CN112081126A - Closed type dewatering environment-friendly energy-saving device for deep foundation pit and construction process thereof - Google Patents
Closed type dewatering environment-friendly energy-saving device for deep foundation pit and construction process thereof Download PDFInfo
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- CN112081126A CN112081126A CN202011093327.XA CN202011093327A CN112081126A CN 112081126 A CN112081126 A CN 112081126A CN 202011093327 A CN202011093327 A CN 202011093327A CN 112081126 A CN112081126 A CN 112081126A
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- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
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- 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
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/16—Restraining of underground water by damming or interrupting the passage of underground water by placing or applying sealing substances
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- 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
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/20—Restraining of underground water by damming or interrupting the passage of underground water by displacing the water, e.g. by compressed air
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/40—Miscellaneous comprising stabilising elements
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- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- General Engineering & Computer Science (AREA)
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a closed type dewatering environment-friendly energy-saving device for a deep foundation pit and a construction process thereof, and relates to the technical field of dewatering of the deep foundation pit. The closed type dewatering environment-friendly energy-saving device for the deep foundation pit comprises a dewatering well, a sliding plate is arranged in the dewatering well, a submersible pump is fixedly connected to the top of the sliding plate, a retaining ring pipe is sleeved on the inner wall of the dewatering well, a filtering and cleaning mechanism is fixedly connected to the bottom of the sliding plate, and filtering nets are fixedly connected to the left side and the right side of the top of the sliding plate. The invention solves the problems that the existing dewatering well is not environment-friendly and energy-saving during construction of a deep foundation pit, a blockage is easy to be pumped out during pumping water in the dewatering well to influence the construction environment, the filtering effect is poor, so that impurities are easy to permeate a filter screen and pumped out by a submersible pump after being blocked, and the submersible pump consumes more electric energy and is easy to damage a motor during blocking, and has the advantages of energy conservation and environment protection.
Description
Technical Field
The invention relates to the technical field of deep foundation pit dewatering, in particular to a closed type dewatering environment-friendly energy-saving device for a deep foundation pit and a construction process thereof.
Background
Along with the rapid development of novel urbanization construction, the building scale is rapidly enlarged, more and more underground facilities are continuously emerged, oversized and ultra-deep basements are more and more, more large-scale building sites are located at the coastal and coastal positions, soil layers with good underground permeability are often communicated with river water, geological data sometimes cannot completely and accurately reflect geological conditions, sand water emerges from a foundation pit along the excavation bottom of the foundation pit, even piping phenomenon can occur, and at the moment, rapid drainage measures need to be taken.
The precipitation well is environmental protection and energy saving inadequately during current deep basal pit construction, and the plug is taken out easily when the well during precipitation is taken water and is influenced construction environment, and the filter effect is not good leads to blockking up back impurity infiltration filter screen and is taken out by the immersible pump, and the immersible pump can consume more electric energy and damage the motor easily when blockking up simultaneously.
Disclosure of Invention
In order to solve the problems in the background art, the invention aims to provide a closed type precipitation environment-friendly energy-saving device for a deep foundation pit and a construction process thereof, which have the advantages of energy conservation and environmental protection, and solve the problems that a precipitation well is not environment-friendly and energy-saving enough during construction of the existing deep foundation pit, a blockage is easy to be drawn out when a well pumps water during precipitation to influence the construction environment, and the impurity permeation filter screen is drawn out by a submersible pump after blockage due to poor filtering effect, and the submersible pump consumes more electric energy and easily damages a motor during blockage.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a closed precipitation environmental protection economizer in deep basal pit and construction process thereof, includes the precipitation well, the inside of precipitation well is provided with the sliding plate, the top fixedly connected with immersible pump of sliding plate, the inner wall cover of precipitation well is equipped with the retaining ring pipe, the bottom fixedly connected with of sliding plate crosses the filter and manages the mechanism, the equal fixedly connected with filter screen in left side and the right side at sliding plate top, the equal fixedly connected with in four corners at sliding plate top stabilizes the subassembly.
Preferably, the filtering and cleaning mechanism comprises a fixed frame, the bottom of the fixed frame is fixedly connected with a submersible motor, the output end of the submersible motor is fixedly connected with a cleaning plate, the top of the cleaning plate is fixedly connected with a brush, and the top of the brush is in contact with the bottom of the filter screen.
Preferably, the stabilizing assembly comprises a fixing plate, the top of the fixing plate is fixedly connected with a limiting block, and an adjusting bolt is in threaded connection with the limiting block.
Preferably, the outer end of the adjusting bolt is fixedly connected with a shaft bracket, and a roller is movably arranged in the shaft bracket through a shaft pin.
Preferably, a reinforcing rib is fixedly connected to one side, away from the submersible pump, of the fixing plate, and the top of the reinforcing rib is fixedly connected with the bottom of the limiting block.
Preferably, a sealing rubber ring is fixedly connected to the surface of the sliding plate, and the surface of the sealing rubber ring is in contact with the inner wall of the retaining ring.
The closed construction process of the deep foundation pit is characterized by comprising the following steps of: accurately determining the position of each well according to the well position designed by the dewatering well bitmap and the actual situation on site;
secondly, forming a hole by using a rotary drill and protecting the wall by using slurry, wherein a protecting cylinder is arranged at the hole opening to prevent the hole opening from collapsing, and a sludge discharge ditch and a slurry pit are arranged on one side of the protecting cylinder;
and thirdly, cleaning the hole immediately after the hole is formed, and mounting the well pipe. After the well pipe is lowered, the filter pipe part of the well pipe is placed in a proper range of the aquifer, and gravel filter materials are filled between the well pipe and the hole wall;
fourthly, before the water pump is installed, cleaning the filter well by using a compressed air well washing method, and flushing dust residues until water discharged from the well pipe is changed from muddy to clear to reach normal water yield;
fifthly, after the water pump is installed, carrying out comprehensive and careful inspection on the water pump and a control system, carrying out water trial pumping after the water pump is qualified, and switching to normal operation after the requirements are met;
sixthly, observing underground water level change in the well and making detailed records;
seventhly, during precipitation, place the inside at the precipitation well with deep basal pit closed precipitation environmental protection economizer's sliding plate, then rotatory adjusting bolt moves to the outside, adjusting bolt drives pedestal and gyro wheel and moves to the outside, the gyro wheel contacts with the inner wall that keeps the ring canal, it is stable to make the sliding plate slide from top to bottom, the inside that muddy water in the precipitation well got into the immersible pump is prevented to the sealed rubber circle of rethread simultaneously, it is rotatory to start submersible motor drive cleaning plate, cleaning plate drives the brush and brushes away the bottom impurity of filter screen, prevent that impurity from piling up and blockking up the filter screen and influencing drainage quality, guarantee the operating stability of submersible pump simultaneously, impurity infiltration filter screen is taken out by the immersible pump after avoiding the filter screen to block up, the immersible pump can consume more electric energy and.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention solves the problems that the existing dewatering well is not environment-friendly and energy-saving during construction of a deep foundation pit, a blockage is easy to be pumped out during pumping water in the dewatering well to influence the construction environment, the filtering effect is poor, so that impurities are easy to permeate a filter screen and pumped out by a submersible pump after being blocked, and the submersible pump consumes more electric energy and is easy to damage a motor during blocking, and has the advantages of energy conservation and environment protection.
2. According to the invention, the fixing frame, the submersible motor, the cleaning plate and the brush are arranged, so that the submersible motor can be started to drive the cleaning plate to rotate, the cleaning plate drives the brush to brush away impurities at the bottom of the filter screen, the filter screen is prevented from being blocked by accumulated impurities to influence the drainage quality, and meanwhile, the running stability of the submersible pump is ensured.
3. According to the invention, the fixed plate, the limiting plate and the adjusting bolt are arranged, so that the adjusting bolt can be conveniently rotated to move outwards and the inner wall of the retaining ring pipe can be conveniently kept to slide and limit, and the sliding plate is prevented from inclining and shaking to influence drainage.
4. According to the invention, the shaft bracket and the roller are arranged, so that the roller can be conveniently installed through the shaft bracket, the roller is in sliding connection with the inner wall of the retaining ring pipe, the position of the sliding plate can be conveniently moved up and down, the stability of position adjustment of the sliding plate is ensured, the up-and-down installation and disassembly are convenient, and the shaking and damage are avoided.
5. According to the invention, the reinforcing ribs are arranged, so that the fixing strength of the fixing plate and the limiting block is ensured through the reinforcing ribs, and the bending fracture is prevented.
6. The sealing rubber ring is arranged, so that the muddy water in the dewatering well can not enter the submersible pump through the sealing rubber ring, and the running stability of the submersible pump is ensured.
7. The invention has better energy-saving and environment-friendly effects, reduces the phenomenon of water and soil loss at the precipitation well and the phenomenon of cavities caused by closure of underground water in the foundation pit, and has safe construction.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of FIG. 1 at A according to the present invention;
fig. 3 is a schematic perspective view of the limiting block of the present invention.
In the figure: 1. dewatering wells; 2. a sliding plate; 3. a sliding plate; 4. a retaining collar; 5. an over-filtration cleaning mechanism; 51. a fixed mount; 52. a submersible motor; 53. cleaning the plate; 54. a brush; 6. a filter screen; 7. a stabilizing assembly; 71. a fixing plate; 72. a limiting block; 73. adjusting the bolt; 8. a pedestal; 9. a roller; 10. reinforcing ribs; 11. and sealing the rubber ring.
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 to 3, the closed type precipitation environment-friendly energy-saving device for the deep foundation pit and the construction process thereof provided by the invention comprise a precipitation well 1, wherein a sliding plate 2 is arranged in the precipitation well 1, a submersible pump 3 is fixedly connected to the top of the sliding plate 2, a retaining ring 4 is sleeved on the inner wall of the precipitation well 1, a filtering and cleaning mechanism 5 is fixedly connected to the bottom of the sliding plate 2, filter screens 6 are fixedly connected to the left side and the right side of the top of the sliding plate 2, and stabilizing components 7 are fixedly connected to four corners of the top of the sliding plate 2.
Referring to fig. 1, the filtering mechanism 5 includes a fixing frame 51, a submersible motor 52 is fixedly connected to the bottom of the fixing frame 51, a cleaning plate 53 is fixedly connected to the output end of the submersible motor 52, a brush 54 is fixedly connected to the top of the cleaning plate 53, and the top of the brush 54 contacts with the bottom of the filter screen 6.
As a technical optimization scheme of the invention, the fixed frame 51, the submersible motor 52, the cleaning plate 53 and the brush 54 are arranged, so that the submersible motor 52 is started to drive the cleaning plate 53 to rotate, the cleaning plate 53 drives the brush 54 to brush away impurities at the bottom of the filter screen 6, the filter screen 6 is prevented from being blocked by accumulated impurities to influence the drainage quality, and the running stability of the submersible pump 3 is ensured.
Referring to fig. 2, the stabilizing assembly 7 includes a fixing plate 71, a stopper 72 is fixedly connected to the top of the fixing plate 71, and an adjusting bolt 73 is threadedly connected to the inside of the stopper 72.
As a technical optimization scheme of the invention, the fixing plate 71, the limiting plate 72 and the adjusting bolt 73 are arranged, so that the adjusting bolt 73 can be rotated to move outwards and can be limited by sliding on the inner wall of the retaining ring pipe 4, and the sliding plate 2 is prevented from tilting and shaking to influence drainage.
Referring to fig. 1, the outer end of the adjusting bolt 73 is fixedly connected with a shaft bracket 8, and a roller 9 is movably mounted inside the shaft bracket 8 through a shaft pin.
As a technical optimization scheme of the invention, the shaft bracket 8 and the roller 9 are arranged, so that the roller 9 can be conveniently installed through the shaft bracket 8, the roller 9 is in sliding connection with the inner wall of the retaining ring pipe 4, the sliding plate 2 can be conveniently moved up and down, the stability of position adjustment of the sliding plate 2 is ensured, the up-and-down installation and disassembly are convenient, and the shaking and damage are avoided.
Referring to fig. 1, a reinforcing rib 10 is fixedly connected to one side of the fixing plate 71 away from the submersible pump 3, and the top of the reinforcing rib 10 is fixedly connected to the bottom of the limiting block 72.
As a technical optimization scheme of the invention, the reinforcing ribs 10 are arranged, so that the fixing strength of the fixing plate 71 and the limiting block 72 is ensured through the reinforcing ribs 10, and the bending fracture is prevented.
Referring to fig. 1, a sealing rubber ring 11 is fixedly attached to the surface of the sliding plate 2, and the surface of the sealing rubber ring 11 is in contact with the inner wall of the holding collar 4.
As a technical optimization scheme of the invention, the sealing rubber ring 11 is arranged, so that the sealing rubber ring 11 is convenient to ensure that muddy water in the dewatering well 1 cannot enter the submersible pump 3, and the running stability of the submersible pump 3 is ensured.
The closed construction process of the deep foundation pit is characterized by comprising the following steps of: accurately determining the position of each well according to the well position designed by the dewatering well bitmap and the actual situation on site;
secondly, forming a hole by using a rotary drill and protecting the wall by using slurry, wherein a protecting cylinder is arranged at the hole opening to prevent the hole opening from collapsing, and a sludge discharge ditch and a slurry pit are arranged on one side of the protecting cylinder;
and thirdly, cleaning the hole immediately after the hole is formed, and mounting the well pipe. After the well pipe is lowered, the filter pipe part of the well pipe is placed in a proper range of the aquifer, and gravel filter materials are filled between the well pipe and the hole wall;
fourthly, before the water pump is installed, cleaning the filter well by using a compressed air well washing method, and flushing dust residues until water discharged from the well pipe is changed from muddy to clear to reach normal water yield;
fifthly, after the water pump is installed, carrying out comprehensive and careful inspection on the water pump and a control system, carrying out water trial pumping after the water pump is qualified, and switching to normal operation after the requirements are met;
sixthly, observing underground water level change in the well and making detailed records;
seventhly, during precipitation, place sliding plate 2 in the inside of precipitation well 1, then rotatory adjusting bolt 73 moves to the outside, adjusting bolt 73 drives pedestal 8 and gyro wheel 9 and moves to the outside, gyro wheel 9 and the inner wall contact who keeps ring pipe 4, it is stable to make sliding plate 2 slide from top to bottom, prevent the inside that muddy water in precipitation well 1 from getting into immersible pump 3 through sealing rubber circle 11 again simultaneously, it is rotatory to start submersible motor 52 and drive cleaning plate 53, cleaning plate 53 drives brush 54 and brushes away the bottom impurity of filter screen 6, prevent that impurity from piling up and blockking up filter screen 6 and influencing the drainage quality, guarantee immersible pump 3's operating stability simultaneously, impurity infiltration filter screen 6 is taken out by immersible pump 3 after avoiding filter screen 6 to block up, immersible pump 3 can consume more electric energy and damage the motor of water pump easily when avoiding blocking up simultaneously.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a closed precipitation environmental protection economizer of deep basal pit, includes precipitation well (1), its characterized in that: the improved dewatering well is characterized in that a sliding plate (2) is arranged inside the dewatering well (1), a submersible pump (3) is fixedly connected to the top of the sliding plate (2), a retaining ring pipe (4) is sleeved on the inner wall of the dewatering well (1), a filtering mechanism (5) is fixedly connected to the bottom of the sliding plate (2), a filter screen (6) is fixedly connected to the left side and the right side of the top of the sliding plate (2), and stabilizing components (7) are fixedly connected to the four corners of the top of the sliding plate (2).
2. The closed type environment-friendly and energy-saving precipitation device for the deep foundation pit as claimed in claim 1, wherein: the filter cleaning mechanism (5) comprises a fixing frame (51), a submersible motor (52) is fixedly connected to the bottom of the fixing frame (51), a cleaning plate (53) is fixedly connected to the output end of the submersible motor (52), a brush (54) is fixedly connected to the top of the cleaning plate (53), and the top of the brush (54) is in contact with the bottom of the filter screen (6).
3. The closed type environment-friendly and energy-saving precipitation device for the deep foundation pit as claimed in claim 1, wherein: firm subassembly (7) are including fixed plate (71), the top fixedly connected with stopper (72) of fixed plate (71), the inside threaded connection of stopper (72) has adjusting bolt (73).
4. The closed type environment-friendly and energy-saving precipitation device for the deep foundation pit as claimed in claim 3, wherein: the outer end of the adjusting bolt (73) is fixedly connected with a shaft bracket (8), and a roller (9) is movably arranged in the shaft bracket (8) through a shaft pin.
5. The closed type environment-friendly and energy-saving precipitation device for the deep foundation pit as claimed in claim 3, wherein: one side of the fixing plate (71) far away from the submersible pump (3) is fixedly connected with a reinforcing rib (10), and the top of the reinforcing rib (10) is fixedly connected with the bottom of the limiting block (72).
6. The closed type environment-friendly and energy-saving precipitation device for the deep foundation pit as claimed in claim 1, wherein: and a sealing rubber ring (11) is fixedly connected to the surface of the sliding plate (2), and the surface of the sealing rubber ring (11) is in contact with the inner wall of the retaining ring pipe (4).
7. The closed construction process of the deep foundation pit is characterized by comprising the following steps of: accurately determining the position of each well according to the well position designed by the dewatering well bitmap and the actual situation on site;
secondly, forming a hole by using a rotary drill and protecting the wall by using slurry, wherein a protecting cylinder is arranged at the hole opening to prevent the hole opening from collapsing, and a sludge discharge ditch and a slurry pit are arranged on one side of the protecting cylinder;
thirdly, cleaning the hole immediately after the hole is formed, installing a well pipe,
after the well pipe is lowered, the filter pipe part of the well pipe is placed in a proper range of the aquifer, and gravel filter materials are filled between the well pipe and the hole wall;
fourthly, before the water pump is installed, cleaning the filter well by using a compressed air well washing method, and flushing dust residues until water discharged from the well pipe is changed from muddy to clear to reach normal water yield;
fifthly, after the water pump is installed, carrying out comprehensive and careful inspection on the water pump and a control system, carrying out water trial pumping after the water pump is qualified, and switching to normal operation after the requirements are met;
sixthly, observing underground water level change in the well and making detailed records;
seventhly, during precipitation, place the inside at the precipitation well with deep basal pit closed precipitation environmental protection economizer's sliding plate, then rotatory adjusting bolt moves to the outside, adjusting bolt drives pedestal and gyro wheel and moves to the outside, the gyro wheel contacts with the inner wall that keeps the ring canal, it is stable to make the sliding plate slide from top to bottom, the inside that muddy water in the precipitation well got into the immersible pump is prevented to the sealed rubber circle of rethread simultaneously, it is rotatory to start submersible motor drive cleaning plate, cleaning plate drives the brush and brushes away the bottom impurity of filter screen, prevent that impurity from piling up and blockking up the filter screen and influencing drainage quality, guarantee the operating stability of submersible pump simultaneously, impurity infiltration filter screen is taken out by the immersible pump after avoiding the filter screen to block up, the immersible pump can consume more electric energy and.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011093327.XA CN112081126A (en) | 2020-10-14 | 2020-10-14 | Closed type dewatering environment-friendly energy-saving device for deep foundation pit and construction process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011093327.XA CN112081126A (en) | 2020-10-14 | 2020-10-14 | Closed type dewatering environment-friendly energy-saving device for deep foundation pit and construction process thereof |
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| CN112081126A true CN112081126A (en) | 2020-12-15 |
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| CN202011093327.XA Pending CN112081126A (en) | 2020-10-14 | 2020-10-14 | Closed type dewatering environment-friendly energy-saving device for deep foundation pit and construction process thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982008A (en) * | 2021-10-11 | 2022-01-28 | 中煤建工基础工程有限公司 | Foundation ditch excavation precipitation device |
| CN115125978A (en) * | 2022-07-09 | 2022-09-30 | 中建一局集团第五建筑有限公司 | Building foundation pit dewatering efficient discharge system and method thereof |
| CN115415294A (en) * | 2022-08-06 | 2022-12-02 | 临沂大学 | Deep groundwater dewatering device for soil and groundwater remediation |
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| DE10004575A1 (en) * | 2000-02-02 | 2001-08-09 | Schroeder Manuel | Building drying system for restoration has a perforated/slitted pipe under the foundation for surface water to flow in from all directions to be extracted by an immersion pump without clearing the outside walls |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113982008A (en) * | 2021-10-11 | 2022-01-28 | 中煤建工基础工程有限公司 | Foundation ditch excavation precipitation device |
| CN115125978A (en) * | 2022-07-09 | 2022-09-30 | 中建一局集团第五建筑有限公司 | Building foundation pit dewatering efficient discharge system and method thereof |
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| CN115415294A (en) * | 2022-08-06 | 2022-12-02 | 临沂大学 | Deep groundwater dewatering device for soil and groundwater remediation |
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Application publication date: 20201215 |
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| RJ01 | Rejection of invention patent application after publication |