CN220080077U

CN220080077U - Precipitation well dado well pipe structure

Info

Publication number: CN220080077U
Application number: CN202321462022.0U
Authority: CN
Inventors: 周文安
Original assignee: Xiangyang Longma Jinyuan Water Conservancy Engineering Co ltd
Current assignee: Xiangyang Longma Jinyuan Water Conservancy Engineering Co ltd
Priority date: 2023-06-09
Filing date: 2023-06-09
Publication date: 2023-11-24
Anticipated expiration: 2033-06-09

Abstract

The utility model relates to the technical field of precipitation wells, in particular to a wall protection well pipe structure of a precipitation well. Comprising the following steps: a well tubular body; the well pipe main body is buried in the dewatering well so as to be attached to the inner wall of the dewatering well; the well pipe main body comprises a metal part and a cement part; the end part of the cement part is provided with a connecting ring; the connecting ring is made of metal; one end of the metal part protrudes out of the ground; the other end of the metal part is connected with the cement part through a connecting ring. In the prior art, the commonly used retaining wall structure is a steel pipe or a cement pipe, but the cost of the steel pipe is higher, and the safety of the cement pipe is poorer. Compared with the prior art, the utility model combines the two, the metal part is arranged at an upper position, and the cement pipe is arranged at a lower position. Therefore, if other construction equipment collides with the device, only the metal part is bumped, deformation is generated at most and cracking is avoided, so that the safety is ensured, and the cost of the cement part is effectively reduced.

Description

Precipitation well dado well pipe structure

Technical Field

The utility model relates to the technical field of precipitation wells, in particular to a wall protection well pipe structure of a precipitation well.

Background

As the height of modern buildings increases and the construction process becomes more complex. During construction, some functional or structural underground structure needs to be built in advance. For example: underground storeroom of residential building, underground garage of commercial building. When these areas are constructed, the groundwater level may have an effect on the construction process of these areas because they are located below the ground.

Conventionally, a dewatering well needs to be excavated at a designated point in advance, a water pump is connected into the dewatering well, and water in the dewatering well is pumped out by the water pump so as to reduce the peripheral groundwater level. And after the underground water level is reduced to the specified degree, the subsequent construction can be performed.

In practical operation, the depth of the dewatering well is often deep, and the surrounding stratum or the underground water can exert a certain degree of pressure on the inner wall of the dewatering well. In order to avoid collapse of the precipitation well, a wall protection well pipe structure is required to be arranged in the precipitation well, and the wall protection well pipe structure resists the peripheral pressure, so that the structural stability of the precipitation well is maintained. The common wall-protecting well pipe structure comprises two types of steel pipes and cement pipes. Steel pipes are highly safe but relatively costly. Cement pipes are less safe but at a relatively lower cost. In actual construction, a plurality of dewatering wells are often required to work simultaneously. Therefore, on the premise of maintaining safety, the cost of the dewatering well is effectively reduced, and the cost of the whole construction project is directly influenced.

Disclosure of Invention

Aiming at the technical problems in the prior art, the utility model provides a precipitation well wall protection well pipe structure.

In order to solve the technical problems, the utility model provides the following technical scheme:

a precipitation well retaining wall well tubular structure comprising: a well tubular body; the well pipe main body is buried in the dewatering well so as to be attached to the inner wall of the dewatering well; the well pipe main body comprises a metal part and a cement part; the end part of the cement part is provided with a connecting ring; the connecting ring is made of metal; one end of the metal part protrudes out of the ground; the other end of the metal part is connected with the cement part through a connecting ring.

When the device is actually applied, the cement part is sent into the dewatering well, and when most of the cement part enters the dewatering well, only the end part is exposed out of the ground, the metal part is dropped at the position corresponding to the cement part. At this time, the two are welded together by a metal connecting ring on the cement section. After the welding is completed, the metal part is sent into the dewatering well, and the end part of the metal part is exposed out of the ground according to the construction requirement. Thus, the cement part completely enters the dewatering well, and the metal part is partially positioned in the dewatering well. The two are matched with each other to support the dewatering well. In the subsequent construction process, if other equipment such as a digging machine carelessly collides with the exposed part of the metal part, the metal part is deformed at most and is possibly repaired, and the metal part is not cracked like cement materials, so that higher safety is maintained. On the other hand, the cost of the cement part is relatively low, and the adoption of the cement part in the region where the dewatering well is deeper contributes to the reduction of the overall cost. In summary, the utility model effectively combines the advantages of both the metal part and the cement part, thereby effectively reducing the cost on the premise of maintaining higher safety.

Further, the device also comprises a connecting structure; the connecting structure is arranged between the metal part and the cement part; one end of the connecting structure is connected with the metal part, and the other end is connected with the connecting ring.

Further, the connecting structure comprises a positioning ring and an adapter ring; the positioning ring corresponds to the end part of the metal part; the positioning ring is provided with a positioning groove; the adapter ring corresponds to the connecting ring; the adapter ring is provided with an adapter plate; the adapter plate corresponds to the positioning groove and stretches into the positioning groove.

Further, the positioning ring is also provided with an exhaust hole; the exhaust holes are arranged along the circumferential direction of the positioning ring; the exhaust hole is communicated with the positioning groove.

Furthermore, the inner wall of the positioning ring is also provided with a drainage surface; the drainage surface is obliquely arranged; the drainage surface is inclined from the inner wall of the positioning ring to the outer wall of the positioning ring.

Furthermore, a connecting plate is also arranged on the adapter ring; one side of the connecting plate is connected with the inner wall of the adapter ring; the other side of the connecting plate is connected with the adapter plate.

Further, the inner wall of the connecting plate is provided with a flow guide surface; the guide surface is obliquely arranged; the flow guide surface is inclined from the adapter plate to the adapter ring.

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

the utility model connects the metal part and the cement part together, and locates the metal part at the shallow part of the dewatering well, and locates the cement part at the deep part of the dewatering well. In the subsequent construction process, if other equipment such as a drilling machine, a digging machine and the like carelessly collide with the metal part, the metal part is deformed at most, and the repairing possibility is provided, so that the metal part is not cracked like cement materials, and the overall stability of the dewatering well is further affected. Thus, the utility model can maintain high safety.

The utility model adopts the cement part in the deep part of the dewatering well, thereby being beneficial to reducing the overall cost.

The inner diameters of the cement parts are uniform, the inner diameters of different positions float to a certain extent, the inner diameters of the metal parts are uniform, and the inner diameters of different positions are basically consistent. Thus, the metal part is arranged at the shallow part of the dewatering well, and the later well sealing operation is facilitated.

Drawings

Fig. 1: integral structure diagram.

Fig. 2: a first cross-sectional view of the connection structure.

Fig. 3: a second cross-sectional view of the connection structure.

In the figure: 1. a well tubular body; 11. a metal part; 12. a cement section; 121. a connecting ring; 2. a connection structure; 21. a positioning ring; 22. an adapter ring; 211. a positioning groove; 221. an adapter plate; 212. an exhaust hole; 222. a connecting plate; 213. a drainage surface; 223. and a flow guiding surface.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

Embodiment one:

a precipitation well retaining wall well tubular structure comprising: a well tubular body 1, a connection 2. The well tubular body 1 comprises a metal part 11, a cement part 12. The metal part 11 can be a steel pipe commonly used in dewatering well construction, and is a steel pipe structure with two ends communicated. The cement section 12 may be a cement pipe commonly used in construction of a dewatering well, and is mainly made of cement, reinforcing steel bars for supporting are laid inside, and metal connecting rings 121 are provided at both ends. Preferably, the cement section 12 may be a high-pressure cement well pipe.

In practical application, the cement part 12 is sent into the dewatering well, and when most of the cement part 12 enters the dewatering well, the end part of the cement part 12 is reserved outside the dewatering well. At this time, the metal part 11 is hoisted to a position corresponding to the cement part 12. Subsequently, the end of the metal part 11 is welded to the connection ring 121 of the cement part 12. When the welding is completed, the metal part 11 is sent into the precipitation environment until the metal part 11 reaches a specified depth. At this time, the cement portion 12 completely enters the precipitation well, the metal portion 11 partially enters the precipitation well, and the end portion of the metal portion 11 is exposed to the outside of the ground. Therefore, in the subsequent construction process, if other equipment such as a drilling machine, a digging machine and the like carelessly collide with the metal part 11, the metal part 11 is deformed at most, and the repairing possibility is provided, so that the metal part is not cracked like cement materials, and the overall stability of a dewatering well is further affected. Thus, the utility model can maintain high safety. On the other hand, the cement section 12 is used in the deep part of the dewatering well, which contributes to the reduction of the overall cost. In summary, the utility model can effectively reduce the overall cost on the premise of maintaining higher safety. Meanwhile, based on the processing reason of the cement pipe, the inner diameter of the cement pipe is uniform, the inner diameters of different positions float to a certain extent, and the inner diameters of the steel pipes are uniform, and the inner diameters of different positions are basically consistent. Thereby, the metal part 11 is placed in the shallow part of the dewatering well, which is helpful for the later well closing operation. Preferably, in the actual construction process, the metal part 11 is arranged in the bottom plate under the elevation of 2 meters, and the cement part 12 is arranged outside the bottom plate under the elevation of 2 meters, namely, the burial depth of the metal part 11 is at least 2 meters, so as to meet the well sealing requirement.

On the other hand, a certain number of water permeable holes should be formed in the cement part 12, and the form shown in the drawings may be adopted so that external groundwater can smoothly enter the well pipe body 1, thereby enabling the water pump to pump out the surrounding groundwater.

Embodiment two:

in practical terms, the steel and cement pipes commonly used in the market are not adequately adapted. The outer diameter of the steel tube was 300mm. There are two kinds of cement pipes, one with an outer diameter of 310mm and the other with an outer diameter of 360mm. Therefore, the welding operation of both is relatively difficult. For facilitating welding, the connection structure 2 may be added between the metal part 11 and the cement part 12.

The connecting structure 2 comprises a positioning ring 21 and an adapter ring 22. The positioning ring 21 corresponds to an end of the metal portion 11. When the retainer ring 21 is placed on the end of the metal part 11, one end of the retainer ring 21 can be sufficiently fitted to the end of the metal part 11. The positioning ring 21 is provided with a positioning groove 211. The positioning groove 211 is formed at one end of the positioning ring 21 away from the metal portion 11. The sidewall of the positioning ring 21 is also provided with an exhaust hole 212. The number of the air vent holes 212 is plural, and the air vent holes 212 are provided along the circumferential direction of the retainer ring 21. The exhaust hole 212 communicates with the positioning groove 211. Thus, the inside of the positioning groove 211 is communicated with the outside through the vent hole 212. The inner wall of the positioning ring 21 is also provided with a drainage surface 213, and the drainage surface 213 is inclined from the inner wall of the positioning ring 21 to the outer wall of the positioning ring 21.

The adapter ring 22 corresponds to the connection ring 121 on the cement section 12. When the adapter ring 22 is placed on the end of the cement section 12, the adapter ring 22 is able to fully conform to the attachment ring 121. The adapter ring 22 is of two different types. One is to provide only the adapter plate 221. The adapter plate 221 is directly connected to the adapter ring 22. Meanwhile, the adapter plate 221 corresponds to the positioning groove 211 so as to be capable of extending into the positioning groove 211. Both the adapter plate 221 and the connection plate 222 are provided. The connection plate 222 is disposed between the inner wall of the adapter ring 22 and the adapter plate 221. One side of the connection plate 222 is connected to the inner wall of the adapter ring 22, and the other side is connected to the adapter plate 221. The inner wall of the connecting plate 222 is also provided with a guide surface 223, the guide surface 223 is obliquely arranged, and the guide surface 223 is obliquely arranged from the adapter plate 221 to the adapter ring 22.

Specifically, the positioning ring 21 is placed at one end of the metal part 11 in advance, and the positioning ring 21 and the metal part 11 are connected together by welding. If a 310mm cement pipe is selected for the cement section 12, the adapter ring 22 is selected to not include the connection plate 222. If a 360mm cement pipe is selected for the cement section 12, the adapter ring 22 including the connection plate 222 is selected. After the cement section 12 is placed in the dewatering well, the adapter ring 22 is placed at the end of the cement section 12. The adapter ring 22 is welded to the connecting ring 121 of the cement section 12. When the welding is completed, the metal part 11 welded with the positioning ring 21 is hoisted to a corresponding position, so that the adapter plate 221 extends into the positioning groove 211. In the process that the adapter plate 221 extends into the positioning groove 211, the air in the positioning groove 211 is timely discharged through the air discharge hole 212, so that the situation that the adapter plate 221 cannot extend into the positioning groove 211 completely due to air pressure in the positioning groove 211 is avoided. In this way, the relative position between the metal part 11 and the cement part 12 is positioned so that the axes of the metal part 11 and the cement part 12 can overlap. At this time, the bonding region between the retainer ring 21 and the adapter ring 22 is welded together by welding, thereby connecting the metal part 11 and the cement part 12 together. Thereby, the welding operation when the metal part 11 and the cement part 12 are connected is facilitated by the connection structure 2.

After the metal part 11 is connected with the cement part 12, the metal part 11 is pushed until the metal part 11 protrudes to a specified depth. Since the outer diameter of the cement portion 12 is large, the outer diameter of the metal portion 11 is small, and it is necessary to fill the gap between the metal portion 11 and the inner wall of the precipitation well with a building material such as gravel.

When the well pipe body 1 is installed, the water in the dewatering well is pumped out by the water pump, and the water flow can be guided by the guide surface 213 and the guide surface 223, so that the water flow can smoothly flow into the metal part 11 from the cement part 12.

It should be noted that, if the depth of the dewatering well is too deep, the combination of the metal part 11 and the cement part 12 cannot meet the depth of the dewatering well, and the actual requirement is met by increasing the number of the cement parts 12.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims

1. A precipitation well wall protection well tubular structure, characterized in that: comprising the following steps: a well tubular body (1);

the well pipe main body (1) is buried in the dewatering well so as to be attached to the inner wall of the dewatering well;

the well pipe main body (1) comprises a metal part (11) and a cement part (12);

the end part of the cement part (12) is provided with a connecting ring (121);

the connecting ring (121) is made of metal;

one end of the metal part (11) protrudes out of the ground;

the other end of the metal part (11) is connected with the cement part (12) through the connecting ring (121).

2. A precipitation well retaining wall well tubular structure according to claim 1, wherein: also comprises a connecting structure (2);

the connecting structure (2) is arranged between the metal part (11) and the cement part (12);

one end of the connecting structure (2) is connected with the metal part (11), and the other end is connected with the connecting ring (121).

3. A precipitation well retaining wall well tubular structure according to claim 2, wherein: the connecting structure (2) comprises a positioning ring (21) and an adapter ring (22);

the positioning ring (21) corresponds to the end of the metal part (11);

a positioning groove (211) is formed in the positioning ring (21);

the adapter ring (22) corresponds to the connecting ring (121);

an adapter plate (221) is arranged on the adapter ring (22);

the adapter plate (221) corresponds to the positioning groove (211) so as to extend into the positioning groove (211).

4. A precipitation well retaining wall well tubular structure according to claim 3, wherein: the positioning ring (21) is also provided with an exhaust hole (212);

the exhaust holes (212) are arranged along the circumferential direction of the positioning ring (21);

the exhaust hole (212) is communicated with the positioning groove (211).

5. A precipitation well retaining wall well tubular structure according to claim 3, wherein: the inner wall of the positioning ring (21) is also provided with a drainage surface (213);

the drainage surface (213) is obliquely arranged;

the drainage surface (213) is inclined from the inner wall of the positioning ring (21) to the outer wall of the positioning ring (21).

6. A precipitation well retaining wall well tubular structure according to claim 3, wherein: a connecting plate (222) is further arranged on the adapter ring (22);

one side of the connecting plate (222) is connected with the inner wall of the adapter ring (22);

the other side of the connecting plate (222) is connected with the adapter plate (221).

7. A precipitation well retaining wall well tubular structure according to claim 6, wherein: the inner wall of the connecting plate (222) is provided with a flow guide surface (223);

the guide surface (223) is obliquely arranged;

the flow guiding surface (223) is inclined from the adapter plate (221) to the adapter ring (22).