CN110387897A - A kind of plugging dewatering well device and plugging dewatering well method - Google Patents
A kind of plugging dewatering well device and plugging dewatering well method Download PDFInfo
- Publication number
- CN110387897A CN110387897A CN201910614336.XA CN201910614336A CN110387897A CN 110387897 A CN110387897 A CN 110387897A CN 201910614336 A CN201910614336 A CN 201910614336A CN 110387897 A CN110387897 A CN 110387897A
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- Prior art keywords
- well
- shut
- downcast
- casing
- pipe
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000010276 construction Methods 0.000 claims abstract description 6
- 239000004568 cement Substances 0.000 claims description 10
- 239000004927 clay Substances 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000005476 soldering Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a kind of plugging dewatering well devices, including the shut-in well casing being sheathed on outside downcast well pipe, the bottom end of the shut-in well casing is supported by basement bottom board, the top of the shut-in well casing is higher than the top of the downcast well pipe, and the top of the shut-in well casing is fixedly connected with casing cover board, and micro- swollen water-proof concrete is provided between the shut-in well casing and the downcast well pipe.Beneficial effects of the present invention: can accomplish molding of once shunting in a well, and save the cost no longer carries out secondary do over again；Reduce working procedure, improves working efficiency；Place is easy to arrange, project progress is fast, and disturbing factor is few；Be conducive to civilized construction, can ensure that the intact use of peripheral facilities, not will cause and fail because blocking, and influence the other process of basement, forms good economic benefit.
Description
Technical field
The present invention relates to plugging dewatering well technical fields, it particularly relates to a kind of plugging dewatering well device and dewatering well
Method for blocking.
Background technique
Plugging dewatering well method traditional in the past is, after stopping precipitation, with leak stopping king, closure spirit, quick-hardening cement etc. and mixes
Solidifying soil mixes, and puts into downcast well pipe, because water level rises fast, no water shutoff, envelope gas measure, method for blocking after stopping precipitation
Speed of application is slow, and the primary success rate that blocks is low, often results in closure failure.
For the problems in the relevant technologies, currently no effective solution has been proposed.
Summary of the invention
For above-mentioned technical problem in the related technology, the present invention proposes a kind of plugging dewatering well device, has structure letter
The advantages that single practical, energy saving and safe operation.
To realize the above-mentioned technical purpose, the technical scheme of the present invention is realized as follows:
A kind of plugging dewatering well device, which is characterized in that including the shut-in well casing being sheathed on outside downcast well pipe, the shut-in well set
The bottom end of pipe is supported by basement bottom board, and the top of the shut-in well casing is higher than the top of the downcast well pipe, and the envelope
The top of casing is fixedly connected with casing cover board, and it is mixed that micro- swollen waterproof is provided between the shut-in well casing and the downcast well pipe
Solidifying soil.
Further, the lower weld of the shut-in well casing has twice seal ring.
Further, the shut-in well casing is made of seamless steel pipe, the seamless steel pipe with a thickness of 8mm, diameter is
350mm。
Further, the diameter of the downcast well pipe is 250mm.
Further, micro- swollen water-proof concrete pours with a thickness of 50mm, the label of micro- swollen water-proof concrete
It is higher than the concrete grade of the basement bottom board by one.
The invention also discloses a kind of plugging dewatering well methods, comprising the following steps:
Shut-in well casing is placed on outside downcast well pipe by S1, and the bottom end of the shut-in well casing is supported by basement bottom board, and is guaranteed
The top of the shut-in well casing is higher than the top of the downcast well pipe；
S2 pours micro- swollen water-proof concrete between the downcast well pipe and the shut-in well casing；
S3 fills clay ball in the downcast well pipe and quick-hardening cement is blocked；
S4 welds well casing cover board on the top of the downcast well pipe；
Top soldering sleeve cover board of the S5 in the shut-in well casing.
Further, in S2, after the completion of micro- swollen water-proof concrete pours, in the lower weld two of the shut-in well casing
Road seal ring, and the bottom for the seal ring being turned on the waterproof layer of basement bottom board.
Further, using lute in progress waterproof shell nosing treatment between the waterproof layer and the seal ring.
Further, in S3, the clay ball is first filled in the downcast well pipe, the clay ball to be filled
When height is lower than the downcast well pipe top 1m, the quick-hardening cement is refilled to the top of the downcast well pipe.
Further, in S1, the shut-in well casing is placed in outside the downcast well pipe by the way of lifting.
Beneficial effects of the present invention: can accomplish molding of once shunting in a well, and save the cost no longer carries out secondary do over again；Reduce
Working procedure improves working efficiency；Place is easy to arrange, project progress is fast, and disturbing factor is few；Be conducive to civilized construction, it can be really
The intact use of peripheral facilities is protected, not will cause and fail because blocking, and influences the other process of basement, forms good economy
Benefit.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the schematic diagram of the plugging dewatering well device described according to embodiments of the present invention.
In figure:
1, downcast well pipe；2, shut-in well casing；3, seal ring；4, well casing cover board；5, casing cover board；6, micro- swollen water-proof concrete；7,
Quick-hardening cement；8, basement bottom board.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art's every other embodiment obtained belong to what the present invention protected
Range.
As shown in Figure 1, a kind of plugging dewatering well device described according to embodiments of the present invention, including it is sheathed on downcast well pipe
The bottom end of shut-in well casing 2 outside 1, the shut-in well casing 2 is supported by basement bottom board 8, and the top of the shut-in well casing 2 is higher than
The top of the downcast well pipe 1, and the top of the shut-in well casing 2 is fixedly connected with casing cover board 5, the shut-in well casing 2
Micro- swollen water-proof concrete 6 is provided between the downcast well pipe 1.
In one particular embodiment of the present invention, the lower weld of the shut-in well casing 2 has twice seal ring 3.
In one particular embodiment of the present invention, the shut-in well casing 2 is made of seamless steel pipe, the seamless steel pipe
With a thickness of 8mm, diameter 350mm.
In one particular embodiment of the present invention, the diameter of the downcast well pipe 1 is 250mm.
In one particular embodiment of the present invention, micro- swollen water-proof concrete 6 pours with a thickness of 50mm, described micro-
The label of swollen water-proof concrete 6 is higher by one than the concrete grade of the basement bottom board 8.
The invention also discloses a kind of plugging dewatering well methods, comprising the following steps:
Shut-in well casing 2 is placed on outside downcast well pipe 1 by S1, and the bottom end of the shut-in well casing 2 is supported by basement bottom board 8, and
Guarantee that the top of the shut-in well casing 2 is higher than the top of the downcast well pipe 1；
S2 pours micro- swollen water-proof concrete 6 between the downcast well pipe 1 and the shut-in well casing 2；
S3 fills clay ball in the downcast well pipe 1 and quick-hardening cement 7 is blocked；
S4 welds well casing cover board 4 on the top of the downcast well pipe 1；
Top soldering sleeve cover board 5 of the S5 in the shut-in well casing 2.
In one particular embodiment of the present invention, in S2, after the completion of micro- swollen water-proof concrete 6 pours, described
The lower weld twice seal ring 3 of shut-in well casing 2, and the bottom for the seal ring 3 being turned on the waterproof layer of basement bottom board 8
Portion.
In one particular embodiment of the present invention, using lute between the waterproof layer and the seal ring 3
Carry out waterproof shell nosing treatment.
In one particular embodiment of the present invention, in S3, the clay ball is first filled in the downcast well pipe 1,
When the height of the clay ball to be filled is lower than the 1 top 1m of downcast well pipe, the quick-hardening cement 7 is refilled to the drop
The top of well pipe 1.
In one particular embodiment of the present invention, in S1, the shut-in well casing 2 is placed in institute by the way of lifting
It states outside downcast well pipe 1.
In order to facilitate above-mentioned technical proposal of the invention is understood, below by way of specifically used mode to above-mentioned skill of the invention
Art scheme is described in detail.
Plugging dewatering well device of the present invention, including shut-in well casing 2, casing cover board 5, micro- swollen water-proof concrete 6 etc..
Shut-in well casing 2 use seamless steel pipe be made, seamless steel pipe with a thickness of 8mm, diameter 350mm.Shut-in well casing 2
After handling in place, it is placed in the outside of downcast well pipe 1, the diameter of downcast well pipe 1 is 250mm.The bottom end of shut-in well casing 2 is by basement
Bottom plate 8 supports, and the top for casing 2 of shunting in a well is more slightly higher than the top of downcast well pipe 1.Pouring between downcast well pipe 1 and shut-in well casing 2
The micro- swollen water-proof concrete 6 for building higher than the concrete grade of basement bottom board 8 one, pours with a thickness of 50mm, pours height and does not answer
More than the top of downcast well pipe 1.
Clay ball and quick-hardening cement 7 is selected to be blocked in downcast well pipe 1, quick-hardening cement 7 is filled out to be enclosed in from downcast well pipe 1 and be pushed up
End is into this region between the position away from 1m below 1 top of downcast well pipe, for reinforcing the intensity on 1 top of downcast well pipe.
It is welded with well casing cover board 4 on the top of downcast well pipe 1 after closure, and is welded with casing cover board on the top of shut-in well casing 2
5。
If there are multiple downcast well pipes 1 to need to block, using with the consistent plugging dewatering well device of 1 quantity of downcast well pipe into
Row blocks, wherein the lower weld of highly minimum shut-in well casing 2 has twice seal ring 3, the waterproof layer of basement bottom board 8 is turned over
To 3 bottom of seal ring, waterproof shell nosing treatment is carried out using lute in.
When Specific construction；Shut-in well casing 2 is placed in 1 outside of downcast well pipe by the way of lifting, in this way regardless of precipitation
How well casing 1 deforms all the waterproof that will not influence basement bottom board 8；The waterproof layer of basement bottom board 8 is turned over to 3 bottom of seal ring
Portion carries out waterproof shell nosing treatment using lute in, and processing in this way can effectively guarantee waterproof construction quality, guarantees basement bottom
The construction of plate 8；Before blocking downcast well pipe 1, the gap between shut-in well casing 2 and downcast well pipe 1 is used than basement bottom board 8
The micro expansive concrete 6 of a high label pours；So downcast well pipe 1 and shut-in well casing 2 can be connected into an entirety, a list
One 6mm thickness downcast well pipe 1 becomes 1 thickness 6mm of a 64mm(downcast well pipe, and micro expansive concrete 6 thick (350mm-250mm)/2=
50mm, shunt in a well 2 thickness 8mm of casing) a thick double steel plate dewatering well shunts in a well cylinder, is equivalent to forms the envelope reinforced in this way
Casing；Shut-in well casing 2 is completely embedded with basement bottom board 8, forms good waterproofness；Add on 1 top of downcast well pipe
Weldering well casing cover board 4 and be welded with casing cover board 5 on shut-in well 2 top of casing, form dual fail-safe, be effectively guaranteed plugging dewatering well at
Function.
In conclusion by means of above-mentioned technical proposal of the invention, reduce equipment investment and operation and maintenance number, at
This；Improve operational safety；Improve discharge stability in sulfuric acid extraction process.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of plugging dewatering well device, which is characterized in that including being sheathed on the external shut-in well casing (2) of downcast well pipe (1), institute
The bottom end for stating shut-in well casing (2) is supported by basement bottom board (8), and the top of shut-in well casing (2) is higher than the downcast well pipe
(1) top, and the top of shut-in well casing (2) is fixedly connected with casing cover board (5), the shut-in well casing (2) and institute
It states and is provided with micro- swollen water-proof concrete (6) between downcast well pipe (1).
2. plugging dewatering well device according to claim 1, which is characterized in that the lower weld of shut-in well casing (2)
There are twice seal ring (3).
3. plugging dewatering well device according to claim 1, which is characterized in that the shut-in well casing (2) uses seamless steel
Pipe is made, the seamless steel pipe with a thickness of 8mm, diameter 350mm.
4. a kind of construction method for plugging dewatering well according to claim 3, which is characterized in that the downcast well pipe
(1) diameter is 250mm.
5. plugging dewatering well device according to claim 4, which is characterized in that micro- swollen water-proof concrete (6) are poured
It builds with a thickness of 50mm, the label of micro- swollen water-proof concrete (6) is higher by one than the concrete grade of the basement bottom board (8).
6. a kind of plugging dewatering well method, which comprises the following steps:
The S1 casing (2) that will shunt in a well is placed on that downcast well pipe (1) is external, and the bottom end of shut-in well casing (2) is propped up by basement bottom board (8)
Support, and guarantee that the top of shut-in well casing (2) is higher than the top of the downcast well pipe (1)；
S2 pours micro- swollen water-proof concrete (6) between the downcast well pipe (1) and the shut-in well casing (2)；
S3 filling clay ball and quick-hardening cement (7) in the downcast well pipe (1) are blocked；
S4 welds well casing cover board (4) on the top of the downcast well pipe (1)；
Top soldering sleeve cover board (5) of the S5 in shut-in well casing (2).
7. plugging dewatering well method according to claim 6, which is characterized in that in S2, to micro- swollen water-proof concrete (6)
After the completion of pouring, in the lower weld twice seal ring (3) of shut-in well casing (2), and by the waterproof layer of basement bottom board (8)
On turn to the bottoms of the seal ring (3).
8. plugging dewatering well method according to claim 7, which is characterized in that using lute in the waterproof layer with
Waterproof shell nosing treatment is carried out between the seal ring (3).
9. plugging dewatering well method according to claim 6, which is characterized in that in S3, first in the downcast well pipe (1)
The interior filling clay ball refills institute when the height of the clay ball to be filled is lower than the downcast well pipe (1) top 1m
State the top of quick-hardening cement (7) to the downcast well pipe (1).
10. plugging dewatering well method according to claim 6, which is characterized in that in S1, by institute by the way of lifting
It states shut-in well casing (2) and is placed in the downcast well pipe (1) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910614336.XA CN110387897A (en) | 2019-07-09 | 2019-07-09 | A kind of plugging dewatering well device and plugging dewatering well method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910614336.XA CN110387897A (en) | 2019-07-09 | 2019-07-09 | A kind of plugging dewatering well device and plugging dewatering well method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110387897A true CN110387897A (en) | 2019-10-29 |
Family
ID=68286441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910614336.XA Pending CN110387897A (en) | 2019-07-09 | 2019-07-09 | A kind of plugging dewatering well device and plugging dewatering well method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU883349A1 (en) * | 1980-03-28 | 1981-11-23 | Научно-производственное объединение по термическим методам добычи нефти | Device for preventing sand-clogging of wells |
| CN201172828Y (en) * | 2008-03-19 | 2008-12-31 | 山西第六建筑有限公司 | Well-covering device for dewatering well |
| CN203768925U (en) * | 2014-04-02 | 2014-08-13 | 于航 | Seal device for dewatering well in foundation pit |
| CN204343312U (en) * | 2014-12-15 | 2015-05-20 | 中国建筑一局(集团)有限公司 | A kind of plugging device of precipitation well in foundation pit |
| CN207727600U (en) * | 2017-12-13 | 2018-08-14 | 中国一冶集团有限公司 | Plugging dewatering well device |
| CN211395718U (en) * | 2019-07-09 | 2020-09-01 | 中铁城建集团北京工程有限公司 | Plugging device for dewatering well |
-
2019
- 2019-07-09 CN CN201910614336.XA patent/CN110387897A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU883349A1 (en) * | 1980-03-28 | 1981-11-23 | Научно-производственное объединение по термическим методам добычи нефти | Device for preventing sand-clogging of wells |
| CN201172828Y (en) * | 2008-03-19 | 2008-12-31 | 山西第六建筑有限公司 | Well-covering device for dewatering well |
| CN203768925U (en) * | 2014-04-02 | 2014-08-13 | 于航 | Seal device for dewatering well in foundation pit |
| CN204343312U (en) * | 2014-12-15 | 2015-05-20 | 中国建筑一局(集团)有限公司 | A kind of plugging device of precipitation well in foundation pit |
| CN207727600U (en) * | 2017-12-13 | 2018-08-14 | 中国一冶集团有限公司 | Plugging dewatering well device |
| CN211395718U (en) * | 2019-07-09 | 2020-09-01 | 中铁城建集团北京工程有限公司 | Plugging device for dewatering well |
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