CN204983100U - Inspection well - Google Patents

Abstract

The utility model discloses an inspection well. The inspection well comprises a shaft (1) and a well chamber (2) communicating with the lower end of the shaft (1). Pass through in chamber (2). In the above technical solution, the wellbore communicates with the well chamber, and the pipeline laid in the river bed passes through the well chamber to facilitate the maintenance of the pipeline in the river bed. For the construction of the entire sewage interception pipeline, the location of the inspection well may occupy a very small amount of land, and most of the other land is located in the river bed, which can not only reduce the land occupation of the pipeline laying, but also solve the problem in the river bed. The problem of inconvenient pipeline maintenance is applicable to the limited land occupation of river sewage interception projects.

Description

inspection well

technical field

The utility model relates to an underground drainage detection facility, in particular to an inspection well.

Background technique

Inspection wells are commonly known as "inspection wells". They are generally located at the junctions of drainage pipes, at turning points, at pipe diameter or slope changes, at water drops, and at regular intervals on straight pipe sections. They are used for regular inspection, cleaning, and dredging of pipes. Drainage ancillary structures. Among them, inspection wells are mainly divided into sewage (waste) water inspection wells and rainwater inspection wells. Since the pipe sections between two adjacent wells should be on a straight line, inspection wells should be set up at the places where the pipe section changes, the slope changes, the junctions, and the elevation changes, and the overly long straight pipe sections also need to be segmented. Set up inspection wells (specify the interval between sections according to the diameter of the pipe and the type of rain and sewage).

However, due to the impact of rapid urban construction, the original sewage outlets on both sides of the river often have land occupation restrictions when laying sewage interception pipes in the later stage, and this is especially serious in rivers with many buildings on both sides, often resulting in expensive demolition land cost. In addition, the sewage interception pipes laid in the river course and the river side slope often have the defect of inconvenient maintenance because inspection wells cannot be built according to the specifications.

In view of the above-mentioned shortcomings of the prior art, it is necessary to provide a new type of inspection well.

Utility model content

The purpose of the utility model is to provide an inspection well to solve the problem of inconvenient maintenance of the pipelines laid in the river.

In order to achieve the above object, the utility model provides an inspection well, the inspection well includes a wellbore and a well chamber connected with the lower end of the wellbore, and the pipeline laid in the river bed passes through the well chamber.

Preferably, the well shaft is vertically arranged in the river bank slope protection.

Preferably, the upper end of the shaft is provided with an entrance hole for maintenance personnel to enter and exit, and the entrance hole is closed by a well cover.

Preferably, the upper end of the well shaft is provided with an entrance hole for maintenance personnel to enter and exit, and the inspection well also includes an extension well extending upward from the upper end of the well shaft and communicating with the well shaft, and the well cover closes the extension well the upper end.

Preferably, the extension well protrudes upwards beyond the upper surface of the river bank revetment.

Preferably, the well chamber extends from the lower end of the wellbore into the riverbed.

Preferably, the cross-section of the well chamber taken along the direction perpendicular to the extending direction of the well chamber is rectangular, circular or domed rectangular.

Preferably, a sump is provided on the bottom surface of the well chamber.

Preferably, the sump is located below the shaft.

In the above technical solution, the wellbore communicates with the well chamber, and the pipeline laid in the river bed passes through the well chamber to facilitate the maintenance of the pipeline in the river bed. For the construction of the entire sewage interception pipeline, the location of the inspection well may occupy a very small amount of land, and most of the other land is located in the river bed, which can not only reduce the land occupation of the pipeline laying, but also solve the problem in the river bed. The problem of inconvenient pipeline maintenance is applicable to the limited land occupation of river sewage interception projects.

Other features and advantages of the present utility model will be described in detail in the following specific embodiments.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, together with the following specific embodiments, are used to explain the utility model, but do not constitute a limitation to the utility model. In the attached picture:

Fig. 1 is a schematic structural view of an inspection well in an embodiment;

Fig. 2 is a schematic structural view of an inspection well in another embodiment.

in,

1 Wellbore 2 Well Chambers

3 pipes 4 inlet holes

5 sump pit 6 river bank slope protection

7 well covers 8 extension wells

detailed description

The specific embodiment of the utility model will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the utility model, and are not intended to limit the utility model.

The utility model provides an inspection well, which includes a shaft 1 and a well chamber 2 connected with the lower end of the shaft 1 , and a pipeline 3 laid in a river bed passes through the well chamber 2 . The shaft 1 communicates with the well chamber 2, and the pipelines laid in the river bed pass through the well chamber 2 to facilitate the maintenance of the pipelines in the river bed. For the construction of the entire sewage interception pipeline, the location of the inspection well may occupy a very small amount of land, while most of the other land occupation is located in the river bed, which can not only reduce the land occupation of the pipeline laying, but also solve the problems in the river bed. The problem of inconvenient pipeline maintenance is applicable to the situation where the land occupation of the river sewage interception project is limited.

Specifically, as shown in FIG. 1 and FIG. 2 , the well shaft 1 is vertically arranged in the river bank revetment 6 . Moreover, the upper end of the well shaft 1 is provided with an entrance hole 4 for maintenance personnel to enter and exit, and the entrance hole 4 is closed by a well cover 7 . Maintenance personnel can enter the inspection well from the entrance hole 4 on the river bank, and enter the well chamber 2 through the well shaft 1, so as to facilitate the maintenance of the pipeline in the river bed. In another embodiment, the upper end of the wellbore 1 is provided with an entrance hole 4 for maintenance personnel to enter and exit, and the inspection well also includes an extension well 8 extending upward from the upper end of the wellbore 1 and communicating with the wellbore 1, and the well cover 7 closes the The upper end of the extension well 8. The setting of the extension well 8 is determined according to the structure of the bank slope protection 6 and the depth of the shaft 1 upper end. Moreover, the extension well 8 preferably protrudes upwards beyond the upper surface of the bank revetment 6, so as to facilitate the maintenance of the inspection well.

Further, the well chamber 2 extends from the lower end of the wellbore 1 to the riverbed, thereby forming an "L"-shaped structure. The cross-section of the well chamber 2 taken perpendicularly to the extension direction of the well chamber is rectangular, circular or domed rectangular. Wherein, the rounded rectangle refers to a rectangle whose upper side is replaced by an arc, that is, a figure formed by connecting an arc and three straight line segments end to end. The pipeline 3 laid in the river bed passes through the well chamber 2 , and maintenance personnel can enter the well chamber 2 to perform maintenance on the pipeline 3 .

In addition, a sump 5 is arranged on the bottom surface of the well chamber 2, and the accumulated water in the well chamber 2 will flow into the sump pit 5 to prevent the accumulation of water on the bottom surface of the well chamber 2 (especially the bottom surface near the pipeline 3), and It is convenient for maintenance personnel to perform maintenance work. Specifically, the sump 5 is located below the shaft 1 and away from the pipeline 3 laid in the river bed.

Wherein, the pipeline 3 is a sewage intercepting pipeline, which is laid in the riverbed along the river course and is 2-3m away from the river sideline. For the construction of the entire sewage interception pipeline, the location of the inspection well may occupy a very small amount of land, and most of the other land is located in the river bed, which can not only reduce the land occupation of the pipeline laying, but also solve the problem in the river bed. The problem of inconvenient pipeline maintenance is applicable to the limited land occupation of river sewage interception projects. For example, the base flow of the river in the northern region is less, and the construction in the river is convenient. The inspection well of the utility model is very beneficial to the construction of urban pipelines.

The preferred embodiment of the utility model has been described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the specific details of the above-mentioned embodiment, and within the scope of the technical concept of the utility model, the technical solution of the utility model can be carried out in many ways. These simple modifications all belong to the protection scope of the present utility model.

In addition, it should be noted that the various specific technical features described in the above specific implementation manners may be combined in any suitable manner if there is no contradiction. In order to avoid unnecessary repetition, the utility model will not further describe various possible combinations.

In addition, any combination of various implementations of the present invention can also be made, as long as they do not violate the idea of the present invention, they should also be regarded as the disclosed content of the present invention.

Claims (9)

1. inspection well, it is characterized in that, described inspection well comprises well shaft (1) and the well chamber (2) that is communicated with the lower end of described well shaft (1), and the pipeline (3) that lays in the riverbed is from described well chamber (2) Pass through inside. 2. The inspection well according to claim 1, characterized in that, the shaft (1) is vertically arranged in the river bank revetment (6). 3. The inspection well according to claim 2, characterized in that, the upper end of the shaft (1) is provided with an entrance hole (4) for maintenance personnel to enter and exit, and the entrance hole (4) is closed by a well cover (7) . 4. The inspection well according to claim 2, characterized in that, the upper end of the shaft (1) is provided with an entrance hole (4) for maintenance personnel to enter and exit, and the inspection shaft also includes an opening from the shaft (1). ) is an extension well (8) that extends upward and communicates with the shaft (1), and the well cover (7) closes the upper end of the extension well (8). 5. The inspection well according to claim 4, characterized in that, the extension well (8) protrudes upward beyond the upper surface of the river bank revetment (6). 6. The inspection well according to claim 2, characterized in that the well chamber (2) extends from the lower end of the wellbore (1) into the river bed. 7. The inspection well according to claim 6, characterized in that, the cross-section of the well chamber (2) taken along the direction perpendicular to the extension of the well chamber is rectangular, circular or dome-shaped. 8. The inspection well according to any one of claims 1 to 7, characterized in that a sump (5) is provided on the bottom surface of the well chamber (2). 9. The inspection well according to claim 8, characterized in that the sump (5) is located below the shaft (1).