Working well structure

Abstract

The working well structure comprises an open caisson, a plurality of supporting assemblies and a bottom plate, the open caisson comprises an inner wall plate and an outer wall plate, the radial section of the inner wall plate is annular, the radial section of the outer wall plate is annular, the inner wall plate and the outer wall plate are equal in height, the outer diameter of the inner wall plate is smaller than the inner diameter of the outer wall plate, and the inner wall plate is sleeved with the outer wall plate. A placing groove with an annular radial section is formed between the inner wall plate and the outer wall plate, and the placing groove is filled with a pouring object; the multiple supporting assemblies are arranged in the pouring object and arranged around the inner wall plate in the circumferential direction, each supporting assembly comprises an installation sleeve piece and a supporting piece, the supporting pieces are arranged in the installation sleeve pieces in a penetrating mode, the outer diameters of the supporting pieces are equal to the inner diameters of the installation sleeve pieces, and after the supporting pieces are arranged in the installation sleeve pieces in a penetrating mode, the bottom ends of the supporting pieces exceed the bottom of the open caisson; the outer diameter of the bottom plate is equal to the inner diameter of the inner wall plate; the supporting assembly is arranged in the containing groove and used for reinforcing the inner wall plate and the outer wall plate of the open caisson. The supporting assembly can also prevent sludge from flowing back into the open caisson, and operation of constructors is prevented from being affected.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering, specifically to a working well structure. Background Technology

[0002] With the development of urbanization, many large drainage pipelines are designed for waterfront areas such as riverbanks and coastlines. The construction of these large drainage pipes requires the construction of a working well to facilitate the laying of the pipes. The general construction method involves building the working well above the drainage pipe using the reverse construction method and the caisson method. Because the working wells are very deep and located in waterfront areas, and because riverbanks and coastlines often have deep layers of silt, clay, and other soft soil, when the working well is dug deep enough, silt can flow back into it, making work difficult. If the silt flow is too severe, it can even cause the working well to collapse, endangering the safety of construction workers.

[0003] Common measures to prevent silt backflow include: 1. High-pressure jet grouting support: One to two rings of high-pressure jet grouting piles are driven outside the well pit, injecting cement slurry into the soil layer and mixing it with the soil to form a continuous, overlapping cement-reinforced structure, thus solidifying the surrounding soil. However, this method is costly and has a long construction period. 2. Concrete pile support: One ring of concrete piles is driven outside the well pit, with the support piles driven into the underlying rock layer to prevent silt from flowing in before the working well is constructed. However, this method also requires a large amount of concrete, resulting in high construction costs. 3. Larssen sheet pile support: One ring of Larssen sheet piles is driven outside the well pit to act as a water-stop curtain and bear the lateral pressure of the surrounding soil. However, this support method is only suitable for wells in shallow strata with limited applicable depth.

[0004] Currently, most measures to prevent sludge backflow are costly, have long construction periods, and are applicable to shallow wells, which cannot meet the construction requirements of other deep drainage pipes. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a working well structure.

[0006] The objective of this utility model is achieved through the following solution:

[0007] A working well structure includes: a caisson, multiple support components, and a base plate. The caisson includes an inner wall plate with a radially annular cross-section and an outer wall plate with a radially annular cross-section. The inner wall plate and the outer wall plate are of the same height, and the outer diameter of the inner wall plate is smaller than the inner diameter of the outer wall plate. The inner wall plate is fitted inside the outer wall plate, and a placement groove with a radially annular cross-section is formed between the inner wall plate and the outer wall plate. The placement groove is filled with a cast-in-place material. Multiple support components are disposed within the cast-in-place material and are arranged circumferentially around the inner wall plate. Each support component includes an installation kit and a support member. The support member is inserted into the installation kit, and the outer diameter of the support member is equal to the inner diameter of the installation kit. After the support member is inserted into the installation kit, the bottom end of the support member extends beyond the bottom of the caisson. The outer diameter of the base plate is equal to the inner diameter of the inner wall plate, and the base plate is sealed to the bottom of the inner wall plate.

[0008] In one embodiment, the outer diameter of the protective plate is larger than the inner diameter of the base plate but smaller than the outer diameter of the inner wall plate. The protective plate is attached to one side of the base plate and its periphery is fixed to the inner wall plate.

[0009] In one embodiment, the support is inserted through the mounting kit, with the top of the support extending beyond the top of the caisson.

[0010] In one embodiment, the mounting kit includes a sleeve and a sealing plate. The inner diameter of the sleeve is the same as the outer diameter of the support. The sealing plate is placed on the bottom of the sleeve. After the support is inserted into the sleeve, the support pushes open the sealing plate, causing the sealing plate to detach from the sleeve, and the bottom end of the support protrudes from the sleeve.

[0011] In one embodiment, the bottom of the sleeve is also provided with a groove, and the periphery of the sealing plate (212) is covered with the groove.

[0012] In one embodiment, an adhesive layer is also included, which is adhered to the groove, and the periphery of the sealing plate is disposed on the adhesive layer.

[0013] In one embodiment, the mounting kit and the support are detachably connected.

[0014] Compared with the prior art, the present invention has at least the following advantages:

[0015] The present invention discloses a working well structure by setting up multiple support components, which are assembled with installation kits and support members. The support components are placed in the placement groove between the inner wall panel and the outer wall panel, which can strengthen the inner wall panel and the outer wall panel of the caisson. At the same time, the support components can also be used to prevent silt from flowing back into the caisson and avoid affecting the operation of construction personnel. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a cross-sectional view of the working well structure of this utility model;

[0018] Figure 2 for Figure 1 A top view of the working well structure in the middle;

[0019] Figure 3 for Figure 1 A partial cross-sectional view of the working well structure in the image;

[0020] In the attached drawings, the reference numerals are: 1. Caisson; 11. Inner wall panel; 12. Outer wall panel; 13. Placement trough;

[0021] 2. Support components; 21. Installation kit; 211. Sleeve; 2111. Groove; 212. Sealing plate; 22. Support component; 3. Base plate; 4. Cast-in-place material; 5. Protective plate; 6. Adhesive layer. Detailed Implementation

[0022] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0023] It should be noted that all directional indicators in this utility model embodiment, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicator will also change accordingly.

[0024] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0025] To further understand the utility model's content, features, and effects, the following embodiments are provided, along with detailed descriptions in conjunction with the accompanying drawings:

[0026] like Figure 1 and Figure 2 As shown, Figure 1 This is a cross-sectional view of the working well structure of this utility model. Figure 2 This is a top view of the working well structure of this utility model. This utility model provides a working well structure, including: a caisson 1, multiple support components 2, and a base plate 3. In specific implementation, the caisson 1 is set below the ground surface, allowing construction workers to carry out construction work inside the caisson 1. Multiple support components 2 are set on the caisson 1 to prevent silt from flowing back into the caisson 1 and to prevent construction work from being affected. The base plate 3 is used to seal the bottom of the caisson 1, so that construction workers can work inside the caisson 1.

[0027] Specifically, such as Figure 1 and Figure 2 As shown, the caisson 1 includes an inner wall plate 11 with a radially annular cross-section and an outer wall plate 12 with a radially annular cross-section. The inner wall plate 11 and the outer wall plate 12 are of the same height, and the outer diameter of the inner wall plate 11 is smaller than the inner diameter of the outer wall plate 12. The inner wall plate 11 is fitted into the outer wall plate 12, such that the two ends of the inner wall plate 11 are flush with the two ends of the outer wall plate 12. A placement groove 13 with a radially annular cross-section is formed between the inner wall plate 11 and the outer wall plate 12. Multiple support components 2 are disposed in the placement groove 13 and are arranged circumferentially around the inner wall plate 11. The placement groove 13 is filled with a slurry 4 to fix the support components 2 in the slurry 4. Each support component 2 includes an installation kit 21 and a support member 22, with the support member 22 passing through the corresponding installation kit 21. Furthermore, the outer diameter of the support member 22 is equal to the inner diameter of the mounting kit 21, and after the support member 22 is inserted into the mounting kit 21, the bottom end of the support member 22 extends beyond the bottom of the caisson 1. It should be noted that, as... Figure 1As shown, the bottom end of the support member 22 extends beyond the bottom of the inner wall panel 11 and the outer wall panel 12. During actual construction, the bottom end of the support member 22 needs to be inserted into the soil layer through the bottom of the inner wall panel 11 and the outer wall panel 12 to fix the caisson 1, prevent the caisson 1 from becoming unstable during construction, and also prevent the silt from flowing back and seeping into the caisson 1 from the installation kit 21.

[0028] In this caisson 1, both the inner wall panel 11 and the outer wall panel 12 are cast from reinforced concrete, and the casting 4 is made of concrete. During the construction of the caisson 1, installation kits 21 are pre-embedded in the placement groove 13 formed between the inner wall panel 11 and the outer wall panel 12, and then concrete is poured into the placement groove 13 to connect the inner wall panel 11 and the outer wall panel 12 into a whole, ultimately forming the caisson 1. During construction, the inner wall panel 11 and the outer wall panel 12 can be excavated to lay drainage pipes and other equipment.

[0029] It should be noted that before construction personnel enter the caisson 1, the support member 22 must be inserted into the installation kit 21 to reinforce the support between the inner wall panel 11 and the outer wall panel 12 of the caisson 1. Simultaneously, the support assembly 2 formed by the installation kit 21 and the support member 22 can also prevent silt from flowing back into the caisson 1, thus avoiding interference with the construction personnel's work. In this embodiment, the support member 22 is an 80mm galvanized steel pipe.

[0030] Furthermore, such as Figure 1 As shown, the outer diameter of the base plate 3 is equal to the inner diameter of the inner wall plate 11, and the base plate 3 is sealed to the bottom of the inner wall plate 11. In this embodiment, the base plate 3 is a reinforced concrete base plate. By using the base plate 3, the caisson 1 is formed into a sealed whole except for the top, effectively preventing silt from flowing back into the caisson 1 from the bottom.

[0031] Preferably, such as Figure 1 As shown, the working well structure also includes a protective plate 5. The outer diameter of the protective plate 5 is larger than the inner diameter of the bottom plate 3 but smaller than the outer diameter of the inner wall plate 11. The protective plate 5 is attached to one side of the bottom plate 3 and the periphery of the protective plate 5 is fixed to the inner wall plate 11.

[0032] In this embodiment, the protective plate 5 is an underwater concrete plate. Since the caisson 1 is continuously operating below the ground surface, ordinary concrete plates are easily eroded by water. In order to prevent the bottom plate 3 from being eroded by groundwater, the protective plate 5 made of underwater concrete is used to further seal the caisson 1 and ensure that the construction inside the caisson 1 is not affected.

[0033] Specifically, such as Figure 1As shown, after the support member 22 is inserted into the installation kit 21, the top of the support member 22 extends beyond the top of the caisson 1. During actual construction, after the support member 22 is inserted into the installation kit 21, a portion of the support member 22 needs to be reserved to extend beyond the top of the caisson 1. Since during the construction of the caisson 1, if a part of the support member 22 breaks or is subjected to uneven stress, the inner wall panel 11 and the outer wall panel 12 may be damaged. The reserved portion of the support member 22 allows construction personnel to easily remove the support member 22, and at the same time, concrete can be injected into the installation kit 21 to reinforce the inner wall panel 11 and the outer wall panel 12.

[0034] Specifically, such as Figure 3 As shown, the installation kit 21 includes a sleeve 211 and a sealing plate 212. The inner diameter of the sleeve 211 is the same as the outer diameter of the support member 22. The sealing plate 212 covers the bottom of the sleeve 211. After the support member 22 is inserted into the sleeve 211, the support member 22 pushes open the sealing plate 212, causing the sealing plate 212 to detach from the sleeve 211, and the bottom end of the support member 22 protrudes from the sleeve 211. After the sealing plate 212 detaches from the sleeve 211, since the inner diameter of the sleeve 211 is the same as the outer diameter of the support member 22, there is no gap between the outer wall of the support member 22 and the inner wall of the sleeve 211, preventing sludge from flowing back into the working well through the gap between the support member 22 and the sleeve 211. In this embodiment, the sleeve 211 is a ∅90 thin-walled steel sleeve.

[0035] During actual construction, when the casing 211 is to be pre-embedded into the caisson 1, the support member 22 has not yet been inserted. Therefore, to prevent soil from entering the casing 211 when it sinks, a sealing plate 212 is used to prevent soil from entering the casing 211. In this embodiment, the sealing member 2111 is a thin-walled steel sheet.

[0036] Among them, the bottom of the sleeve 211 is also provided with a groove 2111, and the periphery of the sealing plate 212 is covered with the groove 2111.

[0037] Preferably, such as Figure 3 As shown, the working well structure also includes an adhesive layer 6, which is disposed in the groove 2111. One side of the adhesive layer 6 is adhered to the groove 2111, and the periphery of the sealing plate 212 is disposed on the adhesive layer 212, that is, the periphery of the sealing plate 212 is bonded to the adhesive layer 6. To prevent the sealing plate 212 from falling off when the mounting kit 21 sinks, the adhesive layer 6 is used to reinforce the connection between the sealing plate 23 and the groove 2111. In this embodiment, the adhesive layer 6 is made of tile adhesive. When the support member 22 is inserted, the support member 22 can push open the sealing plate 212 through impact, thereby allowing it to pass through the sleeve 211 and insert into the soil layer.

[0038] Preferably, the mounting kit 21 and the support member 22 are detachably connected. After the construction of the caisson 1 is completed, the mounting kit 21 can be removed for reuse, saving production costs.

[0039] In summary, the working well structure of this utility model, by setting up multiple support components 2 composed of installation kit 21 and support member 22, and placing the support components 2 in the placement groove 13 between the inner wall plate 11 and the outer wall plate 12, plays a role in reinforcing the inner wall plate 11 and the outer wall plate 12 of the caisson 1. At the same time, the support components 2 can also be used to prevent silt from flowing back into the caisson 1, so as to avoid affecting the operation of construction personnel.

[0040] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A working well structure, characterized in that, include: The caisson (1), multiple support components (2), and a base plate (3) are provided. The caisson (1) includes an inner wall plate (11) with a radially annular cross-section and an outer wall plate (12) with a radially annular cross-section. The inner wall plate (11) and the outer wall plate (12) are of the same height. The outer diameter of the inner wall plate (11) is smaller than the inner diameter of the outer wall plate (12). The inner wall plate (11) is fitted into the outer wall plate (12), and a placement groove (13) with a radially annular cross-section is formed between the inner wall plate (11) and the outer wall plate (12). The placement groove (13) is filled with cast-in-place material (4). Multiple support components (2) are disposed on the cast-in-place material (4). The inner wall panel (11) is surrounded by multiple support components (2) arranged circumferentially. Each support component (2) includes an installation kit (21) and a support member (22). The support member (22) is inserted into the installation kit (21), and the outer diameter of the support member (22) is equal to the inner diameter of the installation kit (21). After the support member (22) is inserted into the installation kit (21), the bottom end of the support member (22) extends beyond the bottom of the caisson (1). The outer diameter of the bottom plate (3) is equal to the inner diameter of the inner wall panel (11), and the bottom plate (3) is sealed to the bottom of the inner wall panel (11).

2. The working well structure according to claim 1, characterized in that, It also includes a protective plate (5). The outer diameter of the protective plate (5) is larger than the inner diameter of the base plate (3) but smaller than the outer diameter of the inner wall plate (11). The protective plate (5) is attached to one side of the base plate (3) and the periphery of the protective plate (5) is fixed to the inner wall plate (11).

3. The working well structure according to claim 1, characterized in that, The support member (22) is inserted through the mounting kit (21), and the top of the support member (22) extends beyond the top of the caisson (1).

4. The working well structure according to claim 1, characterized in that, The installation kit (21) includes a sleeve (211) and a sealing plate (212). The inner diameter of the sleeve (211) is the same as the outer diameter of the support (22). The sealing plate (212) covers the bottom of the sleeve (211). After the support (22) is inserted into the sleeve (211), the support (22) pushes open the sealing plate (212), so that the sealing plate (212) is detached from the sleeve (211). The bottom end of the support (22) protrudes from the sleeve (211).

5. A working well structure according to claim 4, characterized in that, The bottom of the sleeve (211) is also provided with a groove (2111), and the periphery of the sealing plate (212) is covered by the groove (2111).

6. A working well structure according to claim 5, characterized in that, It also includes an adhesive layer (6), which is adhered to the groove (2111), and the periphery of the sealing plate (212) is disposed on the adhesive layer (6).

7. A working well structure according to claim 1, characterized in that, The mounting kit (21) and the support (22) are detachably connected.

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