CN215053140U - Steel reinforcement cage precipitation well - Google Patents
Steel reinforcement cage precipitation well Download PDFInfo
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- CN215053140U CN215053140U CN202120411411.5U CN202120411411U CN215053140U CN 215053140 U CN215053140 U CN 215053140U CN 202120411411 U CN202120411411 U CN 202120411411U CN 215053140 U CN215053140 U CN 215053140U
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Abstract
The utility model provides a reinforcement cage dewatering well, which comprises a reinforcement cage, a top cover, a bottom plate and a well body; the steel reinforcement cage is vertically arranged in the well body, the top end of the steel reinforcement cage extends out of the ground, and a first water filtering layer is filled between the outer wall of the steel reinforcement cage and the well body; one end of the steel reinforcement cage extending out of the ground is provided with a water stopping platform with a trapezoidal longitudinal section, the water stopping platform is circumferentially arranged along the outer wall of the steel reinforcement cage, and the height of the water stopping platform is the same as the height of the steel reinforcement cage extending out of the ground; the top cover is arranged at an opening at the top end of the reinforcement cage; the bottom plate welds in the bottommost of steel reinforcement cage, is provided with the second drainage layer between bottom plate outer wall and the well body. The steel reinforcement cage dewatering well has excellent filterability and permeability to underground water, greatly reduces the discharge amount of earthwork sludge, and reduces the influence on the environment; the reinforcement cage dewatering well is suitable for various soil layers, has obvious dewatering effect, effectively improves the later work efficiency, and saves workers, machinery and materials.
Description
Technical Field
The utility model belongs to the technical field of foundation ditch precipitation engineering, concretely relates to steel reinforcement cage precipitation well.
Background
With the development of urban construction, high-rise buildings, civil air defense and subway are in large numbers, and in the engineering construction technology, precipitation well engineering is a method for reducing the groundwater level for excavation of foundation pits, so that construction is facilitated. The necessary conditions for excavation of the foundation pit are to keep the foundation pit dry and filled, create an environment beneficial to construction, and before the foundation pit is constructed, the stratum structure, the rock-soil property, the aquifer property, the underground water level, the permeability coefficient and the like in a certain depth range from the building site and the periphery, the earth surface to the bottom surface of the supporting structure are known.
Excavation deep basal pit in the higher area of groundwater level, because the aquifer is cut off, under the pressure differential effect, groundwater can be seepage flow into the foundation ditch constantly, if when touchhing rainy season again, not only need pay attention to the problem of groundwater seepage flow, still will get rid of the ground rainwater and flow back into the foundation ditch, the infiltration of rainy season water makes soil body intensity reduce, the foundation bearing capacity descends, site operation condition worsens, still may arouse under the water pressure effect that the phenomenon of quicksand, piping and slope unstability, in order to ensure foundation ditch construction safety, must take effectual precipitation and drainage measure. Adopt steel pipe precipitation well to be used for precipitation among the prior art, steel pipe precipitation well sets up the hole that the aperture is 20mm on the steel sheet of steel pipe well, be 150mm at hoop and longitudinal separation between two adjacent holes, then wrap up three-layer nylon net in the steel pipe outside, when being suitable for rainy season, and under the condition that construction bottom groundwater content is abundant considerably, the bore of steel pipe precipitation well, the depth degree is difficult for adjusting, the hole diameter of setting up is less and quantity is less, groundwater can not permeate the steel pipe completely, influence precipitation effect, influence efficiency of construction and resource waste.
Therefore, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The utility model aims at providing a steel reinforcement cage precipitation well for overcome among the above-mentioned prior art the relatively poor and not obvious problem of precipitation effect of filterability and the infiltration type of steel pipe precipitation well to groundwater.
In order to achieve the above object, the present invention provides the following technical solutions:
a steel reinforcement cage dewatering well comprises a steel reinforcement cage, a top cover, a bottom plate and a well body;
the reinforcement cage is vertically arranged in the well body, the top end of the reinforcement cage extends out of the ground, and a first water filtering layer is filled between the outer wall of the reinforcement cage and the well body; one end, extending out of the ground, of the steel reinforcement cage is provided with a water stopping table with a trapezoidal longitudinal section, the water stopping table is arranged along the circumferential direction of the outer wall of the steel reinforcement cage, the side surface of the water stopping table is a flow guide surface, and the height of the water stopping table is the same as the height of the steel reinforcement cage extending out of the ground;
the top cover is arranged at an opening at the top end of the steel reinforcement cage, the diameter of the top cover is larger than that of the upper end face of the water stopping table, and the top cover is detachably fixed on the water stopping table through bolts;
the bottom plate weld in the bottommost of steel reinforcement cage, be provided with the second drainage layer between bottom plate outer wall and the well body, the second drainage layer adopts the rubble or the gravel backfill of particle size 10 ~ 25mm to form in the bottom plate outside.
According to the reinforcement cage dewatering well, as a preferable scheme, the reinforcement cage comprises a reinforcement cage main body and a filtering assembly, wherein the reinforcement cage main body comprises an inner stiffening hoop and a main rib;
the inner stiffening hoops are arranged in parallel at equal intervals along the height direction, and the interval between every two inner stiffening hoops is 2200-2400 mm;
the main ribs are uniformly welded into a cage shape along the circumferential direction of the outer side of the inner stiffening hoop;
the filter assembly is circumferentially arranged on the outer side of the steel reinforcement cage main body.
According to the reinforcement cage dewatering well, as a preferable scheme, the filtering component comprises an iron wire net layer and a nylon gauze layer, the iron wire net layer is formed by wrapping and binding an iron wire net on the outer side of the reinforcement cage main body, and the nylon gauze layer is bound on the outer side of the iron wire net layer.
As an optimal scheme, the steel reinforcement cage dewatering well is provided with 8-12 main reinforcements, and the main reinforcements are deformed steel bars with the nominal diameter of 20-25 mm.
The reinforcement cage dewatering well as the above mentioned is preferably made of the deformed steel bar with the diameter of 20 mm.
According to the reinforcement cage dewatering well, the mesh of the iron wire mesh layer is a square hole of 5-8 cm as a preferable scheme.
According to the reinforcement cage dewatering well, as a preferable scheme, the nylon gauze layer is a dense mesh net with meshes of 60-80 meshes.
According to the reinforcement cage dewatering well, as a preferable scheme, the first water filtering layer is a structure formed by filling crushed stones or gravels with the particle size of 10-25 mm on the outer side of the reinforcement cage, and the thickness of the first water filtering layer is 80-120 mm.
As an optimal scheme, the water stopping platform is formed by pouring concrete along the circumferential direction of the outer wall of the steel reinforcement cage.
As an optimal scheme, the bottom plate is made of steel plates, the diameter of the bottom plate is larger than or equal to the outer diameter of the steel reinforcement cage body, and the thickness of the bottom plate is 4-8 mm.
Compared with the closest prior art, the utility model provides a technical scheme has following excellent effect:
the diameter of the steel reinforcement cage dewatering well in the utility model is changed by changing the diameter of the inner stiffening hoops; through changing the degree of depth that highly changes steel reinforcement cage precipitation well of arranging of interior stiffening hoop, the water yield is big and the precipitation is big, puts into the steel reinforcement cage main part with the immersible pump after this steel reinforcement cage precipitation well construction is accomplished, during the groundwater receives the water pressure effect around the steel reinforcement cage precipitation well filters the entering steel reinforcement cage main part through first drainage layer and filter assembly, then by the immersible pump with groundwater suction escape canal to reach the effect that reduces groundwater, put into the immersible pump and can use, it is nimble convenient.
The utility model provides a steel reinforcement cage precipitation well is provided with top cap, stagnant water platform and bottom plate, and the setting of top cap and stagnant water platform prevents in the rainwater runoff flow inflow precipitation well on ground, and can follow the side of stagnant water platform with the rainwater give the water conservancy diversion around to, and the setting of bottom plate has increased the area of contact of steel reinforcement cage bottom surface with the well body, plays the effect of bearing to the steel reinforcement cage simultaneously.
The steel reinforcement cage dewatering well has excellent filterability and permeability to underground water, greatly reduces the discharge amount of earthwork sludge, and reduces the influence on the environment; in addition, the steel reinforcement cage dewatering well is suitable for various soil layers, has obvious dewatering effect, effectively improves the later work efficiency, and saves workers, machinery and materials.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. Wherein:
FIG. 1 is a schematic structural view of a reinforcement cage dewatering well according to an embodiment of the present invention;
fig. 2 is a top view of the reinforcement cage according to an embodiment of the present invention.
In the figure: 1. a well body; 2. a reinforcement cage body; 21. a main rib; 22. an inner stiffening hoop; 3. a layer of wire mesh; 4. a nylon gauze layer; 5. a first filtered water layer; 6. a second filtered water layer; 7. a base plate; 8. a water stop table; 9. and a top cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
In the description of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and do not require that the present invention must be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense, and may be, for example, either fixed or detachable; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The diameter of the steel reinforcement cage dewatering well in the utility model is changed by changing the diameter of the inner stiffening hoops 22; the depth of the reinforcement cage dewatering well is changed by changing the arrangement height of the inner stiffening hoops 22, the water yield is large, the precipitation amount is large, the submersible pump is placed into the reinforcement cage main body 2 after the construction of the reinforcement cage dewatering well is completed, the underground water around the reinforcement cage dewatering well is filtered by the first water filtering layer 5 and the filtering component under the action of water pressure and enters the reinforcement cage main body 2, and then the underground water is pumped into the drainage ditch by the submersible pump, so that the effect of reducing the underground water is achieved, the submersible pump can be used after being placed, and the use is flexible and convenient; in addition, steel reinforcement cage precipitation well is provided with top cap 9, stagnant water platform 8 and bottom plate 7, and the rainwater runoff that sets up on top cap 9 and stagnant water platform 8 prevents ground flows in the precipitation well, and can give the water conservancy diversion with the rainwater from the side of stagnant water platform 8 all around, and the setting of bottom plate 7 has increased the area of contact of steel reinforcement cage bottom surface with the well body 1, plays the effect of bearing to the steel reinforcement cage simultaneously.
As shown in figures 1-2, the utility model provides a steel reinforcement cage precipitation well, this precipitation well includes steel reinforcement cage, top cap 9, bottom plate 7 and well body 1.
The steel reinforcement cage is vertically arranged in the well body 1, the top end of the steel reinforcement cage extends out of the ground, a first water filtering layer 5 is filled between the outer wall of the steel reinforcement cage and the well body 1, and the first water filtering layer 5 is used for preventing silt in underground water from losing, namely preventing the silt in the underground water from flowing into the steel reinforcement cage main body 2; the one end that the steel reinforcement cage stretches out ground is provided with the stagnant water platform 8 that the longitudinal section is trapezoidal form, and stagnant water platform 8 sets up along the outer wall circumference of steel reinforcement cage, and the side of stagnant water platform 8 is the water conservancy diversion face, and the height that the height of stagnant water platform 8 and steel reinforcement cage stretch out ground is the same for the water of water conservancy diversion ground top.
In the specific embodiment of the utility model, the reinforcement cage comprises a reinforcement cage main body 2 and a filter assembly, the reinforcement cage main body 2 comprises an inner stiffening hoop 22 and a main reinforcement 21; the plurality of internal stiffening hoops 22 are arranged in parallel at equal intervals along the height direction, and the interval between every two internal stiffening hoops 22 is 2200-2400 mm; a plurality of main ribs 21 are arranged, and the main ribs 21 are uniformly welded into a cage shape along the circumferential direction of the outer side of the inner stiffening hoop; the filter assembly is circumferentially arranged on the outer side of the steel reinforcement cage main body 2. The inner stiffening hoops 22 are mainly used for fixing the stressed main reinforcements 21 and are connected with the stressed main reinforcements 21 to form a steel reinforcement framework, so that a steel reinforcement cage needs to be manufactured according to the requirements in actual engineering in the construction process, and then the steel reinforcement cage is hoisted into the well body 1.
In the embodiment of the present invention, the main rib 21 is provided with 8 to 12 (for example, 8, 9, 10, 11, 12) main ribs 21, and the main rib 21 is a deformed steel bar with a nominal diameter of 20mm to 25mm (for example, 20mm, 22mm, 25 mm).
In the embodiment of the present invention, the internal stiffening hoops 22 are arranged in parallel along the height direction at equal intervals, and the interval between every two internal stiffening hoops 22 is 1600 mm-2400 mm (for example 1600mm, 1800mm, 2000mm, 2200mm, 2400 mm).
In the embodiment of the present invention, the inner stiffening band 22 is made of deformed steel with a diameter of 20 mm.
In practical application, when the underground water content is quite rich, the common steel pipe precipitation well is changed into a full-penetration type steel reinforcement cage precipitation well from 20mm in aperture and 150mm in interval, the number of holes and the aperture are increased, and the filterability and the permeability of precipitation are greatly increased for the steel reinforcement cage precipitation well.
The utility model discloses in the embodiment, filtering component includes wire net layer 3 and nylon gauze layer 4, and wire net layer 3 forms in the outside of steel reinforcement cage main part for wire net parcel and ligature, nylon gauze layer 4 ligature in the outside of wire net layer. Due to the combined action of the iron wire mesh layer 3 and the nylon gauze layer 4, the first water filtering layer 5 material and the silt in the well body 1 are ensured not to flow into the steel reinforcement cage main body 2.
In the embodiment of the present invention, the meshes of the wire layer 3 are square holes of 5-8 cm (e.g. 5.0cm, 6.0cm, 7.0cm, 8.0 cm).
In the embodiment of the present invention, the nylon gauze layer 4 is a dense mesh net with 60-80 mesh (for example, 60 mesh, 65 mesh, 70 mesh) mesh.
The utility model discloses in the embodiment, first drainage layer 5 is for adopting the particle diameter to fill the structure that forms in the steel reinforcement cage outside for 10 ~ 25mm (for example 10 ~ 15mm, 10 ~ 20mm, 15 ~ 20mm) rubble or gravel, and the thickness of first drainage layer 5 is 80 ~ 120mm (for example 80mm, 90mm, 100mm, 110mm, 120 mm).
In a specific embodiment, the diameter of the reinforcement cage is 600mm, the diameter of the well body 1 is 800mm, and the distance between the outer wall of the reinforcement cage and the well body 1 is 100mm, that is, the thickness of the first water filtering layer 5 is 100 mm.
The utility model discloses in the embodiment, stagnant water platform 8 is poured along steel reinforcement cage outer wall circumference for the concrete and forms.
Top cap 9 sets up in the opening part on steel reinforcement cage top, and the diameter of top cap 9 is greater than the diameter of stagnant water platform 8 up end, is fixed in stagnant water platform 8 with top cap 9 detachably through the bolt on.
The bottom plate 7 welds in the bottommost of steel reinforcement cage, is provided with second drainage layer 6 between 7 outer walls of bottom plate and the well body 1, and second drainage layer 6 is for adopting the particle size to be 10 ~ 25mm (for example 10 ~ 15mm, 10 ~ 20mm, 15 ~ 20mm) rubble or gravel backfill form in the bottom plate 7 outside.
The bottom plate 7 is the steel sheet material, the diameter more than or equal to of bottom plate 7 the external diameter of steel reinforcement cage main part 2, just the thickness of bottom plate 7 is 4 ~ 8 mm.
For better understanding the utility model provides a steel reinforcement cage precipitation well, steel reinforcement cage precipitation well's construction steps specifically do: leveling a field, measuring and lofting, embedding a protective cylinder, positioning a drilling machine, forming holes, cleaning the holes, manufacturing and installing a reinforcement cage, filling filler of a water filtering layer, washing a well, submerging a water pump and pumping water.
To sum up, the aperture and the depth of the steel reinforcement cage dewatering well of the utility model can be adjusted according to actual conditions, the submersible pump is put into the steel reinforcement cage main body after construction is completed, the groundwater around the steel reinforcement cage dewatering well is filtered by the first water filtering layer 5 and the filtering component to enter the steel reinforcement cage main body, and then the submersible pump pumps the groundwater into the drainage ditch, so that the effect of reducing the groundwater is achieved, the submersible pump can be used after being put into the water reinforcement cage dewatering well, and the operation is flexible and convenient; the arrangement of the top cover 9 and the water stop table 8 on the upper part of the reinforcement cage prevents rainwater runoff on the ground from flowing into a precipitation well, rainwater can be guided to the periphery from the side surface of the water stop table 8, the arrangement of the bottom plate 7 on the bottom of the reinforcement cage increases the contact area between the bottom surface of the reinforcement cage and the well body 1, and the reinforcement cage is supported; and because the water yield of the reinforcement cage dewatering well is large, the filtration and permeability of underground water are good, the emission of earthwork sludge is greatly reduced, the influence on the environment is reduced, the dewatering effect is obvious, and the later-stage work efficiency is effectively improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the following claims are intended to cover all modifications, equivalents, and improvements falling within the spirit and principles of the present invention.
Claims (10)
1. The reinforcement cage dewatering well is characterized by comprising a reinforcement cage, a top cover, a bottom plate and a well body;
the reinforcement cage is vertically arranged in the well body, the top end of the reinforcement cage extends out of the ground, and a first water filtering layer is filled between the outer wall of the reinforcement cage and the well body; one end, extending out of the ground, of the steel reinforcement cage is provided with a water stopping table with a trapezoidal longitudinal section, the water stopping table is arranged along the circumferential direction of the outer wall of the steel reinforcement cage, the side surface of the water stopping table is a flow guide surface, and the height of the water stopping table is the same as the height of the steel reinforcement cage extending out of the ground;
the top cover is arranged at an opening at the top end of the steel reinforcement cage, the diameter of the top cover is larger than that of the upper end face of the water stopping table, and the top cover is detachably fixed on the water stopping table through bolts;
the bottom plate weld in the bottommost of steel reinforcement cage, be provided with the second drainage layer between bottom plate outer wall and the well body, the second drainage layer adopts the rubble or the gravel backfill of particle size 10 ~ 25mm to form in the bottom plate outside.
2. The reinforcement cage dewatering well of claim 1, wherein the reinforcement cage comprises a reinforcement cage body and a filter assembly, the reinforcement cage body comprising an inner stiffening hoop and a main reinforcement;
the inner stiffening hoops are arranged in parallel at equal intervals along the height direction, and the interval between every two inner stiffening hoops is 2200-2400 mm;
the main ribs are uniformly welded into a cage shape along the circumferential direction of the outer side of the inner stiffening hoop;
the filter assembly is circumferentially arranged on the outer side of the steel reinforcement cage main body.
3. The reinforcement cage dewatering well as claimed in claim 2, wherein the filter assembly comprises an iron wire mesh layer and a nylon gauze layer, the iron wire mesh layer is formed by wrapping and binding an iron wire mesh on the outer side of the reinforcement cage body, and the nylon gauze layer is bound on the outer side of the iron wire mesh layer.
4. The reinforcement cage dewatering well as claimed in claim 2, wherein there are 8-12 main reinforcements, and the main reinforcements are deformed steel bars with nominal diameter of 20-25 mm.
5. The reinforcement cage dewatering well of claim 2, wherein the inner stiffening hoops are made of deformed steel with a diameter of 20 mm.
6. The reinforcement cage dewatering well as claimed in claim 3, wherein the mesh of the wire mesh layer is a square hole of 5-8 cm.
7. The reinforcement cage dewatering well as claimed in claim 3, wherein the nylon gauze layer is a dense mesh net with 60-80 mesh.
8. The reinforcement cage dewatering well as claimed in claim 1, wherein the first water drainage layer is formed by filling crushed stones or gravels with a particle size of 10-25 mm on the outer side of the reinforcement cage, and the thickness of the first water drainage layer is 80-120 mm.
9. The reinforcement cage dewatering well of claim 1, wherein the water stopping platform is formed by pouring concrete along the circumferential direction of the outer wall of the reinforcement cage.
10. The reinforcement cage dewatering well as claimed in claim 1, wherein the bottom plate is made of steel plate, the diameter of the bottom plate is greater than or equal to the outer diameter of the reinforcement cage body, and the thickness of the bottom plate is 4-8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120411411.5U CN215053140U (en) | 2021-02-24 | 2021-02-24 | Steel reinforcement cage precipitation well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120411411.5U CN215053140U (en) | 2021-02-24 | 2021-02-24 | Steel reinforcement cage precipitation well |
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| CN215053140U true CN215053140U (en) | 2021-12-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114351682A (en) * | 2021-12-24 | 2022-04-15 | 中冶天工集团有限公司 | Filtering drain pipe for retaining wall |
| 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
- 2021-02-24 CN CN202120411411.5U patent/CN215053140U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114351682A (en) * | 2021-12-24 | 2022-04-15 | 中冶天工集团有限公司 | Filtering drain pipe for retaining wall |
| 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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