CN207211171U - A kind of detachable downcomer - Google Patents
A kind of detachable downcomer Download PDFInfo
- Publication number
- CN207211171U CN207211171U CN201720961482.6U CN201720961482U CN207211171U CN 207211171 U CN207211171 U CN 207211171U CN 201720961482 U CN201720961482 U CN 201720961482U CN 207211171 U CN207211171 U CN 207211171U
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- CN
- China
- Prior art keywords
- steel pipe
- floral tube
- real
- dewatering well
- pipe
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of detachable downcomer in foundation pit construction field, dewatering well is provided with subsurface, along dewatering well, if arterial highway support is sequentially provided with from top to down, precipitation steel pipe is cased with dewatering well, precipitation steel pipe includes some sections of real pipes and some sections of floral tubes, and real pipe and floral tube are arranged in a crossed manner, one section of precipitation steel pipe positioned at bottom is floral tube, and one section of precipitation steel pipe positioned at the top is managed to be real.The utility model manages dewatering well the position arranged crosswise with floral tube according to support in fact, increase overall ratio of the floral tube in well casing, improve dewatering effect, simultaneously, as excavation of foundation pit and Construction of Supporting constantly cut off dewatering well downwards, remain that dewatering well is in vacuum state, at utmost ensure dewatering effect.
Description
Technical field
Foundation pit construction field is the utility model is related to, is to be related to a kind of detachable downcomer specifically.
Background technology
In building foundation pit work progress, as foundation ditch constantly extends to underground, the underground water in water-bearing layer, which returns, pours in base
Hole, this is engineering water burst, gathers around husky or prominent situations such as gushing.In order to avoid such case occurs, it is necessary to treating construction area first
Lower hydromining, which takes, takes out dewatering measure, i.e., multiple rows of precipitation well point is arranged in foundation ditch or Polluted Soil process range, extracts a certain amount ofly
Lower water.
In traditional Precipitation Structure, set real pipe, lower end that screen pipe is set on the top of dewatering well, and then realize filtering work(
Energy.But the Precipitation Structure of this structure can not make full use of screen pipe to be filtered, dewatering effect is poor；And overall structure is steady
Qualitative difference, causes Precipitation Process to be obstructed.
Drawbacks described above, it is worth improving.
The content of the invention
In order to overcome the shortcomings of existing technology, the utility model provides a kind of detachable downcomer.
Technical solutions of the utility model are as described below：
A kind of detachable downcomer, it is characterised in that dewatering well is provided with subsurface, along the dewatering well, from upper
If arterial highway support is sequentially provided with and；Be cased with precipitation steel pipe in the dewatering well, the precipitation steel pipe include some sections of real pipes and
Some sections of floral tubes, the real pipe and the floral tube are arranged in a crossed manner, and one section of precipitation steel pipe positioned at bottom is the flower
Pipe, one section of precipitation steel pipe positioned at the top are the real pipe.
According to the utility model of such scheme, it is characterised in that the bottom of the floral tube of bottom extends to described
At the foundation ditch bottom surface line lower end 4m of dewatering well.
According to the utility model of such scheme, it is characterised in that the number phase of the road number of the support and the real pipe
Together, and the support extends transversely through and the fixed real pipe.
According to the utility model of such scheme, it is characterised in that the height of the real pipe is 2-3m.
According to the utility model of such scheme, it is characterised in that the floral tube is the steel pipe provided with some filter bores, and
Wrapping has filter screen on the outside of the floral tube.
According to the utility model of such scheme, it is characterised in that welded by iron plate close in the top of the precipitation steel pipe
Envelope.
According to the utility model of such scheme, its advantage is, base of the utility model in former vacuum-dewatering well
On plinth, by dewatering well, pipe and floral tube according to the position arranged crosswise of support, overall ratio of the increase floral tube in well casing, improve in fact
Dewatering effect；Meanwhile as excavation of foundation pit and Construction of Supporting constantly cut off dewatering well downwards, pass through the real pipe and flower set
Pipe order of placement, remain that dewatering well is in vacuum state, at utmost ensure dewatering effect；Ensureing good precipitation bar
Under part, the reinforcing of precipitation steel pipe is realized by multiple tracks support, increases the stability of whole Precipitation Structure.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is structural representation when cutting pipe in the utility model embodiment for the first time.
Structural representation when Fig. 3 is second section of pipe in the utility model embodiment.
Fig. 4 is structural representation when cutting pipe in the utility model embodiment for the third time.
In figure, 10, ground；21st, first of support；22nd, second supports；23rd, the 3rd support；30th, foundation ditch bottom surface
Line；40th, dewatering well；51st, first paragraph floral tube；52nd, second segment is managed in fact；53rd, the 3rd section of floral tube；54th, the 4th section of real pipe；55th, the 5th
Duan Huaguan；56th, the 6th section of real pipe.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is further described embodiment：
As shown in figure 1, a kind of detachable downcomer, is provided with dewatering well 40 in subsurface, precipitation is cased with dewatering well 40
Steel pipe, the top of precipitation steel pipe pass through iron plate welded seal.
Precipitation steel pipe includes some sections of real pipes and some sections of floral tubes, and real pipe and floral tube are arranged in a crossed manner, if floral tube be provided with
The steel pipe of dry filter bores, and wrapping has filter screen on the outside of floral tube.One section of precipitation steel pipe positioned at bottom is floral tube, positioned at topmost
One section of precipitation steel pipe managed to be real, and ground 10 is less than the top of the top precipitation steel pipe.
In the present embodiment, along precipitation steel pipe from the bottom up, first paragraph floral tube 51, second segment reality pipe 52, are followed successively by
Three sections of floral tubes 53, the 4th section of real pipe 54, the 5th section of floral tube 55 and the 6th section of real pipe 56.
Along dewatering well, if being sequentially provided with arterial highway support from top to down, the road number of support is identical with the number of real pipe, and props up
Support extends transversely through real pipe.In the present embodiment, along precipitation steel pipe is followed successively by first of support 21 from top to bottom, second supports
22 and the 3rd support 23, first of support 21 fix the 6th section of real pipe 56, the 4th section of real pipe 54 is fixed in second support 22,
Second segment reality pipe 52 is fixed in 3rd support 23.
The floral tube of bottom（First paragraph floral tube 51）Bottom extend at the lower end 4m of foundation ditch bottom surface line 30 of dewatering well.
Preferably, the height of real pipe is 2-3m.
Realization principle of the present utility model is：
As in Figure 2-4, because of the Construction of Supporting cycle, the leakage time is most long cruelly in earth excavation, so ensureing branch as far as possible
Support construction period dewatering well and keep vacuum state：When being excavated to below second 22 bottom absolute altitudes of support, the 5th section of floral tube is cut off
55 and the 6th section of real pipe 56, welded seal dewatering well, makes dewatering well recover vacuum state, keeps good dewatering effect again；
When being excavated to below the 3rd 23 bottom absolute altitudes of support, the 3rd section of floral tube 53 and the 4th section of real pipe 54 are blocked, again welded seal
Dewatering well, dewatering well is recovered vacuum state, keep good dewatering effect；Until being finally completed precipitation work.
The utility model is on the basis of former vacuum-dewatering well, and by dewatering well, pipe and floral tube intersect according to the position of support in fact
Arrangement, overall ratio of the increase floral tube in well casing, improves dewatering effect.Meanwhile as excavation of foundation pit and Construction of Supporting will drop
Well is constantly cut off downwards, by the real pipe and floral tube order of placement set, remains that dewatering well is in vacuum state, most
Big degree ensures dewatering effect.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted,
And all these modifications and variations should all belong to the protection domain of the appended claims for the utility model.
Exemplary description is carried out to the utility model patent above in conjunction with accompanying drawing, it is clear that the reality of the utility model patent
Now be not subject to the restrictions described above, if employ the utility model patent methodology and technical scheme carry out it is various
Improve, or it is not improved the design of the utility model patent and technical scheme are directly applied into other occasions, in this reality
With in new protection domain.
Claims (6)
- A kind of 1. detachable downcomer, it is characterised in that be provided with dewatering well in subsurface, along the dewatering well, from upper and If arterial highway support is sequentially provided with；Precipitation steel pipe is cased with the dewatering well, if the precipitation steel pipe include some sections of real pipes and Dry section floral tube, the real pipe and the floral tube are arranged in a crossed manner, and one section of precipitation steel pipe positioned at bottom is the floral tube, One section of precipitation steel pipe positioned at the top is the real pipe.
- 2. detachable downcomer according to claim 1, it is characterised in that the bottom extension of the floral tube of bottom To at the foundation ditch bottom surface line lower end 4m of the dewatering well.
- 3. detachable downcomer according to claim 1, it is characterised in that the road number of the support and the real pipe Number is identical, and the support extends transversely through and the fixed real pipe.
- 4. detachable downcomer according to claim 1, it is characterised in that the height of the real pipe is 2-3m.
- 5. detachable downcomer according to claim 1, it is characterised in that the floral tube is provided with some filter bores Steel pipe, and wrapping has filter screen on the outside of the floral tube.
- 6. detachable downcomer according to claim 1, it is characterised in that the top of the precipitation steel pipe passes through iron plate Welded seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720961482.6U CN207211171U (en) | 2017-08-03 | 2017-08-03 | A kind of detachable downcomer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720961482.6U CN207211171U (en) | 2017-08-03 | 2017-08-03 | A kind of detachable downcomer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207211171U true CN207211171U (en) | 2018-04-10 |
Family
ID=61817183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720961482.6U Expired - Fee Related CN207211171U (en) | 2017-08-03 | 2017-08-03 | A kind of detachable downcomer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207211171U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110878557A (en) * | 2019-12-05 | 2020-03-13 | 上海勘察设计研究院(集团)有限公司 | Layered bidirectional drainage method and device for foundation pit dewatering |
| CN113186961A (en) * | 2021-04-29 | 2021-07-30 | 中国一冶集团有限公司 | Foundation pit drainage method capable of reducing influence on surrounding buildings |
-
2017
- 2017-08-03 CN CN201720961482.6U patent/CN207211171U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110878557A (en) * | 2019-12-05 | 2020-03-13 | 上海勘察设计研究院(集团)有限公司 | Layered bidirectional drainage method and device for foundation pit dewatering |
| CN110878557B (en) * | 2019-12-05 | 2022-08-02 | 上海勘察设计研究院(集团)有限公司 | Layered bidirectional drainage method for foundation pit dewatering |
| CN113186961A (en) * | 2021-04-29 | 2021-07-30 | 中国一冶集团有限公司 | Foundation pit drainage method capable of reducing influence on surrounding buildings |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180410 Termination date: 20210803 |