CN107246022A - A kind of dewatering well tubular construction and construction method for stretching to artesian aquifer - Google Patents
A kind of dewatering well tubular construction and construction method for stretching to artesian aquifer Download PDFInfo
- Publication number
- CN107246022A CN107246022A CN201710624865.9A CN201710624865A CN107246022A CN 107246022 A CN107246022 A CN 107246022A CN 201710624865 A CN201710624865 A CN 201710624865A CN 107246022 A CN107246022 A CN 107246022A
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- Prior art keywords
- pipe
- artesian aquifer
- dewatering well
- well
- stretching
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- 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
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- 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)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention provides a kind of dewatering well construction method for stretching to artesian aquifer, comprise the following steps：1), well bore:According to design requirement, in setting position well bore, the wellhole sequentially passes through underground shoaling layer, soil layer until stretching into artesian aquifer；2), down tube:Dewatering well is transferred with tubular construction to drilling, and ensures that ttom of pipe end stretches to artesian aquifer；3) filtrate, is filled:Clay is filled between pipe and wellbore wall, filtrate is filled between screen pipe and wellbore wall to design height；4), well-flushing；5), sinking immersible pump.It is of the present invention a kind of to stretch in the dewatering well construction method of artesian aquifer, dewatering well is drilled to artesian aquifer according to construction demand, then by dewatering well with tubular construction sinking to wellhole, this method can control precipitation water level and not influence artesian water, it ensure that Rain quality, created favorable conditions for earth excavation, achieve good technical economic benefit.
Description
Technical field
The invention belongs to the realm of building construction, more particularly, to a kind of dewatering well tubular construction for stretching to artesian aquifer and
Construction method.
Background technology
The technical scheme of prior art：Recently as the fast development of China's urban construction, high-rise, high-rise building is not
Disconnected to emerge in large numbers, all kinds of heavy constructions such as subway station, Railway Passenger Stations are increasing, and underground space development scale is also increasing, base
Hole depth is also deepened therewith.In place whether deep foundation pit precipitation, directly affect pit earthwork and excavate and construction of underground structure construction.With
Foundation depth increase, precipitation well depth is consequently increased, therefore to ensure that dewatering well effective depth needs to squeeze into artesian aquifer, together
Shi Caiyong carries out precipitation without the big mouth pipe well of sand and bridge-type drainage steel tube well to foundation ditch.
The shortcoming of existing precipitation technology：Deep foundation pit precipitation well is used without the big mouth pipe well of sand or bridge-type drainage steel tube well precipitation,
Well casing, which penetrates artesian aquifer, can extract artesian water, and artesian water is such as extracted for a long time to be produced not to surrounding building, structures
Good influence.
The content of the invention
In view of this, the present invention is directed to propose a kind of dewatering well tubular construction and construction method for stretching to artesian aquifer,
To solve the adverse consequences that influence of traditional precipitation method to artesian aquifer is produced.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of dewatering well tubular construction for stretching to artesian aquifer, including screen pipe and the screen pipe sealed bottom connection
Pipe, the ttom of pipe end is sealedly connected with shrouding.
Further, the screen pipe is bridge-type chimney filter.
Further, the pipe is steel pipe, and the pipe and screen pipe are welded to connect.
Relative to prior art, a kind of dewatering well tubular construction for stretching to artesian aquifer of the present invention has following
Advantage：
It is of the present invention it is a kind of stretch in the dewatering well tubular construction of artesian aquifer, filtering bottom of the tube be provided with steel
Pipe, steel pipe bottom is provided with shrouding, can control precipitation water level using the design product and not influence artesian water, it is to avoid pair
The influence of artesian aquifer is so as to reduce engineering cost, it is ensured that Rain quality, is that earth excavation creates favorable conditions, achieves
Good technical economic benefit.
A kind of dewatering well construction method for stretching to artesian aquifer, comprises the following steps：
1), well bore
According to design requirement, in setting position well bore, the wellhole sequentially passes through underground shoaling layer, soil layer and held until stretching into
Press water layer, it is ensured that wellhole meets design requirement in artesian aquifer depth；
2), down tube
Dewatering well is transferred with tubular construction to drilling, and ensures that ttom of pipe end stretches to artesian aquifer, and tube top end is located at
Position between underground shoaling layer and artesian aquifer；
3) filtrate, is filled
Clay is filled between pipe and wellbore wall, filtrate is filled between screen pipe and wellbore wall to design height；
4), well-flushing
5), sinking immersible pump
By immersible pump sinking in managing.
Further, the filtrate is particle diameter 0.2-0.3cm stone nitres.
Further, step 4) in, well-flushing to mud balance is less than 1.05.
Relative to prior art, a kind of dewatering well construction method for stretching to artesian aquifer of the present invention has following
Advantage：
It is of the present invention it is a kind of stretch in the dewatering well construction method of artesian aquifer, according to construction demand by dewatering well
Drilling is to artesian aquifer, then by dewatering well with tubular construction sinking to wellhole, and this method can control precipitation water level and not
Influence artesian water.This construction method avoids the influence to artesian aquifer to reduce engineering cost, it is ensured that Rain quality,
Created favorable conditions for earth excavation, achieve good technical economic benefit.
Brief description of the drawings
The accompanying drawing for constituting the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is a kind of dewatering well tubular construction schematic diagram for stretching to artesian aquifer described in the embodiment of the present invention；
Fig. 2 is dewatering well and drop in a kind of dewatering well construction method for stretching to artesian aquifer described in the embodiment of the present invention
Well tubular construction position relationship schematic diagram.
Description of reference numerals：
1- screen pipes；11- filter openings；2- is managed；3- shroudings.
Embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than indicate or dark
Specific orientation must be had, with specific azimuth configuration and operation by showing the device or element of meaning, therefore it is not intended that right
The limitation of the present invention.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating or implying phase
To importance or the implicit quantity for indicating indicated technical characteristic.Thus, the feature for defining " first ", " second " etc. can
To express or implicitly include one or more this feature.In the description of the invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in figure 1, a kind of dewatering well tubular construction for stretching to artesian aquifer, including screen pipe 1 and the bottom of screen pipe 1
The pipe 2 that portion is connected by welded seal, the screen pipe 1 is bridge-type chimney filter, and the bottom end seal of pipe 2 is connected with shrouding 3.
A kind of dewatering well construction method for stretching to artesian aquifer, comprises the following steps：
1), well bore
According to design requirement, in setting position well bore, wellhole sequentially passes through underground shoaling layer, soil layer until stretching into pressure-bearing
Water layer, and ensure that wellhole meets shoveling elevation design requirement in artesian aquifer depth；
2), down tube
Dewatering well is steadily transferred to drilling with tubular construction, and ensures that the bottom of pipe 2 stretches to artesian aquifer, until shrouding
3 and wellhole bottom surface be affixed, and ensure position between the top of pipe 2 shoaling layer located underground and artesian aquifer；The position relationship ensures
Pipe 2 can not be permeable by artesian aquifer, and screen pipe 1 can be permeable by underground shoaling layer by filter opening 11 thereon, Jin Er
Completion base pit dewatering requirement under the conditions of artesian aquifer is not destroyed；
3) filtrate, is filled
Tonerde is filled between pipe 2 and wellbore wall, granularity is filled between screen pipe 1 and wellbore wall in 0.2-
0.3cm stone nitres, and stone nitre packed height meets design requirement, it must not exceed predetermined design height, and stone nitre prevents that gravel etc. is miscellaneous
Thing enters in screen pipe 1, serves filtration；
4), well-flushing
It is less than 1.05 using air compressor machine well-flushing to mud balance；
5), sinking immersible pump
By in immersible pump sinking to pipe 2.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (6)
1. a kind of dewatering well tubular construction for stretching to artesian aquifer, it is characterised in that：Including screen pipe (1) and the screen pipe
(1) pipe (2) of sealed bottom connection, pipe (2) bottom end seal is connected with shrouding (3).
2. a kind of dewatering well tubular construction according to claim 1, it is characterised in that：The screen pipe (1) is filtered for bridge-type
Pipe.
3. a kind of dewatering well tubular construction according to claim 1, it is characterised in that：The pipe (2) is steel pipe, the pipe
(2) it is welded to connect with screen pipe (1).
4. a kind of dewatering well construction method for stretching to artesian aquifer, it is characterised in that：Comprise the following steps：
1), well bore
According to design requirement, in setting position well bore, the wellhole sequentially passes through underground shoaling layer, soil layer until stretching into artesian water
Layer, it is ensured that wellhole meets design requirement in artesian aquifer depth；
2), down tube
Dewatering well is transferred with tubular construction to drilling, and ensures that pipe (2) bottom stretches to artesian aquifer, and pipe (2) top position
The position between underground shoaling layer and artesian aquifer；
3) filtrate, is filled
Clay is filled between wellbore wall in pipe (2), filtrate is filled between wellbore wall to designing height in screen pipe (1)
Degree；
4), well-flushing
5), sinking immersible pump
Immersible pump sinking is interior to (2) are managed.
5. a kind of dewatering well construction method for stretching to artesian aquifer according to claim 4, it is characterised in that：The filter
Expect for particle diameter 0.2-0.3cm stone nitres.
6. a kind of dewatering well construction method for stretching to artesian aquifer according to claim 4, it is characterised in that：Step 4)
In, well-flushing to mud balance is less than 1.05.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710624865.9A CN107246022A (en) | 2017-07-27 | 2017-07-27 | A kind of dewatering well tubular construction and construction method for stretching to artesian aquifer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710624865.9A CN107246022A (en) | 2017-07-27 | 2017-07-27 | A kind of dewatering well tubular construction and construction method for stretching to artesian aquifer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107246022A true CN107246022A (en) | 2017-10-13 |
Family
ID=60012487
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710624865.9A Pending CN107246022A (en) | 2017-07-27 | 2017-07-27 | A kind of dewatering well tubular construction and construction method for stretching to artesian aquifer |
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| CN (1) | CN107246022A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882156A (en) * | 2017-12-10 | 2018-04-06 | 成都隶盈科技有限公司 | The construction method that a kind of basement guarded drainage combines |
| CN109577353A (en) * | 2018-11-07 | 2019-04-05 | 江苏兴厦建设工程集团有限公司 | A kind of prefabricated regenerated aggregate concrete downcast well pipe and its construction method |
| CN109736339A (en) * | 2019-01-29 | 2019-05-10 | 天津市武清区建筑工程总公司 | A kind of construction method of dewatering well |
| CN111173073A (en) * | 2020-01-07 | 2020-05-19 | 中国能源建设集团广东省电力设计研究院有限公司 | Novel cylindrical steel structure water taking and draining port system and design method thereof |
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| JP2009121063A (en) * | 2007-11-12 | 2009-06-04 | Ohbayashi Corp | Service well, method of constructing service well, and structure of service well |
| CN203188225U (en) * | 2013-04-23 | 2013-09-11 | 中建八局第二建设有限公司 | Novel dewatering-well sealing structure |
| CN105350554A (en) * | 2015-11-24 | 2016-02-24 | 北京崇建工程有限公司 | High-water-level foundation pit dewatering construction method |
| JP2016148190A (en) * | 2015-02-12 | 2016-08-18 | 東日本旅客鉄道株式会社 | Installation method of water-filling well |
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2017
- 2017-07-27 CN CN201710624865.9A patent/CN107246022A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009121063A (en) * | 2007-11-12 | 2009-06-04 | Ohbayashi Corp | Service well, method of constructing service well, and structure of service well |
| CN203188225U (en) * | 2013-04-23 | 2013-09-11 | 中建八局第二建设有限公司 | Novel dewatering-well sealing structure |
| JP2016148190A (en) * | 2015-02-12 | 2016-08-18 | 東日本旅客鉄道株式会社 | Installation method of water-filling well |
| CN105350554A (en) * | 2015-11-24 | 2016-02-24 | 北京崇建工程有限公司 | High-water-level foundation pit dewatering construction method |
Non-Patent Citations (1)
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| 张彦平: "迎宾三路隧道工程基坑降水施工技术", 《中国房地产业》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882156A (en) * | 2017-12-10 | 2018-04-06 | 成都隶盈科技有限公司 | The construction method that a kind of basement guarded drainage combines |
| CN109577353A (en) * | 2018-11-07 | 2019-04-05 | 江苏兴厦建设工程集团有限公司 | A kind of prefabricated regenerated aggregate concrete downcast well pipe and its construction method |
| CN109736339A (en) * | 2019-01-29 | 2019-05-10 | 天津市武清区建筑工程总公司 | A kind of construction method of dewatering well |
| CN111173073A (en) * | 2020-01-07 | 2020-05-19 | 中国能源建设集团广东省电力设计研究院有限公司 | Novel cylindrical steel structure water taking and draining port system and design method thereof |
| CN111173073B (en) * | 2020-01-07 | 2021-04-23 | 中国能源建设集团广东省电力设计研究院有限公司 | Novel cylindrical steel structure water taking and draining port system and design method thereof |
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Application publication date: 20171013 |