CN217231907U

CN217231907U - Foundation pit dewatering system

Info

Publication number: CN217231907U
Application number: CN202220811841.0U
Authority: CN
Inventors: 刘春成; 吴彤; 张伟; 张星星; 王海清; 邢德新; 王凯
Original assignee: Panjin Urban And Rural Construction Development Service Center; China Railway 16th Bureau Group Co Ltd; City Construction Development Co Ltd of China Railway 16th Bureau Group Co Ltd
Current assignee: Panjin Urban And Rural Construction Development Service Center; China Railway 16th Bureau Group Co Ltd; City Construction Development Co Ltd of China Railway 16th Bureau Group Co Ltd
Priority date: 2021-12-22
Filing date: 2022-04-11
Publication date: 2022-08-19
Anticipated expiration: 2032-04-11

Abstract

The utility model discloses a foundation ditch precipitation system, including water pump, drain pipe, the water pump is equipped with water pump controller, the drain pipe includes the drain pipe in the pit and the drain pipe in the pit, the water pump is connected with the drain pipe drainage end in the pit, the drain pipe in the pit pass through the motorised valve with the drain pipe top in the pit is connected, the drain pipe passes the kickboard in the pit and vertically fixes in the sump pit bottom, the kickboard top is equipped with level detector, level detector with drain pipe sliding connection in the pit, the depth of water detector with the motorised valve electricity is connected, the motorised valve with water pump controller electricity is connected. The utility model discloses construction convenience can full play water pump efficiency, can realize in the foundation ditch a plurality of sump pit drainage operation in timely automatic open stop.

Description

Foundation pit dewatering system

Technical Field

The utility model relates to a construction field particularly, relates to a foundation ditch precipitation system.

Background

The foundation pit dewatering refers to dewatering work performed for ensuring that the foundation pit can be constructed under a dry condition and preventing slope instability, foundation quicksand, pit bottom uplift, pit bottom piping and foundation bearing capacity reduction when the underground water level is higher than the excavation bottom surface when the foundation pit is excavated. The sump is a common structure in foundation pit dewatering and is used for collecting seepage water. In order to prevent the seepage water from overflowing out of the water collecting well, the seepage water in the water collecting well needs to be drained away in time by using a water pump. At present, the water level in the water collecting well is mostly observed by naked eyes of operators, and the drainage operation also needs to be specially arranged for personnel to process. During actual operation, the number of the water collecting wells in the foundation pit is often more than one, and the water level depths in the water collecting wells at different positions are different, so that an operator is required to arrange water pumping among different water collecting wells in time. However, water seepage in the water collecting well can be caused to overflow when water is not pumped in time due to operator operation negligence or other accidents, and the water pump can be damaged due to dry burning caused by long-time idle rotation when the water level is too low and the water pump cannot be stopped in time.

Therefore, at present, a foundation pit dewatering system which can fully exert the efficiency of a water pump and can realize timely and automatic starting and stopping of drainage operation of a plurality of water collecting wells in a foundation pit is urgently needed to be developed.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned technical problem among the correlation technique, the utility model provides a foundation ditch precipitation system can overcome the above-mentioned not enough of prior art.

In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:

the utility model provides a foundation pit dewatering system, includes water pump, drain pipe, the water pump is equipped with water pump controller, the drain pipe includes aboveground drain pipe and drain pipe in the pit, the water pump is connected with aboveground drain pipe drainage end, aboveground drain pipe pass the motorised valve with drain pipe top in the pit is connected, the drain pipe passes the kickboard and vertically fixes in the sump pit bottom, the kickboard top is equipped with water level detector, water level detector with drain pipe sliding connection in the pit, water depth detector with the motorised valve electricity is connected, the motorised valve with water pump controller electricity is connected.

Preferably, the number of the water collecting wells is more than two.

Preferably, the underground drainage pipe is a hard drainage pipe, a water suction port is arranged at the bottom of the underground drainage pipe, and the position of the water suction port is higher than the bottom surface of the water collecting well.

Preferably, the underground drainage pipe is provided with a water depth scale, a low water level scale and a high water level scale.

Preferably, the water collecting well is connected with a drainage ditch, and a filter screen is arranged at the drainage outlet of the drainage ditch.

Preferably, the aboveground drain pipe positioned at the bottom of the foundation pit penetrates through the filter screen and is laid at the bottom of the drainage ditch.

Preferably, the drainage ditch and the top of the water collecting well are both provided with cover plates.

The utility model has the advantages that: the water depth detector floats on the water surface through the floating plate; the automatic start and stop of the pumping operation in a single water collecting well can be realized through the linkage of the water depth detector and the electric valve; the automatic start and stop of the water pump are realized through the linkage between the electric valve and the water pump controller; the filter screen and the cover plate prevent the sump from being blocked; the leveling and safety of a construction site are realized by laying the underground drainage pipe at the bottom of the drainage ditch. The utility model discloses construction convenience can full play water pump efficiency, can realize in the foundation ditch a plurality of sump pit drainage operation in timely automatic open stop.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a foundation pit dewatering system according to an embodiment of the present invention;

in the figure: 1. a water pump; 2. a drain pipe; 3. a floating plate; 4. a water collecting well; 5. a water depth detector; 6. a drainage ditch; 7. a cover plate; 11. a water pump controller; 21. an uphole drain pipe; 22. a downhole drain pipe; 23. an electrically operated valve; 24. a water suction port; 61. and (4) a filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art all belong to the protection scope of the present invention.

As shown in fig. 1, the foundation pit dewatering system according to the embodiment of the present invention includes a water pump 1 and a drain pipe 2, wherein the water pump 1 is provided with a water pump controller 11, the drain pipe 2 includes an aboveground drain pipe 21 and an underground drain pipe 22, the water pump 1 is connected with a drain end of the aboveground drain pipe 21, the aboveground drain pipe 21 is connected with a top end of the underground drain pipe 22 through an electric valve 23, the underground drain pipe 22 passes through a floating plate 3 and is vertically fixed at a bottom of a water collecting well 4, a water level detector 5 is arranged above the floating plate 3, the water level detector 5 is slidably connected with the underground drain pipe 22, the water depth detector 5 is electrically connected with the electric valve 23, and the electric valve 23 is electrically connected with the water pump controller 11; the number of the water collecting wells 4 is more than two; the underground drainage pipe 22 is a hard drainage pipe, the bottom of the underground drainage pipe 22 is provided with a water suction port 24, and the position of the water suction port 24 is higher than the bottom surface of the water collecting well 4; the underground drain pipe 22 is provided with water depth scales, low water level scales and high water level scales; the water collecting well 4 is connected with a drainage ditch 6, and a drainage port of the drainage ditch 6 is provided with a filter screen 61; the aboveground drain pipe 21 positioned at the bottom of the foundation pit penetrates through the filter screen 61 and is laid at the bottom of the drainage ditch 6; the drainage ditch 6 reaches the sump pit 4 top all is equipped with apron 7.

For the convenience of understanding the technical solution of the present invention, the following detailed description will be made of the technical solution of the present invention through a specific use mode.

During construction and construction:

firstly, excavating and building a water collecting well 4 and a drainage ditch 6 at the bottom of a foundation pit;

secondly, vertically fixing the underground drainage pipe 22 at the bottom of the water collecting well 4 by penetrating through the floating plate 3;

thirdly, installing a water depth detector 5 above the floating plate 3 and connecting the water depth detector with a downhole drain pipe 22;

fourthly, connecting the underground drainage pipe 22 with the aboveground drainage pipe 21 through an electric valve 23;

fifthly, the ground drain pipe 21 penetrates through the filter screen 61 and is laid at the drainage ditch 6 and the side slope of the foundation pit and connected with the water pump 1;

sixthly, connecting the electric valve 23 with the water depth detector 5 and the water pump controller 11 through cables;

and seventhly, laying cover plates 7 on the tops of the water collecting wells 4 and the drainage ditches 6.

In particular use: when no water exists in the water collecting well 4, the floating plate 3 is positioned at the top of the water suction port 24, the electric valve 23 is in a closed state, and the top end of the corresponding underground drainage pipe 22 is blocked; when the water level in the water collecting well 4 is higher than the top of the water suction port 24, the floating plate 3 floats on the water surface, and the water depth detector 5 positioned above the floating plate 3 can judge the water depth condition according to the water depth scale of the underground drainage pipe 22; when the water surface rises and the position of the water depth detector 5 is higher than the high water level scale of the underground drainage pipe 22, the water depth detector 5 transmits a signal to the electric valve 23, the electric valve 23 is opened, and the top end of the corresponding underground drainage pipe 22 is opened; when the water surface descends and the position of the water depth detector 5 is lower than the low water level scale of the underground drainage pipe 22, the water depth detector 5 transmits a signal to the electric valve 23, the electric valve 23 is closed, and the top end of the corresponding underground drainage pipe 22 is plugged; the opening and closing of the electric valves 23 transmit signals to the water pump controller 11, and when all the electric valves 23 are closed, the water pump controller 11 controls the water pump 1 to stop; when any one electric valve 23 is opened, the water pump controller 11 controls the water pump 1 to be opened; because 4 drainage routes of the sump pit that the water level is low are blocked, therefore the water pump 1 only extracts the water in the sump pit that the water level is higher to make full use of the mechanical efficiency of the water pump 1, can also prevent the dry combustion method of idle running of the water pump 1.

The utility model discloses construction convenience can full play water pump efficiency, can realize opening in the foundation ditch a plurality of sump pit drainage operation's timely automation and stop.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A foundation pit dewatering system is characterized by comprising a water pump (1) and a drain pipe (2), the water pump (1) is provided with a water pump controller (11), the drain pipe (2) comprises an aboveground drain pipe (21) and an underground drain pipe (22), the water pump (1) is connected with the drainage end of an aboveground drainage pipe (21), the aboveground drainage pipe (21) is connected with the top end of a downhole drainage pipe (22) through an electric valve (23), the underground drainage pipe (22) passes through the floating plate (3) and is vertically fixed at the bottom of the water collecting well (4), a water level detector (5) is arranged above the floating plate (3), the water level detector (5) is connected with the underground drainage pipe (22) in a sliding way, the water level detector (5) is electrically connected with the electric valve (23), and the electric valve (23) is electrically connected with the water pump controller (11).

2. Foundation pit precipitation system according to claim 1, characterized in that the number of water collection wells (4) is more than two.

3. A foundation pit dewatering system according to claim 1, wherein the downhole drainage pipe (22) is a hard drainage pipe, a water suction port (24) is arranged at the bottom of the downhole drainage pipe (22), and the water suction port (24) is higher than the bottom surface of the water collecting well (4).

4. A foundation pit dewatering system according to claim 1, wherein the downhole drain (22) is provided with a water depth scale, a low water level scale, and a high water level scale.

5. A foundation pit dewatering system according to claim 1, wherein the water collecting well (4) is connected with a drainage ditch (6), and a filter screen (61) is arranged at the drainage port of the drainage ditch (6).

6. A foundation pit dewatering system according to claim 5, wherein the above-ground drain (21) at the bottom of the foundation pit is laid through the filter screen (61) to the bottom of the drain (6).

7. A foundation pit dewatering system according to claim 6, wherein the drainage ditch (6) and the top of the water collecting well (4) are provided with cover plates (7).