CN100557146C - Fast plugging device for deep foundation pit precipitation well - Google Patents
Fast plugging device for deep foundation pit precipitation well Download PDFInfo
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- CN100557146C CN100557146C CNB2008100190871A CN200810019087A CN100557146C CN 100557146 C CN100557146 C CN 100557146C CN B2008100190871 A CNB2008100190871 A CN B2008100190871A CN 200810019087 A CN200810019087 A CN 200810019087A CN 100557146 C CN100557146 C CN 100557146C
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Abstract
Fast plugging device for deep foundation pit precipitation well, form and comprise shut-in well cover, shut-in well cover base, shut-in well lid, outer seal ring, interior seal ring, seal plate, the shut-in well cover base is the annular seating of fixedlying connected with shut-in well cover inwall lower vertical, the bolt of circumference in equal parts ground welding more than three or three on it, shut-in well covers to have and the bolt corresponding bolt hole of shut-in well on the cover base, inside and outside seal ring is connected with the inside and outside wall vertical fixing of shut-in well cover, and employing is welded to connect or flange is connected between seal plate and the interior seal ring.This apparatus structure is simple, and cost of manufacture is low, and is easy to use, and applicability is wide; substitute present various shut-in well technologies with unified construction technology, shutoff speed is fast, and the cost of shut-in well construction is also very low; construction devoid of risk, no potential safety hazard are stopped uncontrolled groundwater abstraction, help environmental protection.
Description
Technical field
The present invention relates to a kind of deep foundation pit precipitation well plugging device of building field underground structure construction, be used for underground structure completion back the deep foundation pit precipitation well quick blocking under the high hydraulic pressure state.
Background technology
At present, the dewatering measure that physical features is lower, the construction of the underground structure of rich groundwater regional architecture thing must be adopted deep foundation pit precipitation well also needs shutoff precipitation well after finishing the work.Because it is very fast that precipitation well water pressure is very big, water level rises, the quick blocking work of carrying out the precipitation well is extremely important.The method of traditional shutoff precipitation well mainly contains dry cement and adds that naked stone is filled out well and concrete drier is filled out these two kinds in well, the shortcoming of its existence is: the shut-in well material, shut-in well technology and the device that 1. do not have special unified regulation, a lot of constructions are carried out by rule of thumb, have a big risk, and success rate is low; 2. the shutoff time is long in the construction, cost drops into height, influence the engineering normal construction; 3. in case shut-in well failure easily causes the underground water jet phenomenon, will spend bigger cost and speedily carry out rescue work and remedy.
For preventing the shut-in well failure, the risk that the construction enterprises that have have taked some other ways to shift or evade shut-in well, for example adopt conduit with the extremely basic outer precipitation of the water drainage in the precipitation well, though this method can be avoided the risk of shunting in a well, but increase input during the precipitation and the risk during the precipitation, and a large amount of groundwater abstraction can cause environmental disruption.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the shortcoming of prior art, and a kind of simple in structure, easy to use, fast plugging device for deep foundation pit precipitation well that cost is low is provided, and effectively reduces the risk of shutoff precipitation well.
The technical solution adopted for the present invention to solve the technical problems is as follows: a kind of fast plugging device for deep foundation pit precipitation well, it is characterized in that forming and comprise that shut-in well overlaps, the shut-in well cover base, the shut-in well lid, outer seal ring, interior seal ring, seal plate, the diameter of described shut-in well cover is greater than precipitation well well head diameter, described shut-in well cover base is the annular seating of fixedlying connected with shut-in well cover inwall lower vertical, the bolt of circumference in equal parts ground welding more than three or three on it, the diameter of described shut-in well lid is greater than the internal diameter of shut-in well cover base, shut-in well covers to have and the bolt corresponding bolt hole of shut-in well on the cover base, the shut-in well lid adopts flange to be connected with the shut-in well cover base, described outer seal ring is fixedlyed connected with shut-in well cover outer wall vertical, seal ring is connected with shut-in well cover inwall vertical fixing in described, the diameter of described seal plate is greater than the internal diameter of interior seal ring, the internal diameter of interior seal ring is greater than the diameter of shut-in well lid, and employing is welded to connect or flange is connected between seal plate and the interior seal ring.
Adopt apparatus of the present invention of technique scheme to be applicable to the quick blocking of getting pump sump (taking out the water pump in the deep foundation pit precipitation well earlier, the precipitation well that carries out shutoff again).
For making this device can be applicable to the quick blocking of getting pump sump, can be applicable to that again abandoning pump sump (abandons the water pump in the deep foundation pit precipitation well, the pump of not fetching water directly carries out the precipitation well of shutoff) quick blocking, and shutoff speed is faster, it is as follows that the present invention solves the further technical scheme that its technical problem adopts: described shut-in well lid center has through hole and welding directly, and this directly is threaded with its supporting plug.
For guaranteeing effective shutoff to deep foundation pit precipitation well, the present invention further technical scheme is as follows: described outer seal ring comprises outside the lower floor seal ring outside the seal ring and upper strata, seal ring comprises in the lower floor seal ring in the seal ring and upper strata in described, described seal plate comprises lower floor's seal plate and upper strata seal plate, lower floor's seal plate is corresponding with seal ring in the lower floor, the upper strata seal plate is corresponding with seal ring in the upper strata, and in the upper strata internal diameter of seal ring greater than the diameter of lower floor's seal plate.
The using method of fast plugging device for deep foundation pit precipitation well of the present invention is as follows: when sole plate is constructed, the earlier pre-buried shut-in well cover that has shut-in well cover base, outer seal ring, interior seal ring, treat to begin after underground structure is finished the precipitation well is carried out the shutoff operation, pump sump is got in elder generation's shutoff, and pump sump is abandoned in shutoff again.Concrete operations are as follows:
Get pump sump: shut-in well device makings → shut-in well cover is pre-buried → and shut-in well prepares → gets pump sump and shut down and get pump → shut-in well lid (will shunt in a well to cover with the cover base flange of shunting in a well and be connected) → fill out concrete drier → lower floor's seal plate installation (between seal plate and the interior seal ring employing be welded to connect or flange is connected) → fill out concrete drier → upper strata seal plate installation → concreting is installed, finish and get the pump sump shutoff.
Abandon pump sump: shut-in well device makings → shut-in well cover is pre-buried → and shut-in well prepares → carries to install the previous day shut-in well lid (lid of will shunt in a well is connected with the cover base flange of shunting in a well) → cut off the power supply and cut off water pipe and abandon pump → plug installation and (supporting being welded on of plug and its shunt in a well cover directly being threaded on the central through hole, and tighten) → fill out concrete drier → lower floor seal plate (between seal plate and the interior seal ring employing be welded to connect or flange is connected) → fill out concrete drier → upper strata seal plate installation → concreting is installed, finish and abandon the pump sump shutoff.
Beneficial effect of the present invention is as follows: the shut-in well apparatus structure is simple, easy to use, and applicability is wide, and shutoff speed is fast, devoid of risk, low cost, environmental protection and saving.
1. based on this shut-in well device, use the unified ripe construction technology can quick blocking high pressure drop well;
2. shunt in a well simple to operate, step is few, speed is very fast, abandons pump sump and can block water, get pump sump in 1 minute and can block water in 3 minutes, finish the fastest 17 minutes of the time of whole shutoff and can finish;
3. shunting in a well, the device production and processing is simple, cost of manufacture is low, is suitable for all deep foundation pit precipitation well shutoff, and present various shut-in well technologies all can be by this device replacement, the operation of can scale founding the factory;
4. the device protection of shunting in a well height, construction devoid of risk, no potential safety hazard can be guaranteed once successful, perfectly safe;
5. after adopting this device, stop during the precipitation the precipitation risk, convenient and simple to precipitation control, stop uncontrolled groundwater abstraction, help environmental protection;
6. the device of not only shunting in a well is cheap, and the cost of shut-in well construction is also very low, contrasts other various shut-in well modes, and cost reduces greatly.
Description of drawings
Fig. 1 is the present invention's device overall structure vertical profile schematic diagram of shunting in a well.
Fig. 2 abandons pump sump shut-in well and covers vertical view for the present invention device embodiment 1 that shunts in a well.
Fig. 3 shows schematic diagram for the A-A of Fig. 2 cuts open.
Fig. 4 abandons pump sump and finishes the shutoff schematic diagram for the present invention device embodiment 1 that shunts in a well
Fig. 5 gets pump sump shut-in well and covers vertical view for the present invention device embodiment 2 that shunts in a well.
Fig. 6 shows schematic diagram for the B-B of Fig. 5 cuts open.
Fig. 7 gets pump sump and finishes the shutoff schematic diagram for the present invention device embodiment 2 that shunts in a well.
The specific embodiment
With reference to the accompanying drawings and in conjunction with the embodiments the present invention is described in further detail.But the invention is not restricted to given example.
As Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, among the embodiment 1, fast plugging device for deep foundation pit precipitation well of the present invention is used to abandon the shutoff of pump sump, form and comprise shut-in well cover 1, shut-in well cover base 4, shut-in well covers 7, seal ring 21 outside the lower floor, seal ring 22 outside the upper strata, seal ring 31 in the lower floor, seal ring 32 in the upper strata, lower floor's seal plate 91, upper strata seal plate 92, the diameter of described shut-in well cover 1 is greater than the well head diameter of precipitation well 11, described shut-in well cover base 4 is the annular seating of fixedlying connected with shut-in well cover 1 inwall lower vertical, welding six bolts 6 in circumference in equal parts ground on it, the diameter of described shut-in well lid 7 is greater than the internal diameter of shut-in well cover base 4, shut-in well cover have on 7 with the cover base of shunting in a well on the corresponding bolt hole 71 of bolt, shut-in well cover 7 and is connected with the cover base 4 employing flanges of shunting in a well, on described, seal ring 22 outside the lower floor, 21 overlap 1 outer wall vertical with shut-in well fixedlys connected, on described, seal ring 32 in the lower floor, 31 overlap 1 inwall vertical fixing with shut-in well is connected, the diameter of described upper strata seal plate 92 is greater than the internal diameter of seal ring in the upper strata 32, the internal diameter of seal ring 32 is greater than the diameter of lower floor's seal plate 91 in the upper strata, the diameter of lower floor's seal plate 91 is greater than the internal diameter of seal ring in the lower floor 31, the internal diameter of seal ring 31 covers 7 diameter in the lower floor greater than shut-in well, be welded to connect between the seal ring 31 in lower floor's seal plate 91 and the lower floor, also can adopt flange to connect, be welded to connect between the seal ring 32 in upper strata seal plate 92 and the upper strata, also can adopt flange to connect.Adopt which kind of connected mode between seal plate and the seal ring actually, determine that according to the situation of on-the-spot shutoff precipitation well the flange connection speed is faster.In as Fig. 1, embodiment shown in Figure 4, seal ring 32,31 interlocks on the inner-outer wall of shut-in well cover 1 and fixes in the outer seal ring 22,21 of upper and lower layer and the upper and lower layer, and stagnant water effect is better.In Fig. 1 and Fig. 4,5 signal rubber washers, 8 signal nuts, 10 signal pads, the 14 signal concrete driers of filling out, 15 signal foundation soils.
As Fig. 5, Fig. 6 and shown in Figure 7, among the embodiment 2, fast plugging device for deep foundation pit precipitation well of the present invention is used to get the shutoff of pump sump, its shut-in well cover 7 center and has through hole 72 and direct (being commonly called as " quick coupling ") 12 of welding, and this direct 12 is threaded with its supporting plug (being commonly called as " silently ") 13.All the other labels are with embodiment 1 among the figure.
Among the embodiment, the shut-in well cover is made by large diameter steel pipe, and shut-in well lid, seal plate are made by circular steel plate, and inside and outside seal ring is made by doughnut-shaped steel plate.According to actual needs, the bolt of circumference in equal parts welding can be three to six or more on the shut-in well cover base, and interior seal ring and the seal plate supporting with it can be three layers or more multi-layered.
Claims (5)
1, fast plugging device for deep foundation pit precipitation well, it is characterized in that forming and comprise that shut-in well overlaps, the shut-in well cover base, the shut-in well lid, outer seal ring, interior seal ring, seal plate, the diameter of described shut-in well cover is greater than precipitation well well head diameter, described shut-in well cover base is the annular seating of fixedlying connected with shut-in well cover inwall lower vertical, the bolt of circumference in equal parts ground welding more than three or three on it, the diameter of described shut-in well lid is greater than the internal diameter of shut-in well cover base, shut-in well covers to have and the bolt corresponding bolt hole of shut-in well on the cover base, the shut-in well lid adopts flange to be connected with the shut-in well cover base, described outer seal ring is fixedlyed connected with shut-in well cover outer wall vertical, seal ring is connected with shut-in well cover inwall vertical fixing in described, the diameter of described seal plate is greater than the internal diameter of interior seal ring, the internal diameter of interior seal ring is greater than the diameter of shut-in well lid, and employing is welded to connect or flange is connected between seal plate and the interior seal ring.
2, fast plugging device for deep foundation pit precipitation well according to claim 1 is characterized in that described shut-in well lid center has through hole and welds quick coupling, and this quick coupling is threaded with its supporting plug.
3, fast plugging device for deep foundation pit precipitation well according to claim 1 and 2 is characterized in that welding six bolts in circumference in equal parts ground on the described shut-in well cover base.
4, fast plugging device for deep foundation pit precipitation well according to claim 1 and 2, it is characterized in that described outer seal ring comprises outside the lower floor seal ring outside the seal ring and upper strata, seal ring comprises in the lower floor seal ring in the seal ring and upper strata in described, described seal plate comprises lower floor's seal plate and upper strata seal plate, lower floor's seal plate is corresponding with seal ring in the lower floor, the upper strata seal plate is corresponding with seal ring in the upper strata, and in the upper strata internal diameter of seal ring greater than the diameter of lower floor's seal plate.
5, fast plugging device for deep foundation pit precipitation well according to claim 4 is characterized in that seal ring is staggered fixing on the inner-outer wall of shut-in well cover in upper and lower outer seal ring of layer and the upper and lower layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100190871A CN100557146C (en) | 2008-01-11 | 2008-01-11 | Fast plugging device for deep foundation pit precipitation well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100190871A CN100557146C (en) | 2008-01-11 | 2008-01-11 | Fast plugging device for deep foundation pit precipitation well |
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| CN101215837A CN101215837A (en) | 2008-07-09 |
| CN100557146C true CN100557146C (en) | 2009-11-04 |
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| CNB2008100190871A Active CN100557146C (en) | 2008-01-11 | 2008-01-11 | Fast plugging device for deep foundation pit precipitation well |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345301A (en) * | 2011-07-08 | 2012-02-08 | 天津二十冶建设有限公司 | New method for plugging dewatering well in basement |
| CN103452125B (en) * | 2013-06-05 | 2015-06-17 | 中建保华建筑有限责任公司 | Rock gap water blocking structure and construction method on geologic condition of weathered rocks |
| CN103334445B (en) * | 2013-06-05 | 2015-04-08 | 中建保华建筑有限责任公司 | Spring mouth water sealing structure under geological conditions of moderately weathered rock and construction method of water sealing structure |
| CN103397651B (en) * | 2013-07-15 | 2015-07-01 | 十一冶建设集团有限责任公司 | Seal structure of concrete foundation slab of reserved water-collecting well |
| CN104196045B (en) * | 2014-08-28 | 2016-08-17 | 青岛海川建设集团有限公司 | Deep-well precipitation well head well-sealing device and method in underground garage foundation ditch |
| CN104563144A (en) * | 2014-12-04 | 2015-04-29 | 成都迅德科技有限公司 | Plugging structure |
| 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 |
| CN109537611A (en) * | 2018-12-06 | 2019-03-29 | 安徽省人防建筑设计研究院 | A kind of civil air defense constructions and installations pipe well plugging structure |
| CN109869116B (en) * | 2019-03-07 | 2021-11-23 | 东北大学 | Dewatering well plugging structure and construction method thereof |
| CN112681371A (en) * | 2020-12-10 | 2021-04-20 | 中铁十二局集团有限公司 | Construction and plugging method for pouring preformed hole in top plate of subway station |
| 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 |
| CN114703878A (en) * | 2022-05-07 | 2022-07-05 | 中建八局第二建设有限公司 | Plugging and draining device for dewatering well and construction method |
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| NL1016663C1 (en) * | 2000-11-21 | 2002-05-22 | Visser & Smit Bouw Bv | Device for sealing drill hole during and after drilling through wall, on opposite side of which there is water with pressure of up to ten atmospheres involves baseplate with central opening placed against wall and secured by anchors |
| CN2628715Y (en) * | 2003-07-09 | 2004-07-28 | 武楗棠 | Recoverable antitheft well surface sealing appartus |
| CN2703867Y (en) * | 2004-04-29 | 2005-06-08 | 钟仲良 | Hydraulic sucker rod well packer |
| CN201144424Y (en) * | 2008-01-11 | 2008-11-05 | 江苏南通二建集团有限公司 | Fast plugging device for deep foundation pit dewatering well |
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2008
- 2008-01-11 CN CNB2008100190871A patent/CN100557146C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1016663C1 (en) * | 2000-11-21 | 2002-05-22 | Visser & Smit Bouw Bv | Device for sealing drill hole during and after drilling through wall, on opposite side of which there is water with pressure of up to ten atmospheres involves baseplate with central opening placed against wall and secured by anchors |
| CN2628715Y (en) * | 2003-07-09 | 2004-07-28 | 武楗棠 | Recoverable antitheft well surface sealing appartus |
| CN2703867Y (en) * | 2004-04-29 | 2005-06-08 | 钟仲良 | Hydraulic sucker rod well packer |
| CN201144424Y (en) * | 2008-01-11 | 2008-11-05 | 江苏南通二建集团有限公司 | Fast plugging device for deep foundation pit dewatering well |
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| CN101215837A (en) | 2008-07-09 |
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