Inverted wall trunk structure

Abstract

The utility model discloses an upside-down wall trunk structure, which relates to the technical field of upside-down well structures and comprises an upside-down wall body which is made of concrete materials and is of a closed trunk structure. The grouting curtain is arranged on the periphery of the upside-down wall body; the plurality of horizontal supports are fixedly mounted on the inner wall of the inverted wall body; the strain gauge is fixedly arranged in the upside-down wall body through a first mounting assembly; and the displacement meter is fixedly arranged in the upside-down wall body through a second mounting assembly. According to the trunk structure with the wall hung upside down, the strainometer and the displacement meter are arranged in the trunk structure so that the health state of the structure can be conveniently monitored in real time, a regular inspection mechanism is established, the structure can be conveniently maintained and repaired, and the long-term stability of the structure is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of inverted well structure, and in particular to an inverted wall cofferdam structure. Background Technology

[0002] The inverted wall cofferdam structure is a special underground engineering structure, typically used for groundwater level control and soil support. The upper part of this structure is a wall, while the bottom slopes outwards, creating an "inverted" shape. This helps enhance stability, effectively resist soil pressure, prevent soil collapse, and improve the safety of the cofferdam. Its structural components mainly include the cofferdam wall, the base slab, and the drainage system. The cofferdam wall is usually made of concrete or steel, possessing sufficient strength and rigidity to withstand the pressure of the surrounding soil. The base slab, forming the bottom of the cofferdam, can withstand the load from above and maintain overall stability. The drainage system prevents excessively high water levels from affecting structural stability.

[0003] A search revealed a Chinese patent, CN 210658410 U, which describes an inverted wall cofferdam structure, belonging to the field of exploration and construction technology. This invention addresses the shortcomings of conventional exploration techniques, such as significant disturbance during deep sand layer sampling, limited sample quantity, and unsatisfactory field testing conditions. It proposes an inverted wall cofferdam structure, including a foundation consisting of a cover layer interspersed with a relatively impermeable sand layer. The structure also includes an inverted wall and a grouting curtain. The inverted wall is a reinforced concrete structure, forming a closed cofferdam on all sides. The inverted wall is installed from top to bottom of the cover layer, with its thickness increasing with depth. The grouting curtain is installed around the outer perimeter of the inverted wall, forming a closed, seepage-proof curtain that inserts into or passes through the relatively impermeable sand layer.

[0004] The aforementioned inverted cofferdam structure is not convenient for long-term maintenance of structural stability during actual use, which poses certain safety hazards. Therefore, the above-mentioned device needs to be improved. Utility Model Content

[0005] The purpose of this utility model is to provide an inverted wall cofferdam structure to solve the problems mentioned in the background art.

[0006] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0007] A type of inverted wall cofferdam structure, including

[0008] The inverted wall is made of concrete and is a closed well structure.

[0009] A grouting curtain is installed around the outside of the inverted wall.

[0010] Horizontal supports, all of which are fixedly installed on the inner wall of the inverted wall;

[0011] The strain gauge is fixedly installed inside the inverted wall body by a first mounting component;

[0012] The displacement gauge is fixedly installed inside the inverted wall body by a second mounting component.

[0013] Preferably, the inverted wall is arranged from top to bottom, and the thickness of the inverted wall increases with the increase of soil depth.

[0014] Preferably, the horizontal support is made of steel.

[0015] Preferably, a ring beam is fixedly installed at the top of the inverted wall.

[0016] Preferably, a base plate is fixedly installed on the bottom wall of the inverted wall body. The base plate is made of concrete and has steel bars inside.

[0017] Preferably, a dewatering well is also provided at the bottom of the inverted wall.

[0018] Preferably, the first mounting component includes a first positioning plate, a fixing block, and a first fixing screw. The fixing block is fixedly disposed on the upper wall of the first positioning plate. A mounting hole is provided on one side wall of the fixing block. The strain gauge is connected to the mounting hole. A first through-hole is provided on the upper wall of the first positioning plate. The first fixing screw is disposed inside the first through-hole.

[0019] Preferably, the second mounting assembly includes a second positioning plate, a mounting cylinder, and a second fixing screw. The outer wall of the mounting cylinder is fixedly connected to one side wall of the second positioning plate. The displacement gauge is disposed inside the mounting cylinder. A second opening is provided on one side wall of the second positioning plate, and the second fixing screw is disposed inside the second opening.

[0020] Preferably, the strain gauge is installed on the inner wall of the middle, upper and lower ends of the inverted wall body.

[0021] Preferably, the strain gauge is mounted on the base plate.

[0022] Preferably, the strain gauge is mounted on a horizontal support.

[0023] Preferably, the displacement gauge is installed in both horizontal and vertical configurations.

[0024] Compared with the prior art, this utility model has the following advantages:

[0025] This invention facilitates real-time monitoring of the structural health by installing strain gauges and displacement gauges inside the well structure, and establishes a regular inspection mechanism to facilitate the maintenance and repair of the structure, thus ensuring its long-term stability. Attached Figure Description

[0026] Figure 1 This is a schematic cross-sectional view of an inverted wall cofferdam structure.

[0027] Figure 2 A schematic diagram of a displacement gauge and its second mounting component in an inverted wall cofferdam structure;

[0028] Figure 3 This is a schematic diagram of a strain gauge and its first mounting component in an inverted wall cofferdam structure.

[0029] In the diagram: 1. Inverted wall structure; 2. Grouting curtain; 3. Horizontal support; 4. Ring beam; 5. Base plate; 6. Dewatering well; 7. Strain gauge; 8. Displacement gauge; 9. First positioning plate; 10. Fixing block; 11. First fixing screw; 12. Second positioning plate; 13. Mounting cylinder; 14. Second fixing screw. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1:

[0032] Please see Figures 1-3 As shown, this utility model is an inverted wall cofferdam structure, including...

[0033] Inverted wall 1, made of concrete, is a closed well structure;

[0034] Grouting curtain 2 is set on the outer perimeter of the inverted wall 1;

[0035] Horizontal support 3, several horizontal supports 3 are fixedly installed on the inner wall of the inverted wall body 1;

[0036] Strain gauge 7 is fixedly installed inside the inverted wall 1 by the first mounting component;

[0037] Displacement gauge 8 is fixedly installed inside the inverted wall 1 by a second mounting component.

[0038] The inverted wall 1 is set from top to bottom, and the thickness of the inverted wall 1 increases with the increase of soil depth.

[0039] Horizontal support 3 is made of steel.

[0040] A ring beam 4 is fixedly installed at the top of the inverted wall 1.

[0041] A base plate 5 is fixedly installed on the bottom wall of the inverted wall 1. The base plate 5 is made of concrete and has steel bars inside.

[0042] A dewatering well 6 is also installed at the bottom of the inverted wall 1.

[0043] The first mounting assembly includes a first positioning plate 9, a fixing block 10, and a first fixing screw 11. The fixing block 10 is fixedly mounted on the upper wall of the first positioning plate 9. A mounting hole is provided on one side wall of the fixing block 10, and the strain gauge 7 is connected to the mounting hole. A first through-hole is provided on the upper wall of the first positioning plate 9, and the first fixing screw 11 is located inside the first through-hole.

[0044] The second mounting assembly includes a second positioning plate 12, a mounting cylinder 13, and a second fixing screw 14. The outer wall of the mounting cylinder 13 is fixedly connected to one side wall of the second positioning plate 12. The displacement gauge 8 is disposed inside the mounting cylinder 13. A second opening is provided on one side wall of the second positioning plate 12, and the second fixing screw 14 is disposed inside the second opening.

[0045] Strain gauge 7 is installed on the inner walls of the middle, upper and lower ends of the inverted wall body 1.

[0046] Strain gauge 7 is mounted on base plate 5.

[0047] Strain gauge 7 is mounted on horizontal support 3.

[0048] The displacement gauge 8 can be installed horizontally or vertically.

[0049] As can be seen from the above, by setting strain gauges 7 and displacement gauges 8, it is convenient to monitor the health status of the structure in real time. By establishing a regular inspection mechanism, it is convenient to maintain and repair the structure, and ensure its long-term stability.

[0050] Strain gauge 7 and displacement gauge 8 can transmit the detected data to the terminal via linear connection or wireless communication connection;

[0051] Specifically, strain gauges 7 are installed on the inner walls of the middle, upper, and lower ends of the inverted wall 1 to monitor the bending strain of the well wall and assess its stress condition; strain gauges 7 are also installed on the base plate 5 to monitor the stress distribution of the base plate 5 and identify potential concentrated load areas; and strain gauges 7 are installed on the horizontal support 3 to monitor the stress condition of the support structure and ensure its effective support of the well structure. Displacement gauges 8 are installed both laterally and longitudinally, facilitating the monitoring of the wall's lateral displacement to assess the impact of earth pressure on the structure, and also monitoring the overall settlement and deformation of the well to ensure the verticality and stability of the structure.

[0052] By properly configuring strain gauges 7 and displacement gauges 8, the stress and deformation information of the cofferdam structure can be obtained in a timely manner, providing data support for maintenance and reinforcement, and further enhancing the stability of the inverted wall cofferdam structure.

[0053] The inverted wall structure in this invention adopts a combination of permanent and temporary structures, and will later serve as the formal well structure.

[0054] Example 2:

[0055] Combining Embodiment 1 with practical application of this device, the effects of installing strain gauge 7 and displacement gauge 8 can be reflected through the following specific data:

[0056] The data for strain gauge 7 are as follows:

[0057] Installation location: different heights of the well wall (such as bottom, middle and top).

[0058] Monitoring cycle: Data is recorded daily, weekly, or monthly.

[0059] The specific test data is as follows:

[0060] time Location Strain value (με) Remark Day 1 bottom 50 normal Day 1 middle 70 normal Day 1 top 40 normal Day 30 bottom 120 Stress concentration begins to appear Day 30 middle 90 Slight increase Day 30 top 60 normal

[0061] As can be seen from the above, the strain value at the bottom increased significantly on the 30th day, which may indicate that the structural safety of this area needs to be checked.

[0062] The data from displacement gauge 8 are as follows:

[0063] Installation location: edge and center of the manhole.

[0064] Monitoring cycle: Record data daily, weekly, or monthly.

[0065] The specific test data is as follows:

[0066] time Location Displacement value (mm) Remark Day 1 edge 0 normal Day 1 center 0 normal Day 30 edge 5 Slight settlement Day 30 center 2 normal

[0067] As shown above, the displacement at the edge indicates a settlement of 5mm, and the possibility of uneven settlement needs to be considered.

[0068] In summary, by setting up displacement gauges 8 and strain gauges 7, the structural state of the inverted wall cofferdam can be obtained in a timely manner, which further facilitates personnel to discover and solve problems in a timely manner, and further enhances the stability of the cofferdam structure.

[0069] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0070] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.

[0071] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0072] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0073] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0074] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0075] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hanging wall enclosure structure, characterized by: The utility model relates to a kind of inverted wall body (1), the inverted wall body (1) is made of concrete material, is closed enclosure structure; Grouting curtain (2), the grouting curtain (2) is arranged at the periphery of inverted wall body (1); Horizontal support (3), several horizontal supports (3) are fixedly installed in the inner wall of inverted wall body (1); Strain gauge (7), the strain gauge (7) is fixedly arranged in the inside of inverted wall body (1) by first installation component; Displacement meter (8), the displacement meter (8) is fixedly arranged in the inside of inverted wall body (1) by second installation component. The inverted wall body (1) is arranged from top to bottom, and the wall thickness of inverted wall body (1) increases with the increase of soil depth.

2. A wall-hung enclosure structure according to claim 1, wherein: The horizontal support (3) is made of steel material.

3. A wall-hung enclosure structure according to claim 1, wherein: The inverted wall body (1) top is fixedly provided with ring beam (4).

4. A wall-hung enclosure structure according to claim 1, wherein: The bottom wall of inverted wall body (1) is fixedly installed with bottom plate (5), the bottom plate (5) is made of concrete material, and the inside of bottom plate (5) is provided with reinforcing steel bar.

5. A wall-hung enclosure structure according to claim 1, characterized in that: The bottom of inverted wall body (1) is also provided with precipitation well (6).

6. A wall-hung enclosure structure according to claim 5, wherein: The first installation component includes first positioning plate (9), fixed block (10) and first fixed screw (11), the fixed block (10) is fixedly arranged on the upper wall of first positioning plate (9), the fixed block (10) one side wall is provided with mounting hole, the strain gauge (7) is connected with mounting hole, the first positioning plate (9) upper wall is provided with first through hole, and the first fixed screw (11) is arranged in the inside of first through hole.

7. A wall-hung enclosure structure according to claim 1, wherein: The second installation component includes second positioning plate (12), mounting cylinder (13) and second fixed screw (14), the mounting cylinder (13) outer wall is fixedly connected with one side wall of second positioning plate (12), the displacement meter (8) is arranged in mounting cylinder (13), one side wall of second positioning plate (12) is provided with second through hole, and the second fixed screw (14) is arranged in second through hole.

8. A wall-hung enclosure structure according to claim 1, wherein: ​

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