CN110485510A - A kind of forced recharge well construction of gradation and its application method - Google Patents
A kind of forced recharge well construction of gradation and its application method Download PDFInfo
- Publication number
- CN110485510A CN110485510A CN201910919253.1A CN201910919253A CN110485510A CN 110485510 A CN110485510 A CN 110485510A CN 201910919253 A CN201910919253 A CN 201910919253A CN 110485510 A CN110485510 A CN 110485510A
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- section
- chimney filter
- recharge
- filter section
- expanding reach
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Links
- 238000010276 construction Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000007373 indentation Methods 0.000 claims abstract description 23
- 230000003068 static effect Effects 0.000 claims description 34
- 239000003673 groundwater Substances 0.000 claims description 7
- 239000011241 protective layer Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 15
- 239000002689 soil Substances 0.000 description 8
- 239000002184 metal Substances 0.000 description 7
- 239000010410 layer Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 210000002445 nipple Anatomy 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 239000004575 stone Substances 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
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/32—Methods or installations for obtaining or collecting drinking water or tap water with artificial enrichment, e.g. by adding water from a pond or a river
- E03B3/34—Methods or installations for obtaining or collecting drinking water or tap water with artificial enrichment, e.g. by adding water from a pond or a river of underground water
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
- Y02A20/406—Aquifer recharge
Abstract
The present invention relates to foundation pit construction technical fields, more particularly to a kind of forced recharge well construction of gradation and its application method, it is characterized by: the structure includes indentation end, chimney filter section, well casing section, expanding reach and water system, wherein the indentation end is arranged in bottom, its top connects the chimney filter section, the chimney filter section connects the well casing section, and the well casing section connects the expanding reach, and the expanding reach connects the water system；Permeable section and structural sections are provided in the chimney filter section, permeable section of the caliber is less than the caliber of the structural sections.The invention has the advantages that construction is convenient, high-efficient: at well economy: strong applicability.
Description
Technical field
The present invention relates to foundation pit construction technical field more particularly to a kind of forced recharge well construction of gradation and its application sides
Method.
Background technique
In deep-foundation pit engineering, it usually needs reduce level of ground water in foundation pit and be convenient for engineering normal construction, reduce foundation pit
When interior groundwater level, it often will cause the outer water level decreasing of foundation pit, in turn result in foundation pit external cause water level decreasing and be laminated with generating
Shrink mark drop or building settlement deform, and inverted well recharge underground water is usually taken in engineering, reduce and cheat the possibility that outer water level reduces, from
And foundation pit surrounding environment is protected, it avoids cheating outer stratum or building deformation is larger.
Common inverted well usually requires first drilling machine pore-forming at present, then buries well construction in hole, and it is subsequent still need into
The complicated procedures of forming such as row well-flushing.At well construction time length, complex procedures, at high cost.
Summary of the invention
The purpose of the present invention is according to above-mentioned the deficiencies in the prior art, provide a kind of forced recharge well construction of gradation and
Its application method quickly forms recharge well construction by using the minor diameter well casing of merogenesis, chimney filter and indentation end, realizes in foundation pit
Groundwater recharge.
The object of the invention realization is completed by following technical scheme:
A kind of forced recharge well construction of gradation, for carrying out groundwater recharge to foundation pit, it is characterised in that: the structure includes
It is pressed into end, chimney filter section, well casing section, expanding reach and water system, wherein indentation end setting, in bottom, top connects institute
State chimney filter section, the chimney filter section connects the well casing section, and the well casing section connects the expanding reach, described in the expanding reach connection
Water system；Permeable section and structural sections are provided in the chimney filter section, permeable section of the caliber is less than the pipe of the structural sections
Diameter.
The expanding reach refers to the enlarged configuration being provided on its pipeline section greater than its caliber.
Between the indentation end and the chimney filter section, between the chimney filter section and the well casing section, the well casing section and institute
State between expanding reach, between the expanding reach and the water system in one or one or more connection using detachable
Formula is connected and fixed.
Described permeable section external setting matcoveredn.
The expanding reach is connected by connecting the well casing section and/or the chimney filter section with the water system.
The water system is provided with supercharging equipment.
It is a kind of to be related to the application method of the forced recharge well construction of above-mentioned gradation, it is characterised in that: to utilize static pressure equipment
It will be pressed into end, chimney filter section, well casing section and expanding reach and be successively pressed into designated position, the chimney filter section is made to be located at the specified mark of recharge
It is high；During static pressure, by several times connect one by one the indentation end, the chimney filter section, the well casing section and the expanding reach from
And constitute recharge well construction；The expanding reach is connected into water system, the water system pass through the chimney filter section permeable section
Carry out recharge.
Multiple recharges in designated position specify elevation location that the chimney filter section is arranged, and realize multipoint back-filling.
Before the inverted well structure static pressure, in designated position, static pressure is pressed into the preliminary pore-forming of metallic rod.
The application method of the forced recharge well construction of a kind of gradation according to claim 7, it is characterised in that: returning
After the completion of filling, the recharge well construction merogenesis is extracted and is recycled.
The invention has the advantages that construction is convenient, high-efficient: conventional inverted well need to first carry out Completion of Drilling Hole, then embedded well casing,
Chimney filter, filtrate etc., the complex procedures and drilling construction time is long, quality is difficult to ensure, can be used indentation metallic rod rapid preliminary at
Hole, then well casing, the direct merogenesis of chimney filter section are pressed into soil, and do not need backfill filtrate, difficulty of construction is small, the time is short；
At well economy: adding filter using the more existing major diameter well casing of the structure of minor diameter hollow metal tube and slub type chimney filter section
The form of pipe, well construction itself is at low cost, and significantly reduces at well construction cost compared with the prior art, in addition, well construction of the present invention
It is reused after recyclable, cost can be significantly reduced；
Strong applicability: small device static pressure can be used in well construction of the present invention, and merogenesis is pressed into soil, to construction space, clear height requirement
It is lower, the low clearance carried out is difficult to for the construction of current inverted well well construction, narrow and small place has stronger applicability；
Therefore the present invention has stronger economy, exploitativeness and applicability.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the first structural schematic diagram of chimney filter section of the present invention；
Fig. 3 is second of structural schematic diagram of chimney filter section of the present invention；
Fig. 4 is expanding reach structural schematic diagram of the present invention；
Fig. 5 is one step 1 schematic diagram of the embodiment of the present invention；
Fig. 6 is one step 2 schematic diagram of the embodiment of the present invention；
Fig. 7 is one step 3 schematic diagram of the embodiment of the present invention；
Fig. 8 is one step 4 schematic diagram of the embodiment of the present invention；
Fig. 9 is one step 5 schematic diagram of the embodiment of the present invention；
Figure 10 is one step 6 schematic diagram of the embodiment of the present invention；
Figure 11 is two step 1 schematic diagram of the embodiment of the present invention；
Figure 12 is two step 2 schematic diagram of the embodiment of the present invention；
Figure 13 is two step 3 schematic diagram of the embodiment of the present invention；
Figure 14 is two step 4 schematic diagram of the embodiment of the present invention；
Figure 15 is two step 5 schematic diagram of the embodiment of the present invention；
Figure 16 is two step 6 schematic diagram of the embodiment of the present invention.
Specific embodiment
Feature of present invention and other correlated characteristics are described in further detail by embodiment below in conjunction with attached drawing, so as to
In the understanding of technical staff of the same trade:
As illustrated in figs. 1-16,1-11 is marked to respectively indicate in figure are as follows: indentation end 1, well casing section 3, expanding reach 4, is supplied water at chimney filter section 2
System 5, structural sections 6, permeable section 7, enlarged configuration 8, static pressure equipment 9, flowmeter 10, pressure gauge 11.
Embodiment one: as shown in Figure 1, the forced recharge well construction of gradation in the present embodiment includes indentation end 1, chimney filter section
2, well casing section 3, expanding reach 4 and water system 5, wherein
The upper and lower side of well casing section 3 is mechanically connected by nipple to be connected with expanding reach 4, chimney filter section 2 and other section well casing sections 3
It connects.Well casing section 3 uses metal tube material.
The upper and lower side of expanding reach 4 by nipple mechanical connection with well casing section 3, fillter section 2 and other section expanding reach 4 into
Row connection, as shown in figure 4, being provided with enlarged configuration 8 within the scope of the middle position of expanding reach 4, the diameter of the enlarged configuration 8 is greater than
Well casing section, and lower tube section part is then consistent with the diameter of well casing section 3 in remaining of expanding reach.Expanding reach 4 uses metal pipe material
Material.Enlarged configuration 8 can effectively prevent during recharge recharge water along the upward seepage flow of recharge well construction to ground, reduce recharge water to
The possibility of upper flowing improves the recharge efficiency of inverted well.
The upper and lower side of chimney filter section 2 is mechanically connected by nipple and is attached with well casing section 3 and other section chimney filter sections 2,
2 top and the bottom of chimney filter section are consistent with 3 diameter of well casing section, and intermediate tube segment limit is provided with slub type concaveconvex structure, such as Fig. 2 and Fig. 3
Shown, female parts are permeable section 7, and concave portion is structural sections 6, and the diameter of structural sections 6 is greater than permeable section 7 of diameter.At this point,
Since the diameter of structural sections 6 is greater than permeable section 7 of diameter, during the static pressure of chimney filter section 2, permeable section 7 will not be blocked
Plug.Chimney filter section 2 use metal tube material, permeable section 7 can be used set on metal tube hole it is permeable or use porous permeable material
Round tube.In order to further increase the protecting effect to permeable section 7, also settable rubber membrane is wrapped to form guarantor outside permeable section 7
Sheath.
Indentation end 1 is cone structure, and pointed end is pressed into soil, and tail end and chimney filter section 2 use nipple to carry out machinery
Connection keeps the two shape integral convenient for static pressure.
Water system 5 is attached by connecting tube with well casing section 3 using the external municipal water of constant pressure pump.
The specific implementation process of the forced recharge well construction of gradation in the present embodiment is as follows:
(1) as shown in figure 5, static pressure equipment 9 is arranged in designated position, and it will be pressed into end 1 and 3 merogenesis of well casing section indentation soil and extremely refer to
Depthkeeping degree.The designated position refers to the position for needing to carry out groundwater recharge.
(2) it will be pressed into end 1 using static pressure equipment to extract with 3 merogenesis of well casing section, preliminary pore-forming, as shown in Figure 6.Pass through indentation
The preliminary pore-forming at end 1 and well casing section 3, convenient for the implementation of subsequent static pressure technique.
(3) connection indentation end 1 and first segment chimney filter section 2, and be fixed on static pressure equipment 9 and carry out first segment chimney filter section 2
Static pressure connects the second section chimney filter section 2 in 2 tail portion of first segment chimney filter section after being pressed into soil, as shown in Figure 7.The static pressure of chimney filter section 2 is deep
Degree specifies absolute altitude to match with recharge.
(4) continue to connect several segments well casing section 3 according to application requirement and continue for well construction to be pressed into soil, as shown in Figure 8.
(5) during in 3 tail portion of well casing section connection expanding reach 4, simultaneously static pressure buries after being pressed into specified quantity well casing section 3, continue to connect
4 static pressure of a section expanding reach is connect, then connects static pressure after well casing section 3, as shown in Figure 9.
(6) continued after being pressed into specified quantity well casing section 3 according to application requirement, by final section well casing section 3 and water system 5
It connects, installs flowmeter 10 in connecting tube additional, remove static pressure equipment 9, complete inverted well and implement, as shown in Figure 10.Pass through flowmeter
The recharge water supply of 10 pairs of water systems 5 is accurately controlled, it is ensured that the construction precision of groundwater recharge construction.
Above to the specific implementation process of single-point recharge, and need to carry out different depth water-bearing layer when for complex condition
When the case where carrying out recharge, chimney filter section 2 can be set in specified elevation location corresponding to each depth water-bearing layer, multiple spot can be realized
Recharge.In order to guarantee recharge effect, settable well casing section 3 and expanding reach 4, variant to guarantee between corresponding chimney filter section 2
The construction precision when recharge of depth water-bearing layer avoids the recharge water seepage flow of bottom aqueous layer to upper aqueous layer, leads to underground water
Recharge construction does not reach requirement.
Embodiment two: the present embodiment compared to embodiment one the difference is that: well casing section 3, expanding reach 4, chimney filter section 2
Between detachable be connected and fixed can be connected and composed by mechanical snap.
It is arranged the more permeable Duan Geng great 's of diameter using high-intensitive permeable stone embedded metal skeleton, permeable section 7 outside for permeable section 7
Cylindrical metal film forms protective layer.
Indentation end 1 is taper four-bladed vane structure, and pointed end is pressed into soil.
Water system 5 is attached by connecting tube with well casing section 3 using the external water tank of high-pressure pump.
The specific implementation process of the present embodiment is as follows:
(1) static pressure equipment 9 is set in designated position, and will be pressed into end 1 in 3 merogenesis of well casing section indentation soil to designated depth, such as
Shown in Figure 11.
(2) it will be pressed into end 1 using static pressure equipment to extract with 3 merogenesis of well casing section, preliminary pore-forming, as shown in figure 12.
(3) static pressure equipment 9, connection indentation end 1 and first segment chimney filter section 2 are set in designated position, and are fixed on static pressure and set
The static pressure of first segment chimney filter section 2 is carried out on standby 9, as shown in figure 13.
(4) 3 static pressure of well casing section is connected after first segment chimney filter section 2, then connects 4 static pressure of expanding reach, as shown in figure 14.
(5) continue to connect 2 static pressure of chimney filter section, then connect 3 static pressure of well casing section, connect 4 static pressure of expanding reach, reconnect well casing
3 static pressure of section, as shown in figure 15.In this way, an indentation unit is constituted by chimney filter section 2, well casing section 3 and expanding reach 4, it can
By being pressed into multiple indentation units by several times and these indentation units being connected, multipoint back-filling can be realized.
(6) continued after being pressed into specified quantity well casing section 3 according to application requirement, by final section well casing section 3 and water system 5
It connects, installs pressure gauge 11 in connecting tube additional, remove static pressure equipment 9, complete inverted well and implement, as shown in figure 16.At this point, can also lead to
The tail end crossed in the expanding reach 4 of final section connects a well casing section and/or a chimney filter Duan Zaiyu water system 5 connection.
Above-described embodiment is when implementing: water system 5 is additionally provided with supercharging equipment, such as high-pressure pump, which uses
It is pressurized in recharge water, to realize pressure Water Spreading, guarantees recharge effect.
Although above embodiments are elaborated referring to conception and embodiment of the attached drawing to the object of the invention, this
Field those of ordinary skill will recognize, still can be right in the case where no disengaging claim limits the precondition of range
The present invention makes various modifications and variations therefore will not repeat them here.
Claims (10)
1. a kind of forced recharge well construction of gradation, for carrying out groundwater recharge to foundation pit, it is characterised in that: the structure packet
Indentation end, chimney filter section, well casing section, expanding reach and water system are included, wherein indentation end setting is in bottom, top connection
The chimney filter section, the chimney filter section connect the well casing section, and the well casing section connects the expanding reach, and the expanding reach connects institute
State water system；Permeable section and structural sections are provided in the chimney filter section, permeable section of the caliber is less than the structural sections
Caliber.
2. the forced recharge well construction of a kind of gradation according to claim 1, it is characterised in that: what the expanding reach referred to
It is that the enlarged configuration greater than its caliber is provided on pipeline section.
3. the forced recharge well construction of a kind of gradation according to claim 1, it is characterised in that: the indentation end with it is described
Between chimney filter section, between the chimney filter section and the well casing section, between the well casing section and the expanding reach, the expanding reach and
One or one or more connection between the water system is connected and fixed using detachable.
4. the forced recharge well construction of a kind of gradation according to claim 1, it is characterised in that: the permeable section of outside is set
It is equipped with protective layer.
5. the forced recharge well construction of a kind of gradation according to claim 1, it is characterised in that: the expanding reach passes through company
It connects the well casing section and/or the chimney filter section is connected with the water system.
6. the forced recharge well construction of a kind of gradation according to claim 1, it is characterised in that: the water system setting
There is supercharging equipment.
7. a kind of be related to the application method of the forced recharge well construction of gradation described in claim 1-6, it is characterised in that: utilize
Static pressure equipment will be pressed into end, chimney filter section, well casing section and expanding reach and successively be pressed into designated position, and the chimney filter section is made to be located at recharge
Specified absolute altitude；During static pressure, the indentation end, the chimney filter section, the well casing section and the expansion are connected one by one by several times
Big section is to constitute recharge well construction；The expanding reach is connected into water system, the water system passes through the chimney filter section
Permeable section of progress recharge.
8. a kind of application method of the forced recharge well construction of gradation according to claim 7, it is characterised in that: specified
Multiple recharges of position specify elevation location that the chimney filter section is arranged, and realize multipoint back-filling.
9. a kind of application method of the forced recharge well construction of gradation according to claim 7, it is characterised in that: described
Before inverted well structure static pressure, in designated position, static pressure is pressed into the preliminary pore-forming of metallic rod.
10. a kind of application method of the forced recharge well construction of gradation according to claim 7, it is characterised in that: returning
After the completion of filling, the recharge well construction merogenesis is extracted and is recycled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910919253.1A CN110485510B (en) | 2019-09-26 | 2019-09-26 | Fractional press-in type recharging well structure and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910919253.1A CN110485510B (en) | 2019-09-26 | 2019-09-26 | Fractional press-in type recharging well structure and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110485510A true CN110485510A (en) | 2019-11-22 |
| CN110485510B CN110485510B (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910919253.1A Active CN110485510B (en) | 2019-09-26 | 2019-09-26 | Fractional press-in type recharging well structure and application method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113279451A (en) * | 2021-06-21 | 2021-08-20 | 中国建筑第四工程局有限公司 | Full-automatic monitoring and recharging device next to underground deep foundation pit underground water level of subway |
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|---|---|---|---|---|
| CN103088836A (en) * | 2012-12-15 | 2013-05-08 | 天津大学 | Sedimentation control method for pumping water and performing reinjection in well casing simultaneously |
| CN103215937A (en) * | 2013-02-28 | 2013-07-24 | 中国地质大学（武汉） | Multilayer aquifer structure-based rainwater recharging underwater system |
| CN106193076A (en) * | 2016-08-10 | 2016-12-07 | 上海广联环境岩土工程股份有限公司 | Deep basal pit is combined the Groundwater Control method of water-bearing structure |
| CN106812147A (en) * | 2017-01-25 | 2017-06-09 | 济南轨道交通集团有限公司 | A kind of sand-pebble layer protects spring inverted well construction method |
| CN211143179U (en) * | 2019-09-26 | 2020-07-31 | 上海勘察设计研究院(集团)有限公司 | Fractional pressing-in type recharge well structure |
-
2019
- 2019-09-26 CN CN201910919253.1A patent/CN110485510B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103088836A (en) * | 2012-12-15 | 2013-05-08 | 天津大学 | Sedimentation control method for pumping water and performing reinjection in well casing simultaneously |
| CN103215937A (en) * | 2013-02-28 | 2013-07-24 | 中国地质大学（武汉） | Multilayer aquifer structure-based rainwater recharging underwater system |
| CN106193076A (en) * | 2016-08-10 | 2016-12-07 | 上海广联环境岩土工程股份有限公司 | Deep basal pit is combined the Groundwater Control method of water-bearing structure |
| CN106812147A (en) * | 2017-01-25 | 2017-06-09 | 济南轨道交通集团有限公司 | A kind of sand-pebble layer protects spring inverted well construction method |
| CN211143179U (en) * | 2019-09-26 | 2020-07-31 | 上海勘察设计研究院(集团)有限公司 | Fractional pressing-in type recharge well structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113279451A (en) * | 2021-06-21 | 2021-08-20 | 中国建筑第四工程局有限公司 | Full-automatic monitoring and recharging device next to underground deep foundation pit underground water level of subway |
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| CN110485510B (en) | 2024-03-19 |
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