CN215857808U - Foundation ditch drilling steel reinforcement cage precipitation well - Google Patents
Foundation ditch drilling steel reinforcement cage precipitation well Download PDFInfo
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- CN215857808U CN215857808U CN202122191315.7U CN202122191315U CN215857808U CN 215857808 U CN215857808 U CN 215857808U CN 202122191315 U CN202122191315 U CN 202122191315U CN 215857808 U CN215857808 U CN 215857808U
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- steel reinforcement
- pit
- sewage pump
- dewatering
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Abstract
The utility model discloses a foundation pit drilling steel reinforcement cage dewatering well.A dewatering pit is formed on the earth excavation ground, and comprises a steel reinforcement cage, a composite filter screen, a sewage pump, a drain pipe and a stone filter material; the steel reinforcement cage is arranged in the precipitation pit, the outer ring of the steel reinforcement cage wraps the composite filter screen, the composite filter screen comprises two layers of close mesh type safety nets and one layer of geotextile, the one layer of geotextile is clamped between the two layers of close mesh type safety nets, and the stone filter material is filled between the outer wall of the steel reinforcement cage and the inner wall of the precipitation pit; the sewage pump is positioned in the reinforcement cage, and a water outlet of the sewage pump is movably connected with the water discharge pipe through a hoop. The utility model provides a foundation pit drilling steel reinforcement cage dewatering well, which solves the problems of draining underground water, improving the filtering effect of a device and improving the working efficiency.
Description
Technical Field
The utility model relates to a dewatering well, in particular to a foundation pit drilling steel reinforcement cage dewatering well.
Background
The excavation depth of the foundation pit on the engineering is generally lower than the underground water level, so that reasonable measures are necessary to carry out artificial precipitation in order to reduce the influence of underground water on earthwork excavation. The majority of construction projects adopt precipitation modes and have two categories: the open trench is added with water collecting well precipitation and well point precipitation, and the well point precipitation is divided into light well point precipitation, jet well point precipitation, deep well point precipitation and pipe well point precipitation. The open trench and the water collecting well can discharge surface water, and the method has the characteristics of low manufacturing cost, quick construction and the like, but cannot reduce the water level. The well point precipitation is selected from different types according to different address conditions and requirements, and the well point precipitation has advantages and disadvantages. The tube well point precipitation is suitable for strata with abundant underground water, has the characteristics of large displacement, large depth, wide range and the like, but needs independent approach mechanical equipment and professional constructors, and has large maintenance workload. Light well point precipitation needs the professional to carry out construction management, and every layer of earthwork excavation all needs to be torn open moreover, and work load is big, long time, influences the construction progress.
The current steel reinforcement cage precipitation well is one kind of artifical precipitation, and the precipitation device filter effect that traditional steel reinforcement cage precipitation well was used is not good, and groundwater filters the easy water pump that gets into of debris that can not fall, damages the water pump and reduces precipitation effect, influences work efficiency. Therefore, the foundation pit drilling steel reinforcement cage dewatering well which can discharge underground water, improve the filtering effect of the device and improve the working efficiency is a problem that needs to be solved urgently by technical personnel in the field.
Disclosure of Invention
In view of the above, the utility model provides a foundation pit drilling steel reinforcement cage dewatering well for draining underground water, which improves the filtering effect of the device and the working efficiency by utilizing a construction site supporting structure or a rotary drilling rig of a pile foundation construction machine to carry out construction of the dewatering well.
A foundation pit drilling steel reinforcement cage dewatering well is characterized in that a dewatering pit is formed in the earth excavation ground, and comprises a steel reinforcement cage, a composite filter screen, a sewage pump, a drain pipe and a stone filter material;
the steel reinforcement cage is arranged in the precipitation pit, the outer ring of the steel reinforcement cage wraps the composite filter screen, the composite filter screen comprises two layers of close mesh type safety nets and one layer of geotextile, the one layer of geotextile is clamped between the two layers of close mesh type safety nets, and the stone filter material is filled between the outer wall of the steel reinforcement cage and the inner wall of the precipitation pit;
the sewage pump is positioned in the reinforcement cage, and a water outlet of the sewage pump is movably connected with the water discharge pipe through a hoop.
Furthermore, construction of the dewatering well is performed by utilizing the construction site supporting structure or the pile foundation construction machinery rotary drilling machine, so that the effects of reducing professional equipment, reducing maintenance work and accelerating construction progress can be achieved.
Further, with the steel reinforcement welding steel reinforcement cage, save the weldment work of steel pipe and steel reinforcement cage, the steel reinforcement cage is convenient for cut among the excavation process, can play and reduce professional equipment, reduces the maintenance work for the effect of construction progress.
Furthermore, after the steel reinforcement cage is lifted, a pebble filter material is backfilled between the outer wall of the steel reinforcement cage and the inner wall of the precipitation pit, and the pebble filter material plays a role in primary filtering of underground water.
Further, be in behind the reinforcement cage ligature shaping reinforcement cage outside parcel compound filter screen, compound filter screen adopts the middle geotechnological cloth that presss from both sides of two-layer close mesh formula safety net, plays secondary filter's effect to groundwater.
Furthermore, groundwater after secondary filtration enters the steel reinforcement cage, the sewage pump can be effectively prevented from being damaged, the precipitation effect is further reduced, and drainage of the sewage pump is influenced.
Furthermore, the underground water around the dewatering pit enters the reinforcement cage after being filtered by the stone filter material and the composite filter screen under the action of water pressure, and then is pumped into the drainage ditch by the sewage pump, so that the effect of reducing the underground water is achieved.
Optionally, the stone filter material comprises bedding stones and side wall stones, the bedding stones are located between the bottom of the steel reinforcement cage and the bottom of the precipitation pit, and the side wall stones are located between the side walls of the steel reinforcement cage and the side walls of the precipitation pit.
Preferably, the ball float valve is positioned in the reinforcement cage, and the ball float valve is connected with a switch of the sewage pump.
Furthermore, the float valve is connected with the switch of the sewage pump in the morning, the float valve adjusts the opening of the sewage pump through the liquid level, when the liquid level in the reinforcement cage rises to a certain degree, the float valve floats along with the water level, and the sewage pump can drive the switch to automatically open through the float valve; when the liquid level descends to a certain degree in the steel reinforcement cage, the ball float valve descends, the sewage pump can be through the decline switch self-closing of ball float valve, can solve the problem that reduces the water level elevation.
The drain pipe is a PVC plastic-coated soft drain pipe.
Use PVC plastic-coated soft drain pipe pass through the clamp with sewage pump outlet swing joint uses PVC plastic-coated soft drain pipe, convenient site operation, and water pump drain pipe does not hinder major structure, foundation construction.
The laying thickness of the bedding stones is 500 mm.
Preferably, the laying thickness of the bedding stones is 500mm, so that sewage in the reinforcement cage is prevented from flowing back.
The utility model provides a foundation pit drilling steel reinforcement cage dewatering well, which solves the problems of dewatering and draining underground water, improving the filtering effect of a device and improving the working efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic view of a foundation pit drilling steel reinforcement cage dewatering well according to the present invention;
in the figure 1, 1 is the earth excavation ground; 2 is a reinforcement cage; 3 is a composite filter screen; 4 is a bedding stone; 5 is a lateral wall stone; 6 is a sewage pump; 7 is a ball float valve; 8 is a drain pipe; 9 is a precipitation pit; 10 is a stone filter material.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the embodiment discloses a foundation pit drilling steel reinforcement cage dewatering well, wherein a dewatering pit 9 is formed on an earth excavation ground 1 and comprises a steel reinforcement cage 2, a composite filter screen 3, a sewage pump 6, a drain pipe 8 and a stone filter material 10;
in the embodiment, the reinforcement cage 2 is arranged in the precipitation pit 9, the outer ring of the reinforcement cage 2 wraps the composite filter screen 3, the composite filter screen 3 comprises two layers of close mesh type safety nets and one layer of geotextile, the one layer of geotextile is clamped between the two layers of close mesh type safety nets, and a stone filter material 10 is filled between the outer wall of the reinforcement cage 2 and the inner wall of the precipitation pit 9;
in this embodiment, the sewage pump 6 is located in the steel reinforcement cage 2, and the drain outlet of the sewage pump 6 is movably connected with the drain pipe 8 through a clamp.
In this embodiment, utilize building site supporting construction or pile foundation construction machinery to dig the drilling machine soon and carry out the construction of precipitation well, can play and reduce professional equipment, reduce the maintenance work for the effect of construction progress.
In this embodiment, with the steel reinforcement welding steel reinforcement cage 2 saves the weldment work of steel pipe and steel reinforcement cage, and the cutting of being convenient for of excavation in-process steel reinforcement cage can play and reduce professional equipment, reduces the maintenance work for the effect of construction progress.
In this embodiment, after steel reinforcement cage 2 hoisted and put, backfilled the stone filter material between 2 outer walls of steel reinforcement cage and 9 inner walls of precipitation pit, the stone filter material played prefilter's effect to groundwater.
In this embodiment, 2 ligature shaping backs at 2 outsides parcel composite filter screen 3 of steel reinforcement cage, and composite filter screen 3 adopts the middle geotechnological cloth that presss from both sides of two-layer close mesh formula safety net, plays secondary filter's effect to groundwater.
In this embodiment, groundwater through secondary filter gets into the steel reinforcement cage, can effectively prevent to damage sewage pump 6 and reduce the precipitation effect, influences the 6 drainage of sewage pump.
When the device is used, construction of a dewatering well is carried out by utilizing a construction site supporting structure or a rotary drilling machine of a pile foundation construction machine, a dewatering pit 9 is formed in an earth excavation ground 1, then a reinforcement cage 2 is welded by using a steel bar, a composite filter screen 3 is wrapped on the outer ring of the reinforcement cage 2, geotextile is clamped between two layers of dense mesh type safety nets of the composite filter screen 3, after the reinforcement cage 2 is completely hoisted, a stone filter layer is filled between the outer wall of the reinforcement cage 2 and the inner wall of the dewatering pit 9, and a drainage pipe 8 is connected with a sewage pump 6 for drainage.
In this embodiment, the pebble filter material 10 comprises bedding pebbles 4 and side wall pebbles 5, the bedding pebbles 4 are located between the bottom of the steel reinforcement cage 2 and the bottom of the precipitation pit 9, and the side wall pebbles 5 are located between the side wall of the steel reinforcement cage 2 and the side wall of the precipitation pit 9.
In this embodiment, the ball float valve 7 is located in the reinforcement cage 2, and the ball float valve 7 is connected with the switch of the sewage pump 6.
The float valve 7 is connected with a switch of the sewage pump 6, the float valve adjusts the on-off of the sewage pump 6 through the liquid level, and when the liquid level in the reinforcement cage rises to a certain degree, the sewage pump 6 can be automatically started through the switch; when the liquid level drops to a certain degree in the steel reinforcement cage, the sewage pump 6 can be automatically closed through a switch, and the problem of reducing the water level elevation can be solved.
In this embodiment, the drain pipe 8 is a PVC plastic-coated soft drain pipe.
In this embodiment, pass through clamp and sewage pump outlet swing joint with PVC plastic-coated soft drain pipe, use PVC plastic-coated soft drain pipe, convenient site operation, water pump drain pipe does not hinder major structure, foundation construction.
In this embodiment, the laying thickness of the underlay stones is 500 mm.
When the device is used, the bedding stones are laid to be 500mm thick, and the stone filter layers are arranged between the side walls of the reinforcement cage 2 and the precipitation pit 9 and between the side walls and the bottom of the precipitation pit 9, so that underground water around the precipitation pit 9 can be guaranteed to pass through the stone filter layers when entering the reinforcement cage under the action of water pressure, sewage can be effectively preliminarily filtered, and the phenomenon that sundries enter a sewage pump to cause damage to the sewage pump and reduce the precipitation effect, and the working efficiency is influenced is avoided.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present embodiments. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the embodiments. Thus, the present embodiments are not intended to be limited to the embodiments shown herein but are to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A foundation pit drilling steel reinforcement cage dewatering well is characterized in that a dewatering pit (9) is formed in an earth excavation ground (1), and the dewatering well comprises a steel reinforcement cage (2), a composite filter screen (3), a sewage pump (6), a drain pipe (8) and a stone filter material (10);
the reinforcement cage (2) is arranged in the water-lowering pit (9), the composite filter screen (3) is wrapped by the outer ring of the reinforcement cage (2), the composite filter screen (3) comprises two layers of close mesh safety nets and one layer of geotextile, the one layer of geotextile is clamped between the two layers of close mesh safety nets, and the stone filter material (10) is filled between the outer wall of the reinforcement cage (2) and the inner wall of the water-lowering pit (9);
the sewage pump (6) is positioned in the reinforcement cage (2), and a water outlet of the sewage pump (6) is movably connected with the water outlet pipe (8) through a clamp.
2. The foundation pit drilling reinforcement cage dewatering well as claimed in claim 1, wherein the gravel filter material (10) comprises bedding stones (4) and side wall stones (5), the bedding stones (4) are located between the bottom of the reinforcement cage (2) and the bottom of the dewatering pit (9), and the side wall stones (5) are located between the side wall of the reinforcement cage (2) and the side wall of the dewatering pit (9).
3. The foundation pit drilling reinforcement cage dewatering well according to claim 1, characterized in that a ball float valve (7) is located in the reinforcement cage (2), the ball float valve (7) being connected to a switch of the sewage pump (6).
4. The foundation pit drilling steel reinforcement cage dewatering well as defined in claim 1, wherein the drain pipe (8) is a PVC plastic coated hose.
5. The foundation pit drilling reinforcement cage dewatering well as defined in claim 1, wherein the bedding stones (4) are laid to a thickness of 500 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122191315.7U CN215857808U (en) | 2021-09-10 | 2021-09-10 | Foundation ditch drilling steel reinforcement cage precipitation well |
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| CN202122191315.7U CN215857808U (en) | 2021-09-10 | 2021-09-10 | Foundation ditch drilling steel reinforcement cage precipitation well |
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| CN215857808U true CN215857808U (en) | 2022-02-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115094930A (en) * | 2022-07-19 | 2022-09-23 | 中铁十一局集团有限公司 | Auxiliary dewatering device and method for basement sump pit or elevator foundation pit |
| CN115492143A (en) * | 2022-09-27 | 2022-12-20 | 同济大学建筑设计研究院(集团)有限公司 | Confined water drainage system and construction method thereof |
| CN115627785A (en) * | 2022-12-02 | 2023-01-20 | 中交第一航务工程局有限公司 | Precipitation well rapid well-forming precipitation device and construction method thereof |
-
2021
- 2021-09-10 CN CN202122191315.7U patent/CN215857808U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115094930A (en) * | 2022-07-19 | 2022-09-23 | 中铁十一局集团有限公司 | Auxiliary dewatering device and method for basement sump pit or elevator foundation pit |
| CN115492143A (en) * | 2022-09-27 | 2022-12-20 | 同济大学建筑设计研究院(集团)有限公司 | Confined water drainage system and construction method thereof |
| CN115627785A (en) * | 2022-12-02 | 2023-01-20 | 中交第一航务工程局有限公司 | Precipitation well rapid well-forming precipitation device and construction method thereof |
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