CN113882412B - Pre-sealed raft plate post-cast strip dewatering device and dewatering method thereof - Google Patents

Abstract

The invention relates to the technical field of building construction, in particular to a pre-sealed raft plate post-cast strip dewatering device which comprises an insertion pipe body, an upper connecting pipe, a top butt joint seat and a central unit pipe. The method comprises the steps of digging a pit, assembling equipment, pumping water, pouring after dismantling and the like. The beneficial effects are that: the precipitation device can be quickly assembled in a modular assembly mode according to the actual precipitation requirement of a post-cast strip area to form the precipitation device with the corresponding depth, so that the use adaptability is higher, and the time for customizing the pipeline with the corresponding length can be saved; this precipitation device mainly adopts the drainage material that is located between outer tube and the direction cell pipe to carry out rivers and filters, has replaced the grit that traditional filtration was used to can the effectual required degree of depth of digging pit of reduction, reduce the construction degree of difficulty and reduce the engineering time: the precipitation device can be detached after being used, so that the corresponding detached part is recycled, resources can be effectively saved, and construction material waste is reduced.

Description

Pre-sealed raft plate post-cast strip dewatering device and dewatering method thereof

Technical Field

The invention relates to the technical field of building construction, in particular to a pre-sealed raft plate post-cast strip dewatering device and a dewatering method thereof.

Background

In the building construction process, basement raft board post-cast strip is when needs seal, and peripheral dewatering device has all been removed or became invalid usually, and consequently abundant groundwater in the soil layer will gush to post-cast strip region to cause soil layer infiltration in this region easily, can't carry out the operation of pouring in post-cast strip, consequently need set up dewatering device again and carry out precipitation.

The existing precipitation method mainly adopts a tube well for precipitation, firstly a pit with a larger diameter is dug, a pipeline is placed along the pit wall, then a thin tube for pumping water is placed in the center of the tube well, and sand for filtering sediment in water is placed between the tube well and the thin tube. However, this construction method has a great disadvantage that the diameter of the excavated pit is required to be large and the construction amount is large when the pipe well is firstly arranged and gravel is filled in the pipe well, and the depths of the excavated pits are required to be different due to different water contents in soil layers, so that pipelines with different lengths are required to be customized, and the customized pipelines are difficult to be reused.

Disclosure of Invention

The invention aims to provide a pre-sealed raft post-cast strip dewatering device and a dewatering method thereof, and aims to solve the problems that the existing dewatering device in the background technology is inconvenient to use, poor in universality and the like.

In order to achieve the purpose, the invention provides the following technical scheme: a pre-sealed raft plate post-cast strip precipitation device comprises an insertion pipe body, an upper connecting pipe, a top butt joint seat and a central unit pipe, wherein the insertion pipe body comprises an installation butt joint pipe, the bottom of the installation butt joint pipe is provided with at least one guide unit pipe in series connection through threads, and the guide unit pipe is provided with at least two circles of inner holes for collecting water flow from top to bottom;

the outer side of each guide unit pipe is sleeved and fixedly provided with an outer sleeve, the outer sleeve is integrally formed with an annular groove for filling a water filtering material on the outer side corresponding to each circle of inner hole, and the annular groove is provided with an outer hole for water inlet;

the water suction pump is characterized in that the top of the installation butt joint pipe is fixedly installed with the upper connecting pipe through a fixed screw button, the interior of the upper connecting pipe is fixedly sleeved with the top butt joint seat, at least one central unit pipe is installed at the bottom of the top butt joint seat in series, the central unit pipe comprises an inner pipe support, butt joint inner pipes are fixedly installed in the inner pipe support, the butt joint inner pipes and the top butt joint seat are installed in a splicing mode, and the top butt joint seat is connected with a water inlet of an external water suction pump through a water hose or a water pipe.

Preferably, the bottommost part of the insertion pipe body is sealed at the lower end of the guide unit pipe through a base in threaded connection, and a guide limiting seat is fixed on the outer side of the base through a bolt.

Preferably, install through bolt spiro union or install through buckle chucking between the inner tube support and the top butt joint seat between the inner tube support, and install through bolt spiro union or buckle chucking between top butt joint seat and the last connecting pipe.

Preferably, the installation is for the infundibulate to the pipe, and the top has a pair of handle through bolt fixed mounting to the upper end of butt joint seat.

Preferably, be located the bottommost the bottom of center unit pipe is provided with stirring interfacing apparatus, and stirring interfacing apparatus include with center unit socle portion through bolt fixed mounting's link, and the bottom fixed mounting of link has driving motor, driving motor's output drive has the center tube, and sets up the inside inlet opening of intercommunication on the center tube, the outer wall of center tube is provided with the paddle with inlet opening staggered arrangement, and the upper end fixed mounting of link has the butt joint platform, the below of butt joint platform is passed through the bearing and is rotated with the center tube and be connected, and the upper end of butt joint platform with be located the butt joint inner tube connection of bottommost, driving motor goes up fixed mounting and has the bottom threading pipe, and fixed mounting has the top threading pipe on the butt joint seat of top, and outside cable pass top threading pipe and bottom threading pipe in proper order and with driving motor fixed mounting.

Preferably, the upper end of the upper connecting pipe is hinged with a sealing cover for sealing the upper connecting pipe, and the sealing cover is integrally formed with a moving lug.

Preferably, the inner hole and the outer hole are both kidney-shaped holes, round holes or rectangular holes, and the guide unit pipe and the outer sleeve pipe are mounted in an adhesive manner.

Preferably, the installation is to all being provided with the chucking device between pipe and the direction unit pipe, between the adjacent direction unit pipe and between direction unit pipe and the base, and the chucking device includes the go-between, the upper end fixed mounting of go-between has the spacer pin, and the inboard fixed mounting of go-between has spacing fixture block, the installation is to the bottom of pipe and direction unit pipe all be provided with the spacer pin fixed engaging lug of grafting cooperation, and the top of direction unit pipe and base seted up with spacing fixture block complex butt joint groove.

A precipitation method of a pre-sealed raft plate post-cast strip precipitation device comprises the following steps:

s1, digging a pit: digging pits with specified depth at corresponding positions according to the precipitation requirement in the post-cast strip area;

s2, assembling equipment: according to the depth of the pit digging, the guide unit pipes and the outer sleeves are sleeved through corresponding quantity of guide unit pipes and outer sleeves, then the guide unit pipes and the outer sleeves are connected in series at the bottoms of the installation butt joint pipes to form insertion pipe bodies with corresponding lengths, then the insertion pipe bodies are inserted into corresponding pit positions, sand stones capable of filtering water are filled outside the insertion pipe bodies and fixedly inserted into the pipe bodies, then the upper connecting pipes are installed at the upper ends of the installation butt joint pipes, then the central unit pipes with corresponding quantity are installed at the lower ends of the top butt joint seats in series, and then the top butt joint seats are installed inside the upper connecting pipes;

s3, pumping water: connecting an external water pump above the top butt joint seat through a water hose or a water pipe, and then pumping out water penetrating into the pipe body;

s4, pouring after dismantling: when the post-cast strip needs to be poured, and the precipitation is finished in the corresponding area, the precipitation device can be detached, all the insertion pipe bodies can be detached according to the detachment difficulty, or the insertion pipe bodies are left in place, only the rest parts of the insertion pipe bodies are detached, the detached parts can be reused in subsequent construction, and then the corresponding positions are directly poured.

Compared with the prior art, the invention has the beneficial effects that:

1. the rainfall device designed by the invention can be assembled into the rainfall device with the corresponding depth in a modular assembly mode according to the actual rainfall requirement of the post-cast strip area, so that water flow in the corresponding area can be effectively converged and pumped out by adopting an external water pump, the adaptability is higher, and the time for customizing the pipeline with the corresponding length can be saved;

2. the water-filtering material positioned between the outer sleeve and the guide unit pipe is mainly adopted for water flow filtration of the precipitation device designed by the invention, and the traditional sandstone for filtering water is arranged outside the inserted pipe body, so that the inner diameter of the guide unit pipe can be effectively reduced, the filter sandstone is not arranged, or a small amount of sandstone which can only be fixedly inserted into the pipe body is arranged, the depth of a pit to be dug can be effectively reduced, the construction difficulty is reduced, and the construction time is shortened.

3. The precipitation device designed by the invention can be dismantled after being used, so that the corresponding dismantled part can be recycled, resources can be effectively saved, and the waste of construction materials can be reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the structure of the present invention;

FIG. 3 is a schematic view showing the connection of an upper connection pipe and a central unit pipe according to the present invention

FIG. 4 is a schematic view of the installation of the guiding unit pipes and the stirring docking device of the present invention;

FIG. 5 is a schematic structural diagram of the stirring docking device of the present invention;

FIG. 6 is a schematic view of the clamping mechanism of the present invention;

FIG. 7 is a schematic structural view of a base according to the present invention;

fig. 8 is a schematic view of the mounting of the clamping device and the base of the present invention.

In the figure: 1. a central unit tube; 101. butting the inner pipes; 102. an inner tube support; 2. a clamping device; 201. a spacing pin; 202. a connecting ring; 203. a limiting clamping block; 3. a base; 4. a guiding limiting seat; 5. a guide unit pipe; 6. an outer bore; 7. a stirring docking device; 701. a docking station; 702. a water inlet hole; 703. a paddle; 704. a central tube; 705. a connecting frame; 706. a drive motor; 8. a top docking station; 9. fixing the screw button; 10. a butt joint groove; 11. an outer sleeve; 12. an annular groove; 13. an inner bore; 14. connecting lugs; 15. a bottom threading tube; 16. installing a butt joint pipe; 17. an upper spacer; 18. a limiting post; 19. hammering the seat; 20. moving the lug; 21. a sealing cover; 22. an upper connecting pipe; 23. a handle; 24. a top threading pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art without creative efforts based on the technical solutions of the present invention belong to the protection scope of the present invention.

Referring to fig. 1 to 8, the present invention provides a technical solution: a pre-sealed raft plate post-cast strip precipitation device comprises an insertion pipe body, an upper connecting pipe 22, a top butt joint seat 8 and a central unit pipe 1, wherein the insertion pipe body comprises an installation butt joint pipe 16, at least one guide unit pipe 5 is installed at the bottom of the installation butt joint pipe 16 in series through threads, the installation butt joint pipe 16 is funnel-shaped, in order to reduce the diameter of a pit to be dug, the inner diameter of the guide unit pipe 5 is smaller than that of the upper connecting pipe 22 and is far smaller than that of the existing well pipe, the inner diameter of the preferred guide unit pipe 5 is five centimeters to fifteen centimeters, the upper connecting pipe 22 needs to be connected with a water belt and needs to have a larger inner diameter for the installation operation of the top butt joint seat 8, so that the guide unit pipe 5 and the upper connecting pipe 22 need to be connected with the installation butt joint pipe 16 with variable diameters for transition, a pair of handles 23 are fixedly installed at the upper end of the top butt joint seat 8 through bolts, and at least two circles of inner holes 13 for water flow collection are formed in the upper end of the guide unit pipe 5;

referring to fig. 2, 3 and 4, a sealing cover 21 for sealing the upper connecting pipe 22 is hinged to the upper end of the upper connecting pipe 22, a moving lug 20 is integrally formed on the sealing cover 21, an outer sleeve 11 is sleeved and fixedly mounted on the outer side of the guiding unit pipe 5, an annular groove 12 for filling a water filtering material is integrally formed on the outer side of each circle of inner hole 13 of the outer sleeve 11, the water filtering material can be quartz sand, activated carbon, ion exchange resin and the like, an outer hole 6 for water inlet is formed in the annular groove 12, the inner hole 13 and the outer hole 6 are both kidney-shaped holes, round holes or rectangular holes, and the guiding unit pipe 5 and the outer sleeve 11 are adhesively mounted;

referring to fig. 2 and 4, a base 3 inserted into the bottom of a pipe body and connected by a thread seals the lower end of a guide unit pipe 5, a guide limiting seat 4 is fixed on the outer side of the base 3 by a bolt, a clamping device 2 is arranged between an installation butt joint pipe 16 and the guide unit pipe 5, between adjacent guide unit pipes 5 and between the guide unit pipe 5 and the base 3, the clamping device 2 comprises a connecting ring 202, a limiting pin 201 is fixedly installed on the upper end of the connecting ring 202, a limiting block 203 is fixedly installed on the inner side of the connecting ring 202, the connecting ring 202 is a soft plastic ring or a metal ring, two ends of the connecting ring are installed or bonded by mutual clamping, connecting lugs 14 fixed by inserting and matching with the limiting pin 201 are arranged at the bottom of the installation butt joint pipe 16 and the guide unit pipe 5, connecting grooves 10 matched with the limiting block 203 are formed at the top of the guide unit pipe 5 and the base 3, the limiting pins 201 and the connecting lugs 14 are inserted and connected by pressing the limiting block 203 into the corresponding connecting grooves, two ends of the connecting ring 202 can be installed, the clamping device 2 can be used for placing two connected parts by a relative rotation, and two connected objects are still connected in advance by a thread;

referring to fig. 2 and 5, a stirring and docking device 7 is disposed at the bottom of the bottommost central unit tube 1, the stirring and docking device 7 includes a connecting frame 705 fixedly mounted to the bottom of the central unit tube 1 through a bolt, a driving motor 706 is fixedly mounted to the bottom of the connecting frame 705, a central tube 704 is driven by an output end of the driving motor 706, a water inlet hole 702 communicating with the inside of the central tube 704 is formed in the central tube 704, blades 703 arranged in a staggered manner with the water inlet hole 702 are disposed on an outer wall of the central tube 704, a docking station 701 is fixedly mounted to an upper end of the connecting frame 705, a lower portion of the docking station 701 is rotatably connected to the central tube 704 through a bearing, an upper end of the docking station 701 is connected to the bottommost docking inner tube 101, a bottom threading tube 15 is fixedly mounted to the driving motor 706, a top threading tube 24 is fixedly mounted to the top docking station 8, an external cable sequentially passes through the top threading tube 24 and the bottom threading tube 15 and is fixedly mounted to the driving motor 706, and the bottom threading tube 15 can effectively prevent the cable from being wound around the central tube 704;

referring to fig. 2 and 3, the top of the installation butt joint pipe 16 is fixedly installed with the upper connection pipe 22 through a fixing screw button 9, the inside of the upper connection pipe 22 is fixedly sleeved with the top butt joint seat 8, at least one central unit pipe 1 is installed in series at the bottom of the top butt joint seat 8, the central unit pipe 1 comprises an inner pipe support 102, butt joint inner pipes 101 are fixedly installed in the inner pipe support 102, the inner pipe supports 102 and the top butt joint seat 8 are installed in a screwed mode through bolts or clamped through buckles, the top butt joint seat 8 and the upper connection pipe 22 are installed in a screwed mode through bolts or clamped through buckles, the butt joint inner pipes 101 and the top butt joint seat 8 are installed in an inserted mode, and the top butt joint seat 8 is connected with the water inlet of an external water pump through a water hose or a water pipe.

A precipitation method of a pre-sealed raft plate post-cast strip precipitation device comprises the following steps:

s1, digging a pit: digging pits with specified depth at corresponding positions according to the precipitation requirement in the post-cast strip area;

s2, assembling equipment: according to the depth of the pit, the guide unit pipes 5 and the outer sleeves 11 are sleeved through corresponding quantity, then the guide unit pipes are connected in series at the bottom of the installation butt joint pipe 16 to form an insertion pipe body with corresponding length, then the insertion pipe body is inserted into a corresponding pit position, sand stone capable of filtering water is filled outside the insertion pipe body and fixedly inserted into the pipe body, then the upper connecting pipe 22 is installed at the upper end of the installation butt joint pipe 16, then the central unit pipes 1 with corresponding quantity are installed in series at the lower end of the top butt joint seat 8, and then the top butt joint seat 8 is installed inside the upper connecting pipe 22;

s3, pumping water: an external water suction pump is connected above the top butt joint seat 8 through a water hose or a water pipe, and then water penetrating into the pipe body is pumped out;

s4, pouring after dismantling: when the post-cast strip needs to be poured, and precipitation is finished in the corresponding area, the precipitation device can be detached, when the precipitation device is detached, all the precipitation device can be detached or the inserted pipe body is left in place and only the rest part of the precipitation device is detached according to the detaching difficulty, the detached part can be reused in subsequent construction, and then the post-cast strip can be directly poured in the corresponding position.

The working principle is as follows: when the device is used, firstly, pits with corresponding depths are dug in corresponding areas of a post-cast strip according to the requirements of precipitation, then corresponding guide unit tubes 5 are installed below an installation butt joint tube 16 in series according to the depths of the dug pits, then outer sleeves 11 are sleeved on the unit tubes 5, corresponding water filtering materials are placed in annular grooves 12 of the outer sleeves 11 to form insertion tube bodies, then a base 3 is installed at the bottoms of the insertion tube bodies to form sealing, the insertion tube bodies are inserted into corresponding pits, the guide limiting seats 4 on the base 3 can effectively push redundant soil on the inner walls of the pits into the bottoms of the pits in the insertion process, accordingly, subsequently filled sand stones for filtering can well fall to the bottoms of the pits, the guide limiting seats 4 can be installed according to the use requirements, when the inner walls of the pits are smooth and the insertion tube bodies need to be integrally removed after the use, the guide limiting seats 4 can be installed, after the insertion tube bodies are inserted, water filtering sand stones which can be primarily filled between the outer walls of the insertion tube bodies and the inner walls of the pits can be filled, and play a role in fixing the insertion tube bodies;

then, an upper connecting pipe 22 is installed on the installation butt joint pipe 16, then, a corresponding number of central unit pipes 1 are installed in series at the bottom of the top butt joint seat 8, a stirring butt joint device 7 is fixedly installed at the bottom of the central unit pipe 1 located at the lowest position, then, the top butt joint seat 8 and the upper connecting pipe 22 are fixed, the stirring butt joint device 7 can be inserted into the bottom of the insertion pipe body, then, a sealing cover 21 is closed to wait for water flow to be converged into the insertion pipe body, the water flow is firstly subjected to primary filtration through sand stones located outside the insertion pipe body, and then is subjected to secondary filtration through a water filtering material filled in the annular groove 12;

when the water flow in the outer sleeve 11 is not convenient to be placed between the inner wall of a pit and the inserting pipe body, the sand can be effectively prevented from being taken away by the water flow, the ground sedimentation caused by sand flow loss can be further eliminated when the water flow in the precipitation process is large, on the other hand, when the diameter of the pit excavation is small, the sand cannot be directly placed between the inner wall of the pit and the inserting pipe body, and the filtering performance of the sand flow loss outer sleeve 11 can be further eliminated, so that the filtering efficiency of the filtering material is better than that of the sand flow in the construction process, and the filtering efficiency of the filtering material is improved;

when the post-cast strip needs to be poured, and after the water flow in the corresponding inserting pipe body is completely extracted, the water lowering device can be detached, when the water lowering device is detached, all the inserting pipe bodies can be detached or the inserting pipe bodies are left in situ to only detach other parts according to detaching difficulty, when the pit position is deep, and secondary excavation is difficult, the inserting pipe bodies are kept in the pit position, and when the pit position is shallow, all the inserting pipe bodies are dug out, the detached and recovered parts can be reused in subsequent construction, and then the corresponding positions can be directly poured.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a water lowering device in post-cast strip of pre-sealed raft board which characterized in that: the water flow collecting device comprises an inserting pipe body, an upper connecting pipe (22), a top butt joint seat (8) and a central unit pipe (1), wherein the inserting pipe body comprises an installation butt joint pipe (16), the bottom of the installation butt joint pipe (16) is provided with at least one guide unit pipe (5) in series connection through threads, and the guide unit pipe (5) is provided with at least two circles of inner holes (13) for collecting water flow from top to bottom;

an outer sleeve (11) is sleeved and fixedly installed on the outer side of the guide unit pipe (5), an annular groove (12) used for filling a water filtering material is integrally formed in the outer side of the outer sleeve (11) corresponding to each circle of inner hole (13), and an outer hole (6) used for water inflow is formed in the annular groove (12);

the water pump is characterized in that the top of the installation butt joint pipe (16) is fixedly installed with an upper connecting pipe (22) through a fixed screw button (9), the interior of the upper connecting pipe (22) is fixedly sleeved with a top butt joint seat (8), at least one central unit pipe (1) is installed at the bottom of the top butt joint seat (8) in series, the central unit pipe (1) comprises an inner pipe support (102), a butt joint inner pipe (101) is fixedly installed in the inner pipe support (102), the butt joint inner pipes (101) and the top butt joint seat (8) are installed in a splicing mode, and the top butt joint seat (8) is connected with a water inlet of an external water suction pump through a water hose or a water pipe.

2. The pre-sealed raft plate post-cast strip dewatering device of claim 1, wherein: the bottommost of the inserted pipe body seals the lower end of the guide unit pipe (5) through a base (3) in threaded connection, and the outer side of the base (3) is fixed with a guide limiting seat (4) through a bolt.

3. The pre-sealed raft plate post-cast strip dewatering device of claim 1, wherein: the inner pipe supports (102) and the top butt joint seat (8) are installed in a threaded mode through bolts or in a clamping mode through buckles, and the top butt joint seat (8) and the upper connecting pipe (22) are installed in a threaded mode through bolts or in a clamping mode through buckles.

4. The pre-sealed raft board post-cast strip dewatering device according to claim 1, wherein: the installation is to connecting pipe (16) for the infundibulate, and the top is to the upper end of seat (8) and pass through bolt fixed mounting and have a pair of handle (23).

5. The pre-sealed raft board post-cast strip dewatering device according to claim 1, wherein: be located bottommost the bottom of center cell pipe (1) is provided with stirring interfacing apparatus (7), and stirring interfacing apparatus (7) include with center cell pipe (1) bottom link (705) through bolt fixed mounting, and the bottom fixed mounting of link (705) has driving motor (706), the output drive of driving motor (706) has center tube (704), and sets up inside inlet opening (702) of intercommunication on center tube (704), the outer wall of center tube (704) is provided with paddle (703) with inlet opening (702) staggered arrangement, and the upper end fixed mounting of link (705) has butt joint platform (701), the below of butt joint platform (701) is passed through the bearing and is rotated with center tube (704) and is connected, and the upper end of butt joint platform (701) is connected with butt joint inner tube (101) that are located bottommost, fixed mounting has bottom threading pipe (15) on driving motor (706), and fixed mounting has top threading pipe (24) on top butt joint seat (8), and outside cable passes top pipe (24) and bottom pipe (15) in proper order and with driving motor (706) fixed mounting.

6. The pre-sealed raft plate post-cast strip dewatering device of claim 1, wherein: the upper end of the upper connecting pipe (22) is hinged with a sealing cover (21) used for sealing the upper connecting pipe (22), and the sealing cover (21) is integrally formed with a moving lug (20).

7. The pre-sealed raft plate post-cast strip dewatering device of claim 1, wherein: the bottom of the upper connecting pipe (22) is integrally formed with an upper isolation sheet (17), the outer side of the upper isolation sheet (17) is fixed through a limiting column (18) inserted into soil, and the top of the limiting column (18) is provided with a hammering seat (19).

8. The pre-sealed raft plate post-cast strip dewatering device of claim 1, wherein: the inner hole (13) and the outer hole (6) are both waist-shaped holes, round holes or rectangular holes, and the guide unit pipes (5) and the outer sleeve pipes (11) are arranged in an adhesive mode.

9. The pre-sealed raft plate post-cast strip dewatering device of claim 2, wherein: installation is to all being provided with chucking device (2) between pipe (16) and the direction unit pipe (5), between adjacent direction unit pipe (5) and between direction unit pipe (5) and base (3), and chucking device (2) including go-between (202), the upper end fixed mounting of go-between (202) has spacer pin (201), and the inboard fixed mounting of go-between (202) has spacing fixture block (203), the installation is to the bottom of pipe (16) and direction unit pipe (5) all be provided with spacer pin (201) fixed engaging lug (14) of grafting cooperation, and the top of direction unit pipe (5) and base (3) seted up with spacing fixture block (203) complex butt-joint groove (10).

10. A method of dewatering pre-sealed raft board post-cast strip dewatering apparatus as claimed in claim 1, comprising the steps of:

s1, digging a pit: digging pits with specified depth at corresponding positions according to the precipitation requirement in the post-cast strip area;

s2, assembling equipment: according to the depth of the pit digging, the guide unit pipes (5) and the outer sleeves (11) are sleeved through corresponding numbers, then the guide unit pipes are connected in series at the bottoms of the installation butt joint pipes (16) to form insertion pipe bodies with corresponding lengths, then the insertion pipe bodies are inserted into corresponding pit positions, sand capable of filtering water is filled outside the insertion pipe bodies and fixedly inserted into the pipe bodies, then the upper connecting pipes (22) are installed at the upper ends of the installation butt joint pipes (16), then the central unit pipes (1) with corresponding numbers are installed in series at the lower ends of the top butt joint seats (8), and then the top butt joint seats (8) are installed inside the upper connecting pipes (22);

s3, pumping water: an external water pump is connected above the top butt joint seat (8) through a water hose or a water pipe, and then water penetrating into the pipe body is pumped out;

s4, pouring after dismantling: when the post-cast strip needs to be poured, and the precipitation is finished in the corresponding area, the precipitation device can be detached, all the insertion pipe bodies can be detached according to the detachment difficulty, or the insertion pipe bodies are left in place, only the rest parts of the insertion pipe bodies are detached, the detached parts can be reused in subsequent construction, and then the corresponding positions are directly poured.

Images