CN209483312U - A kind of small-bore test well construction for environmental hydrogeology - Google Patents
A kind of small-bore test well construction for environmental hydrogeology Download PDFInfo
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- CN209483312U CN209483312U CN201822151480.8U CN201822151480U CN209483312U CN 209483312 U CN209483312 U CN 209483312U CN 201822151480 U CN201822151480 U CN 201822151480U CN 209483312 U CN209483312 U CN 209483312U
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Abstract
The utility model discloses a kind of small-bore test well constructions for environmental hydrogeology, including the steel tube well and fillter section using tripping in 108mm or 133mm diameter after hydrogeologic drilling pore-forming, tube bottom blocks, and fillter section annular gap inserts rubble and clay, carries out hydrogeological test after cleaning.It is designed relative to conventional water supply well construction, the utility model is mainly the size for reducing drilling hole and steel tube well, utilize the construction of the achievable well of sling height and weight of hydrologic drill itself, it accelerates construction progress and reduces engineering cost, fillter section is directly manufactured using the solderability of steel pipe simultaneously, it is easy for construction.
Description
Technical field
The utility model relates to environmental hydrogeology fields, and in particular to a kind of structure of small-bore test well.
Background technique
Geology Drilling structure is more complicated than general geotechnical boring, in addition to meeting coring requirement, it is necessary to meet and take out
The requirement of water test and water intaking.Conventionally used for the hydrology general 500~600mm of bore diameter of drilling of water supply, lower going-into-well pipe diameter
General 219~273mm, in order to smoothly can carry out hydrogeological test by tripping in sewage pump, and apply man-hour requirement and hang
The construction of well is completed in vehicle cooperation.When carrying out environmental hydrogeology probing and test, the construction of discovery large-diameter well and test, efficiency
Lower and high expensive.
Utility model content
The purpose of this utility model is that being directed to above-mentioned the problems of the prior art, a kind of setting for small-bore test well is provided
Structure is counted, the size of drilling hole and steel tube well is mainly reduced, it is high using the lifting of hydrologic drill itself after size reduces
The construction of degree and the achievable well of weight accelerates construction progress and reduces engineering cost, while direct using the solderability of steel pipe
Processing and fabricating journey fillter section is not required to individually purchase filter, easy for construction.
The utility model solve technical solution used by its technical problem it is characterized in that:
A kind of small-bore test well construction for environmental hydrogeology, including the hydrogeology being arranged on ground stratum
The steel tube well for drilling and being arranged in Geology Drilling；In steel tube well tripping in Geology Drilling, bottom is reserved in steel tube well
Filtration hole is arranged the above are fillter section in precipitating phase, precipitating phase on the steel tube well outer wall of fillter section, fillter section water level located underground with
Under；Annular gap lower part investment filtering rubble between Geology Drilling and the steel tube well borehole wall, clay is inserted at top；Steel tube well
Bottom is provided with back cover, and top, which is provided with, binds.
220~the 320mm of Geology Drilling diameter.
The steel tube well diameter is 108mm or 133mm.
Described binds using internal thread plug matched with steel tube well.
50cm above ground level at the top of the steel tube well.
The filtration hole is uniformly arranged on steel tube well outer wall.
The fillter section makes filtration hole using cutting machine or electric welding machine, and filtration hole is opening length on steel tube well
The linear structure of 20cm, wide 2~4mm, linear arranged for interval, the drainage hole site of adjacent two column are staggered from top to bottom.
The filtering ballast grain sizes should be in 5~12mm.
General 2~the 4m of clay thickness, and more than water level line located underground.
The length of the precipitating phase is 3~6m.
The utility model has the technical effect that
The utility model designs a kind of small-bore test well construction for environmental hydrogeology, designs Geology Drilling
220~320mm of aperture, for tripping in steel tube well having a size of 108mm or 133mm, steel tube well uses same size from top to bottom, utilizes
Pipe well makes fillter section, and fillter section can direct processing and fabricating at the scene.Small-bore test well meet environmental hydrogeology test,
It is lauched the demand of water quality and water level monitoring, saves the drilling operation time, it is easy for construction, reduce accordingly into the use of well material
Amount, reduces project cost.
Detailed description of the invention
The small-bore test well structural schematic diagram of Fig. 1 the utility model；
The fillter section structural schematic diagram of the small-bore test well of Fig. 2 the utility model；
In attached drawing: 1- Geology Drilling；2- steel tube well；3- precipitating phase；4- fillter section；5- level of ground water mark；6- mistake
Filter rubble；7- clay；8- underseal；9- closedtop；10- ground stratum；11- filtration hole.
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings.
Referring to Fig. 1, Fig. 2, the utility model is a kind of small-bore test well construction for environmental hydrogeology, including is set
Set the Geology Drilling 1 on ground stratum 10；Tripping in steel tube well 2 in Geology Drilling 1, bottom is reserved in steel tube well 2
Filtration hole 11 is arranged the above are fillter section 4 in precipitating phase 3, precipitating phase 3 on 2 outer wall of steel tube well of fillter section 4, fillter section 4 is located at
Below level of ground water 5；Annular gap lower part investment filtering rubble 6 between 2 borehole wall of Geology Drilling 1 and steel tube well, top
Insert clay 7；Steel pipe bottom is provided with back cover 8, and top, which is provided with, binds 9.
1 220~320mm of diameter of Geology Drilling.2 diameter of steel tube well is 108mm or 133mm.Bind 9 uses and steel pipe
The matched internal thread plug of well 2.2 top 50cm above ground level of steel tube well.Filtration hole 11 is uniformly arranged on 2 outer wall of steel tube well.
It is illustrated in conjunction with specific embodiment of the Fig. 1 to the utility model:
Step 1: processing and fabricating completes fillter section and the well casing with underseal；
Step 2: it is related at well material to prepare well casing, rubble, clay ball, water pump, cable, rope, closedtop inner screw plug etc.,
The reasonable placement near default construction location；
Step 3: drilling machine is in place, completes hydrogeologic drilling by setting bore diameter and depth parameter；
Step 4: sling the drilling of the well casing tripping in underseal with drilling machine, when top surface 50cm above ground level fixed well casing, lifting
Fillter section is aligned with well casing, keeps fillter section and well casing on the same line, is welded to connect, after the completion again down toward above ground level
It is fixed when 50cm, continues to connect top well casing, successively welding is completed, final stage band external fiber tube head 50cm above ground level；
Step 5: it is consistent with drill center to sling well casing adjustment well casing center；
Step 6: fixed well casing, annular gap investment filtering rubble, filtering rubble are slowly uniformly launched along well casing surrounding, until
It is predetermined to launch clay position, the clay ball handled in advance is slowly uniformly thrown to along well casing surrounding concordant with ground；
Step 7: water pump connecting cable and rope, slow tripping in pipe well bottom lift 1~2m again, and rope fixation fastens,
Open power supply pumping for water pump clean well mud, come water hour can be used flow backward water law cleaning, pour water cleaning use water source
It must be safe and reliable；When mud off is affected, when well-flushing difficulty, can utilize rod bit processing and fabricating piston, utilize drilling machine
Power is using drawing piston type well-flushing；Well-flushing is net to water sand removal；
Step 8: restoring to water level in well to original absolute altitude, carry out corresponding hydrogeological test；
Step 9: experiment is completed to extract water pump, keeps rope and cable well, installs closedtop additional using spanner；
Step 10: carrying out opening closedtop when water quality and water level monitoring, tripping in is fetched water accordingly and test equipment, pacifies after the completion
Fill closedtop.
The diameter of the steel tube well and fillter section is 108mm or 133mm, on the market easily buying.The length of the fillter section
It is traditionally arranged to be 6m, can specifically be adjusted according to the depth and strata condition of well.
The fillter section makes filtration hole using cutting machine or electric welding machine, in the long 20cm of steel tube well upper opening, wide by 2~
4mm, arranged for interval, linear arrangement, adjacent two aperture positions should be staggered from top to bottom.4 setting of filtering can be in bottom
3 or more precipitating phase when level of ground water is higher, can be lifted up.
For the length of the precipitating phase generally depending on formation condition, 4~6m of length is arranged there are when sandy soils in water-bearing layer,
Except this general setting 3~4m of length.
The back cover uses and steel tube well is welded with the round iron plate of size.The ballast grain sizes should be in 5~12mm.Institute
General 2~the 4m of clay thickness is stated, and more than water level line located underground.The water pump is fresh water pump, and size should be less than steel tube well
Hole diameter, so as to smooth G.I.H.
The water pump is fresh water pump, and size should be less than the hole diameter of steel tube well, so as to smooth G.I.H.
The requirement that bore size should meet the smooth tripping in of well casing and annular gap rubble and clay are smoothly launched, pipe well size
The requirement of the smooth tripping in of water pump should be met, with the development of technology, in the case that water pump diameter becomes smaller, pipe well size has further
Reduced space.
It is described above.Only specific embodiment of the present utility model, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art in the technical scope of this practical new exposure, can readily occur in variation or
Replacement, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model is answered described with right
It is required that protection scope subject to.
Claims (10)
1. a kind of small-bore test well construction for environmental hydrogeology, it is characterised in that: including being arranged on ground stratum
(10) steel tube well (2) of Geology Drilling (1) and setting in Geology Drilling (1) on；Steel tube well (2) tripping in hydrology
In geotechnical boring (1), precipitating phase (3) are reserved in steel tube well (2) interior bottom, and the above are fillter section (4), fillter sections (4) for precipitating phase (3)
Steel tube well (2) outer wall on be arranged filtration hole (11), fillter section (4) water level located underground (5) is below；Geology Drilling (1)
Clay (7) are inserted at annular gap lower part investment filtering rubble (6) between steel tube well (2) borehole wall, top；Steel pipe bottom is set
Back cover (8) are equipped with, top is provided with bind (9).
2. the small-bore test well construction according to claim 1 for environmental hydrogeology, it is characterised in that: described
Geology Drilling (1) 220~320mm of diameter.
3. the small-bore test well construction according to claim 1 for environmental hydrogeology, it is characterised in that: described
Steel tube well (2) diameter is 108mm or 133mm.
4. the small-bore test well construction according to claim 1 for environmental hydrogeology, it is characterised in that: described
(9) are bound using the matched internal thread plug with steel tube well (2).
5. the small-bore test well construction according to claim 1 for environmental hydrogeology, it is characterised in that: described
50cm above ground level at the top of steel tube well (2).
6. the small-bore test well construction according to claim 1 for environmental hydrogeology, it is characterised in that: described
Filtration hole (11) is uniformly arranged on steel tube well (2) outer wall.
7. the small-bore test well construction according to claim 6 for environmental hydrogeology, it is characterised in that: described
For fillter section (4) using cutting machine or electric welding machine production filtration hole (11), filtration hole (11) is the long 20cm, width of being open on steel tube well
The linear structure of 2~4mm, linear arranged for interval, the drainage hole site of adjacent two column are staggered from top to bottom.
8. the small-bore test well construction according to claim 1 for environmental hydrogeology, it is characterised in that: described
Filtering rubble (6) partial size should be in 5~12mm.
9. the small-bore test well construction according to claim 1 for environmental hydrogeology, it is characterised in that: described
Clay (7) general 2~4m of thickness, and more than water level line located underground.
10. the small-bore test well construction according to claim 1 for environmental hydrogeology, it is characterised in that: described
Precipitating phase (3) length be 3~6m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822151480.8U CN209483312U (en) | 2018-12-20 | 2018-12-20 | A kind of small-bore test well construction for environmental hydrogeology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822151480.8U CN209483312U (en) | 2018-12-20 | 2018-12-20 | A kind of small-bore test well construction for environmental hydrogeology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209483312U true CN209483312U (en) | 2019-10-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822151480.8U Active CN209483312U (en) | 2018-12-20 | 2018-12-20 | A kind of small-bore test well construction for environmental hydrogeology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209483312U (en) |
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2018
- 2018-12-20 CN CN201822151480.8U patent/CN209483312U/en active Active
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