CN111501804A - Precipitation structure for preventing earthwork construction from being submerged and construction method - Google Patents
Precipitation structure for preventing earthwork construction from being submerged and construction method Download PDFInfo
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- CN111501804A CN111501804A CN202010281459.9A CN202010281459A CN111501804A CN 111501804 A CN111501804 A CN 111501804A CN 202010281459 A CN202010281459 A CN 202010281459A CN 111501804 A CN111501804 A CN 111501804A
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- pipe
- protection
- precipitation
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- protection steel
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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
Abstract
The invention relates to a precipitation structure for preventing earthwork construction from being submerged and a construction method. The water pumping device is arranged in the precipitation well pipe; pumping device includes the immersible pump, the drinking-water pipe, the protection tube is placed by overlapping from top to bottom a plurality of sections branch protection tubes, a plurality of sections divide mutual independence between the protection tube, the bottom and the immersible pump of drinking-water pipe are connected, the precipitation well pipe is stretched out at the top, two protection steel sheets are predetermine to the inside of precipitation well pipe, be respectively last protection steel sheet and lower protection steel sheet, the middle part of two protection steel sheets sets up the through-hole, the drinking-water pipe passes the through-hole, two protection steel sheet circumference respectively with the inside wall fixed connection of precipitation pipe, the coaxial setting of protection tube is in the outside of drinking-water. The soil body is prevented from entering to influence normal precipitation.
Description
Technical Field
The invention belongs to the technical field of engineering construction materials, and particularly relates to a precipitation structure for preventing earthwork construction from being submerged and a construction method.
Background
The information in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.
With the acceleration of urbanization process, exploring, developing and utilizing urban underground space becomes an important measure for fully utilizing land resources and guaranteeing the sustainable development of cities, however, the development and utilization of urban underground space in a water-rich area often requires precipitation to smoothly complete the whole construction, precipitation work is required before deep foundation pit excavation, earth work inevitably damages a precipitation well in the process of foundation pit excavation, the precipitation well is submerged, the precipitation work cannot be normally completed, and how to prevent the precipitation well from being submerged by earth is very important.
The conventional method for protecting the dewatering well covers the cover plate at the well mouth during the earth excavation, however, the control is difficult during the foundation pit excavation, the dewatering well cannot be well protected, the well pipe can be dug carelessly during the earth excavation, so that a large amount of soil enters the well, the well is buried, the dewatering cannot be completed, if a local well is buried, the local water level rises, the dewatering cost is additionally increased, if too many buried wells exist, the whole water level is difficult to control, the construction period is influenced, the cost is increased, and therefore, the method for preventing the soil from entering the dewatering well is very important.
Disclosure of Invention
In view of the above problems in the prior art, the present invention is to provide a precipitation structure and a construction method for preventing earth construction from flooding.
In order to solve the technical problems, the technical scheme of the invention is as follows:
according to the first aspect, the dewatering structure for preventing earthwork construction from being submerged comprises a dewatering well pipe and a water pumping device, wherein the dewatering well pipe consists of a water filtering pipe at the bottom and a plurality of sections of dewatering pipes, the sections of dewatering pipes are mutually independent, a filter material is filled between each dewatering pipe and a well wall, the well pipe can be prevented from shaking left and right, the sections of dewatering pipes are arranged in an up-and-down overlapping mode, and the water pumping device is arranged inside the dewatering well pipe;
pumping device includes the immersible pump, the drinking-water pipe, the protection tube is placed by overlapping from top to bottom a plurality of sections branch protection tubes, a plurality of sections divide mutual independence between the protection tube, the bottom and the immersible pump of drinking-water pipe are connected, the precipitation well pipe is stretched out at the top, two protection steel sheets are predetermine to the inside of precipitation well pipe, be respectively last protection steel sheet and lower protection steel sheet, the middle part of two protection steel sheets sets up the through-hole, the drinking-water pipe passes the through-hole, two protection steel sheet circumference respectively with the inside wall fixed connection of precipitation pipe, the coaxial setting of protection tube is in the outside of drinking-water.
According to the precipitation structure, the precipitation well pipe is a well wall of a precipitation well, when the pipe wall of the precipitation well pipe is broken, a large amount of soil can enter the well, the water pumping pipe is arranged, the purpose is that when the soil body impacts the precipitation pipe, the precipitation pipe is broken and topples over, and due to the protection effect of the protection pipe, the soil body falls above the protection steel plate, and the soil body is prevented from entering the lower part of the lower protection steel plate.
If the protective pipe breaks, the fragments of the protective pipe block the gap between the water pumping pipe and the protective steel plate, and the soil body is prevented from falling to the lower side of the protective steel plate through the gap between the water pumping pipe and the protective steel plate.
As some embodiments of the invention, the threading steel pipe and the protective steel plate are integrally arranged, the threading steel pipe is positioned at the through hole position of the protective steel plate, the threading steel pipe and the pumping pipe are coaxially arranged, and the threading steel pipe is positioned on the inner side of the protective pipe.
As some embodiments of the present invention, the strainer is positioned below the base, the lower protective steel plate is positioned above the base, the upper protective steel plate is positioned below the ground, and the upper end of the protective pipe is positioned between the upper protective steel plate and the ground.
Preferably, the distance between the upper end of the protection tube and the ground is 0.3-0.5m, and the distance between the substrate and the lower protection steel plate is 0.3 m.
As some embodiments of the invention, the pumping pipes extend out of the precipitation well pipe, and are arranged in L type, and the pumping pipes are designed in L type mainly for convenience in pumping water to other areas.
As some embodiments of the invention, the elevation of the precipitation well pipe above the ground is 0.4-0.6 m.
As some embodiments of the invention, the diameter of the pumping pipe is determined according to the field water quantity and the construction scheme, the outer diameter of the threading steel pipe is 88-89mm, the inner diameter of the protection pipe is 90-100mm, the length of each section of the downcomer pipe is 0.8-1.2m, and the length of each section of the protection pipe is 0.8-1.2 m.
As some embodiments of the present invention, the distance between the substrate and the bottom of the filter tube is 4-6 m.
In a second aspect, a construction method for preventing an earthwork construction from submerging a precipitation structure comprises the following specific steps:
prefabricating a strainer, putting a submersible pump at the bottom of the strainer, connecting the submersible pump with a water pumping pipe, and putting the strainer carrying the submersible pump and the water pumping pipe at a preset position below a substrate;
and meanwhile, a plurality of sections of dewatering pipes, a plurality of sections of sub-protection pipes and the water pumping pipe are sleeved and placed in the dewatering well, and the total length of the plurality of sections of protection pipes between the upper protection steel plate and the lower protection steel plate is the distance between the upper protection steel plate and the lower protection steel plate.
According to some embodiments of the invention, the downcomer and the protective steel plate are integrally prefabricated and formed, the threading steel pipe and the protective steel plate are integrally prefabricated and formed, and the pumping pipe penetrates through the threading steel pipe when sleeved.
In some embodiments of the present invention, the precipitation well pipe is made of a sand-free pipe, the protection pipe is made of a steel pipe, and the pumping pipe is made of a steel pipe.
The invention has the beneficial effects that:
the dewatering pipe can effectively protect the interior of the dewatering well, and avoid the problem that soil bodies enter the dewatering well and are buried. The precipitation structure can protect the side wall of the precipitation well from being damaged when the bottom of the precipitation well is excavated, the well pipe is excavated and broken, and if soil enters the precipitation well, the soil is blocked by the soil blocking pipe, so that the water in the precipitation well is not influenced to be pumped out, the normal precipitation can be realized, and the construction can be normally carried out. The service life of the dewatering well is prolonged.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the invention and not to limit the invention.
FIG. 1 is a block diagram of a precipitation structure of the present invention;
the device comprises a precipitation well pipe 1, a precipitation well pipe 2, a water filter pipe 3, a protective steel plate 4, a submersible pump 5, a water pumping pipe 6, a protective pipe 7, a threading steel pipe 8, a substrate 9 and the ground.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise. The invention will be further illustrated by the following examples
Example 1
The invention discloses a precipitation structure for preventing earthwork construction from being submerged, which comprises a precipitation well pipe 1 and a water pumping device, wherein the precipitation well pipe 1 consists of a water filter pipe 2 at the bottom and a plurality of sections of precipitation pipes, the sections of the precipitation pipes are mutually independent, the sections of the precipitation pipes are arranged in an up-and-down overlapping mode, and the water pumping device is arranged inside the precipitation well pipe 1;
pumping device includes immersible pump 4, drinking-water pipe 5, protection tube 6 is placed by overlapping from top to bottom a plurality of sections branch protection tubes, a plurality of sections divide mutual independence between the protection tube, drinking-water pipe 5's bottom is connected with immersible pump 4, precipitation well casing 1 is stretched out at the top, two protection steel sheet 3 are predetermine to precipitation well casing 1's inside, be respectively protection steel sheet and lower protection steel sheet, the middle part of two protection steel sheet sets up the through-hole, drinking-water pipe 5 passes the through-hole, two protection steel sheet circumference respectively with the inside wall fixed connection of precipitation pipe, the coaxial setting in the outside of drinking-water pipe 5 of protection tube 6, the bottom of protection tube 6 falls on.
Compared with the existing dewatering structure, the dewatering structure provided by the invention has the advantages that the protection pipe 6, the threading steel pipe 7 and the protection steel plates 3 are arranged in the dewatering well, the upper protection steel plate and the lower protection steel plate play a role in preventing soil entering the dewatering well from falling below the lower protection steel plate, because the lower protection steel plate is a place for water to be reserved, water enters the inside of the strainer 2 through the strainer 2 and then is pumped out through the submersible pump 4 and the water pumping pipe 5, and the whole dewatering well is provided with the two protection steel plates 3, so that the soil can be prevented from falling downwards. The existing precipitation well pipe is easy to break, and because the construction area is located in the area where the precipitation well pipe is located, namely between the ground and the base, the protection pipe arranged above the lower protection steel plate of the invention has the advantages that when the precipitation well pipe breaks, soil body falls on the protection steel plate 3 and is blocked by the protection pipe 6 and cannot enter the protection pipe 6, and because gaps exist between the water pumping pipe 5 and the threading steel pipe 7, if the soil body enters the protection pipe 6, the soil body falls below the lower protection steel plate through the gaps, so that the water pumping is influenced. In the invention, the soil body is prevented from entering the protection pipe 6, and if the protection pipe 6 is damaged by the soil body, part of crushed slag or fragments of the protection pipe 6 after being crushed can fall down to a gap between the water pumping pipe 5 and the threading steel pipe 7 to block the soil body, and the crushed slag or fragments of the protection pipe 6 are covered by the gravity of the soil body to seal the gap, thereby playing a role of protection.
The strainer 2 is located the below of basement 8, and lower protection steel sheet is located the top of basement 8, goes up the protection steel sheet and is located the below on ground 9, and the upper end of protection tube 6 is located between protection steel sheet and the ground 9.
The pumping pipe 5 extends out of the precipitation well pipe 1, and the pumping pipe 5 is arranged in L type.
In the invention, cold drawing wires are added in the water filtering pipe to improve the strength of the well pipe, and the lower protective steel plate is arranged above the substrate 8 to improve the strength of the precipitation well pipe 1 between the substrate 8 and the ground 9; the invention divides the space between the base and the ground into three sections, the lower section is exposed to be short and is not easy to break, the middle section and the upper end are easy to break, and through the matching of the upper protective steel plate and the lower protective steel plate, when the middle section has a break opening, the amount of soil entering the dewatering well is reduced through the supporting function of the upper protective steel plate and the lower protective steel plate, and the strength of the dewatering well is improved.
The protective steel plate 3 and the downcomer are reinforced and fixed through cold drawing.
Example 2
A construction method for preventing an earthwork construction from submerging a precipitation structure comprises the following specific steps:
prefabricating a strainer 2, placing the strainer 2 at a preset position below a substrate 8, respectively connecting a submersible pump 4 with a water pumping pipe 5 and a cable, and placing the submersible pump 4 at the bottom of the strainer 2;
and meanwhile, a plurality of sections of dewatering pipes, a plurality of sections of sub-protection pipes and the water pumping pipe are sleeved and placed in the dewatering well, and the total length of the plurality of sections of protection pipes between the upper protection steel plate and the lower protection steel plate is the distance between the upper protection steel plate and the lower protection steel plate.
The thickness of the protective steel plate is 3-5 mm. The protective steel plate is directly connected with the well pipe into a whole when the well pipe is prefabricated, and 6 4mm cold-drawn wires are symmetrically arranged inside the well pipe and are used for being fixed with the protective steel plate 3.
The construction method of the invention is different from the existing construction method of the dewatering structure in that: according to the invention, the protection steel plate 3 and the protection pipe 6 are arranged, the water pumping pipe 5 penetrates through the protection steel plate 3, so that the downcomer is sleeved and connected from the water pumping pipe, and because the protection pipe 6 cannot penetrate through the protection steel plate 3, each section of protection pipe 6 can be sleeved and connected from the water pumping pipe 5 only after the water pumping pipe 5 is placed, and the total length of a plurality of sections of protection pipes between the upper protection steel plate and the lower protection steel plate is equal to the distance between the upper protection steel plate and the lower protection steel plate.
In one embodiment, the outer diameter of the threading steel pipe is 88.9mm, the inner diameter of the protection pipe is 95mm, the length of each downcomer is 0.9m, and the length of each protection pipe is 0.9 m.
The existing construction method of the dewatering structure is to put the whole dewatering well pipe well and then put the submersible pump well. In the application, each segment is in socket connection in a socket mode. This protects the submersible pump area.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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 (10)
1. The utility model provides a prevent that earthwork construction from flooding precipitation structure that buries which characterized in that: the water-pumping device comprises a precipitation well pipe and a water pumping device, wherein the precipitation well pipe consists of a water filter pipe at the bottom and a plurality of sections of precipitation pipes, the plurality of sections of precipitation pipes are mutually independent, a filter material is filled between the precipitation pipes and a well wall, the well pipe can be prevented from shaking left and right, the plurality of sections of precipitation pipes are arranged in an up-and-down overlapping mode, and the water pumping device is arranged inside the precipitation well pipe;
pumping device includes the immersible pump, the drinking-water pipe, the protection tube is placed by overlapping from top to bottom a plurality of sections branch protection tubes, a plurality of sections divide mutual independence between the protection tube, the bottom and the immersible pump of drinking-water pipe are connected, the precipitation well pipe is stretched out at the top, two protection steel sheets are predetermine to the inside of precipitation well pipe, be respectively last protection steel sheet and lower protection steel sheet, the middle part of two protection steel sheets sets up the through-hole, the drinking-water pipe passes the through-hole, two protection steel sheet circumference respectively with the inside wall fixed connection of precipitation pipe, the coaxial setting of protection tube is in the outside of drinking-water.
2. The structure of claim 1 for preventing precipitation from flooding in earthwork construction, wherein: threading steel pipe and protection steel sheet an organic whole set up, and the threading steel pipe is located the through-hole position of protection steel sheet, and threading steel pipe and drinking-water pipe coaxial setting, the threading steel pipe is located the inboard of protection tube.
3. The structure of claim 1 for preventing precipitation from flooding in earthwork construction, wherein: the strainer is located the below of basement, and lower protection steel sheet is located the top of basement, goes up the below that protection steel sheet is located ground, and the upper end of protection tube is located between protection steel sheet and the ground.
4. The structure of claim 3 for preventing precipitation from flooding in earthwork construction, wherein: the distance between the upper end of the protection tube and the ground is 0.3-0.5m, and the distance between the substrate and the lower protection steel plate is 0.3 m.
5. The structure of claim 3 for preventing precipitation from flooding in earthwork construction, wherein: the elevation of the precipitation well pipe above the ground is 0.4-0.6 m.
6. The structure of claim 1, wherein the pumping pipes extend out of the casing pipe and are L-shaped.
7. The structure of claim 1 for preventing precipitation from flooding in earthwork construction, wherein: the outer diameter of the threading steel pipe is 88-89mm, the inner diameter of the protection pipe is 90-100mm, the length of each section of downcomer pipe is 0.8-1.2m, and the length of each section of protection pipe is 0.8-1.2 m.
8. The structure of claim 1 for preventing precipitation from flooding in earthwork construction, wherein: the distance between the substrate and the bottom of the filter pipe is 4-6 m.
9. The construction method of the structure for preventing earth from being submerged in water for earthwork construction as claimed in any one of claims 1 to 6, wherein: the method comprises the following specific steps:
prefabricating a strainer, putting a submersible pump at the bottom of the strainer, connecting the submersible pump with a water pumping pipe, and putting the strainer carrying the submersible pump and the water pumping pipe at a preset position below a substrate;
and meanwhile, a plurality of sections of dewatering pipes, a plurality of sections of sub-protection pipes and the water pumping pipe are sleeved and placed in the dewatering well, and the total length of the plurality of sections of protection pipes between the upper protection steel plate and the lower protection steel plate is the distance between the upper protection steel plate and the lower protection steel plate.
10. The construction method of the structure for preventing earth from being submerged in water according to claim 9, wherein: the downcomer and the integrative prefabricated shaping of protection steel sheet, threading steel pipe and the integrative prefabricated shaping of protection steel sheet, when cup jointing the drinking-water pipe, the drinking-water pipe passes the threading steel pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010281459.9A CN111501804B (en) | 2020-04-10 | 2020-04-10 | Precipitation structure for preventing earthwork construction from being submerged and construction method |
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| CN202010281459.9A CN111501804B (en) | 2020-04-10 | 2020-04-10 | Precipitation structure for preventing earthwork construction from being submerged and construction method |
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| CN111501804A true CN111501804A (en) | 2020-08-07 |
| CN111501804B CN111501804B (en) | 2022-02-11 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007100401A (en) * | 2005-10-05 | 2007-04-19 | Izumi Pump Seisakusho:Kk | Undergroundwater level lowering apparatus |
| CN203878598U (en) * | 2014-04-25 | 2014-10-15 | 中国建筑第八工程局有限公司 | Dewatering well cover structure |
| CN205152968U (en) * | 2015-11-19 | 2016-04-13 | 中国建筑第七工程局有限公司 | Precipitation tubular well structure |
| CN205502044U (en) * | 2016-03-22 | 2016-08-24 | 上海岩土工程勘察设计研究院有限公司 | Be applied to precipitation structure in grittiness water -bearing stratum under building |
| CN110629777A (en) * | 2019-09-27 | 2019-12-31 | 宁德沙埕湾跨海高速公路有限责任公司 | Well point dewatering device and system and construction method thereof |
-
2020
- 2020-04-10 CN CN202010281459.9A patent/CN111501804B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007100401A (en) * | 2005-10-05 | 2007-04-19 | Izumi Pump Seisakusho:Kk | Undergroundwater level lowering apparatus |
| CN203878598U (en) * | 2014-04-25 | 2014-10-15 | 中国建筑第八工程局有限公司 | Dewatering well cover structure |
| CN205152968U (en) * | 2015-11-19 | 2016-04-13 | 中国建筑第七工程局有限公司 | Precipitation tubular well structure |
| CN205502044U (en) * | 2016-03-22 | 2016-08-24 | 上海岩土工程勘察设计研究院有限公司 | Be applied to precipitation structure in grittiness water -bearing stratum under building |
| CN110629777A (en) * | 2019-09-27 | 2019-12-31 | 宁德沙埕湾跨海高速公路有限责任公司 | Well point dewatering device and system and construction method thereof |
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| CN111501804B (en) | 2022-02-11 |
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