CN213741156U

CN213741156U - Deep foundation pit drainage structure

Info

Publication number: CN213741156U
Application number: CN202021498784.2U
Authority: CN
Inventors: 刘作麒; 赵治膳; 钟钐杉
Original assignee: Wenzhou Jingjiu Foundation Engineering Co ltd
Current assignee: Wenzhou Jingjiu Foundation Engineering Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-07-20
Anticipated expiration: 2030-07-23

Abstract

The application relates to a deep foundation pit drainage structure, which relates to the field of drainage structures and comprises a continuous wall and a drain pipe, wherein a drainage ditch is arranged on the foundation pit, a drainage pump for pumping accumulated water in the drainage ditch to the outside of the foundation pit is arranged in the drainage ditch, the drain pipe comprises a water collecting part and a connecting part, one end of the connecting part, which is close to the drainage ditch, extends into the drainage ditch, one end of the water collecting part is fixedly connected with the connecting part, the water collecting part is mutually communicated with the connecting part, a drainage hole for inserting the water collecting part is arranged on the continuous wall, one end of the water collecting part, which is close to the connecting part, extends out of the continuous wall, one side of the water collecting part, which is close to the connecting part, is provided with a filter screen matched with the pipe diameter of the water collecting part, one side of the water collecting part, which is close to the filter screen, a cover plate for covering the opening is arranged on the water collecting part, silt flows out of the drainage pipe from the opening part, then the filter screen is cleaned so that the filter screen is not easy to block, the structure is simple and convenient for manual operation, no motor drive is needed, and the effects of energy conservation and environmental protection are achieved.

Description

Deep foundation pit drainage structure

Technical Field

The application relates to the field of drainage structures, in particular to a deep foundation pit drainage structure.

Background

In the excavation process of the foundation pit, drainage of the foundation pit is generally completed by adopting a sump dewatering and well point dewatering method, but the side wall also bears larger lateral pressure when the underground water level is higher than the bottom surface of the foundation pit, so that collapse of the side wall of the foundation pit is easily caused.

Chinese patent that publication number is CN207538059U discloses a deep basal pit drainage structures includes the diaphragm wall, the wash port has been seted up on the diaphragm wall in succession, the escape canal has been seted up with the position of diaphragm wall contact to foundation ditch bottom, be provided with in the escape canal and take out the drain pump outside the foundation ditch with ponding in the escape canal, the utility model discloses have and set up the wash port, receive the influence of space water pressure, groundwater in the soil of foundation ditch rear can get into the drain pipe through the wash port and then collect in getting into the escape canal, start the drain pump and can discharge the rainwater of collecting in the escape canal outside the foundation ditch in order to reduce the outer groundwater level of diaphragm wall for the effect that the lateral pressure that the diaphragm wall received reduces.

To the correlation technique among the aforesaid, the inventor thinks there is this filter screen to set up in the drain pipe and keeps away from the one end in escape canal, along with groundwater constantly passes through the filter screen for a large amount of silt are piled up in filter screen department, thereby lead to the filter screen to block up, hardly clear up the defect of maintenance after the filter screen blocks up.

SUMMERY OF THE UTILITY MODEL

In order to solve a large amount of silt and pile up in filter screen department to lead to the filter screen to block up, hardly clear up the problem of maintenance after the filter screen blocks up, this application provides a deep basal pit drainage structures.

The application provides a deep basal pit drainage structures adopts following technical scheme:

the utility model provides a deep basal pit drainage structures, includes diaphragm wall and drain pipe, the escape canal has been seted up on the foundation ditch, be provided with in the escape canal and take out the outer drain pump of foundation ditch with ponding in the escape canal, the drain pipe includes water collection portion and connecting portion, connecting portion are close to in the one end of escape canal gos deep into the escape canal, the one end and the connecting portion fixed connection of water collection portion, water collection portion and connecting portion communicate mutually, be equipped with on the diaphragm wall and supply water collection portion male wash port, the one end that water collection portion is close to connecting portion stretches out outside the diaphragm wall, one side that water collection portion is close to connecting portion is equipped with the filter screen with water collection portion pipe diameter adaptation, one side that water collection portion is close to the filter screen is equipped with the opening, the downside of water collection portion is located to the opening, be equipped with the apron that covers the open-ended on the water collection portion.

Through adopting the above technical scheme, moisture in the foundation ditch gets into in the connecting portion from the water collection portion, moisture mixes silt and is stayed in the water collection portion by the filter screen filtration in getting into the water collection portion, when silt piles up too much and blocks up the filter screen, make the silt that blocks up filter screen department flow out the drain pipe from the opening part through opening the apron, then the clearance filter screen makes the difficult jam of filter screen, moreover, the steam generator is simple in structure, manual operation, need not any motor drive, and the silt of clearance can be collected in the foundation ditch non-staining external, energy-concerving and environment-protective.

Preferably, the water collecting part is equipped with two strips that slide on being close to the open-ended lateral wall, two the strip that slides is relative setting, the strip that slides inlays with one side that the water collecting part cooperation was formed with the confession apron and establishes the groove that slides, the groove that slides is arc setting.

Through adopting above-mentioned technical scheme, the apron slides and connects in the inslot that slides for the apron need not to take to open and close the opening on the drain pipe, and convenience of customers clears up the silt of jam, simple structure, and it is convenient to implement.

Preferably, the outer side wall of the water collecting part close to the opening is provided with a locking hole, the locking hole is in threaded connection with a screw, and the cover plate is provided with a through hole for the screw to penetrate through.

Through adopting above-mentioned technical scheme, when apron lid closed the opening, screw threaded connection was in the locking hole for the apron is difficult to slide in the inslot that slides, makes the interior silt of drain pipe just can follow the opening part and flow when needs mediation drain pipe, has improved the apron and has covered the open-ended practicality.

Preferably, a handle is fixedly connected to one side of the cover plate, which is far away from the opening.

Through adopting above-mentioned technical scheme, the area of gripping of apron has been increased in the setting of handle, and convenience of customers slides the apron, has improved the efficiency of sliding of apron.

Preferably, a sealing gasket is arranged on the outer side wall, close to the opening, of the water collecting part, and the sealing gasket is abutted to the cover plate.

Through adopting above-mentioned technical scheme, when apron lid closed the opening, sealed pad and apron butt for silt and groundwater are difficult for flowing from apron and open-ended inside wall clearance, have improved the leakproofness of water collection portion.

Preferably, an extension pipe is integrally arranged at one end, close to the drain hole, of the water collecting part, the extension pipe extends into soil of the foundation pit, the extension pipe is communicated with the water collecting part, a plurality of water through holes are formed in the outer side wall of the extension pipe, and one end, far away from the water collecting part, of the extension pipe is closed.

Through adopting above-mentioned technical scheme, the area of contact of extension pipe and foundation ditch has been increased in the setting of extension pipe for in groundwater in the foundation ditch of keeping away from the diaphragm wall also can flow into the drainage pipe through the extension pipe, increased the efficiency in the drainage pipe guide rivers flow into the escape canal.

Preferably, the escape canal upside is equipped with the deflector, the upside in escape canal is fitted to the deflector lid, the deflector sets up downwards along the direction slope of water collection portion to connecting portion, connecting portion wear to locate on the deflector.

Through adopting above-mentioned technical scheme, the deflector guide flows into the foundation ditch in the middle of from the silt that comes out in the opening for in the difficult inflow escape canal of silt, thereby block up the drain pump and cause the damage to the drain pump, improved the life of drain pump.

Preferably, the guide plate comprises a filter layer and a support layer, the support layer is formed by connecting support rods in a staggered manner, and the filter layer is arranged on the upper side of the support layer and supported by the support layer.

Through adopting above-mentioned technical scheme, the setting of filter layer for in mixed groundwater can pass the inflow escape canal from the filter layer in the silt, the setting of supporting layer makes the filter layer be difficult for receiving the impact of silt and damaging.

In summary, the present application includes at least one of the following beneficial technical effects:

1. silt blocking the filter screen flows out of the drainage pipe from the opening by opening the cover plate, and then the filter screen is cleaned to prevent the filter screen from being blocked easily, so that the drainage pipe is simple in structure, convenient to operate manually, energy-saving and environment-friendly, and does not need any motor drive;

2. when the cover plate covers the opening, the sealing gasket is abutted against the cover plate, so that silt and underground water are not easy to flow out from a gap between the cover plate and the inner side wall of the opening, and the sealing property of the water collecting part is improved;

3. the setting of filter layer for in the groundwater that mixes in the silt can pass the inflow escape canal from the filter layer, the setting of supporting layer makes the filter layer be difficult for receiving the impact of silt and damaging.

Drawings

Fig. 1 is a schematic structural diagram of a deep foundation pit drainage structure according to an embodiment of the present application.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is an exploded view of the drain pipe and the cover plate.

Fig. 4 is an exploded schematic view of the deflector.

Description of reference numerals: 1. a continuous wall; 11. a drainage ditch; 12. a drain hole; 2. a foundation pit; 3. a drain pipe; 31. a water collection part; 311. a filter screen; 312. an opening; 313. a sliding strip; 314. a locking hole; 315. a sliding groove; 316. a gasket; 32. a connecting portion; 33. an extension pipe; 331. water passing holes; 4. draining pump; 5. a cover plate; 51. perforating holes; 52. a screw; 53. a handle; 6. a guide plate; 61. a support layer; 62. a filter layer.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses deep basal pit drainage structures. Referring to fig. 1 and 2, the deep foundation pit drainage structure includes a continuous wall 1 and a drainage pipe 3, a drainage ditch 11 is formed on a foundation pit 2, the drainage ditch 11 is arranged along the inner side wall of the continuous wall 1, a drainage pump 4 for pumping accumulated water in the drainage ditch 11 out of the foundation pit 2 is installed in the drainage ditch 11, the drainage pipe 3 includes a connecting portion 32 and a water collection portion 31, one end of the water collection portion 31 far away from the continuous wall 1 is fixedly connected with the connecting portion 32, the water collection portion 31 is communicated with the connecting portion 32, a plurality of drainage holes 12 for inserting the water collection portion 31 are formed in the continuous wall 1, one end of the connecting portion 32 far away from the water collection portion 31 is embedded in the drainage ditch 11, a filter screen 311 is installed on one side of the water collection portion 31 close to the connecting portion 32, the filter screen 311 is made of draining cotton, the filter screen 311 is matched with the pipe diameter of the drainage pipe 31, so that groundwater passes through the filter screen 311 and enters the connecting portion 32, silt is blocked by the filter screen 311, opening 312 has been seted up to the downside that water collection portion 31 is close to filter screen 311, installs the apron 5 that closes opening 312 on the water collection portion 31 to make things convenient for the user to open apron 5 and clear up silt from opening 312.

One end that connecting pipe 32 was kept away from to water collection portion 31 has extension pipe 33, and extension pipe 33 stretches into in the peripheral soil of foundation ditch 2, and extension pipe 33 and water collection portion 31 communicate each other, set up the water hole 331 that crosses that supplies the groundwater in the foundation ditch 2 soil to get into on the lateral wall of extension pipe 33, have increased the area of contact of water collection portion 31 with soil, have increased the drainage efficiency of water collection portion 31.

Referring to fig. 3, the outer side wall of the water collection portion 31 near the opening 312 is fixedly connected with two sliding strips 313, the two sliding strips 313 are arranged oppositely, the sliding strips 313 are matched with the outer side wall of the water collection portion 31 to form sliding grooves 315, the two sliding grooves 315 are used for the two opposite side walls of the cover plate 5 to be embedded and slid, so that the cover plate 5 is installed on the water collection portion 31 to cover the opening 312, and meanwhile, the cover plate 5 can open and close the opening 312 without being taken away from the water collection portion 31.

The outer side wall of the water collecting part 31 close to the opening 312 is fixedly connected with a sealing gasket 316, one side of the sealing gasket 316 close to the cover plate 5 is abutted against the cover plate 5, and when the cover plate 5 is covered, the sealing gasket 316 seals a gap between the cover plate 5 and the water collecting part 31.

Referring to fig. 3, the water collecting portion 31 is provided with two locking holes 314, the number of the locking holes 314 is preferably two, the two locking holes 314 are oppositely disposed at two sides of the opening 312, the locking holes 314 are connected with screws 52 through internal threads, the cover plate 5 is provided with through holes 51 for the screws 52 to penetrate through, the through holes 51 and the locking holes 314 are in one-to-one correspondence, so that the cover plate 5 is fixed at the opening 312 to cover the opening 312.

A handle 53 is fixedly connected to a side of the cover plate 5 away from the opening 312, so that a user can conveniently hold the cover plate 5.

Referring to fig. 1 and 4, a guide plate 6 is disposed above the drainage ditch 11, the connection pipe 32 is disposed through the guide plate 6, and the guide plate 6 is disposed obliquely downward along a direction from the water collection portion 31 to the connection part 32 to guide the silt flowing out from the opening 312 to flow into the foundation pit 2; the guide plate 6 comprises a filter layer 62 and a support layer 61, the filter layer is made of water filtering cotton, the filter layer 62 is arranged on the upper side of the support layer 61 and is made of stainless steel pipes which are arranged in a staggered mode, and the support layer 61 supports the filter layer 62, so that the filter layer 62 is not prone to damage.

The implementation principle of the deep foundation pit drainage structure in the embodiment of the application is as follows: groundwater gets into extension pipe 33 through water hole 331 in, groundwater flows to on the filter screen 311, silt is filtered by filter screen 311 and stays in wash port 12, when silt blocks up filter screen 311, unscrew screw 52 in locking hole 314, hold handle 53 and promote apron 5 and keep away from opening 312 for silt flows to deflector 6 from opening 312 on, groundwater in the silt gets into escape canal 11 through filter layer 62 in, unnecessary silt receives in guide entering foundation ditch 2 of deflector 6.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above 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

1. The utility model provides a deep basal pit drainage structures, includes diaphragm wall (1) and drain pipe (3), escape canal (11) have been seted up on foundation ditch (2), be provided with in escape canal (11) and take out outer drain pump (4) of foundation ditch (2) with ponding in escape canal (11), its characterized in that: the drain pipe (3) comprises a water collecting part (31) and a connecting part (32), one end of the connecting part (32) close to the drainage ditch (11) extends into the drainage ditch (11), one end of the water collecting part (31) is fixedly connected with the connecting part (32), the water collecting part (31) is communicated with the connecting part (32), the continuous wall (1) is provided with a drain hole (12) for inserting the water collecting part (31), one end of the water collecting part (31) close to the connecting part (32) extends out of the continuous wall (1), a filter screen (311) matched with the pipe diameter of the water collecting part (31) is arranged on one side of the water collecting part (31) close to the connecting part (32), an opening (312) is arranged on one side of the water collecting part (31) close to the filter screen (311), the opening is arranged on the lower side of the water collecting part (31), and a cover plate (5) covering the opening (312) is arranged on the water collecting part (31).

2. The deep foundation pit drainage structure of claim 1, wherein: be equipped with two strips (313) that slide on the lateral wall that catchment portion (31) is close to opening (312), two the strip (313) that slides is relative setting, the strip (313) that slides inlays with one side that catchment portion (31) cooperation is formed with confession apron (5) and establishes the groove (315) that slides, the groove (315) that slides is arc setting.

3. The deep foundation pit drainage structure of claim 2, wherein: the outer side wall, close to the opening, of the water collecting portion (31) is provided with a locking hole (314), the locking hole (314) is connected with a screw (52) in a threaded mode, and the cover plate (5) is provided with a penetrating hole (51) for the screw (52) to penetrate through.

4. The deep foundation pit drainage structure of claim 1, wherein: and a handle (53) is fixedly connected to one side of the cover plate (5) far away from the opening (312).

5. The deep foundation pit drainage structure of claim 1, wherein: the outer side wall of the water collecting part (31) close to the opening (312) is provided with a sealing gasket (316), and the sealing gasket (316) is abutted to the cover plate (5).

6. The deep foundation pit drainage structure of claim 1, wherein: an extension pipe (33) is integrally arranged at one end, close to the drain hole (12), of the water collecting portion (31), the extension pipe (33) extends into soil of the foundation pit (2), the extension pipe (33) is communicated with the water collecting portion (31), a plurality of water through holes (331) are formed in the outer side wall of the extension pipe (33), and one end, far away from the water collecting portion (31), of the extension pipe (33) is closed.

7. The deep foundation pit drainage structure of claim 1, wherein: escape canal (11) upside is equipped with deflector (6), the upside in escape canal (11) is fitted in deflector (6) lid, deflector (6) set up downwards along the direction slope of water collection portion (31) to connecting portion (32), connecting portion (32) are worn to locate on deflector (6).

8. The deep foundation pit drainage structure according to claim 7, wherein: the guide plate (6) comprises a filter layer (62) and a support layer (61), wherein the filter layer (62) is arranged on the upper side of the support layer (61) and is supported by the support layer (61).