CN211172038U

CN211172038U - Municipal construction's foundation ditch drainage structures

Info

Publication number: CN211172038U
Application number: CN201921867426.1U
Authority: CN
Inventors: 熊佳琪
Original assignee: Jiangxi Xinfeng Foundation Engineering Co Ltd
Current assignee: Jiangxi Xinfeng Foundation Engineering Co Ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-08-04
Anticipated expiration: 2029-11-01

Abstract

The utility model relates to a foundation ditch drainage technology field discloses a municipal construction's foundation ditch drainage structures, for solving the problem that current drainage equipment used for a long time and caused the drainage hole to block up easily, the ground of foundation ditch evenly is provided with drainage device, and one side of foundation ditch is provided with the drain pipe, the outside that lies in drainage device below the foundation ditch is provided with communicating pipe, drainage device all communicates through the connecting pipe with communicating pipe, one side of water pump is provided with the drain pipe that runs through the foundation ditch. The utility model discloses an evenly seted up drainage well at the lower soil horizon of foundation ditch, the water of foundation ditch lower part can be through gravity and extruded form to the infiltration of drainage device direction, and further the moisture that passes through drainage device with the foundation ditch bottom is discharged, is provided with the filtration of drainage cotton and geotechnological cloth in the outside of inner tube under, can effectually guarantee that drainage device exists for a long time in soil inside, and soil can not get into the inner tube and influence normal drainage.

Description

Municipal construction's foundation ditch drainage structures

Technical Field

The utility model relates to a foundation ditch drainage technology field specifically is a municipal construction's foundation ditch drainage structures.

Background

With the rapid development of modern building industry, high-rise buildings and super high-rise buildings are increasing day by day, and because the upper portion load is big, high-rise buildings and super high-rise buildings mostly adopt compensatory foundation, generally set up the multilayer basement in order to be favorable to the stability of building, but this has led to the foundation buried depth big, and the foundation ditch is excavated deeply, especially when digging deep foundation ditch in the higher area of groundwater level, soil body aquifer is cut off, and groundwater can constantly permeate the foundation ditch, causes the quicksand, side slope unstability or makes the foundation bearing capacity descend. When the deep foundation pit is excavated, a water-bearing layer in a foundation pit slope is cut off, and underground water can continuously seep out from the slope in a large area, so that a slope matrix is lost and deformed, the supporting force of the support is increased, and even the support system can deform and collapse.

Through retrieval, chinese patent discloses a foundation ditch construction drainage structures (grant No. CN209508993U), and this patent technology can be with regional drainage in slope subregion, has guaranteed that drainage speed is fast and the cloud gathers, can also guarantee the stability of foundation ditch slope, but, only depending on the regional drainage effect of infiltration slope relatively poor, water can not directly get into the drain pipe by the influence of gravity in can more partly, can continue to arrange to the inside low level position department of foundation ditch. Accordingly, those skilled in the art have provided a drainage structure for a municipal construction pit to solve the problems set forth in the background art described above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a municipal construction's foundation ditch drainage structures to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a drainage structure of a municipal construction foundation pit comprises the foundation pit, wherein a drainage device is uniformly arranged on the ground of the foundation pit, a drainage pipe is arranged on one side of the foundation pit, a communication pipe is arranged below the foundation pit and on the outer side of the drainage device, the drainage device and the communication pipe are communicated through a connection pipe, a water pump is arranged on one side of the communication pipe, and a drainage pipe penetrating through the foundation pit is arranged on one side of the water pump;

the drainage device comprises an outer pipe, outer holes are uniformly formed in the surface of the outer pipe, a well cover is arranged at the upper end of the outer pipe, water filtering cotton is arranged on the inner side of the outer pipe, a base is arranged at the lower end of the outer pipe, a permeable layer is arranged on the inner side of the water filtering cotton, geotextile is arranged on the inner layer of the permeable layer, an inner pipe is arranged on the inner side of the geotextile, seepage holes are uniformly formed in the surface of the inner pipe, and a water tank is arranged below the inner part of the inner.

As a further aspect of the present invention: the geotextile is woven by synthetic fibers, the outer pipe and the inner pipe are members made of carbon steel, the thicknesses of the outer pipe and the inner pipe are both 1cm, through holes are formed in positions of the outer pipe corresponding to the connecting pipes, and the base is of a concrete structure.

As a further aspect of the present invention: the drain pipe is connected to the earth's surface escape canal, the inboard packing of permeable formation has the sand grain that the diameter is 20-30 mm.

As a further aspect of the present invention: the water inlet of the water pump is communicated with the communicating pipe through a water pipe, and the water outlet of the water pump is connected with the water drainage pipe.

As a further aspect of the present invention: the drainage devices are arranged at positions 0.5m away from the side slope of the foundation pit, and the number of the drainage devices is not less than 12.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a drainage well has evenly been seted up on the lower soil horizon of foundation ditch, the water of foundation ditch lower part can be through gravity and extruded form to the infiltration of drainage device direction, further discharge the moisture of foundation ditch bottom through drainage device, be provided with the filtration of drainage cotton and geotechnological cloth in the outside of inner tube, can effectually guarantee that drainage device exists for a long time in soil inside, and soil can not get into the inner tube and influence normal drainage, also can guarantee through the mode that is provided with the well lid that constructor can not fall into the well, the security has been ensured.

Drawings

FIG. 1 is a schematic structural view of a municipal construction foundation pit drainage structure;

FIG. 2 is a schematic view of a drainage system in a municipal construction pit drainage structure;

fig. 3 is a sectional view of a drainage device in a municipal construction foundation pit drainage structure.

In the figure: 1. a drain pipe; 2. a water pump; 3. a drainage device; 31. an inner tube; 32. an outer bore; 33. an outer tube; 34. a water seepage hole; 35. a permeable layer; 36. draining cotton; 37. geotextile; 38. a base; 39. a water tank; 310. a well cover; 4. a connecting pipe; 5. a communicating pipe; 6. and (6) foundation pit.

Detailed Description

Please refer to fig. 1-3, in the embodiment of the utility model provides an in, a municipal construction's foundation ditch drainage structures, including foundation ditch 6, the ground of foundation ditch 6 evenly is provided with drainage device 3, drainage device 3 set up and should not be less than 12 apart from the 6 side slopes position departments of foundation ditch, and drainage device 3's quantity sets up, can effectively play ponding infiltration effect, and the setting of quantity can satisfy 6 drainage system's in foundation ditch needs.

Drainage device 3 includes outer tube 33, outer hole 32 has evenly been seted up on the surface of outer tube 33, and the upper end of outer tube 33 is provided with well lid 310, outer tube 33 inboard is provided with drainage cotton 36, and the lower extreme of outer tube 33 is provided with base 38, drainage cotton 36's inboard is provided with permeable formation 35, the inlayer of permeable formation 35 is provided with geotechnological cloth 37, geotechnological cloth 37's inboard is provided with inner tube 31, infiltration hole 34 has evenly been seted up on the surface of inner tube 31, and inner tube 31's inside below is provided with water tank 39, the water in the lower surface soil of foundation ditch 6 can be permeated to drainage cotton 36 position department by outer hole 32 on outer tube 33 surface, further permeate to permeable formation 35 by drainage cotton, pass through geotechnological cloth 37's filtration again, aquatic at this moment does not contain any soil composition already, then during moisture gets into inner tube 31 by infiltration hole.

Geotextile 37 adopts synthetic fiber to weave and forms, and outer tube 33, inner tube 31 are the component of a carbon steel material, and outer tube 33, inner tube 31 thickness are 1cm, and the through-hole has been seted up to the position department that outer tube 33 corresponds connecting pipe 4, and base 38 is a concrete structure, can guarantee the hardness of pipeline and can also avoid rusty corrosion in soil simultaneously, influence the life of equipment.

One side of foundation ditch 6 is provided with drain pipe 1, and drain pipe 1 is connected to the earth's surface escape canal, and the inboard packing of permeable formation 35 has the sand grain that the diameter is 20-30mm, and the setting of permeable formation 35 is under the prerequisite that does not disturb moisture infiltration, can effectually provide the supporting role for geotechnological cloth 37 and drainage cotton 36, under long-term service environment, guarantees that geotechnological cloth 37 and drainage cotton 36 can not warp.

The outside that lies in drainage device 3 below foundation ditch 6 is provided with communicating pipe 5, and one side of water pump 2 is provided with drain pipe 1 that runs through foundation ditch 6, and drainage device 3 all communicates through connecting pipe 4 with communicating pipe 5, and one side of communicating pipe 5 is provided with water pump 2, and water inlet of water pump 2 leads to pipe and communicates with communicating pipe 5, and the delivery port and the drain pipe 1 of water pump 2 are connected, and water pump 2 is through taking out the ponding in communicating pipe 5 and discharge foundation ditch 6 through drain pipe 1.

The utility model discloses a theory of operation is: firstly, the communication pipe 5 is embedded under the foundation pit, the drainage device 3 is further uniformly embedded on the lower surface of the foundation pit 6, the connecting pipe 4 is installed, water in the soil on the lower surface of the foundation pit 6 can permeate to the position of the drainage cotton 36 from the outer hole 32 on the surface of the outer pipe 33, the drainage cotton further permeates to the permeable layer 35 and is filtered by the geotextile 37, the water at the moment does not contain any soil component, then the water enters the inner pipe 31 from the seepage hole 34, and finally the water flows to the position of the connecting pipe 4 from the water tank 39, the arrangement of the outer pipe 33 and the inner pipe 31 can ensure the hardness of the pipeline and can also avoid rusting and corrosion in the soil to influence the service life of the equipment, the permeable layer 35 can effectively provide a supporting function for the geotextile 37 and the drainage cotton 36 on the premise of not interfering with the water permeation, and under the long-term use environment, the geotextile 37 and the drainage cotton 36 are, the water pump 2 can send the accumulated water discharged from the connecting pipe 4 to the water discharge pipe 1 through the communicating pipe 5, and the accumulated water is discharged from the ground surface drainage ditch.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A municipal construction foundation pit drainage structure comprises a foundation pit (6) and is characterized in that a drainage device (3) is uniformly arranged on the ground of the foundation pit (6), a drainage pipe (1) is arranged on one side of the foundation pit (6), a communication pipe (5) is arranged below the foundation pit (6) and positioned on the outer side of the drainage device (3), the drainage device (3) and the communication pipe (5) are communicated through a connecting pipe (4), a water pump (2) is arranged on one side of the communication pipe (5), and the drainage pipe (1) penetrating through the foundation pit (6) is arranged on one side of the water pump (2);

drainage device (3) include outer tube (33), outer hole (32) have evenly been seted up on the surface of outer tube (33), and the upper end of outer tube (33) is provided with well lid (310), outer tube (33) inboard is provided with drainage cotton (36), and the lower extreme of outer tube (33) is provided with base (38), the inboard of drainage cotton (36) is provided with permeable formation (35), the inlayer of permeable formation (35) is provided with geotechnological cloth (37), the inboard of geotechnological cloth (37) is provided with inner tube (31), infiltration hole (34) have evenly been seted up on the surface of inner tube (31), and the inside below of inner tube (31) is provided with water tank (39).

2. The foundation pit drainage structure for municipal construction according to claim 1, wherein the geotextile (37) is woven from synthetic fibers, the outer pipe (33) and the inner pipe (31) are both members made of carbon steel, the thicknesses of the outer pipe (33) and the inner pipe (31) are both 1cm, a through hole is formed in the position of the outer pipe (33) corresponding to the connecting pipe (4), and the base (38) is of a concrete structure.

3. The municipal foundation pit drainage structure according to claim 1, wherein the drainage pipe (1) is connected to a surface drain, and the inner side of the permeable layer (35) is filled with sand grains having a diameter of 20-30 mm.

4. The municipal foundation pit drainage structure according to claim 1, wherein the water inlet of the water pump (2) is communicated with the communication pipe (5) through a water pipe, and the water outlet of the water pump (2) is connected with the drainage pipe (1).

5. The municipal foundation pit drainage structure according to claim 1, wherein the drainage means (3) is provided at a position 0.5m away from the side slope of the foundation pit (6), and the number of the drainage means (3) is not less than 12.