and the using process of the utility model are as follows: when the anti-seepage waterproof pit is used, the pit can be dug manually or mechanically, the anti-seepage layer 3 can be constructed after the pit wall is leveled, the anti-seepage layer 3 can be coated by steel wire mesh and cement mortar, and an anti-seepage membrane for resisting puncture can also be adopted, the pre-buried PVC pipe 1 with the through hole 6 is placed in the middle of the pit, and graded broken stones 2 are filled between the pre-buried PVC pipe 1 and the pit wall, so that the anti-seepage waterproof pit has the advantages of clear function, reasonable stress, convenience and quickness in construction, low manufacturing cost and almost no need of maintenance.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A novel sump pit for an underground structure is characterized by comprising a cushion layer (5) arranged at the bottom of a structure bottom plate (4), a sump pit penetrating through the cushion layer (5) is formed in the outer side of the structure bottom plate (4), the sump pit comprises a pre-buried PVC pipe (1), graded broken stones (2) and an impermeable layer (3), and the bottom of the pit is hemispherical;

a plurality of through holes (6) are formed in the outer surface of the embedded PVC pipe (1), and the embedded PVC pipe (1) is directly inserted into the hemispherical pit bottom.

2. A novel sump for an underground structure according to claim 1, wherein: the pit wall of the water collecting pit is cylindrical.

3. A novel sump for an underground structure according to claim 1, wherein: the impermeable layer (3) is made by plastering a steel wire mesh and cement mortar.

4. A novel sump for an underground structure according to claim 1, wherein: the impermeable layer (3) is a puncture-resistant impermeable membrane.

5. A novel sump for an underground structure according to claim 1, wherein: the embedded PVC pipe (1) is located in the middle of the hemispherical water collecting pit, and the bottom shape of the embedded PVC pipe (1) is tightly attached to the hemispherical water collecting pit.