A large-scale well sinking and drainage sinking centralized control system

Abstract

The utility model discloses a large -scale sinking well drainage sinking centralized control system, and sinking well foundation structure includes well wall, multiple first partition wall and multiple second partition wall of being located in well wall, to separate the space surrounded by well wall into multiple well holes, first partition wall sets up along first direction, and second partition wall sets up along second direction, and first direction and second direction form certain angle, control system includes multiple row of slag main pipe, and row of slag main pipe is located in first partition wall and / or second partition wall, and one end extends to sand trap, multiple water supply main pipe, and water supply main pipe is located in first partition wall and / or second partition wall, and one end is connected water supply device, wherein, at least one in adjacent two peripheral well holes is equipped with sand pumping device, and the internal well hole is equipped with sand pumping device, and sand pumping device includes water supply small pipe and row of slag small pipe, and multiple water supply small pipes are connected with one water supply main pipe correspondingly, and multiple row of slag small pipes are connected with one row of slag main pipe correspondingly, and have communication state and barrier state respectively.

Description

Technical Field

[0001] This utility model relates to the field of caisson construction technology, and in particular to a centralized control system for dewatering and sinking of large caissons. Background Technology

[0002] Caisson foundations, due to their high stability and structural safety, are widely used in large-scale bridge projects, urban water treatment, and underground space development. For ultra-large caisson foundations, depending on the sinking depth, geological conditions, and environment, two methods are typically used for sinking: dewatering and soil removal, and non-dewatering and soil removal. In the dewatering process, high-pressure water jets are usually used to flush the soil inside the caisson into a slurry, which is then pumped out by a sewage pump.

[0003] In the existing technology, due to the large size of the caisson and the large number of well holes, and the fact that each well hole is equipped with a separate slag discharge pipe and water supply pipe, and that the water supply pipe and slag discharge pipe are directly connected to the water supply system and the sedimentation area respectively, the pipeline setup is complicated, the construction cost is high, and a large number of operators are required, making the operation cumbersome and the construction efficiency low. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a centralized control system for the dewatering and sinking of large caissons. This centralized control system simplifies pipeline setup, reduces construction costs, decreases the number of operators, and improves construction efficiency.

[0005] According to an embodiment of the present invention, a centralized control system for dewatering and sinking of large caissons is applied to a caisson foundation structure. The caisson foundation structure includes a caisson wall, and a plurality of first partition walls and a plurality of second partition walls disposed within the caisson wall to divide the space enclosed by the caisson wall into a plurality of well holes. The well holes adjacent to the caisson wall are outer well holes, and the well holes located within the space enclosed by the outer well holes are inner well holes. The first partition walls are arranged along a first direction, and the second partition walls are arranged along a second direction. The first direction and the second direction form a certain angle.

[0006] The control system includes:

[0007] Multiple slag discharge pipes are provided in the first partition wall and / or the second partition wall, and one end extends to the grit chamber;

[0008] Multiple water supply pipes are provided, which are located in the first partition wall and / or the second partition wall, and one end is connected to a water supply device;

[0009] Among them, at least one of the two adjacent peripheral wells is provided with a sand pumping device, and the sand pumping device is provided in the internal well. The sand pumping device includes a water supply pipe and a slag discharge pipe. Multiple water supply pipes are connected to a main water supply pipe and have a connected state and an isolated state. Multiple slag discharge pipes are connected to a main slag discharge pipe and have a connected state and an isolated state.

[0010] According to the centralized control system for dewatering and sinking of large caissons of this utility model, by installing a sand-dredging device in at least one of two adjacent outer wells and a sand-dredging device in the inner well, the overall number of sand-dredging devices can be reduced, construction costs can be lowered, and the construction requirements of both the outer perimeter and the interior of the caisson can be met. Furthermore, by connecting the water supply pipes and slag discharge pipes of the sand-dredging equipment in the well to the main water supply pipe and the main slag discharge pipe respectively, with multiple water supply pipes corresponding to one main water supply pipe and multiple slag discharge pipes corresponding to one main slag discharge pipe, and all having both connected and blocked states, the water supply to the well and the discharge of the mud-water mixture in the well can be controlled simply by controlling the states between the water supply pipes and the main water supply pipe, and between the slag discharge pipes and the main slag discharge pipe. This eliminates the need for a separate water supply device and sedimentation tank for each well, reducing pipeline setup, simplifying operator operations, reducing staffing requirements, and improving construction efficiency.

[0011] According to some embodiments of this utility model, the slag discharge pipe is equipped with a slag discharge valve to connect or block the slag discharge pipe and the slag discharge main pipe, and the slag discharge valve is a wirelessly controlled valve;

[0012] The water supply pipe is equipped with a water supply valve to connect or block the water supply pipe and the main water supply pipe. The water supply valve is a wirelessly controlled valve.

[0013] According to some embodiments of the present invention, a control unit is also included. The control unit is electrically connected to the slag discharge valve, the water supply valve, and the water supply device, respectively, so as to adjust the water supply of the water supply device according to the state of the slag discharge valve and the water supply valve.

[0014] According to some embodiments of the present invention, the first partition wall and the slag discharge main pipe are respectively configured in a one-to-one correspondence;

[0015] The number of the second partition walls is greater than the number of the main water supply pipes, and the main water supply pipes are provided on at least one side of the well hole along the first direction.

[0016] According to some embodiments of the present invention, the slag discharge main pipe is connected to a flushing pipe, which is used to connect to a clean water source to flush the slag discharge main pipe.

[0017] According to some embodiments of the present invention, the water supply device is connected to the sedimentation tank to recycle the water that has settled and separated from the mud and sand in the sedimentation tank.

[0018] According to some embodiments of this utility model, both the slag discharge main pipe and the water supply main pipe are telescopic pipes.

[0019] According to some embodiments of the present invention, the sand pumping device includes a mud and sand pump, the mud and sand pump includes an inlet and an outlet, and the outlet is connected to the slag discharge pipe;

[0020] It also includes a high-pressure water gun, which is connected to the water supply pipe.

[0021] According to some embodiments of the present invention, the sand pumping device further includes a load-bearing float, and the mud and sand pump is connected to the load-bearing float.

[0022] According to some embodiments of the present invention, a deep well dewatering system is also provided around the caisson foundation. The deep well dewatering system includes a pump control unit, a water level monitoring unit, and a caisson elevation monitoring unit. The pump control unit is used to control the pumping volume based on the data from the water level monitoring unit and the caisson elevation monitoring unit.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] Figure 1 This is a top view of the large caisson dewatering and sinking centralized control system and the caisson foundation structure according to an embodiment of the present utility model.

[0025] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0026] Figure 3 This is a schematic diagram of the cooperation between the main water supply pipe and the small water supply pipe in the control system according to an embodiment of the present utility model;

[0027] Figure 4 This is a schematic diagram of the cooperation between the slag discharge main pipe and the slag discharge small pipe in the control system according to an embodiment of the present utility model;

[0028] Figure 5 yes Figure 1 Enlarged view of point B in the middle;

[0029] Figure 6 This is a cross-sectional view of the sand-dredging device in the wellbore in the control system according to an embodiment of the present invention;

[0030] Figure 7 This is a top view of the sand-dredging device in the wellbore in the control system according to an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of wireless control of the control system according to an embodiment of the present utility model.

[0032] Figure label:

[0033] Control system 100

[0034] 10. Slag discharge main pipe, 11. Flushing pipe

[0035] Water supply main pipe 20, water supply device 21, water supply pipeline 211

[0036] Sand dredging device 30, water supply pipe 31, water supply valve 311, slag discharge pipe 32, slag discharge valve 321, mud and sand pump 33, liquid inlet 331, liquid outlet 332, load-bearing float 34.

[0037] The caisson foundation structure is 200, the caisson wall is 201, the first partition wall is 202, the second partition wall is 203, the outer caisson hole is 204, and the inner caisson hole is 205. Detailed Implementation

[0038] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0039] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0040] The following description, with reference to the accompanying drawings, describes a centralized control system 100 for caisson dewatering and sinking according to an embodiment of the present invention.

[0041] Reference Figure 1 and Figure 2According to the embodiment of the present utility model, the centralized control system 100 for caisson dewatering and sinking is applied to the caisson foundation structure 200. The caisson foundation structure 200 includes a caisson wall 201, and a plurality of first partition walls 202 and a plurality of second partition walls 203 disposed within the caisson wall 201 to divide the space enclosed by the caisson wall 201 into a plurality of well holes. The well holes adjacent to the caisson wall 201 are the outer well holes 204, and the well holes located in the space enclosed by the outer well holes 204 are the inner well holes 205. The first partition walls 202 are arranged along a first direction, and the second partition walls 203 are arranged along a second direction. The first direction and the second direction form a certain angle.

[0042] The number of first partition walls 202 and second partition walls 203 may be the same or different. (Refer to...) Figure 1 In this application, the number of first partition walls 202 and second partition walls 203 is the same. The angle between the first partition wall 202 and the second partition wall 203 can be an acute angle, a right angle, an obtuse angle, etc. (Refer to...) Figure 1 In this application, the angle between the first partition wall 202 and the second partition wall 203 is a right angle. For example, in this application, the number of the first partition wall 202 and the second partition wall 203 are both 6. Therefore, there are 20 well holes adjacent to the well wall 201 and 16 internal well holes 205.

[0043] Reference Figure 1 The control system 100 includes multiple slag discharge pipes 10 and multiple water supply pipes 20. The slag discharge pipes 10 are used to discharge mud-water mixture, and the water supply pipes 20 are used to supply water to the wellbore to flush mud and sand, so as to mix mud and sand with water to form mud-water mixture for easy discharge.

[0044] Reference Figure 1 The sludge discharge main pipe 10 is located in the first partition wall 202 and / or the second partition wall 203, and one end extends into the grit chamber to discharge the mud-water mixture into the grit chamber for sedimentation. Specifically, the sludge discharge main pipe 10 can be located in the first partition wall 202, the second partition wall 203, or both the first partition wall 202 and the second partition wall 203.

[0045] For example, the slag discharge pipe 10 is located in the first partition wall 202. The number of slag discharge pipes 10 and the number of first partition walls 202 can be the same, or the number of slag discharge pipes 10 can be less than the number of first partition walls 202.

[0046] Reference Figure 1 The main water supply pipe 20 is located in the first partition wall 202 and / or the second partition wall 203, and one end is connected to the water supply device 21 so that water can be supplied to the main water supply pipe 20 through the water supply device 21. Specifically, the main water supply pipe 20 can be located in the first partition wall 202, the second partition wall 203, or both the first partition wall 202 and the second partition wall 203.

[0047] For example, the water supply main pipe 20 is located in the second partition wall 203. The number of water supply main pipes 20 and the number of second partition walls 203 can be the same, or the number of water supply main pipes 20 is less than the number of second partition walls 203.

[0048] Reference Figure 1 At least one of two adjacent peripheral wellbores 204 is equipped with a sand-dredging device 30. This reduces the number of sand-dredging devices 30 required, lowers construction costs, and still meets the construction requirements of the perimeter. When a wellbore without a sand-dredging device 30 needs sand dredging, the sand-dredging device 30 from an adjacent wellbore can be transferred there for dredging. A sand-dredging device 30 is also provided in the internal wellbore 205, based on the construction requirements of the internal wellbore 205. This allocation of sand-dredging devices 30 satisfies construction requirements while reducing the investment in construction equipment and lowering construction costs.

[0049] Reference Figure 1 and Figure 2 The sand dredging device 30 includes water supply pipes 31 and slag discharge pipes 32. Multiple water supply pipes 31 are connected to a main water supply pipe 20, and have both connected and blocked states. Multiple slag discharge pipes 32 are connected to a main slag discharge pipe 10, and also have both connected and blocked states. In this way, by controlling the states between the water supply pipes 31 and the main water supply pipe 20, and between the slag discharge pipes 32 and the main slag discharge pipe 10, the water supply to the well and the discharge of the mud-water mixture in the well can be controlled. This reduces the number of main water supply pipes 20 and slag discharge pipes 10, and eliminates the need for each well to be individually connected to a water supply device 21 and a sedimentation tank. This reduces the number of pipelines, simplifies the operation for workers, reduces the number of personnel required, and improves construction efficiency.

[0050] Therefore, referring to Figure 1 and Figure 2 According to the centralized control system 100 for caisson dewatering and sinking of this utility model, by installing a sand-dredging device 30 in at least one of two adjacent peripheral well holes 204 and a sand-dredging device 30 in the internal well hole 205, the total number of sand-dredging devices 30 can be reduced, construction costs can be lowered, and the construction requirements of both the outer periphery and the interior of the caisson can be met. Furthermore, by connecting multiple water supply pipes 31 and multiple slag discharge pipes 32 of the sand-dredging equipment in the well hole to a water supply main pipe 20 and a slag discharge main pipe 10 respectively, and by controlling the states between the water supply pipes 31 and the water supply main pipe 20, and between the slag discharge pipes 32 and the slag discharge main pipe 10 respectively, the water supply to the well hole and the discharge of the mud-water mixture in the well hole can be controlled. It is not necessary to connect each well hole to a separate water supply device 21 and a sedimentation tank, reducing the number of pipelines, simplifying the operation of workers, reducing the number of personnel required, and improving construction efficiency.

[0051] In some embodiments of this utility model, reference is made to Figure 3 and Figure 4 The slag discharge pipe 32 is equipped with a slag discharge valve 321 to connect or block the slag discharge pipe 32 and the slag discharge main pipe 10. The slag discharge valve 321 is a wireless control valve. The water supply pipe 31 is equipped with a water supply valve 311 to connect or block the water supply pipe 31 and the water supply main pipe 20. The water supply valve 311 is a wireless control valve.

[0052] By setting up a slag discharge valve 321 and a water supply valve 311, it is easy to connect or block the slag discharge pipe 32 and the slag discharge main pipe 10, as well as connect or block the water supply pipe 31 and the water supply main pipe 20. Thus, as long as the slag discharge valve 321 of a designated well is closed, slag discharge operations will not be performed on that well. Simultaneously, slag from other wells on the slag discharge main pipe 10 will not enter that well, but it will not affect the slag discharge from other wells. Setting the slag discharge valve 321 and the water supply valve 311 as wireless control valves allows for remote operation by personnel.

[0053] Specifically, refer to Figure 3 and Figure 4 The slag discharge valve 321 can be located near the slag discharge main pipe 10 in the slag discharge small pipe 32, and the water supply valve 311 can be located near the water supply main pipe 20 in the water supply small pipe 31.

[0054] In some embodiments of this utility model, reference is made to Figure 8 The control system 100 also includes a control unit, which is electrically connected to the slag discharge valve 321, the water supply valve 311 and the water supply device 21 respectively, so as to adjust the water supply of the water supply device 21 according to the status of the slag discharge valve 321 and the water supply valve 311.

[0055] By electrically connecting the slag discharge valve 321, the water supply valve 311, and the water supply device 21 to the control unit, the control unit can adjust the water supply of the water supply device 21 according to the number and position of the slag discharge valve 321 and the water supply valve 311 to meet the water volume required for slag discharge.

[0056] Specifically, the operator operates the slag discharge valve 321 and the water supply valve 311 in a single well hole to open and close. The control unit obtains the pressure changes of the pressure gauge located in the main water supply pipe caused by the opening and closing of the water supply valve 311, and controls the water supply flow rate of the water supply device 21 and the amount of slag discharged in the sedimentation tank to achieve automatic control.

[0057] In some embodiments of this utility model, reference is made to Figure 1 The first partition wall 202 is set in a one-to-one correspondence with the slag discharge main pipe 10; the number of second partition walls 203 is greater than the number of water supply main pipes 20, and along the first direction, at least one side of the well hole is provided with a water supply main pipe 20.

[0058] It is understandable that the concentration of the mud-water mixture is greater than that of water; therefore, referring to... Figure 1 The first partition wall 202 is set one-to-one with the slag discharge main pipe 10 so that multiple slag discharge small pipes 32 are distributed in different slag discharge main pipes 10, reducing the discharge volume of a single slag discharge main pipe 10 and reducing the risk of blockage of the slag discharge main pipe 10.

[0059] In some embodiments, refer to Figure 1 Along the second direction, the number of slag discharge sub-pipes 32 connected to each main slag discharge pipe 10 first decreases and then increases, with the centrally located main slag discharge pipe 10 having the fewest slag discharge sub-pipes 32 connected to it. Specifically, in this application's scheme, refer to... Figure 1 Five main slag discharge pipes 10 are spaced apart along the second direction. The first and fifth main slag discharge pipes 10 are each connected to six smaller slag discharge pipes 32. The second and fourth main slag discharge pipes 10 are each connected to five smaller slag discharge pipes 32. The middle main slag discharge pipe 10 is connected to four smaller slag discharge pipes 32. The length of the main slag discharge pipes 10 along the first direction can be adjusted as needed. While ensuring the connection of the smaller slag discharge pipes 32, the length of the main slag discharge pipe 10 can be reduced. For example, the third main slag discharge pipe 10 has the shortest length.

[0060] In some embodiments of this utility model, reference is made to Figure 5 The slag discharge main pipe 10 is connected to a flushing pipe 11, which is used to connect to a clean water source to provide clean water to the slag discharge main pipe 10.

[0061] By connecting the flushing pipe 11 to the slag discharge main pipe 10, clean water can be supplied to the slag discharge main pipe 10 to dilute the mud-water mixture in the slag discharge main pipe 10 during the slag discharge process, so that the mud-water mixture can smoothly pass through the slag discharge main pipe 10 into the grit chamber. After the slag discharge is completed, it can also be used to clean the pipe of the slag discharge main pipe 10.

[0062] Specifically, the flushing pipe 11 can be connected to the slag discharge main pipe 10 located between the caisson foundation structure 200 and the sedimentation tank. Furthermore, the flushing pipe 11 can be connected to the tail end of the slag discharge main pipe 10.

[0063] In some embodiments of this utility model, the water supply device 21 is connected to the sedimentation tank to recycle the water that has settled and separated from the mud and sand in the sedimentation tank.

[0064] By connecting the water supply device 21 to the sedimentation tank, the clean water can be recycled after the mud-water mixture settles in the sedimentation tank.

[0065] Specifically, one or more water supply devices 21 can be installed. In this application, multiple water supply devices 21 are installed, and each water supply device 21 is connected to a main water supply pipe 20 via a water supply pipeline 211. Each water supply pipeline 211 is connected to one main water supply pipe 20, and the multiple water supply pipelines 211 are interconnected. One water supply device 21 can be connected to a grit chamber, and the rest can be connected to a clean water source, or one can be connected to a clean water source, and the others can be connected to a grit chamber, etc.

[0066] In some embodiments of this utility model, both the slag discharge main pipe 10 and the water supply main pipe 20 are telescopic pipes.

[0067] In this application, the slag discharge main pipe 10 and the water supply main pipe 20 are respectively located on the top of the first partition wall 202 and the second partition wall 203. As the well wall 201 sinks, the slag discharge main pipe 10 and the water supply main pipe 20 can adapt to the change in the distance between them and the connected equipment through their retractability.

[0068] Specifically, the slag discharge main pipe 10 and the water supply main pipe 20 are designed with retractable structures at the well wall position.

[0069] It should be noted that in this application, the main slag discharge pipe 10, the main water supply pipe 20, the small slag discharge pipe 32, the small water supply pipe 31, and other pipelines all have a certain pressure-bearing capacity and are not easily damaged by the pressure applied by the sand pumping device 30 and the water supply device 21, thus ensuring the smooth progress of slag discharge.

[0070] In some embodiments of this utility model, reference is made to Figure 6 and Figure 7 The sand pumping device 30 includes a mud pump 33, which includes an inlet 331 and an outlet 332. The outlet 332 is connected to the slag discharge pipe 32. It also includes a high-pressure water gun, which is connected to the water supply pipe 31.

[0071] Reference Figure 6 and Figure 7 The mud-water pump 33 pumps the mud-water mixture into the sedimentation tank through the inlet 331 and discharges it through the outlet 332. The mud-water mixture is then discharged into the sedimentation tank via the slag discharge pipe 32 and the slag discharge main pipe 10. When the mud-water pump 33 is working, the slag discharge valve 321 is opened so that the mud-water mixture can enter the slag discharge main pipe 10 through the slag discharge pipe 32.

[0072] By installing a high-pressure water gun, the water supplied by the water supply pipe 31 can be ejected at high pressure, facilitating the mixing of mud and sand with water to form a mud-water mixture. The high-pressure water gun is located inside the wellbore, and its position and direction can be changed to flush different areas within the wellbore.

[0073] In some embodiments of this utility model, reference is made to Figure 6 and Figure 7The sand dredging device 30 also includes a load-bearing pontoon 34, and a mud pump 33 is connected to the load-bearing pontoon 34.

[0074] Since a mud-water mixture is formed in the wellbore by flushing water, and the height of the mud-water mixture varies depending on the slag discharge efficiency, a load-bearing float 34 is set up and the mud-sand pump 33 is connected to the load-bearing float 34 so that the mud-sand pump 33 can always float on the mud-water mixture and change with the depth of the mud-water mixture.

[0075] Specifically, refer to Figure 6 and Figure 7 The load-bearing floating box 34 includes two box bodies connected by a connector. The mud and sand pump 33 is located at the connector, which improves the stability of the load.

[0076] Specifically, the selection of the sludge pump 33 can be matched according to the height of the caisson structure, the sinking depth, and the equipment head.

[0077] In some embodiments of this utility model, a deep well dewatering system is also provided around the caisson foundation. The deep well dewatering system includes a pump control unit, a water level monitoring unit, and a caisson elevation monitoring unit. The pump control unit is used to control the pumping volume based on the data from the water level monitoring unit and the caisson elevation monitoring unit.

[0078] The groundwater level outside the well is controlled by a deep well dewatering system, so that the groundwater level inside the well is higher than the groundwater level outside the well.

[0079] Specifically, the water level monitoring unit is used to monitor the groundwater level outside the well. Based on the depth to which the caisson sinks underground, the caisson elevation monitoring unit and the water level monitoring unit judge the monitoring data and send instructions to the water pump control unit to ensure that the depth of the groundwater outside the well meets the sinking requirements.

[0080] In this application, the deep well dewatering system lowers the groundwater level outside the well to 1-2 meters below the excavated bottom surface, based on the excavation face of the caisson, to prevent excessively high groundwater levels from causing sand boils or other hazards at the bottom of the caisson. Specifically, the groundwater level can be lowered to 1 meter, 1.3 meters, 1.7 meters, or 2 meters below the excavated bottom surface.

[0081] The deep well dewatering system is located outside the wellbore. The deep well dewatering system can be connected to a control unit.

[0082] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0083] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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 mechanical connection, an electrical connection, or a communication connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0084] 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 that the first feature is at a lower horizontal level than the second feature.

[0085] 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.

[0086] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A centralized control system for dewatering and sinking of large caissons, characterized in that, This invention is applied to a caisson foundation structure, which includes a caisson wall and a plurality of first partition walls and a plurality of second partition walls disposed within the caisson wall to divide the space enclosed by the caisson wall into a plurality of well holes. The well holes adjacent to the caisson wall are the outer well holes, and the well holes located within the space enclosed by the outer well holes are the inner well holes. The first partition walls are disposed along a first direction, and the second partition walls are disposed along a second direction. The first direction and the second direction form a certain angle. The control system includes: Multiple slag discharge pipes are provided in the first partition wall and / or the second partition wall, and one end extends to the grit chamber; Multiple water supply pipes are provided, which are located in the first partition wall and / or the second partition wall, and one end is connected to a water supply device; Among them, at least one of the two adjacent peripheral wells is provided with a sand pumping device, and the sand pumping device is provided in the internal well. The sand pumping device includes a water supply pipe and a slag discharge pipe. Multiple water supply pipes are connected to a main water supply pipe and have a connected state and an isolated state. Multiple slag discharge pipes are connected to a main slag discharge pipe and have a connected state and an isolated state.

2. The centralized control system for dewatering and sinking of large caissons according to claim 1, characterized in that, The slag discharge pipe is equipped with a slag discharge valve to connect or block the slag discharge pipe and the slag discharge main pipe. The slag discharge valve is a wirelessly controlled valve. The water supply pipe is equipped with a water supply valve to connect or block the water supply pipe and the main water supply pipe. The water supply valve is a wirelessly controlled valve.

3. The centralized control system for dewatering and sinking of large caissons according to claim 2, characterized in that, It also includes a control unit, which is electrically connected to the slag discharge valve, the water supply valve and the water supply device respectively, so as to adjust the water supply of the water supply device according to the status of the slag discharge valve and the water supply valve.

4. The centralized control system for dewatering and sinking of large caissons according to claim 1, characterized in that, The first partition wall is set up in a one-to-one correspondence with the main slag discharge pipe; The number of the second partition walls is greater than the number of the main water supply pipes, and the main water supply pipes are provided on at least one side of the well hole along the first direction.

5. The centralized control system for dewatering and sinking of large caissons according to claim 1, characterized in that, The slag discharge main pipe is connected to a flushing pipe, which is used to connect to a clean water source to provide clean water to the slag discharge main pipe.

6. The centralized control system for dewatering and sinking of large caissons according to claim 1, characterized in that, The water supply device is connected to the sedimentation tank to recycle the water that has settled and separated from the mud and sand in the sedimentation tank.

7. The centralized control system for dewatering and sinking of large caissons according to claim 1, characterized in that, Both the slag discharge main pipe and the water supply main pipe are expandable pipes.

8. The centralized control system for dewatering and sinking of large caissons according to claim 1, characterized in that, The sand pumping device includes a mud and sand pump, which includes an inlet and an outlet, with the outlet connected to the slag discharge pipe. It also includes a high-pressure water gun, which is connected to the water supply pipe.

9. The centralized control system for dewatering and sinking of large caissons according to claim 8, characterized in that, The sand dredging device also includes a load-bearing float, and the mud and sand pump is connected to the load-bearing float.

10. The centralized control system for dewatering and sinking of large caissons according to claim 1, characterized in that, It also includes a deep well dewatering system located around the caisson foundation. The deep well dewatering system includes a pump control unit, a water level monitoring unit, and a caisson elevation monitoring unit. The pump control unit is used to control the pumping volume based on the data from the water level monitoring unit and the caisson elevation monitoring unit.

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