CN208650076U - A kind of dewatering well waterborne is at well construction structure - Google Patents
A kind of dewatering well waterborne is at well construction structure Download PDFInfo
- Publication number
- CN208650076U CN208650076U CN201821245147.7U CN201821245147U CN208650076U CN 208650076 U CN208650076 U CN 208650076U CN 201821245147 U CN201821245147 U CN 201821245147U CN 208650076 U CN208650076 U CN 208650076U
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- China
- Prior art keywords
- well
- chimney filter
- pipe
- downcast
- water body
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Abstract
The utility model discloses a kind of dewatering wells waterborne into well construction structure, it is related to dewatering well waterborne into well construction field, aim to solve the problem that the problem of surface water body pours in downcast well pipe, its key points of the technical solution are that including sequentially passing through surface water body, Muddy Bottoms clay layer and extending to downcast well pipe in water-bearing layer, the filtrate that the top stretching surface water body of the downcast well pipe further includes the chimney filter being arranged in downcast well pipe and is placed between downcast well pipe and chimney filter；The top of the chimney filter extends to Muddy Bottoms clay layer, bottom end to water-bearing layer, the chimney filter top is connected with real pipe, reality tube top end stretching surface water body is simultaneously equal with downcast well pipe top, the downcast well pipe is externally provided with the shield bucket with downcast well pipe coaxial line, the shield bucket bottom end is threaded through in Muddy Bottoms clay layer, surface water body is stretched out on top, has reached and surface water body is effectively prevent to pour in the beneficial effect in dewatering well.
Description
Technical field
The utility model relates to dewatering wells into well construction field, more specifically, it relates to a kind of dewatering well Cheng Jing waterborne
Constructing structure.
Background technique
Structures in ground under water, such as tunnel need to control underground water head there are when water-bearing layer in ground
Problem, i.e. groundwater level problem, the problem of groundwater of underwater geotechnical engineering is solved using the dewatering well of over-water construction, can be with
Guarantee engineering safety, project cost can also be greatlyd save.
When over-water construction, working environment can be divided into surface water body, Muddy Bottoms clay layer and water-bearing layer three parts, and Muddy Bottoms are glutinous
Soil layer belongs to aquiclude, refers to the rock stratum that those permeability are mutually on duty, and the water that can pass through this aquiclude is insignificant,
It is considered as water barrier, which can effectively obstruct direct supply of the surface water body to lower part water-bearing layer.But
Surface water body can pour in dewatering well in the construction process, have an impact to construction, and surface water body how to be effectively prevent to pour in drop
It is a problem for nowadays needing to solve in well.
Utility model content
In view of the deficiencies of the prior art, the purpose of this utility model is to provide a kind of dewatering wells waterborne into well construction knot
Structure, the advantage is that can effectively prevent surface water body to pour in dewatering well.
To achieve the above object, the utility model provides following technical solution:
A kind of dewatering well waterborne is at well construction structure, including sequentially passes through surface water body, Muddy Bottoms clay layer and extend to
Surface water body is stretched out on the top of downcast well pipe in water-bearing layer, the downcast well pipe, further includes being arranged in downcast well pipe
Chimney filter and the filtrate being placed between downcast well pipe and chimney filter, the top of the chimney filter extend to Muddy Bottoms clay layer, bottom end extremely
Water-bearing layer, the chimney filter top are connected with real pipe, and surface water body and, institute equal with downcast well pipe top are stretched out in the reality tube top end
It states downcast well pipe and is externally provided with shield bucket with downcast well pipe coaxial line, the shield bucket bottom end is threaded through in Muddy Bottoms clay layer, top
Stretch out surface water body.
By using above-mentioned technical proposal, Muddy Bottoms clay layer can obstruct surface water body and pour in water-bearing layer, shield bucket barrier ground
Table water body pours in downcast well pipe, meanwhile, the water in real pipe barrier shield bucket and downcast well pipe gap pours in chimney filter, to be precipitation
Well construction provides primary condition.
The utility model is further arranged to, and the sediment tube of coaxial line, the filter are fixedly connected with below the chimney filter
Pipe inside radius is equal with the sediment tube inside radius, and the chimney filter outer radius is less than sediment tube outer radius.
By using above scheme, during drainage, inevitably having tiny silt cannot be filtered filtrate, precipitating
Pipe can settle the silt collected and poured in from chimney filter, and the wall thickness of sediment tube is greater than the wall thickness of chimney filter, increases sediment tube itself
Mechanical strength can more preferably bear water-bearing layer to the pressure of sediment tube, while sediment tube can better play carrying to chimney filter
Effect.
The utility model is further arranged to, and the shield bucket bottom end is provided with downwardly projecting relieving block, the drag reduction
Block is the triangle of pointed end in the section of vertical direction.
By using above scheme, during protecting bucket and shaking into Muddy Bottoms clay layer, with depth increase shield bucket by
The resistance arrived is bigger, and the tip of relieving block first contacts Muddy Bottoms clay layer, can reduce the resistance that shield bucket is subject to, convenient for shield bucket shake
Enter Muddy Bottoms clay layer.
The utility model is further arranged to, and the top of the shield bucket, which circumferentially extends outwardly, is equipped with annular loading plate,
The annular loading plate and shield bucket coaxial line.
By using above scheme, annular loading plate can using vibrator will protect bucket shake into underwater clay layer when, shield
Bucket is more uniformly stressed, and is prevented from shaking and is protected bucket run-off the straight into during.
The utility model is further arranged to, and the bucket outer wall that the shield bucket extends in Muddy Bottoms clay layer, which protrudes above, to be set
It is equipped with pairs of balancing pole, the balancing pole is along shield bucket radial symmetric setting.
By using above scheme, pairs of balance plate makes shield bucket keep balance after shaking Muddy Bottoms clay layer, will not
Run-off the straight.
The utility model is further arranged to, and the balancing pole is at least two pairs, and each pair of balancing pole is in different height
Horizontal plane on and balancing pole on adjacent level face offset angular it is identical.
By using above scheme, the balancing pole being arranged on the horizontal plane of different height pair, and on adjacent level face
Balancing pole offset angular it is identical, can allow balancing pole Muddy Bottoms clay layer stress more evenly, make protect bucket obtain preferably
Balanced action.
The utility model is further arranged to, and the real pipe is equipped with circumferential band with chimney filter junction, and the circumferential band is opened
It is equipped with a pair of of convex block at mouthful, fastening bolt is equipped between two convex blocks, the fastening bolt is revolved far from one end of bolt head
There is fastening nut.
By using above scheme, is detachably connected between real pipe and chimney filter, it can be according to the depth of surface water body and required
The aqueous layer depth of insertion selects the real pipe and chimney filter of suitable length, by screwing fastening nut, and then makes circumferential band by chimney filter
It is fastenedly connected with real pipe.
The utility model is further arranged to, and ring-shaped rubber pad is equipped on the inside of the circumferential band.
By using above scheme, ring-shaped rubber pad increases the frictional force between circumferential band and real pipe, chimney filter, reinforces real pipe
Fastening effect between chimney filter.
The utility model is further arranged to, and the partial size of filler particles from top to bottom gradually becomes smaller in the filtrate.
By using above scheme, water-bearing layer is more downward, and pressure is bigger, and sandy soil are also bigger to the extruding force of downcast well pipe,
Sandy soil pour in chimney filter by extruding force in order to prevent, reduce the size of filtrate filler, can stop the biggish sandy soil of extruding force,
Improve filter effect.
In conclusion the utility model has the following beneficial effects:
1, surface water body can be obstructed using Muddy Bottoms clay layer and pour in water-bearing layer, pass through setting shield bucket and real pipe, Ke Yiyou
Effect blocks surface water body, provides primary condition for precipitation well construction；
2, by the way that annular loading plate and balance plate is arranged, during allowing shield bucket to shake Muddy Bottoms clay layer respectively and shake into
After Muddy Bottoms clay layer, keep vertical, not run-off the straight；
3, the partial size of filler particles from top to bottom gradually becomes smaller in the filtrate, as aqueous layer depth increases, can hinder
The biggish sandy soil of extruding force are kept off, filter effect is improved；
4, it is detachably connected between real pipe and chimney filter, it can be according to the depth of surface water body and the aqueous layer depth of required insertion
Degree selects the real pipe and chimney filter of suitable length.
Detailed description of the invention
Fig. 1 is the construction environment figure of embodiment；
Fig. 2 is the schematic perspective view of embodiment；
Fig. 3 is the cross-sectional view of embodiment；
Fig. 4 is for embodying the enlarged drawing in Fig. 3 at A；
Fig. 5 is the cross-sectional view of downcast well pipe, chimney filter, sediment tube in water-bearing layer in embodiment；
Fig. 6 is the structural schematic diagram managed in fact in embodiment with chimney filter junction.
In figure: 1, downcast well pipe；2, chimney filter；3, filtrate；4, bucket 5 is protected；Real pipe, 6, balancing pole one；7, balancing pole two；8, ring
Shape hoop；9, fastening bolt；10, fastening nut；11, through-hole；12, annular loading plate；13, relieving block；14, sediment tube；15, bolt
Head；16, ring-shaped rubber pad；17, screw thread；18, balancing pole；19, surface water body；20, Muddy Bottoms clay layer；21, water-bearing layer；22,
Workboat；23, loop wheel machine；24, drilling machine；25, at well platform；26, convex block.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Embodiment: a kind of dewatering well waterborne is at well construction structure, as shown in Figure 1, including sequentially passing through surface water body 19, becoming silted up
Shale clay layer 20 simultaneously extends to the downcast well pipe 1 in water-bearing layer 21, and surface water body 19 is stretched out on the top of downcast well pipe 1, also
Including the chimney filter 2 being arranged in downcast well pipe 1 and the filtrate 3 being placed between downcast well pipe 1 and chimney filter 2；The top of chimney filter 2
End extends to Muddy Bottoms clay layer 20, bottom end to water-bearing layer 21, and 2 top of chimney filter is connected with real pipe 5, and surface water is stretched out on real 5 top of pipe
Body 19 is simultaneously equal with 1 top of downcast well pipe, and downcast well pipe 1 is externally provided with the shield bucket 4 with 1 coaxial line of downcast well pipe, and shield 4 bottom end of bucket is worn
It is located in Muddy Bottoms clay layer 20, surface water body 19 is stretched out on top.
As shown in Figures 2 and 3, the bucket outer wall that extends in Muddy Bottoms clay layer 20 of shield bucket 4 protrude above be provided with it is several at
Pair balancing pole 18, the utility model is preferably two pairs, and balancing pole 18 divides for balancing pole 1 and balancing pole 27, balancing pole 1
All it is arranged along shield bucket radial symmetric with balancing pole 27 in different horizontal planes, balancing pole 1 and balancing pole 27, and balancing pole
One 6 is identical with the offset angular of 27 adjacent stems of balancing pole, is all 90 °, and it is glutinous into Muddy Bottoms that such setting can be such that shield bucket 4 shakes
Balance is kept after soil layer 20, will not be tilted.
As shown in figure 3, the top of shield bucket 4, which circumferentially extends outwardly, is equipped with annular loading plate 12, annular loading plate 12 and shield
Bucket 4 coaxial lines, using vibrator (not shown) will protect bucket 4 shake in Muddy Bottoms clay layer 20 when, annular loading plate 12
Area is more much bigger than the upper surface area for protecting bucket 4, can increase vibrator and protect the contact area of bucket 4, makes to protect what bucket 4 was subject to
Shaking force is more uniform, prevents during shaking, and protects 4 run-off the straight of bucket.
As shown in figure 3, shield 4 bottom end of bucket has downwards protrusion to be provided with relieving block 13, the section of 13 vertical direction of relieving block is
The triangle (see figure 4) of pointed end；During shield bucket 4 shakes into Muddy Bottoms clay layer 20, as bucket 4 is protected in the increase of depth
The resistance being subject to is bigger, and the tip of relieving block 13 first contacts Muddy Bottoms clay layer 20, can reduce the resistance that shield bucket 4 is subject to, just
It shakes in shield bucket 4 into Muddy Bottoms clay layer 20.
As shown in figure 5, the sediment tube 14 of coaxial line is fixedly connected with below chimney filter 2,2 inside radius of chimney filter and the sediment tube
14 inside radius is equal, and 2 outer radius of chimney filter is less than the outer radius of sediment tube 14, and for filtrate 3 during drainage, tiny silt is not
It can be filtered, sediment tube 14 can settle the silt collected and poured in from chimney filter 2, and the wall thickness of sediment tube 14 is greater than the wall of chimney filter 2
Thickness increases the mechanical strength of sediment tube 14 itself, can more preferably bear water-bearing layer 21 to the pressure of sediment tube 14, precipitate simultaneously
Pipe 14 can better play carrying effect to chimney filter 2.
As shown in figure 5, the packing material size in filtrate 3 is gradually reduced from top to bottom, because with the increasing of 21 depth of water-bearing layer
Adding, silt can become larger to the extruding force of downcast well pipe 1, and more silts are pressed against outside filtrate 3, and packing material size is smaller in filtrate 3,
It can stop more silts, improve water filtration efficiency.
As shown in fig. 6, chimney filter 2 and real pipe 5 are detachably connected, junction is fastenedly connected by circumferential band 8, and circumferential band 8 is opened
It is projected radially outward at mouthful and is provided with convex block 26, two convex blocks 26 are equipped with the through-hole 11 that fastening bolt 9 can be allowed to pass through, fastening bolt
Side far from bolt head 15 is milled with screw thread 17, and fastening nut 10 is tightened in fastening bolt 9, makes 8 banding chimney filter 2 of circumferential band and reality
Pipe 5；Chimney filter 2 and real pipe 5 are detachably connected, and can be selected according to the depth of surface water body 19 and 21 depth of water-bearing layer of required insertion
The real pipe 5 and chimney filter 2 of suitable length are selected, convenient for working in the environment of the various depth of waters；Annular rubber is equipped on the inside of circumferential band 8 simultaneously
Rubber mat 16 can effectively increase the frictional force between circumferential band 8 and real pipe 5, chimney filter 2, keep real pipe 5 and 2 connection effect of chimney filter more preferable,
It is not easily to fall off, and certain waterproof action can be played.
Work progress: installing loop wheel machine 23 on workboat 22, using on ship loop wheel machine 23 and vibrator shield bucket 4 shaken into silt
In shale argillic horizon 20, surface water body 19 can be effectively blocked in this way, primary condition is provided for precipitation well construction, then in ship
A drilling platforms 25 is built on only, using 24 pore-forming of drilling machine, then according to the technique Cheng Jing of land.
Claims (9)
1. a kind of dewatering well waterborne is at well construction structure, including sequentially passes through surface water body (19), Muddy Bottoms clay layer (20) simultaneously
The downcast well pipe (1) in water-bearing layer (21) is extended to, the top of the downcast well pipe (1) stretches out surface water body (19), further includes
It is arranged in the chimney filter (2) in downcast well pipe (1) and the filtrate (3) being placed between downcast well pipe (1) and chimney filter (2), it is special
Sign is: the top of the chimney filter (2) extends to Muddy Bottoms clay layer (20), bottom end to water-bearing layer (21), chimney filter (2) top
It is connected with real pipe (5), surface water body (19) and equal with downcast well pipe (1) top, the precipitation is stretched out on real pipe (5) top
Well casing (1) is externally provided with and the shield bucket (4) of downcast well pipe (1) coaxial line, and shield bucket (4) bottom end is threaded through Muddy Bottoms clay layer
(20) in, surface water body (19) are stretched out on top.
2. dewatering well waterborne according to claim 1 is at well construction structure, it is characterised in that: solid below the chimney filter (2)
Surely it is connected with the sediment tube (14) of coaxial line, chimney filter (2) inside radius is equal with the sediment tube (14) inside radius, the filter
It manages (2) outer radius and is less than sediment tube (14) outer radius.
3. dewatering well waterborne according to claim 1 is at well construction structure, it is characterised in that: shield bucket (4) bottom end is set
It is equipped with downwardly projecting relieving block (13), the relieving block (13) is the triangle of pointed end in the section of vertical direction.
4. dewatering well waterborne according to claim 3 is at well construction structure, it is characterised in that: the top of shield bucket (4)
Circumferentially extend outwardly and is equipped with annular loading plate (12), the annular loading plate (12) and shield bucket (4) coaxial line.
5. dewatering well waterborne according to claim 4 is at well construction structure, it is characterised in that: the shield bucket (4) extends in
Bucket outer wall in Muddy Bottoms clay layer (20), which protrudes above, to be provided with pairs of balancing pole (18), and the balancing pole (18) is along shield bucket
(4) radial symmetric is arranged.
6. dewatering well waterborne according to claim 5 is at well construction structure, it is characterised in that: the balancing pole (18) is at least
It is two pairs, each pair of balancing pole (18) is in the staggered angle of the balancing pole (18) on the horizontal plane of different height and on adjacent level face
It spends identical.
7. dewatering well waterborne according to claim 1 is at well construction structure, it is characterised in that: the real pipe (5) and chimney filter
(2) junction is equipped with circumferential band (8), and circumferential band (8) opening has projected radially outward a pair of of convex block (26), described in two
Convex block (26) is equipped with fastening bolt (9) by through-hole 11, and the fastening bolt (9) is screwed with fastening far from the one end of bolt head (15)
Nut (10).
8. dewatering well waterborne according to claim 7 is at well construction structure, it is characterised in that: the circumferential band (8) it is interior
Side is equipped with ring-shaped rubber pad (16).
9. dewatering well waterborne according to claim 1 is at well construction structure, it is characterised in that: filler in the filtrate (3)
The partial size of particulate material from top to bottom gradually becomes smaller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821245147.7U CN208650076U (en) | 2018-08-02 | 2018-08-02 | A kind of dewatering well waterborne is at well construction structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821245147.7U CN208650076U (en) | 2018-08-02 | 2018-08-02 | A kind of dewatering well waterborne is at well construction structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208650076U true CN208650076U (en) | 2019-03-26 |
Family
ID=65788458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821245147.7U Expired - Fee Related CN208650076U (en) | 2018-08-02 | 2018-08-02 | A kind of dewatering well waterborne is at well construction structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208650076U (en) |
-
2018
- 2018-08-02 CN CN201821245147.7U patent/CN208650076U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190326 Termination date: 20190802 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |