Basement passive-active combined anti-floating anchor pile well and construction method

Abstract

The invention relates to a basement passive-active combined anti-floating anchor pile well and a construction method, the anchor pile well comprises a pipe pile inserted below a basement bottom plate, the top end of the pipe pile is located above the basement bottom plate, the pipe pile is hollow, the pipe pile comprises a solid wall pipe located on the upper portion and a well pipe located on the lower portion, and a plurality of holes are formed in the periphery of the well pipe; the water passing pipe is positioned in the solid-wall pipe; the water draining pipe is connected with the water passing pipe; the pressure valve and the water pressure sensor are located between the water passing pipe and the water draining pipe; the water filtering pipe is positioned in the well casing and is connected with the water draining pipe end to end; the filter material is filled between the well casing and the water filter pipe; the first reinforcing steel bars are connected with the tops of the pipe piles and the basement bottom plate. Compared with the prior art, a passive anti-floating pile and an active anti-floating well are combined into a whole, the anti-floating performance effect is good, meanwhile, the construction cost is reduced, and energy consumption is reduced.

Description

Technical Field

[0001] The invention relates to the field of anti-floating technology, and in particular to a basement passive-active combined anti-floating anchor pile well and a construction method. Background Art

[0002] In recent years, basement damage caused by abnormal changes in groundwater levels has occurred frequently, causing significant losses. Failure of basement anti-floating may cause the basement to float, the bottom plate to bulge, structural columns to be sheared, basement leaks, etc., seriously affecting the normal use of the building. Anti-floating solutions are generally divided into two categories: passive anti-floating and active anti-floating. Among them, passive anti-floating is to consume the hydrostatic pressure and dynamic water pressure of the water body through certain devices; active anti-floating is to start the water pump in time to discharge the water in the cavity after detecting that the water level exceeds the limit.

[0003] At present, the commonly used passive anti-floating methods mainly include pipe piles or anchor cables. This method completely relies on resisting the horizontal soil pressure and consuming the water pressure in the cavity through the friction resistance of the pile side. However, in soft soil areas, the friction resistance of the pile side is relatively small, and more pipe piles or anchor cables need to be set up. The number and cost of pipe piles or anti-pullout anchor cables are large, which makes it difficult for all owners or construction units to benefit. The current passive anti-floating mainly includes drainage wells and passive anti-floating tanks. (1) Drainage wells: When the foundation soil layer around the well is overloaded or the bearing capacity of the soft soil foundation is insufficient and cannot provide sufficient friction resistance, it is necessary to open the drainage well and pump out the water in the cavity until the water level drops to a safe area. However, the existence of drainage wells will waste a lot of electricity for a long time. Moreover, if the water discharged from the drainage well is not used and directly discharged, it will cause a lot of water resource waste and water pollution. If the water pumped out of the drainage well is reused for garden irrigation, domestic water, etc., it can save water resources and turn waste into treasure. However, a complete water treatment system is required, which increases the construction difficulty and cost. (2) Passive anti-floating tank. The principle is to inject low-density materials such as high-density styrene foam plastics into the anti-floating tank, and the anti-floating tank floats on the top plate of the basement. When the basement is deformed upward due to water pressure, the low-density material in the passive anti-floating tank flows due to the feed force from the water below, thereby offsetting part of the upward deformation of the basement top plate, reducing or even eliminating the bulge of the top plate. The disadvantage of this method is that the density of low-density materials is very light compared to water, and the effect of reducing density can only be achieved when the object is on the water surface. If it is not on the water surface, it will lose its effectiveness. Secondly, due to the certain toxicity of chemical materials, it may have an impact on the environment. Finally, it is necessary to add equipment to the top surface of the basement, which increases the difficulty and cost of construction.

[0004] Patent Publication No. CN117536273A discloses a basement anti-floating system and construction process, including a basement, the bottom of the basement is a basement floor, a filter layer is provided below the basement floor, a number of anti-floating water collection wells are provided around the inner periphery of the basement, the filter layer is connected to the anti-floating water collection well, a water pump is provided in the anti-floating water collection well, a drainage blind ditch is provided around the inner periphery of the basement, drainage blind ditches are provided vertically and horizontally below the basement floor, the drainage blind ditches provided around the inner periphery of the basement are connected to the drainage blind ditches below the basement floor, and the drainage blind ditches around the inner periphery of the basement are connected to the drainage blind ditches below the basement floor, and the drainage blind ditches around the inner periphery of the basement are connected to the anti-floating water collection well. However, the anti-floating system combines the drainage blind ditch with the anti-floating water collection well, and both the drainage blind ditch and the anti-floating water collection well are active anti-floating structures. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and to provide a basement passive-active combined anti-floating anchor pile well and construction method, which combines the passive anti-floating piles and the active anti-floating well into one, thereby reducing construction costs and energy consumption while improving the anti-floating performance.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] In one aspect, the present invention provides a basement passive-active combined anti-floating anchor pile well, comprising:

[0008] A pipe pile inserted under the basement floor with its top located above the basement floor, wherein the pipe pile is hollow inside and comprises a solid wall pipe located at the upper part and a well pipe located at the lower part and having a plurality of openings around it;

[0009] a water pipe located inside the solid wall pipe;

[0010] A drain pipe connected to the water pipe;

[0011] A pressure valve and a water pressure sensor located between the water passage pipe and the water discharge pipe;

[0012] A water filter pipe located inside the well pipe, connected end to end with the drain pipe;

[0013] Filter material filled between the well pipe and the water filter pipe;

[0014] And a first steel bar connecting the top of the pipe pile and the basement floor.

[0015] Furthermore, the pipe pile is a concrete pipe, a second steel bar is embedded in the solid wall pipe, the solid wall pipe serves as a passive anti-floating mechanism, and the well pipe serves as an active anti-floating mechanism;

[0016] The water filter pipe, water pipe and drain pipe are made of stainless steel.

[0017] Furthermore, the filter material is composed of gravel with a particle size of 10 to 50 mm to form a reverse osmosis layer.

[0018] Furthermore, the thickness of the pipe pile is 90 to 100 mm;

[0019] The height ratio of the solid wall pipe to the well pipe is 1 to 3:1, so that the number of pipe piles can be reduced in the actual application of the anchor pile well, and the effect of combining active anti-floating and passive anti-floating can be achieved, and the solid wall pipe itself can have a strong structural strength. The pressure valve located between the water filter pipe and the water pipe is only opened when the water level is high, so as to achieve active anti-floating;

[0020] The distance between the water filter pipe and the well pipe is 4 to 10 mm, i.e. the thickness of the filter material forming layer;

[0021] The distance between the water pipe and the solid wall pipe is 4 to 10 mm.

[0022] Furthermore, the inner diameter of the water pipe is 60-100 mm, and the inner diameter of the water filter pipe is 60-100 mm.

[0023] Furthermore, the solid wall pipe and the well pipe are an integrated structure;

[0024] The water filter pipe and the water passage pipe are fixed by welding or connected by a connecting plate.

[0025] Furthermore, the side wall of the well pipe is provided with a plurality of openings.

[0026] Furthermore, the highest point of the filter material is located at the junction of the water filter pipe and the water pipe, and a partition is arranged above the highest point, that is, no filter material is filled between the solid wall pipe and the water pipe.

[0027] Furthermore, a base layer is provided at the bottom of the pipe pile;

[0028] A reverse osmosis layer is arranged below the basement floor.

[0029] Furthermore, the drain pipe is connected to a water tank; and a limited drainage port is provided at the upper end of the side wall of the water tank.

[0030] Further, the pressure valve and the water pressure sensor are electrically connected to a controller;

[0031] The water pressure sensor detects the water pressure and transmits a signal to the controller. When the detected water pressure is greater than or equal to a preset value, the controller controls the pressure valve to open; when the detected water pressure is lower than the preset value, the controller controls the pressure valve to close.

[0032] Furthermore, the controller is PLC controlled.

[0033] Furthermore, the controller is connected to an alarm and a display, and when the water pressure detected by the water pressure sensor is greater than a warning value, the alarm sounds an alarm.

[0034] Furthermore, a water quality detector for detecting groundwater quality is provided between the solid wall pipe and the water pipe, and the detected water quality parameters include temperature, depth, PH, ORP, conductivity & salinity & TDS, turbidity, DO, etc.

[0035] Furthermore, one or more pipe piles are provided. When there are multiple pipe piles, the water pipes inside the multiple pipe piles are connected to the drain pipe at the same time.

[0036] In another aspect, the present invention further provides a construction method for a basement passive-active combined anti-floating anchor pile well, comprising the following steps:

[0037] S1, prefabricate the pipe pile, place the water filter pipe and the water pipe inside the pipe pile, and fill filter material between the well pipe and the water filter pipe;

[0038] S2, pressing the pipe pile under the basement floor, and making its top end be above the basement floor;

[0039] S3, connecting the pipe pile to the basement floor through the first steel bar;

[0040] S4, connecting the water pipe to the drain pipe, and connecting a pressure valve and a water pressure sensor between the two.

[0041] Compared with the prior art, the present invention has the following advantages:

[0042] (1) The present invention combines passive anti-floating piles and active anti-floating wells into one, which can reduce the number of anti-floating piles, effectively saving the project cost and the time of impact on the project. At the same time, it reduces the connection with the basement, reduces the degree of damage to the basement floor, and makes the construction not limited by the construction space.

[0043] (2) When the anchor pile well of the present invention is used as a passive anti-floating well, groundwater enters the water pipe from the surrounding strata through the well pipe, filter material, and water filter pipe. At this time, the pressure valve in the pipe pile is in a closed state; when the groundwater pressure is greater than the preset pressure threshold, the water pressure sensor transmits a signal to the pressure valve, causing the pressure valve to open, converting the anchor pile well into an active pressure relief well to reduce and release pressure. Since the anchor pile well can function as a conventional anti-floating pump and can also function as a pressure relief well in extreme situations, "passive-active combined anti-floating" is achieved.

[0044] (3) The anchor pile well of the present invention has a wide range of applications and can be applied to buildings where the underground structure has already floated, and can also be used as a preventive measure for the underground structure of a building to be built.

[0045] (4) The present invention can perform real-time monitoring, which is safe and reliable. The present invention realizes real-time monitoring of groundwater, provides reliable technical parameters for engineering and technical personnel, and ensures the safety of underground structures.

[0046] (5) The present invention collects groundwater flowing out of the drain pipe into a water tank, which can be used for water recycling. When the liquid level in the water tank reaches the limit drain port, the water in the water tank automatically flows out. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a structural schematic diagram of the anchor pile well shown in Example 1;

[0048] Figure 2 This is a schematic diagram of the internal structure of the anchor pile well shown in Example 1;

[0049] Figure 3 This is a schematic diagram of the internal structure of the anchor pile well shown in Example 2;

[0050] Figure 4 This is a schematic diagram of the internal structure of the anchor pile well shown in Example 3;

[0051] Figure 5 This is a schematic diagram of the control process of the water pressure sensor and the pressure valve shown in Example 3;

[0052] Figure 6 This is a schematic diagram of the internal structure of the anchor pile well shown in Example 4.

[0053] Description of the markings in the figure:

[0054] 1-basement floor, 11-reverse osmosis layer;

[0055] 2-pile, 21-solid wall pipe, 211-second steel bar, 22-well pipe, 221-opening, 23-base layer;

[0056] 3- Clear the water pipe;

[0057] 4-Water filter pipe;

[0058] 5- Filter material;

[0059] 6- Drain pipe;

[0060] 7-pressure valve;

[0061] 8-water pressure sensor, 81-controller, 82-alarm, 83-display, 84-water quality detector;

[0062] 9- first steel bar;

[0063] 10-water tank, 101-limited drain port. DETAILED DESCRIPTION

[0064] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments are implemented based on the technical solution of the present invention, and detailed implementation methods and specific operation processes are given, but the protection scope of the present invention is not limited to the following embodiments. In the following embodiments or embodiments, if there is no special description of the functional components or structures, it means that they are all conventional components or conventional structures used in the art to achieve the corresponding functions.

[0065] It should be noted that in the description of the present invention, the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and 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 operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0066] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] A basement passive-active combined anti-floating anchor pile well, comprising:

[0068] A pipe pile 2 is inserted under the basement floor 1 and has its top located above the basement floor 1. The pipe pile 2 is hollow inside and includes a solid wall pipe 21 at the top and a well pipe 22 at the bottom with a plurality of openings 221 around it.

[0069] A water pipe 3 located inside the solid wall pipe 21;

[0070] A drain pipe 6 connected to the water pipe 3;

[0071] A pressure valve 7 and a water pressure sensor 8 located between the water passage pipe 3 and the drain pipe 6;

[0072] The water filter pipe 4 located inside the well pipe 22 is connected end to end with the drain pipe 6;

[0073] A filter material 5 filled between the well pipe 3 and the water filter pipe 4;

[0074] And a first steel bar 9 connecting the top of the pipe pile 2 and the basement floor 1.

[0075] In some specific embodiments, the pipe pile 2 is a concrete pipe, and the solid wall pipe 21 is embedded with a second steel bar 211;

[0076] The water filter pipe 4, the water passage pipe 3 and the drain pipe 6 are made of stainless steel.

[0077] In some specific implementations, the filter material 5 is composed of gravel with a particle size of 10 to 50 mm to form a reverse osmosis layer.

[0078] In some specific embodiments, the thickness of the pipe pile 2 is 90 to 100 mm;

[0079] The height ratio of the solid wall pipe 21 to the well pipe 22 is 1 to 3:1, so that the number of pipe piles 2 can be reduced in the actual application of the anchor pile well, and the effect of combining active anti-floating and passive anti-floating can be achieved, and the solid wall pipe 21 itself can have a strong structural strength. The pressure valve located between the water filter pipe 4 and the water pipe 3 is only opened when the water level is high, so as to achieve active anti-floating;

[0080] The spacing between the water filter pipe 4 and the well pipe 22 is 4 to 10 mm, i.e. the thickness of the layer formed by the filter material 5;

[0081] The distance between the water pipe 3 and the solid wall pipe 21 is 4-10 mm.

[0082] In some specific implementations, the inner diameter of the water pipe 3 is 60-100 mm, and the inner diameter of the water filter pipe 4 is 60-100 mm.

[0083] In some specific embodiments, the solid wall pipe 21 and the well pipe 22 are an integrated structure;

[0084] The water filter pipe 4 and the water passage pipe 3 are fixed by welding or connected by a connecting plate.

[0085] In some specific embodiments, the side wall of the well pipe 22 is distributed with a plurality of openings 221 .

[0086] In some specific embodiments, the highest point of the filter material 5 is located at the junction of the water filter pipe 4 and the water pipe 3, and a partition is arranged above the highest point, that is, the filter material 5 is not filled between the solid wall pipe 21 and the water pipe 3.

[0087] In some specific embodiments, a base layer 23 is provided at the bottom of the pipe pile 2;

[0088] A reverse osmosis layer 11 is arranged below the basement floor 1 .

[0089] In some specific implementations, the drain pipe 6 is connected to a water tank 10 ; and a limited drain port 101 is provided at the upper end of the side wall of the water tank 10 .

[0090] In some specific implementations, the pressure valve 7 and the water pressure sensor 8 are electrically connected to a controller 81;

[0091] The water pressure sensor 8 detects the water pressure and transmits a signal to the controller 81. When the detected water pressure is greater than or equal to a preset value, the controller 81 controls the pressure valve 7 to open; when the detected water pressure is lower than the preset value, the controller 81 controls the pressure valve 7 to close.

[0092] In some specific implementations, the controller 81 is PLC controlled.

[0093] In some specific implementations, the controller 81 is connected to an alarm 82 and a display 83. When the water pressure detected by the water pressure sensor 8 is greater than a warning value, the alarm 82 sounds an alarm.

[0094] In some specific embodiments, a water quality detector 84 for detecting groundwater quality is provided between the solid wall pipe 21 and the water pipe 3, and the detected water quality parameters include temperature, depth, PH, ORP, conductivity & salinity & TDS, turbidity, DO, etc.

[0095] In some specific embodiments, one or more pipe piles 2 are provided. When multiple pipe piles 2 are provided, the water pipes 3 inside the multiple pipe piles 2 are simultaneously connected to the drain pipe 6 .

[0096] A construction method for a basement passive-active combined anti-floating anchor pile well comprises the following steps:

[0097] S1, prefabricate the pipe pile 2, place the water filter pipe 4 and the water pipe 3 inside the pipe pile 2, and fill the filter material 5 between the well pipe 22 and the water filter pipe 4;

[0098] S2, pressing the pipe pile 2 under the basement floor 1, and making its top end be located above the basement floor 1;

[0099] S3, connecting the pipe pile 2 to the basement floor 1 through the first steel bar 9;

[0100] S4, connecting the water pipe 3 to the drain pipe 6, and connecting the pressure valve 7 and the water pressure sensor 8 between the two.

[0101] Example 1

[0102] A passive-active combined anti-floating anchor pile well in a basement, such as Figure 1 and 2 As shown, including:

[0103] A pipe pile 2 is inserted under the basement floor 1 and has its top located above the basement floor 1. The pipe pile 2 is hollow inside and includes a solid wall pipe 21 at the top and a well pipe 22 at the bottom with a plurality of openings 221 around it.

[0104] A water pipe 3 located inside the solid wall pipe 21;

[0105] A drain pipe 6 connected to the water pipe 3;

[0106] A pressure valve 7 and a water pressure sensor 8 located between the water passage pipe 3 and the drain pipe 6;

[0107] The water filter pipe 4 located inside the well pipe 22 is connected end to end with the drain pipe 6;

[0108] A filter material 5 filled between the well pipe 3 and the water filter pipe 4;

[0109] And a first steel bar 9 connecting the top of the pipe pile 2 and the basement floor 1.

[0110] In this embodiment, the pipe pile 2 is a concrete pipe, and the solid wall pipe 21 is embedded with a second steel bar 211;

[0111] The water filter pipe 4, the water passage pipe 3 and the drain pipe 6 are made of stainless steel.

[0112] In this embodiment, the filter material 5 is composed of gravel with a particle size of 10 to 50 mm to form a reverse osmosis layer.

[0113] In this embodiment, the filter material 5 is composed of gravel with a particle size of 10 to 50 mm to form a reverse osmosis layer.

[0114] In this embodiment, the thickness of the pipe pile 2 is 100 mm;

[0115] The height ratio of the solid wall pipe 21 to the well pipe 22 is 2:1, so that the number of pipe piles 2 can be reduced in the actual application of the anchor pile well, and the effect of combining active anti-floating and passive anti-floating can be achieved, and the solid wall pipe 21 itself can have a strong structural strength. The pressure valve located between the water filter pipe 4 and the water pipe 3 is only opened when the water level is high, so as to achieve active anti-floating;

[0116] The spacing between the water filter pipe 4 and the well pipe 22 is 10 mm, i.e. the thickness of the layer formed by the filter material 5;

[0117] The distance between the water pipe 3 and the solid wall pipe 21 is 10 mm.

[0118] In this embodiment, the inner diameter of the water pipe 3 is 100 mm, and the inner diameter of the water filter pipe 4 is 100 mm.

[0119] In this embodiment, the solid wall pipe 21 and the well pipe 22 are an integrated structure;

[0120] The water filter pipe 4 and the water passage pipe 3 are fixed by welding.

[0121] In this embodiment, a plurality of openings 221 are disposed on the side wall of the well pipe 22 .

[0122] In this embodiment, the highest point of the filter material 5 is located at the junction of the water filter pipe 4 and the water pipe 3, and a partition is arranged above the highest point, that is, the filter material 5 is not filled between the solid wall pipe 21 and the water pipe 3.

[0123] In this embodiment, a base layer 23 is provided at the bottom of the pipe pile 2 ; and a reverse osmosis layer 11 is provided below the basement floor 1 .

[0124] In this embodiment, the pressure valve 7 and the water pressure sensor 8 are electrically connected to a controller 81; the water pressure sensor 8 detects the water pressure and transmits a signal to the controller 81. When the detected water pressure is greater than or equal to a preset value, the controller 81 controls the pressure valve 7 to open, and when the detected water pressure is lower than the preset value, the controller 81 controls the pressure valve 7 to close. The controller 81 is PLC controlled.

[0125] A construction method for a basement passive-active combined anti-floating anchor pile well comprises the following steps:

[0126] S1, prefabricate the pipe pile 2, place the water filter pipe 4 and the water pipe 3 inside the pipe pile 2, and fill the filter material 5 between the well pipe 22 and the water filter pipe 4;

[0127] S2, pressing the pipe pile 2 under the basement floor 1, and making its top end be located above the basement floor 1;

[0128] S3, connecting the pipe pile 2 to the basement floor 1 through the first steel bar 9;

[0129] S4, connecting the water pipe 3 to the drain pipe 6, and connecting the pressure valve 7 and the water pressure sensor 8 between the two.

[0130] Example 2

[0131] In this embodiment, on the basis of the embodiment 1, the drain pipe 6 is connected to the water tank 10; the upper end of the side wall of the water tank 10 is provided with a limited position drain port 101, such as Figure 3 shown.

[0132] Example 3

[0133] like Figure 4 and 5 As shown, in this embodiment, based on the embodiment 2, the controller 81 is connected to an alarm 82 and a display 83. When the water pressure detected by the water pressure sensor 8 is greater than the warning value, the alarm 82 sounds an alarm. A water quality detector 84 for detecting the quality of groundwater is arranged between the solid wall pipe 21 and the water pipe 3. The detected water quality parameters include temperature, depth, PH, ORP, conductivity & salinity & TDS, turbidity, DO, etc. Its model is ERUN-ASZ-OD500, purchased from Xi'an Yingrun Environmental Protection Technology Group Co., Ltd.

[0134] Example 4

[0135] Compared with Example 2, most of them are the same, except that the anti-floating anchor pile well is provided with a plurality of pipe piles 2 at the same time, and the positions of the plurality of pipe piles 2 are arranged according to the actual situation, wherein the water pipe 3 inside each pipe pile 1 is connected to the drain pipe 6, such as Figure 6 shown.

[0136] Although the present invention has been described in detail above by means of general description, specific implementation methods and tests, it is obvious to those skilled in the art that some modifications or improvements may be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all fall within the scope of protection claimed by the present invention.

Claims

1. A basement passive-active combined anti-floating anchor pile well, characterized in that: include: A pipe pile (2) inserted below the basement floor (1) and having its top end located above the basement floor (1), wherein the pipe pile (2) is hollow inside and comprises a solid wall pipe (21) located at the upper part and a well pipe (22) located at the lower part and having a plurality of openings (221) around the periphery; A water pipe (3) located inside the solid wall pipe (21); a drain pipe (6) connected to the water pipe (3); A pressure valve (7) and a water pressure sensor (8) located between the water passage pipe (3) and the drain pipe (6); A water filter pipe (4) located inside the well pipe (22), which is connected end to end with the drain pipe (6); A filter material (5) filled between the well pipe (3) and the water filter pipe (4); And a first steel bar (9) connecting the top of the pipe pile (2) and the basement floor (1).

2. A basement passive-active combined anti-floating anchor pile well according to claim 1, characterized in that: The pipe pile (2) is a concrete pipe, and a second steel bar (211) is embedded in the solid wall pipe (21); The water filter pipe (4), the water passage pipe (3) and the water discharge pipe (6) are made of stainless steel.

3. A basement passive-active combined anti-floating anchor pile well according to claim 1, characterized in that: The height ratio between the solid wall pipe (21) and the well pipe (22) is 1 to 3:

1.

4. A basement passive-active combined anti-floating anchor pile well according to claim 1, characterized in that: The solid wall pipe (21) and the well pipe (22) are an integrated structure; The water filter pipe (4) and the water passage pipe (3) are fixed by welding or connected via a connecting plate.

5. The passive-active combined anti-floating anchor pile well in a basement according to claim 1 is characterized in that: A base layer (23) is provided at the bottom of the pipe pile (2); A reverse osmosis layer (11) is provided below the basement floor (1).

6. The passive-active combined anti-floating anchor pile well in a basement according to claim 1 is characterized in that: The drain pipe (6) is connected to a water tank (10); and a limited liquid discharge port (101) is provided at the upper end of the side wall of the water tank (10).

7. The passive-active combined anti-floating anchor pile well in a basement according to claim 1 is characterized in that: The pressure valve (7) and the water pressure sensor (8) are electrically connected to a controller (81); The water pressure sensor (8) detects the water pressure and transmits a signal to the controller (81); when the detected water pressure is greater than or equal to a preset value, the controller (81) controls the pressure valve (7) to open; when the detected water pressure is lower than the preset value, the controller (81) controls the pressure valve (7) to close.

8. The passive-active combined anti-floating anchor pile well in a basement according to claim 7 is characterized in that: The controller (81) is connected to an alarm (82) and a display (83).

9. The passive-active combined anti-floating anchor pile well in a basement according to claim 1 is characterized in that: A water quality detector (84) for detecting the quality of underground water is provided between the solid wall pipe (21) and the water pipe (3).

10. A construction method for a basement passive-active combined anti-floating anchor pile well as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1, prefabricating the pipe pile (2), placing the water filter pipe (4) and the water pipe (3) inside the pipe pile (2), and filling filter material (5) between the well pipe (22) and the water filter pipe (4); S2, pressing the pipe pile (2) into the bottom of the basement floor (1) and making its top end be located above the basement floor (1); S3, connecting the pipe pile (2) and the basement floor (1) through the first steel bar (9); S4, connecting the water pipe (3) to the drain pipe (6), and connecting a pressure valve (7) and a water pressure sensor (8) therebetween.

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