CN113356249A - Dewatering well sealing device and dewatering well sealing method - Google Patents
Dewatering well sealing device and dewatering well sealing method Download PDFInfo
- Publication number
- CN113356249A CN113356249A CN202110540715.6A CN202110540715A CN113356249A CN 113356249 A CN113356249 A CN 113356249A CN 202110540715 A CN202110540715 A CN 202110540715A CN 113356249 A CN113356249 A CN 113356249A
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- 238000007789 sealing Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000004568 cement Substances 0.000 claims abstract description 14
- 239000002002 slurry Substances 0.000 claims abstract description 11
- 238000001556 precipitation Methods 0.000 claims description 28
- 239000011440 grout Substances 0.000 claims description 7
- 239000003566 sealing material Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 abstract description 9
- 238000010276 construction Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention is suitable for the field of engineering construction, and provides a dewatering well sealing device and a dewatering well sealing method, wherein the dewatering well sealing device comprises a fixing plate, and the dewatering well sealing device also comprises: the locking holes are provided with a plurality of groups and are all arranged at the well mouth of the dewatering well to be sealed; the connecting assembly penetrates through the fixing plate and is connected with the locking hole; the grouting assembly is arranged on one side, away from the dewatering well to be sealed, of the fixing plate and is used for pouring cement slurry into the sealed dewatering well; the fixed plate is preprocessed, the grouting assembly is welded with the fixed plate, the fixed plate is fixedly connected with the wellhead of the dewatering well to be sealed through the connecting assembly, and cement slurry is poured into the sealed dewatering well through the grouting assembly; the device simple structure, it is convenient to control, can accomplish complicated shut-in well operation through several simple steps, need not a large amount of welding jobs, has reduced constructor's work load to the success rate of disposable shut-in well has been improved greatly.
Description
Technical Field
The invention belongs to the field of engineering construction, and particularly relates to a dewatering well sealing device and a dewatering well sealing method.
Background
With the continuous improvement of the urbanization level of China, more and more ground buildings and more obvious urban diseases such as traffic jam, air pollution and the like, underground spaces, corresponding light rails, subways and various types of underground space engineering are actively utilized and developed more and more rapidly in various cities. Factors such as economy, cost, safety, construction period and the like are comprehensively considered, and the construction of underground space engineering is mainly open cut, so how to ensure the intrusion of underground water in the open cut process is a major difficulty in engineering construction;
at present, the combination of well point dewatering and a waterproof curtain is an effective method for solving the problem of underground water, the dewatering well is sealed in a backfilling concrete mode, and the dewatering well is sealed through multiple procedures of backfilling broken stones, pressing steel plates, injecting slurry, pumping water, pouring concrete, sealing and welding an opening plate and the like in the well;
although the well sealing method can seal the dewatering well after being implemented for many times, the one-time well sealing success rate is low, a large amount of welding operation is needed, the workload is large, the operation is complicated, and the time and the labor are consumed.
Disclosure of Invention
The embodiment of the invention aims to provide a dewatering well closing device and a dewatering well closing method, and aims to solve the problems in the background technology.
The embodiment of the invention is realized in such a way that the dewatering well closing device comprises a fixing plate, wherein the fixing plate is arranged at the wellhead of a dewatering well to be closed, and the dewatering well closing device also comprises:
the locking holes are provided with a plurality of groups and are all arranged at the well mouth of the dewatering well to be sealed;
the connecting assembly penetrates through the fixing plate and is connected with the locking hole, and the connecting assembly is used for connecting and fixing the fixing plate and a dewatering well to be sealed;
the grouting assembly is arranged on one side, far away from the dewatering well to be sealed, of the fixing plate and used for pouring cement slurry into the sealed dewatering well.
Another object of the embodiment of the present invention is to provide a method for sealing a dewatering well, which adopts the above dewatering well sealing device, and the method for sealing a dewatering well includes the following steps: through right the fixed plate carries out the preliminary treatment, sets up a plurality of groups locking hole at treating confined precipitation well wellhead department through the manual work, the rethread coupling assembling with the locking hole is connected, in order to incite somebody to action the fixed plate is connected fixedly with treating confined precipitation well wellhead, through grout subassembly pours into grout into in the confined precipitation well.
Compared with the prior art, the technical scheme provided by the embodiment of the invention has the following technical effects:
according to the dewatering well sealing device provided by the embodiment of the invention, the outer surface of the fixing plate is punched at the corresponding position, a plurality of groups of locking holes are arranged at the wellhead of a dewatering well to be sealed, the grouting assembly is welded with the fixing plate, the fixing plate is fixedly connected with the locking holes through the connecting assembly, so that the fixing plate is fixedly connected with the wellhead of the dewatering well to be sealed, and cement paste is poured into the sealed dewatering well through the grouting assembly; the device simple structure, it is convenient to control, can accomplish complicated shut-in well operation through several simple steps, directly apply the moment of torsion and can carry out the closing cap with the precipitation well, need not a large amount of welding jobs, reduced constructor's work load to the success rate of disposable shut-in well has been improved greatly, thereby has reduced constructor shut-in well operation's consuming time power.
Drawings
Fig. 1 is a perspective structural view of a dewatering well closing device according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of the connection structure of the fixing plate, the connecting assembly and the grouting assembly in FIG. 1;
FIG. 3 is a schematic structural view of the seal of FIG. 1;
fig. 4 is a schematic diagram illustrating a wellhead leveling step in a dewatering well closing method according to another embodiment of the present invention;
FIG. 5 is a schematic view of the interior structure of the dewatering well in FIG. 4;
FIG. 6 is a schematic diagram illustrating a well filling step of a dewatering well in a dewatering well sealing method according to another embodiment of the present invention;
fig. 7 is a schematic view of a connection structure between a dewatering well closing device and a dewatering well according to another embodiment of the present invention.
In the drawings: 1-fixing the plate; 2-sealing ring; 3-grouting pipe; 4-a connector; 5-an expansion member; 6-a first connection hole; 7-a hand-operated lever; 8-a valve; 9-a second connection hole; 10-water outlet pipe; 11-floor surface; 12-gravel; 13-filtering with a filter screen; 14-a water pump; 15-a filter tube; 16-a sand setting pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention. In order to make the technical solution of the present invention clearer, process steps and device structures well known in the art are omitted here. It should be understood that like reference numerals refer to like elements throughout. Further, various elements and regions in the drawings are schematically illustrated. Accordingly, the concepts of the present invention are not limited to the relative sizes or spacings shown in the figures.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1, a block diagram of a dewatering well closing apparatus according to an embodiment of the present invention includes:
the utility model provides a precipitation well closing means, includes fixed plate 1, fixed plate 1 sets up the well head department at treating the confined precipitation well, precipitation well closing means still includes:
the locking holes are provided with a plurality of groups and are all arranged at the well mouth of the dewatering well to be sealed;
the connecting assembly penetrates through the fixing plate 1 and is connected with the locking hole, and the connecting assembly is used for connecting and fixing the fixing plate 1 and a dewatering well to be closed;
the grouting assembly is arranged on one side, away from the dewatering well to be sealed, of the fixing plate 1 and is used for grouting cement slurry into the sealed dewatering well;
the water-saving well sealing device comprises a fixing plate 1, wherein the fixing plate 1 can be made of steel, iron, alloy and other materials, and steel is preferably adopted, so that the fixing plate 1 is not easy to rust under the scouring of well water in a dewatering well to be sealed, and the fixing plate 1 can play a long-time stable sealing effect after the dewatering well is sealed;
in the embodiment of the invention, the outer surface of the fixing plate 1 is punched at a corresponding position, a plurality of groups of locking holes are arranged on a wellhead of a precipitation well to be sealed, the grouting assembly is welded with the fixing plate 1, the fixing plate is fixedly connected with the locking holes through the connecting assembly, so that the fixing plate 1 is fixedly connected with the wellhead of the precipitation well to be sealed, and then cement slurry is poured into the sealed precipitation well through the grouting assembly; the device simple structure, it is convenient to control, can accomplish complicated shut-in well operation through several simple steps, directly apply the moment of torsion and can carry out the closing cap with the precipitation well, need not a large amount of welding jobs, reduced constructor's work load to the success rate of disposable shut-in well has been improved greatly, thereby has reduced constructor shut-in well operation's consuming time power.
As shown in fig. 2, as a preferred embodiment of the present invention, the connection assembly includes a plurality of sets of connection members 4, the connection members 4 are disposed on one side of the fixing plate 1 away from the dewatering well to be sealed, a plurality of sets of first connection holes 6 are disposed on the fixing plate 1, an expansion member 5 is disposed in each first connection hole 6, the expansion member 5 penetrates through the fixing plate 1 and is connected to a wellhead of the dewatering well to be sealed, and the connection members 4 are in threaded connection with the expansion members 5;
applying torque to the connecting piece 4 to rotate the connecting piece 4 in the expansion piece 5, so as to expand the diameter of the expansion piece 5, so that the expansion piece 5 is connected with the wellhead of the dewatering well to be closed, and the fixing plate 1 is connected and fixed with the dewatering well;
the connecting piece 4 is preferably a bolt, and can also be selected according to requirements, the diameter of the connecting piece 4 is 0.8-1.2cm, one end of the connecting piece 4 is provided with a taper which is convenient for driving the expansion piece 5 to expand, the connecting piece 4 is provided with a plurality of groups, and the connecting pieces 4 of the groups are in threaded connection and fit with the expansion piece 5;
the expansion piece 5 is preferably a nut, and can be selected according to requirements, the expansion piece 5 is in threaded connection with the connecting piece 4, the expansion piece 5 is expanded by the taper of one end of the connecting piece 4 through the rotation of the connecting piece 4 in the expansion piece 5, so that the expansion piece 5 can be firmly connected with the wellhead of the dewatering well to be closed and the fixing plate 1;
the diameter of the first connecting hole 6 is 1-1.4cm, the first connecting hole 6 is formed by processing the fixing plate 1 through an electric drill, a plurality of groups of the first connecting holes 6 are arranged, the distance between the first connecting holes 6 of the groups is preferably set to be 10cm, the distance between the position of the first connecting hole 6 and the edge of the fixing plate 1 is set to be 4-6cm, and the distance can be selected according to requirements.
As shown in fig. 1 and 3, as another preferred embodiment of the present invention, a sealing member is arranged on one side of the fixing plate 1 close to the dewatering well to be sealed, and the sealing member is connected with the wellhead of the dewatering well to be sealed;
preferably, the sealing element is made of flexible sealing material;
the sealing element is preferably a sealing ring 2 and can be selected according to requirements, the diameter of the sealing ring 2 is determined according to the size of a wellhead of the dewatering well to be sealed, the diameter of the sealing ring 2 is preferably the diameter of the wellhead of the dewatering well plus the outward expansion fixing size and can also be selected according to requirements, the sealing ring 2 is made of flexible sealing materials, rubber, silica gel and the like can be adopted, the sealing ring 2 is preferably made of rubber, and the sealing performance between the fixing plate 1 and the wellhead of the dewatering well to be sealed is improved.
As shown in fig. 1-2, as another preferred embodiment of the present invention, the grouting assembly includes at least one set of grouting pipes 3, the grouting pipes 3 are disposed on one side of the fixing plate 1 away from the dewatering well to be closed, a plurality of sets of second connection holes 9 are disposed on the fixing plate 1, the second connection holes 9 are correspondingly connected to the grouting pipes 3, a valve 8 is disposed at one end of the grouting pipes 3 close to the fixing plate 1, and a hand lever 7 is disposed at a driving end of the valve 8;
the valve 8 is opened by rotating the hand lever 7, cement paste is poured into the dewatering well to be sealed through one end, far away from the fixed plate 1, of the grouting pipe 3, and after the pouring is finished, the valve 8 is closed through the hand lever 7, so that the cement paste in the dewatering well is coagulated and fixed;
the grouting pipes 3 are at least provided with one group, two groups of grouting pipes 3 are preferably adopted here, one group is used for grouting cement slurry into the precipitation well, the other group is used for outputting the cement slurry in the precipitation well, and the diameter of each grouting pipe 3 is 7-8 cm;
the second connecting holes 9 are formed by cutting the fixing plate 1 by using a cutting saw, the second connecting holes 9 are used for welding and fixing the grouting pipes 3 and the fixing plate 1, and the number of the second connecting holes 9 is determined according to the number of the grouting pipes 3;
As shown in fig. 7, as another preferred embodiment of the present invention, the side length of the fixing plate 1 is 15-25cm more than the diameter of the wellhead of the dewatering well to be closed, and the thickness of the fixing plate 1 is 0.8-1.5 cm;
the fixed plate 1 can be circular, rectangular and the like, and is preferably rectangular, the side length of the fixed plate 1 is 15-25cm larger than the diameter of the wellhead of the dewatering well, and is determined by the diameter of the sealing ring 2, the safety distance between the connecting piece 4 and the sealing ring 2 and the safety distance between the first connecting hole 6 and the edge position of the fixed plate 1, so that the sealing ring 2 cannot be damaged by the connecting piece 4 when the connecting component is connected with the wellhead of the dewatering well to be sealed.
As shown in fig. 1-7, an embodiment of the present invention further provides a method for sealing a dewatering well, which uses the above dewatering well sealing device, and the method for sealing a dewatering well further includes the following steps: the fixing plate 1 is pretreated, a plurality of groups of locking holes are manually arranged at the wellhead of the dewatering well to be sealed, the fixing plate 1 is connected and fixed with the wellhead of the dewatering well to be sealed through the connecting assembly and the locking holes, and cement paste is poured into the sealed dewatering well through the grouting assembly;
a pretreatment comprising the steps of: cutting the fixing plate 1 according to the diameter of a wellhead of a dewatering well to be sealed, punching the fixing plate 1 according to the diameter of the sealing ring 2, the safe distance from the connecting assembly to the edge of the fixing plate 1 and the diameter and the position of the grouting pipe 3, and welding the grouting pipe 3 and the fixing plate 1.
As shown in fig. 4-7, as a preferred embodiment of the present invention, in the method for closing a dewatering well, a step of leveling the wellhead of the dewatering well and a step of filling the dewatering well are further included;
preferably, the wellhead of the dewatering well is provided with a bottom plate surface 11, and one side of the bottom plate surface 11, which is close to the bottom of the dewatering well, is sequentially provided with a filter pipe 15 and a sand setting pipe; a water suction pump 14 is further arranged in the dewatering well, a filter screen 13 is arranged on the outer side of the water suction pump 14, the water suction pump 14 is packaged by the filter screen 13, a water outlet pipe 10 is arranged at the output end of the water suction pump 14, and the water outlet pipe 10 penetrates through the dewatering well to the side, away from the water suction pump 14, of the bottom plate surface 11;
the well mouth leveling method of the dewatering well comprises the following steps: manually polishing and flattening the concrete surface within 30cm of the periphery of the wellhead by using an electric grinding wheel, controlling the height difference of the polished concrete surface to be 1mm, drilling holes in the position, corresponding to the connecting component, on the concrete plate surface by using an electric drill, wherein the drilling depth is 2cm shorter than the length of the connecting component 4;
the well filling steps of the dewatering well are as follows: taking the water suction pump 14 and the water outlet pipe 10 stored in the precipitation well out of the precipitation well, filling gravel 12 with the thickness of 5-25mm into the precipitation well from the bottom plate surface 11, and vibrating the gravel 12 for hardening by using a steel stick without filling 50cm in the filling process until the gravel is filled to the same height as the bottom plate surface 11;
in the embodiment of the invention, the method for closing the dewatering well comprises the following steps:
step 1: the fixing plate 1 is punched and cut by an electric drill and a cutting saw to form a plurality of groups of first connecting holes 6 and second connecting holes 9;
step 2: welding the grouting assembly with the fixing plate 1;
and step 3: manually polishing and flattening the concrete surface within 30cm around the wellhead by using an electric grinding wheel, and controlling the height difference of the polished concrete surface to be 1 mm;
and 4, step 4: drilling holes in the concrete surface at the positions corresponding to the connecting components by an electric drill;
and 5: taking out the water suction pump 14 and the water outlet pipe 10 in the precipitation well;
step 6: filling the gravel 12 into a precipitation well to be sealed, and vibrating the gravel until the height of the gravel 12 is the same as that of the bottom plate surface 11;
and 7: placing the sealing ring 2 on the wellhead of the dewatering well to be sealed flat and in contact with the wellhead;
and 8: the fixing plate 1 is fixedly connected with a wellhead of a dewatering well to be sealed through the connecting assembly;
and step 9: and grouting cement slurry into the dewatering well to be sealed through the grouting assembly.
The embodiment of the invention provides a dewatering well sealing device, and a dewatering well sealing method is provided based on the dewatering well sealing device, the outer surface of a fixing plate 1 is punched at a corresponding position, a plurality of groups of locking holes are arranged at the wellhead of a dewatering well to be sealed, a grouting assembly is welded with the fixing plate 1, the fixing plate and the locking holes are connected and fixed through a connecting assembly, so that the fixing plate 1 and the wellhead of the dewatering well to be sealed are connected and fixed, and cement slurry is poured into the sealed dewatering well through the grouting assembly; the device simple structure, it is convenient to control, can accomplish complicated shut-in well operation through several simple steps, directly apply the moment of torsion and can carry out the closing cap with the precipitation well, need not a large amount of welding jobs, reduced constructor's work load to the success rate of disposable shut-in well has been improved greatly, thereby has reduced constructor shut-in well operation's consuming time power.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.
Claims (9)
1. The utility model provides a precipitation well closing means, includes the fixed plate, the fixed plate sets up the wellhead department at treating the confined precipitation well, its characterized in that, precipitation well closing means still includes:
the locking holes are provided with a plurality of groups and are all arranged at the well mouth of the dewatering well to be sealed;
the connecting assembly penetrates through the fixing plate and is connected with the locking hole, and the connecting assembly is used for connecting and fixing the fixing plate and a dewatering well to be sealed;
the grouting assembly is arranged on one side, far away from the dewatering well to be sealed, of the fixing plate and used for pouring cement slurry into the sealed dewatering well.
2. The dewatering well closing device according to claim 1, wherein the connection assembly comprises a plurality of sets of connection members, the connection members are arranged on a side of the fixing plate far away from the dewatering well to be closed, a plurality of sets of first connection holes are formed in the fixing plate, expansion members are arranged in the first connection holes, the expansion members penetrate through the fixing plate and are connected with the locking holes, and the connection members are connected with the expansion members.
3. The dewatering well closing device according to claim 1, wherein a sealing member is arranged on one side of the fixing plate close to the dewatering well to be closed, and the sealing member is connected with a wellhead of the dewatering well to be sealed.
4. The dewatering well closing device according to claim 3, wherein the sealing member is made of a flexible sealing material.
5. The dewatering well closing device according to claim 1, wherein the grouting assembly comprises a grouting member, the grouting member is arranged on one side of the fixing plate far away from the dewatering well to be closed, the grouting member is connected with the fixing plate, and one end of the grouting pipe close to the fixing plate is provided with a control valve.
6. The dewatering well closing device according to claim 1, wherein the side length of the fixing plate is 15-25cm more than the diameter of the well mouth of the dewatering well to be closed, and the thickness of the fixing plate is 0.8-1.5 cm.
7. A method for sealing a dewatering well, characterized in that the dewatering well sealing device as claimed in any one of claims 1-6 is used, and the method for sealing the dewatering well comprises the following steps: through right the fixed plate carries out the preliminary treatment, sets up a plurality of groups locking hole at treating confined precipitation well wellhead department through the manual work, the rethread coupling assembling with the locking hole is connected, in order to incite somebody to action the fixed plate is connected fixedly with treating confined precipitation well wellhead, through grout subassembly pours into grout into in the confined precipitation well.
8. The method for closing a dewatering well according to claim 7, further comprising the step of leveling the wellhead of the dewatering well.
9. The method for closing a dewatering well as claimed in claim 7, further comprising the step of filling the dewatering well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110540715.6A CN113356249A (en) | 2021-05-18 | 2021-05-18 | Dewatering well sealing device and dewatering well sealing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110540715.6A CN113356249A (en) | 2021-05-18 | 2021-05-18 | Dewatering well sealing device and dewatering well sealing method |
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| CN113356249A true CN113356249A (en) | 2021-09-07 |
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| CN202110540715.6A Pending CN113356249A (en) | 2021-05-18 | 2021-05-18 | Dewatering well sealing device and dewatering well sealing method |
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2021
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| CN107313437A (en) * | 2016-04-27 | 2017-11-03 | 上海十三冶建设有限公司 | The shut-in well construction method of foundation ditch pressure-bearing dewatering well |
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Application publication date: 20210907 |