Open caisson dewatering and drainage sinking control system

Abstract

The invention discloses an open caisson dewatering and drainage sinking control system which is applied to an open caisson foundation structure, the open caisson foundation structure comprises a caisson wall, a plurality of first partition walls and a plurality of second partition walls, the first partition walls and the second partition walls are arranged in the caisson wall so that the space defined by the caisson wall can be divided into a plurality of well holes, the first partition walls are arranged in the first direction, and the second partition walls are arranged in the second direction. The first direction and the second direction form a certain included angle; the control system comprises a plurality of deslagging main pipes arranged on the first partition wall and / or the second partition wall, and one end of each deslagging main pipe extends to the grit chamber; the water supply main pipes are arranged on the first partition walls and / or the second partition walls, and one ends of the water supply main pipes are connected with water supply devices; wherein at least one of two adjacent peripheral well holes is internally provided with a sand pumping device, the inner well hole is internally provided with a sand pumping device, the sand pumping device comprises water supply small pipes and slag discharge small pipes, the plurality of water supply small pipes are correspondingly connected with a water supply main pipe, the plurality of slag discharge small pipes are correspondingly connected with a slag discharge main pipe, and the water supply small pipes and the slag discharge small pipes respectively have a communicating state and a blocking state.

Description

Technical Field

[0001] The invention relates to the technical field of caisson construction, in particular to a caisson drainage and sinking control system. Background Art

[0002] Caisson foundations are widely used in large-scale bridge projects, urban water treatment, and underground space development due to their high stability and structural safety. Depending on the depth, geological conditions, and surrounding environment, ultra-large caisson foundations are typically sunk using either drainage or non-drainage methods. During drainage, high-pressure water jets are typically used to flush the soil into a slurry, which is then removed using a sewage pump.

[0003] In the existing technology, due to the large volume of the caisson and the large number of well holes, each well hole is separately equipped with a slag discharge pipe and a water supply pipe, and the water supply pipe and the slag discharge pipe are directly connected to the water supply system and the sedimentation area respectively, resulting in a large number of pipeline settings, high construction costs, and the need to be equipped with a large number of operators, cumbersome operations, and low construction efficiency. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a caisson drainage and sinking control system, which simplifies the piping arrangement, reduces construction costs, reduces the number of operators, and improves construction efficiency.

[0005] The caisson drainage and sinking control system according to an embodiment of the present invention is applied to a caisson foundation structure, the caisson foundation structure comprising a well wall, and a plurality of first partition walls and a plurality of second partition walls arranged within the well wall, so as to divide the space enclosed by the well wall into a plurality of well holes, the well holes adjacent to the well wall being peripheral well holes, and the well holes located within the space enclosed by the peripheral well holes being internal well holes, the first partition walls being arranged along a first direction, the second partition walls being arranged along a second direction, and the first direction and the second direction forming a certain angle;

[0006] The control system includes:

[0007] a plurality of slag discharge main pipes, each of which is provided on the first partition wall and / or the second partition wall and has one end extending to the grit chamber;

[0008] a plurality of water supply pipes, each of which is provided on the first partition wall and / or the second partition wall and has one end connected to a water supply device;

[0009] Among them, at least one of two adjacent ones of the peripheral well holes is provided with a sand pumping device, and the internal well hole is provided with the sand pumping device. The sand pumping device includes a water supply small pipe and a slag discharging small pipe. A plurality of the water supply small pipes are correspondingly connected to one water supply main pipe and have a communicating state and a blocking state. A plurality of the slag discharging small pipes are correspondingly connected to one slag discharging main pipe and have a communicating state and a blocking state.

[0010] According to the open caisson dewatering and sinking control system of the present invention, by providing a sand pumping device in at least one of two adjacent peripheral well holes and a sand pumping device in the internal well hole, the total number of sand pumping devices can be reduced, the construction cost can be lowered, and at the same time, the construction requirements of the outer periphery and the inside of the open caisson can be met. At the same time, by connecting the water supply small pipes and the slag discharging small pipes of the sand pumping equipment in the well holes to the water supply main pipe and the slag discharging main pipe respectively, a plurality of water supply small pipes are correspondingly connected to one water supply main pipe, a plurality of slag discharging small pipes are correspondingly connected to one slag discharging main pipe, and both have a communicating state and a blocking state. In this way, only by respectively controlling the states between the water supply small pipes and the water supply main pipe, the slag discharging small pipes and the slag discharging main pipe, the water supply to the well holes and the discharge of the muddy water mixture in the well holes can be controlled. It is not necessary to separately connect a water supply device and a grit chamber to each well hole, reducing the setting of pipelines, simplifying the operation of the staff, reducing the staffing of the staff, and improving the construction efficiency.

[0011] According to some embodiments of the present invention, the slag discharging small pipe is provided with a slag discharging valve to connect or block the slag discharging small pipe and the slag discharging main pipe, and the slag discharging valve is a wireless control valve;

[0012] The water supply small pipe is provided with a water supply valve to connect or block the water supply small pipe and the water supply main pipe, and the water supply valve is a wireless control valve.

[0013] According to some embodiments of the present invention, it further includes a control unit, and the control unit is electrically connected to the slag discharging valve, the water supply valve and the water supply device respectively to adjust the water supply amount of the water supply device according to the states of the slag discharging valve and the water supply valve.

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

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

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

[0017] According to some embodiments of the present invention, the water supply device is connected to the grit chamber to recycle the water separated from the sediment in the grit chamber.

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

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

[0020] It further includes a high-pressure water gun, and the high-pressure water gun is connected to the small water supply pipe.

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

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

[0023] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a top view of the caisson dewatering and sinking control system cooperating with the caisson foundation structure according to an embodiment of the present invention;

[0025] Figure 2 is Figure 1 an enlarged view of part A in

[0026] Figure 3 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 invention;

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

[0028] Figure 5 is Figure 1 an enlarged view of part B in

[0029] Figure 6 is a cross-sectional view of the sand pumping device located in the well hole in the control system according to an embodiment of the present invention;

[0030] Figure 7It is a top view of the sand pumping device located in the well hole in the control system according to an embodiment of the present invention;

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

[0032] Reference numerals:

[0033] Control system 100,

[0034] Main slag discharge pipe 10, flushing pipe 11,

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

[0036] Sand pumping device 30, small water supply pipe 31, water supply valve 311, small slag discharge pipe 32, slag discharge valve 321, sand and mud pump 33, liquid inlet 331, liquid outlet 332, load floating box 34,

[0037] Open caisson foundation structure 200, well wall 201, first partition wall 202, second partition wall 203, peripheral well hole 204, internal well hole 205. Detailed implementation manners

[0038] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the 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 by referring to the drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0039] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or letters in different examples. Such repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the applicability of other processes and / or the use of other materials.

[0040] The open caisson dewatering and sinking control system 100 according to an embodiment of the present invention will be described below with reference to the drawings.

[0041] Refer to Figure 1 and Figure 2, the well - sinking dewatering and sinking control system 100 according to an embodiment of the present invention is applied to a caisson foundation structure 200. The caisson foundation structure 200 includes a well wall 201, and a plurality of first partition walls 202 and a plurality of second partition walls 203 arranged inside the well wall 201 to divide the space surrounded by the well wall 201 into a plurality of well holes. The well holes adjacent to the well wall 201 are peripheral well holes 204, and the well holes located within the space surrounded by the peripheral well holes 204 are internal 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, and the first direction and the second direction form a certain angle.

[0042] Among them, the number of the first partition walls 202 and the second partition walls 203 may be the same or different. Refer to Figure 1 , in the solution of the present application, the number of the first partition walls 202 and the second partition walls 203 is the same. The included 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 the solution of the present application, the included angle between the first partition wall 202 and the second partition wall 203 is a right angle. Exemplarily, in the solution of the present application, the number of both the first partition walls 202 and the second partition walls 203 is 6. Therefore, there are 20 well holes adjacent to the well wall 201 and 16 internal well holes 205.

[0043] Refer to Figure 1 , the control system 100 includes a plurality of slag discharge main pipes 10 and a plurality of water supply main pipes 20. Among them, the slag discharge main pipes 10 are used to discharge the mud - water mixture, and the water supply main pipes 20 are used to supply water for flushing the mud and sand into the well holes to mix the mud and sand with water into a mud - water mixture for easy discharge.

[0044] Refer to Figure 1 , the slag discharge main pipes 10 are arranged on the first partition walls 202 and / or the second partition walls 203, and one end extends to the sand settling tank so as to discharge the mud - water mixture into the sand settling tank for sedimentation. Specifically, the slag discharge main pipes 10 can be arranged on the first partition walls 202, the second partition walls 203, or both the first partition walls 202 and the second partition walls 203;

[0045] Exemplarily, the slag discharge main pipes 10 are arranged on the first partition walls 202. The number of the slag discharge main pipes 10 and the number of the first partition walls 202 may be the same, or the number of the slag discharge main pipes 10 is less than the number of the first partition walls 202.

[0046] Refer to Figure 1 , the water supply main pipes 20 are arranged on the first partition walls 202 and / or the second partition walls 203, and one end is connected to a water supply device 21 so as to supply water to the water supply main pipes 20 through the water supply device 21. Specifically, the water supply main pipes 20 can be arranged on the first partition walls 202, the second partition walls 203, or both the first partition walls 202 and the second partition walls 203;

[0047] Exemplarily, the water supply main pipe 20 is provided on the second partition wall 203. The number of the water supply main pipes 20 may be the same as that of the second partition walls 203, or the number of the water supply main pipes 20 is less than that of the second partition walls 203.

[0048] Referring to Figure 1 , at least one of two adjacent peripheral well holes 204 is provided with a sand pumping device 30. In this way, the number of the sand pumping devices 30 can be reduced, the construction cost is lowered, and at the same time, the construction requirements of the periphery can be met. When sand pumping is required for the well hole without the sand pumping device 30, the sand pumping device 30 in the adjacent well hole can be transferred for sand pumping. The internal well hole 205 is provided with a sand pumping device 30, which is set according to the construction requirements of the internal well hole 205. The above-mentioned distribution setting of the sand pumping device 30 not only meets the construction requirements, but also reduces the investment in construction equipment and lowers the construction cost.

[0049] Referring to Figure 1 and Figure 2 , the sand pumping device 30 includes a water supply small pipe 31 and a slag discharge small pipe 32. A plurality of water supply small pipes 31 are correspondingly connected to one water supply main pipe 20 and have a communicating state and a blocking state. A plurality of slag discharge small pipes 32 are correspondingly connected to one slag discharge main pipe 10 and have a communicating state and a blocking state. In this way, by respectively controlling the states between the water supply small pipe 31 and the water supply main pipe 20, the slag discharge small pipe 32 and the slag discharge main pipe 10, the water supply to the well hole and the discharge of the muddy water mixture in the well hole can be controlled, the number of the water supply main pipe 20 and the slag discharge main pipe 10 is reduced, and it is not necessary to separately connect a water supply device 21 and a sand settling tank to each well hole, reducing the pipeline setting, simplifying the operation of the staff, reducing the staff allocation, and improving the construction efficiency.

[0050] Thus, referring to Figure 1 and Figure 2 , for the open caisson dewatering and sinking control system 100 according to the present invention, by providing a sand pumping device 30 in at least one of two adjacent peripheral well holes 204 and providing a sand pumping device 30 in the internal well hole 205, the total number of the sand pumping devices 30 can be reduced, the construction cost is lowered, and at the same time, the construction requirements of the outer periphery and the inside of the open caisson can be met. At the same time, by correspondingly connecting a plurality of water supply small pipes 31 and a plurality of slag discharge small pipes 32 of the sand pumping equipment in the well hole to one water supply main pipe 20 and one slag discharge main pipe 10 respectively, and both having a communicating state and a blocking state, in this way, by respectively controlling the states between the water supply small pipe 31 and the water supply main pipe 20, the slag discharge small pipe 32 and the slag discharge main pipe 10, the water supply to the well hole and the discharge of the muddy water mixture in the well hole can be controlled, it is not necessary to separately connect a water supply device 21 and a sand settling tank to each well hole, reducing the pipeline setting, simplifying the operation of the staff, reducing the staff allocation, and improving the construction efficiency.

[0051] In some embodiments of the present invention, referring to Figure 3 and Figure 4 , a slag discharge valve 321 is provided on the slag discharge small pipe 32 to connect or block the slag discharge small pipe 32 and the slag discharge main pipe 10, and the slag discharge valve 321 is a wireless control valve; a water supply valve 311 is provided on the water supply small pipe 31 to connect or block the water supply small pipe 31 and the water supply main pipe 20, and the water supply valve 311 is a wireless control valve.

[0052] By providing the slag discharge valve 321 and the water supply valve 311, it is convenient to connect or block the slag discharge small pipe 32 and the slag discharge main pipe 10, and to connect or block the water supply small pipe 31 and the water supply main pipe 20. In this way, as long as the slag discharge valve 321 of the specified well hole is closed, the slag discharge operation of this well hole will not be carried out. At the same time, the slag discharge of other well holes on the slag discharge main pipe 10 will not enter this well hole either, but it does not affect the slag discharge of other well holes. Setting the slag discharge valve 321 and the water supply valve 311 as wireless control valves facilitates the staff to remotely operate the valves.

[0053] Specifically, referring to Figure 3 and Figure 4 , the slag discharge valve 321 can be provided at a position where the slag discharge small pipe 32 is close to the slag discharge main pipe 10, and the water supply valve 311 can be provided at a position where the water supply small pipe 31 is close to the water supply main pipe 20.

[0054] In some embodiments of the present invention, referring to Figure 8 , the control system 100 further includes a control unit, and the control unit is electrically connected to the slag discharge valve 321, the water supply valve 311, and the water supply device 21 respectively to adjust the water supply amount of the water supply device 21 according to the states 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 amount of the water supply device 21, etc. according to the number and positions of the opened slag discharge valve 321 and water supply valve 311 to meet the water volume required for slag discharge.

[0056] Specifically, the staff operates the opening and closing of the slag discharge valve 321 and the water supply valve 311 in a single well hole, and the control unit controls the water supply flow rate of the water supply device 21 and the slag discharge amount in the grit chamber by obtaining the change of the pressure gauge provided on the water supply main pipe caused by the opening and closing of the water supply valve 311 to achieve automatic control.

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

[0058] It can be understood 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 arranged corresponding to the slag discharge main pipe 10 one by one, so that a plurality of slag discharge small pipes 32 are distributed in different slag discharge main pipes 10, reducing the discharge capacity 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, referring to Figure 1 , along the second direction, the number of slag discharge small pipes 32 connected to each slag discharge main pipe 10 first decreases and then increases, wherein the number of slag discharge small pipes 32 connected to the centralmost slag discharge main pipe 10 is the least. Specifically, in the solution of the present application, referring to Figure 1 , there are 5 slag discharge main pipes 10 arranged at intervals along the second direction. Among them, the first slag discharge main pipe 10 and the fifth slag discharge main pipe 10 are respectively connected to six slag discharge small pipes 32, the second slag discharge main pipe 10 and the fourth slag discharge main pipe 10 are respectively connected to five slag discharge small pipes 32, and the middlemost slag discharge main pipe 10 is connected to four slag discharge small pipes 32. Along the first direction, the length of the slag discharge main pipe 10 can be set as required. On the premise of satisfying the connection of the foregoing slag discharge small pipes 32, the length of the slag discharge main pipe 10 can be reduced. Exemplarily, the length of the third slag discharge main pipe 10 is the smallest.

[0060] In some embodiments of the present invention, referring to Figure 5 , the slag discharge main pipe 10 is connected with a flushing pipe 11, and the flushing pipe 11 is used to connect to a clear water source to supply clear water to the slag discharge main pipe 10.

[0061] By connecting the flushing pipe 11 to the slag discharge main pipe 10 and supplying clear water into the slag discharge main pipe 10, the mud-water mixture in the slag discharge main pipe 10 can be diluted during the slag discharge process, so that the mud-water mixture can smoothly pass through the slag discharge main pipe 10 and enter the sand settling tank. After the slag discharge is completed, it can also be used to clean the pipeline of the slag discharge main pipe 10.

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

[0063] In some embodiments of the present invention, the water supply device 21 is connected to the sand settling tank to recycle the water separated from the sediment in the sand settling tank.

[0064] By connecting the water supply device 21 to the sand settling tank, the clear water can be recycled after the mud-water mixture precipitates in the sand settling tank.

[0065] Specifically, one or more water supply devices 21 may be provided. In the solution of this application, multiple water supply devices 21 are provided. The water supply devices 21 are connected to the main water supply pipe 20 through water supply pipelines 211. Among them, each water supply pipeline 211 is connected to one main water supply pipe 20, and the multiple water supply pipelines 211 are communicated with each other. One of the water supply devices 21 may be connected to the grit chamber, and the rest may be connected to the clean water source, or one may be connected to the clean water source and the others may be connected to the grit chamber, etc.

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

[0067] In the solution of this application, the main slag discharge pipe 10 and the main water supply pipe 20 are respectively arranged at the tops of the first partition wall 202 and the second partition wall 203. As the well wall 201 sinks, the main slag discharge pipe 10 and the main water supply pipe 20 can adapt to the change in the distance between the devices connected thereto through telescoping.

[0068] Specifically, the parts of the main slag discharge pipe 10 and the main water supply pipe 20 at the well wall position are provided with a telescopic structure.

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

[0070] In some embodiments of the present invention, referring to Figure 6 and Figure 7 , the sand pumping device 30 includes a mud pump 33. The mud pump 33 includes a liquid inlet 331 and a liquid outlet 332. The liquid outlet 332 is connected to the small slag discharge pipe 32; it also includes a high-pressure water gun, and the high-pressure water gun is connected to the small water supply pipe 31.

[0071] Referring to Figure 6 and Figure 7 , the mud pump 33 pumps the mud-water mixture through the liquid inlet 331 and then discharges it through the liquid outlet 332. The mud-water mixture is discharged into the grit chamber via the small slag discharge pipe 32 and the main slag discharge pipe 10. Among them, when the mud pump 33 is working, the slag discharge valve 321 is opened so that the mud-water mixture can enter the main slag discharge pipe 10 from the small slag discharge pipe 32.

[0072] By setting the high-pressure water gun, the water provided by the small water supply pipe 31 can be ejected at high pressure, facilitating the mixing of sand and water to form a mud-water mixture. Among them, the high-pressure water gun is arranged in the well hole, and its position and direction can be changed so as to wash different positions in the well hole.

[0073] In some embodiments of the present invention, referring to Figure 6 and Figure 7, the sand pumping device 30 further includes a load-carrying floating box 34, and the sand pump 33 is connected to the load-carrying floating box 34.

[0074] Since the muddy water mixture is formed by flushing water in the well hole, and the height of the muddy water mixture varies due to different slag discharge efficiencies. Therefore, by setting the load-carrying floating box 34 and connecting the sand pump 33 to the load-carrying floating box 34, the sand pump 33 can always float on the muddy water mixture and change with the change of the depth of the muddy water mixture.

[0075] Specifically, referring to Figure 6 and Figure 7 , the load-carrying floating box 34 includes two box bodies, the two box bodies are connected by a connecting piece, and the sand pump 33 is arranged on the connecting piece, improving the stability of the load.

[0076] Specifically, the selection of the sand pump 33 can be matched according to the height of the caisson structure, the sinking depth, the equipment lift, etc.

[0077] In some embodiments of the present invention, it further includes a deep well point dewatering system arranged around the caisson foundation. The deep well point dewatering system includes a water pump control unit, a water level monitoring unit and a caisson elevation monitoring unit. The water pump control unit is used to control the water pumping volume according to the data of the water level monitoring unit and the caisson elevation monitoring unit.

[0078] By controlling the water level of the groundwater outside the well through the deep well point dewatering system, the groundwater level inside the well hole is made higher than the groundwater level outside the well hole.

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

[0080] In the solution of the present application, the deep well point dewatering system reduces the groundwater level outside the well hole to 1m - 2m below the excavation bottom surface of the caisson bottom according to the excavation surface of the caisson bottom, avoiding dangerous situations such as sand turning at the bottom of the well hole caused by too high groundwater level outside the well hole. Specifically, the groundwater level can be reduced to 1m, 1.3m, 1.7m, 2m, etc. below the excavation bottom surface.

[0081] The deep well point dewatering system is arranged outside the well hole. The deep well point dewatering system can be connected to the control unit.

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

[0083] In the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0084] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or indicates that the first feature has a lower horizontal height than the second feature.

[0085] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

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

Claims

1. A control system for lowering and draining a caisson during sinking, characterized in that, Applied to a caisson foundation structure, the caisson foundation structure includes a well wall, and a plurality of first partition walls and a plurality of second partition walls arranged inside the well wall to divide the space surrounded by the well wall into a plurality of well holes. The well holes adjacent to the well wall are peripheral well holes, and the well holes located within the space surrounded by the peripheral well holes are internal well holes. The first partition walls are arranged along a first direction, the second partition walls are arranged along a second direction, and the first direction and the second direction form a certain angle. The control system includes: A plurality of slag discharge main pipes, which are arranged on the first partition walls and / or the second partition walls, and one end extends to the sand settling tank; A plurality of water supply main pipes, which are arranged on the first partition walls and / or the second partition walls, and one end is connected to a water supply device; Wherein, at least one of the adjacent two peripheral well holes is provided with a sand pumping device, and the internal well holes are provided with the sand pumping device. The sand pumping device includes a water supply small pipe and a slag discharge small pipe. A plurality of the water supply small pipes are correspondingly connected to one water supply main pipe and have a connected state and a blocked state. A plurality of the slag discharge small pipes are correspondingly connected to one slag discharge main pipe and have a connected state and a blocked state; The slag discharge small pipe is provided with a slag discharge valve to connect or block the slag discharge small pipe and the slag discharge main pipe, and the slag discharge valve is a wireless control valve; The water supply small pipe is provided with a water supply valve to connect or block the water supply small pipe and the water supply main pipe, and the water supply valve is a wireless control valve; The first partition walls are arranged in one-to-one correspondence with the slag discharge main pipes; The number of the second partition walls is greater than the number of the water supply main pipes, and along the first direction, at least one side of the well holes is provided with the water supply main pipes.

2. The open caisson dewatering and sinking control system according to claim 1, wherein It further includes a control unit, which is electrically connected to the slag discharge valve, the water supply valve and the water supply device respectively to adjust the water supply volume of the water supply device according to the states of the slag discharge valve and the water supply valve.

3. The open caisson dewatering and sinking control system according to claim 1, wherein, The slag discharge main pipe is connected with a flushing pipe, and the flushing pipe is used to connect to a clear water source to supply clear water to the slag discharge main pipe.

4. The open caisson dewatering and sinking control system according to claim 1, characterized in that, The water supply device is connected to the sand settling tank to recycle the water separated from the sediment in the sand settling tank.

5. The open caisson dewatering and sinking control system according to claim 1, wherein Both the slag discharge main pipe and the water supply main pipe are telescopic pipes.

6. The open caisson dewatering and sinking control system according to claim 1, characterized in that The sand pumping device includes a sand and mud pump, the sand and mud pump includes a liquid inlet and a liquid outlet, and the liquid outlet is connected to the slag discharge small pipe; It further includes a high-pressure water gun, and the high-pressure water gun is connected to the water supply small pipe.

7. The open caisson dewatering and sinking control system according to claim 6, characterized in that, The sand pumping device further includes a load-carrying floating box, and the sand and mud pump is connected to the load-carrying floating box.

8. The open caisson dewatering and sinking control system according to claim 1, wherein, It further includes a deep well point dewatering system arranged around the caisson foundation. The deep well point dewatering system includes a water pump control unit, a water level monitoring unit and a caisson elevation monitoring unit. The water pump control unit is used to control the water pumping volume according to the data of the water level monitoring unit and the caisson elevation monitoring unit.

Images