CN205188934U - Ribbed precipitation well casing - Google Patents
Ribbed precipitation well casing Download PDFInfo
- Publication number
- CN205188934U CN205188934U CN201521005162.0U CN201521005162U CN205188934U CN 205188934 U CN205188934 U CN 205188934U CN 201521005162 U CN201521005162 U CN 201521005162U CN 205188934 U CN205188934 U CN 205188934U
- Authority
- CN
- China
- Prior art keywords
- floor
- filter
- well pipe
- filtration beds
- chimney filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000001556 precipitation Methods 0.000 title abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000004576 sand Substances 0.000 claims abstract description 16
- 238000001914 filtration Methods 0.000 claims description 49
- 239000012528 membrane Substances 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 4
- 230000035699 permeability Effects 0.000 abstract description 11
- 238000010276 construction Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 5
- 230000002045 lasting effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract 2
- 239000002689 soil Substances 0.000 description 9
- 239000000706 filtrate Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Filtration Of Liquid (AREA)
Abstract
The utility model discloses a ribbed precipitation well casing, its characterized in that the precipitation well casing is including the chimney filter that has the hole of permeating water, the chimney filter skin has wrapped up floor and filter layer in proper order. The utility model has the advantages that, precipitation well casing simple structure, construction convenience, having under the condition of sand filter blanket, lasting the water permeability that precipitation can not reduce the well casing, under the condition of no sand filter blanket, not only can reduce the filter material cost and the process of filling out the filter material, but also can improve the water permeability of well casing.
Description
Technical field
The utility model belongs to ground and field of environmental technology, is specifically related to a kind of downcast well pipe of ribbing.
Background technology
Usually, in base pit engineering or Polluted Soil in-situ immobilization process, often need first to treat construction area underground water and take to take out dewatering measure, namely arrange in foundation ditch or Polluted Soil process range and arrange precipitation well point more, extract a certain amount of underground water.
Traditional technology is evenly arranged permeable hole on plastic pipe or steel pipe tube wall, pipe periphery parcel filter screen, and between well casing and borehole wall heap sand filtering layer.In practice of construction process, the precipitation of taking out continued often causes sand filter blanket blocked by clay and reduce permeability, thus affects the efficiency of water outlet, brings very big inconvenience for continuing to take out dewatering construction.Owing to adding this procedure of sand filter blanket, the cost of construction also increases.
Summary of the invention
The purpose of this utility model is according to above-mentioned the deficiencies in the prior art part, provides a kind of downcast well pipe of ribbing, and this downcast well pipe passes through at chimney filter skin successively parcel net trellis floor and filtration beds, thus improves downcast well pipe water permeability.
The utility model object realizes being completed by following technical scheme:
A downcast well pipe for ribbing, is characterized in that described downcast well pipe comprises the chimney filter with permeable hole, and described chimney filter skin is enclosed with floor and filtration beds successively.
Described filtration beds is the combination of a kind of in filter membrane, filter screen, permeable cloth, sand pocket or at least two kinds.
Described floor is latticed floor.
The thickness of described floor is 1 ~ 5mm.
Grid in described latticed floor is polygon-shaped.
At the bottom of described chimney filter, mouth is provided with water filtering cap, described water filtering cap is enclosed with one deck filter membrane.
Described floor and filtration beds are structure as a whole.
The utility model has the advantages that, downcast well pipe structure is simple, easy construction; When there being sand filter blanket, lasting precipitation can not reduce the water permeability of well casing; When without sand filter blanket, not only can reduce filtrate cost and the operation of filling out filtrate, but also the water permeability of well casing can be improved.
Accompanying drawing explanation
Fig. 1 is downcast well pipe structural representation in the utility model.
Detailed description of the invention
Feature of the present utility model and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that the understanding of technician of the same trade:
Be respectively as marked 1-5 in Fig. 1, figure: chimney filter 1, permeable hole 2, latticed floor 3, filtration beds 4, water filtering cap 5.
Embodiment 1: as shown in Figure 1, the defect problem that precipitation will produce water permeability reduction is continued in order to solve existing downcast well pipe, present embodiments provide a kind of downcast well pipe of ribbing, the chimney filter 1 of main body made by an employing plastic pipe of this downcast well pipe, chimney filter 1 is evenly equipped with some permeable holes 2, a hoop net trellis floor 3 is enclosed with in the periphery of chimney filter 1, and be enclosed with one deck filtration beds 4 again in the periphery of latticed floor 3, filtration beds 4 can be one or more combinations in filter membrane, filter screen, permeable cloth, sand pocket, and in the present embodiment, filtration beds 4 specifically adopts filter membrane; Latticed floor 3 can prop up filtration beds 4 equably, and avoid filtration beds 4, with tube wall, directly contact occurs, filtration beds 4 then can stop the fine grained in soil to pass through, and to avoid stream soil; In order to increase water permeability, be also provided with at the end mouth of chimney filter 1 water filtering cap 5 that has permeable gap, the periphery of water filtering cap 5 is enclosed with one deck filtration beds 4.
As shown in Figure 1, latticed floor 3 along chimney filter 1 periphery full height scope parcel or the periphery along chimney filter 1 is helically wound around parcel, each grid in latticed floor 3 is hexagonal honeycomb shape or rectangular-shaped, floor can effectively increase its Area of bearing by adopting this type of grid-like arrangement, prevent filtration beds 4 from occurring directly to contact with chimney filter 1 tube wall, in addition, each grid independence adjacent distributions in latticed floor 3, can be used as permeable Route guiding soil mass water through filtering layer 4 laggard enter in grid, and flow in chimney filter 1 through the permeable hole 2 of contraposition, can avoid when not adopting floor or latticed floor, the problem of the downward seepage flow of water body.
As shown in Figure 1, the thickness of latticed floor 3 is between 1 ~ 5mm.If the thickness of latticed floor 3 is less than 1mm, then filtration beds 4 is too small with chimney filter 1 tube wall spacing, and filtration beds 4 easier same chimney filter 1 tube wall after extruding by the soil body contacts; If the thickness of latticed floor 3 is greater than 5mm, although filtration beds 4 can not produce contact with chimney filter 1 tube wall when extruding by the soil body, latticed floor 3 thickness crosses high cost also corresponding raising; Therefore the thickness of latticed floor 3 is between 1 ~ 5mm time, filtration beds 4 can be avoided to produce contact with chimney filter 1 tube wall, can reduce again the cost of floor.In addition, when the thickness of latticed floor 3 is between 1 ~ 5mm, the external diameter of filtration beds 4 can be increased, thus its drainage surface of corresponding increase amasss, to improve drainage efficiency.
As shown in Figure 1, before construction, successively latticed floor 3 and filtration beds 4 are wrapped in the periphery of chimney filter 1 on ground, and in the end mouth of chimney filter 1, water filtering cap 5 and filtration beds 4 are installed; Afterwards chimney filter 1 is placed in pore-forming, and inserts sand filter blanket, to have applied downcast well pipe in space between hole inwall and the filtration beds 4 of chimney filter 1.
It should be noted that, when arranging sand filter blanket, lasting precipitation can not reduce the water permeability of well casing.Certainly, in the present embodiment, when chimney filter 1 is being placed into after in pore-forming, also between sand filter blanket can be set, latticed floor 3 adds that filtration beds 4 also can play the effect of sand filter blanket, so not only can reduce the operation of filtrate cost and filling filtrate, and the water permeability of well casing can be improved.
Embodiment 2: the present embodiment is specifically related to a kind of downcast well pipe of ribbing, the chimney filter 1 of main body made by an employing plastic pipe of this downcast well pipe, chimney filter 1 is evenly equipped with some permeable holes 2, there is at the periphery of chimney filter 1 parcel one circle the filtration beds 4 of latticed floor 3, filtration beds 4 can be filter membrane, filter screen, permeable cloth, one in sand pocket, it should be noted that, Construction integration is adopted between latticed floor 3 and filtration beds 4, latticed floor 3 can prop up filtration beds 4 equably, avoid filtration beds 4, with tube wall, directly contact occurs, filtration beds 4 then can stop the fine grained in soil to pass through, to avoid stream soil, in order to increase water permeability, be also provided with at the end mouth of chimney filter 1 water filtering cap 5 that has permeable gap, the periphery of water filtering cap 5 is enclosed with one deck filtration beds 4.
As shown in Figure 1, before construction, on ground, the filtration beds 4 with latticed floor 3 is wrapped in the periphery of chimney filter 1, and in the end mouth of chimney filter 1, water filtering cap 5 and filtration beds 4 is installed; Afterwards chimney filter 1 is placed in pore-forming, and inserts sand filter blanket, to have applied downcast well pipe in space between hole inwall and the filtration beds 4 of chimney filter 1.
In the present embodiment, by adopting one-piece construction between latticed floor and filtration beds, the installation steps of downcast well pipe can be reduced, constructability.
Claims (7)
1. a downcast well pipe for ribbing, is characterized in that described downcast well pipe comprises the chimney filter with permeable hole, and described chimney filter skin is enclosed with floor and filtration beds successively.
2. the downcast well pipe of a kind of ribbing according to claim 1, is characterized in that described filtration beds is the combination of a kind of in filter membrane, filter screen, permeable cloth, sand pocket or at least two kinds.
3. the downcast well pipe of a kind of ribbing according to claim 1, is characterized in that described floor is latticed floor.
4. the downcast well pipe of a kind of ribbing according to claim 1 or 3, is characterized in that the thickness of described floor is 1 ~ 5mm.
5. the downcast well pipe of a kind of ribbing according to claim 3, is characterized in that the grid in described latticed floor is polygon-shaped.
6. the downcast well pipe of a kind of ribbing according to claim 1, is characterized in that at the bottom of described chimney filter, mouth is provided with water filtering cap, described water filtering cap is enclosed with one deck filter membrane.
7. the downcast well pipe of a kind of ribbing according to claim 1, is characterized in that described floor and filtration beds are structure as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521005162.0U CN205188934U (en) | 2015-11-27 | 2015-11-27 | Ribbed precipitation well casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521005162.0U CN205188934U (en) | 2015-11-27 | 2015-11-27 | Ribbed precipitation well casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205188934U true CN205188934U (en) | 2016-04-27 |
Family
ID=55781936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521005162.0U Active CN205188934U (en) | 2015-11-27 | 2015-11-27 | Ribbed precipitation well casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205188934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105350515A (en) * | 2015-11-27 | 2016-02-24 | 上海长凯岩土工程有限公司 | Ribbed dewatering well tube |
-
2015
- 2015-11-27 CN CN201521005162.0U patent/CN205188934U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105350515A (en) * | 2015-11-27 | 2016-02-24 | 上海长凯岩土工程有限公司 | Ribbed dewatering well tube |
| CN105350515B (en) * | 2015-11-27 | 2018-05-11 | 上海长凯岩土工程有限公司 | A kind of downcast well pipe of ribbing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 10F, New Development Building, No. 169 Gonghe Road, Zhabei District, Shanghai, 200070 Patentee after: SHANGHAI CHANGKAI GEOTECHNICAL ENGINEERING Co.,Ltd. Patentee after: SGIDI ENGINEERING CONSULTING (Group) Co.,Ltd. Address before: 10F, New Development Building, No. 169 Gonghe Road, Zhabei District, Shanghai, 200070 Patentee before: SHANGHAI CHANGKAI GEOTECHNICAL ENGINEERING Co.,Ltd. Patentee before: SHANGHAI GEOTECHNICAL INVESTIGATIONS & DESIGN INSTITUTE Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231020 Address after: 8th Floor, Shangkan Building, No. 38 Shuifeng Road, Yangpu District, Shanghai, 200093 Patentee after: SHANGHAI CHANGKAI GEOTECHNICAL ENGINEERING Co.,Ltd. Address before: 10F, New Development Building, No. 169 Gonghe Road, Zhabei District, Shanghai, 200070 Patentee before: SHANGHAI CHANGKAI GEOTECHNICAL ENGINEERING Co.,Ltd. Patentee before: SGIDI ENGINEERING CONSULTING (Group) Co.,Ltd. |