CN214497535U

CN214497535U - Deep foundation pit supporting drainage structure

Info

Publication number: CN214497535U
Application number: CN202120269855.XU
Authority: CN
Inventors: 王鹏; 王飞飞; 杨檬; 曹敬春
Original assignee: Beijing Xinjiangfeng Municipal Engineering Co ltd
Current assignee: Beijing Xinjiangfeng Municipal Engineering Co ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-10-26
Anticipated expiration: 2031-01-29

Abstract

The application discloses a deep foundation pit supporting drainage structure, which relates to the technical field of foundation pit supporting and comprises a foundation pit bottom wall and a foundation pit side wall, wherein a waterproof base layer is arranged on the foundation pit bottom wall, a supporting side plate is fixedly arranged on the foundation pit side wall, and an inclined strut is arranged between the supporting side plate and the waterproof base layer; the inside aqua storage tank that is provided with of waterproof basic unit, be provided with the liquid level monitor in the aqua storage tank, the holding tank that a plurality of intervals set up is seted up to waterproof basic unit's inside, wears to be equipped with the drain pipe in the holding tank, and the drain pipe communicates aqua storage tank and external world, and the drain pipe bottom stretches into in the aqua storage tank bottom, and the common intercommunication of the one end of a plurality of drain pipes aqua storage tank dorsad has the drainage house steward, is provided with the suction pump that is arranged in taking the water in the drainage house steward on the waterproof basic unit. This application has reduced the effect that rainfall precipitation caused the influence of strutting the intensity bottom the foundation ditch.

Description

Deep foundation pit supporting drainage structure

Technical Field

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

Background

The foundation pit is a soil pit excavated at the design position of the foundation according to the elevation of the foundation and the plane size of the foundation. Before excavation, an excavation scheme is determined according to geological and hydrological data and by combining the conditions of buildings nearby the site. The deep foundation pit supporting structure is a supporting structure adopted for the bottom wall of the deep foundation pit and the surrounding environment in order to ensure the safety of the construction of an underground structure and the surrounding environment of the deep foundation pit.

In the related art, before the construction of strutting the foundation ditch, constructor usually can carry out the drainage to the deep basal pit, but rainfall precipitation etc. causes the ponding once more of foundation ditch diapire very easily, soaks the foundation ditch bottom and influences the support intensity of foundation ditch bottom.

SUMMERY OF THE UTILITY MODEL

In order to reduce rainfall and cause the influence to the support intensity of foundation ditch bottom, this application provides a deep basal pit support drainage structures.

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

a deep foundation pit supporting drainage structure comprises a foundation pit bottom wall and a foundation pit side wall, wherein a waterproof base layer is arranged on the foundation pit bottom wall, supporting side plates are fixedly arranged on the foundation pit side wall, and inclined struts are arranged between the supporting side plates and the waterproof base layer;

the inside aqua storage tank that is provided with of waterproof basic unit, be provided with the liquid level monitor in the aqua storage tank, the holding tank that a plurality of intervals set up is seted up to waterproof basic unit's inside, wear to be equipped with the drain pipe in the holding tank, the drain pipe communicates aqua storage tank and external world, the drain pipe bottom stretches into in the aqua storage tank bottom, and is a plurality of the common intercommunication of one end of drain pipe aqua storage tank dorsad has the common sewer, be provided with the suction pump that is arranged in taking the water in the common sewer on the waterproof basic unit.

Through adopting above-mentioned technical scheme, when the circumstances such as rainfall precipitation appear, when the water yield in the aqua storage tank reaches the height of liquid level monitor, the ponding in the aqua storage tank is taken out through main sewer and drain pipe to the suction pump, has reduced the influence that rainfall precipitation caused to the support intensity of foundation ditch bottom.

Preferably, a filter screen is fixedly arranged at one end of the drain pipe close to the water storage tank.

Through adopting above-mentioned technical scheme, the setting up of filter screen has reduced the appearance that causes the condition of drain pipe jam in impurity entering drain pipe such as bold earth, stone in the aqua storage tank.

Preferably, the drain pipe comprises an upper connecting pipe fixedly arranged on the main drain pipe and a lower connecting pipe fixedly arranged on the water storage tank, and a corrugated hose is arranged between the lower connecting pipe and the lower connecting pipe.

Through adopting above-mentioned technical scheme, the setting of going up connecting pipe, corrugated hose and lower connecting pipe has formed the drain pipe, has realized being connected between drain pipe and aqua storage tank and the main sewer.

Preferably, the filter screen is fixedly arranged at one end of the corrugated hose close to the lower connecting pipe.

Through adopting above-mentioned technical scheme, the filter screen sets firmly on corrugated hose, and when the suction pump was drawn water, because corrugated hose is the flexible pipe body, the vibration appears in corrugated hose, and the filter screen vibrates along with corrugated hose together, shakes down impurity such as adnexed earth on the filter screen, has reduced the appearance of the condition of filter screen jam.

Preferably, both ends of the corrugated hose are detachably connected to the upper connection pipe and the lower connection pipe, respectively.

Through adopting above-mentioned technical scheme, the constructor of being convenient for changes corrugated hose.

Preferably, a reinforcing layer is fixedly arranged on the inner wall of the water storage tank.

Through adopting above-mentioned technical scheme, the setting of enhancement layer has played the enhancement supporting role to the inner wall of aqua storage tank.

Preferably, the reinforcing layer comprises a reinforcing steel bar layer and a reinforcing mesh layer arranged on one side of the reinforcing steel bar layer, which is back to the side wall of the water storage tank.

Through adopting above-mentioned technical scheme, realized the reinforcing support effect to the aqua storage tank inner wall, made hydroenergy normally get into in the aqua storage tank simultaneously.

Preferably, the one end of bracing articulates in waterproof basic unit, set firmly the slide rail of vertical setting on strutting the curb plate, the bracing one end of waterproof basic unit dorsad articulates there is the slider, the slider slides and connects in the slide rail, be provided with the retaining member that is used for locking the slider between slide rail and the slider.

By adopting the technical scheme, the angle of the supporting side plate can be adjusted conveniently by constructors according to the actual angle of the side wall of the foundation pit.

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

1. when rainfall and precipitation occur and the water quantity in the water storage tank reaches the height of the liquid level monitor, the water suction pump pumps out the accumulated water in the water storage tank through the main drainage pipe and the drainage pipe, so that the influence of the rainfall and precipitation on the supporting strength of the bottom of the foundation pit is reduced;

2. due to the arrangement of the filter screen, the condition that the drain pipe is blocked due to the fact that large pieces of soil, stones and other impurities in the water storage tank enter the drain pipe is reduced;

3. the filter screen sets firmly on corrugated hose, and when the suction pump drew water, because corrugated hose was the flexible pipe body, the vibration appeared in corrugated hose, and the filter screen vibrates along with corrugated hose together, shakes down the impurity such as adnexed earth on the filter screen, has reduced the appearance of the condition that the filter screen blockked up.

Drawings

Fig. 1 is a schematic view of the overall structure of the present application.

FIG. 2 is a schematic partial cross-sectional view of the present application showing the holding tank, drain, main drain and screen configuration.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

Description of reference numerals: 11. the bottom wall of the foundation pit; 12. the side wall of the foundation pit; 2. a waterproof base layer; 21. a water storage tank; 22. a reinforcing layer; 221. a reinforcing steel bar layer; 222. reinforcing the net layer; 24. accommodating grooves; 25. a support; 26. a water pump; 3. supporting a side plate; 31. a slide rail; 311. a T-shaped groove; 4. bracing; 41. a slider; 411. a T-shaped block; 42. locking the bolt; 5. a drain pipe; 51. a lower connecting pipe; 52. a pipe hoop; 53. a corrugated hose; 54. an upper connecting pipe; 6. a main drain pipe; 7. and (5) filtering by using a filter screen.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses deep basal pit supporting drainage structures.

Examples

Referring to fig. 1, a deep foundation pit supporting drainage structure includes a horizontally disposed bottom wall 11 of a foundation pit and vertically disposed side walls 12 of the foundation pit.

Set firmly waterproof basic unit 2 on the foundation ditch diapire 11, set firmly on the lateral wall 12 of foundation ditch and strut curb plate 3, strut 3 bottom butt of curb plate in waterproof basic unit 2, strut the crab-bolt that wears to be equipped with a plurality of levels and set up on the curb plate 3, the crab-bolt inserts in the lateral wall of basic unit, will strut curb plate 3 and be fixed in lateral wall 12 of foundation ditch.

Strut and be provided with a plurality of bracing 4 between curb plate 3 and the waterproof basic unit 2 interval, bracing 4 has played connection and supporting role to strutting curb plate 3 and waterproof basic unit 2. The bottom end of the inclined strut 4 is hinged on the upper surface of the waterproof base layer 2 through a lower hinged shaft, and the lower hinged shaft is horizontally arranged. The top end of the inclined strut 4 is hinged with a sliding block 41 through an upper hinged shaft, and the axial direction of the upper hinged shaft is the same as that of a lower hinged shaft. One side of the supporting side plate 3, which faces away from the side wall 12 of the foundation pit, is fixedly connected with a slide rail 31, the slide rail 31 corresponds to the slide block 41 and is vertically arranged, and the slide rail 31 is provided with a T-shaped groove 311. The slider 41 is fixedly provided with a T-shaped block 411 corresponding to the T-shaped slot 311, and the T-shaped block 411 is connected in the T-shaped slot 311 in a sliding manner. The slider 41 is connected with a locking bolt 42 through a thread, and the locking bolt 42 sequentially passes through the slider 41 and the T-shaped block 411 and abuts against the bottom wall of the T-shaped groove 311.

In the actual construction process, the constructor of being convenient for adjusts the angle of strutting the curb plate 3 according to the actual angle of foundation ditch lateral wall 12, makes strutting the better laminating of curb plate 3 and foundation ditch lateral wall 12, and bracing 4 takes place the change of angle along with strutting the adjustment of curb plate 3, adjusts the back and accomplishes, screws up locking bolt 42, locks slider 41 in slide rail 31, and then realizes the locking of bracing 4.

Referring to fig. 2, a water storage tank 21 for collecting accumulated water is provided inside the waterproof base layer 2, and a reinforcing layer 22 is fixedly provided on the inner wall of the water storage tank 21 to increase the strength of the inner wall of the water storage tank 21. The reinforcing layer 22 includes a reinforcing steel layer 221 and a reinforcing mesh layer 222. The reinforcing steel layer 221 includes a plurality of reinforcing steel bars vertically and alternately arranged, and the reinforcing steel layer 221 is embedded in the water storage tank 21. The reinforcing mesh layer 222 is positioned on one side of the reinforcing mesh layer 221 opposite to the inner wall of the water storage tank 21, and the reinforcing mesh layer 222 is fixed on the reinforcing mesh layer 221 by winding a plurality of steel wires. The cooperation of the reinforcing layer 221 and the reinforcing mesh layer 222 realizes the reinforcing and supporting function for the inner wall of the water storage tank 21, and enables water to normally enter the water storage tank 21.

A liquid level monitor is fixedly connected to the top end of the inner wall of the water storage tank 21 and is used for monitoring the liquid level height in the water storage tank 21 (the liquid level monitor is not shown in the attached drawings).

Combine fig. 2 and fig. 3, waterproof basic unit 2's inside is seted up the holding tank 24 that a plurality of intervals set up, and 24 vertical settings of holding tank, holding tank 24 bottom and aqua storage tank 21 intercommunication, and waterproof basic unit 2 is run through on 24 tops of holding tank. Drain pipe 5 is worn to be equipped with in the holding tank 24, and drain pipe 5 vertical setting. The drain pipe 5 comprises a lower connecting pipe 51, the bottom end of the lower connecting pipe 51 extends into the bottom of the water storage tank 21 and is fixedly connected with the reinforcing layer 22, and the bottom end of the lower connecting pipe 51 is open and is spaced from the bottom wall of the water storage tank 21. The top end of the lower connecting pipe 51 is detachably connected with a corrugated hose 53 through a pipe hoop 52, the corrugated hose 53 is arranged in the accommodating groove 24 in a penetrating way, and one end of the corrugated hose 53, which faces away from the lower connecting pipe 51, is detachably connected with an upper connecting pipe 54 through the pipe hoop 52. The top ends of the upper connecting pipes 54 are fixedly connected with a drainage header pipe 6, and the inner cavity of the drainage header pipe 6 is communicated with the inner cavity of the upper connecting pipe 54.

Fixedly connected with suction pump 26 on the waterproof basic unit 2, the one end fixed connection of drain 6 is in suction pump 26 and with the suction pump 26 intercommunication, and the other end of drain 6 discharges water to the assigned position.

Fixedly connected with filter screen 7 in corrugated hose 53's the inner chamber, filter screen 7 are located holding tank 24 below, and filter screen 7 is used for filtering impurity such as the bold earth of aquatic, stone, reduces the condition that drain pipe 5 blockked up.

The implementation principle of the deep foundation pit supporting drainage structure in the embodiment of the application is as follows:

when rainfall and precipitation occur, water permeates into the water storage tank 21, and the water amount in the water storage tank 21 reaches the height of the liquid level monitor, the water suction pump 26 is started, the water suction pump 26 pumps accumulated water in the water storage tank 21 through the main drainage pipe 6 and the drainage pipe 5, and the influence of rainfall and precipitation on the supporting strength of the bottom of the foundation pit is reduced;

simultaneously, ponding among the aqua storage tank 21 gets into in drain pipe 5 when, impurity such as bold earth, stone of filter screen 7 in to ponding filters, the condition that drain pipe 5 blockked up has been reduced, filter screen 7 sets firmly on corrugated hose 53, when suction pump 26 drew water, because corrugated hose 53 is flexible pipe body, corrugated hose 53 appears vibrating, filter screen 7 vibrates along with corrugated hose 53 together, vibrate down impurity such as adnexed earth on the filter screen 7, the appearance of the condition that filter screen 7 blockked up has been reduced.

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 support drainage structures, includes foundation ditch diapire (11) and foundation ditch lateral wall (12), its characterized in that: a waterproof base layer (2) is arranged on the bottom wall (11) of the foundation pit, a supporting side plate (3) is fixedly arranged on the side wall (12) of the foundation pit, and an inclined strut (4) is arranged between the supporting side plate (3) and the waterproof base layer (2);

waterproof basic unit (2) inside aqua storage tank (21) that is provided with, be provided with liquid level monitor (23) in aqua storage tank (21), holding tank (24) that a plurality of intervals set up are seted up to the inside of waterproof basic unit (2), wear to be equipped with drain pipe (5) in holding tank (24), drain pipe (5) communicate aqua storage tank (21) with the external world, drain pipe (5) bottom is stretched into in aqua storage tank (21) bottom, and is a plurality of the common intercommunication of the one end of drain pipe (5) aqua storage tank (21) dorsad has main drainage pipe (6), be provided with suction pump (26) that are arranged in taking the water of main drainage pipe (6) on waterproof basic unit (2).

2. The deep foundation pit supporting drainage structure of claim 1, wherein: one end of the drain pipe (5) close to the water storage tank (21) is fixedly provided with a filter screen (7).

3. The deep foundation pit supporting drainage structure of claim 2, wherein: the drain pipe (5) comprises an upper connecting pipe (54) fixedly arranged on the drain main pipe (6) and a lower connecting pipe (51) fixedly arranged on the water storage tank (21), and a corrugated hose (53) is arranged between the lower connecting pipe (51) and the lower connecting pipe (51).

4. The deep foundation pit supporting drainage structure of claim 3, wherein: the filter screen (7) is fixedly arranged at one end of the corrugated hose (53) close to the lower connecting pipe (51).

5. The deep foundation pit supporting drainage structure of claim 3, wherein: the two ends of the corrugated hose (53) are respectively detachably connected to the upper connecting pipe (54) and the lower connecting pipe (51).

6. The deep foundation pit supporting drainage structure of claim 1, wherein: and a reinforcing layer (22) is fixedly arranged on the inner wall of the water storage tank (21).

7. The deep foundation pit supporting drainage structure of claim 6, wherein: the reinforcing layer (22) comprises a reinforcing steel bar layer (221) and a reinforcing mesh layer (222) arranged on one side of the reinforcing steel bar layer (221) back to the side wall of the water storage tank (21).

8. The deep foundation pit supporting drainage structure of claim 1, wherein: one end of bracing (4) articulates in waterproof basic unit (2), set firmly slide rail (31) of vertical setting on strutting curb plate (3), the one end of bracing (4) waterproof basic unit (2) dorsad articulates there is slider (41), slider (41) slide and connect in slide rail (31), be provided with the retaining member that is used for locking slider (41) between slide rail (31) and slider (41).