Drainage and drainage integrated structure of barrel well and construction method of drainage and drainage integrated structure

Abstract

The barrel-well dewatering and drainage integrated structure comprises a well barrel, a support used for supporting and fixing the position of the well barrel, a filter screen, a water pumping pipe and a water pump, the filter screen wraps the outer wall face or the inner wall face of the well barrel, one end of the water pumping pipe is connected with a water outlet of the water pump, and the other end of the water pumping pipe extends out of the well barrel; a water through hole is formed in the wall face of the well barrel. The dewatering and drainage integrated structure is ingenious, the problems that a traditional tube well foundation pit dewatering and drainage process is complex and construction is difficult can be solved, meanwhile, the foundation pit dewatering and drainage efficiency can be improved, the safety and stability of construction are guaranteed, then the use experience of constructors is enhanced, and popularization and application of the barrel well dewatering and drainage integrated structure in the market are facilitated. According to the barrel well dewatering and drainage integrated structure and the construction method thereof, by applying the barrel well dewatering and drainage integrated structure, the advantages that the drainage efficiency of foundation pit dewatering can be improved, and the safety and stability of construction are guaranteed are also achieved.

Description

Technical Field

[0001] The invention relates to the technical field of dewatering of foundation pit engineering, and in particular to a bucket well dewatering and drainage integrated structure and a construction method thereof. Background Art

[0002] With the development of the construction industry, the utilization of land resources, the increasing number of high-rise buildings, and the increasing number of deep foundation pit projects, the dewatering and drainage of foundation pit projects has always been the focus of affecting the safety of underground engineering foundation pits. At present, the main dewatering methods for domestic foundation pits are single-mode dewatering such as pipe well drainage dewatering and local light well point dewatering. During the excavation of foundation pits, safety problems such as foundation pit landslides, collapses, and uneven geological settlements caused by dewatering often occur. Therefore, how to effectively prevent the impact of groundwater on the safety of foundation pit projects is the top priority of foundation pit construction control.

[0003] Traditional precipitation methods mainly use precipitation pipe wells as the main process. The precipitation pipe well is an engineering facility used to lower the groundwater level, usually used in underground construction or deep foundation pit projects. Its main purpose is to reduce the water pressure around the foundation pit or construction area by extracting groundwater, thereby preventing the rise of groundwater from causing adverse effects on construction, such as foundation pit collapse, structural instability or water damage. The above construction process usually starts foundation construction when the groundwater level drops to the construction design water level. This method is not flexible enough when dealing with individual groundwater construction. It is mostly used to arrange a ring network around the building for precipitation. In addition, the construction process is complicated, the drainage and precipitation efficiency is low, and the construction cost is high. These problems undoubtedly increase the labor intensity of construction personnel, affect the operating experience, and are not conducive to the promotion and application of the above method in the market. Summary of the invention

[0004] In order to overcome the defects in the above-mentioned prior art, the first invention purpose of the present invention is to provide a bucket well drainage integrated structure. The drainage integrated structure is ingenious and can not only solve the problems of complicated drainage procedures and difficult construction of traditional pipe well foundation pit drainage, but also improve the drainage efficiency of foundation pit dewatering, ensure the safety and stability of construction, and thus enhance the user experience of construction personnel, which is conducive to the promotion and application of the above-mentioned bucket well drainage integrated structure in the field of foundation pit engineering dewatering and drainage technology. A bucket well drainage integrated structure and its construction method, by applying the above-mentioned bucket well drainage integrated structure, also have the advantages of being able to improve the drainage efficiency of foundation pit dewatering and ensure the safety and stability of construction.

[0005] The above-mentioned barrel well drainage integrated structure and the above-mentioned construction method of the barrel well drainage integrated structure are technically related to each other and belong to the same inventive concept.

[0006] In order to achieve the above-mentioned first invention purpose, the present invention adopts the following technical scheme: a bucket well drainage integrated structure, including a bucket, a bracket for supporting and fixing the position of the bucket, a filter, a water pump and a water pump, the filter is covered on the outer wall or inner wall of the bucket, one end of the water pump is connected to the water outlet of the water pump, and the other end of the water pump extends to the outside of the bucket; a water hole is formed on the wall of the bucket.

[0007] As a preferred embodiment of the present invention, the well barrel includes an upper part, a middle part and a lower part of the well barrel, and the upper part, the middle part and the lower part of the well barrel are integrally formed; the upper part and the lower part of the well barrel are both solid structures, and the water hole is formed in the middle part of the well barrel.

[0008] As a preferred solution of the present invention, there are multiple water holes, and two adjacent water holes are arranged at an equal distance.

[0009] As a preferred solution of the present invention, the water pumping pipe includes two parts, namely a rubber steel wire hose and a PE pipe. The rubber steel wire hose is connected to the water pump, one end of the PE pipe is connected to the rubber steel wire hose, and the other end of the PE pipe is introduced into the upper part of the foundation pit to the third-level sedimentation tank, and finally the water in the well barrel is discharged.

[0010] As a preferred solution of the present invention, a reserved position for placing the rubber steel wire hose is formed at the opening of the well barrel.

[0011] As a preferred solution of the present invention, the well barrel is welded from steel plates into a barrel shape.

[0012] As a preferred solution of the present invention, the water pump is a submersible pump.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the integrated bucket-well drainage structure of the present invention is simple and ingenious, and easy to manufacture. By arranging a bucket, a bracket, a filter net, a pumping pipe and a suction pump, the bracket is used to support and fix the bucket, thereby ensuring the stability of the bucket during installation and use, and then through the filter net and the water holes opened on the wall of the bucket, the water in the sump can enter the bucket, and the water in the foundation pit can be filtered while collecting the water, and then the accumulated water can be extracted through the suction pump and the pumping pipe, which can effectively improve the drainage efficiency of the foundation pit dewatering, ensure the safety and stability of the construction, and further enhance the user experience of the construction personnel, which is conducive to the promotion and application of the above-mentioned integrated bucket-well drainage structure in the field of dewatering and drainage technology for foundation pit projects.

[0014] In order to achieve the above second invention object, the present invention adopts the following technical scheme: a construction method of a bucket well drainage integrated structure, comprising the following steps: S1. Construction preparation, pre-fabricate the well barrel; S2. Dig a sump for the well bucket and pump water out of the sump; S3. Pre-buried well bucket, quickly hoisted the well bucket into the sump using hoisting tools; S4, place the water pump; S5, after installation is completed, conduct a water pumping test and observe the water level changes in the well barrel; S6. When the water level in the well bucket reaches the bottom of the sump, fill the filter material at the bottom of the sump and around the well bucket; S7. On-site debugging.

[0015] As a preferred solution of the present invention, before the well barrel is installed, the bottom elevation of the well barrel is controlled, and after the installation is completed, the top elevation of the well barrel is remeasured.

[0016] As a preferred embodiment of the present invention, in S6, the filter material is gravel with a particle size of about 3 mm and no impurities.

[0017] Compared with the prior art, the beneficial effects of the present invention are: a construction method of a bucket well drainage integrated structure, which uses the above-mentioned bucket well drainage integrated structure and also has the advantages of being able to improve the drainage efficiency of foundation pit dewatering and ensure the safety and stability of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a bucket well in a bucket well drainage integrated structure in an embodiment; Figure 2 This is a schematic diagram of the structure of a bucket well in a bucket well drainage integrated structure in an embodiment; Figure 3 It is a structural schematic diagram of a bucket well drainage integrated structure in an embodiment.

[0019] Figure numerals: 1, well barrel; 1-1, upper part of well barrel; 1-2, middle part of well barrel; 1-3, lower part of well barrel; 1-4, water hole; 1-5, reserved position; 2, bracket; 2-1, supporting leg; 2-2, reinforcing cross bar; 3, water pump; 4, water pump. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They 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 direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0022] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] like Figures 1 to 3 As shown, a bucket well drainage integrated structure is mainly composed of a well bucket 1, a bracket 2 for supporting and fixing the well bucket 1, a filter screen, a water pump 3 and a water pump. In order to ensure the stability of the well bucket 1 during installation and use, the bracket 2 is composed of three legs 2-1. The legs 2-1 are fixed on the wall of the well bucket 1 by welding. The three legs 2-1 are distributed in a triangular shape, that is, a triangular bracket. In order to further enhance the structural strength of the bracket 2, a reinforcing cross bar 2-2 is added between two adjacent legs 2-1. Similarly, the three reinforcing cross bars 2-2 are also arranged in a triangular shape, which further ensures the structural strength of the well bucket 1 while ensuring its stability during use. The bottom of the leg 2-1 is located outside the bottom of the well bucket 1, so that the leg 2-1 can be inserted into the bottom construction area, further ensuring the stability of the well bucket 1 during use.

[0024] In the present invention, a filter net is coated on the outer wall or inner wall of the well barrel 1 to filter the accumulated water in the sump, reduce the probability of impurities entering the well barrel 1, and thus reduce the probability of blockage of the pumping pipe and the water pump, thereby effectively improving the drainage efficiency of the foundation pit dewatering and ensuring the safety and stability of the construction. Specifically, one end of the pumping pipe 3 is connected to the water outlet of the water pump 4, and the other end of the pumping pipe 3 extends to the outside of the well barrel 1, in order to discharge the water in the well barrel 1 through the pumping pipe 3. In order to further increase the rate at which water in the sump enters the well barrel 1, water holes 1-4 are formed on the wall of the well barrel 1, and there are multiple water holes 1-4. In order to ensure that water can enter at a uniform speed and reduce the influence of water pressure on the well barrel 1, thereby ensuring the service life of the well barrel 1, the present invention arranges two adjacent water holes 1-4 at equal distances.

[0025] In order to prevent the water in the sump from entering the well barrel 1 from the top or bottom of the well barrel 1, that is, entering the well barrel 1 without passing through the water holes 1-4 and the filter screen, during which impurities in the sump will also be brought into the well barrel 1, the well barrel 1 is designed as a well barrel upper part 1-1, a well barrel middle part 1-2 and a well barrel lower part 1-3 in the present invention, and the well barrel upper part 1-1, the well barrel middle part 1-2 and the well barrel lower part 1-3 are integrally formed. The integrally formed well barrel 1 can provide better structural stability and integrity because it has no seams or welding points, which may be weak points in traditional structures; the integrally formed well barrel 1 can also better prevent water penetration or leakage because it reduces the number of seams, which Seams may become the source of leakage at the joints; the one-piece well barrel 1 can simplify the construction process because it reduces the workload of on-site assembly and welding, thereby speeding up the construction speed; since there are no seams and welding points, the one-piece well barrel 1 is easier to maintain, reducing maintenance problems caused by aging of seams or damage to welding points; one-piece well barrels 1 usually have a longer service life because they reduce potential failures caused by damage to seams or welding points; the one-piece well barrel 1 is neater and more uniform in appearance, without seams or welding marks, which improves the overall aesthetics; the one-piece well barrel 1 can also be customized according to different geological conditions and usage requirements to adapt to specific environmental and functional requirements. In order to prevent impurities in the sump from entering the well barrel 1, the upper part 1-1 of the well barrel and the lower part 1-3 of the well barrel are both solid structures, and the water holes 1-4 are formed at the middle part 1-2 of the well barrel. This arrangement can also ensure the structural strength of the well barrel 1 and reduce the probability of its damage.

[0026] In order to facilitate connection and reduce the difficulty of connection, and to meet application requirements, the above-mentioned water pumping pipe in the present invention includes two parts, namely a rubber steel wire hose and a PE pipe. In the present invention, a reserved position 1-5 for placing the rubber steel wire hose is formed at the opening of the above-mentioned well bucket 1, mainly to reduce the probability of displacement of the rubber steel wire hose. The cross-section of the reserved position 1-5 in the present invention is square, and can also be other shapes, which are not limited here. The rubber steel wire hose is installed in the reserved position 1-5 and extends to the water pump 4 in the well bucket 1. Under the action of the water pump 4, the water in the well bucket 1 is extracted. The rubber steel wire hose has good flexibility and elasticity due to its internal steel wire reinforcement layer. It can be bent without breaking easily, and is suitable for use in occasions that require frequent movement or bending. The PE pipe has high wear resistance and chemical stability due to its material properties, and is suitable for long-distance transportation and fixed installation. The rubber steel wire hose can withstand a certain pressure and is suitable for occasions that require a certain pressure to transport. The PE pipe can be designed with different wall thicknesses to withstand higher working pressures. The pumping pipe 3 using the two materials can be customized according to different application requirements, which can effectively ensure the performance and service life of the pumping pipe 3. Specifically, the rubber steel wire hose is installed on the well barrel 1 and connected to the water pump 4, one end of the PE pipe is connected to the rubber steel wire hose, and the other end of the PE pipe is introduced into the upper part of the foundation pit to the tertiary sedimentation tank, and finally the water in the well barrel 1 is discharged. The tertiary sedimentation tank here refers to a facility for sewage treatment, which removes suspended solids and other pollutants in water through three consecutive sedimentation stages. The design of this sedimentation tank usually includes the following parts: primary sedimentation area: This is the first stage of the sedimentation tank, and its main purpose is to remove larger suspended particles. As the water flows into the sedimentation tank, larger particles begin to settle due to gravity. Secondary sedimentation zone: After the primary sedimentation zone, the water flows into the second sedimentation zone. Here the water velocity is further reduced, which helps the smaller suspended particles settle. Tertiary sedimentation zone: In the final stage, the water velocity is further slowed down to ensure that even smaller particles can settle to the bottom of the tank. This stage may also include chemical treatment to help remove more difficult to settle materials. Sludge collection zone: At the bottom of each sedimentation zone, there is usually a sludge collection zone to collect the settled solid waste. This sludge is then regularly cleaned and treated. Clear water discharge zone: After the tertiary sedimentation treatment, the supernatant (relatively clean water) is discharged from the top or side of the sedimentation tank for further treatment or direct discharge. The design of tertiary sedimentation tanks can be adjusted according to different needs, such as processing capacity, tank size, water velocity, etc. They are widely used in industrial wastewater treatment, municipal sewage treatment plants and other occasions where suspended solids need to be removed. Through this multi-stage sedimentation process, the clarity and quality of water can be effectively improved, and the burden of subsequent treatment can be reduced.

[0027] In order to fix the position of the filter screen, the filter screen needs to be tied during use to reduce the probability of displacement. In the present invention, the filter screen is fastened to the wall of the well barrel 1 by means of a steel wire rope and other components, and the water pump 4 can be hoisted into the middle position of the well barrel 1 by means of the steel wire rope. In this process, the position of the water pump 4 can be adjusted according to the water level in the well barrel 1. Compared with directly placing the water pump 4 at the bottom of the well barrel 1, the arrangement of the water pump 4 in the present invention can ensure the pumping efficiency of the water pump 4 while reducing the influence of water pressure on the water pump 4, thereby ensuring the service life of the water pump 4 and reducing the use cost.

[0028] The above-mentioned well barrel 1 is welded into a barrel shape by steel plates, mainly because steel plates have high strength and rigidity, and welding into a barrel shape can provide stable structural support to ensure the stability of the well barrel when underground or under pressure. The well barrel welded with steel plates is corrosion-resistant and wear-resistant, and can be used for a long time under harsh environmental conditions, reducing the frequency of maintenance and replacement. Welding can form a sealed joint, reduce the penetration of groundwater or other liquids, and ensure the stability of the internal environment of the well barrel. Steel plates can be cut into different shapes and sizes as needed, and then welded into the required barrel structure to meet different well depth and diameter requirements. The well barrel welded with steel plates can withstand large vertical and horizontal loads, and is suitable for deep wells or high-load application scenarios.

[0029] The water pump 4 in the present invention may be a submersible pump, which can be directly installed in the well barrel 1 without the need for an additional suction pipe, thus simplifying the installation process, and since the submersible pump is located underwater, the risk of air inhalation is low, which helps to maintain efficient operation of the pump. Submersible pumps are particularly suitable for deep well pumping because they can be placed directly underwater, reducing the need for long suction pipes and reducing construction costs.

[0030] A construction method of a bucket well drainage integrated structure in the present invention comprises the following steps: S1, construction preparation, prepare the hoisting device, the well bucket 1, the bracket 2 for supporting and fixing the well bucket 1, the filter, the water pump 3 and the water pump in advance, reduce the waiting time, and thus improve the construction efficiency. In this process, the filter and the water pump 3 can also be arranged at the well bucket 1 first; S2, digging a sump for placing the well bucket 1, and pumping water from the sump. The size of the sump is adapted to the size of the well bucket 1, but slightly larger than the size of the well bucket 1 to prevent the well bucket 1 from being directly inserted into the sump; S3, well bucket 1 is pre-buried. Since the foundation base is composed of continuous sand and gravel, and the water level is too deep, it will cause the hole to collapse. After the excavation of the sump is completed, the well bucket 1 is quickly hoisted into the sump by a hoisting tool; S4, placing a water pump, that is, placing a submersible pump in the well barrel 1, and extracting the accumulated water in the well barrel 1 through the submersible pump; S5, after the installation is completed, a water pumping test is performed by using a water pump, and the water level change in the well barrel 1 is observed; S6. When the water level in the well barrel 1 is about to reach the bottom of the sump, filter material is backfilled at the bottom of the sump and around the well barrel 1. The filter material is gravel with a particle size of about 3 mm and is free of impurities. It is evenly filled around the outer wall of the well barrel 1 to ensure the smooth flow of water in the soil layer and prevent sediment from flowing in, causing blockage of the water pump and reduced precipitation.

[0031] S7. On-site debugging.

[0032] Before installing the well bucket 1, control the bottom elevation of the well bucket 1 before installation. After installation, re-measure the top elevation of the well bucket 1. The bottom elevation before installation and re-measure the top elevation of the well bucket after installation are two important construction steps, which ensure the accuracy and safety of the well bucket installation. Bottom elevation control before installation: This is to determine the height of the bottom of the well bucket 1 relative to a certain reference point (such as the ground, building baseline, etc.) before installing the well bucket 1. This height is usually specified by the design drawings or construction specifications. The purpose of controlling the bottom elevation is to ensure that the well bucket 1 is installed in the correct position and meets the design requirements and usage functions. Re-measure the top elevation of the well bucket after installation: After the installation of the well bucket 1 is completed, it is necessary to re-measure the height of the top of the well bucket 1 relative to the reference point to verify whether the installation is accurate. Re-measurement of the top elevation can ensure that the verticality and height of the well bucket 1 after installation meet the design requirements and avoid structural problems or inconveniences in use caused by installation errors. The importance of these two steps is to ensure that the installation position and height of the well bucket 1 meet the design and safety standards, avoid structural instability or functional failure caused by installation errors, and provide accurate reference data for subsequent construction or use. During the construction process, a level or other measuring tools can be used to measure and remeasure the elevation.

[0033] During the pumping process, the water pump should be ensured to be located in the well barrel 1 and fixed to the well surface with a wire rope. At the same time, the automatic control device should be adjusted according to the amount of water to ensure that the pumping and stopping times match to meet the construction needs.

[0034] During the precipitation process, record precipitation data, including water level changes, water pumping volume, etc. At the same time, set up ground settlement observation points within the precipitation range around the foundation pit, observe synchronously with the precipitation water level, and draw ST curves to grasp the precipitation process.

[0035] Specific analysis of specific construction projects, specific implementation plans take the specific application scenarios of the invention as an example: The groundwater in this project is pore water buried in the Quaternary gravel layer. The measured stable groundwater level is about 6.2 to 7.3 meters below the natural surface, the relative elevation of the water level is 492.70 to 493.99 meters, and the average relative elevation of the water level is about 493.35 meters. The groundwater level varies with the seasons, and its annual fluctuation is generally about 2-3 meters. Based on the existing precipitation construction experience of similar sites, the permeability coefficient of this site is recommended to be k=60~100m / d, and the calculation formula is as follows: (1) Calculation of water inflow: Among them, Q is the water inflow; K is the soil permeability coefficient; H, depth of aquifer; S, maximum depth of foundation pit excavation; R, pumping influence radius; X, imaginary radius (related to the foundation pit area).

[0036] (2) Calculation of water output from a single well: in, S, parameters related to certain characteristics of the well; H. Water level drop; K. Permeability coefficient.

[0037] (3) Determination of the number of well points: Since this project is rather special, involving two buildings with deep foundation pits, and the sump is connected to the elevator shaft, only one facility is needed for one building based on the calculated water inflow and site conditions to ensure uniform precipitation and meet construction requirements.

[0038] (3.1) Tube well type and material selection: The pipe well type includes a barrel shape welded with 2mm thick steel plate, with a diameter of 1000mm and a length of 1.5m, which must meet certain pressure resistance. A 3*3mm-sized hole is set at 90mm in the middle of the barrel. A steel triangle bracket is welded inside the barrel to enhance the stability of the barrel. A layer of steel wire filter should be covered around the hole and tied firmly. A 200*200mm hole is opened at the top of the barrel to place the pumping pipe.

[0039] (3.2) Selection of water pipe and water pump: The front section of the water pump uses a rubber steel hose with a diameter of 150mm, and the rear section uses a PE pipe with a diameter of 150mm. As for the water pump, a submersible pump with a water pumping capacity of 65m³ per hour is used.

[0040] (4) Other considerations (4.1) Groundwater level survey and analysis: After preliminary precipitation in 15 surrounding circular precipitation wells, the water level elevation in the field was measured to be around 489.00 during foundation construction, and the designed bottom plate elevation of 5# and 6# collection pits was 487.35 (including 10mm cushion layer and 20mm mattress layer).

[0041] (4.2) Determination of well depth: When designing the bucket well dewatering plan, the bucket well is determined to be arranged in the center of the sump based on the area, depth and permeability coefficient to be dewatered. The elevation of the top of the bucket well is the bottom elevation of the sump cushion layer, which does not affect subsequent work.

[0042] (4.3) Determination of pipe wall permeability: The drainage capacity of the well barrel was determined by measuring the permeability of the pipe wall and conducting on-site experiments to ensure that the drainage effect of the pipe well meets the on-site construction requirements.

[0043] (5) Earth excavation First, dig a shallower elevator shaft, then dig a sump. When digging to the groundwater level, use a pre-prepared water pump to pump out water for drainage. Use a construction method of excavating and pumping water at the same time until the excavation reaches the required design bottom elevation, and then dig again to place the well bucket.

[0044] (6) Arrangement of well barrels and pumping facilities (6.1) Installation of well bucket: After the well barrel is transported to the construction site, when the sump is excavated to the required elevation, the well barrel is hoisted into the center of the sump, and the distance from each side of the CFG pile head at the bottom of the pit is kept consistent.

[0045] (6.2) Installation of pumping facilities: Before installing the water pump, it should be firmly connected to the rubber steel pipe. The wires of the nearby switch box should be connected to the water pump, and the steel wire rope should be used to lift it into the middle of the well barrel. The outlet direction of the rubber steel pipe should coincide with the reserved position of the well opening. After the PE pipe at the rear section is connected to the rubber steel pipe, it should be introduced into the upper part of the foundation pit to the third-level sedimentation tank, so that the water can be discharged into the municipal sewage pipe network.

[0046] Compared with the traditional pipe well dewatering method, the use of bucket well dewatering integrated structure for foundation pit dewatering has a wider range of applications. The integrated construction method of bucket well has a more flexible structural layout, simpler assembly, convenient construction and easy adjustment. The bucket well is prefabricated in a BIM modeling factory, and the whole body is welded with steel plates. There are triangular brackets inside to enhance the stability of the well barrel. The drainage efficiency has been significantly improved compared with the traditional pipe well, and the bucket well is not easy to damage, with high economic benefits.

[0047] The integrated barrel well construction method can reduce construction investment resources, save construction process costs, require less preliminary preparation work, and closely coordinate between work types and machinery, resulting in high construction efficiency and time savings.

[0048] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0049] Although the following terms are used more frequently in this article: 1, well bucket; 1-1, upper part of well bucket; 1-2, middle part of well bucket; 1-3, lower part of well bucket; 1-4, water hole; 1-5, reserved position; 2, bracket; 2-1, leg; 2-2, reinforcing cross bar; 3, water pump; 4, water pump, etc., the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A bucket well drainage integrated structure, characterized by: The invention comprises a well barrel (1), a bracket (2) for supporting and fixing the position of the well barrel (1), a filter screen, a water pump (3) and a water pump (4); the filter screen is coated on the outer wall surface or the inner wall surface of the well barrel (1); one end of the water pump (3) is connected to the water outlet of the water pump (4), and the other end of the water pump (3) extends to the outside of the well barrel (1); and water holes (1-4) are formed on the wall surface of the well barrel (1).

2. The integrated structure for drainage and lowering of a bucket well according to claim 1 is characterized by: The well barrel (1) comprises an upper part (1-1), a middle part (1-2) and a lower part (1-3) of the well barrel, wherein the upper part (1-1), the middle part (1-2) and the lower part (1-3) of the well barrel are integrally formed; the upper part (1-1) and the lower part (1-3) of the well barrel are both solid structures, and the water hole (1-4) is formed in the middle part (1-2) of the well barrel.

3. The integrated structure for drainage and lowering of a bucket well according to claim 2 is characterized by: There are a plurality of water through holes (1-4), and two adjacent water through holes (1-4) are arranged at equal distances.

4. The integrated structure for drainage and lowering of a bucket well according to claim 1 is characterized by: The water pumping pipe (3) comprises two parts, namely a rubber steel hose and a PE pipe. The rubber steel hose is connected to the water pump (4). One end of the PE pipe is connected to the rubber steel hose. The other end of the PE pipe is introduced into the upper part of the foundation pit to the third-level sedimentation tank, and finally the water in the well barrel (1) is discharged.

5. The integrated structure for drainage and lowering of a bucket well according to claim 4 is characterized by: A reserved position (1-5) for placing a rubber steel hose is formed at the opening of the well barrel (1).

6. The integrated structure for drainage and lowering of a bucket well according to claim 1 is characterized by: The well barrel (1) is welded from steel plates into a barrel shape.

7. The integrated structure for drainage and lowering of a bucket well according to claim 1 is characterized by: The water pump (4) is a submersible pump.

8. A construction method of a barrel well drainage integrated structure, using a barrel well drainage integrated structure as claimed in any one of claims 1 to 7, characterized in that: The method comprises the following steps: S1, construction preparation, pre-fabrication of a well barrel (1), including installing a filter screen on the wall of the well barrel (1) and fixing a bracket (2) in the well barrel (1); S2, excavating a sump for placing the well barrel (1) and performing a pumping operation on the sump; S3, pre-burying the well barrel (1), and quickly lifting the well barrel (1) into the sump by means of a lifting tool; S4, placing a water pump; S5, after installation, performing a pumping test by means of the water pump and observing the change in the water level in the well barrel (1); S6, when the water level in the well barrel (1) reaches the bottom of the sump, backfilling filter material at the bottom of the sump and around the well barrel (1); S7, on-site commissioning.

9. The construction method of the integrated structure of bucket well drainage and lowering according to claim 8 is characterized by: Before installing the well barrel (1), the bottom elevation of the well barrel (1) is controlled, and after the installation is completed, the top elevation of the well barrel (1) is re-measured.

10. The construction method of the integrated structure of bucket well drainage and lowering according to claim 8, characterized in that: In S6, the filter medium is gravel with a particle size of about 3 mm and no impurities.

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