CN212612247U

CN212612247U - Small-sized sewage intercepting box culvert for river treatment

Info

Publication number: CN212612247U
Application number: CN202021848790.6U
Authority: CN
Inventors: 张哲�; 陈希勇; 刘妍婧; 任宇涛
Original assignee: China ENFI Engineering Corp
Current assignee: China ENFI Engineering Corp
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-02-26
Anticipated expiration: 2030-08-28

Abstract

The utility model discloses a small-size box culvert that cuts dirty for river course is administered. Wherein, cut dirty box culvert and set up in the riverbed, the section of cutting dirty box culvert is the rectangle, the clear size of the section of cutting dirty box culvert is: the length is less than 1m, and the width is less than 1 m; the sewage intercepting box culvert sequentially comprises from outside to inside: the steel plate layer is poured on the inner wall of the reinforced concrete structure layer as an inner template, and the epoxy coal tar pitch anticorrosive coating layer is coated on the surface of the steel plate layer facing the inside of the sewage intercepting box culvert. The utility model discloses cut dirty box culvert simple structure, convenient operation has avoided the process of dismantling the inner formword, has reduced sewage to the corruption of cutting dirty box culvert, has prolonged the life who cuts dirty box culvert, is particularly useful for the river course of sewage low discharge operating mode to administer.

Description

Small-sized sewage intercepting box culvert for river treatment

Technical Field

The utility model relates to a construction technical field especially relates to a small-size box culvert that cuts dirty for river course is administered.

Background

The sewage interception project is a core project for treating black and odorous water bodies in a river channel, most of the sewage interception projects implemented at present are provided with sewage interception pipelines on the shore, and sewage discharged to the river channel is collected through the pipelines so as to avoid polluting the water bodies.

The applicant realizes that when a large sewage intercepting project is built on a river bank, the sewage intercepting pipe culvert has large size, and the net size of the cross section is generally larger than 1m²This cut dirty box culvert is used for the flow great more, and the mixed and disorderly unordered of sewage discharge port, the drainage system of rain sewage confluence, as chinese application CN110029721A discloses a pipe culvert that has blowdown and just rain regulation function combines to cut dirty structure, and it specifically discloses: set gradually front end regulation pond, main regulation pond and drainage pond from upper reaches to low reaches in the box culvert structure, the emphasis utilizes the box culvert that cuts dirty to regulate and hold initial stage rainwater, and this kind of box culvert is mainly to large-scale municipal drainage engineering. The applicant found that: in many projects, a large number of buildings on the shore are incapable of being removed, the conditions for constructing a sewage intercepting pipeline on the shore are not met, and the design calculation shows that the drainage flow is low under the condition; therefore, under such conditions, it is necessary to provide a small sewage intercepting pipeline or a sewage intercepting box culvert in the river bed.

However, the sewage intercepting box culvert in the prior art has large size and is not suitable for the working condition of small flow, for example, when the sewage intercepting box culvert is arranged in a riverbed, the box culvert has small size, and the problem that an inner template is very difficult to install and remove exists during construction. In addition, the inside of the sewage intercepting box culvert runs for a long time through sewage, so that the inner wall of the sewage intercepting box culvert is seriously corroded and damaged, and the service life of the sewage intercepting box culvert is influenced.

Based on the problem, the utility model provides a can set up the small-size box culvert that cuts in the riverbed to cut off to sewage low discharge operating mode, and can improve the life who cuts the box culvert that cuts dirty.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure, construction convenience, efficient, long service life's small-size pollutant intercepting box culvert for river course is administered.

The above object of the present invention is achieved by the following technical solutions:

according to an aspect of the utility model provides a pair of a small-size pollutant-intercepting box culvert for river course is administered, pollutant-intercepting box culvert sets up in the riverbed, pollutant-intercepting box culvert's section is the rectangle, pollutant-intercepting box culvert's sectional net size does: the length is less than 1m, and the width is less than 1 m; the sewage intercepting box culvert sequentially comprises from outside to inside: the steel plate layer is poured on the inner wall of the reinforced concrete structure layer as an inner template, and the epoxy coal tar pitch anticorrosive coating layer is coated on the surface of the steel plate layer facing the inside of the sewage intercepting box culvert. The inside of the sewage intercepting box culvert is also the hole formed by the sewage intercepting box culvert.

Preferably, the thickness of the steel plate layer is 2 mm-4 mm. More preferably, the thickness of the steel deck is 3 mm.

Preferably, the thickness of the epoxy coal tar pitch anticorrosive coating layer is 0.5 mm-1.5 mm.

Preferably, the clear size of the cross section of the sewage intercepting box culvert is less than 1m × 1 m. More preferably, the clear dimension of the section of the sewage intercepting box culvert is 0.5m × 0.5 m.

Preferably, a plain concrete cushion layer is laid in the riverbed, and the sewage intercepting box culvert is arranged on the plain concrete cushion layer.

Preferably, the reinforced concrete structure layer is provided with a structural rib in a shape like a Chinese character 'ji'.

Compared with the prior art, the small-sized sewage intercepting box culvert for river regulation has the advantages of simple structure, convenient installation, high construction efficiency and long service life; the steel plate is used as an inner template during the pouring of the reinforced concrete structure to replace the traditional building templates such as wood-rubber plates and the like, so that a supporting structure and a connecting piece in the traditional template structure are omitted, the inner template does not need to be dismantled after the pouring of the reinforced concrete structure is finished, the steel plate is directly used as a lining material of the concrete structure to be directly put into operation, the operation is simple, and the construction period is greatly shortened; the utility model discloses still scribble epoxy pitch anticorrosive paint on the surface of steel sheet and sewage contact to reduced the corruption of sewage to cutting dirty box culvert, avoided cutting dirty box culvert damaged, thereby effectively prolonged the life who cuts dirty box culvert.

Drawings

Figure 1 is the sectional structure schematic diagram of the small-sized sewage intercepting box culvert for river treatment.

In fig. 1, 10 reinforced concrete structure layers, 20 steel plate layers, 30 epoxy coal tar pitch anticorrosive coating layers and 40 plain concrete cushion layers.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Fig. 1 schematically shows the utility model is used for the small-size section structure of cutting dirty box culvert of river course improvement. As shown in fig. 1, the utility model provides a pair of a small-size pollutant-intercepting box culvert for river course is administered, pollutant-intercepting box culvert sets up in the riverbed, pollutant-intercepting box culvert's section is the rectangle, pollutant-intercepting box culvert's sectional net size (be hole longitudinal section size) is: the length is less than 1m, and the width is less than 1 m; the sewage intercepting box culvert sequentially comprises from outside to inside: the anti-corrosion steel plate comprises a reinforced concrete structure layer 10, a steel plate layer 20 and an epoxy coal tar pitch anti-corrosion coating layer 30, wherein the steel plate layer 20 is poured on the inner wall of the reinforced concrete structure layer 10 as an inner template, and the epoxy coal tar pitch anti-corrosion coating layer 30 is coated on the surface of the steel plate layer 20 facing the inside of the sewage intercepting box culvert.

The utility model discloses in, plain concrete bed course 40 has been laid in the riverbed, the box culvert that cuts dirty sets up on the plain concrete bed course 40.

The thickness of the steel deck 20 of the utility model can be 2mm ~ 4 mm. More preferably, the thickness of the steel deck 20 may be 2mm to 3 mm. Further preferably, the thickness of the steel deck 20 is 3 mm. The steel plate is used as the inner template, follow-up dismantling is not needed, the inner wall of the sewage intercepting box culvert can be used permanently, the operation is simple, and the construction period is greatly shortened.

In order to reduce the corruption of sewage to cutting dirty box culvert, avoid the box culvert damaged because of corroding to reduce the life who cuts dirty box culvert, the utility model discloses, scribble epoxy coal pitch anticorrosive paint on the surface of steel sheet and sewage contact, form epoxy coal pitch anticorrosive paint layer 30, its thickness can be for 0.5mm ~ 1.5 mm.

The utility model discloses cut dirty box culvert for small-size cut dirty box culvert, its hole longitudinal section can be the square, and the net size is less than 1 mx 1m, and this small-size cut dirty box culvert can set up in the riverbed. More preferably, the clear dimension of the cross section of the sewage intercepting box culvert (i.e. the longitudinal section dimension of the holes) is 0.5m × 0.5 m. As shown in fig. 1, in the horizontal direction, the method sequentially comprises: the side wall and the box culvert are wide and the side wall is wide; in the vertical direction, include in proper order: the top plate, the box culvert clear height and the bottom plate; the net size refers to the net width and height of the box culvert.

It is right to combine specific embodiment below the utility model discloses a small-size sewage box culvert's that cuts for river regulation work progress and carry out following description:

in the black and odorous river course of some place administers and intercepts dirty engineering, the sewage mouth of draining a river is numerous, because of the building can't demolish on the bank, can not set up on the bank and intercept dirty pipeline, if adopt the large-scale box culvert that intercepts sewage of tradition, then the inner formword installation and demolish will be very difficult, seriously influence the efficiency of construction. Therefore, need set up in the riverbed the utility model is used for the small-size box culvert that cuts dirty of river course improvement.

The specific operation process is as follows:

firstly, performing hydraulic calculation according to the flow rate of the river channel, and determining that the net section size (namely the longitudinal section size of a hole) of the sewage intercepting box culvert is 0.5m multiplied by 0.5 m; secondly, determining to adopt a steel plate with the thickness of 3mm as an inner template, and coating epoxy coal tar pitch anticorrosive paint on one surface of the steel plate; then, pouring a plain concrete cushion layer 40 in the riverbed, binding steel bars, erecting an inner template (one surface of the steel plate coated with the epoxy coal tar pitch anticorrosive paint is erected towards the interior of the sewage intercepting box culvert, namely the surface is erected on the water facing side of the sewage intercepting box culvert) and an outer template, and pouring concrete to form a reinforced concrete structure layer 10; and finally, directly removing the outer template after the reinforced concrete structure layer 10 reaches a certain strength without removing an inner template (steel plate), wherein the inner template can be directly put into operation as a lining material of the reinforced concrete structure layer 10. Wherein, the structure muscle of several types can be adopted in the concreting process to the stability of reinforcing structure.

The description of the present invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A small-sized sewage intercepting box culvert for river regulation, which is characterized in that,

the sewage intercepting box culvert is arranged in a riverbed, the section of the sewage intercepting box culvert is rectangular, and the net size of the section of the sewage intercepting box culvert is as follows: the length is less than 1m, and the width is less than 1 m;

the sewage intercepting box culvert sequentially comprises from outside to inside: the steel plate layer is poured on the inner wall of the reinforced concrete structure layer as an inner template, and the epoxy coal tar pitch anticorrosive coating layer is coated on the surface of the steel plate layer facing the inside of the sewage intercepting box culvert.

2. The small-sized sewage intercepting box culvert according to claim 1, wherein the thickness of the steel plate layer is 2-4 mm.

3. The small sewage intercepting culvert according to claim 1, wherein the thickness of the steel plate layer is 3 mm.

4. The small-sized sewage intercepting box culvert according to claim 1, wherein the thickness of the epoxy coal tar pitch anticorrosive coating layer is 0.5mm to 1.5 mm.

5. The small-sized sewage intercepting box culvert according to claim 1, wherein the clear dimension of the section of the sewage intercepting box culvert is less than 1m x 1 m.

6. The small-sized sewage intercepting box culvert according to claim 1, wherein the clear dimension of the section of the sewage intercepting box culvert is 0.5m x 0.5 m.

7. The small-sized sewage intercepting box culvert according to claim 1, wherein a plain concrete cushion is laid in the riverbed, and the sewage intercepting box culvert is arranged on the plain concrete cushion.

8. The small-sized sewage intercepting box culvert according to claim 1, wherein the reinforced concrete structural layer is provided with a structural rib in a shape like a Chinese character 'ji'.