CN112900461B - Drainage system for building construction site and use method - Google Patents

Drainage system for building construction site and use method Download PDF

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Publication number
CN112900461B
CN112900461B CN202110067886.1A CN202110067886A CN112900461B CN 112900461 B CN112900461 B CN 112900461B CN 202110067886 A CN202110067886 A CN 202110067886A CN 112900461 B CN112900461 B CN 112900461B
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pipe
water
water seepage
construction site
drainage system
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CN112900461A (en
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谢启明
林丽群
谢启亮
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Guangzhou Junling Construction Co ltd
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Guangzhou Junling Construction Co ltd
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00Keeping dry foundation sites or other areas in the ground
    • E02D19/06Restraining of underground water
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00Keeping dry foundation sites or other areas in the ground
    • E02D19/06Restraining of underground water
    • E02D19/10Restraining of underground water by lowering level of ground water

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

The application relates to a drainage system for a building construction site and a using method thereof, and the drainage system comprises a foundation pit arranged on the construction site, wherein a plurality of water seepage pipes wound around the foundation pit are inserted in the construction site, the bottom ends of the water seepage pipes are communicated with a preset water suction pump on the construction site through preset water suction pipes, and the periphery of the top of each water seepage pipe is communicated with a preset water injection pump on the construction site through a preset water injection pipe; a plurality of groups of water seepage holes which are arranged at intervals are formed in the periphery of the bottom of the water seepage pipe, and the water seepage holes are obliquely and spirally arranged on the periphery of the water seepage pipe along the length direction of the water seepage pipe; the water seepage pipe inner chamber rotationally inlays and is equipped with the shutoff pipe with the laminating of water seepage inside pipe wall to the water seepage pipe inner chamber is equipped with and is used for driving shutoff pipe pivoted drive assembly, sets up the hole of dodging of extending along its length direction on the shutoff pipe, dodges the hole and can align with arbitrary a set of infiltration hole along with shutoff pipe pivoted in-process. This application can reduce the construction degree of difficulty in the foundation ditch, reduces the condition emergence that the foundation ditch lateral wall appears collapsing.

Description

Drainage system for building construction site and use method
Technical Field
The application relates to the technical field of construction site drainage, in particular to a drainage system for a building construction site and a using method.
Background
With the development of society, the continuous progress of science and technology, the improvement of economic level, more and more housing construction pulls out the land, has solved people's house problem, has improved the quality of people's living environment.
In the construction process of the house building, a foundation pit needs to be excavated on a construction site, and the foundation pit is a soil pit excavated at the design position of a foundation according to the elevation of the foundation and the plane size of the foundation. When the depth of the foundation pit is below the natural underground water level, underground water can continuously permeate into the foundation pit from the side wall of the foundation pit and the bottom of the foundation pit. In order to ensure that the foundation pit can be constructed under a dry condition and prevent the problems of slope instability, basic quicksand, pit bottom swelling and the like, a water collecting ditch is usually arranged at the bottom of the foundation pit, and a water suction pump is arranged in the water collecting ditch to drain water gathered in the water collecting ditch.
However, the inventor thinks that the underground water continuously permeates into the foundation pit from the side wall and the bottom of the foundation pit, which indicates that the soil on the side wall and the bottom of the foundation pit contains a large amount of water, so that the construction difficulty is easily increased, and even the collapse of the side wall of the foundation pit is easily caused; therefore, there is room for improvement.
Disclosure of Invention
In order to reduce the construction difficulty in the foundation pit and reduce the condition that the foundation pit lateral wall appears collapsing, the application provides a building construction site drainage system and application method.
In a first aspect, the application provides a drainage system for a building construction site, which adopts the following technical scheme:
a drainage system for a building construction site comprises a foundation pit arranged on the construction site, wherein a plurality of water seepage pipes wound around the periphery of the foundation pit are inserted into the construction site, the bottom ends of the water seepage pipes are communicated with a preset water suction pump on the construction site through preset water suction pipes, and the periphery of the top of each water seepage pipe is communicated with a preset water injection pump on the construction site through a preset water injection pipe; a plurality of groups of water seepage holes which are arranged at intervals are formed in the periphery of the bottom of the water seepage pipe, and the water seepage holes are obliquely and spirally arranged on the periphery of the water seepage pipe along the length direction of the water seepage pipe; the infiltration pipe inner chamber rotationally inlays the shutoff pipe that is equipped with and seeps the intraductal laminating of pipe, and the infiltration pipe inner chamber is equipped with and is used for driving shutoff pipe pivoted drive assembly, set up the hole of dodging of extending along its length direction on the shutoff pipe, and it can be aligned with arbitrary a set of infiltration hole along with shutoff pipe pivoted in-process to dodge the hole.
By adopting the technical scheme, the driving assembly drives the blocking pipe to rotate to a certain angle in the inner cavity of the water seepage pipe, so that the avoiding hole is aligned with part of the water seepage holes at the required height position, the water suction pump is started to enable the inner cavity of the water seepage pipe to generate negative pressure, and the water in the soil at the required height position can be sucked into the inner cavity of the water seepage pipe and pumped out by the water suction pump, so that the water in the soil at the side wall and the bottom of the foundation pit is pumped out, the construction difficulty in the foundation pit is reduced, the collapse of the side wall of the foundation pit is reduced, and the water seepage holes staggered with the avoiding hole are blocked by the blocking pipe, so that the water seepage holes aligned with the avoiding hole can have a stronger water suction effect, and the speed of the water entering the inner cavity of the water seepage pipe is accelerated; in addition, in the normal working process of the water suction pump, the driving assembly can drive the blocking pipe to rotate at a certain angle in the inner cavity of the water seepage pipe, so that the avoiding hole is aligned with part of water seepage holes at other height positions, and the moisture in the soil at other height positions is quickly sucked into the inner cavity of the water seepage pipe; when the drainage system runs for a long time and partial seepage holes are blocked, the water injection pump is started to inject water into the inner cavity of the seepage pipe, then the driving assembly drives the blocking pipe to rotate at a high speed in the inner cavity of the seepage pipe, so that a plurality of groups of seepage holes are aligned with the avoidance holes in sequence, the seepage holes aligned with the avoidance holes can be impacted by water pressure, the backwashing effect of the water injection pump on the seepage pipe is realized, and the drainage system has the backwashing function so as to dredge the seepage holes; in addition, the blocking pipe rotates in the inner cavity of the water seepage pipe at a high speed, so that the water pressure impact force on each group of water seepage holes changes continuously, and the back washing effect of the water injection pump on the water seepage pipe is promoted.
Optionally, drive assembly includes driving motor, drive shaft and a plurality of flabellum along drive shaft evenly distributed, wherein, driving motor is located the top that infiltration pipe and water injection pipe are linked together the department, drive shaft one end is connected with driving motor's output shaft, and the other end is connected with the link that the shutoff pipe center was predetermine, every the flabellum all spirals in the drive shaft periphery along drive shaft length direction slope, the water injection pipe is tangent and forms the water impact to flabellum one side with infiltration pipe inner wall.
Through adopting above-mentioned technical scheme, when driving motor drove the drive shaft and rotates, the drive shaft can drive the shutoff pipe and rotate at infiltration pipe inner chamber to when the water injection pump passed through the water injection pipe toward infiltration pipe inner chamber water injection, rivers can form the water impact to one side of flabellum, provide power for the rotation of drive shaft, with the resistance that reduces driving motor and received, thereby play protection driving motor inner element, extension driving motor life's effect.
Optionally, the driving shaft includes two connecting shafts, a spline shaft and a spline housing, which are coaxially arranged, wherein one end of each of the two connecting shafts, which is close to each other, is fixedly provided with the spline shaft and the spline housing, the spline shaft is slidably embedded in the spline housing, and the end of the spline shaft slidably embedded in the spline housing is connected with a preset elastic member in the spline housing.
Through adopting above-mentioned technical scheme, the total length of drive shaft can the pressurized shorten or stretch the extension to the total length of drive shaft shortens or the in-process of extension, keeps synchronous rotation between two connecting axles, thereby makes the installation of shutoff pipe more convenient.
Optionally, the bottom in infiltration pipe inner chamber is equipped with a plurality of balls along infiltration pipe center evenly distributed, and every the ball all contacts with shutoff bottom of the tube end.
Through adopting above-mentioned technical scheme, the top of ball all contacts with shutoff bottom of the tubes end, can reduce the friction between the bottom of shutoff bottom of the tubes end and infiltration pipe inner chamber, reduces the helping hand that the shutoff pipe rotated the in-process and received to play the effect of protection driving motor internal element, extension driving motor life.
Optionally, dodge hole one side and be equipped with the slope swash plate that extends inwards dodge the hole along with the rotatory in-process of shutoff pipe, swash plate upstream face one side orientation and the infiltration hole of dodging the hole and being aligned.
By adopting the technical scheme, the drainage system runs for a long time, partial seepage holes are blocked, and the water injection pump is started to carry out backwashing on the seepage pipe, along with the high-speed rotation of the blocking pipe in the inner cavity of the seepage pipe, partial water generates larger centrifugal acting force under the action of the inclined plate, so that the impact force of water pressure on the seepage holes is increased, and the backwashing effect of the water injection pump on the seepage pipe is favorably improved.
Optionally, the periphery of the bottom of the water seepage pipe is covered with a water seepage net at the position corresponding to the water seepage holes.
Through adopting above-mentioned technical scheme, the infiltration net can intercept partial soil, reduces the soil erosion and water loss that the drainage in-process caused.
Optionally, the infiltration pipe includes that the opening arranges up body and opening arrange down and be used for installing driving motor's tube cap, wherein, the body top is connected through the screw thread with the tube cap bottom to be equipped with the sealing washer between body top and the tube cap bottom.
Through adopting above-mentioned technical scheme, body and the detachable connection of tube cap of infiltration pipe can be convenient for maintain the change to the drive assembly in the infiltration pipe.
Optionally, the water pumping pipe and the water injection pipe are respectively provided with a first electromagnetic valve and a second electromagnetic valve.
By adopting the technical scheme, the first electromagnetic valve is controlled to be opened and the second electromagnetic valve is controlled to be closed during drainage, and the second electromagnetic valve is controlled to be opened and the second electromagnetic valve is controlled to be closed during backwashing, so that the inner cavity of the water seepage pipe can be ensured to have high enough pressure, and drainage and backwashing effects can be improved.
In a second aspect, the application provides a method for using a drainage system in a building construction site, which comprises the following steps:
s1, controlling the first electromagnetic valve to be opened and controlling the second electromagnetic valve to be closed;
s2, driving the plugging pipe to rotate to a certain angle through the driving assembly, and aligning the avoidance hole with a part of water seepage holes at the position with the required height;
s3, starting a water suction pump to enable the inner cavity of the water seepage pipe to generate negative pressure, so that water in soil at a required height position can be sucked into the inner cavity of the water seepage pipe and pumped out by the water suction pump;
s4, the driving assembly drives the blocking pipe to rotate for a certain angle, so that the avoiding holes are aligned with partial water seepage holes at other height positions, and water in soil at other height positions is sucked into the inner cavity of the water seepage pipe and pumped out by the water pump.
By adopting the technical scheme, the seepage holes staggered with the avoidance holes are blocked by the blocking pipes, so that the seepage holes aligned with the avoidance holes can have stronger water absorption effect, and the speed of water entering the inner cavities of the seepage pipes is increased; in addition, in the normal working process of the water suction pump, the driving assembly can drive the blocking pipe to rotate at a certain angle in the inner cavity of the water seepage pipe, so that the avoiding hole is aligned with partial water seepage holes at other height positions, and moisture in soil at other height positions is quickly sucked into the inner cavity of the water seepage pipe.
In summary, the present application includes at least one of the following beneficial technical effects:
the driving assembly drives the blocking pipe to rotate to a certain angle in the inner cavity of the water seepage pipe, so that the avoiding hole is aligned with part of the water seepage holes at the required height position, the water suction pump is started to enable the inner cavity of the water seepage pipe to generate negative pressure, and moisture in soil at the required height position can be sucked into the inner cavity of the water seepage pipe and pumped out by the water suction pump, so that moisture contained in the soil at the side wall and the bottom of the foundation pit is pumped out, the construction difficulty in the foundation pit is reduced, the collapse of the side wall of the foundation pit is reduced, and the water seepage holes staggered with the avoiding hole are blocked by the blocking pipe, so that the water seepage holes aligned with the avoiding hole can have a stronger water suction effect, and the speed of the moisture entering the inner cavity of the water seepage pipe is accelerated; in addition, in the normal working process of the water suction pump, the driving assembly can drive the blocking pipe to rotate at a certain angle in the inner cavity of the water seepage pipe, so that the avoiding hole is aligned with part of water seepage holes at other height positions, and the moisture in the soil at other height positions is quickly sucked into the inner cavity of the water seepage pipe;
when the drainage system runs for a long time and partial seepage holes are blocked, the water injection pump is started to inject water into the inner cavity of the seepage pipe, then the driving assembly drives the blocking pipe to rotate at a high speed in the inner cavity of the seepage pipe, so that a plurality of groups of seepage holes are aligned with the avoidance holes in sequence, the seepage holes aligned with the avoidance holes can be impacted by water pressure, the backwashing effect of the water injection pump on the seepage pipe is realized, and the drainage system has the backwashing function so as to dredge the seepage holes; in addition, the blocking pipe rotates at a high speed in the inner cavity of the water seepage pipe, so that the water pressure impact force on each group of water seepage holes is changed continuously, and the back washing effect of the water injection pump on the water seepage pipe is improved;
when the drainage system runs for a long time and part of the water seepage holes are blocked, and the water injection pump is started to carry out back flushing on the water seepage pipes, along with the high-speed rotation of the blocking pipes in the inner cavities of the water seepage pipes, part of water generates larger centrifugal acting force under the action of the inclined plates so as to increase the impact force of water pressure on the water seepage holes, thereby being beneficial to improving the back flushing effect of the water injection pump on the water seepage pipes.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is a schematic view of the overall structure of the water seepage pipe in the embodiment of the present application.
Fig. 3 is a cross-sectional view of an embodiment of the present application.
Fig. 4 is a sectional view of a water seepage pipe in the embodiment of the present application.
Fig. 5 is an enlarged view of a in fig. 3.
Description of reference numerals: 1. a water seepage pipe; 11. a pipe body; 12. a tube cover; 13. a seal ring; 14. a water seepage hole; 2. a water pumping pipe; 21. a water pump; 22. a first solenoid valve; 3. a water injection pipe; 31. a water injection pump; 32. a second solenoid valve; 4. plugging the pipe; 41. avoiding holes; 42. a sloping plate; 5. a drive assembly; 51. a drive motor; 52. a drive shaft; 521. a connecting shaft; 522. a spline shaft; 523. a spline housing; 524. an elastic member; 53. a fan blade; 54. a connecting frame; 6. a ball bearing; 100. and (6) foundation pit.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses building site drainage system is built in room.
Referring to fig. 1, building construction site drainage system is including seting up the foundation ditch 100 on the construction site, still includes a plurality of infiltration pipes 1 that are vertical arranging and insert and locate on the construction site, and wherein, a plurality of infiltration pipes 1 mutual interval arrangement and around setting up around foundation ditch 100.
Referring to fig. 2 and 3, each water seepage pipe 1 comprises a pipe body 11 and a pipe cover 12, wherein the pipe body 11 and the pipe cover 12 are both of a round tubular structure, and the bottom of the pipe body 11 and the top of the pipe cover 12 are both of a closed structure, that is, the pipe body 11 is arranged with an opening facing upwards, and the pipe cover 12 is arranged with an opening facing downwards; the pipe body 11 is inserted into a construction site from top to bottom, the bottom of the pipe body 11 is lower than the bottom of the foundation pit 100, the top of the pipe body 11 is exposed out of the construction site, an internal thread is arranged on the inner periphery of the top of the pipe body 11, an external thread matched with the internal thread is arranged on the outer periphery of the bottom of the pipe cover 12, and the top of the pipe body 11 and the bottom of the pipe cover 12 can be connected through the thread to form the water seepage pipe 1 with a cavity together; in addition, the top of the tube 11 is fixedly provided with a sealing ring 13 with a circular ring structure by gluing, so that when the top of the tube 11 is connected with the bottom of the tube cover 12 by threads, the bottom of the tube cover 12 is abutted against the sealing ring 13, thereby increasing the connection sealing property between the top of the tube 11 and the bottom of the tube cover 12.
In this embodiment, body 11 one side of infiltration pipe 1 is fixed to be provided with and is vertical drinking-water pipe 2 of arranging to the mid-mounting of drinking-water pipe 2 has the first solenoid valve 22 that is used for controlling that drinking-water pipe 2 switches on or closes, and the bottom of drinking-water pipe 2 is linked together with the bottom of body 11, and the top of drinking-water pipe 2 is vertical to be extended upwards and to be exposed in construction site, and the top of drinking-water pipe 2 is linked together with the suction pump 21 that predetermines on the construction site, makes the suction pump 21 operation, and infiltration pipe 1 inner chamber can produce the negative pressure.
The periphery of infiltration pipe 1 bottom has been seted up the multiunit and has been interval arrangement's infiltration hole 14, every group infiltration hole 14 all includes a plurality of infiltration holes 14 of seting up in infiltration pipe 1 bottom periphery along vertical interval, and multiunit infiltration hole 14 spirals in infiltration pipe 1 periphery along the slope of infiltration pipe 1 length direction, promptly, all be interval arrangement along 1 circumferencial direction of infiltration pipe and on infiltration pipe 1 length direction between the multiunit infiltration hole 14, when making suction pump 21 operation in order to make 1 inner chamber of infiltration pipe produce the negative pressure, moisture that contains in the soil of 100 lateral walls of foundation ditch and 100 bottoms of foundation ditch can see through infiltration hole 14 and get into 1 inner chamber of infiltration pipe, and discharge by drinking-water pipe 2, make the structure of 100 lateral walls of foundation ditch more stable, be difficult for appearing the phenomenon of collapsing.
Referring to fig. 3 and 4, in the present embodiment, the inner cavity of the water seepage pipe 1 is provided with a plugging pipe 4 in a circular tubular structure, and the outer contour of the plugging pipe 4 is matched with the inner contour of the water seepage pipe 1, that is, the outer wall of the plugging pipe 4 is attached to the inner wall of the water seepage pipe 1, so as to plug the water seepage holes 14 on the water seepage pipe 1.
1 inner chamber of infiltration pipe is equipped with a drive assembly 5, drive assembly 5 can be used for driving shutoff pipe 4 and rotate at 1 inner chamber of infiltration pipe, it is concrete, drive assembly 5 includes driving motor 51, drive shaft 52 and a plurality of flabellum 53 along drive shaft 52 evenly distributed, wherein, driving motor 51 is fixed to be set up in tube cap 12, and driving motor 51's output shaft is vertical arranging down, drive shaft 52 is vertical, the top of drive shaft 52 is connected fixedly with driving motor 51's output shaft, the bottom of drive shaft 52 is connected fixedly with the link 54 that the shutoff pipe 4 center was predetermine, when making driving motor 51 drive shaft 52 rotate, shutoff pipe 4 rotates at 1 inner chamber of infiltration pipe.
Offer the hole of dodging 41 that extends along its length direction on the shutoff pipe 4 for dodging hole 41 along with shutoff pipe 4 at infiltration pipe 1 inner chamber pivoted in-process, dodging hole 41 can be aligned with arbitrary a set of infiltration hole 14, make this group of infiltration hole 14 can supply the infiltration pipe 1 inner chamber of moisture infiltration in the soil of foundation ditch 100 lateral wall and foundation ditch 100 bottom, otherwise, with dodging hole 41 staggered infiltration hole 14 each other and receive the shutoff of shutoff pipe 4 and can't realize its infiltration effect.
When extracting the moisture in the soil on the side wall of the foundation pit 100 and the bottom of the foundation pit 100, firstly, the driving assembly 5 drives the blocking pipe 4 to rotate to a certain angle in the inner cavity of the water seepage pipe 1, so that the avoiding hole 41 is aligned with part of the water seepage holes 14 at the required height position, then the water suction pump 21 is started to enable the inner cavity of the water seepage pipe 1 to generate negative pressure, so that the moisture in the soil at the required height position can be sucked into the inner cavity of the water seepage pipe 1, and the water seepage holes 14 which are mutually staggered with the avoiding hole 41 are blocked by the blocking pipe 4, so that the water seepage holes 14 aligned with the avoiding hole 41 can have a stronger water absorption effect, and the speed of the moisture entering the inner cavity of the water seepage pipe 1 is accelerated; in addition, in the normal working process of the water suction pump 21, the driving assembly 5 can drive the blocking pipe 4 to rotate at a certain angle in the inner cavity of the water seepage pipe 1, so that the avoiding hole 41 is aligned with part of the water seepage holes 14 at other height positions, and the moisture in the soil at other height positions is quickly sucked into the inner cavity of the water seepage pipe 1.
In this embodiment, 11 top one side of body of infiltration pipe 1 is equipped with the water injection pipe 3 that is the horizontal arrangement, and the mid-mounting of water injection pipe 3 has the second solenoid valve 32 that is used for controlling water injection pipe 3 and switches on or close, the one end of water injection pipe 3 is linked together with the top of body 11 and is tangent relation with 1 inner wall of infiltration pipe, the other end is linked together with the water injection pump 31 of predetermineeing on the construction site, make water injection pump 31 operation, can toward 1 inner chamber water injection of infiltration pipe, and make the water utensil of 1 inner chamber of infiltration pipe possess certain pressure.
When the drainage system runs for a long time and partial water seepage holes 14 are blocked, the water injection pump 31 is started to inject water into the inner cavity of the water seepage pipe 1, then the driving assembly 5 drives the blocking pipe 4 to rotate in the inner cavity of the water seepage pipe 1 at a high speed, so that the avoiding holes 41 are sequentially aligned with a plurality of groups of water seepage holes 14, and the water seepage holes 14 staggered with the avoiding holes 41 are blocked by the blocking pipe 4, so that the water seepage holes 14 aligned with the avoiding holes 41 can be impacted by stronger water pressure, and the backwashing effect of the water injection pump 31 on the water seepage pipe 1 is favorably improved; in addition, because the blocking pipe 4 rotates at a high speed in the inner cavity of the water seepage pipe 1, the water pressure impact force applied to each group of water seepage holes 14 changes constantly, and the back washing effect of the water injection pump 31 on the water seepage pipe 1 is improved.
In this embodiment, a plurality of flabellum 53 that evenly distributed along drive shaft 52 one side all spirals in the periphery of drive shaft 52, and the opposite side is tangent relation with infiltration pipe 1 inner wall to when water injection pump 31 passes through water injection pipe 3 and when the water injection pipe 1 inner chamber water injection, rivers can form water impact to one side of flabellum 53, provide power for the rotation of drive shaft 52, in order to reduce the resistance that driving motor 51 received, thereby play the effect of protection driving motor 51 inner member, extension driving motor 51 life.
Referring to fig. 3 and 5, in the present embodiment, the driving shaft 52 includes two connecting shafts 521, a spline shaft 522 and a spline housing 523, which are coaxially arranged, wherein one ends of the two connecting shafts 521, which are away from each other, are respectively connected and fixed with the output shaft of the driving motor 51 and the connecting frame 54 located at the center of the blocking tube 4, the spline shaft 522 and the spline housing 523 are respectively and fixedly disposed at one ends of the two connecting shafts 521, which are close to each other, the spline shaft 522 is slidably embedded in the spline housing 523, and the end of the spline shaft 522 slidably embedded in the spline housing 523 is connected with the bottom of the spline housing 523 through a preset elastic member 524, the elastic member 524 in the present embodiment is a spring, so that when a tensile force or a compressive force is applied between the two connecting shafts 521, the total length of the driving shaft 52 can be extended or shortened. In-process through threaded connection between body 11 and tube cap 12, along with tube cap 12 highly progressively reduces, tube cap 12 can drive shutoff pipe 4 through drive shaft 52 and progressively reduces, when the bottom of shutoff pipe 4 bottom and infiltration pipe 1 inner chamber contacted, the both ends of drive shaft 52 can receive the compression effort, make the total length of drive shaft 52 shorten, and the shortening of drive shaft 52 total length can not influence the synchronous rotation between two connecting axles 521, thereby make the installation of shutoff pipe 4 more convenient.
In this embodiment, a plurality of support grooves along infiltration pipe 1 center evenly distributed are seted up to the bottom of infiltration pipe 1 inner chamber, every supports the inslot and all is equipped with a ball 6, the top of every ball 6 all exposes in corresponding support groove, and the top of every ball 6 all contacts with shutoff pipe 4 bottom, in order to reduce the friction between the bottom of shutoff pipe 4 bottom and infiltration pipe 1 inner chamber, reduce the helping hand that shutoff pipe 4 rotated the in-process and received, thereby play protection driving motor 51 inner member, extension driving motor 51 life's effect.
Referring to fig. 3 and 4, in the present embodiment, an inclined plate 42 extending obliquely inward is integrally formed on one side of the avoiding hole 41, and during the rotation of the inclined plate 42 on the side of the avoiding hole 41 along with the blocking pipe 4, the water-facing side of the inclined plate 42 faces the water seepage hole 14 aligned with the avoiding hole 41. When the drainage system runs for a long time and part of the water seepage holes 14 are blocked, and the water injection pump 31 is started to back flush the water seepage pipe 1, along with the high-speed rotation of the blocking pipe 4 in the inner cavity of the water seepage pipe 1, part of water generates a larger centrifugal acting force under the action of the inclined plate 42, so that the impact force of the water pressure on the water seepage holes 14 is increased, and the back flush effect of the water injection pump 31 on the water seepage pipe 1 is favorably improved.
In this embodiment, the periphery of the bottom of the water seepage pipe 1 is covered with a water seepage net (not shown in the figure) at the position corresponding to the water seepage hole 14, and the water seepage net can intercept partial soil and reduce the water and soil loss caused in the drainage process.
The implementation principle is as follows: when extracting the moisture in the soil on the side wall of the foundation pit 100 and the bottom of the foundation pit 100, firstly, the driving assembly 5 drives the blocking pipe 4 to rotate to a certain angle in the inner cavity of the water seepage pipe 1, so that the avoiding hole 41 is aligned with part of the water seepage holes 14 at the position with the required height, and then the water suction pump 21 is started to enable the inner cavity of the water seepage pipe 1 to generate negative pressure, so that the moisture in the soil at the position with the required height can be sucked into the inner cavity of the water seepage pipe 1; when moisture in soil at other height positions needs to be sucked and discharged, the driving assembly 5 can drive the blocking pipe 4 to rotate at a certain angle in the inner cavity of the water seepage pipe 1, so that the avoiding hole 41 is aligned with part of the water seepage holes 14 at other height positions.
When the drainage system runs for a long time and part of the water seepage holes 14 are blocked, the water injection pump 31 is started to inject water into the inner cavity of the water seepage pipe 1, then the driving assembly 5 drives the blocking pipe 4 to rotate at a high speed in the inner cavity of the water seepage pipe 1, so that a plurality of groups of water seepage holes 14 are sequentially aligned with the avoidance holes 41, the water seepage holes 14 aligned with the avoidance holes 41 can be impacted by water pressure, and the back flushing effect of the water injection pump 31 on the water seepage pipe 1 is realized; in addition, because the blocking pipe 4 rotates at a high speed in the inner cavity of the water seepage pipe 1, the water pressure impact force applied to each group of water seepage holes 14 changes constantly, and the back washing effect of the water injection pump 31 on the water seepage pipe 1 is improved.
The application also discloses a using method of the drainage system of the building construction site, which comprises the following steps:
s1, controlling the first electromagnetic valve 22 to be opened and controlling the second electromagnetic valve 32 to be closed;
s2, driving the plugging pipe 4 to rotate to a certain angle through the driving assembly 5, so that the avoiding hole 41 is aligned with part of the water seepage holes 14 at the required height position;
s3, starting the water suction pump 21 to enable the inner cavity of the water seepage pipe 1 to generate negative pressure, so that moisture in soil at a required height position can be sucked into the inner cavity of the water seepage pipe 1 and pumped out by the water suction pump 21;
and S4, driving the blocking pipe 4 to rotate by a certain angle through the driving assembly 5, so that the avoiding holes 41 are aligned with part of the water seepage holes 14 at other height positions, and sucking water in the soil at other height positions into the inner cavity of the water seepage pipe 1 and pumping out the water by the water suction pump 21.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (7)

1. The utility model provides a building construction site drainage system, includes excavation (100) on the construction site, its characterized in that: a plurality of water seepage pipes (1) wound around a foundation pit (100) are inserted in the construction site, the bottom ends of the water seepage pipes (1) are communicated with a preset water suction pump (21) in the construction site through preset water suction pipes (2), and the periphery of the top of each water seepage pipe (1) is communicated with a preset water injection pump (31) in the construction site through a preset water injection pipe (3); a plurality of groups of water seepage holes (14) which are arranged at intervals are formed in the periphery of the bottom of the water seepage pipe (1), and the plurality of groups of water seepage holes (14) are obliquely and spirally arranged on the periphery of the water seepage pipe (1) along the length direction of the water seepage pipe (1); the inner cavity of the water seepage pipe (1) is rotatably embedded with a blocking pipe (4) which is attached to the inner wall of the water seepage pipe (1), the inner cavity of the water seepage pipe (1) is provided with a driving component (5) for driving the blocking pipe (4) to rotate, the blocking pipe (4) is provided with an avoiding hole (41) which extends along the length direction of the blocking pipe, and the avoiding hole (41) can be aligned with any group of water seepage holes (14) in the process of rotating along with the blocking pipe (4); the driving assembly (5) comprises a driving motor (51), a driving shaft (52) and a plurality of fan blades (53) which are uniformly distributed along the driving shaft (52), wherein the driving motor (51) is positioned above the position where the water seepage pipe (1) is communicated with the water injection pipe (3), one end of the driving shaft (52) is connected with an output shaft of the driving motor (51), the other end of the driving shaft is connected with a connecting frame (54) which is preset in the center of the blocking pipe (4), each fan blade (53) is obliquely and spirally arranged on the periphery of the driving shaft (52) along the length direction of the driving shaft (52), and the water injection pipe (3) is tangential to the inner wall of the water seepage pipe (1) and forms water flow impact on one side of the fan blade (53); the driving shaft (52) comprises two connecting shafts (521), a spline shaft (522) and a spline housing (523) which are coaxially arranged, wherein one ends, close to each other, of the two connecting shafts (521) are fixedly provided with the spline shaft (522) and the spline housing (523) respectively, the spline shaft (522) is embedded in the spline housing (523) in a sliding mode, and the end portion, embedded in the spline housing (523), of the spline shaft (522) is connected with an elastic piece (524) preset in the spline housing (523) in a sliding mode.
2. The drainage system for a building construction site according to claim 1, wherein: the bottom of infiltration pipe (1) inner chamber is equipped with a plurality of along infiltration pipe (1) center evenly distributed's ball (6), and every ball (6) all contact with shutoff pipe (4) bottom.
3. The drainage system for a building construction site according to claim 1, wherein: dodge hole (41) one side and be equipped with slope swash plate (42) that extend inwards dodge hole (41) along with shutoff pipe (4) pivoted in-process, swash plate (42) upstream face one side orientation and dodge infiltration hole (14) that hole (41) are aligned.
4. The drainage system for a building construction site according to claim 1, wherein: the periphery of the bottom of the water seepage pipe (1) is covered with a water seepage net at the position corresponding to the water seepage holes (14).
5. The drainage system for a building construction site according to claim 1, wherein: the water seepage pipe (1) comprises a pipe body (11) with an upward opening and a pipe cover (12) with a downward opening, wherein the pipe cover (12) is used for installing a driving motor (51), the top of the pipe body (11) is connected with the bottom of the pipe cover (12) through threads, and a sealing ring (13) is arranged between the top of the pipe body (11) and the bottom of the pipe cover (12).
6. The drainage system for a building construction site according to claim 1, wherein: the water pumping pipe (2) and the water injection pipe (3) are respectively provided with a first electromagnetic valve (22) and a second electromagnetic valve (32).
7. A method of using a building construction site drainage system, comprising the building construction site drainage system of any one of claims 1-6, wherein: further comprising the steps of:
s1, controlling the first electromagnetic valve (22) to be opened and controlling the second electromagnetic valve (32) to be closed;
s2, driving the blocking pipe (4) to rotate to a certain angle through the driving assembly (5), and aligning the avoidance hole (41) with a part of the water seepage hole (14) at the position with the required height;
s3, starting the water suction pump (21) to enable the inner cavity of the water seepage pipe (1) to generate negative pressure, so that moisture in soil at a required height position can be sucked into the inner cavity of the water seepage pipe (1) and pumped out by the water suction pump (21);
s4, the driving assembly (5) drives the blocking pipe (4) to rotate for a certain angle, so that the avoiding hole (41) is aligned with part of the water seepage holes (14) at other height positions, and water in soil at other height positions is sucked into the inner cavity of the water seepage pipe (1) and pumped out by the water pump (21).
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CN114016529A (en) * 2021-11-25 2022-02-08 中铁十四局集团大盾构工程有限公司 Precipitation drainage device for tunnel foundation pit

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