Underground drainage device based on original deep well precipitation hole arrangement

Abstract

The utility model relates to the technical field of basement drainage devices, and discloses an underground drainage device arranged based on an original deep well precipitation hole, which can lead underground water into a water collecting well from a deep well precipitation pre-drilling hole, and comprises a bottom plate, a drainage pipe, a drainage pipe and a drainage pipe, the filter pipe is inserted into the deep well dewatering pre-drilling hole, the top of the filter pipe is exposed out of the upper side of the bottom plate, and the middle of the surface of the filter pipe extends to the bottom and is provided with a plurality of water seepage holes; the filter screen is arranged on the filter pipe, sleeves the filter pipe and wraps the water seepage holes in the surface of the filter pipe; a gap between the inner cavity of the deep well dewatering pre-drilling hole and the outer cavity of the filter pipe and the filter screen is filled with the filter sand; one end of the guide assembly is connected with the top of the filter pipe, and the other end is connected into the water-collecting well.

Description

Technical Field

[0001] The utility model relates to the technical field of basement drainage devices, in particular to an underground drainage device based on the original deep well drainage hole arrangement. Background Art

[0002] As the foundation of a building, the quality of its design and construction directly affects the stability and safety of the building. Among them, the anti-floating of the basement is particularly important because it is directly related to the safety of the building under changes in the groundwater level or other hydrogeological conditions. After the construction of the basement is completed, precipitation often stops. Before the main structure is fully completed, the deadweight of the basement may not be able to resist the buoyancy of the groundwater, or when it happens to be a season with concentrated rainfall, the rising water level causes the bottom plate to float. Therefore, it is extremely important to take corresponding anti-floating measures after the basement structure is completed.

[0003] In order to solve these problems, the present application proposes an underground drainage device based on the original deep well drainage hole arrangement. The device reduces the necessity of new drainage facilities by making full use of the existing deep well drainage pipe system, which not only reduces construction costs, but also effectively controls the groundwater level and reduces the impact of buoyancy on the basement structure, thereby improving the safety and durability of the building. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an underground drainage device based on the original deep well dewatering hole arrangement, which solves the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] An underground drainage device based on the original deep well drainage hole arrangement can introduce groundwater from the deep well drainage pre-drilled holes into the water collection well, comprising:

[0007] The bottom plate is cast on the top of the pre-drilled hole for deep well dewatering;

[0008] The filter tube is inserted into the pre-drilled hole of the deep well, with the top exposed on the upper side of the bottom plate, and multiple water seepage holes are arranged from the middle part to the bottom of the filter tube surface;

[0009] The filter screen is arranged on the filter tube sleeve and covers the water seepage holes on the surface of the filter tube;

[0010] Filter sand is filled in the gap between the inner cavity of the deep well pre-drilling hole and the outer cavity of the filter tube and filter screen;

[0011] The guide assembly has one end connected to the top of the filter tube and the other end connected to the water collection well.

[0012] Optionally, a water stop ring plate is provided in the middle of the bottom plate, and the side of the water stop ring plate away from the bottom plate is connected to the filter tube.

[0013] Optionally, the guide assembly includes a sealing plate, a transfer shaft and a hose;

[0014] The sealing plate is arranged on the top of the filter tube;

[0015] One end of the transfer shaft is connected to the middle part of the upper surface of the sealing plate;

[0016] The hose is connected to an end of the adapter shaft away from the sealing plate.

[0017] Optionally, the transfer shaft includes a straight tube, a right-angle elbow and a bundled tube;

[0018] The straight pipe is arranged in the middle of the sealing plate and is connected with the filter pipe;

[0019] The right-angle elbow is connected to the top of the straight pipe;

[0020] The bundle connection is arranged at one end of the right-angle elbow away from the straight pipe.

[0021] Optionally, a gate valve is provided in the middle of the connection between the bundle connection and the right-angle elbow, one end of the gate valve is connected to the bundle connection, and the other end is connected to the right-angle elbow.

[0022] The utility model provides an underground drainage device based on the original deep well drainage hole arrangement, which has the following beneficial effects:

[0023] 1. Through the coordinated setting between the bottom plate, filter tube and guide components, the defect of bottom plate floating caused by high groundwater level and insufficient basement self-weight can be solved even when the foundation is completed. At the same time, based on the setting, automatic dewatering and pressure reduction can be achieved when the groundwater pressure rises, effectively solving the possibility of bottom plate floating.

[0024] 2. Through the coordinated setting of filter pipes, seepage holes, filter screens and filter sand, impurities in groundwater can be filtered during the process of boosting pressure and water. When precipitation and pressure reduction are performed through the upper guide components, the water quality is better. The groundwater in the precipitation process will be automatically collected in the collection well, and the collected water can be used for circulating water, achieving the effect of energy saving and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the guide assembly of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the water stop ring plate of the utility model;

[0028] Figure 4 This is a schematic diagram of the deep well dewatering pre-drilling structure of the utility model.

[0029] In the figure: 1. pre-drilled hole for deep well dewatering; 2. water collection well; 3. bottom plate; 4. filter pipe; 41. seepage hole; 5. filter screen; 6. filter sand; 7. guide assembly; 71. sealing plate; 72. adapter shaft; 721. straight pipe; 722. right-angle elbow; 723. bundle connection; 73. hose; 8. water stop ring plate; 9. gate valve. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments.

[0031] In the description of the present invention, it should be understood that the terms "lateral", "longitudinal", "end", "edge", "sidewall", "up", "down", "upper part", "lower part", "directly above", "surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "end", "head" and "tail" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solution of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] This application proposes an underground drainage device based on the original deep well drainage hole arrangement, which is as follows: Figure 1-4 The present application is used to introduce groundwater in the deep well pre-drilling hole 1 into the water collection well 2, solving the defect of the bottom plate floating due to the completion of the bottom plate but the high groundwater level and the insufficient self-weight of the basement.

[0033] Its main components include a filter pipe 4 that penetrates the bottom plate 3 and enters the deep well drainage pre-drilled hole 1, a filter screen 5 arranged at the bottom of the filter pipe 4, filter sand 6 filled in the gap between the filter screen 5 and the filter pipe 4 and the deep well drainage pre-drilled hole 1, and a guide component 7 that guides the groundwater entering the filter pipe 4 into the collection well 2.

[0034] For reference Figure 1-4 , underground drilling is carried out in the construction area, the depth and position of the drilling hole are determined according to the geological conditions and the groundwater level, and a deep well dewatering pre-drilling hole 1 is formed; wherein the deep well dewatering pre-drilling hole 1 is arranged perpendicular to the ground.

[0035] For reference Figure 2A filter tube 4 with a diameter smaller than that of the deep well dewatering pre-drilled hole 1 is inserted into the deep well dewatering pre-drilled hole 1, wherein the top of the filter tube 4 is exposed on the upper side of the deep well dewatering pre-drilled hole 1, and a filter screen 5 is provided on the bottom of the surface of the filter tube 4. The filter screen 5 uses an existing 40-mesh nylon net. A plurality of seepage holes 41 are provided in the portion of the filter tube 4 wrapped by the filter screen 5. Groundwater enters the filter tube 4 through the seepage holes 41, and the filter screen 5 isolates impurities in the process of entering the filter tube 4.

[0036] Considering that the filtering effect of a single filter screen 5 is relatively weak, filter sand 6 is filled in a portion of the outer wall of the filter tube 4 located in the deep well dewatering pre-drilled hole 1 but without the seepage hole 41, and in the connection gap between the outer wall of the filter screen 5 and the deep well dewatering pre-drilled hole 1. The filter sand 6 is existing yellow sand, which fits tightly to the filter screen 5 and the filter tube 4. Thus, the groundwater is first filtered of impurities by the filter sand 6, and then filtered for the second time by the filter screen 5, and finally enters the inside of the filter tube 4, and continues upward until the top of the filter tube 4, and then the groundwater is discharged outward through the guide assembly 7.

[0037] After the filter tube 4, filter screen 5 and filter sand 6 are arranged, concrete is poured on the top of the deep well dewatering pre-drilled hole 1 to form a bottom plate 3, which is the engineering bottom plate. The top of the filter tube 4 is higher than the bottom plate 3, and when the groundwater is discharged to the outside, it is discharged from the top of the filter tube 4. Considering that the groundwater may leak through the pipe wall to the top of the bottom plate 3, when pouring the bottom plate 3, a water stop ring plate 8 is first welded on the upper surface of the filter tube 4 where the deep well dewatering pre-drilled hole 1 is not inserted. The water stop ring plate 8 is formed by butt welding two annular steel plates. After welding, the bottom plate 3 is poured, and when pouring, ensure that the top of the filter tube 4 is exposed on the upper side of the bottom plate 3.

[0038] In order to ensure that the groundwater flowing into the top of the filter tube 4 can flow to the water collection well 2 for collection and use for subsequent industrial needs, a guide component 7 is set on the top of the filter tube 4, and the other end of the guide component 7 is connected to the water collection well 2. Therefore, when the groundwater pressure is increased, the guide component 7 can be used to reduce the pressure and reduce the water level, and the water can be guided into the water collection well 2 for subsequent work.

[0039] For reference Figure 1-4 The guide assembly 7 includes a sealing plate 71, a transfer shaft 72 and a hose 73. The sealing plate 71 is welded to the top of the filter tube 4, and a round hole is provided in the middle of the sealing plate 71. One end of the transfer shaft 72 is connected to the middle of the upper surface of the sealing plate 71 corresponding to the round hole, and is used for direction transfer according to the position of the water collection well 2. The hose 73 is connected to the end of the transfer shaft 72 away from the sealing plate 71 to discharge the groundwater into the water collection well 2.

[0040] The transfer shaft 72 includes a straight pipe 721, a right-angle elbow 722 and a bundle joint 723. The straight pipe 721 is welded to the middle of the sealing plate 71 and communicated with the filter tube 4; the right-angle elbow 722 is communicated to the top of the straight pipe 721; the bundle joint 723 is communicated to the end of the right-angle elbow 722 away from the straight pipe 721. In order to control the water flow when the hose 73 is moved, a gate valve 9 is provided in the middle of the connection between the bundle joint 723 and the right-angle elbow 722, one end of the gate valve 9 is connected to the bundle joint 723, and the other end is connected to the right-angle elbow 722.

[0041] In the utility model, the working steps of the device are as follows:

[0042] First, determine the number and location of the precipitation wells to be used, and vertically open a deep well precipitation pre-drilled hole 1, then prepare a filter screen 5 and set it on the position where the filter tube 4 is provided with the seepage hole 41, and then weld the top of the filter screen 5 to the filter tube 4. Subsequently, fill a portion of filter sand 6 at the bottom of the deep well precipitation pre-drilled hole 1, and then insert the assembled filter screen 5 and filter tube 4 into the middle of the deep well precipitation pre-drilled hole 1, and the bottom thereof does not exceed a portion of the pre-buried filter sand 6.

[0043] Secondly, after the filter tube 4 is inserted, there is a gap between it and the deep well dewatering pre-drilled hole 1, and the filter sand 6 is filled in the gap until the gap in the deep well dewatering pre-drilled hole 1 is completely filled and the height is located at the bottom position of the basement floor 3.

[0044] Then, the basement floor cushion layer, waterproof layer, and waterproof layer protective layer are completed in sequence, and then the basement floor reinforcement is tied. During this period, a water stop ring plate 8 is welded on the upper part of the filter tube 1, and the bottom plate 3 is formed after pouring concrete and curing, and then a sealing plate 71 is welded on the top of the filter tube 4.

[0045] Finally, a circular hole is opened in the middle of the sealing plate 71, and the corresponding circular hole of the straight pipe 721 is welded on the sealing plate 71 and connected with the filter tube 4, and then the right-angle elbow 722 is threadedly connected to the straight pipe 721 to form a connection, and then the gate valve 9 and the bundle 723 are installed in sequence, and finally the hose 73 is connected to the other side of the bundle 723, and the hose 73 is extended to the water collection well 2 to complete the overall arrangement. The groundwater is first filtered through the filter sand 6, and then filtered through the filter screen 5 and enters the filter tube 4 from the seepage hole 41. When the groundwater pressure and water level increase, the water level reaches the top of the filter tube 4, and the water is led out through the guide assembly 7, forming a pressure reduction and precipitation effect, and the led groundwater can flow to the water collection well 2 through the hose for subsequent operations.

[0046] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of protection claimed by the utility model. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An underground drainage device based on the original deep well drainage hole arrangement, which can collect groundwater from the deep well drainage pre-drilled hole (1) into a water collection well (2), and a bottom plate (3) is cast on the top of the surface of the deep well drainage pre-drilled hole (1), characterized in that: include, The filter tube (4) is inserted into the deep well pre-drilled hole (1), with the top exposed on the upper side of the bottom plate (3), and a plurality of water seepage holes (41) are provided from the middle of the surface of the filter tube (4) to the bottom; A filter screen (5) is arranged on the filter tube (4), sleeved on the filter tube (4), and covers the water seepage holes (41) on the surface of the filter tube (4); Filter sand (6) is filled in the gap between the inner cavity of the deep well dewatering pre-drilled hole (1) and the outer cavity of the filter tube (4) and the filter screen (5); The guide assembly (7) has one end connected to the top of the filter tube (4) and the other end connected to the water collection well (2).

2. The underground drainage device based on the original deep well drainage hole arrangement according to claim 1 is characterized in that: A water stop ring plate (8) is provided in the middle of the bottom plate (3), and the side of the water stop ring plate (8) away from the bottom plate (3) is connected to the filter tube (4).

3. The underground drainage device based on the original deep well drainage hole arrangement according to claim 1 is characterized in that: The guide assembly (7) comprises a sealing plate (71), a transfer shaft (72) and a hose (73); The sealing plate (71) is arranged on the top of the filter tube (4); One end of the transfer shaft (72) is connected to the middle portion of the upper surface of the sealing plate (71); The hose (73) is connected to an end of the adapter shaft (72) away from the sealing plate (71).

4. The underground drainage device based on the original deep well drainage hole arrangement according to claim 3 is characterized in that: The transfer shaft (72) comprises a straight tube (721), a right-angle bent tube (722) and a bundle joint (723); The straight tube (721) is arranged in the middle of the sealing plate (71) and is connected to the filter tube (4); The right-angle elbow (722) is connected to the top of the straight pipe (721); The bundle connection (723) is connected to an end of the right-angle elbow (722) away from the straight tube (721).

5. The underground drainage device based on the original deep well drainage hole arrangement according to claim 4 is characterized in that: A gate valve (9) is provided in the middle of the connection between the bundle connection (723) and the right-angle bend pipe (722); one end of the gate valve (9) is connected to the bundle connection (723), and the other end is connected to the right-angle bend pipe (722).

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