CN211172024U - A block structure for foundation ditch precipitation well - Google Patents
A block structure for foundation ditch precipitation well Download PDFInfo
- Publication number
- CN211172024U CN211172024U CN201921537347.4U CN201921537347U CN211172024U CN 211172024 U CN211172024 U CN 211172024U CN 201921537347 U CN201921537347 U CN 201921537347U CN 211172024 U CN211172024 U CN 211172024U
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- sleeve pipe
- bed course
- waterproofing membrane
- flange
- foundation
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Abstract
The utility model relates to a block structure for foundation ditch precipitation well relates to precipitation well block structure technical field, including sleeve pipe and the basic bed course in inserting precipitation well, be provided with soleplate on the basic bed course, laid waterproofing membrane between basic bed course and the soleplate, waterproofing membrane extends to the sleeve pipe on the outer wall outside precipitation well head, waterproofing membrane and the laminating of sleeve pipe outer wall, the sleeve pipe outer wall just is located waterproofing membrane and keeps away from the one end of basic bed course and has seted up the draw-in groove, the draw-in groove encircles sleeve pipe circumference and is provided with a week, waterproofing membrane keeps away from the one end hot melt of basic bed course in the draw-in groove, waterproofing membrane and basic bed course hot melt bond. Waterproofing membrane has good water proofness, and waterproofing membrane after the hot melt forms seamless airtight with the foundation bed course, and waterproofing membrane hot melt is in the draw-in groove for waterproofing membrane and sleeve pipe outer wall connection are reliable, can not form the space, can effectively eliminate foundation slab percolating water quality hidden danger.
Description
Technical Field
The utility model belongs to the technical field of precipitation well block structure technique and specifically relates to a block structure for foundation ditch precipitation well is related to.
Background
Along with the development and expansion of the building industry, buildings are continuously pulled out of the ground in different regions and different geographic environments, for areas with abundant underground water resources, in the construction process of open excavation foundation pits, the normal construction of the foundation pits is influenced due to the fact that the underground water level is high, the underground water level is reduced by pumping and discharging pressure-bearing water in foundation pit dewatering wells in the traditional method, and the plugging construction of the dewatering wells can be related after the pouring of basement bottom plates is completed.
In the prior art, when the waterproof coiled material is laid and the bottom plate is concreted, the waterproof coiled material and the joint of the concrete and the sleeve cannot be compact, so that the foundation pit dewatering well is easy to be blocked untight, a gap is formed, and the quality hidden trouble of water leakage of the foundation bottom plate is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a block structure for foundation ditch precipitation well has that foundation ditch precipitation well shutoff is tight to eliminate the advantage of soleplate percolating water quality hidden danger.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides a block structure for foundation ditch precipitation well, including sleeve pipe and the basic bed course that inserts in the precipitation well, be provided with soleplate on the basic bed course, laid waterproofing membrane between basic bed course and the soleplate, waterproofing membrane extends to the sleeve pipe on the outer wall outside precipitation well head, waterproofing membrane and the laminating of sleeve pipe outer wall, the draw-in groove has been seted up to the sleeve pipe outer wall and the one end that is located waterproofing membrane and keeps away from basic bed course, the draw-in groove encircles sleeve pipe circumference and is provided with a week, waterproofing membrane keeps away from the one end hot melt of basic bed course in the draw-in groove, waterproofing membrane and.
Through adopting above-mentioned technical scheme, waterproofing membrane has good water proofness, and waterproofing membrane after the hot melt forms seamless airtight with basic bed course, and waterproofing membrane hot melt is in the draw-in groove for waterproofing membrane and sleeve pipe outer wall connection are reliable, can not form the space, can effectively eliminate soleplate percolating water quality hidden danger.
The utility model discloses further set up to: at least one water stopping wing ring is arranged on the sleeve and along the height direction of the sleeve.
Through adopting above-mentioned technical scheme, stagnant water wing ring not only can prevent the soleplate seepage, has reinforcement and guard action to the sleeve pipe moreover for the sleeve pipe is difficult for being buckled in the use.
The utility model discloses further set up to: the flange plate is horizontally welded at the pipe orifice of the casing pipe outside the dewatering well, the flange cover plate used for plugging the pipe orifice of the casing pipe is arranged on the casing pipe, and the flange cover plate is fixed on the casing pipe through flange screws.
By adopting the technical scheme, the flange connection has the advantages of high strength and good sealing property, and can bear larger pressure, and the connection method is quick in construction, simple and practical.
The utility model discloses further set up to: and a rubber gasket is arranged between the flange plate and the flange cover plate.
By adopting the technical scheme, the rubber gasket can ensure that the joint does not leak after the flange screw is screwed down, and the plugging effect of the dewatering well is improved.
The utility model discloses further set up to: the joint of the flange cover plate, the outer wall of the sleeve and the flange plate is brushed with a polyurethane layer.
By adopting the technical scheme, the polyurethane can be used as an adhesive, has good adhesion, can seamlessly bond the flange cover plate, the outer wall of the sleeve and the joint between the flange plate and the flange plate, prevents water from leaking from the tiny joint, and further improves the plugging effect of the dewatering well.
The utility model discloses further set up to: and an expansion water stop glue is coated at the joint of the sleeve and the foundation mat layer.
By adopting the technical scheme, the expansion water stop glue is a water expansion single-liquid type sealant, the volume of the sealant is expanded after the sealant is soaked in water, gaps can be filled, the excellent water stop effect can be exerted, water is prevented from permeating from the joint of the sleeve and the foundation mat layer, and the dewatering well is further plugged tightly.
The utility model discloses further set up to: the dewatering well is sequentially filled with a graded sandstone layer, a dry cement layer and a concrete layer from bottom to top.
By adopting the technical scheme, the graded sandstone has certain strength and stability as a base layer filled in the casing, and as low water seeps out from the deep part of the dewatering well, the graded sandstone can form slurry after being added with water, can be hardened in the air or in the water, can firmly glue materials such as sand, stone and the like together, has higher strength after being hardened, can resist the erosion of fresh water or salt-containing water, and has good plugging effect on the dewatering well. The materials filled in the sleeve are common materials in construction, and the sleeve is low in cost, economical and practical.
To sum up, the utility model discloses a beneficial technological effect does:
1. the waterproof coiled material is hot-melted, so that the waterproof coiled material is bonded with the foundation cushion layer, and forms seamless seal with the outer wall of the sleeve, and the waterproof effect is good.
2. The expansion water stop glue is used for plugging the joint between the sleeve and the foundation cushion layer, so that the joint is not seeped or leaked, and the plugging effect of the dewatering well is improved.
3. The plugging structure is convenient in material taking, is constructed by utilizing a construction site, is cheap and easy to obtain, reduces the construction cost and has good economic benefit.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Reference numerals: 1. a sleeve; 2. a base mat layer; 3. a foundation slab; 4. waterproof coiled materials; 5. a card slot; 6. a water-stopping wing ring; 7. a flange cover plate; 8. a rubber gasket; 9. swelling water stop glue; 10. a graded sandstone layer; 11. a layer of dry cement; 12. a concrete layer; 13. a dewatering well.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model discloses a block structure for foundation ditch precipitation well, as shown in figure 1, including inserting sleeve pipe 1 and the foundation bed course 2 in precipitation well 13, be provided with soleplate 3 on the foundation bed course 2, sleeve pipe 1 highly is not less than soleplate 3 and foundation bed course 2 thickness sum, and sleeve pipe 1 adopts the seamless steel pipe of hot rolling. At least one water stopping wing ring 6 is arranged on the sleeve 1 along the height direction of the sleeve 1, and the water stopping wing ring 6 is made of a steel plate with the thickness larger than 6 mm.
As shown in fig. 1, waterproofing membrane 4 has been laid between foundation bed course 2 and the soleplate 3, waterproofing membrane 4 extends to sleeve pipe 1 on the outer wall of dewatering well 13 well head, waterproofing membrane 4 and the laminating of sleeve pipe 1 outer wall, draw-in groove 5 has been seted up to the one end that sleeve pipe 1 outer wall just is located waterproofing membrane 4 and keeps away from foundation bed course 2, draw-in groove 5 encircles 1 circumference of sleeve pipe and is provided with a week, keep away from foundation bed course 2's one end hot melt in draw-in groove 5 with waterproofing membrane 4, the partial hot melt bonding of waterproofing membrane 4 and the laminating of foundation bed course 2. Make waterproofing membrane 4 and foundation bed course 2 form seamless airtight, waterproofing membrane 4 and the outer wall connection of sleeve pipe 1 are reliable, can not form the space, can effectively eliminate 3 seepage water quality hidden dangers of soleplate.
As shown in fig. 1, in order to further tightly seal the dewatering well 13, an expansion water stop glue 9 is coated at the joint of the casing 1 and the foundation mat 2, and the expansion water stop glue 9 can prevent water from permeating through the joint of the casing 1 and the foundation mat 2.
As shown in fig. 1, the top of the casing 1 is connected by a flange, a flange is horizontally welded on the end of the casing 1 in advance, and is subjected to protection and rust-proof treatment, a flange cover plate 7 is made of a steel plate, a rubber gasket 8 is arranged between the flange and the flange cover plate 7, the thickness of the rubber gasket 8 is 10mm, and the flange cover plate 7 is fixed on the casing 1 by flange screws. The rubber gasket 8 can ensure that the joints do not leak after the flange screws are screwed down, the flange connection has the advantages of high strength and good sealing performance, and can bear larger pressure, and the connection method is quick in construction, simple and practical.
As shown in figure 1, in order to further improve the plugging effect of the dewatering well 13, polyurethane layers are brushed on the flange cover plate 7, the outer wall of the casing 1 and the joint between the flange plate and the flange cover plate 7. The polyurethane can be used as adhesive, has good adhesion, and can prevent water from leaking from the seam.
After the foundation pit dewatering well 13 is used, the dewatering well 13 is plugged, graded sandstone is backfilled from the bottom of the dewatering well 13 to 2m below a well head, the particle size of the sandstone is not more than 50mm, ordinary Portland dry cement is backfilled from 2m below the well head to the range of the well head, then the sleeve 1 is sealed through the flange cover plate 7, and after the flange cover plate 7 is confirmed to be sealed and qualified, concrete is poured on the upper part of the flange cover plate 7.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. The utility model provides a block structure for foundation ditch precipitation well, is including inserting sleeve pipe (1) and basic bed course (2) in precipitation well (13), be provided with foundation slab (3) on basic bed course (2), its characterized in that: waterproof roll (4) have been laid between basic bed course (2) and soleplate (3), waterproof roll (4) extend to sleeve pipe (1) on the outer wall of precipitation well (13) well head, waterproof roll (4) and the laminating of sleeve pipe (1) outer wall, draw-in groove (5) have been seted up to sleeve pipe (1) outer wall and the one end that is located waterproof roll (4) and keeps away from basic bed course (2), draw-in groove (5) encircle sleeve pipe (1) circumference and are provided with a week, the one end hot melt that basic bed course (2) were kept away from in waterproof roll (4) is in draw-in groove (5), waterproof roll (4) and basic bed course (2) hot melt bond.
2. The plugging structure for a dewatering well in a foundation pit according to claim 1, wherein: at least one water stopping wing ring (6) is arranged on the sleeve (1) along the height direction of the sleeve (1).
3. The plugging structure for a dewatering well in a foundation pit according to claim 1, wherein: the pipe orifice horizontal welding of sleeve pipe (1) outside precipitation well (13) has the ring flange, be provided with on sleeve pipe (1) and be used for shutoff sleeve pipe (1) orificial flange apron (7), flange apron (7) are fixed on sleeve pipe (1) through the flange screw.
4. The plugging structure for a foundation pit dewatering well according to claim 3, wherein: and a rubber gasket (8) is arranged between the flange plate and the flange cover plate (7).
5. The plugging structure for a foundation pit dewatering well according to claim 3, wherein: and polyurethane layers are brushed on the flange cover plate (7), the outer wall of the sleeve (1) and the joint of the flange plate and the flange cover plate (7).
6. The plugging structure for a dewatering well in a foundation pit according to claim 1, wherein: and an expansion water stop glue (9) is coated at the joint of the sleeve (1) and the foundation mat layer (2).
7. The plugging structure for a dewatering well in a foundation pit according to claim 1, wherein: the dewatering well (13) is sequentially filled with a graded sandstone layer (10), a dry cement layer (11) and a concrete layer (12) from bottom to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921537347.4U CN211172024U (en) | 2019-09-16 | 2019-09-16 | A block structure for foundation ditch precipitation well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921537347.4U CN211172024U (en) | 2019-09-16 | 2019-09-16 | A block structure for foundation ditch precipitation well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211172024U true CN211172024U (en) | 2020-08-04 |
Family
ID=71818367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921537347.4U Withdrawn - After Issue CN211172024U (en) | 2019-09-16 | 2019-09-16 | A block structure for foundation ditch precipitation well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211172024U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112832279A (en) * | 2021-01-05 | 2021-05-25 | 江苏凯伦建材股份有限公司 | Waterproof structure and method for dewatering well of underground foundation pit |
| 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 |
-
2019
- 2019-09-16 CN CN201921537347.4U patent/CN211172024U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112832279A (en) * | 2021-01-05 | 2021-05-25 | 江苏凯伦建材股份有限公司 | Waterproof structure and method for dewatering well of underground foundation pit |
| 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 |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200804 Effective date of abandoning: 20220808 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200804 Effective date of abandoning: 20220808 |