CN207452925U - Base pit dewatering device and base pit dewatering system - Google Patents

Base pit dewatering device and base pit dewatering system Download PDF

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Publication number
CN207452925U
CN207452925U CN201721126851.6U CN201721126851U CN207452925U CN 207452925 U CN207452925 U CN 207452925U CN 201721126851 U CN201721126851 U CN 201721126851U CN 207452925 U CN207452925 U CN 207452925U
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pit
water
catch pit
catch
base
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CN201721126851.6U
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尚旭
俞财照
李鹏
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Shanghai Baoye Group Corp Ltd
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Shanghai Baoye Group Corp Ltd
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Abstract

The utility model provides a kind of base pit dewatering device and base pit dewatering system, which includes:The bed course being arranged on foundation pit bottom wall;The catch pit being arranged under bed course;It is arranged in catch pit to detect the water amount detection device of water content in catch pit;The water pump being arranged in catch pit;The controller being electrically connected with water amount detection device, to receive the water content of water amount detection device detection, and according to the operating status of water content control water pump.The utility model realizes the automatic ponding for extracting catch pit by water amount detection device, controller and water pump, and then realizes the purpose of the automatic precipitation of foundation pit;On the one hand, which observes the water content of catch pit without construction personnel, and then saves substantial amounts of man power and material, reduces the cost of construction;On the other hand, the operating status that the water content in catch pit controls water pump is detected by water amount detection device, not only prevents the ponding in catch pit from crossing multi-overflow to mat surface, also avoids the generation of dry combustion method pump phenomenon.

Description

Base pit dewatering device and base pit dewatering system
Technical field
The utility model is related to technical field of building construction, are dropped in particular to a kind of base pit dewatering device and foundation pit Water system.
Background technology
Using the construction method that dewatering well is bored in foundation pit surrounding during deep foundation pit precipitation, but trepan precipitation after boring deep 8 meters Bottom into rugged lithosphere can not deep drilling down, bottom depth is higher than elevator catch pit in deep basal pit at this time Depth.There is no underground water after the water in dewatering well is drained, in dewatering well to gush out, at this time in foundation pit minimum point elevator The water of catch pit is still poured into from sandy gravel stratum and lithosphere layered position into catch pit, if extracting the water of catch pit not in time, The full rear underground water of water gushes on starting, and the mat surface of entire basement has bright water to occur.For a long time, deep basal pit basis waterproof is applied Work is mostly using flexible waterproof sheet, often because dewatering effect is undesirable or because perched water can not be controlled well System, underground water have hydraulic pressure that entire waterproof roll layer will be made to float, and bring very big difficulty to flexible water construction, make waterproofing work Construction quality can not be ensured well or even influence the whole construction period since local waterproof can not construct.Such as Fruit directly puts immersible pump in catch pit and draws water, and will influence the waterproof construction of catch pit and the construction of the mat foundation in later stage.
China Patent No. is:The patent of 205205842 U of CN discloses a kind of deep basal pit local dewatering structure, bag It includes:Bed course arranged on deep basal pit bottom;Waterproof layer on bed course;Sole plate on waterproof layer;Under bed course Catch pit;Water repellent component in deep basal pit, precipitation component include:Built-in pipe, one end of built-in pipe are inserted in catch pit, Formation plugs end, plugs end and is equipped with permeable hole, the other end of built-in pipe exposes sole plate;Arranged on built-in pipe upper seal ring and Lower seal ring, upper seal ring are fixed in sole plate, and lower seal ring is fixed in bed course;And the sewage arranged on catch pit Pump.
Deep basal pit local dewatering structure in above-mentioned technical proposal is drawn water by water pump timing, it is necessary to which construction personnel is uninterrupted Water content in ground observation catch pit, and control sewage pump manually accordingly;But construction personnel's observation is not opened always not in time It is excessive easily to occur ponding during water pump, underground water starts to gush out catch pit overflow to mat surface after the underground water that causes to catchment is full, So that mat surface has bright water to occur, the waterproof construction of catch pit and the construction of the mat foundation in later stage are influenced;Meanwhile constructor Member's observation is not turned off sewage pump for a long time not in time, it will and sewage is caused all to detach rear sewage pump also in working condition, it will It can cause the generation of dry combustion method pump phenomenon.
Utility model content
In consideration of it, the utility model proposes a kind of base pit dewatering device and base pit dewatering systems, it is intended to solve existing dirt Pumping for water pump causes ponding excessive or not in time the problem of dry combustion method pumps.
On one side, the utility model proposes a kind of base pit dewatering device, which includes:It is arranged on foundation pit bottom wall Bed course;The catch pit being arranged under the bed course;It is arranged in the catch pit to detect water content in the catch pit Water amount detection device;The water pump being arranged in the catch pit;The controller being electrically connected with the water amount detection device is used To receive the water content of the water amount detection device detection, and according to the operating status of the water content control water pump.
Further, above-mentioned base pit dewatering device, the water amount detection device pass through the fixation that is set in the catch pit Part is connected with the catch pit.
Further, above-mentioned base pit dewatering device is provided with waterproof layer on the bed course.
Further, above-mentioned base pit dewatering device, the waterproof layer is polymer cement waterproof paint layer, waterproof mortar course Or waterproof roll layer.
Further, above-mentioned base pit dewatering device is provided with fish tail and waterproof layer on the waterproof layer.
Further, above-mentioned base pit dewatering device, the catch pit are arranged at the centre position of the bottom of foundation ditch.
Further, above-mentioned base pit dewatering device, the side wall and bottom wall of the catch pit are provided with filter layer.
The bed course that base pit dewatering device provided by the utility model is laid with by foundation pit bottom wall improves the water stability of foundation pit, The ponding of foundation pit is all flowed in catch pit by the catch pit set below bed course, is detected by the water in catch pit Device detects the water content in catch pit and is sent to controller, controls the operation of water pump according to water content by controller State.
Further, base pit dewatering device provided by the utility model, it is real by water amount detection device, controller and water pump Show the ponding of automatic extraction catch pit, and then realize the purpose of the automatic precipitation of foundation pit;On the one hand, the device is without construction personnel The water content of catch pit is observed incessantly, and then saves substantial amounts of man power and material, so as to reduce the cost of construction;Separately On the one hand, the operating status that the water content in catch pit controls water pump is detected by water amount detection device, can not only prevent from collecting Ponding in puddle crosses multi-overflow to mat surface, can also avoid the generation of dry combustion method pump phenomenon.
On one side, the utility model proposes a kind of base pit dewatering system, which is provided with foundation pit and above-mentioned foundation pit Dewatering device.
Further, above-mentioned base pit dewatering system, the stock mould that the foundation pit side-wall is set are provided outside stock mould protective layer.
Further, above-mentioned base pit dewatering system, the stock mould protective layer are SBS waterproof roll layers.
Since base pit dewatering device has said effect, so the base pit dewatering system with the base pit dewatering device also has There is corresponding technique effect.
Description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this field Technical staff will be apparent understanding.Attached drawing is only used for showing the purpose of preferred embodiment, and is not considered as to this practicality New limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is the structure diagram for the base pit dewatering device that the utility model embodiment provides.
Specific embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although the disclosure is shown in attached drawing Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure Completely it is communicated to those skilled in the art.It should be noted that in the case where there is no conflict, the implementation in the utility model Feature in example and embodiment can be mutually combined.It is below with reference to the accompanying drawings and in conjunction with the embodiments new this practicality is described in detail Type.
Device embodiment:
Referring to Fig. 1, for the structure diagram for the base pit dewatering device that the utility model embodiment provides, the base pit dewatering Structure includes:Bed course 1, catch pit 2, water amount detection device 3, water pump 4, controller 5 and precipitation part 7;Wherein, bed course 1 is arranged at On the bottom wall of foundation pit 6, catch pit 2 is arranged at the lower section of bed course 2, and water amount detection device 3 is arranged in catch pit 2, water detection To detect the water content in catch pit 2, water pump 4 is arranged in catch pit 2 device 3, controller 5 and 3 electricity of water amount detection device Connection, water amount detection device 5 control water to receive the water content of the detection of water amount detection device 3 according to the water content of reception The operating status of pump 4, downcomer 7 is arranged at the bottom of catch pit 2, to extract the ponding in catch pit 2 to outside foundation pit 6.
Specifically, bed course 1 is provided on the bottom wall of foundation pit 6, bed course 1 is concrete cushion;If the steady shape of the water of soil matrix When condition is bad, for bed course 1 to improve the steady situation of the water of soil matrix, water stability is good, improves the water stability of pavement structure and freeze proof Swollen ability, and diffusible load is deformed with reducing soil matrix;Catch pit is arranged at centre position i.e. 6 bottom wall of foundation pit of 6 bottom of foundation pit Centre position dug catch pit 2 downwards, be precipitated to so that the ponding inside foundation pit 6 can be concentrated all in catch pit 2, so as to Prevent ponding is deposited on the bottom wall of foundation pit 6 from reducing its water stability;Water amount detection device 3 is provided in catch pit 2, to It detects the water content of precipitation in catch pit 2 and the water content detected sends controller 5 to signal form;To prevent from catchmenting Silt in 2 internal water accumulations etc. to be cheated to damage it into water pump 4 is interior, the side wall and bottom wall of catch pit 2 are provided with filter layer, with Just silt in 2 internal water accumulation of catch pit etc. is prevented to enter in water pump 4;Water pump 4 is arranged in catch pit 2, and pump mouth is arranged at On the bottom wall of catch pit 2, all extracted to the outside of foundation pit 6 in order to by the ponding in catch pit 2;Controller 5 is receiving The water content that water amount detection device 3 transmits, and according to the operating status of water content control water pump 4;When the water that controller 5 receives contains When amount is greater than or equal to threshold value, controller 5 controls water pump 4 to open operation, to prevent the ponding in catch pit 2 excessive;Work as control The water content that device 5 processed receives is approximately equal to zero or during less than some definite value, and controller 5 controls water pump 4 out of service, to prevent doing Burn the generation of pump phenomenon;The bottom of downcomer 7 is inserted in the base soil of 2 bottom of catch pit, and side wall offers several through holes, Penetrating the ponding in catch pit to downcomer 7, all to extract the ponding in catch pit 2 to outside foundation pit 6;For Convenient for the extraction of ponding, the top of downcomer 7 is connected with vacuum pump, so that the ponding in catch pit 2 all extracts;For Further increase it and extract the effect of ponding, the bottom of downcomer 7 is different from the position of water pump.
It will be readily appreciated that the bed course 1 that the present embodiment is laid with by 6 bottom wall of foundation pit improves the water stability of foundation pit 6, The catch pit 2 set by 1 lower section of bed course all flows to the ponding of foundation pit 6 in catch pit 2, passes through the water in catch pit 2 Amount detecting device 3 detects the water content in catch pit 2 and is sent to controller 5, is controlled by controller 5 according to water content The operating status of water pump 4.
Further, the base pit dewatering device provided in the present embodiment passes through water amount detection device 3, controller 5 and water pump 4 realize the automatic ponding for extracting catch pit 2, and then realize the purpose of the automatic precipitation of foundation pit;On the one hand, the device is without construction Personnel observe the water content of catch pit 2 incessantly, and then save substantial amounts of man power and material, so as to reduce construction into This;On the other hand, the operating status that the water content in catch pit 2 controls water pump 4 is detected by water amount detection device 3, not only may be used To prevent the ponding in catch pit 2 from crossing multi-overflow to mat surface, the generation of dry combustion method pump phenomenon can also be avoided.
With continued reference to Fig. 1, water amount detection device 3 passes through the interior fixing piece set of the catch pit 2(It is not shown in figure)With The catch pit 2 is connected.
Specifically, fixing piece is provided in catch pit 2, fixing piece is fixed to the bottom of catch pit for stent;Certainly, Gu It can be fixed block to determine part, and to improve the accuracy that water amount detection device 3 detects, fixed block can be arranged at the bottom of catch pit 2 The lower part of wall or side wall.
Obviously it is achieved that, the present embodiment is fixed to by the fixing piece of setting in catch pit 2, and water is avoided to detect The shift position under the action of by the ponding in catch pit 2 or under the influence of other external force of device 3, and then water amount detection device 3 detects The phenomenon that water content is inaccurate.
With continued reference to Fig. 1, further to carry out waterproof to the bottom wall of foundation pit 6, waterproof layer 8 is provided on bed course 1;To prevent The damage of waterproof layer 8 is provided with fish tail and waterproof layer 9 on waterproof layer 8.
Specifically, waterproof layer 8 is polymer cement waterproof paint layer, waterproof mortar course or waterproof roll layer;Bed course 1 Top can be laid with one layer of waterproof roll, one layer of fish tail and waterproof layer 9 is laid on waterproof roll, to avoid the impaired of waterproof roll.
To sum up, the bed course 1 that the present embodiment is laid with by 6 bottom wall of foundation pit improves the water stability of foundation pit 6, by under bed course 1 The catch pit 2 just set all flows to the ponding of foundation pit 6 in catch pit 2, passes through the water amount detection device 3 in catch pit 2 It detects the water content in catch pit 2 and is sent to controller 5, control the operation of water pump 4 according to water content by controller 5 State.
Further, the base pit dewatering device provided in the present embodiment passes through water amount detection device 3, controller 5 and water pump 4 realize the automatic ponding for extracting catch pit 2, and then realize the purpose of the automatic precipitation of foundation pit;On the one hand, the device is without construction Personnel observe the water content of catch pit 2 incessantly, and then save substantial amounts of man power and material, so as to reduce construction into This;On the other hand, the operating status that the water content in catch pit 2 controls water pump 4 is detected by water amount detection device 3, not only may be used To prevent the ponding in catch pit 2 from crossing multi-overflow to mat surface, the generation of dry combustion method pump phenomenon can also be avoided.
System embodiment:
Referring to Fig. 1, which is provided with foundation pit and above-mentioned base pit dewatering device.
Specifically, the stock mould 10 that foundation pit side-wall is set is provided outside stock mould protective layer 11;To increase the stabilization of foundation pit 6 Property, each sidewall surfaces of foundation pit 6 are equipped with stock mould 10;To prevent the breakage of stock mould 10, stock mould protection is equipped with outside stock mould 10 Layer 11, stock mould protective layer 11 are SBS waterproof roll layers.
Since base pit dewatering device has said effect, so the base pit dewatering system with the base pit dewatering device also has There is corresponding technique effect.
Obviously, those skilled in the art can carry out the utility model various modification and variations without departing from this practicality New spirit and scope.If in this way, these modifications and variations of the utility model belong to the utility model claims and Within the scope of its equivalent technologies, then the utility model is also intended to comprising including these modification and variations.

Claims (10)

1. a kind of base pit dewatering device, which is characterized in that including:
The bed course being arranged on foundation pit bottom wall(1);
The catch pit being arranged under the bed course(2);
It is arranged at the catch pit(2)It is interior detecting the catch pit(2)The water amount detection device of interior water content(3);
It is arranged at the catch pit(2)Interior water pump(4);
With the water amount detection device(3)The controller of electrical connection(5), to receive the water amount detection device(3)Detection Water content, and the water pump is controlled according to the water content(4)Operating status.
2. base pit dewatering device according to claim 1, which is characterized in that the water amount detection device(3)By described Catch pit(2)The fixing piece of interior setting and the catch pit(2)It is connected.
3. base pit dewatering device according to claim 1 or 2, which is characterized in that the bed course(1)On be provided with waterproof layer (8).
4. base pit dewatering device according to claim 3, which is characterized in that the waterproof layer(8)Prevent for polymer cement Water paint layer, waterproof mortar course or waterproof roll layer.
5. base pit dewatering device according to claim 3, which is characterized in that the waterproof layer(8)On be provided with waterproof guarantor Sheath(9).
6. base pit dewatering device according to claim 1 or 2, which is characterized in that the catch pit(2)It is arranged at the base Hole(6)The centre position of bottom.
7. base pit dewatering device according to claim 1 or 2, which is characterized in that the catch pit(2)Side wall and bottom wall It is provided with filter layer.
8. a kind of base pit dewatering system, which is characterized in that be provided with foundation pit(6)With base as described in any one of claim 1 to 7 Cheat dewatering device.
9. base pit dewatering system according to claim 8, which is characterized in that the foundation pit(6)The stock mould that side wall is set (10)It is provided outside stock mould protective layer(11).
10. base pit dewatering system according to claim 9, which is characterized in that the stock mould protective layer(11)For SBS waterproofs Coiled material layer.
CN201721126851.6U 2017-09-05 2017-09-05 Base pit dewatering device and base pit dewatering system Active CN207452925U (en)

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Application Number Priority Date Filing Date Title
CN201721126851.6U CN207452925U (en) 2017-09-05 2017-09-05 Base pit dewatering device and base pit dewatering system

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Application Number Priority Date Filing Date Title
CN201721126851.6U CN207452925U (en) 2017-09-05 2017-09-05 Base pit dewatering device and base pit dewatering system

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Publication Number Publication Date
CN207452925U true CN207452925U (en) 2018-06-05

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110306579A (en) * 2019-05-08 2019-10-08 北京正和恒基滨水生态环境治理股份有限公司 Method on Dewatering of Foundation Pit
CN111980041A (en) * 2020-08-27 2020-11-24 河南科技大学 A kind of precipitation box and foundation pit working face precipitation system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110306579A (en) * 2019-05-08 2019-10-08 北京正和恒基滨水生态环境治理股份有限公司 Method on Dewatering of Foundation Pit
CN111980041A (en) * 2020-08-27 2020-11-24 河南科技大学 A kind of precipitation box and foundation pit working face precipitation system

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