CN208219682U - A kind of ultra-deep foundation pit decompression of confined water well shut-in well structure - Google Patents
A kind of ultra-deep foundation pit decompression of confined water well shut-in well structure Download PDFInfo
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- CN208219682U CN208219682U CN201820692899.1U CN201820692899U CN208219682U CN 208219682 U CN208219682 U CN 208219682U CN 201820692899 U CN201820692899 U CN 201820692899U CN 208219682 U CN208219682 U CN 208219682U
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- foundation pit
- grouting pipe
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Abstract
The utility model discloses a kind of ultra-deep foundation pit decompression of confined water well shut-in well structures.It includes well casing, is equipped in base plate of foundation pit concrete layer and manages outer seal plate, well casing is fixed by seal plate outside pipe, Grouting Pipe is connected in well casing, well casing is under-filled melon seeds piece, constitutes melon seeds piece interval, and cement slurry is entered in well casing by Grouting Pipe, constitute cement slurry column, Grouting Pipe is extracted, the well casing for being located at cement slurry column top is cut off, welding setting iron plate on well casing nozzle, iron plate top filling concrete mortar is smoothed out to base plate of foundation pit concrete layer upper surface.The utility model in well by being inserted into and the matched well casing of well head size, and in the melon seeds piece of well casing underfill certain volume, and it is suitable for reading to well casing to inject cement slurry, well casing is suitable for reading after condensation uses iron plate welded closure, it is smoothed out with cement mortar to base plate of foundation pit concrete upper surface at the top of iron plate, shut-in well construction is completed, structure is simple, endurance is strong, plugging effect is good.
Description
Technical field
The utility model belongs to technical field of building construction, and in particular to a kind of ultra-deep foundation pit decompression of confined water well shut-in well knot
Structure.
Background technique
The precipitation work of artesian water is calculated by design and is constructed the top to burden pressure and underground flood peak in underground structure
It could stop precipitation after towing force.
Conventional well-filling techniques, the general way using filling yellow ground or under-filled yellow ground top fill concrete,
Some is even using the way of building waste substitution yellow ground.Normal practice is not close due to bonding with artesian well inner wall, causes to hold
Press waterborne overflow.If covering steel plate (i.e. cover board) and artesian well welding surface being small, weld seam environment is bad, and welding quality is not easy to guarantee,
It is easy that artesian water is caused to outflow, underplate concrete is caused to leak.
Utility model content
For the above-mentioned problems in the prior art, simple, envelope that the purpose of this utility model is to provide a kind of structures
The good ultra-deep foundation pit decompression of confined water well shut-in well structure of stifled effect.
A kind of ultra-deep foundation pit decompression of confined water well shut-in well structure, it is characterised in that including well casing, base plate of foundation pit is mixed
It is equipped in solidifying soil layer and manages outer seal plate, well casing is fixed by seal plate outside pipe, Grouting Pipe is connected in well casing, well casing is under-filled melon
Sub-pieces constitutes melon seeds piece interval, and cement slurry is entered in well casing by Grouting Pipe, constitutes cement slurry column, cuts cement slurry column top
Grouting Pipe cuts off the well casing for being located at cement slurry column top, welding setting iron plate, iron plate top filling concrete sand on well casing nozzle
Slurry is smoothed out to base plate of foundation pit concrete layer upper surface.
A kind of ultra-deep foundation pit decompression of confined water well shut-in well structure, it is characterised in that Grouting Pipe includes passing through Grouting Pipe
The Grouting Pipe upper section and Grouting Pipe lower section of connector connection, Grouting Pipe lower section is apart from well casing bottom 4-6m.
A kind of ultra-deep foundation pit decompression of confined water well is shunt in a well structure, it is characterised in that the height of melon seeds piece interval is
10-15m, Grouting Pipe lower section are inserted into melon seeds piece interval 6-9m.
A kind of ultra-deep foundation pit decompression of confined water well shut-in well structure, it is characterised in that well casing includes well head pipeline section and well
Interior pipeline section, well head pipeline section are located at iron plate above section, and well inner tube section is located at iron plate or less part, after the completion of the construction of cement slurry column,
The excision of well head pipeline section part.
A kind of ultra-deep foundation pit decompression of confined water well shut-in well structure, it is characterised in that the outer diameter and well of the outer seal plate of pipe
The diameter ratio of pipe is 2.3-2.5:1.
A kind of ultra-deep foundation pit decompression of confined water well shut-in well structure, it is characterised in that iron plate and base plate of foundation pit concrete
The spacing of layer upper surface is 9-12cm.
By using above-mentioned technology, compared with prior art, the beneficial effects of the utility model are as follows: the utility model is logical
Insertion and the matched well casing of well head size in well are crossed, and in the melon seeds piece of well casing underfill certain volume, and injects cement
, condensation after well casing suitable for reading iron plate welded closure suitable for reading to well casing is starched, is smoothed out at the top of iron plate with cement mortar mixed to base plate of foundation pit
Shut-in well construction is completed in solidifying soil upper surface, and structure is simple, endurance is strong, plugging effect is good.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: 1- well casing, 101- well head pipeline section, pipeline section in 102- well, 2- Grouting Pipe, 201- Grouting Pipe upper section, 202- note
Starch pipe lower section, 3- slip casting pipe connections, 4- base plate of foundation pit concrete layer, 5- cement mortar sealing layer, 6- melon seeds piece interval, 7- water
Mud column, 8- manage outer seal plate, 9- iron plate.
Specific embodiment
Below in conjunction with Figure of description, the utility model will be further described, but the protection scope of the utility model is simultaneously
It is not limited only to this:
The structure as shown in Figure 1, a kind of ultra-deep foundation pit decompression of confined water well of the utility model is shunt in a well, including well casing 1, foundation pit
It is equipped in underplate concrete layer 4 and manages outer seal plate 8, well casing 1 is fixed by seal plate 8 outside pipe, is connected with Grouting Pipe 2, well casing in well casing 1
1 it is under-filled have a melon seeds piece, constitute melon seeds piece interval 6, cement slurry is entered in well casing 1 by Grouting Pipe 2, and melon seeds piece is penetrated into part
In, so that melon seeds piece and cement slurry is frozen into cement slurry column 7, when continuing slip casting, cement slurry rises in well casing 1, shape after solidification
At cement slurry column 7, after slip casting, the Grouting Pipe 2 on 7 top of cement slurry column is cut, the well casing 1 at 7 top of cement slurry column will be located at
It cuts off, welding setting iron plate 9,9 top filling concrete mortar of iron plate are smoothed out to base plate of foundation pit concrete layer 4 on 1 nozzle of well casing
Surface.
For the ease of installation and removal, Grouting Pipe 2 is used segmental structure by the utility model, and the Grouting Pipe 2 includes logical
The Grouting Pipe upper section 201 and Grouting Pipe lower section 202 of the connection of slip casting pipe connections 3 are crossed, Grouting Pipe lower section 202 is apart from 1 bottom of well casing
4-6m；The diameter ratio of the outer diameter and well casing 1 of managing outer seal plate 8 is 2.3-2.5:1；Table on iron plate 9 and base plate of foundation pit concrete layer 4
The spacing in face is 9-12cm.
In the utility model embodiment, the packed height of melon seeds piece interval 6 is 10-15m, and Grouting Pipe lower section 202 is inserted into melon
Sub-pieces interval 6-9m, by Grouting Pipe lower section 202 be inserted into melon seeds piece interval, be conducive to from Grouting Pipe 2 enter cement mortar energy and
When penetrate into melon seeds piece interval 6, be freezing together melon seeds piece under the action of cement mortar, cement mortar is filled to iron plate 9
Bottom substantially increases the fastness of the shut-in well structure, equal to the closure of pressure-bearing pipe.
The well casing 1 of the utility model includes pipeline section 102 in well head pipeline section 101 and well, well head pipeline section 101 be located at iron plate 9 with
Upper part, pipeline section 102 is located at 9 or less part of iron plate in well, after the completion of cement slurry column 7 is constructed, the excision of 101 part of well head pipeline section.
The utility model by be inserted into well with the matched well casing of well head size, and in well casing underfill certain volume
Melon seeds piece, and it is suitable for reading to well casing to inject cement slurry, and well casing is suitable for reading after condensation uses iron plate welded closure, uses cement bonded sand at the top of iron plate
Slurry is smoothed out to base plate of foundation pit concrete upper surface, completes shut-in well construction, structure is simple, endurance is strong, plugging effect is good.
Claims (6)
- The structure 1. a kind of ultra-deep foundation pit decompression of confined water well is shunt in a well, it is characterised in that including well casing (1), base plate of foundation pit concrete layer (4) it is equipped in and manages outer seal plate (8), well casing (1) is fixed by seal plate outside pipe (8), is connected with Grouting Pipe (2), well casing in well casing (1) (1) under-filled to have melon seeds piece, it constitutes melon seeds piece interval (6), cement slurry is entered in well casing (1) by Grouting Pipe (2), constitutes water Mud column (7) cuts the Grouting Pipe (2) on cement slurry column (7) top, will be located at the excision of the well casing (1) at the top of cement slurry column (7), Welding setting iron plate (9) on well casing (1) nozzle, iron plate (9) top filling concrete mortar are smoothed out to base plate of foundation pit concrete layer (4) upper surface.
- The structure 2. a kind of ultra-deep foundation pit decompression of confined water well according to claim 1 is shunt in a well, it is characterised in that Grouting Pipe (2) Including the Grouting Pipe upper section (201) and Grouting Pipe lower section (202) connected by slip casting pipe connections (3), Grouting Pipe lower section (202) Apart from well casing (1) bottom 4-6m.
- The structure 3. a kind of ultra-deep foundation pit decompression of confined water well according to claim 2 is shunt in a well, it is characterised in that melon seeds lamella The height of section (6) is 10-15m, and Grouting Pipe lower section (202) is inserted into melon seeds piece interval (6) 6-9m.
- The structure 4. a kind of ultra-deep foundation pit decompression of confined water well according to claim 2 is shunt in a well, it is characterised in that well casing (1) packet Pipeline section (102) in well head pipeline section (101) and well is included, well head pipeline section (101) is located at iron plate (9) above section, pipeline section (102) in well After the completion of iron plate (9) following part, cement slurry column (7) construction, well head pipeline section (101) part is cut off.
- The structure 5. a kind of ultra-deep foundation pit decompression of confined water well according to claim 1 to 4 is shunt in a well, it is characterised in that pipe The outer diameter of outer seal plate (8) and the diameter ratio of well casing (1) are 2.3-2.5:1.
- The structure 6. a kind of ultra-deep foundation pit decompression of confined water well according to claim 1 to 4 is shunt in a well, it is characterised in that iron The spacing of plate (9) and base plate of foundation pit concrete layer (4) upper surface is 9-12cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820692899.1U CN208219682U (en) | 2018-05-10 | 2018-05-10 | A kind of ultra-deep foundation pit decompression of confined water well shut-in well structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820692899.1U CN208219682U (en) | 2018-05-10 | 2018-05-10 | A kind of ultra-deep foundation pit decompression of confined water well shut-in well structure |
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| CN208219682U true CN208219682U (en) | 2018-12-11 |
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| CN201820692899.1U Active CN208219682U (en) | 2018-05-10 | 2018-05-10 | A kind of ultra-deep foundation pit decompression of confined water well shut-in well structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109914452A (en) * | 2019-03-15 | 2019-06-21 | 五冶集团上海有限公司 | Deep well is shunt in a well method in a kind of foundation pit |
| CN110318409A (en) * | 2019-06-27 | 2019-10-11 | 联建建设工程有限公司 | A kind of deep basal pit artesian water is prominent to gush decompressor |
| CN111305245A (en) * | 2019-12-05 | 2020-06-19 | 中冶天工集团有限公司 | Confined water dewatering well sealing device and construction method |
-
2018
- 2018-05-10 CN CN201820692899.1U patent/CN208219682U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109914452A (en) * | 2019-03-15 | 2019-06-21 | 五冶集团上海有限公司 | Deep well is shunt in a well method in a kind of foundation pit |
| CN110318409A (en) * | 2019-06-27 | 2019-10-11 | 联建建设工程有限公司 | A kind of deep basal pit artesian water is prominent to gush decompressor |
| CN110318409B (en) * | 2019-06-27 | 2021-04-06 | 联建建设工程有限公司 | Deep basal pit confined water gushes pressure relief device suddenly |
| CN111305245A (en) * | 2019-12-05 | 2020-06-19 | 中冶天工集团有限公司 | Confined water dewatering well sealing device and construction method |
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