CN205444214U - Deep basal pit superelevation water level precipitation well well head plugging device - Google Patents
Deep basal pit superelevation water level precipitation well well head plugging device Download PDFInfo
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- CN205444214U CN205444214U CN201521088457.9U CN201521088457U CN205444214U CN 205444214 U CN205444214 U CN 205444214U CN 201521088457 U CN201521088457 U CN 201521088457U CN 205444214 U CN205444214 U CN 205444214U
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Abstract
The utility model discloses a deep basal pit superelevation water level precipitation well well head plugging device, including having the waterproof sleeve of the stagnant water wing with fixing device, fixing device fixes at precipitation well well head, the stagnant water wing sets up inside the cast in situ concrete bottom plate, the inside pore free welded of waterproof sleeve has first seal plate, first the pore free welded of seal plate central authorities has the plug device, the plug device includes the plug pipe wall, the inside shutoff the airbag that is provided with of plug pipe wall, plug pipe wall upper end is provided with the plug head, waterproof telescopic upper end is provided with second way seal plate, first seal plate with the second says that from the bottom up has set gradually concrete layer and leaking stoppage layer between the seal plate, the second say the seal plate with be provided with the concrete protection layer between the upper surface of cast in situ concrete bottom plate.
Description
Technical field
This utility model relates to civil construction technical field, it particularly relates to a kind of deep basal pit surcharge water level dewatering well well head plugging device.
Background technology
It is generally required to foundation ditch to be taked corresponding dewatering measure during civil construction, wherein well-point dewatering method obtains relatively broad application, therefore need dewatering well is blocked during construction in later period, the most commonly used existing way has: one, backfill sandstone mixing aggregate, dry cement and impervious expansive concrete in dewatering well successively, finally with the closure of casting complete dewatering well of cast-in-place concrete base plate；Two, before blinding concrete is poured into a mould, the waterproof sleeve of band water-proof wing is fixed on dewatering well; subsequently complete the construction of bed course, waterproof layer and fish tail and waterproof layer; stop precipitation being extracted out by immersible pump when cast-in-place concrete underplate concrete is poured into dewatering well; completing welding of prefabricated water-stop steel plate and waterproof sleeve before water level rises to well head, seamless welding carries out pouring of this position cast-in-place concrete underplate concrete after completing immediately.
When in dewatering well, hydraulic pressure is bigger, stop precipitation water level meeting rapid increase, concrete aggregate sharp separation under the effect of water of scheme one backfill cannot complete closure or plugging effect undesirable appearance infiltration phenomenon, and second scheme cannot complete the seamless welding of steel plate for sealing water and waterproof sleeve.The undesirable main cause of existing closure scheme is that hydraulic pressure is bigger in dewatering well, stopping water level rapid increase after precipitation, this is accomplished by when how further investigated carries out quick blocking before water level rises to well head or gush on well water still to complete closure and ensureing plugging effect.
Utility model content
For the above-mentioned technical problem in correlation technique, the utility model proposes a kind of deep basal pit surcharge water level dewatering well well head plugging device, it is possible to increase the success rate of closure, it is ensured that the reliability of closure, it is to avoid repeatedly construct, accelerate speed of application, cost efficiency.
For realizing above-mentioned technical purpose, the technical solution of the utility model is achieved in that
A kind of deep basal pit surcharge water level dewatering well well head plugging device, including the waterproof sleeve with water-proof wing Yu fixing device, described fixing device is fixed on dewatering well well head, and described water-proof wing is arranged on cast-in-place concrete base plate interior；Described waterproof sleeve inner seamless welding has first seal plate, described first seal plate central authorities seamless welding has thread protecting clog, described thread protecting clog includes that plug tube wall, described plug tube wall are internally provided with closure aerating gasbag, and described plug tube wall upper end is provided with plug；The upper end of described waterproof sleeve is provided with second seal plate, is disposed with concrete layer and leak stopping layer between described first seal plate and described second seal plate from top to bottom；It is provided with concrete cover between the upper surface of described second seal plate and described cast-in-place concrete base plate.
Further, it is filled with coarse aggregate to pithead position inside described dewatering well.
Further, the home position of described first seal plate is provided with perforate and described plug tube wall seamless welding.
Further, a concrete label higher than the concrete of described cast-in-place concrete base plate of the described concrete layer in described waterproof sleeve.
Further, the distance between described second seal plate and described cast-in-place concrete plate upper surface is more than the height of described concrete cover.
Further, the concrete of a described concrete cover label higher than the concrete of described cast-in-place concrete base plate.
Further, the described leak stopping layer in described waterproof sleeve is dry cement and leak stopping spirit mixture.
Further, fish tail and waterproof layer, concrete cushion it are disposed with from top to bottom between described cast-in-place concrete base plate and dewatering well well head upper surface.
Further, double-deck waterproof roll it is provided with between described fish tail and waterproof layer and described concrete cushion.
The beneficial effects of the utility model: easy and simple to handle, exploitativeness is strong；Substantially increase the closure success rate of deep basal pit surcharge water level dewatering well, it is ensured that the plugging effect of dewatering well；While accelerating speed of application, cost efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the new precipitation scheme generalized section according to this utility model embodiment；
Fig. 2 is that the thread protecting clog according to this utility model embodiment installs generalized section；
Fig. 3 is the plugging dewatering well effect profile according to this utility model embodiment.
In figure:
1, concrete cover；2, second seal plate；3, leak stopping layer；4, concrete layer；5, plug；6, first seal plate；7, plug tube wall；8, closure aerating gasbag；9, coarse aggregate；10, thread protecting clog；11, water-proof wing；12, fixing device；13, waterproof sleeve；14, dewatering well；15, cast-in-place concrete base plate；16, fish tail and waterproof layer；17, double-deck waterproof roll；18, concrete cushion；19, aid；20, drain pipe.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained, broadly fall into the scope of this utility model protection.
As shown in Figure 3, according to a kind of deep basal pit surcharge water level dewatering well well head plugging device described in this utility model embodiment, including the waterproof sleeve 13 with water-proof wing 11 with fixing device 12, described fixing device 12 is fixed on dewatering well 14 well head, and it is internal that described water-proof wing 11 is arranged on cast-in-place concrete base plate 15；The internal seamless welding of described waterproof sleeve 13 has first seal plate 6, described first seal plate 6 central authorities seamless welding has thread protecting clog 10, described thread protecting clog 10 includes plug tube wall 7, described plug tube wall 7 is internally provided with closure aerating gasbag 8, and described plug tube wall 7 upper end is provided with plug 5；The upper end of described waterproof sleeve 13 is provided with second seal plate 2, is disposed with concrete layer 4 and leak stopping layer 3 between described first seal plate 6 and described second seal plate 2 from top to bottom；It is provided with concrete cover 1 between the upper surface of described second seal plate 2 and described cast-in-place concrete base plate 15；Described dewatering well 14 inside is filled with coarse aggregate 9 to pithead position.
Described waterproof sleeve 13 is outside is disposed with cast-in-place concrete base plate 15, fish tail and waterproof layer 16, double-deck waterproof roll 17, concrete cushion 18 from up to dewatering well pithead position.
Wherein, waterproof sleeve is waterproof steel bushing, and first seal plate is first steel plate for sealing water, and second seal plate is second steel plate for sealing water, and leak stopping layer is dry cement and leak stopping spirit mixture, and coarse aggregate is rubble.
Understand technique scheme of the present utility model for convenience, below by way of in specifically used mode, technique scheme of the present utility model is described in detail.
When specifically used, the closure employing following steps to dewatering well well head:
1) the prefabricated and placement of waterproof sleeve.
At the top of waterproof sleeve 13 and bottom seamless welding water-proof wing 11 respectively and fixing device 12; and after ensureing that waterproof sleeve 13 is placed; its top is more than or equal to concrete cover 1 thickness with the distance of cast-in-place concrete base plate 15 upper surface, and water-proof wing 11 is then positioned in the middle part of cast-in-place concrete base plate 15.Before concrete cushion 18 pours, the waterproof sleeve 13 of band water-proof wing is inserted and secured on dewatering well 14 well head, subsequently completes the construction of cast-in-place concrete base plate 15 and concrete cushion 18 etc..
2) precipitation scheme is changed, as shown in Figure 1.
Immersible pump is taken out and is replaced by self priming pump, install simple filter apparatus additional in drain pipe 20 front end, the drain pipe 20 then perforate insertion shaft bottom continuation draining at center on first steel plate for sealing water.
3) backfill coarse aggregate.
Rubble is backfilled to bottom concrete cushion 18 in dewatering well 14.
4) welding of first seal plate.
Coarse aggregate 9 carries out the welding of first steel plate for sealing water after having filled, the front simple hand-held device of spot welding on steel plate for sealing water of welding, steel plate for sealing water is placed in waterproof sleeve 13, bottommost in solderable scope completes the seamless welding of first steel plate for sealing water and waterproof sleeve 13, takes off simple hand-held device after having welded.
5) aerating gasbag and the closure of plug, as shown in Figure 2.
First steel plate for sealing water stops precipitation after having welded and is quickly drawn out by drain pipe 20, closure aerating gasbag 8 is put into plug tube wall 7 and completes inflation, and in compacting well, water level rises, and then uses plug aid 19 by plug 5 Quick fastening.
6) first steel plate for sealing water top is filled.
To the high concrete of first steel plate for sealing water top packing ratio cast-in-place concrete base plate 15, after having vibrated, apply proper amount of dry cement and leak stopping spirit mixture at an upper portion thereof.
7) welding of second steel plate for sealing water.
Place second steel plate for sealing water, ensure during placement that steel plate for sealing water is more than or equal to concrete cover 1 thickness with the distance of cast-in-place concrete base plate 15 upper surface, and carry out seamless welding with waterproof sleeve 13.
8) second steel plate for sealing water top is filled.
A concrete higher than cast-in-place concrete base plate 15 is poured on second steel plate for sealing water top, levelling with cast-in-place concrete base plate 15 after having vibrated.
9) finished product protection, completes plugging dewatering well, as shown in Figure 3.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (8)
1. a deep basal pit surcharge water level dewatering well well head plugging device, it is characterized in that, including the waterproof sleeve (13) with water-proof wing (11) Yu fixing device (12), described fixing device (12) is fixed on dewatering well well head, and it is internal that described water-proof wing (11) is arranged on cast-in-place concrete base plate (15)；The internal seamless welding of described waterproof sleeve (13) has first seal plate (6), described first seal plate (6) central authorities seamless welding has thread protecting clog (10), described thread protecting clog (10) includes plug tube wall (7), described plug tube wall (7) is internally provided with closure aerating gasbag (8), and described plug tube wall (7) upper end is provided with plug (5)；The upper end of described waterproof sleeve (13) is provided with second seal plate (2), is disposed with concrete layer (4) and leak stopping layer (3) between described first seal plate (6) and described second seal plate (2) from top to bottom；It is provided with concrete cover (1) between described second seal plate (2) and the upper surface of described cast-in-place concrete base plate (15).
Deep basal pit surcharge water level dewatering well well head plugging device the most according to claim 1, it is characterised in that be filled with coarse aggregate (9) to pithead position inside described dewatering well.
Deep basal pit surcharge water level dewatering well well head plugging device the most according to claim 1, it is characterised in that the home position of described first seal plate (6) is provided with perforate and described plug tube wall (7) seamless welding.
Deep basal pit surcharge water level dewatering well well head plugging device the most according to claim 1, it is characterised in that the concrete of the described concrete layer (4) in described waterproof sleeve (13) is than the high label of concrete of described cast-in-place concrete base plate (15).
Deep basal pit surcharge water level dewatering well well head plugging device the most according to claim 1, it is characterised in that the distance between described second seal plate (2) and described cast-in-place concrete base plate (15) upper surface is more than the height of described concrete cover (1).
Deep basal pit surcharge water level dewatering well well head plugging device the most according to claim 5, it is characterised in that the concrete of described concrete cover (1) is than the high label of concrete of described cast-in-place concrete base plate (15).
Deep basal pit surcharge water level dewatering well well head plugging device the most according to claim 1; it is characterized in that, between described cast-in-place concrete base plate (15) and dewatering well well head upper surface, be disposed with fish tail and waterproof layer (16), concrete cushion (18) from top to bottom.
Deep basal pit surcharge water level dewatering well well head plugging device the most according to claim 7, it is characterised in that be provided with double-deck waterproof roll (17) between described fish tail and waterproof layer (16) and described concrete cushion (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521088457.9U CN205444214U (en) | 2015-12-23 | 2015-12-23 | Deep basal pit superelevation water level precipitation well well head plugging device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521088457.9U CN205444214U (en) | 2015-12-23 | 2015-12-23 | Deep basal pit superelevation water level precipitation well well head plugging device |
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| CN205444214U true CN205444214U (en) | 2016-08-10 |
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| CN201521088457.9U Active CN205444214U (en) | 2015-12-23 | 2015-12-23 | Deep basal pit superelevation water level precipitation well well head plugging device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107764978A (en) * | 2017-11-08 | 2018-03-06 | 北京林业大学 | A kind of gasbag-type tensometer and its application method |
| CN108193700A (en) * | 2017-12-18 | 2018-06-22 | 中冶天工集团有限公司 | The quick well-sealing device of pressure reduction well |
| 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 |
| CN109680698A (en) * | 2017-10-18 | 2019-04-26 | 五冶集团上海有限公司 | It is a kind of to block precipitation tube well construction method with pipe cap |
| CN109869116A (en) * | 2019-03-07 | 2019-06-11 | 东北大学 | A kind of plugging dewatering well structure and its construction method |
| 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 |
| CN111441374A (en) * | 2020-01-14 | 2020-07-24 | 中建六局建设发展有限公司 | Quick plugging construction method for high-water-pressure deep foundation pit dewatering well |
| CN111926841A (en) * | 2020-08-04 | 2020-11-13 | 中天建设集团有限公司 | Dewatering well water-carrying plugging structure and construction method thereof |
| CN114427233A (en) * | 2022-03-01 | 2022-05-03 | 中国建筑第八工程局有限公司 | Precipitation wellhead plugging device 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 |
-
2015
- 2015-12-23 CN CN201521088457.9U patent/CN205444214U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109680698A (en) * | 2017-10-18 | 2019-04-26 | 五冶集团上海有限公司 | It is a kind of to block precipitation tube well construction method with pipe cap |
| CN107764978A (en) * | 2017-11-08 | 2018-03-06 | 北京林业大学 | A kind of gasbag-type tensometer and its application method |
| CN108193700A (en) * | 2017-12-18 | 2018-06-22 | 中冶天工集团有限公司 | The quick well-sealing device of pressure reduction well |
| 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 |
| CN109869116A (en) * | 2019-03-07 | 2019-06-11 | 东北大学 | A kind of plugging dewatering well structure and its construction method |
| 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 |
| CN111441374A (en) * | 2020-01-14 | 2020-07-24 | 中建六局建设发展有限公司 | Quick plugging construction method for high-water-pressure deep foundation pit dewatering well |
| CN111926841A (en) * | 2020-08-04 | 2020-11-13 | 中天建设集团有限公司 | Dewatering well water-carrying plugging structure and construction method thereof |
| CN114427233A (en) * | 2022-03-01 | 2022-05-03 | 中国建筑第八工程局有限公司 | Precipitation wellhead plugging device 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 |
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| C14 | Grant of patent or utility model | ||
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Effective date of registration: 20180706 Address after: 100040 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Co-patentee after: China Railway Construction Group Beijing Engineering Co., Ltd. Patentee after: Zhongtie Construction Group Corporation Limited Address before: 100131 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee before: Zhongtie Construction Group Corporation Limited |