CN216304684U

CN216304684U - Deep foundation pit drainage structure

Info

Publication number: CN216304684U
Application number: CN202122726255.4U
Authority: CN
Inventors: 汪高锋; 孙杰烽; 王雅琴; 黄叶哪
Original assignee: Zhejiang Shunjiang Building Group
Current assignee: Zhejiang Shunjiang Building Group
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-04-15
Anticipated expiration: 2031-11-09

Abstract

The utility model discloses a deep foundation pit drainage structure which comprises a deep foundation pit and water suction pumps, wherein a circle of drainage ditch is arranged at the center of the deep foundation pit, a rectangular drainage pipe is laid in the drainage ditch, a plurality of water collecting grooves are formed in the periphery of the deep foundation pit along the drainage ditch, a first connecting groove communicated with the drainage ditch is formed in the water collecting groove, a first connecting pipe communicated with the drainage pipe is laid in the first connecting groove, the joint of the first connecting pipe and the water collecting groove is higher than the joint of the first connecting pipe and the drainage pipe, at least one water collecting well is further arranged in the periphery of the drainage ditch of the deep foundation pit, a second connecting pipe communicated with the drainage pipe is arranged in the water collecting well, the joint of the second connecting pipe and the water collecting well is lower than the joint of the second connecting pipe and the drainage pipe, the number of the water suction pumps and the number of the water collecting wells are the same, and the water suction pumps are arranged outside the deep foundation pit and act on the water collecting well.

Description

Deep foundation pit drainage structure

Technical Field

The utility model relates to deep foundation pit protection, in particular to a deep foundation pit drainage structure.

Background

The deep foundation pit refers to a project with an excavation depth of more than five meters or with a complicated geological condition and surrounding environment although not more than five meters, and generally needs to be drained in order to ensure the safety of the surrounding environment of the deep foundation pit in the construction process. The existing drainage knot has a common drainage effect, can not drain completely, and can also leave accumulated water.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a deep foundation pit drainage structure which has the advantage of improving the drainage effect.

The technical purpose of the utility model is realized by the following technical scheme:

the utility model provides a deep basal pit drainage structures, includes deep basal pit, suction pump, and deep basal pit central point puts and is equipped with the round escape canal, lay the drain pipe of rectangle in the escape canal, deep basal pit is equipped with a plurality of water catch bowl along around the escape canal, the water catch bowl is provided with the connection channel one of intercommunication escape canal, lays the connecting pipe one of intercommunication drain pipe in the connection channel one, and to every connecting pipe one, its junction with the water catch bowl is higher than its junction with the drain pipe, and deep basal pit still is equipped with at least one sump pit around the escape canal, the sump pit is provided with the connecting pipe two of intercommunication drain pipe, and to every connecting pipe two, its junction with the sump pit is less than its junction with the drain pipe, suction pump quantity and sump pit are the same, set up outside the deep basal pit and act on the sump pit.

By adopting the technical scheme, water in the deep foundation pit firstly flows into the water collecting tank or the water collecting well, enters the drain pipe from the water collecting tank along the first connecting pipe, namely, the water in all the water collecting tank is finally collected into the drain pipe, then enters the water collecting well from the drain pipe along the second connecting pipe, and finally, the water in the water collecting well is pumped by the water pump, so that the water level in the water collecting well is kept lower than the drain pipe.

Preferably, the drain pipe comprises four first arc elbows, two second arc elbows and three arc elbows, the four first arc elbows are respectively arranged at four angular positions, the two second arc elbows are arranged at the central positions of the two vertical edges, a first inclined pipe is arranged between the first arc elbows, the first inclined pipe gradually decreases from the second arc elbow to the first arc elbow, the two third arc elbows are arranged at the central positions of the two horizontal edges, a second inclined pipe is arranged between the first arc elbow and the second arc elbow, and the second inclined pipe gradually decreases from the first arc elbow to the third arc elbow.

By adopting the technical scheme, the water in the last pipe can flow to the middle point position of the two arc bent pipes III.

Preferably, the number of the water collecting wells is two, the water collecting wells are respectively positioned at the outer side positions of the two arc bent pipes III, and the connecting pipe II is communicated with the middle position of the bottom surfaces of the arc bent pipes III.

By adopting the technical scheme, the number of the water collecting wells is two by combining the arrangement of the water discharging pipes.

Preferably, the water collecting grooves comprise four water collecting grooves I with larger sizes and a plurality of water collecting grooves II with smaller sizes, the four water collecting grooves I are respectively positioned at four corners of the outer side of the drainage ditch, and the connecting pipes I of the four water collecting grooves I are communicated with the adjacent inclined pipes II.

By adopting the technical scheme, the position of the first water collecting groove is set according to the position design of the water collecting well.

Preferably, the plurality of water collecting grooves are distributed at the inner side and the outer side of the vertical side of the drainage ditch.

By adopting the technical scheme, the position of the water collecting tank II is set according to the position design of the water collecting well.

Preferably, four inner walls of the first water collection tank and the second water collection tank are inclined, and for each of the first water collection tank and the second water collection tank, the bottom edge of the inner wall is closer to the central point of the first water collection tank and the second water collection tank than the top edge of the inner wall.

By adopting the technical scheme, water in the deep foundation pit conveniently flows into the water collecting tank along the inclined inner wall of the water collecting tank.

Drawings

FIG. 1 is a schematic top view of an embodiment;

FIG. 2 is an enlarged view of a part of embodiment A;

FIG. 3 is a schematic view of an embodiment of a drain;

FIG. 4 is a sectional view in the side direction of the embodiment;

FIG. 5 is an enlarged view of a part of embodiment B.

Reference numerals: 1. a deep foundation pit; 2. a water pump; 3. a drainage ditch; 4. a drain pipe; 41. bending a first arc pipe; 42. a circular arc bent pipe II; 43. c, bending the pipe into a circular arc; 44. a first inclined pipe; 45. a second inclined pipe; 5. a water collecting well; 6. a third filter screen; 7. a second connecting pipe; 8. a cover plate; 81. a first filter screen; 82. crushing stone; 83. activated carbon; 84. a second filter screen; 9. a first water collecting tank; 10. a water collecting tank II; 11. connecting the first channel; 12. the first connecting pipe is connected.

Detailed Description

The following description is only a preferred embodiment of the present invention, and the protection scope is not limited to the embodiment, and any technical solution that falls under the idea of the present invention should fall within the protection scope of the present invention. It should also be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model.

As shown in fig. 1, a deep foundation pit 1 drainage structure includes a deep foundation pit 1 and a water pump 2. The central point of 1 bottom surfaces of deep basal pit puts the excavation and is equipped with round rectangle escape canal 3, has laid rectangle's drain pipe 4 in the escape canal 3. As shown in fig. 2 and 3 (the joints of the drain pipe 4 and other pipes are omitted in fig. 3), the drain pipe 4 includes four arc elbows, i.e., a first arc elbow 41, two arc elbows, i.e., a second arc elbow 42, and two arc elbows, i.e., a third arc elbow 43. The four arc bent pipes 41 are respectively arranged at four angular positions, the two arc bent pipes 42 are arranged at the central positions of the two vertical edges, the inclined pipes 44 are arranged between the arc bent pipes 41, and the inclined pipes 44 gradually decrease from the arc bent pipes 42 to the arc bent pipes 41. The two arc bent pipes III 43 are arranged at the center positions of the two horizontal edges, the inclined pipe II 45 is arranged between the two arc bent pipes I41, and the inclined pipe II 45 gradually decreases from the arc bent pipes I41 to the arc bent pipes III 43. The water in the last water outlet pipe 4 arranged in this way flows to the middle point of the two circular arc bent pipes three 43.

The deep basal pit 1 is equipped with at least one sump pit 5 around escape canal 3, and suction pump 2 quantity and sump pit 5 are the same, set up outside the deep basal pit 1 and with act on sump pit 5. The water collecting well 5 is used to temporarily collect water discharged from the water discharge pipe 4 and is pumped by the suction pump 2. And in combination with the arrangement of the drainage pipes 4, the number of the water collecting wells 5 is two, and the two water collecting wells are respectively positioned at the outer side positions of the two arc bent pipes III 43. The water collecting well 5 is provided with a second connecting pipe 7 communicated with the water discharge pipe 4, and the second connecting pipe 7 is communicated with the middle position of the bottom surface of the third arc bent pipe 43. For each second connecting pipe 7, the joint of the second connecting pipe and the water collecting well 5 is lower than the joint of the second connecting pipe and the water drainage pipe 4.

As shown in fig. 4 and 5, it can be seen that the upper part of the water collecting well 5 is not used for collecting water discharged from the water discharging pipe 4, and thus the cover plate 8 of the water collecting well 5 is provided with two layers, one layer is opened at the top surface of the water collecting well 5 and one layer is positioned above the junction of the connecting pipe two 7 and the water collecting well 5. Be equipped with by last filter screen 81, rubble 82, active carbon 83, filter screen two 84 that are equipped with down between two-layer apron 8, filter the water that directly flows into water collecting well 5 from deep basal pit 1, avoid impurity to block up suction pump 2.

Deep basal pit 1 is equipped with a plurality of water catch bowl along the escape canal 3 periphery, and the water catch bowl is used for temporarily gathering the water in deep basal pit 1, conveniently will discharge into drain pipe 4. All four inner walls of the water collection tank are in an inclined state, and the bottom edges of the inner walls are closer to the center point of the water collection tank than the top edges of the inner walls. Therefore, water in the deep foundation pit 1 can conveniently flow into the water collecting tank along the inclined inner wall of the water collecting tank.

The water collecting tank is provided with a first connecting channel 11 communicated with the drainage ditch 3, and a first connecting pipe communicated with the drainage pipe 4 is laid in the first connecting channel 11 (the drainage ditch 3, the first connecting channel 11 and the second connecting channel can be filled with stone grains after corresponding pipelines are laid). The depth of the drainage ditch 3 and the laying position of the drainage pipe 4 are well controlled, so that the whole drainage pipe 4 is lower than the bottom surface of the water collecting tank. Thus, for each connection pipe one, the connection point of the connection pipe one and the water collection tank is higher than the connection point of the connection pipe one and the water discharge pipe 4. Thus, the water in the water collecting tank can conveniently enter the water discharge pipe 4 along the first connecting pipe from high to low. The inner wall of the water collecting groove is inclined, the section of the first connecting channel 11 is triangular, and the first connecting pipe is laid by being attached to the inclined surface of the first connecting pipe. The connection part of the first connecting pipe and the water collecting tank is positioned on the inclined inner wall of the water collecting tank close to the drain pipe 4, and a layer of filter screen III 6 is laid on the inclined inner wall to filter impurities.

In combination with the rectangular design of the drainage ditch 3, the water collecting grooves comprise four water collecting grooves I9 with larger size and a plurality of water collecting grooves II 10 with smaller size. The four first water collecting grooves 9 are respectively arranged at four corners of the outer side of the drainage ditch 3, and the connecting pipes I of the four first water collecting grooves 9 are communicated with the adjacent second inclined pipes 45. The water collecting grooves II 10 are distributed at the inner side and the outer side of the vertical edge of the drainage ditch 3, and each water collecting groove II 10 is respectively communicated with the adjacent inclined pipe I44.

Claims

1. A deep foundation pit drainage structure comprises a deep foundation pit (1) and a water suction pump (2), and is characterized in that a circle of drainage ditch (3) is arranged at the center of the deep foundation pit (1), a rectangular drainage pipe (4) is laid in the drainage ditch (3), a plurality of water collecting tanks are arranged on the deep foundation pit (1) along the periphery of the drainage ditch (3), each water collecting tank is provided with a first connecting channel (11) communicated with the drainage ditch (3), a first connecting pipe communicated with the drainage pipe (4) is laid in the first connecting channel (11), the joint of each first connecting pipe and the corresponding water collecting tank is higher than the joint of each first connecting pipe and the corresponding drainage pipe (4), at least one water collecting well (5) is further arranged on the periphery of the drainage ditch (3) of the deep foundation pit (1), each water collecting well (5) is provided with a second connecting pipe (7) communicated with the corresponding drainage pipe (4), and the joint of each second connecting pipe (7) and the corresponding water collecting well (5) is lower than the joint of each drainage pipe (4), the number of the water suction pumps (2) is the same as that of the water collection wells (5), and the water suction pumps are arranged outside the deep foundation pit (1) and act on the water collection wells (5).

2. The deep foundation pit drainage structure according to claim 1, wherein the drainage pipe (4) comprises four first arc elbows (41), two second arc elbows (42) and two third arc elbows (43), the four first arc elbows (41) are respectively arranged at four angular positions, the two second arc elbows (42) are arranged at the central positions of two vertical edges, a first inclined pipe (44) is arranged between the first arc elbows (41), the first inclined pipe (44) is gradually lowered from the second arc elbow (42) to the first arc elbow (41), the two third arc elbows (43) are arranged at the central positions of two horizontal edges, a second inclined pipe (45) is arranged between the first arc elbow (41), and the second inclined pipe (45) is gradually lowered from the first arc elbow (41) to the third arc elbow (43).

3. The deep foundation pit drainage structure according to claim 2, wherein the number of the water collecting wells (5) is two, the two water collecting wells are respectively positioned at the outer side positions of the two arc-shaped bent pipes III (43), and the connecting pipes II (7) are communicated with the middle positions of the bottom surfaces of the arc-shaped bent pipes III (43).

4. A deep foundation pit drainage structure according to claim 3, wherein the plurality of water collection grooves comprise four first water collection grooves (9) with larger sizes and a plurality of second water collection grooves (10) with smaller sizes, the four first water collection grooves (9) are respectively arranged at four corners of the outer side of the drainage ditch (3), and the first connecting pipes of the four first water collection grooves (9) are communicated with the second adjacent inclined pipes (45).

5. The deep foundation pit drainage structure according to claim 4, wherein the second water collecting grooves (10) are distributed at the inner side and the outer side of the vertical edge of the drainage ditch (3).

6. A deep foundation pit drainage structure according to claim 4, wherein the four inner walls of the first water collection groove (9) and the second water collection groove (10) are inclined, and for each first water collection groove and the second water collection groove (10), the bottom edge of the inner wall is closer to the central point than the top edge.