CN211395718U - Plugging device for dewatering well - Google Patents
Plugging device for dewatering well Download PDFInfo
- Publication number
- CN211395718U CN211395718U CN201921063035.4U CN201921063035U CN211395718U CN 211395718 U CN211395718 U CN 211395718U CN 201921063035 U CN201921063035 U CN 201921063035U CN 211395718 U CN211395718 U CN 211395718U
- Authority
- CN
- China
- Prior art keywords
- well
- pipe
- shut
- precipitation
- precipitation well
- 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.)
- Active
Links
Images
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model discloses a precipitation well plugging device, locate the outside well shut-in sleeve pipe of precipitation well pipe including the cover, well shut-in sheathed tube bottom is supported by the basement bottom plate, well shut-in sheathed tube top is higher than the top of precipitation well pipe, and well shut-in sheathed tube top fixedly connected with cover tube cover board, well shut-in sleeve pipe with be provided with the waterproof concrete that slightly expands between the precipitation well pipe. The utility model has the advantages that: the well can be sealed and formed at one time, the cost is saved, and secondary reworking is not carried out; the construction process is reduced, and the working efficiency is improved; the site is easy to arrange, the project progress is fast, and interference factors are few; the method is beneficial to civilized construction, can ensure that surrounding facilities are used perfectly, cannot influence other procedures of the basement due to plugging failure, and forms good economic benefit.
Description
Technical Field
The utility model relates to a precipitation well shutoff technical field particularly, relates to a precipitation well plugging device.
Background
The traditional plugging method of the precipitation well comprises the steps of mixing the concrete with plugging king, plugging agent, quick cement and the like after precipitation is stopped, putting the mixture into a precipitation well pipe, and because the water level rises quickly after precipitation is stopped and no water and gas sealing measures are taken, the plugging method is slow in construction speed, the success rate of primary plugging is low, and plugging failure is often caused.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned technical problem among the correlation technique, the utility model provides a precipitation well plugging device has advantages such as simple structure is practical, energy saving and operation safety.
In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:
the utility model provides a precipitation well plugging device, its characterized in that locates the outside well shut-in sleeve pipe of precipitation well casing including the cover, well shut-in sleeve pipe's bottom is supported by basement bottom plate, well shut-in sleeve pipe's top is higher than the top of precipitation well casing, and well shut-in sleeve pipe's top fixedly connected with sleeve apron, well shut-in sleeve pipe with be provided with little waterproof concrete that expands between the precipitation well casing.
Furthermore, two water stop rings are welded at the lower part of the well sealing sleeve.
Further, the well shut-in casing is made of a seamless steel pipe, the thickness of the seamless steel pipe is 8mm, and the diameter of the seamless steel pipe is 350 mm.
Further, the diameter of the precipitation well pipe is 250 mm.
Further, the pouring thickness of the micro-expansion waterproof concrete is 50mm, and the grade of the micro-expansion waterproof concrete is higher than that of the concrete of the basement bottom plate by one.
The utility model also discloses a precipitation well shutoff method, including following step:
s1, sleeving a well sealing sleeve outside the precipitation well pipe, wherein the bottom end of the well sealing sleeve is supported by a basement bottom plate, and the top end of the well sealing sleeve is higher than the top end of the precipitation well pipe;
s2 pouring micro-expansion waterproof concrete between the precipitation well pipe and the well shut-in sleeve;
s3, filling clay balls and rapid hardening cement in the dewatering well pipe for plugging;
s4, welding a well pipe cover plate on the top end of the precipitation well pipe;
s5, welding a sleeve cover plate at the top end of the well sealing sleeve.
Further, in S2, after the micro-expansion waterproof concrete is poured, two water stop rings are welded to the lower portion of the well sealing sleeve, and the waterproof layer of the basement bottom plate is turned up to the bottom of the water stop rings.
And further, adopting sealing plaster to carry out waterproof closing-in treatment between the waterproof layer and the water stop ring.
Further, in S3, the clay ball is filled in the precipitation well pipe, and when the clay ball to be filled is 1m lower than the top end of the precipitation well pipe, the quick-hardening cement is filled to the top end of the precipitation well pipe.
Further, in S1, the well shut-in casing is placed outside the precipitation well pipe by hoisting.
The utility model has the advantages that: the well can be sealed and formed at one time, the cost is saved, and secondary reworking is not carried out; the construction process is reduced, and the working efficiency is improved; the site is easy to arrange, the project progress is fast, and interference factors are few; the method is beneficial to civilized construction, can ensure that surrounding facilities are used perfectly, cannot influence other procedures of the basement due to plugging failure, and forms good economic benefit.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Figure 1 is according to the utility model discloses embodiment precipitation well plugging device's schematic diagram.
In the figure:
1. a precipitation well pipe; 2. sealing a well casing; 3. a water stop ring; 4. a well pipe cover plate; 5. a casing cover plate; 6. micro-expansion waterproof concrete; 7. quick hardening cement; 8. basement bottom plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, 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.
As shown in fig. 1, according to the utility model discloses a precipitation well plugging device, locate 1 outside well shut-in sleeve pipe 2 of precipitation well pipe including the cover, well shut-in sleeve pipe 2's bottom is supported by basement bottom plate 8, well shut-in sleeve pipe 2's top is higher than precipitation well pipe 1's top, and well shut-in sleeve pipe 2's top fixedly connected with sleeve apron 5, well shut-in sleeve pipe 2 with be provided with little waterproof concrete 6 that expands between the well casing precipitation 1.
In a specific embodiment of the present invention, two water stop rings 3 are welded to the lower portion of the well sealing casing 2.
In a specific embodiment of the utility model, the well-sealing sleeve 2 is made of seamless steel pipe, the thickness of seamless steel pipe is 8mm, and the diameter is 350 mm.
In a particular embodiment of the invention, the precipitation well pipe 1 has a diameter of 250 mm.
In a specific embodiment of the utility model, slightly expand waterproof concrete 6 pour thickness for 50mm, slightly expand waterproof concrete 6's reference numeral than basement bottom plate 8's concrete reference numeral is one higher.
The utility model also discloses a precipitation well shutoff method, including following step:
s1, sleeving the well shut-in sleeve 2 outside the precipitation well pipe 1, wherein the bottom end of the well shut-in sleeve 2 is supported by the basement bottom plate 8, and the top end of the well shut-in sleeve 2 is higher than the top end of the precipitation well pipe 1;
s2, pouring micro-expansion waterproof concrete 6 between the precipitation well pipe 1 and the well shut-in sleeve 2;
s3, filling clay balls and rapid hardening cement 7 in the precipitation well pipe 1 for plugging;
s4, welding a well casing cover plate 4 on the top end of the precipitation well casing 1;
s5, welding a casing cover plate 5 at the top end of the well sealing casing 2.
In a specific embodiment of the present invention, in S2, after the slightly-expanded waterproof concrete 6 is poured, the two water-stopping rings 3 are welded to the lower portion of the well-sealing sleeve 2, and the waterproof layer of the basement bottom plate 8 is turned up to the bottom of the water-stopping rings 3.
In a specific embodiment of the present invention, the sealing mastic is used to perform waterproof closing-up treatment between the waterproof layer and the water stop ring 3.
In a specific embodiment of the present invention, in S3, firstly, the clay ball is filled in the precipitation well pipe 1, and when the clay ball is lower than 1m on the top end of the precipitation well pipe 1, the rapid hardening cement 7 is filled in the precipitation well pipe 1.
In a specific embodiment of the present invention, in S1, the well shut-in casing 2 is placed outside the precipitation well casing 1 by hoisting.
For the convenience of understanding the above technical solutions of the present invention, the above technical solutions of the present invention will be described in detail through specific use modes.
Precipitation well plugging device, including shut-in well sleeve pipe 2, sleeve pipe apron 5, slightly expand waterproof concrete 6 etc..
The well shut-in casing 2 is made of a seamless steel pipe, the thickness of the seamless steel pipe is 8mm, and the diameter of the seamless steel pipe is 350 mm. And after being hoisted in place, the well shut-in casing 2 is placed outside the precipitation well pipe 1, and the diameter of the precipitation well pipe 1 is 250 mm. The bottom end of the well shut-in casing 2 is supported by the basement bottom plate 8, and the top end of the well shut-in casing 2 is slightly higher than the top end of the precipitation well pipe 1. And pouring micro-expansion waterproof concrete 6 which is higher than the concrete grade of the basement bottom plate 8 by one between the precipitation well pipe 1 and the well shut-in sleeve 2, wherein the pouring thickness is 50mm, and the pouring height is not more than the top end of the precipitation well pipe 1.
The inside of the precipitation well pipe 1 is plugged by clay balls and quick-hardening cement 7, and the quick-hardening cement 7 is filled in the area from the top end of the precipitation well pipe 1 to the position 1m below the top end of the precipitation well pipe 1 and used for strengthening the strength of the upper part of the precipitation well pipe 1.
And after plugging, adding a welded well pipe cover plate 4 on the top end of the precipitation well pipe 1, and adding a welded sleeve cover plate 5 on the top end of the well plugging sleeve 2.
If a plurality of precipitation well pipes 1 need to be plugged, plugging is carried out by adopting precipitation well plugging devices with the same number as the precipitation well pipes 1, wherein the lower part of the well plugging sleeve 2 with the lowest height is welded with two water stop rings 3, a waterproof layer of a basement bottom plate 8 is turned upwards to the bottom of the water stop rings 3, and waterproof closing-up treatment is carried out by adopting sealing clay.
During the specific construction; the well shut-in casing 2 is placed on the outer side of the precipitation well pipe 1 in a hoisting mode, so that the waterproof performance of the basement bottom plate 8 cannot be affected no matter how the precipitation well pipe 1 deforms; the waterproof layer of the basement bottom plate 8 is turned upwards to the bottom of the water stop ring 3, and waterproof closing-up treatment is carried out by adopting sealing plaster, so that the waterproof construction quality can be effectively ensured, and the construction of the basement bottom plate 8 is ensured; before plugging the precipitation well pipe 1, pouring a gap between the well plugging sleeve 2 and the precipitation well pipe 1 by adopting micro-expansive concrete 6 which is higher than a basement bottom plate 8 by a certain mark; thus, the precipitation well pipe 1 and the well shut-in casing 2 can be connected into a whole, a single precipitation well pipe 1 with the thickness of 6mm is changed into a double-steel-plate precipitation well shut-in cylinder body with the thickness of 64mm (the thickness of the precipitation well pipe 1 is 6mm, the thickness of micro-expansive concrete is 6mm (350 mm-250 mm)/2 =50mm, and the thickness of the well shut-in casing 2 is 8 mm), and thus, a reinforced well shut-in casing is formed; the well sealing sleeve 2 is tightly connected with the basement bottom plate 8, so that good waterproofness is formed; the well casing cover plate 4 is welded on the top end of the dewatering well casing 1, and the casing cover plate 5 is welded on the top end of the well shut-in casing 2, so that double insurance is formed, and the successful plugging of the dewatering well is effectively guaranteed.
In conclusion, by means of the technical scheme of the utility model, the equipment investment, the operation and maintenance times and the cost are reduced; the operation safety is improved; the flow stability in the extraction process of sulfuric acid is improved.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a precipitation well plugging device, its characterized in that locates precipitation well pipe (1) outside shut-in well sleeve pipe (2) including the cover, the bottom of shut-in well sleeve pipe (2) is supported by basement bottom plate (8), the top of shut-in well sleeve pipe (2) is higher than the top of precipitation well pipe (1), and the top fixedly connected with sleeve pipe apron (5) of shut-in well sleeve pipe (2), shut-in well sleeve pipe (2) with be provided with slightly swelling waterproof concrete (6) between precipitation well pipe (1).
2. Plugging device for dewatering wells according to claim 1, characterized in that two water stop rings (3) are welded to the lower part of the well shut-in casing (2).
3. Plugging device for dewatering wells according to claim 1, characterized in that the well shut-in casing (2) is made of seamless steel pipe with a thickness of 8mm and a diameter of 350 mm.
4. Plugging device for precipitation wells according to claim 3, wherein the diameter of the precipitation well pipe (1) is 250 mm.
5. Plugging device for dewatering wells according to claim 4, characterized in that the casting thickness of the micro-expansive waterproof concrete (6) is 50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921063035.4U CN211395718U (en) | 2019-07-09 | 2019-07-09 | Plugging device for dewatering well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921063035.4U CN211395718U (en) | 2019-07-09 | 2019-07-09 | Plugging device for dewatering well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211395718U true CN211395718U (en) | 2020-09-01 |
Family
ID=72221777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921063035.4U Active CN211395718U (en) | 2019-07-09 | 2019-07-09 | Plugging device for dewatering well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211395718U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387897A (en) * | 2019-07-09 | 2019-10-29 | 中铁城建集团北京工程有限公司 | A kind of plugging dewatering well device and plugging dewatering well method |
-
2019
- 2019-07-09 CN CN201921063035.4U patent/CN211395718U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387897A (en) * | 2019-07-09 | 2019-10-29 | 中铁城建集团北京工程有限公司 | A kind of plugging dewatering well device and plugging dewatering well method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107059903A (en) | Bottom plate plugging dewatering well construction method is worn in foundation ditch | |
| CN204000956U (en) | A kind of basement bottom plate rear pouring tape structure | |
| CN108166517B (en) | Well sealing method and well sealing device for super high-rise high-water pressure deep well dewatering well | |
| CN103556644A (en) | Basement bottom plate dewatering well mouth plugging casing and construction method | |
| CN203514333U (en) | Basement soleplate precipitation well mouth blocking sleeve | |
| CN104652495B (en) | Internal support of foundation pit column and base plate node waterproof construction technology | |
| CN211395718U (en) | Plugging device for dewatering well | |
| CN109025899B (en) | Well sealing device | |
| CN204491645U (en) | A kind of deep foundation pit precipitation well-sealing device | |
| CN212641468U (en) | Pit-in-pit rapid construction structure | |
| CN203768925U (en) | Seal device for dewatering well in foundation pit | |
| CN209040133U (en) | Well-covering device for dewatering well suitable for rich groundwater region | |
| CN103174154A (en) | Underground building bottom plate water burst well pit solid seal method and auxiliary water lowering device | |
| CN216586628U (en) | Multiple waterproof shutoff structure based on high water level foundation slab precipitation well | |
| CN107288141B (en) | A kind of seamless flexible water construction technology of contrary sequence method | |
| CN214940305U (en) | Waterproof sleeve pipe of well is dredged to combination foundation ditch dewatering | |
| CN215669621U (en) | High pressure precipitation well plugging device | |
| CN215168312U (en) | Civil air defense engineering roof hole-opening repairing structure | |
| CN205259200U (en) | Foundation ditch confined aquifer precipitation well plugging device | |
| CN208917857U (en) | A kind of tool that shuts off at round sump foundation pit bottom | |
| CN207452927U (en) | Caisson drainage arrangement in a kind of super foundation | |
| CN107419811A (en) | The method and its structure of basement bottom board support pile and spilled water hole waterproofing and leakage-stopping | |
| CN210113318U (en) | Foundation ditch basement gushes water and gushes sand plugging device | |
| CN111364468B (en) | Bridge pile foundation concrete pouring equipment and process applied to water accumulation area | |
| CN207194952U (en) | A kind of flood mine working bottom plate is harnessed the river structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |