CN212801603U - Foundation pit bottom plate reserved precipitation plugging device - Google Patents
Foundation pit bottom plate reserved precipitation plugging device Download PDFInfo
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- CN212801603U CN212801603U CN202020555698.4U CN202020555698U CN212801603U CN 212801603 U CN212801603 U CN 212801603U CN 202020555698 U CN202020555698 U CN 202020555698U CN 212801603 U CN212801603 U CN 212801603U
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Abstract
The utility model provides a precipitation plugging device is reserved to foundation ditch bottom plate, includes steel pipe, water pump, fluke, its characterized in that: the diameter of the steel pipe is matched with that of the dewatering well pipe at the lower part of the bottom plate, the wall thickness of the steel pipe is more than or equal to 10mm, and the length of the steel pipe is more than or equal to 500 mm; the water pump is provided with a water pump water pumping steel pipe, the lower part of the water pump water pumping steel pipe is connected with the foundation pit water pumping steel pipe, and the upper part of the water pump water pumping steel pipe is connected with the water pump; the fluke is U-shaped reinforcing bar, and the both ends elbow length of U-shaped reinforcing bar is 100mm, and fluke length is 250 mm. The utility model discloses a precipitation plugging device is reserved to foundation ditch bottom plate has plugging device simple structure, the preparation is convenient, foundation ditch precipitation shutoff engineering safe and reliable, becomes the bottom plate and reserves the quick plugging device of exempting from to fill of precipitation entrance to a cave, and it is convenient to be under construction, and plugging device establishes multichannel water-proof measures, powerful guarantee one-time shutoff advantage that targets in place and reduce engineering cost.
Description
Technical Field
The utility model relates to a plugging device, specifically speaking are precipitation plugging device is reserved to foundation ditch bottom plate.
Background
With the vigorous development of construction projects in China, the number of corresponding foundation pit projects is continuously increased, the scale is increased, the depth of the foundation pit is deepened, and the foundation pit precipitation faces a new test under complex hydrogeological conditions. At present, foundation pits with large scale and deep depth are more in China, when a bottom plate is positioned in other strong permeable layers with pebbles and the like, pit-in-pit (water collecting pit, elevator shaft and the like) are influenced by underground water, construction difficulty is large, and secondary precipitation of a hole is reserved on a local bottom plate during foundation construction to ensure smooth construction of the pit-in-pit. However, the holes of the bottom plate are difficult to block due to the large underground water pressure of the parts, especially the traditional filling type blocking method is difficult to add under the condition that the dewatering wells around the foundation pit are stopped in the later period, and the direct blocking can cause more leakage gaps to be formed in the concrete under the water pressure, so that the construction compactness of the concrete cannot be ensured. Because long-term drainage makes most underground confined water gather in the precipitation well of this type of foundation ditch naturally, intangible greatly increased foundation ditch precipitation well water pressure and water yield, in case stop precipitation, the water level sharply rises, and great water pressure in the underground can directly lead to later stage bottom plate hole shutoff comparatively difficult.
Therefore, the known foundation pit bottom plate reserved precipitation plugging device has various inconveniences and problems.
Disclosure of Invention
The utility model aims at providing a safe and reliable's foundation ditch bottom plate reserves precipitation plugging device.
In order to achieve the above object, the technical solution of the present invention is:
the utility model provides a precipitation plugging device is reserved to foundation ditch bottom plate, includes steel pipe, water pump, fluke, its characterized in that:
the diameter of the steel pipe is matched with that of the dewatering well pipe at the lower part of the bottom plate, the wall thickness of the steel pipe is more than or equal to 10mm, and the length of the steel pipe is more than or equal to 500 mm; two water stopping wing rings with the space of 100mm are arranged on the outer side of the steel pipe; a plurality of bottom supports are arranged at the positions 50mm away from the bottom of the inner side of the steel pipe; two plugging steel plates with the thickness of 10mm are arranged at the bottom of the steel pipe, the diameter of one plugging steel plate is equal to the inner diameter of the steel pipe, and a hole with the diameter of 50mm is reserved in the center of the plugging steel plate; the diameter of the other sealing steel plate is 1/2 of the inner diameter of the steel pipe, a water pumping steel pipe with the length of 500mmDN50 is welded at the center, a nut matched with the water pumping steel pipe is processed after the outer side of the water pumping steel pipe is threaded, and two water outlet holes with the diameter of 30mm are symmetrically arranged at the position of the length 1/2 of the water pumping steel pipe; manufacturing two rubber gaskets with the thickness of 10mm, wherein the diameter of one rubber gasket is 1/2 of the inner diameter of the steel pipe, the diameter of one rubber gasket is larger than the outer diameter of the nut, and holes with the diameter of 50mm are reserved in the centers of the rubber gaskets;
the water pump is provided with a water pump water pumping steel pipe, the lower part of the water pump water pumping steel pipe is connected with the foundation pit water pumping steel pipe, and the upper part of the water pump water pumping steel pipe is connected with the water pump;
the fluke is U-shaped reinforcing bar, and the both ends elbow length of U-shaped reinforcing bar is 100mm, and fluke length is 250 mm.
The utility model discloses a precipitation plugging device is reserved to foundation ditch bottom plate can also adopt following technical measure to further realize.
The precipitation plugging device is reserved on the foundation pit base plate, wherein the steel pipe is a seamless steel pipe.
The dewatering plugging device is reserved on the foundation pit bottom plate, wherein the specification of the pumping steel pipe is equal to or larger than DN32 steel pipe.
The precipitation plugging device is reserved on the foundation pit bottom plate, wherein the U-shaped steel bars are III-grade steel bars with the diameter being more than or equal to 10 mm.
The dewatering plugging device is reserved on the foundation pit bottom plate, wherein the water stop wing ring is a steel plate with the width being more than or equal to 100 mm.
The dewatering plugging device is reserved on the foundation pit bottom plate, wherein the water stop wing ring is a steel plate with the thickness larger than or equal to 8 mm.
The dewatering plugging device is reserved on the foundation pit bottom plate, and the two water stop wing ring steel plates are perpendicular to the steel pipe axis.
The precipitation plugging device is reserved on the foundation pit bottom plate, wherein the bottom support is a supporting seat used for plugging the lower surface of the steel plate and provided with steel bar heads at equal intervals.
After the technical scheme is adopted, the utility model discloses a precipitation plugging device is reserved to foundation ditch bottom plate has following advantage:
1. the plugging device has simple structure and convenient manufacture;
2. the foundation pit dewatering plugging engineering is safe and reliable, and becomes a filling-free rapid plugging device for the reserved dewatering well opening of the bottom plate;
3. the construction is convenient, and plugging device establishes multichannel waterproofing measure, and the shutoff of forceful guarantee once targets in place, reduces engineering cost.
Drawings
Fig. 1 is a schematic structural view of a plugging device according to an embodiment of the present invention;
fig. 2 is a schematic view of a usage state of the plugging device according to the embodiment of the present invention;
fig. 3 is the utility model discloses the foundation ditch precipitation shutoff end state schematic diagram that finishes of use of plugging device.
In the figure: 1 water pump drinking-water pipe, 2 shutoff steel sheets, 3 steel pipes, 4 stagnant water wing rings, 5 flukes, 6 water pumps, 7 steel sheet collet, 8 nuts, 9 apopores, 10 the 1 st rubber circle, 11 the 2 nd rubber circle, 12 steel pipes that draw water, 13 bottom shutoff steel sheets, 14 steel pipe internal casting concrete, 15 steel pipe outside casting concrete.
Detailed Description
The present invention will be further described with reference to the following examples and accompanying drawings.
Example 1
The utility model discloses a precipitation plugging device is reserved to foundation ditch bottom plate, including steel pipe, water pump, fluke.
The utility model discloses a precipitation plugging device processing manufacturing method is reserved to foundation ditch bottom plate:
according to the method, a square hole with the side length of 1.4m and a precipitation well pipe with the diameter of 600mm and the depth of about 4.5m are reserved on the bottom plate of a foundation pit, the following steps are adopted:
(1) the steel pipe 3 is a seamless steel pipe with the diameter of 600mm, the thickness of 10mm and the length of 500 mm; two steel water-stopping wing rings 4 are arranged on the outer side of the steel pipe, the distance between each water-stopping wing ring and the top of the steel pipe is 100mm and 200mm respectively, the width of each wing ring is 100mm, and the thickness of each wing ring is 8 mm; and 8 steel bar heads with the length of 50mm are welded at the positions 50mm away from the bottom of the inner side of the steel pipe at equal intervals to serve as plugging steel plate bottom supports 7.
(2) Two 10mm thick plugging steel plates are arranged at the bottom of the steel pipe, the diameter of one plugging steel plate 2 is the same as the inner diameter of the steel pipe 3, and a hole with the diameter of 50mm is reserved in the center of the plugging steel plate; the diameter of the other bottom end sealing steel plate 13 is 1/2 of the inner diameter of the steel pipe, a water pumping steel pipe 12 with the length of 500mmDN50 is welded at the center, a nut 8 matched with the water pumping steel pipe is processed after the outer side of the water pumping steel pipe is threaded, and two water outlet holes 9 with the diameter of 30mm are symmetrically drilled at the position of the length 1/2 of the water pumping steel pipe. Processing two rubber gaskets with the thickness of 10mm, namely a No. 1 rubber ring 10, wherein the diameter of the rubber gasket is 1/2 of the inner diameter of the steel pipe; the diameter of the No. 2 rubber ring is slightly greater than the external diameter of the nut 8, and a hole with the diameter of 50mm is reserved in the centers of the two rubber gaskets.
(3) The water pumping steel pipe 1 of the water pump 6 is a DN32 steel pipe, the lower part of the steel pipe is connected with the water pumping steel pipe 12, and the upper part of the steel pipe is connected with the water pump 6;
(4) manufacturing a plurality of U-shaped III-grade steel bars with the diameter of 10mm, wherein the length of elbows at two ends is 100mm, and the length of an anchor fluke is 250 mm;
example 2
Fig. 2 is a schematic view of a usage state of the plugging device according to the embodiment of the present invention. Fig. 3 is the utility model discloses the foundation ditch precipitation shutoff end state schematic diagram that finishes of use of plugging device. The utility model discloses a foundation ditch bottom plate reserves precipitation plugging device's application method:
1. the distance between the top of the steel pipe with the length of 500mm and the structural surface of the bottom plate of the ground warehouse is 100mm (the thickness of the bottom plate is 400 mm), and the distance between the bottom of the steel pipe and the structural bottom of the bottom plate of the ground warehouse is 200 mm; and fixedly welding the steel pipe with the bottom rib of the bottom plate. The gap between the original concrete pipe and the inner lining of the steel pipe is sealed by sealing ointment, and the waterproof coiled material is effectively bonded with the outer wall of the steel pipe by a hot melting method. The outer side of the steel pipe is made of concrete which is one grade higher than that of the original structural bottom plate.
2. The foundation pit bottom plate reserved precipitation plugging device manufactured in the embodiment 1 is arranged at the bottommost part of a foundation pit bottom plate, one end of a pumping steel pipe 12 is sleeved with a plugging steel plate 13, a 1 st rubber ring 10, a 2 nd rubber ring 12 and a nut 8 respectively, the foundation pit bottom plate reserved precipitation plugging device is integrally placed in a precipitation well, a bottom plugging steel plate 2 is guaranteed to be stably placed on a steel plate bottom support 7, the nut is arranged at the top of the pumping steel pipe to guarantee that the position of a water outlet hole of the pumping steel pipe is located at the lower part of the plugging steel plate, and water is pumped by a water pump. And then carrying out full-welding on the steel pipe and the plugging bottom plate. When the strength of the concrete on the outer side of the steel pipe reaches 100%, the nut 8 is fastened to ensure that the rubber washer is clamped and water does not flow out; and the next procedure can be carried out after the leakage phenomenon is detected.
3. Three layers of U-shaped steel bar anchor flukes are welded in the steel pipe at intervals of 200mm in a plum blossom shape, III-grade steel bars with the U-shaped diameter of 10mm are welded, the length of elbows at two ends is 100mm, and the length of the anchor flukes is 250 mm. And the upper reinforcing steel bars of the bottom plate are pulled through from the top of the steel pipe and are welded and connected with the original reinforcing steel bars of the peripheral bottom plate. And concrete 15 is poured outside the steel pipe, concrete 14 is poured inside the steel pipe on the inner side of the steel pipe, and the concrete grade is the same as that of the concrete on the outer side of the steel pipe. The concrete adopts C40P8 micro-expansive concrete, is poured in layers and is compacted by vibration, and the curing time is not less than 14 days. And finishing filling-free rapid plugging of the reserved dewatering well opening of the foundation pit bottom plate. Fig. 3 is the utility model discloses the foundation ditch precipitation shutoff end state schematic diagram that finishes of use of plugging device.
The utility model has the advantages of substantive characteristics and the technological progress that is showing, the utility model discloses a precipitation plugging device is reserved to foundation ditch bottom plate is a foundation ditch bottom plate and is reserved precipitation entrance to a cave exempt from to fill quick plugging device, and it is comparatively difficult to lead to bottom plate hole shutoff when the bottom plate receives groundwater to influence, adopts foundation ditch bottom plate to reserve precipitation entrance to a cave plugging device construction can be more convenient, quick, effectual solution. Increase steel pipe device shutoff precipitation well in the bottom plate reservation hole, the inside and outside concrete of plugging device can not receive the influence of groundwater when pouring in-process and shutoff steel sheet and connect, and need not fill the shutoff in the former precipitation well, and practice thrift the cost, the construction is convenient, and plugging device multichannel waterproofing measure guarantees that once shutoff targets in place, other requirements such as fully provided building service function.
The above embodiments are provided only for the purpose of illustration, and not for the purpose of limitation, and those skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also fall within the scope of the present invention, which is defined by the claims.
Claims (8)
1. The utility model provides a precipitation plugging device is reserved to foundation ditch bottom plate, includes steel pipe, water pump, fluke, its characterized in that:
the diameter of the steel pipe is matched with that of the dewatering well pipe at the lower part of the bottom plate, the wall thickness of the steel pipe is more than or equal to 10mm, and the length of the steel pipe is more than or equal to 500 mm; two water stopping wing rings with the space of 100mm are arranged on the outer side of the steel pipe; a plurality of bottom supports are arranged at the positions 50mm away from the bottom of the inner side of the steel pipe; two plugging steel plates with the thickness of 10mm are arranged at the bottom of the steel pipe, the diameter of one plugging steel plate is equal to the inner diameter of the steel pipe, and a hole with the diameter of 50mm is reserved in the center of the plugging steel plate; the diameter of the other sealing steel plate is 1/2 of the inner diameter of the steel pipe, a water pumping steel pipe with the length of 500mmDN50 is welded at the center, a nut matched with the water pumping steel pipe is processed after the outer side of the water pumping steel pipe is threaded, and two water outlet holes with the diameter of 30mm are symmetrically arranged at the position of the length 1/2 of the water pumping steel pipe; manufacturing two rubber gaskets with the thickness of 10mm, wherein the diameter of one rubber gasket is 1/2 of the inner diameter of the steel pipe, the diameter of one rubber gasket is larger than the outer diameter of the nut, and holes with the diameter of 50mm are reserved in the centers of the rubber gaskets;
the water pump is provided with a water pump water pumping steel pipe, the lower part of the water pump water pumping steel pipe is connected with the foundation pit water pumping steel pipe, and the upper part of the water pump water pumping steel pipe is connected with the water pump;
the fluke is U-shaped reinforcing bar, and the both ends elbow length of U-shaped reinforcing bar is 100mm, and fluke length is 250 mm.
2. The foundation pit floor reserved precipitation plugging device of claim 1, wherein the steel pipe is a seamless steel pipe.
3. The foundation pit bottom plate reserved precipitation plugging device as claimed in claim 1, wherein the specification of the pumping steel pipe is more than or equal to DN32 steel pipe.
4. The foundation pit bottom plate reserved precipitation plugging device as claimed in claim 1, wherein the U-shaped steel bars are III-grade steel bars with the diameter being more than or equal to 10 mm.
5. The foundation pit bottom plate reserved precipitation plugging device as claimed in claim 1, wherein the water stop wing ring is a steel plate with a width of more than or equal to 100 mm.
6. The foundation pit bottom plate reserved precipitation plugging device as claimed in claim 1, wherein the water stop wing ring is a steel plate with the thickness of more than or equal to 8 mm.
7. The foundation pit floor reserved precipitation plugging device of claim 1, wherein the water stop wing ring is perpendicular to the steel pipe axis.
8. The foundation pit floor reserved precipitation plugging device as claimed in claim 1, wherein the bottom support is provided with equally spaced steel bar heads as a support seat for plugging the lower surface of the steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020555698.4U CN212801603U (en) | 2020-04-15 | 2020-04-15 | Foundation pit bottom plate reserved precipitation plugging device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020555698.4U CN212801603U (en) | 2020-04-15 | 2020-04-15 | Foundation pit bottom plate reserved precipitation plugging device |
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| Publication Number | Publication Date |
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| CN212801603U true CN212801603U (en) | 2021-03-26 |
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| CN202020555698.4U Active CN212801603U (en) | 2020-04-15 | 2020-04-15 | Foundation pit bottom plate reserved precipitation plugging device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115288174A (en) * | 2022-09-01 | 2022-11-04 | 中铁第六勘察设计院集团有限公司 | Dewatering well plugging device and construction method thereof |
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2020
- 2020-04-15 CN CN202020555698.4U patent/CN212801603U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115288174A (en) * | 2022-09-01 | 2022-11-04 | 中铁第六勘察设计院集团有限公司 | Dewatering well plugging device and construction method thereof |
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