CN109629586B - Recharging well with water filtering structure - Google Patents
Recharging well with water filtering structure Download PDFInfo
- Publication number
- CN109629586B CN109629586B CN201910035670.XA CN201910035670A CN109629586B CN 109629586 B CN109629586 B CN 109629586B CN 201910035670 A CN201910035670 A CN 201910035670A CN 109629586 B CN109629586 B CN 109629586B
- Authority
- CN
- China
- Prior art keywords
- water
- pipe
- well
- water filtering
- pipe part
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 139
- 238000001914 filtration Methods 0.000 title claims abstract description 63
- 239000011229 interlayer Substances 0.000 claims abstract description 14
- 239000010410 layer Substances 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 13
- 238000004804 winding Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 9
- 230000002093 peripheral effect Effects 0.000 abstract description 4
- 238000011010 flushing procedure Methods 0.000 description 6
- 230000002411 adverse Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000002349 well water Substances 0.000 description 2
- 235000020681 well water Nutrition 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000007787 solid 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
- E03B3/06—Methods or installations for obtaining or collecting drinking water or tap water from underground
- E03B3/08—Obtaining and confining water by means of wells
- E03B3/10—Obtaining and confining water by means of wells by means of pit wells
- E03B3/11—Obtaining and confining water by means of wells by means of pit wells in combination with tubes, e.g. perforated, extending horizontally, or upwardly inclined, exterior to the pits
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Paleontology (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
A recharging well with a drainage structure, characterized in that it comprises a watertight well pipe part and a drainage pipe part; the upper part of the water filtering pipe part is connected with the water-proof well pipe part, and the inside of the water filtering pipe part is communicated with the water-proof well pipe part; the pipe wall of the water filtering pipe part is provided with a water filtering interlayer, and the water filtering interlayer is communicated with the water inlet pipe. According to the invention, no water pumping equipment is required to be installed, water is pumped into the well in the pumping process, the peripheral water level of the recharging well is prevented from dropping, the operation is simple, the influence on the environment is small, and the effect is reliable.
Description
Technical Field
The invention relates to a recharging technology for reducing the influence of a foundation pit dewatering process on the surrounding environment, in particular to a recharging well with a water filtering structure.
Background
At present, a recharging well in the prior art adopts a well pipe and a water filtering pipe with the same diameter from top to bottom, and the clearance between the well wall and the hole wall is generally about 150 mm. In addition, in order to implement the pumping, the original recharging well often needs to place connected pumping equipment in the well in advance, and when the recharging well needs to pump water, the recharging well stops to start the pumping equipment to pump water, so that the pumping function is achieved. Using the prior art, there are the following drawbacks: a. the clearance between the well wall and the hole wall is small, the backfill water-stopping effect is not easy to control, and the backfill water-stopping effect is poor, so that the pressurized recharging process is adopted to generate the well wall water burst to cause recharging failure; b. the pumping equipment is adopted for pumping back, so that the peripheral water level of the recharging well is further reduced, and the peripheral environment is further adversely affected by improper control.
Disclosure of Invention
The invention aims to provide a recharging well with a water filtering structure, which can solve the defects in the prior art, and can ensure that the water stopping effect meets the requirement of certain pressurizing recharging pressure while conveniently backfilling water stopping materials by reducing the diameter of an upper well pipe and enlarging the gap between a well wall and a hole wall; and the pumping equipment is removed by changing the structure of the recharging well, so that the pumping requirement of the recharging well is met on the premise of not pumping water.
The technical scheme of the invention is as follows: a recharging well with a drainage structure, characterized in that it comprises a watertight well pipe part and a drainage pipe part; the upper part of the water filtering pipe part is connected with the water-proof well pipe part, and the inside of the water filtering pipe part is communicated with the water-proof well pipe part; the pipe wall of the water filtering pipe part is provided with a water filtering interlayer which is communicated with the water inlet pipe; the diameter of the water impermeable well tubular part is smaller than the diameter of the filter tube part.
The water filtering pipe part is of a double-layer structure, and the water filtering interlayer is positioned between an inner layer water filtering pipe and an outer layer water filtering pipe of the water filtering pipe part.
The water filtering interlayer is communicated with a plurality of evenly distributed water inlet pipes, the top ends of the water inlet pipes are converged to a main water pipe, and a valve is arranged on the main water pipe.
The inner layer of the filter pipe adopts a winding filter pipe, and the outer layer of the filter pipe adopts a bridge filter pipe.
The main water pipe is arranged inside the watertight well pipe part or outside the watertight well pipe part and extends out of the ground.
And the outside of the water filtering pipe part is backfilled with a filter material, and the outside of the watertight well pipe part is backfilled with a water stopping material.
The watertight well pipe part is provided with a valve.
The distance between the outer wall of the water filtering pipe and the hole wall is not less than 100mm.
After the construction of the recharging well structure is finished, the valve on the main water pipe and the valve of the watertight well pipe part are opened, water is injected into the well through the main water pipe, and mud in the pore forming process is discharged from the opening of the watertight well pipe part under the driving of water flow, so that the aim of well flushing is fulfilled. After well flushing is finished, stopping water injection, closing a valve on the main water pipe, opening a valve of the waterproof well pipe part, injecting water into the well through an opening of the waterproof well pipe part, diffusing groundwater into a soil layer through the recharging well water filtering pipe, achieving the purpose of recharging, and simultaneously releasing pressure by opening the valve on the main water pipe under the condition of overlarge recharging pressure.
The invention has the advantages that: the invention has simple operation, the recharging well needs to be pumped when the recharging well is lifted, suspended matters attached to the well wall are flushed down by water flow and taken away along with the pumping, but the water level around the well is often reduced in the pumping process, and soil is compressed and settled, so the control requirement on the lifting pumping is very strict, and the operation is complex. According to the invention, no water pumping equipment is required to be installed, water is pumped into the well in the pumping process, the peripheral water level of the recharging well is prevented from dropping, the operation is simple, the influence on the environment is small, and the effect is reliable. The invention enlarges the pore space between the upper watertight solid pipe well wall and the outer side wall, can ensure the reliability of the backfill water-stopping material, and further greatly improves the recharging pressure which can be born by the recharging well.
Drawings
Figure 1 is a schematic diagram of a first embodiment of a recharging well with a drainage structure according to the present invention.
Figure 2 is a schematic diagram of a second embodiment of a recharging well with a drainage structure according to the present invention.
Fig. 3 is a schematic diagram of a drainage interlayer and a water inlet pipe distribution of a recharging well with a drainage structure according to the present invention.
Wherein 1 is a watertight well pipe part, 2 is a water filtering pipe part, 2-1 is an inner layer water filtering pipe, 2-2 is an outer layer water filtering pipe, 3 is a water filtering interlayer, 4 is a water inlet pipe, 5 is a main water pipe, 6 is a filter material, and 7 is a water material.
Detailed Description
Examples: as shown in fig. 1 to 3, a recharging well with a drainage structure is characterized in that it comprises a water-impermeable well pipe section 1 and a drainage pipe section 2; the upper part of the water filtering pipe part 2 is connected with the water-proof well pipe part 1, and the inner part of the water filtering pipe part 2 is communicated with the water-proof well pipe part 1; the wall of the water filtering pipe part 2 is provided with a water filtering interlayer 3, and the water filtering interlayer 3 is communicated with a water inlet pipe 4; the diameter of the water impermeable well pipe part 1 is smaller than the diameter of the filter pipe part 2.
The water filtering pipe part 2 is of a double-layer structure, and the water filtering interlayer 3 is positioned between the inner water filtering pipe 2-1 and the outer water filtering pipe 2-2 of the water filtering pipe part 2.
The water filtering interlayer 3 is communicated with a plurality of evenly distributed water inlet pipes 4, the top ends of the water inlet pipes 4 are converged to a main water pipe 5, and a valve B is arranged on the main water pipe 5.
The inner layer water filtering pipe 2-1 adopts a wire winding water filtering pipe, and the outer layer water filtering pipe 2-2 adopts a bridge type water filtering pipe.
The main water pipe 5 is arranged inside the water-impermeable well pipe part 1 (see fig. 1) or outside the water-impermeable well pipe part 1 (see fig. 2) and extends out of the ground.
The outside of the water filtering pipe part 2 is backfilled with a filter material 6, and the outside of the water-proof well pipe part 1 is backfilled with a water stopping material 7.
The watertight well pipe part 1 is provided with a valve a.
The distance between the outer wall of the water filtering pipe and the hole wall is not less than 100mm.
The diameter and the aperture of the recharging well water filtering pipe can be changed according to design requirements, the outer diameter of a water-impermeable well pipe part connected with the upper part of the water filtering pipe can be changed, the gap between the outer wall and the wall of the well pipe is increased by reducing the diameter of the well pipe, and the outer diameter of the upper well pipe can be selected according to the recharging amount and is generally set to be about 50-100 mm. After the backfilling of the filter material at the position corresponding to the water filtering pipe at the lower part is completed, the water stopping material is backfilled at the position corresponding to the well pipe at the upper part, so that the backfilling to a preset depth can be ensured, the backfilling is ensured to be compact, and the water stopping effect is ensured.
On the basis of the deep understanding of the blocking mode of the recharging well pipe, suspended impurities in water can be attached to the inner wall of the filter pipe in the normal recharging process, so that the porosity of the filter pipe of the recharging well is reduced, and the recharging amount is reduced. The recharging well adopts a double-layer structure based on the invention. The positions corresponding to the water filtering pipes are of the same material, and are made into double layers, and the distance between the inner layer and the outer layer is controlled to be about 50 mm. 4 water inlet pipes are arranged at the 90-degree position outside the inner wall of the well pipe, the pipe diameter is 20mm, continuous holes are formed in the pipe wall, the 4 water inlet pipes are converged to a main water pipe with the diameter of 25mm at the top end of the water filtering pipe, and the main water pipe can be arranged inside the water inlet pipe or outside the water inlet pipe and extend out of the ground. In the recharging process, once the recharging well is found to be blocked, the recharging quantity is reduced, the well wall pipe can be filled with water, the well wall is backwashed through water flow, suspended matters attached to the well wall are flushed, the water inlet pipe is opened while flushing, the water flow carries the suspended matters to reversely flow out from the water inlet pipe under the action of flushing water pressure, and the water flow flushing is carried out, so that the well wall flushing is realized, the loss of underground water is avoided, and adverse effects on the surrounding environment due to the loss of underground water are avoided. The backwash time of the recharging well structure is relatively free, and the operation is simple.
The working procedure of this embodiment is: in the recharging process, impurities in water can be gradually attached to the inner wall of the water filtering pipe part 2, so that the recharging amount is gradually reduced, the recharging pressure is gradually increased, after the recharging amount reaches a preset control standard, water injection through the impermeable well pipe part 1 is stopped, a valve B on the main water pipe 5 is opened, water is pressurized in a well through the main water pipe 5, and under the action of water flow, the impurities attached to the well wall are carried out from the impermeable well pipe part 1, so that the backwashing effect is achieved, pumping is not needed in the process, the adverse effect on the surrounding environment caused by additional sedimentation due to the reduction of the pumping water level is eliminated, and the whole recharging process can be periodically backwashed according to the recharging condition, so that the recharging is ensured to be smoothly carried out.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (4)
1. A recharging well with a drainage structure, characterized in that it comprises a watertight well pipe part and a drainage pipe part; the upper part of the water filtering pipe part is connected with the water-proof well pipe part, and the inside of the water filtering pipe part is communicated with the water-proof well pipe part; the pipe wall of the water filtering pipe part is provided with a water filtering interlayer which is communicated with the water inlet pipe; the water filtering pipe part is of a double-layer structure, and the water filtering interlayer is positioned between an inner layer water filtering pipe and an outer layer water filtering pipe of the water filtering pipe part; the water filtering interlayer is communicated with a plurality of evenly distributed water inlet pipes, the top ends of the water inlet pipes are converged to a main water pipe, and a valve is arranged on the main water pipe; the inner layer of the filter pipe adopts a wire winding filter pipe, and the outer layer of the filter pipe adopts a bridge filter pipe; the main water pipe is arranged in the watertight well pipe part or outside the watertight well pipe part and extends out of the ground; and the outside of the water filtering pipe part is backfilled with a filter material, and the outside of the watertight well pipe part is backfilled with a water stopping material.
2. A recharging well with a drainage structure according to claim 1, wherein the diameter of the water impermeable well pipe section is smaller than the diameter of the drainage pipe section.
3. A recharging well with a drainage structure according to claim 1, wherein the water impermeable well pipe section is provided with a valve.
4. A recharging well with a water filtering structure according to claim 1, wherein the distance between the outer wall of the water filtering pipe and the wall of the well is not less than 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910035670.XA CN109629586B (en) | 2019-01-15 | 2019-01-15 | Recharging well with water filtering structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910035670.XA CN109629586B (en) | 2019-01-15 | 2019-01-15 | Recharging well with water filtering structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109629586A CN109629586A (en) | 2019-04-16 |
| CN109629586B true CN109629586B (en) | 2024-02-06 |
Family
ID=66060932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910035670.XA Active CN109629586B (en) | 2019-01-15 | 2019-01-15 | Recharging well with water filtering structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109629586B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296541B (en) * | 2019-05-10 | 2020-08-14 | 湖南达道新能源开发有限公司 | Double-well recharge geothermal exploitation well |
| CN110820850A (en) * | 2019-11-08 | 2020-02-21 | 重庆市二零八工程勘察设计院有限公司 | Karst falling cavity side wall water taking system and water taking method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201367577Y (en) * | 2008-12-30 | 2009-12-23 | 上海长凯岩土工程有限公司 | Groundwater recharge well |
| CN103741671A (en) * | 2014-01-22 | 2014-04-23 | 上海长凯岩土工程有限公司 | Groundwater recharge system structure for foundation pit dewatering |
| CN104594325A (en) * | 2015-01-13 | 2015-05-06 | 济南轨道交通集团有限公司 | Quaternary micro-confined water spring protection type recharging well and method |
| JP2018009298A (en) * | 2016-07-11 | 2018-01-18 | 鹿島建設株式会社 | Ground water level lowering system and method of constructing the same |
| CN209873835U (en) * | 2019-01-15 | 2019-12-31 | 上海长凯岩土工程有限公司 | Novel recharge well structure |
-
2019
- 2019-01-15 CN CN201910035670.XA patent/CN109629586B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201367577Y (en) * | 2008-12-30 | 2009-12-23 | 上海长凯岩土工程有限公司 | Groundwater recharge well |
| CN103741671A (en) * | 2014-01-22 | 2014-04-23 | 上海长凯岩土工程有限公司 | Groundwater recharge system structure for foundation pit dewatering |
| CN104594325A (en) * | 2015-01-13 | 2015-05-06 | 济南轨道交通集团有限公司 | Quaternary micro-confined water spring protection type recharging well and method |
| JP2018009298A (en) * | 2016-07-11 | 2018-01-18 | 鹿島建設株式会社 | Ground water level lowering system and method of constructing the same |
| CN209873835U (en) * | 2019-01-15 | 2019-12-31 | 上海长凯岩土工程有限公司 | Novel recharge well structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109629586A (en) | 2019-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109629586B (en) | Recharging well with water filtering structure | |
| CN107326918B (en) | Hidden type plugging impervious water collecting well penetrating through raft plates and construction process thereof | |
| CN107386307B (en) | Anti-floating system of structure in foundation pit and construction method thereof | |
| CN107794954B (en) | Anti-floating water leakage pressure relief structure | |
| CN110439015B (en) | Precipitation well structure with clear hole function | |
| CN109723071B (en) | Construction method of double-layer steel drum drainage system built in basement floor post-cast strip | |
| CN114032936A (en) | Two-stage plugging construction method for large-water-yield dewatering well | |
| JP3307729B2 (en) | Stratified pumping system and well with the same | |
| CN209873835U (en) | Novel recharge well structure | |
| CN217352790U (en) | Filter layer drain pipe for supporting structure | |
| JP6040552B2 (en) | Groundwater level lowering method and system using vacuum deep well | |
| CN210564365U (en) | Novel crowded native pore-forming of compound sand control drainage relief well device | |
| CN203213129U (en) | Controllable non-return drainer | |
| CN110878557B (en) | Layered bidirectional drainage method for foundation pit dewatering | |
| CN110629776B (en) | Foundation pit dewatering well with backwashing function and backwashing method thereof | |
| CN112664207A (en) | Advanced pre-reinforcement method for tillite layer tunnel | |
| CN113089699A (en) | Anti-filtration well surrounding system and piping processing method | |
| CN108824465B (en) | Foundation pit engineering dewatering construction structure and construction method | |
| CN111705825A (en) | Drainage and landing permanent-temporary integrated construction method for underground deep foundation pit | |
| CN218813824U (en) | Foundation pit plugging device | |
| CN218970051U (en) | Pipe well structure under full operating mode condition | |
| CN218292043U (en) | Pressurizing recharge well structure | |
| CN218970053U (en) | Reverse filtering device for retaining wall drainage | |
| CN219909016U (en) | Foundation pit side wall leakage treatment device | |
| CN219862901U (en) | Disposable plugging device of underground spring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |