CN216446013U - Dewatering well gradual change section well plugging device - Google Patents
Dewatering well gradual change section well plugging device Download PDFInfo
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- CN216446013U CN216446013U CN202123135507.2U CN202123135507U CN216446013U CN 216446013 U CN216446013 U CN 216446013U CN 202123135507 U CN202123135507 U CN 202123135507U CN 216446013 U CN216446013 U CN 216446013U
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- steel sleeve
- well
- water
- dewatering well
- guide pipe
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- 230000008859 change Effects 0.000 title abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 79
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 76
- 239000010959 steel Substances 0.000 claims abstract description 76
- 239000004575 stone Substances 0.000 claims description 11
- 239000004570 mortar (masonry) Substances 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims 2
- 238000007789 sealing Methods 0.000 abstract description 20
- 230000008595 infiltration Effects 0.000 abstract description 5
- 238000001764 infiltration Methods 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of a dewatering well sealing device, and particularly relates to a dewatering well gradual-change section sealing device which comprises a dewatering well pipe, a steel sleeve, a water guide pipe and a control valve, wherein the water guide pipe is arranged on the water guide pipe; the steel sleeve is a steel sleeve with a gradually-changed section, and the large-diameter end of the steel sleeve is sleeved on the upper part of a well pipe of the dewatering well; the water guide pipe is connected with the small-diameter end of the steel sleeve; the control valve is arranged on the water guide pipe; compare in current shut-in well device, this shut-in well device utilizes the gradual change cross-section steel casing pipe to form the backfill space in less space, conveniently utilizes self pressure to discharge water from the aqueduct more when the phenomenon of gushing water appears, saves to use the water pump to draw water, saves the cost, can utilize control flap control rivers in time to discharge unnecessary infiltration, avoids the shutoff back water pressure too big, causes destruction.
Description
Technical Field
The utility model belongs to the technical field of dewatering well sealing devices, and particularly relates to a dewatering well gradual-change cross-section sealing device.
Background
During construction of building engineering foundations, deep wells are often used for reducing underground water, and concrete or filled gravel for the dewatering wells needs to be sealed after construction is completed. When the dewatering well is sealed, if the underground water pressure and the water inflow are small, concrete or broken stones can be directly poured into the well, then the steel cover plate and the dewatering well casing are welded and sealed, but when the underground water pressure or the water inflow is large, even if the concrete is poured into the dewatering well casing, the underground water seeps out quickly, or the underground water is not completely taken out by a water pump, the well casing is filled with the underground water, and the hidden danger of the sealing and welding quality or the blockage cannot be caused.
Notice No. is CN 201172828Y's utility model discloses a precipitation well shut-in device, when having solved groundwater pressure or the volume of gushing water great, the problem of shutoff quality hidden danger or unable shutoff probably is caused to current method of sealing precipitation well, nevertheless because steel casing pipe be the cross-section design such as, therefore can not utilize self pressure to discharge water from the aqueduct when having the phenomenon of gushing water to appear, and the big scheduling problem of grit backfill volume in the steel casing pipe.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects that the well sealing operation is not facilitated or the construction quality problem caused by water inrush is caused when the water inrush phenomenon occurs in the prior art and the sand and stone backfill amount in a steel sleeve is large, and provides a dewatering well sealing device which can discharge water from a water guide pipe by using the self pressure when the water inrush phenomenon occurs and reduce the sand and stone backfill amount, in particular to a dewatering well gradual-section well sealing device.
The utility model provides a well plugging device for a gradient cross section of a dewatering well, which comprises a dewatering well pipe, a steel sleeve, a water guide pipe and a control valve, wherein the water guide pipe is arranged on the well pipe; the steel sleeve is a steel sleeve with a gradually-changed section, and the large-diameter end of the steel sleeve is sleeved at the upper part of the dewatering well casing; the water guide pipe is connected with the small diameter end of the steel sleeve; the control valve is arranged on the water guide pipe.
Preferably, the steel sleeve comprises an upper truncated cone-shaped steel sleeve and a lower cylindrical steel sleeve, the diameter of the bottom end of the upper truncated cone-shaped steel sleeve is consistent with that of the lower cylindrical steel sleeve, the bottom end of the upper truncated cone-shaped steel sleeve is connected with the top end of the lower cylindrical steel sleeve, the top of the upper truncated cone-shaped steel sleeve is connected with the bottom of the water guide pipe, and the lower cylindrical steel sleeve is sleeved on the upper portion of the dewatering well casing.
Preferably, the outer wall of the lower cylindrical steel sleeve is provided with a water stop wing ring.
Preferably, the steel casing is provided with crushed stones therein.
Preferably, the water guide pipe further comprises a top protection concrete pier which is arranged outside the water guide pipe.
Preferably, the outer wall of the upper part of the dewatering well casing is provided with a joint filling mortar layer, and the lower cylindrical steel casing is sleeved outside the joint filling mortar layer.
Preferably, the dewatering well pipe is internally provided with a pipe well backfill material.
Has the advantages that:
1. the well sealing device solves the problems of high water burst and well sealing difficulty or incapability of plugging when the foundation pit dewatering well with higher underground water level and water pressure is sealed, and can avoid the quality defect caused by water burst.
2. Compare in current shut-in well device, this shut-in well device utilizes the gradual change cross-section steel casing pipe to form the backfill space in less space, conveniently utilizes self pressure to discharge water from the aqueduct more when the phenomenon of gushing water appears, saves to use the water pump to draw water, saves the cost, can utilize control flap control rivers in time to discharge unnecessary infiltration, avoids the shutoff back water pressure too big, causes destruction.
3. The well sealing device is simple in structure, and flange plate welding and bolt connection are omitted.
4. The well sealing device utilizes the design of the gradually-changed section, reduces the backfill space at the upper part, reduces the backfill amount of broken stones and saves materials.
5. Compared with the existing well sealing device, the top protection concrete abutment poured around the water guide pipe has the advantages that the size is greatly reduced, the material is saved, and the influence on subsequent construction is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a well plugging device with a gradually-changed cross section for a dewatering well in the implementation of the utility model.
FIG. 2 is a top view of a steel casing of the well plugging device with gradually changed cross-section for dewatering well in the implementation of the present invention.
Description of reference numerals:
1-dewatering well casing;
2-steel casing pipe; 21-upper truncated cone-shaped steel sleeve; 22-lower cylindrical steel casing;
3-a water conduit; 4-control of the valve; 5-water stopping wing ring; 6-crushing stones; 7-top protection concrete abutment; 8-joint filling mortar layer; 9-tube well backfill.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and fig. 2, the embodiment provides a well plugging device with a gradually-changed cross section for a dewatering well, which comprises a dewatering well casing 1, a steel casing 2, a water guide pipe 3 and a control valve 4; the steel sleeve 2 is a steel sleeve with a gradually-changed section, and the large-diameter end of the steel sleeve is sleeved on the upper part of the dewatering well casing 1; the water guide pipe 3 is connected with the small diameter end of the steel sleeve 2; the control valve 4 is installed on the water introduction pipe 3.
In this embodiment, the steel casing 2 is designed to be a steel casing with a gradually-changing cross section, and the steel casing 2 comprises an upper truncated cone-shaped steel casing 21 and a lower cylindrical steel casing 22, the diameter of the bottom end of the upper truncated cone-shaped steel casing 21 is consistent with that of the lower cylindrical steel casing 22, the bottom end of the upper truncated cone-shaped steel casing 21 is connected with the top end of the lower cylindrical steel casing 22, the top of the upper truncated cone-shaped steel casing 21 is connected with the bottom of the water guide pipe 3, the lower cylindrical steel casing 22 is sleeved on the upper portion of the dewatering well casing pipe 1, the steel casing 2 forms a backfill space with a smaller space, when a water gushing phenomenon occurs, self pressure is more conveniently utilized to discharge water from the water guide pipe 3, water pumping by a water pump is omitted, the cost is saved, when water is discharged, water flow can be controlled by a control valve 4 to timely discharge redundant water seepage, and damage caused by overlarge water pressure after plugging is avoided.
Compared with the prior art, the process of flange plate welding and bolt connection is omitted, so that the well sealing device is simple in structure and simpler in erection operation.
Further, the outer wall of the lower cylindrical steel sleeve 22 is provided with a water stop wing ring 5.
In this embodiment, the water-stop wing ring 5 is welded on the outer wall of the steel sleeve 2, which not only has the function of water prevention and leakage prevention, but also has the function of reinforcing ribs and fixation, wherein the water-stop wing ring 5 is used for preventing the water leakage of the structure, the principle is to increase the length by several times, prolong the water infiltration path, and greatly increase the infiltration resistance to achieve the purpose of impermeability.
Further, crushed stone 6 is arranged inside the steel casing 2.
In the embodiment, the broken stone 6 is filled in the steel sleeve 2, which is beneficial to drainage, and the steel sleeve 2 forms a smaller backfill space, so that the backfill amount of the broken stone 6 is reduced, and the material is saved.
Further, still include top protection concrete abutment 7, top protection concrete abutment 7 arranges in aqueduct 3 outside.
In this embodiment, top protection concrete abutment 7 is pour outside aqueduct 3, because the diameter of upper portion round platform shape steel casing 21 and aqueduct 3 is less for the volume of top protection concrete abutment 7 reduces greatly, has saved the material, has reduced the influence to follow-up construction, and top protection concrete abutment 7 can select circularly or squarely according to aqueduct 3.
Further, a joint filling mortar layer 8 is arranged on the outer wall of the upper portion of the dewatering well casing pipe 1, and a lower cylindrical steel sleeve 22 is sleeved outside the joint filling mortar layer 8.
In the embodiment, the lower cylindrical steel sleeve 22 is sleeved outside the joint filling mortar layer 8, so that the steel sleeve 2 is in seamless sleeve connection with the upper part of the dewatering well casing 1.
Furthermore, a tube well backfill material 9 is arranged in the dewatering well tube 1.
The well plugging device with the gradually changed section of the dewatering well provided by the embodiment has the following beneficial effects:
1. the well sealing device solves the problems of high water burst and well sealing difficulty or incapability of plugging when the foundation pit dewatering well with higher underground water level and water pressure is sealed, and can avoid the quality defect caused by water burst.
2. Compare in current shut-in well device, this shut-in well device utilizes the gradual change cross-section steel casing pipe to form the backfill space in less space, conveniently utilizes self pressure more when the phenomenon of gushing water to discharge water from aqueduct 3, saves to use the water pump to draw water, saves the cost, can utilize control flap 4 control rivers in time to discharge unnecessary infiltration, avoids the shutoff back water pressure too big, causes the destruction.
3. The well sealing device is simple in structure, and flange plate welding and bolt connection are omitted.
4. The well sealing device utilizes the design of the gradually-changed section, reduces the backfill space at the upper part, reduces the backfill amount of the broken stone 6 and saves materials.
5. Compared with the existing well sealing device, the top protection concrete abutment 7 poured around the water guide pipe 3 has the advantages that the volume is greatly reduced, the material is saved, and the influence on subsequent construction is reduced.
The present invention is not limited to the above preferred embodiments, and any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A well plugging device with a gradually-changed section of a dewatering well is characterized by comprising a dewatering well casing (1), a steel sleeve (2), a water guide pipe (3) and a control valve (4); the steel sleeve (2) is a steel sleeve with a gradually-changed section, and the large-diameter end of the steel sleeve is sleeved at the upper part of the dewatering well casing (1); the water guide pipe (3) is connected with the small-diameter end of the steel sleeve (2); the control valve (4) is arranged on the water guide pipe (3).
2. The well plugging device for the gradual-change cross section of the dewatering well according to claim 1, wherein the steel sleeve (2) comprises an upper circular truncated cone-shaped steel sleeve (21) and a lower cylindrical steel sleeve (22), the diameter of the bottom end of the upper circular truncated cone-shaped steel sleeve (21) is consistent with that of the lower cylindrical steel sleeve (22), the bottom end of the upper circular truncated cone-shaped steel sleeve (21) is connected with the top end of the lower cylindrical steel sleeve (22), the top of the upper circular truncated cone-shaped steel sleeve (21) is connected with the bottom of the water guide pipe (3), and the lower cylindrical steel sleeve (22) is sleeved on the upper portion of the dewatering well casing (1).
3. The well plugging device for the gradual-change section of the dewatering well according to the claim 2, characterized in that the outer wall of the lower cylindrical steel sleeve (22) is provided with a water-stopping wing ring (5).
4. The well plugging device for the gradual-change section of the dewatering well according to claim 2, characterized in that broken stones (6) are arranged in the steel sleeve (2).
5. The well plugging device for the gradual-change section of the dewatering well according to claim 2, characterized by further comprising a top protective concrete abutment (7), wherein the top protective concrete abutment (7) is arranged outside the water guide pipe (3).
6. The well plugging device with gradually changed section for dewatering well according to claim 2, characterized in that the outer wall of the upper part of the dewatering well casing (1) is provided with a joint filling mortar layer (8), and the lower cylindrical steel casing (22) is sleeved outside the joint filling mortar layer (8).
7. A well plugging device with gradually changed section for dewatering well according to claim 6, characterized in that a well backfill (9) is arranged in the dewatering well pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123135507.2U CN216446013U (en) | 2021-12-14 | 2021-12-14 | Dewatering well gradual change section well plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123135507.2U CN216446013U (en) | 2021-12-14 | 2021-12-14 | Dewatering well gradual change section well plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216446013U true CN216446013U (en) | 2022-05-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123135507.2U Active CN216446013U (en) | 2021-12-14 | 2021-12-14 | Dewatering well gradual change section well plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216446013U (en) |
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2021
- 2021-12-14 CN CN202123135507.2U patent/CN216446013U/en active Active
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