CN201144424Y - Fast plugging device for deep foundation pit dewatering well - Google Patents
Fast plugging device for deep foundation pit dewatering well Download PDFInfo
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- CN201144424Y CN201144424Y CNU2008200307908U CN200820030790U CN201144424Y CN 201144424 Y CN201144424 Y CN 201144424Y CN U2008200307908 U CNU2008200307908 U CN U2008200307908U CN 200820030790 U CN200820030790 U CN 200820030790U CN 201144424 Y CN201144424 Y CN 201144424Y
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Abstract
The utility model relates to a deep foundation ditch precipitation well fast plugging device which consists of a well plugging sleeve, a well plugging cover pedestal, a well plugging cover, an outer water stop ring, an inner water stop ring and a water stop board, the well plugging cover pedestal is an annular pedestal which is fixedly connected with the lower part of the inner wall of the well plugging cover vertically and is welded with three or more than three bolts which divide the circumference into equal parts. The well plugging cover is provided with bolt holes corresponding to the bolts at the well plugging cover pedestal. The inner and the outer water stop rings are fixedly connected with the inner and the outer walls of the well plugging cover vertically. The water stop board is connected with the inner water stop ring by welding or by a flange. The device has simple structure, low manufacturing cost, convenient usage and wide application; the uniform construction technology is used for replacing various kinds of well plugging technologies at present, thereby achieving fast plugging speed, the very low cost of the construction for plugging the well, no construction risk and no potential safety hazard, stops pumping the ground water immoderately and is good for the environmental protection.
Description
Technical field
The utility model relates to a kind of deep foundation pit precipitation well plugging device of building field underground structure construction, is used for underground structure completion back to 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 in the utility model 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 scheme that its technical problem that solves the utility model adopts 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 the utility model device 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, the further technical scheme that its technical problem that solves the utility model adopts is as follows: described shut-in well lid center has through hole and welding is direct, and this directly is threaded with its supporting plug.
For guaranteeing effective shutoff to deep foundation pit precipitation well, the utility model 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 the utility model fast plugging device for deep foundation pit precipitation well 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.
The beneficial effects of the utility model are 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 utility model shut-in well device overall structure vertical profile schematic diagram.
Fig. 2 covers vertical view for the utility model shut-in well device embodiment 1 abandons the pump sump shut-in well.
Fig. 3 shows schematic diagram for the A-A of Fig. 2 cuts open.
Fig. 4 finishes the shutoff schematic diagram for the utility model shut-in well device embodiment 1 abandons pump sump
Fig. 5 covers vertical view for the utility model shut-in well device embodiment 2 gets the pump sump shut-in well.
Fig. 6 shows schematic diagram for the B-B of Fig. 5 cuts open.
Fig. 7 finishes the shutoff schematic diagram for the utility model shut-in well device embodiment 2 gets pump sump.
The specific embodiment
With reference to the accompanying drawings and in conjunction with the embodiments the utility model is described in further detail.But the utility model is not limited to given example.
As Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, among the embodiment 1, the utility model fast plugging device for deep foundation pit precipitation well 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, the utility model fast plugging device for deep foundation pit precipitation well 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 welding is direct, and this directly 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 |
|---|---|---|---|
| CNU2008200307908U CN201144424Y (en) | 2008-01-11 | 2008-01-11 | Fast plugging device for deep foundation pit dewatering well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200307908U CN201144424Y (en) | 2008-01-11 | 2008-01-11 | Fast plugging device for deep foundation pit dewatering well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201144424Y true CN201144424Y (en) | 2008-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200307908U Expired - Lifetime CN201144424Y (en) | 2008-01-11 | 2008-01-11 | Fast plugging device for deep foundation pit dewatering well |
Country Status (1)
| Country | Link |
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| CN (1) | CN201144424Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100557146C (en) * | 2008-01-11 | 2009-11-04 | 江苏南通二建集团有限公司 | Fast plugging device for deep foundation pit precipitation well |
| CN102839691A (en) * | 2011-06-22 | 2012-12-26 | 南通海洲建设集团有限公司 | Quick sealing method and device for sandless cement pipe deep well dewatering wellhead |
-
2008
- 2008-01-11 CN CNU2008200307908U patent/CN201144424Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100557146C (en) * | 2008-01-11 | 2009-11-04 | 江苏南通二建集团有限公司 | Fast plugging device for deep foundation pit precipitation well |
| CN102839691A (en) * | 2011-06-22 | 2012-12-26 | 南通海洲建设集团有限公司 | Quick sealing method and device for sandless cement pipe deep well dewatering wellhead |
| CN102839691B (en) * | 2011-06-22 | 2015-04-15 | 南通海洲建设集团有限公司 | Quick sealing method and device for sandless cement pipe deep well dewatering wellhead |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080111 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |