Can effectively prevent building foundation ditch of rainwater infiltration
Technical Field
The utility model relates to a foundation ditch technical field, concretely relates to can effectively prevent building foundation ditch of rainwater infiltration area.
Background
The foundation pit is a soil pit excavated at the design position of the foundation according to the elevation of the foundation and the plane size of the foundation. Before excavation, an excavation scheme is determined according to geological and hydrological data and the conditions of buildings nearby the site, a side slope can be set for people who do not excavate deeply, so that the soil slope is stable, and the gradient of the soil slope is determined according to relevant construction regulations. When a building is excavated deeply and nearby, a foundation pit wall supporting method and a concrete-sprayed wall protecting method can be used, a large foundation pit is even interlocked by adopting underground continuous walls and column-type cast-in-situ bored piles, and the like, so that the outer soil layer is prevented from collapsing, nearby buildings are unaffected, the underground water level can be reduced by a well point method, slope-laying open excavation is adopted, natural cold air freezing excavation can be adopted in cold regions, and the like.
The existing building foundation pit four-wall waterproof measures are not enough, rainwater easily permeates into the foundation pit from the soil outside the foundation pit, and the bottom of the existing building foundation pit is difficult to drain conveniently, so that the rainwater is easily accumulated, and normal construction work can be influenced.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to overcome the defects of the prior art, the building foundation pit capable of effectively preventing rainwater infiltration is provided, and the problems that the existing building foundation pit is insufficient in four-wall waterproof measures and rainwater easily infiltrates into the interior of the foundation pit from the soil outside the foundation pit are solved.
(II) technical scheme
The utility model discloses a following technical scheme realizes: the utility model provides a can effectively prevent building foundation ditch of rainwater infiltration area, including foundation ditch, infiltration layer and barrier layer, the bottom is provided with the prevention of seepage bottom in the foundation ditch, prevention of seepage bottom lower extreme one side is provided with the drain pipe, prevention of seepage bottom upper end is provided with the sandstone layer, sandstone layer upper end is provided with the infiltration layer, be provided with on the inner wall of foundation ditch four sides and add the net, be provided with on the interior wall of add the net the barrier layer, be provided with the waterproof layer on the barrier layer inner wall.
Furthermore, the anti-seepage bottom layer is connected with the bottom end in the foundation pit in a pouring mode, the anti-seepage bottom layer has a slope, and the drain pipe is connected with one side of the lower end of the anti-seepage bottom layer in a pouring mode.
Through adopting above-mentioned technical scheme, prevention of seepage ground water to in the foundation ditch can be prevented to the prevention of seepage bottom, has the slope the prevention of seepage bottom can be in when having water in the foundation ditch, make the sufficient convenient flow of water accumulate to the lower end of prevention of seepage bottom.
Furthermore, the gravel layer is connected with the anti-seepage bottom layer in a pouring mode, the water seepage layer is connected with the gravel layer in a pouring mode, and the water seepage layer can be constructed by water seepage bricks and the like.
Through adopting above-mentioned technical scheme, grit layer structure is firm, can make the infiltration that hydroenergy is convenient enough descend, the water seepage layer can make the grit layer surface is more level and more smooth, the water seepage layer has good water permeability.
Furthermore, the reinforcing net is a reinforcing mesh, the reinforcing mesh is connected with the inner wall of the foundation pit in a pouring mode, and the impermeable layer is connected with the reinforcing mesh in a pouring mode.
By adopting the technical scheme, the reinforcing net can reinforce the soil on the four walls of the foundation pit, so that the foundation pit structure is more stable, and the impermeable layer has good impermeable performance.
Furthermore, the waterproof layer with the barrier layer is pour and is connected, foundation ditch top one side is provided with the water pump, be provided with the drinking-water pipe on the water pump lateral wall, the water pump is kept away from be provided with the raceway on the drinking-water pipe lateral wall.
By adopting the technical scheme, the waterproof layer has excellent waterproof performance, and water outside the foundation pit can be more effectively prevented from accumulating in the foundation pit by matching with the impermeable layer.
Further, the drinking-water pipe and the raceway all with the water pump passes through flange joint, the drinking-water pipe stretches into inside the foundation ditch, the drinking-water pipe is kept away from water pump one end has the filter head through flange joint, filter head bottom middle part is embedded to have the filter screen.
By adopting the technical scheme, the lower end of the filter head can be close to the bottom end of the foundation pit, when rainwater is large, the water pump can be used for pumping water in the foundation pit through the water pumping pipe during working, then the water pump can be discharged through the water conveying pipe, and the filter screen can prevent the water pump from pumping some impurities into the water pumping pipe during working so as to prevent the water pumping pipe from being blocked.
(III) advantageous effects
Compared with the prior art, the utility model, following beneficial effect has:
in order to solve the problems that the existing building foundation pit four-wall waterproof measures are insufficient and rainwater is easy to permeate into the foundation pit from the soil outside the foundation pit, the utility model can ensure that the four walls of the foundation pit have excellent waterproof and anti-seepage performances by arranging the reinforcing net, the anti-seepage layer and the waterproof layer, can effectively prevent the rainwater from permeating into the foundation pit through the soil outside the foundation pit during raining, and is very practical; and current building foundation ditch bottom is difficult to convenient drainage, makes the problem that the rainwater accumulated easily, the utility model discloses a set up infiltration layer, gravel layer, prevention of seepage bottom and drain pipe, can make the rainwater accumulate fast and discharge through the drain pipe in the foundation ditch bottom, the drainage is very convenient quick, can prevent effectively that the rainwater from accumulating in the foundation ditch.
Drawings
FIG. 1 is a schematic structural view of a building foundation pit capable of effectively preventing rainwater infiltration according to the present invention;
FIG. 2 is a sectional view of a building foundation pit according to the present invention, which can effectively prevent rainwater infiltration;
FIG. 3 is a schematic structural view of a water pumping pipe and a filtering head in a building foundation pit capable of effectively preventing rainwater infiltration according to the present invention;
fig. 4 is a bottom view of the filtering head in the building foundation pit which can effectively prevent rainwater infiltration.
The reference numerals are explained below:
1. a foundation pit; 2. a barrier bottom layer; 3. a drain pipe; 4. a sandstone layer; 5. a water seepage layer; 6. reinforcing the net; 7. an impermeable layer; 8. a waterproof layer; 9. a water pump; 10. a water pumping pipe; 11. a water delivery pipe; 12. a filter head; 13. and (4) a filter screen.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in 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.
As shown in fig. 1-4, the building foundation pit capable of effectively preventing rainwater infiltration in this embodiment includes a foundation pit 1, a water seepage layer 5 and an impermeable layer 7, an impermeable bottom layer 2 is disposed at a bottom end of the foundation pit 1, a drain pipe 3 is disposed at one side of a lower end of the impermeable bottom layer 2, a sandstone layer 4 is disposed at an upper end of the impermeable bottom layer 2, the water seepage layer 5 is disposed at an upper end of the sandstone layer 4, a reinforcing net 6 is disposed on inner walls of four sides of the foundation pit 1, the impermeable layer 7 is disposed on an inner wall of the reinforcing net 6, and a waterproof layer 8 is disposed.
As shown in fig. 1-2, the anti-seepage bottom layer 2 is connected with the bottom end of the foundation pit 1 in a pouring manner, the anti-seepage bottom layer 2 has a slope, the drain pipe 3 is connected with one side of the lower end of the anti-seepage bottom layer 2 in a pouring manner, one end of the drain pipe 3, which is far away from the anti-seepage bottom layer 2, can be connected to a water storage pit and the like, the anti-seepage bottom layer 2 can prevent groundwater from permeating into the foundation pit 1, and the anti-seepage bottom layer 2 with the slope can enable water to conveniently flow and accumulate to the lower end of the anti-seepage bottom layer 2.
As shown in fig. 1-2, the gravel layer 4 is connected with the impermeable bottom layer 2 in a pouring manner, the water seepage layer 5 is connected with the gravel layer 4 in a pouring manner, the water seepage layer 5 can be constructed by water seepage bricks and the like, the gravel layer 4 is stable in structure, water can conveniently seep down, the water seepage layer 5 can enable the surface of the gravel layer 4 to be more smooth, and the water seepage layer 5 has good water seepage property, so that the water in the foundation pit 1 can conveniently seep down.
As shown in fig. 1-2, the reinforcing mesh 6 is a reinforcing mesh, the reinforcing mesh 6 is connected with the inner wall of the foundation pit 1 by casting, the impermeable layer 7 is connected with the reinforcing mesh 6 by casting, the reinforcing mesh 6 can reinforce the soil on the four walls of the foundation pit 1, so that the foundation pit 1 has a more stable structure, and the impermeable layer 7 can prevent water outside the foundation pit 1 from permeating into the foundation pit 1.
As shown in fig. 1-2, waterproof layer 8 and barrier layer 7 are poured and connected, one side of foundation ditch 1 top is provided with water pump 9, is provided with drinking-water pipe 10 on a lateral wall of water pump 9, and water pump 9 keeps away from and is provided with raceway 11 on the lateral wall of drinking-water pipe 10, and waterproof layer 8 has splendid waterproof nature, and cooperation barrier layer 7 can prevent the outer water of foundation ditch 1 to accumulate in foundation ditch 1 more effectively, and is very practical.
As shown in fig. 1-4, the water pumping pipe 10 and the water pipe 11 are both connected to the water pump 9 through flanges, the water pumping pipe 10 extends into the foundation pit 1, one end of the water pumping pipe 10, which is far away from the water pump 9, is connected to a filter head 12 through a flange, a filter screen 13 is embedded in the middle of the bottom end of the filter head 12, the lower end of the filter head 12 can be close to the bottom end of the foundation pit 1, when rainwater is large, the water pump 9 can pump water in the foundation pit 1 through the water pumping pipe 10 during working, and then the water is discharged through the water pipe 11, the filter screen 13 can prevent the water pump 9 from pumping some impurities into the water pumping pipe 10 during working, so as to prevent the water pumping pipe 10 from being blocked, and the filter head 12 can be conveniently taken.
The specific implementation process of this embodiment is as follows: the reinforcing nets 6 on the four walls of the foundation pit 1 can reinforce the soil on the four walls of the foundation pit 1, so that the structure of the foundation pit 1 is more stable, the impermeable layer 7 and the waterproof layer 8 have excellent impermeable performance and waterproof performance, water outside the foundation pit 1 can be effectively prevented from permeating into the foundation pit 1, rainwater can be prevented from permeating into the foundation pit 1 through the soil outside the foundation pit 1 during raining, the water permeable layer 5 has good water permeability, the sandstone layer 4 has a stable structure, water can conveniently permeate down, the surface of the sandstone layer 4 can be smoother through the water permeable layer 5 and the sandstone layer 4, the water in the foundation pit 1 can conveniently permeate down, the impermeable bottom layer 2 has good waterproof performance and impermeable performance, the impermeable bottom layer 2 has a slope, and when water exists in the foundation pit 1, the water can conveniently flow and accumulate to the lower end of the impermeable bottom layer 2 so as to be drained to the outside through the drain pipe 3, it is very convenient, when the rainwater is great, water pump 9 extracts at the water of work accessible drinking-water pipe 10 in to foundation ditch 1, then discharges through raceway 11, and filter screen 13 can prevent that water pump 9 from taking some impurity suction pipes 10 in the during operation to prevent that drinking-water pipe 10 from blockking up, but filter head 12 can be convenient when needs clean maintenance take off from drinking-water pipe 10, so that clean maintenance.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.