Three-dimensional multi-dimensional decompression anti-floating cooperative system and dynamic control method thereof

Abstract

The invention provides a three-dimensional multi-dimensional pressure reduction anti-floating cooperative system and a dynamic control method thereof, and the system consists of a water blocking module, a counterweight module, a pressure relief module, an emergency module, and a control module. A foundation pit supporting structure, a foundation pit fat groove backfill material, a basement side wall drainage hole, a basement bottom plate drainage hole, a pressure observation device, a valve and the like are adopted to form a three-dimensional multi-dimensional pressure reduction anti-floating cooperative system, different measures are adopted for pressure relief under different working conditions, and meanwhile the collaboration among the measures is improved in an information transmission mode. An automatic device and a dynamic control method are formed; according to the method, the buoyancy borne by underground water is effectively reduced, and the actual water buoyancy borne by the basement is controlled to be within a set interval range in a multi-dimensional mode through the synergistic effect of multiple measures; the underground water pressure under the bottom plate is visualized, and the underground water level is monitored and controlled visually and effectively.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of anti-floating of underground engineering, and particularly relates to a three-dimensional multi-dimensional pressure-reducing anti-floating collaborative system and a dynamic control method thereof. BACKGROUND

[0002] With the continuous improvement of the urban economic level in China, the rapid development of infrastructure construction and real estate development, the urban land is increasingly tense, the basement is continuously deepened, and the requirement for the anti-floating capacity is higher and higher. The traditional anti-floating technology mainly adopts single measures such as counterweight method, uplift pile anchor structure and blind ditch drainage, and has inherent defects of insufficient collaboration of multiple measures. The counterweight method needs to strengthen the basement structure design and foundation bearing capacity requirement on the other hand; the uplift pile anchor structure completely adopts pile and anchor structure measures for anti-floating, and has poor economy, and since the construction quality control is difficult, the anti-floating anchor rod failure accidents often occur; the traditional blind ditch drainage scheme is easy to cause functional failure due to clogging and cannot be remedied. In order to solve the problems of poor economy of the anti-floating measures of the deep and large basement, great difficulty in construction quality control and insufficient collaboration of multiple measures, a three-dimensional multi-dimensional pressure-reducing anti-floating collaborative system and a dynamic control method thereof are provided. SUMMARY

[0003] The application aims to adopt a foundation pit supporting structure, a foundation pit fat groove backfill material, a basement side wall drain hole, a basement bottom plate drain hole, a pressure observation device, a valve and the like to form a three-dimensional multi-dimensional pressure-reducing anti-floating collaborative system, to take different measures for pressure relief under different working conditions, and to improve the collaboration between the measures through the information transmission mode, so as to form an automatic device and a dynamic control method.

[0004] In order to achieve the above object, the application adopts the following technical scheme: The application discloses a three-dimensional multi-dimensional pressure-reducing anti-floating cooperative system which is composed of a water-blocking module, a counterweight module, a pressure relief module, an emergency module and a control module. The water-blocking module comprises a supporting structure and a concrete drainage ditch on the top of a fertilizer groove. The supporting structure is a foundation pit enclosure structure arranged outside the basement and used for blocking underground water and surface water outside the pit. The counterweight module comprises a bottom plate overhanging structure of the basement and a backfill body. The bottom plate overhanging structure is connected to the bottom of the fertilizer groove through reinforced concrete pouring, and the backfill body is arranged in layers on the bottom plate overhanging structure. The backfill body comprises a backfill concrete layer below a water level and a backfill water-permeable material layer above the water level. The emergency module comprises a dewatering well arranged in the fertilizer groove and a linkage water pump. The dewatering well is arranged in the water-permeable material layer. The pressure relief module comprises a side wall self-overflow pipe arranged at the water level, a bottom plate three-way drain pipe and a side wall drain pipe. The control module comprises a pressure sensor, a valve controller and a buoyancy dynamic analysis unit. The pressure sensor is arranged on a vertical pipe of the bottom plate three-way drain pipe and used for detecting the water pressure of the bottom plate. The vertical pipe is provided with a vertical pressure relief pipe penetrating through the bottom plate. The valve controller is arranged on the side wall self-overflow pipe, the bottom plate three-way drain pipe and the side wall drain pipe. The buoyancy dynamic analysis unit is used for triggering a graded pressure relief action according to real-time pressure data and controlling the water pressure of the bottom plate through the cooperative operation of the water pump and the valve controller.

[0005] Preferably, the foundation pit enclosure structure adopts an underground continuous wall or a water stop curtain, the top of the fertilizer groove is provided with a cast-in-place concrete structure drainage ditch, the drainage ditch has a width greater than that of the fertilizer groove, and the drainage ditch bottom is backfilled with a 0.5-1m clay layer and tamped, so as to block the surface water outside the pit from entering the fertilizer groove.

[0006] Preferably, the water-permeable material layer in the backfill body and the side wall drain pipe form a hydraulic gradient in elevation, so that the underground water and the surface water which have entered the fertilizer groove area are self-flowed and discharged through the side wall self-overflow pipe. The side wall self-overflow pipe is connected to an indoor drainage pipe.

[0007] Preferably, the dewatering well is arranged on one side close to the supporting structure, the dewatering well is composed of a steel mesh wrapped with a wire mesh, a water pump is arranged in the dewatering well, the water pump is arranged at the water level, the bottom of the dewatering well is connected to the side wall drain pipe, the side wall drain pipe is connected to a collecting well in the basement, a second valve is arranged at the discharge end of the side wall drain pipe, the water pump of the dewatering well is connected to the top drainage ditch through upward drainage, and the dewatering well, the water pump and the side wall drain pipe jointly form a fertilizer groove dewatering device.

[0008] Preferably, the vertical pressure relief pipe is embedded at the bottom plate, and the horizontal pipe and the vertical pipe are connected by a tee joint, the vertical pipe extends to the anti-floating water level through the pressure sensor and is connected to the indoor drain pipe; the horizontal pipe is connected to the nearby basement sump well through the valve; the pressure sensor monitors the water pressure at the bottom plate in real time, and the monitored water pressure is used as the start-stop control condition of different pressure relief modules; the vertical pipe, the horizontal pipe and the pressure sensor form a bottom plate pressure relief tee device.

[0009] Preferably, when the vertical pipe pressure P is less than the first threshold value P1, the water pressure is released through the side wall drain hole and the vertical pressure relief pipe; when the vertical pipe pressure P is greater than the first threshold value P1, the side wall dewatering well water pump is started; when the vertical pipe pressure P is greater than the second threshold value P2, the first valve of the horizontal pipe and the second valve of the side wall drain pipe connected to the bottom of the dewatering well are started, at this time the groundwater enters the sump well through the horizontal pipe and the side wall drain pipe to achieve the purpose of pressure relief.

[0010] Also provided is a dynamic control method of a three-dimensional multi-dimensional pressure relief anti-floating cooperative system, specifically: S1. Real-time monitoring of the water pressure at the bottom plate by a pressure sensor; S2. When the water pressure reaches the first threshold value P1, the side wall dewatering well water pump is started; S3. When the water pressure continues to be greater than the second threshold value P2, the first valve of the horizontal pipe and the second valve of the side wall drain pipe connected to the bottom of the dewatering well are started; S4. When the water pressure is greater than the third threshold value P3, the dewatering well water pump is started and the valve opening is adjusted to stabilize the water pressure in the preset target interval P0±ΔP.

[0011] Wherein the foundation pit support adopts underground continuous wall or sets up water stop curtain to block the groundwater outside the pit from entering the trench. A cast-in-place concrete structure drainage ditch is arranged at the top of the trench, the width of the drainage ditch is equal to that of the trench, and the surface water outside the pit is blocked from entering the trench.

[0012] The bottom plate outside the trench area is floating, the floating length is the width of the trench, and the area above the bottom plate needs to be backfilled. The counterweight of the basement can be increased to improve the anti-floating capacity.

[0013] The area above the bottom plate and below the water level is backfilled with C20 concrete; the area above the water level is backfilled with materials with strong water permeability such as pebbles, gravel and coarse sand.

[0014] The water pump in the dewatering well is connected to the top drainage ditch, and the drainage ditch at the position of the dewatering well needs to be provided with a manhole.

[0015] The groundwater pumped out of the dewatering well is collected in the ground pool through the drainage ditch, which can be used for greening or fire-fighting water, achieving energy saving and environmental protection.

[0016] When the water pressure of the basement floor exceeds the design pressure P0, the underground water can be lifted to the indoor drain pipe due to its own pressure, reducing the pumping and effectively controlling the floor pressure to avoid over-drainage. When the pressure gauge exceeds the set value P1, the lateral wall outer dewatering well is opened, and the lateral wall underground water is quickly drained, reducing the basement buoyancy. When the pressure gauge exceeds the set value P2, the first valve of the horizontal pipe and the first valve of the dewatering well bottom drain pipe are started. When the pressure drops to the next set value after starting any measure, the corresponding measure is stopped.

[0017] The floor drain pipe can be arranged equidistantly in the range of the basement, or can be arranged non-equidistantly according to the situation of the basement in the site, and the arrangement is flexible.

[0018] The operation between the above measures can be realized through information transmission and other means, and real-time cooperation is realized.

[0019] After the completion of the basement, the initial use of the deformation monitoring point is arranged at the basement floor during the use stage, and the vertical deformation of the floor is monitored. By recording the rainfall, total pumping and draining amount, drain efficiency of each measure, drain amount of each tee pipe, pressure change condition and use frequency, floor displacement condition and the like for a certain period of time (more than one hydrological year), the predetermined control values P1 and P2 are adjusted, the floor pressure relief tee device start-stop distribution mode is refined, the control system is further optimized, the stability of the control system is improved, and the operation cost can be further reduced.

[0020] The beneficial effects of the present application are: (1) Three-dimensional water blocking, forming a double water-blocking barrier by the foundation pit supporting structure and the trench drainage ditch, and performing three-dimensional water blocking from the vertical and horizontal directions respectively; (2) Intelligent pressure relief, the water pressure monitored by the pressure sensor at the floor is controlled in stages, the lateral wall drain pipe, the trench pumping and dewatering device, and the floor pressure relief tee device are linked to realize staged pressure relief control, and three-level regulation and control of self-flow, forced pumping and emergency drainage are realized; (3) Dynamic control, through long-term data collection and analysis of the buoyancy dynamic control model based on the pressure sensor architecture, the control system is optimized, over-drainage and over-drainage are reduced, the anti-floating stability is ensured, and the operation and maintenance cost is reduced.

[0021] (4) The present application effectively reduces the buoyancy of underground water, and utilizes the synergistic effect of multiple measures to control the actual water buoyancy of the basement in the set interval range in multiple dimensions; the water pressure under the floor is visualized, and the underground water level is monitored and controlled intuitively and effectively.

[0022] (5) The various measures in the application are all common materials and mature processes, effectively reducing construction cost, having good economy, easy to control during construction, and high construction quality. The foundation pit supporting structure is used as part of the groundwater blocking measure, realizing the combination of permanent and temporary foundation pit supporting structures, and having good economic benefits and green environmental protection. BRIEF DESCRIPTION OF DRAWINGS Figure 1 Overall section arrangement drawing of the application; Figure 2 Drainage schematic diagram of the application; Figure 3 Side wall dewatering well and fertilizer trench backfill plane schematic diagram of the application; Figure 4 Side wall dewatering well and fertilizer trench backfill section schematic diagram of the application; Fig. 1, water blocking module; 1-1, supporting structure; 1-2, concrete drainage ditch; 2, counterweight module; 2-1, bottom plate overhanging structure; 2-2, backfill body; 2-2-1, concrete layer; 2-2-2, permeable material layer; 3, pressure relief module; 3-1, side wall self-overflow pipe; 3-2, bottom plate three-way drainage pipe; 3-2-1, vertical pipe; 3-2-2, vertical pressure relief pipe; 3-3, side wall drainage pipe; 4, emergency module; 4-1, dewatering well; 4-2, water pump; 5, control module; 5-1, pressure sensor; 5-2, valve controller; 5-3, buoyancy dynamic analysis unit; 6, indoor drainage pipe; 7, collector well; 8, second valve; 9, three-way joint; 10, horizontal pipe; 11, first valve. DETAILED DESCRIPTION

[0023] The application will be better understood by the following description of embodiments, but the specific embodiments given by the applicant should not be regarded as limiting the technical solutions of the application, and any change to the definition of components or technical features, or formal but not substantial change to the overall structure should be regarded as within the protection scope defined by the technical solutions of the application.

[0024] In the application, unless otherwise explicitly specified or limited, the terms “mounting”, “connection”, “fixing” and the like should be understood broadly. For example, it can be fixed connection, detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium, or internal communication of two elements, or only surface contact, or surface contact connection through an intermediate medium. The specific meanings of the above terms in the application can be understood according to the specific circumstances by those skilled in the art.

[0025] A three-dimensional multi-dimensional decompression and anti-buoyancy collaborative system comprises a water-blocking module 1, a counterweight module 2, a pressure relief module 3, an emergency module 4, and a control module 5. The water-blocking module 1 includes a support structure 1-1 and a concrete drainage ditch 1-2 at the top of the trough. The support structure 1-1 is a foundation pit retaining structure 1-1 located outside the basement, used to block groundwater and surface water outside the pit. The counterweight module 2 includes an outward-projecting basement floor slab structure 2-1 and backfill 2-2. The outward-projecting basement floor slab structure 2-1 and the foundation pit retaining structure 1-1 are connected to the bottom of the trough by reinforced concrete casting. The backfill 2-2 is layered on the outward-projecting basement floor slab structure 2-1, comprising a concrete layer 2-2-1 below the flood control level and a permeable material layer 2-2-2 above the flood control level. The emergency module 5 includes a dewatering well 4-1 installed inside the trough and a linked water pump 4-2. -1 is installed within the permeable material layer 2-2-2; the pressure relief module 3 includes a side wall overflow pipe 3-1 installed at the water level elevation, a bottom plate tee drain pipe 3-2, and a side wall drain pipe 3-3; the control module 5 includes a pressure sensor 5-1, a valve controller 5-2, and a buoyancy dynamic analysis unit 5-3, wherein the pressure sensor 5-1 is installed on the vertical pipe 3-2-1 of the bottom plate tee drain pipe 3-2 for detecting the bottom plate water pressure, and the vertical pipe 3-2-1 passes through the bottom plate and is equipped with a vertical pressure relief pipe 3-2-2; the side wall overflow pipe 3-1, the bottom plate tee drain pipe 3-2, and the side wall drain pipe 3-3 are all equipped with valve controllers 5-2, and the buoyancy dynamic analysis unit 5-3 is used to trigger graded pressure relief actions based on real-time pressure data, and to control the pressure relief of the bottom plate water pressure through the coordinated operation of the water pump 4-2 and the valve controller 5-2 by detecting water pressure data.

[0026] Preferably, the foundation pit retaining structure 1-1 adopts a diaphragm wall or a water-stop curtain, and a cast-in-place concrete drainage ditch 1-2 is set on the top of the fertilizer trench. The width of the drainage ditch 1-2 is greater than the width of the fertilizer trench. After backfilling the bottom of the drainage ditch 1-2 by 0.5~1m, a clay layer 1-2-3 is formed and compacted to prevent surface water from outside the pit from entering the fertilizer trench.

[0027] Preferably, the permeable material layer 2-2-2 in the backfill 2-2 forms a hydraulic gradient with the elevation of the side wall drainage pipe 3-3, so that the groundwater and surface water that have entered the fertilizer tank area can be discharged by gravity through the side wall overflow pipe 3-1, and the side wall overflow pipe 3-1 is connected to the indoor drainage pipe 6.

[0028] Preferably, the dewatering well 4-1 is located on one side near the support structure 1-1. The dewatering well 4-1 is made of steel mesh wrapped with wire mesh. A water pump 4-2 is placed inside the well and is located at the designed water level. The bottom of the dewatering well 4-1 is connected to the side wall drain pipe 3-3, which is connected to the water collection well 7 in the basement. A second valve 8 is installed at the discharge end of the side wall drain pipe 3-3. The water pump 4-2 of the dewatering well 4-1 is connected to the top drainage ditch 1-2 through drainage. The dewatering well 4-1, the water pump 4-2, and the side wall drain pipe 3-3 together form a dewatering device for pumping out dewatering water.

[0029] Preferably, a vertical pressure relief pipe 3-2-2 is pre-embedded at the base plate, and a horizontal pipe 10 and a vertical pipe 3-2-1 are connected through a tee connector 9. The vertical pipe 3-2-1 extends to the anti-buoyancy waterproof level after passing through a pressure sensor 5-1 and is connected to the indoor drainage pipe 6. The horizontal pipe 10 is connected to the nearby basement sump 7 through a first valve 11. The pressure sensor 5-1 monitors the water pressure at the base plate in real time and uses the monitored water pressure as the start and stop control condition for different pressure relief modules 3. The vertical pipe 3-2-1, the horizontal pipe 10, and the pressure sensor 5-1 together form a base plate pressure relief tee device.

[0030] Preferably, when the water pressure of the base plate is controlled by the coordinated operation of the water pump 4-2 and the valve controller 5-2 through the detection of water pressure data, when the vertical pipe pressure P < the first threshold P1, the pressure is released through the side wall drain hole and the vertical pressure relief pipe 3-2-2; when the vertical pipe pressure P > the first threshold P1, the water pump 4-2 of the side wall dewatering well 4-1 is turned on; when the vertical pipe pressure P > the second threshold P2, the first valve 11 of the horizontal pipe 10 and the second valve 8 of the side wall drain pipe 3-3 connected to the bottom of the dewatering well 4-1 are activated, and at this time the groundwater enters the collection well 7 through the horizontal pipe 10 and the side wall drain pipe 3-3 to achieve the purpose of pressure relief.

[0031] The specific example is based on a building on a plot of land in Guangzhou, which has 3 basement floors. The basement floor is buried at a depth of about 15m, and the distance between the towers is 60m. The foundation pit support scheme adopts the 1000mm@1200mm+prestressed anchor cable scheme. A water-stop curtain of mixing piles is set on the outside of the retaining piles, and the width of the trench is 1.5m.

[0032] The anti-buoyancy water level for the basement is set at 6m below ground, located at the basement floor slab on the first basement level. Sidewall drainage pipes are installed at 6.5m below ground level, using... 50mm pipes, spaced 25m apart. Dewatering wells are installed inside the trench, spaced 25m apart, and the water pump is located at an elevation of 6.5m underground.

[0033] The base plate is equipped with a drain hole, connected to a tee connector, and after passing through a pressure sensor, a vertical pipe extends to a depth of 6.5m underground. A horizontal pipe connects to a valve and is then connected to the nearest sump.

[0034] The base slab extends 1.5m outwards. Backfilling requirements for the trench: C20 concrete should be backfilled from 6.5m underground to the base slab, and coarse sand and gravel should be backfilled above 6.5m underground. A drainage ditch should be installed on top.

[0035] Dynamic control method: 1) Set the pressure sensor to convert the pressure it monitors into the bottom pressure of the base plate, and determine the initial control value: When the pressure is low, no device needs to be turned on, and the groundwater is discharged through the side wall drain pipe and the vertical pipe of the bottom plate pressure relief tee device; when the pressure exceeds 87 kPa, start the water pump of the sump dewatering well to quickly drain the groundwater in the side wall and reduce the buoyancy of the basement; when the pressure gauge exceeds the set value of 89 kPa, start the horizontal pipe valve of the bottom plate pressure relief tee device and the bottom drainage pipe valve of the sump dewatering well.

[0036] Through long-term data recording, control values ​​can be gradually optimized, the start-stop distribution mode of the bottom plate pressure relief tee device can be refined, the control system can be further optimized, over-discharge and over-leakage can be reduced, anti-buoyancy stability can be ensured, and operation and maintenance costs can be reduced.

[0037] The bottom plate of the fertilizer tank extends outward, with the extension length being the width of the fertilizer tank. The extended bottom plate is connected to the foundation pit support structure, turning the foundation pit support structure, which was originally for temporary use, into a permanent anti-buoyancy structure, thus achieving a combination of temporary and permanent functions.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, equivalent changes, or alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A three-dimensional multi-dimensional decompression and anti-buoyancy collaborative system, comprising a water-blocking module (1), a counterweight module (2), a pressure relief module (3), an emergency module (4), and a control module (5), characterized in that: The water-blocking module includes a support structure (1-1) and a concrete drainage ditch (1-2) on top of the trench. The support structure (1-1) is a foundation pit retaining structure located outside the basement, used to block groundwater and surface water outside the pit. The counterweight module includes an outward-projecting basement slab structure (2-1) and backfill (2-2). The outward-projecting basement slab structure (2-1) and the foundation pit retaining structure (1-1) are connected to the bottom of the trench by reinforced concrete pouring. Backfill (2-2) is layered on the outward-projecting basement slab structure (2-1). The backfill (2-2) includes a concrete layer (2-2-1) below the waterproof level and a permeable material layer (2-2-2) above the waterproof level. The emergency module includes a dewatering well (4-1) and a linked water pump (4-2) installed inside the trench. The dewatering well (4-1) is located inside the permeable material layer (2-2-2). The pressure relief module includes a waterproofing well. The control module includes a sidewall overflow pipe (3-1), a bottom plate tee drain pipe (3-2), and a sidewall drain pipe (3-3) installed at the elevation. The control module includes a pressure sensor (5-1), a valve controller (5-2), and a buoyancy dynamic analysis unit (5-3). The pressure sensor (5-1) is installed on the vertical pipe (3-2-1) of the bottom plate tee drain pipe (3-2) to detect the water pressure of the bottom plate. The vertical pipe (3-2-1) passes through the bottom plate and is equipped with a vertical pressure relief pipe (3-2-2). The sidewall overflow pipe (3-1), the bottom plate tee drain pipe (3-2), and the sidewall drain pipe (3-3) are all equipped with valve controllers (5-2). The buoyancy dynamic analysis unit (5-3) is used to trigger graded pressure relief actions based on real-time pressure data. By detecting water pressure data, the coordinated operation of the water pump (4-2) and the valve controller (5-2) is used to control the water pressure of the bottom plate.

2. The three-dimensional multi-dimensional decompression and anti-buoyancy synergistic system according to claim 1, characterized in that: The foundation pit retaining structure adopts underground continuous wall or water-stop curtain. The top of the fertilizer tank is equipped with a cast-in-place concrete drainage ditch (1-2). The width of the drainage ditch (1-2) is greater than the width of the fertilizer tank. The bottom of the drainage ditch (1-2) is backfilled with a clay layer of 0.5~1m and compacted to prevent surface water from outside the pit from entering the fertilizer tank.

3. The three-dimensional multi-dimensional decompression and anti-buoyancy synergistic system according to claim 1, characterized in that: The permeable material layer (2-2-2) in the backfill (2-2) forms a hydraulic gradient with the elevation of the side wall drainage pipe (3-3), so that the groundwater and surface water that have entered the fertilizer tank area can be discharged by gravity through the side wall overflow pipe (3-1), and the side wall overflow pipe (3-1) is connected to the indoor drainage pipe (6).

4. The three-dimensional multi-dimensional decompression and anti-buoyancy synergistic system according to claim 3, characterized in that: The dewatering well (4-1) is located on one side near the support structure (1-1). The dewatering well (4-1) is made of steel mesh wrapped with wire mesh. A water pump (4-2) is placed inside the well. The water pump (4-2) is located at the designed water level. The bottom of the dewatering well (4-1) is connected to the side wall drain pipe (3-3). The side wall drain pipe (3-3) is connected to the water collection well (7) in the basement. A second valve (8) is installed at the discharge end of the side wall drain pipe (3-3). The water pump (4-2) of the dewatering well (4-1) is connected to the top drainage ditch (1-2) through drainage. The dewatering well (4-1), the water pump (4-2), and the side wall drain pipe (3-3) together form a dewatering device for pumping and draining water.

5. The three-dimensional multi-dimensional decompression and anti-buoyancy synergistic system according to claim 4, characterized in that: A vertical pressure relief pipe (3-2-2) is pre-embedded at the base plate, and a horizontal pipe (10) and a vertical pipe (3-2-1) are connected through a tee connector (9). The vertical pipe (3-2-1) extends to the anti-buoyancy waterproof level after passing through a pressure sensor (5-1) and is connected to the indoor drainage pipe (6). The horizontal pipe (10) is connected to the nearby basement sump (7) through the first valve (11). The pressure sensor (5-1) monitors the water pressure at the base plate in real time and uses the monitored water pressure as the start and stop control condition for different pressure relief modules. The vertical pipe (3-2-1), the horizontal pipe (10), and the pressure sensor (5-1) together form a base plate pressure relief tee device.

6. The three-dimensional multi-dimensional decompression and anti-buoyancy synergistic system according to claim 5, characterized in that: When the water pressure of the bottom plate is controlled by the coordinated operation of the water pump (4-2) and valve controller (5-2) through the detection of water pressure data, when the vertical pipe pressure P < the first threshold P1, the pressure is released through the side wall drain hole and the pressure relief hole (3-2-2) of the vertical pipe (3-2-1); when the vertical pipe pressure P > the first threshold P1, the water pump (4-2) of the side wall dewatering well (4-1) is turned on; when the vertical pipe pressure P > the second threshold P2, the first valve (11) of the horizontal pipe (10) and the second valve (8) of the side wall drain pipe (3-3) connected to the bottom of the dewatering well (4-1) are started. At this time, the groundwater enters the collection well (7) through the horizontal pipe (10) and the side wall drain pipe (3-3) to achieve the purpose of pressure relief.

7. A dynamic control method for a three-dimensional multi-dimensional decompression and anti-buoyancy cooperative system according to any one of claims 1-6, characterized in that: S1. Monitor the water pressure on the bottom plate in real time using a pressure sensor (5-1); S2. When the water pressure reaches the first threshold P1, turn on the side wall dewatering well (4-1) water pump (4-2). S3. When the water pressure continues to be greater than the second threshold P2, start the first valve (11) of the horizontal pipe (10) and the second valve (8) of the side wall drain pipe (3-3) connected to the bottom of the dewatering well (4-1). S4. When the water pressure is greater than the third threshold P3, start the dewatering well (4-1) and water pump (4-2) and adjust the valve opening to stabilize the water pressure in the preset target range P0±ΔP.

8. The dynamic control method according to claim 7, characterized in that: After the basement is completed, during the initial use phase, deformation monitoring points are set up at the basement floor to monitor the vertical deformation of the floor. By recording for a certain period of time, including more than one hydrological year of rainfall, total drainage volume, drainage efficiency of various measures, drainage volume of each tee pipe (3-2), pressure changes and usage frequency, and floor displacement, the predetermined control values ​​P1 and P2 are adjusted to dynamically adjust the groundwater pressure of the building floor.

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