CN204266220U - A kind of plugging device of precipitation well in foundation pit - Google Patents
A kind of plugging device of precipitation well in foundation pit Download PDFInfo
- Publication number
- CN204266220U CN204266220U CN201420710097.0U CN201420710097U CN204266220U CN 204266220 U CN204266220 U CN 204266220U CN 201420710097 U CN201420710097 U CN 201420710097U CN 204266220 U CN204266220 U CN 204266220U
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- flange
- steel sleeve
- plugging plate
- foundation pit
- hole
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Abstract
The utility model discloses a kind of plugging device of precipitation well in foundation pit, aim to provide a kind of shutoff reliable in quality, construction cost is low, the plugging device of the precipitation well in foundation pit that structure durability is good.It comprises the steel sleeve be vertically installed in dewatering well, is connected to the lamina tecti of steel sleeve upper end by flange arrangement, is arranged at the seal ring on steel sleeve outer wall, and is arranged at the metal plugging plate in steel sleeve; The middle part of described metal plugging plate is provided with through hole, and described through hole is fixedly connected with a flange upward by metallic conduit, described flange is provided with blank flange by bolt, and is provided with sealing mat between blank flange and flange.When the utility model is installed in dewatering well, utilize centrifugal pump temporarily to draw water from the through hole of metal plugging plate, prevent the generation of water burst phenomenon, for the welding of metal plugging plate provides enough operating times, thus ensure metal plugging plate welding quality, improve the waterproof effect of plugging structure.
Description
Technical field
The utility model relates to foundation pit dewatering civil engineering field of engineering technology, especially relates to a kind of plugging device of precipitation well in foundation pit.
Background technology
Because path resource is limited, for solving the difficult problem of trip, in recent years, domestic big and medium-sized cities progressively start to build city track traffic engineering.Many places, subway station are bustling location in city, and the urban operating mechanisms such as the building construction of construction area periphery, Urban Bridge, underground utilities, ancient architecture historical relic are various, and distance foundation ditch is near, and protection requires high.
In China most cities, especially Shelter in South China Cities, groundwater table is high, features as poor geologic condition, carries out deep foundation pit construction in these regions, and must carry out dewatering construction, the foundation pit dewatering degree of depth is mostly at more than 15m.Guarantee anhydrous operation in foundation ditch.
For reducing precipitation difficulty, reduce dewatering on a large scale and, on the impact of Adjacent Buildings, generally adopt precipitation in foundation ditch, dewatering well internal diameter is generally at 600mm.The plugging construction of dewatering well progressively carries out after main structure construction completes, owing to growing location at sand bed, crushed gravel layer, rock crack, groundwater seepage coefficient is large, water yield is large, after in dewatering well, water pump stops dewatering operation, if do not complete plugging dewatering well at short notice will there will be water burst phenomenon, thus affect the shutoff quality of dewatering well, cause later stage structure base slab seepage, operation phase station internal water accumulation phenomenon, reduces the problems such as structure durability.
Utility model content
The utility model overcomes shortcoming of the prior art, and provide a kind of shutoff reliable in quality, construction cost is low, the plugging device of the precipitation well in foundation pit that structure durability is good.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
A plugging device for precipitation well in foundation pit, comprises the steel sleeve be vertically installed in dewatering well, is connected to the lamina tecti of steel sleeve upper end by flange arrangement, is arranged at the seal ring on steel sleeve outer wall, and is arranged at the metal plugging plate in steel sleeve; The middle part of described metal plugging plate is provided with through hole, and described through hole is fixedly connected with a flange upward by metallic conduit, described flange is provided with blank flange by bolt, and is provided with sealing mat between blank flange and flange.
Preferably, the through-hole diameter in the middle part of described metal plugging plate is 150 ㎜.
Preferably, the wall thickness of the metallic conduit on described through hole is 3 ㎜, and length is 100 millimeters.
Preferably, the thickness of described metal plugging plate is 10 millimeters.
Preferably, the junction of described seal ring and steel sleeve is provided with expansion sealing strip.
Compared with prior art, the utility model tool has the following advantages:
When the utility model is installed in dewatering well, utilize centrifugal pump temporarily to draw water from the through hole of metal plugging plate, prevent the generation of water burst phenomenon, for the welding of metal plugging plate provides enough operating times, thus ensure the welding quality of metal plugging plate, improve the waterproof effect of plugging structure.Compare traditional dewatering well metal plugging plate, due to the not reserved perforate of traditional dewatering well metal plugging plate, the appearance of water burst is difficult to the welding quality ensureing metal plugging plate, therefore very easily there is the passage leaked, base plate dewatering well progressively shutoff after structure base slab has been constructed, groundwater table can progressively return to the groundwater table before construction due to the dewatering well water level that quits work, dewatering well place head pressure will progressively increase, due to dewatering well there is weak link in place, structure base slab must have leakage point and occur at dewatering well place, which adds waterproofing and leakage-stopping difficulty of construction and construction cost, and adopt the utility model can stop to occur leakage point, thus reduction construction cost, improve plugging dewatering well construction quality.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram after the utility model is installed in dewatering well.
Fig. 2 is the top view of metal plugging plate in the utility model.
Fig. 3 is the sectional view along A-A in Fig. 2.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not paying the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The plugging device of precipitation well in foundation pit shown in Fig. 1-3, comprise the steel sleeve 1 be vertically installed in dewatering well, be connected to the lamina tecti 2 of steel sleeve 1 upper end by flange arrangement, be arranged at the seal ring 3 on steel sleeve 1 outer wall, and be arranged at the metal plugging plate 4 in steel sleeve 1; The middle part of described metal plugging plate 4 is provided with through hole 5, and described through hole 5 is fixedly connected with a flange 7 upward by metallic conduit 6, described flange 7 is provided with blank flange 9 by bolt 8, and is provided with sealing mat 11 between blank flange 9 and flange 7.
Wherein, the thickness of described metal plugging plate 4 is 10 millimeters, and through hole 5 diameter in the middle part of described metal plugging plate 4 is 150 ㎜, and the wall thickness of the metallic conduit 6 on described through hole 5 is 3 ㎜, and length is 100 millimeters; Described seal ring 3 is provided with expansion sealing strip 10 with the junction of steel sleeve 1, improves the effect of shutoff further.
When the utility model is installed in dewatering well, utilize centrifugal pump temporarily to draw water from the through hole of metal plugging plate, prevent the generation of water burst phenomenon, the welding for metal plugging plate provides enough operating times, thus ensure the welding quality of metal plugging plate, improve the waterproof effect of plugging structure.Compare traditional dewatering well metal plugging plate, due to the not reserved perforate of traditional dewatering well metal plugging plate, the appearance of water burst is difficult to the welding quality ensureing metal plugging plate, therefore very easily there is the passage leaked, base plate dewatering well progressively shutoff after structure base slab has been constructed, groundwater table can progressively return to the groundwater table before construction due to the dewatering well water level that quits work, dewatering well place head pressure will progressively increase, due to dewatering well there is weak link in place, structure base slab must have leakage point and occur at dewatering well place, which adds waterproofing and leakage-stopping difficulty of construction and construction cost, and adopt the utility model can stop to occur leakage point, thus reduction construction cost, improve plugging dewatering well construction quality.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. a plugging device for precipitation well in foundation pit, comprises the steel sleeve be vertically installed in dewatering well, is connected to the lamina tecti of steel sleeve upper end by flange arrangement, is arranged at the seal ring on steel sleeve outer wall, and is arranged at the metal plugging plate in steel sleeve; It is characterized in that: the middle part of described metal plugging plate is provided with through hole, described through hole is fixedly connected with a flange upward by metallic conduit, described flange is provided with blank flange by bolt, and is provided with sealing mat between blank flange and flange.
2. the plugging device of precipitation well in foundation pit according to claim 1, is characterized in that: the through-hole diameter in the middle part of described metal plugging plate is 150 ㎜.
3. the plugging device of precipitation well in foundation pit according to claim 1 or 2, is characterized in that: the wall thickness of the metallic conduit on described through hole is 3 ㎜, and length is 100 millimeters.
4. the plugging device of precipitation well in foundation pit according to claim 1 or 2, is characterized in that: the thickness of described metal plugging plate is 10 millimeters.
5. the plugging device of precipitation well in foundation pit according to claim 4, is characterized in that: the junction of described seal ring and steel sleeve is provided with expansion sealing strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420710097.0U CN204266220U (en) | 2014-11-24 | 2014-11-24 | A kind of plugging device of precipitation well in foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420710097.0U CN204266220U (en) | 2014-11-24 | 2014-11-24 | A kind of plugging device of precipitation well in foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204266220U true CN204266220U (en) | 2015-04-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420710097.0U Expired - Fee Related CN204266220U (en) | 2014-11-24 | 2014-11-24 | A kind of plugging device of precipitation well in foundation pit |
Country Status (1)
| Country | Link |
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| CN (1) | CN204266220U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544571A (en) * | 2015-12-09 | 2016-05-04 | 浙江科技学院 | Foundation pit confined aquifer precipitation well plugging device |
| CN105544572A (en) * | 2015-12-09 | 2016-05-04 | 浙江科技学院 | Plugging method of foundation pit confined aquifer precipitation well |
| CN105951859A (en) * | 2016-05-31 | 2016-09-21 | 中国冶集团有限公司 | Treatment method of plugging water stop construction for foundation pit dewatering well to penetrate through concrete base plate of basement |
| CN106567397A (en) * | 2016-11-10 | 2017-04-19 | 河北二十冶建设有限公司 | Method and device for controlling underground water of deep foundation pit |
| CN108589753A (en) * | 2018-04-27 | 2018-09-28 | 中铁十二局集团有限公司 | Dewatering well crosses bottom plate method for blocking |
| CN108677983A (en) * | 2018-08-09 | 2018-10-19 | 上海长凯岩土工程有限公司 | A kind of simple dynamic water level shut-in well structure and its construction method |
| CN108755723A (en) * | 2018-06-05 | 2018-11-06 | 中冶天工集团有限公司 | A kind of removable dewatering well well mouth sealing device and slip casting plugging construction method |
| CN109440775A (en) * | 2018-12-27 | 2019-03-08 | 云南省建设投资控股集团有限公司 | A kind of sunk type foundation pit Yield rainfall relation system, construction method and application method |
| CN113482025A (en) * | 2021-07-15 | 2021-10-08 | 海通建设集团有限公司 | Deep foundation pit dewatering well plugging structure and construction method thereof |
| CN114718099A (en) * | 2022-03-21 | 2022-07-08 | 中国五冶集团有限公司 | Well plugging device for dewatering well |
| CN115142454A (en) * | 2022-06-27 | 2022-10-04 | 中国建筑第八工程局有限公司 | Active pressure reduction well plugging method under large inrush force condition |
-
2014
- 2014-11-24 CN CN201420710097.0U patent/CN204266220U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544572A (en) * | 2015-12-09 | 2016-05-04 | 浙江科技学院 | Plugging method of foundation pit confined aquifer precipitation well |
| CN105544571A (en) * | 2015-12-09 | 2016-05-04 | 浙江科技学院 | Foundation pit confined aquifer precipitation well plugging device |
| CN105544572B (en) * | 2015-12-09 | 2017-06-30 | 浙江科技学院 | A kind of foundation ditch artesian aquifer plugging dewatering well method |
| CN105544571B (en) * | 2015-12-09 | 2018-03-09 | 浙江科技学院 | Foundation ditch artesian aquifer plugging dewatering well device |
| CN105951859B (en) * | 2016-05-31 | 2018-04-10 | 中国一冶集团有限公司 | Base pit dewatering well wears concrete of basement bottom plate closure sealing construction processing method |
| CN105951859A (en) * | 2016-05-31 | 2016-09-21 | 中国冶集团有限公司 | Treatment method of plugging water stop construction for foundation pit dewatering well to penetrate through concrete base plate of basement |
| CN106567397A (en) * | 2016-11-10 | 2017-04-19 | 河北二十冶建设有限公司 | Method and device for controlling underground water of deep foundation pit |
| CN108589753A (en) * | 2018-04-27 | 2018-09-28 | 中铁十二局集团有限公司 | Dewatering well crosses bottom plate method for blocking |
| CN108755723A (en) * | 2018-06-05 | 2018-11-06 | 中冶天工集团有限公司 | A kind of removable dewatering well well mouth sealing device and slip casting plugging construction method |
| CN108677983A (en) * | 2018-08-09 | 2018-10-19 | 上海长凯岩土工程有限公司 | A kind of simple dynamic water level shut-in well structure and its construction method |
| CN109440775A (en) * | 2018-12-27 | 2019-03-08 | 云南省建设投资控股集团有限公司 | A kind of sunk type foundation pit Yield rainfall relation system, construction method and application method |
| CN109440775B (en) * | 2018-12-27 | 2020-11-24 | 云南省建设投资控股集团有限公司 | Sinking type foundation pit dewatering and drainage system, construction method and use method |
| CN113482025A (en) * | 2021-07-15 | 2021-10-08 | 海通建设集团有限公司 | Deep foundation pit dewatering well plugging structure and construction method thereof |
| CN114718099A (en) * | 2022-03-21 | 2022-07-08 | 中国五冶集团有限公司 | Well plugging device for dewatering well |
| CN115142454A (en) * | 2022-06-27 | 2022-10-04 | 中国建筑第八工程局有限公司 | Active pressure reduction well plugging method under large inrush force condition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20201124 |
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| CF01 | Termination of patent right due to non-payment of annual fee |