Dewatering well device capable of adjusting water volume and water pressure

Abstract

The utility model discloses a dewatering well device capable of adjusting water volume and water pressure, which can adopt corresponding dewatering and water stopping designs according to different construction stages, adopts a corrugated pipe and the like as a dewatering well pipe in an earth cutting stage, and adopts a steel pipe as the dewatering well pipe in a concrete construction stage needing water stopping. And the water stop plates are respectively arranged at different stages of the foundation cushion layer, the foundation bottom plate and the bottom plate surface layer, so that the water stop effect is ensured. Water can be stopped by pulling the screw rod under the condition of water pressure through the connection effect of the screw rod and the water stop steel plate, and the steel pipe and the welded water stop steel plate can be plugged under the condition of no water pressure by dismounting the tee joint, the adjusting rod and the nut. The precipitation water pressure and water quantity can be adjusted, and the water pressure borne by the basement bottom plate is balanced. The water stop steel plate at the water inlet can be closed and opened through the adjusting sleeve, the water outlet amount can be controlled through the valve at the tee joint, and the water pressure of the dewatering well can be measured. The water pressure borne by the basement bottom plate can be balanced by controlling the water pressure of each dewatering well.

Description

Technical Field

[0001] The utility model relates to the technical field of dewatering in the basement of building construction projects, and particularly relates to a dewatering well device capable of adjusting water volume and water pressure. Background Art

[0002] Combined dewatering inside and outside the foundation pit is a dewatering method during the excavation of underground foundation pits, which can achieve good dewatering effects, with a relatively uniform dewatering peak surface, strong adaptability, and is particularly suitable for large and deep foundation pits. The dewatering measures and their reliable effects in deep foundation pits rich in groundwater, especially those affected by underground confined water, are one of the important construction measures to ensure the safety of deep foundation pit operations and the quality of the project. Since the groundwater level is higher than the basement floor slab, continuous dewatering inside and outside the foundation pit is required throughout the construction period. For large and deep foundation pits, a sufficient number of dewatering wells need to be maintained inside the pit to ensure the dewatering effect. The dewatering wells need to penetrate the basement floor slab, which has a greater impact on the foundation structure and waterproof quality. The more dewatering wells there are, the greater the impact, and the more difficult the subsequent waterproof treatment is. In actual construction, due to the poor waterproof effect of the post-cast strip, the post-cast strip is always in a water-filled state before it is closed. Therefore, in many construction sites, the post-cast strip and the sump are used as dewatering wells, and the number of dewatering wells is reduced or even cancelled when pouring the floor slab. Because the post-cast strip is used as a dewatering well, the closure of the post-cast strip must meet the anti-floating requirements, and the closure construction of the post-cast strip must wait until the backfill construction of the basement top slab is completed. Theoretically, the closure times of the basement floor slab and the top slab are the same (the settlement and expansion effects are the same), but due to the long waiting time (6 - 12 months) for the backfill construction above the basement top slab after it is closed, the post-cast strip of the basement floor slab cannot be closed during this period, and the exterior wall of the basement cannot be closed either. During this period, the groundwater and rainwater in the basement fill the post-cast strip, and the humidity in the basement is serious, which has a great impact on the construction period and quality of the basement decoration project and installation project. If the post-cast strip of the basement floor slab and the post-cast strip of the exterior wall of the basement can be closed earlier (at the same time as the basement top slab), the indoor environment of the basement will be greatly improved, and the inspection and treatment of seepage at the lower part of the basement floor slab and the exterior wall can be carried out earlier, which is extremely beneficial to the basement decoration construction and installation construction, and can improve the construction quality and shorten the construction period.

[0003] 1. Due to the troublesome anti-seepage construction of traditional dewatering wells, their use is minimized at the construction site.

[0004] 2. Traditional dewatering wells do not have the function of adjusting the dewatering volume and water pressure.

[0005] Traditional dewatering wells do not have a design that allows the post-cast strip of the basement to be closed earlier. Content of the Utility Model

[0006] The purpose of the present utility model is to provide a precipitation well device capable of adjusting water volume and water pressure, which can seal the basement floor in advance and improve the plugging quality of the precipitation well and the sealing quality of the post-cast strip, and solve the above defects in the prior art.

[0007] A precipitation well device capable of adjusting water volume and water pressure runs through the floor cushion and the floor surface layer, and includes a well body and an adjusting device. The well body includes a corrugated sedimentation pipe and a steel pipe dewatering pipe. The bottom wall of the corrugated sedimentation pipe is sealed and the opening faces upward. One end of the steel pipe dewatering pipe is embedded above the corrugated sedimentation pipe, and a plugging component is arranged at the water inlet of the steel pipe dewatering pipe located in the corrugated sedimentation pipe for controlling the water inlet and water stop in the well body. The other end of the steel pipe dewatering pipe is connected to the adjusting device through a tee device, and the adjusting device passes through the steel pipe dewatering pipe and is connected to the plugging component for controlling the water outlet volume in the well body. The tee device is communicated with the outside through a controller for controlling the water pressure in the well body.

[0008] In one embodiment, the steel pipe dewatering pipe runs through the floor cushion and the floor surface layer, and a water stop ring is provided at the connection of the steel pipe dewatering pipe with the corrugated sedimentation pipe and the tee device, and the water stop ring is arranged around the cross-section of the steel pipe dewatering pipe.

[0009] In one embodiment, the adjusting device includes an adjusting pipe, a screw rod and a nut. One end of the adjusting pipe is sleeved with the tee device, the nut is arranged at the other end of the adjusting pipe, and the screw rod passes through the steel pipe dewatering pipe and is connected to the nut.

[0010] In one embodiment, the plugging component includes a plugging plate and a sealing ring, and the sealing ring is located between the plugging plate and the water inlet of the steel pipe dewatering pipe.

[0011] In one embodiment, the tee device includes a series pipe connected to the steel pipe dewatering pipe and a valve. The valve is arranged on the series pipe, and the other end of the series pipe is connected to an external hose.

[0012] The above technical solution has the following advantages or beneficial effects:

[0013] This precipitation well device capable of adjusting water volume and water pressure of the present utility model realizes the following compared with the traditional precipitation well in the foundation pit:

[0014] First, corresponding precipitation and water stop designs are adopted according to different construction stages. The corrugated pipe is used as the precipitation well pipe in the excavation stage, and the steel pipe is used as the precipitation well pipe in the concrete construction stage where water stop is required. And water stop plates are respectively arranged at different stages of the foundation cushion, the foundation slab and the floor surface layer to ensure the water stop effect.

[0015] Second, the closed construction operation is easy. Through the connection between the screw and the water-stop steel plate, water can be stopped by pulling the screw under the condition of water pressure. By removing the tee, adjusting rod and nut, the steel pipe and the welded water-stop steel plate can be sealed under the condition of no water pressure.

[0016] Third, this dewatering well device can adjust the dewatering water pressure and water volume to balance the water pressure on the basement floor slab. By adjusting the sleeve, the water-stop steel plate at the water inlet can be closed and opened. The water outlet volume can be controlled through the valve at the tee, and the water pressure of this dewatering well can be measured through the hose. By controlling the water pressure of each dewatering well, the water pressure on the basement floor slab can be balanced.

[0017] Fourth, the dewatering pipe well can be closed at any time according to needs or can be retained for a long time. The groundwater can be fully utilized for construction, cleaning, greening, etc. Since there are water-stop screws and tee valves designed, the dewatering wells that do not affect the space usage position can be retained for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will discuss the drawings required for the description of the embodiments or the prior art. Obviously, the technical solutions described in conjunction with the drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other embodiments and their drawings can be obtained based on the embodiments shown in these drawings.

[0019] Figure 1 It is a schematic structural diagram of a dewatering well device with adjustable water volume and water pressure according to the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments described in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts are within the scope protected by the present invention.

[0021] The following is combined with the specification appendices Figure 1 , to make a detailed description of the structural design of this device.

[0022] A precipitation well device with adjustable water volume and water pressure, penetrating through the bottom plate cushion layer and the bottom plate surface layer, comprising a well body and an adjusting device. The well body includes a corrugated sedimentation pipe 1 and a steel pipe water discharge pipe 2. The bottom wall of the corrugated sedimentation pipe 1 is sealed and the opening faces upward. One end of the steel pipe water discharge pipe 2 is embedded above the corrugated sedimentation pipe 1, and a plugging assembly is arranged at the water inlet of the steel pipe water discharge pipe 2 located inside the corrugated sedimentation pipe 1 for controlling the water inflow and water stop in the well body. The other end of the steel pipe water discharge pipe 2 is connected to the adjusting device through a tee device 4. The adjusting device passes through the steel pipe water discharge pipe 1 and is connected to the plugging assembly for controlling the water discharge volume in the well body. The tee device is communicated with the outside through a controller for controlling the water pressure in the well body.

[0023] The steel pipe water discharge pipe 2 is respectively provided with water stop plates (ring-shaped steel plates) at the positions in the middle of the foundation cushion layer, the middle of the foundation bottom plate, and the middle of the bottom plate surface layer to ensure the water stop effect.

[0024] Further, in a preferred embodiment of the precipitation well device with adjustable water volume and water pressure of the present utility model, the steel pipe water discharge pipe 2 penetrates through the bottom plate cushion layer and the bottom plate surface layer. A water stop ring is provided at the connection of the steel pipe water discharge pipe 2 with the corrugated sedimentation pipe 1 and the tee device 4, and the water stop ring is arranged around the cross-section of the steel pipe water discharge pipe 2.

[0025] Further, in a preferred embodiment of the precipitation well device with adjustable water volume and water pressure of the present utility model, the adjusting device includes an adjusting pipe 5, a screw rod 3, and a nut 7. One end of the adjusting pipe 5 is sleeved with the tee device 4, a nut 7 is arranged at the other end of the adjusting pipe 5, and the screw rod 3 penetrates through the steel pipe water discharge pipe 2 and is connected to the nut 7. An adjusting sleeve 6 is sleeved outside the upper end of the adjusting pipe 5.

[0026] Further, in a preferred embodiment of the precipitation well device with adjustable water volume and water pressure of the present utility model, the plugging assembly includes a plugging plate 9 and a sealing ring 10, and the sealing ring 10 is located between the plugging plate 9 and the water inlet of the steel pipe water discharge pipe 2.

[0027] Further, in a preferred embodiment of the precipitation well device with adjustable water volume and water pressure of the present utility model, the tee device 4 includes a series pipe connected to the steel pipe water discharge pipe 2 and a valve 13. The valve 13 is arranged on the series pipe, and the other end of the series pipe is connected to an external hose 14.

[0028] The utility model can seal the basement floor in advance and improve the sealing quality of the precipitation well and the sealing quality of the post-casting strip. The sealing construction of the precipitation well is easy to operate and the waterproof effect is reliable. The precipitation well can adjust the precipitation water pressure and water volume to balance the water pressure on the basement floor. The precipitation well can be closed at any time as needed, and can also be retained for a long time. The groundwater can be fully utilized for construction, cleaning, greening, etc.

[0029] The construction method of the utility model comprises the following steps:

[0030] Step A, when excavating the gravel layer, a corrugated sedimentation pipe is set in the precipitation well;

[0031] Step B, when excavating to the bottom plate cushion layer, installing a steel pipe downcomer on the corrugated sedimentation pipe in the downcomer well;

[0032] Step C, when excavating to between the bottom plate cushion layer and the bottom plate surface layer, a water stop plate is provided on the steel pipe downcomer;

[0033] Step D, providing a plugging assembly at one end of the water inlet of the steel pipe downcomer;

[0034] Step E, providing a regulating device at the other end of the steel pipe downcomer, wherein the regulating device controls water inlet and water stop through the plugging assembly;

[0035] Step F, a three-way device is arranged in the middle of the steel pipe downcomer, and the three-way device controls the water output and water pressure.

[0036] During earth excavation, a corrugated pipe (plastic pipe, etc.) drainage well is first set up. When excavating to the foundation cushion layer, it is changed to a steel pipe drainage pipe. Waterstop plates and annular steel plates are respectively set up in the middle of the foundation cushion layer, the middle of the foundation bottom plate, and the middle of the bottom plate surface layer to ensure the water stopping effect. A blocking steel plate and a rubber sealing ring are set up at the water inlet of the steel pipe to ensure that the water inlet can be sealed. The regulating pipe and the nut are connected to the uppermost section of the steel pipe to control the water inlet and water stopping through the screw. The tee and valve are set up in the middle of the steel pipe to control the water output and water pressure. A hose is connected to the tee to transport water to any place, and a water pump can also be used to pump water.

[0037] In summary, compared with the traditional precipitation well in the foundation pit, this precipitation well device with adjustable water volume and water pressure has achieved the following advantages:

[0038] 1. According to the different stages of construction, corresponding dewatering and water-stopping designs are adopted. In the excavation stage, corrugated pipes are used as dewatering well pipes. In the concrete construction stage where water-stopping is required, steel pipes are used as dewatering well pipes. Water-stopping plates are set at different stages of the foundation cushion layer, foundation slab, and slab surface layer to ensure the water-stopping effect.

[0039] Second, the closed construction operation is easy. Through the connection between the screw and the water-stop steel plate, the water can be stopped by pulling the screw under the condition of water pressure. The tee, adjusting rod and nut can be removed to block the steel pipe and weld the water-stop steel plate under the condition of no water pressure.

[0040] Third, this dewatering well device can adjust the dewatering water pressure and water volume to balance the water pressure on the basement floor slab. The water-stop steel plate at the water inlet can be closed and opened by adjusting the sleeve, the water output volume can be controlled by the valve at the tee, and the water pressure of this dewatering well can be measured by the flexible hose. By controlling the water pressure of each dewatering well, the water pressure on the basement floor slab can be balanced.

[0041] Fourth, the dewatering pipe well can be closed at any time according to needs or can be retained for a long time. The groundwater can be fully utilized for construction, cleaning, greening, etc. Since the water-stop screw and the tee valve are designed, the dewatering wells that do not affect the spatial use position can be retained for a long time.

[0042] The above are only the preferred embodiments of the present utility model, and do not limit the implementation manners and protection scope of the present utility model accordingly. For those skilled in the art, it should be realized that all the equivalent replacements and obvious changes made by using the description and illustrations of the present utility model should be included in the protection scope of the present utility model.

[0043] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

Claims

1. A dewatering well device capable of adjusting water volume and water pressure, which penetrates the bottom plate cushion layer and the bottom plate surface layer, and is characterized by: It includes a well body and an adjusting device, wherein the well body includes a corrugated sedimentation pipe and a steel pipe downcomer; the bottom wall of the corrugated sedimentation pipe is sealed and the opening faces upward; one end of the steel pipe downcomer is embedded above the corrugated sedimentation pipe, and the water inlet of the steel pipe downcomer located in the corrugated sedimentation pipe is provided with a blocking component for controlling water inlet and water stopping in the well body; the other end of the steel pipe downcomer is connected to the adjusting device through a three-way device, and the adjusting device passes through the steel pipe downcomer and is connected to the blocking component for controlling the water output in the well body; the three-way device is connected to the outside through a controller for controlling the water pressure in the well body.

2. A dewatering well device capable of adjusting water volume and water pressure according to claim 1, characterized in that: The steel pipe downcomer penetrates the bottom plate cushion layer and the bottom plate surface layer, and a water stop ring is provided at the connection between the steel pipe downcomer, the corrugated sedimentation pipe and the three-way device, and the water stop ring is arranged on the cross section of the steel pipe downcomer.

3. A dewatering well device capable of adjusting water volume and water pressure according to claim 2, characterized in that: The regulating device comprises a regulating tube, a screw rod and a nut. One end of the regulating tube is sleeved with the three-way device, and the other end of the regulating tube is provided with the nut. The screw rod penetrates the steel pipe downcomer and is connected with the nut.

4. A dewatering well device capable of adjusting water volume and water pressure according to claim 3, characterized in that: The blocking assembly comprises a blocking plate and a sealing ring, wherein the sealing ring is located between the blocking plate and the water inlet of the steel pipe downcomer.

5. A dewatering well device capable of adjusting water volume and water pressure according to claim 4, characterized in that: The three-way device includes a series pipe and a valve connected to the steel pipe downcomer. The valve is arranged on the series pipe, and the other end of the series pipe is connected to an external hose.

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