CN218894101U

CN218894101U - Precipitation well structure

Info

Publication number: CN218894101U
Application number: CN202223555996.1U
Authority: CN
Inventors: 孙洪鹏; 马学智; 张博强; 王文会; 于佳奇
Original assignee: Longjian Road and Bridge Co Ltd
Current assignee: Longjian Road and Bridge Co Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-04-21
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a precipitation well structure, which belongs to the field of building construction and comprises a terrace, wherein a precipitation well hole is formed in the terrace, a well drag is arranged at the bottom of the precipitation well hole, a sand setting pipe is fixedly arranged above the well drag, a filter material is filled between the sand setting pipe and the precipitation well hole, a well pipe is arranged above the sand setting pipe, clay is filled outside the well pipe above the filter material, filter screens are wrapped outside the sand setting pipe and the well pipe, a precipitation well cover is arranged at the top of the well pipe, a water pumping pipe is arranged in the middle of the precipitation well cover, a water pump is fixedly arranged at the tail end of the water pumping pipe and is arranged at the bottom of the precipitation well hole.

Description

Precipitation well structure

Technical Field

The utility model relates to the field of building construction, in particular to a dewatering well structure.

Background

With the development of cities, the use requirement of underground building space is larger and larger, so that the area of the basement and the depth of the basement are larger and larger, and the problem of drainage is inevitably encountered during construction.

The conventional dewatering method, namely the method of arranging dewatering wells around the foundation pit, is difficult to fully reduce the underground water in the foundation pit to the designed dewatering depth, a large number of steel bars, steel bar meshes, filter screens and the like are required for manufacturing the conventional dewatering wells, a large number of welding processes, mechanical connection processes, large-scale mechanical hoisting and the like are also required, backfilling is required for the dewatering wells after construction is completed, and most of materials are filled into the underground, so that a large number of resource waste conditions are easily caused.

Disclosure of Invention

Technical problem to be solved

Aiming at the problems existing in the prior art, the utility model aims to provide a dewatering well structure, which can be realized by arranging a well pipe in a dewatering well hole, then wrapping a filter screen outside the well pipe, and filling filter materials outside the well pipe, has simple material use, greatly reduces the use of materials such as reinforcing steel bars, reinforcing steel bar meshes, filter screens and the like, thereby saving a large amount of resources and reducing the condition of resource waste.

Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides a precipitation well structure, includes the terrace, the precipitation well hole has been seted up on the terrace, precipitation well hole bottom is provided with the well and drags, well drags top fixed mounting has the sand setting pipe, it has the filter material to fill between sand setting pipe and the precipitation well hole, sand setting pipe top is provided with the well pipe, the outside packing of well pipe above the filter material has clay, sand setting pipe and well pipe outside parcel have the filter screen, well pipe top is provided with the precipitation well lid, precipitation well lid middle part is provided with the drinking-water pipe, drinking-water pipe end fixed mounting has the water pump, the water pump end sets up in precipitation well hole bottom.

Further, the through hole is formed in the middle of the dewatering well lid, the water pumping pipe is inserted into the inner side of the through hole, and the water pumping pipe is matched with the through hole.

Further, HDPE impermeable membrane has been laid in terrace upper well pipe outside, HDPE impermeable membrane below welding has a plurality of firm nails, firm nail grafting is inboard at clay, the fastening plate has been laid on HDPE impermeable membrane upper portion, fastening plate and HDPE impermeable membrane edge welding, fixed mounting has sealed the pad on the fastening plate, sealed pad and precipitation well lid edge bottom tightly support each other.

Further, the filter material is made of stone dust, and the particle diameter of the filter material is 3-7 mm.

Further, the filter screen is composed of a 20-mesh iron gauze and a 60-mesh double-layer nylon gauze.

Further, the top of the well pipe is positioned on the outer side of the terrace, and the top of the well pipe is in sealing connection with the bottom of the dewatering well cover.

Further, the water pump is vertically arranged on the inner side of the dewatering well hole, and the bottom of the water pump and the well tractor are arranged in parallel.

Advantageous effects

Compared with the prior art, the utility model has the advantages that:

(1) According to the scheme, the well pipe is arranged in the dewatering well hole, the filter screen is wrapped outside the well pipe, the filter material is filled outside the well pipe, the use of materials is simple, the use of materials such as reinforcing steel bars, reinforcing steel bar meshes and the filter screen is greatly reduced, a large amount of resources are saved, and the resource waste is reduced.

(2) According to the scheme, the well pipe is arranged, and then is filled with the filter material, so that a large number of welding processes, mechanical connection processes and large-scale mechanical hoisting applications are reduced, and the construction of the well pipe is facilitated.

(3) This scheme is through the setting of HDPE prevention of seepage membrane and sealed structure such as filling up, and HDPE prevention of seepage membrane and sealed pad cooperation are used for fix the well pipe outside to play sealed effect, wholly play sealed effect to the precipitation well, avoid the condition emergence of seepage appears in the precipitation well when using.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a water pump mounting structure of the present utility model;

fig. 3 is a schematic view of a partial enlarged structure at a in fig. 2 according to the present utility model.

The reference numerals in the figures illustrate:

1. a terrace; 2. a water pumping pipe; 3. a filter material; 4. a sand setting pipe; 5. a filter screen; 6. clay; 7. a dewatering well cover; 8. a precipitation wellbore; 9. a well pipe; 10. a well tractor; 11. a water pump; 12. stabilizing nails; 13. HDPE impermeable films; 14. a fastening plate; 15. and a sealing gasket.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

Example 1:

referring to fig. 1-2, a precipitation well structure comprises a terrace 1, a precipitation well hole 8 is formed in the terrace 1, a well tractor 10 is arranged at the bottom of the precipitation well hole 8, a sand setting pipe 4 is fixedly arranged above the well tractor 10, a filter material 3 is filled between the sand setting pipe 4 and the precipitation well hole 8, a well pipe 9 is arranged above the sand setting pipe 4, clay 6 is filled outside the well pipe 9 above the filter material 3, a filter screen 5 is wrapped outside the sand setting pipe 4 and the well pipe 9, a precipitation well cover 7 is sealed at the top of the well pipe 9, a water pumping pipe 2 is arranged in the middle of the precipitation well cover 7, a water pump 11 is fixedly arranged at the tail end of the water pumping pipe 2, the tail end of the water pump 11 is arranged at the bottom of the precipitation well hole 8, the water pump 11 is placed in the precipitation well hole 8 for 14.5m, sediment enters the water pump 11 when water pumping, the precipitation well hole 8 is firstly laid according to design requirements, in the distribution process, deviation is not more than 300mm, after design is completed, the precipitation well hole 8 is formed by a reverse circulation drilling machine, and a formation slurry is automatically produced in the formation during the process.

Referring to fig. 2 and 3, an HDPE impermeable film 13 is laid on the outer side of a well pipe 9 on the terrace 1, a plurality of stabilizing nails 12 are welded below the HDPE impermeable film 13, the stabilizing nails 12 are inserted into the inner side of clay 6, a fastening plate 14 is laid on the upper portion of the HDPE impermeable film 13, the fastening plate 14 and the edge of the HDPE impermeable film 13 are welded, a sealing gasket 15 is fixedly installed on the fastening plate 14, the sealing gasket 15 and the bottom of the edge of a precipitation well cover 7 are tightly abutted against each other, the well pipe 9 is fixed on the outer side after the installation process is completed, the HDPE impermeable film 13 is installed on the outer side for fixing the outer side of the well pipe 9 and sealing the outer side, and then the fastening plate 14 and the sealing gasket 15 are used for sealing the well pipe 9 and the precipitation well cover 7, so that the whole well pipe 9 is sealed.

After the dewatering well hole 8 is formed, the well pipe 9 is installed, the well pipe 9 is suitable for the earth surface of 500 mm, the upper part is sealed by clay 6 without sand stone, the filter material 3 is filled immediately after the well pipe 9 is put down, the filter material 3 filled between the well pipe 9 and the well wall is required to be completed once, the filter material 3 is uniformly filled along the periphery of the dewatering well hole 8, the backfilling speed is mastered, the overhead in the middle part is avoided, and after well washing, if the subsidence of the filter material 3 is overlarge, the filling work is needed.

Then the water pump 11 is placed at the depth of 14.5m, the water pumping line is laid after the water pump 11 is placed, water pumping and draining are performed in time, when the water pumping line is laid, the site is carefully surveyed, the sewage pipeline is found, the water draining plastic pipes of all wells are reasonably and optimally arranged, and the water draining plastic pipes are discharged to the pipeline through reasonable pipelines. Draining turbid well water to the sewer line is strictly prohibited.

Referring to fig. 1, the filter material 3 is made of stone dust, and the particle diameter of the filter material 3 is 3-7 mm, so that the sewage is conveniently filtered, and impurities are reduced to be carried out in the water pump 11.

Referring to fig. 1, the filter screen 5 is a combination of a 20 mesh iron gauze and a 60 mesh double nylon gauze, and protects the outer sides of the sand settling pipe 4 and the well pipe 9.

When in use: firstly, arranging a dewatering well hole 8 according to design requirements, wherein the deviation is not more than 300mm in the arranging process, and after the design is finished, adopting a reverse circulation drilling machine to form the dewatering well hole 8, and in the arranging process, forming a stratum self-pulping wall protection.

After the dewatering well hole 8 is formed, the well pipe 9 is installed, the well pipe is suitable for the earth surface of 500 mm, the upper part is sealed by clay 6 without sand, the filter material 3 is filled immediately after the well pipe 9 is put down, the filter material 3 filled between the well pipe 9 and the well wall is required to be completed once, and the filter material 3 is uniformly filled along the periphery of the dewatering well hole 8.

After the well pipe 9 is installed, the HDPE impermeable membrane 13 is installed on the outer side of the well pipe 9 to fix the outer side of the well pipe 9 and play a role in sealing, and then the fastening plate 14 and the sealing gasket 15 are used to play a role in sealing between the well pipe 9 and the dewatering well cover 7 and play a role in sealing the whole well pipe 9.

When pumping, if the water quantity is large, the water pump 11 can be started one by one at intervals, and then the water pump is continuously pumped, the maintenance is enhanced for pumping equipment, common faults are removed, the static water level is observed before pumping, an initial value is established, the initial value is observed for 1 time every day in the initial stage of pumping, the water level is stable, the water level is observed every day according to the condition, the water level observation precision is +/-2 cm, and the water level observation record is made.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims

1. Precipitation well structure, including terrace (1), its characterized in that: the water-saving type water pump is characterized in that a precipitation well hole (8) is formed in the terrace (1), a well mop (10) is arranged at the bottom of the precipitation well hole (8), a sand setting pipe (4) is fixedly arranged above the well mop (10), a filter material (3) is filled between the sand setting pipe (4) and the precipitation well hole (8), a well pipe (9) is arranged above the sand setting pipe (4), clay (6) is filled outside the well pipe (9) above the filter material (3), a filter screen (5) is wrapped outside the sand setting pipe (4) and the well pipe (9), a precipitation well cover (7) is arranged at the top of the well pipe (9), a water pumping pipe (2) is arranged in the middle of the precipitation well cover (7), a water pump (11) is fixedly arranged at the tail end of the water pumping pipe (2), and the tail end of the water pump (11) is arranged at the bottom of the precipitation well hole (8).

2. A precipitation well structure according to claim 1, wherein: the dewatering well lid (7) middle part has seted up the through-hole, the drinking-water pipe (2) peg graft in the through-hole is inboard, drinking-water pipe (2) and through-hole looks adaptation.

3. A precipitation well structure according to claim 1, wherein: HDPE impervious film (13) has been laid in terrace (1) upper well pipe (9) outside, HDPE impervious film (13) below welding has a plurality of firm nails (12), firm nail (12) are pegged graft in clay (6) inboard, fastening plate (14) have been laid on HDPE impervious film (13) upper portion, fastening plate (14) and HDPE impervious film (13) edge welding, fixed mounting has sealed pad (15) on fastening plate (14), sealed pad (15) and precipitation well lid (7) edge bottom tightly support each other.

4. A precipitation well structure according to claim 1, wherein: the filter material (3) is made of stone scraps, and the particle diameter of the filter material (3) is 3-7 mm.

5. A precipitation well structure according to claim 1, wherein: the filter screen (5) is composed of a gauze and a double-layer nylon gauze, the gauze is 20 meshes, and the double-layer nylon gauze is 60 meshes.

6. A precipitation well structure according to claim 1, wherein: the top of the well pipe (9) is positioned at the outer side of the terrace (1), and the top of the well pipe (9) is connected with the bottom of the dewatering well cover (7) in a sealing way.

7. A precipitation well structure according to claim 1, wherein: the water pump (11) is vertically arranged at the inner side of the dewatering well hole (8), and the bottom of the water pump (11) and the well tractor (10) are arranged in parallel.