CN106638553B - The intelligent full-automatic recharge system of underground water and construction method on the outside of deep basal pit - Google Patents
The intelligent full-automatic recharge system of underground water and construction method on the outside of deep basal pit Download PDFInfo
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- CN106638553B CN106638553B CN201611009574.0A CN201611009574A CN106638553B CN 106638553 B CN106638553 B CN 106638553B CN 201611009574 A CN201611009574 A CN 201611009574A CN 106638553 B CN106638553 B CN 106638553B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
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Abstract
The present invention relates to a kind of intelligent full-automatic recharge system of underground water on the outside of deep basal pit and construction methods, the underground water that each dewatering well extracts is collected, and after precipitation, it is stored into water tank, the pipeline of water tank and recharge system connects, when needing recharge, in water tank in the automatic recharge to inverted well of underground water of storage；When water level decreasing reaches warning line in inspection well, liquid level monitoring measuring instrument can output signal to alarm at once, and alarm starts A.C. contactor, connect power of electromagnetic valve, and valve opening gives inverted well water filling；After water level reaches ordinary water level in inspection well, fluid level transmitter outputs signal to alarm, and alarm starts A.C. contactor, cuts off power of electromagnetic valve, and recharge terminates.Whole process all uses the automatic water supplement of recharge water tank, and water level monitors, alarms automatically, and recharge starts, closes technology automatically, realizes intelligence, the full-automation of groundwater recharge whole system, ensure that the timeliness and quality of recharge.
Description
Technical field
The present invention relates to a kind of intelligent full-automatic recharge construction methods of underground water on the outside of deep basal pit, and the invention belongs to deep bases
The technical field of the intelligent full-automatic recharge construction of hole outside underground water, is suitable for base pit dewatering recharge and constructs.
Background technology
Deep-foundation pit engineering in building engineering construction is more and more, especially in the higher area of level of ground water, needs to carry out
The precipitation of underground water on the inside of foundation pit, to facilitate construction.In order to reduce on the inside of foundation pit precipitation to foundation pit outer periphery building, construct
The sedimentation and deformation of object influences, and need to carry out supplement recharge to the underground water on the outside of foundation pit.Groundwater recharge is applied on the outside of foundation pit at present
The predominantly artificial observation underground water of work method is situation, and manually carries out recharge according to the decline situation of water level, needs to spend big
The man power and material of amount, and to the situation of change of water level grasp not in time, it is inaccurate；It can not carry out recharge in time in recharge,
Recharge water can not be accurately controlled, be also easy to produce recharge not in time, excess recharge phenomena such as, recharge is of low quality；Recharge is used
Water mostly uses city tap-water, and water consumption is big, cannot be satisfied water-saving requirement.
Invention content
The purpose of the present invention is overcome the deficiencies of the prior art and provide groundwater recharge effect on the outside of a kind of solution deep basal pit
Fruit is poor, and recharge quality can not ensure the intelligent full-automatic recharge system of underground water and construction method on the outside of the deep basal pit of problem.
The purpose of the present invention is what is be achieved through the following technical solutions:Underground water is intelligent full-automatic on the outside of this deep basal pit
Recharge system, including：Draw water well casing, water pump A, drinking-water pipe, aeration tank, filtering ponds, water pump B, electric cabinet A, fluid level controller, water
Case, water pump C, electric cabinet B, alarm, recharge well casing, observation well casing and water monitor；The well casing that draws water is interior to be arranged water pump A, water
Underground water is extracted into aeration tank by pump A by drinking-water pipe；Aeration tank is connected by water pipe A with filtering ponds, and supercharging is arranged on water pipe A
Pump；The one end water pipe B is connected with water tank, and other end setting water pump B is placed in filtering ponds；The one end water pipe C setting water pump C is placed on
In water tank, the other end is arranged in recharge well casing；Water monitor is set in the observation well casing, and electric cabinet B, electricity is arranged in water pump C
Control case B is connected with alarm, and alarm is connected with water monitor；The one end the electric cabinet A is connected with water pump B, the other end with
Fluid level controller is connected.
As preferred：The well casing outsourcing filter screen A that draws water, surrounding backfill microlith to orifice position, and top setting is pre-
Guard aperture pipe processed.
As preferred：The recharge well casing outsourcing filter screen B, surrounding backfill at sandstone to aperture or less 2m, backfill
The active material of 0.3m depths finally backfills cement mortar to aperture.
As preferred：Setting cohesive soil and medium coarse sand on the outside of the observation well casing.
The construction method of the intelligent full-automatic recharge system of underground water, includes the following steps on the outside of this deep basal pit：
Step 1: wellhole is constructed：Precast pile tip is arranged in pumped well bottom of the tube, is fixed in groove, well casing outsourcing of drawing water filter
A and by steel wire rope banding fixed is netted, immersed tube bottom is fixed in the positioning rim of a cup of precast pile tip, with the mode of piling by immersed tube
After being depressed into specified absolute altitude, microlith is poured into draw water well casing and immersed tube, then gradually extracts immersed tube, it is fixed that pumped well tube top portion passes through
Block to keep verticality in position；
Step 2: recharge is installed with water tank：Arrange that recharge water tank, water tank are placed on water tank frame at the construction field (site), water
Case is connected with filtering ponds by water pipe B, and water pump B is arranged in filtering ponds, and fluid level controller and water pump C are arranged in water tank,
Start water pump B moisturizings automatically when water requires supplementation in water tank, water is used with ensure recharge；The other end of water tank passes through water pump C
It is connect with water pipe C；
Step 3: inspection well is arranged：It is configured lower water level observation well casing in water table measure region, in observation well casing
Water monitor is set, and is connected with water level alarm, when WATER LEVEL CHANGES is more than the early warning value of setting, at once automatically
Alarm controls water pump C by electric cabinet B and interrupts recharge of drawing water；
Step 4: recharge Pipe installing：When groundwater recharge well casing, the completion of water level observation well pipe construction, recharge water tank
After installation is complete, water pipe C installations are carried out；
Step 5: drawing water and handling：The underground water for well casing extraction of drawing water is collected, and behind aeration tank, is passed through
Water is extracted into filtering ponds and is filtered precipitation process by booster pump；
Step 6: water tank water storage：Water in filtering ponds is extracted by water pump B in water tank, minimum and highest is preset
Warning line line controls water level in water tank by fluid level controller, after water level reaches setting warning line, controls electric cabinet
The power supply of A cut-out water pumps B stops pumping, and after less than minimum warning line, control water pump B draws water into water tank；
Step 7: groundwater recharge：Recharge is stored into water in water tank, and water tank is connect with recharge well casing, when observation well casing
After interior water level is less than minimum warning line, alarm automatic alarm, the water pump C for controlling water tank starts recharge underground water, works as sight
Water level in well logging pipe reaches former base when cheating outer water level line, and water pump C stops pumping recharge.
The beneficial effects of the invention are as follows:
(1) intelligent full-automatic precipitation recharge system realize underground water automatic classification precipitation purification, water tank automatic water supplement,
Level of ground water monitors automatically and automatic early-warning, recharge automatic start-stop.
(2) precipitation is delivered in water tank on demand after three-level precipitates on the inside of foundation pit, and fluid level controller is arranged in water tank, real
Effective collection, High-rate sedimentation purification and the recycling recharge of existing base pit dewatering utilize, and water tank is connected to recharge system pipeline, profit
Control on demand automatic water supplement and automatic recharge are realized with electromagnetic switch valve.
(3) laying for descending water level observation well in combination shows automated watch-keeping facility and warning device accurate measurements using digital display
WATER LEVEL CHANGES and realization autocontrol early warning.
(4) water source of the underground water of precipitation extraction in deep basal pit as groundwater recharge on the outside of deep basal pit is used, is terminated
The history that groundwater recharge is carried out using city tap-water, has saved great lot of water resources.
Description of the drawings
Fig. 1 is the intelligent full-automatic recharge system figure of underground water on the outside of deep basal pit；
Fig. 2 is pumped well piling pore-forming immersed tunnel structure figure；
Fig. 3 is Fig. 2 vertical views；
In figure：1. foundation pit, level of ground water in 2. foundation pits, 3. draw water well casing, and 4. drinking-water pipes, 5. water pump A, 6. strainer A, 7. is thin
Stone, 8. aeration tanks, 9. booster pumps, 10. water pipe A, 11. filtering ponds, 12. electric cabinet A, 13. water pump B, 14. water pipe B, 15. liquid levels
Controller, 16. water tanks, 17. water pump C, 18. electric cabinet B, 19. alarms, 20. water pipe C, 21. cement mortars, 22. active materials,
23. recharge well casing, 24. sandstones, 25. strainer B, 26. observation well casings, 27. water monitors, 28. cohesive soils, 29. medium coarse sands,
30. water tank frame, the outer water level line of 31. foundation pits, 32. prefabricated guard aperture pipes, 33. immersed tube, 34. grooves, 35. positioning cards, 36. prefabricated piles
Point, 37. positioning rims of a cup, 38. steel wire ropes.
Specific implementation mode
The present invention is described further with reference to embodiment.The explanation of following embodiments is merely used to help understand this
Invention.It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, also
Can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the protection domain of the claims in the present invention
It is interior.
Fig. 1 is the intelligent full-automatic recharge system figure of underground water on the outside of deep basal pit.Underground on the outside of deep basal pit as shown in Figure 1
The intelligent full-automatic recharge system of water includes mainly：Draw water well casing 3, water pump A5, drinking-water pipe 4, aeration tank 8, filtering ponds 11, water
It pumps B13, electric cabinet A12, fluid level controller 15, water tank 16, water pump C17, electric cabinet B18, alarm 19, recharge well casing 23, see
Well logging pipe 26, water monitor 27；The well casing 3 that draws water is interior to be arranged water pump A5, and underground water is extracted into aeration by water pump A5 by drinking-water pipe 4
Pond 8；Aeration tank 8 is connected by water pipe A10 with filtering ponds 11, and booster pump 9 is arranged on water pipe A10；The one end water pipe B14 and water tank 16
It is connected, other end setting water pump B13 is placed in filtering ponds 11；The one end water pipe C20 setting water pump C is placed in water tank 16, separately
One end is arranged in inverted well 23.
Fig. 2 is pumped well piling pore-forming immersed tunnel structure figure, and draw water 3 bottom of well casing setting precast pile tip 36, is fixed on groove
In 34, draw water 3 outsourcing strainer A6 of well casing and by 38 banding fixed of steel wire rope, and 33 bottom of immersed tube is fixed on determining for precast pile tip 36
In the rim of a cup 37 of position, after immersed tube is depressed into specified absolute altitude with the mode of piling, microlith 7 is poured into draw water well casing 3 and immersed tube 33, so
Immersed tube 33 is gradually extracted afterwards.
Fig. 3 is Fig. 2 vertical views, and 3 top of well casing of drawing water keeps verticality by positioning card 35.
The main construction course of the intelligent full-automatic recharge construction method of underground water is as follows on the outside of above-mentioned deep basal pit：
Step 1: wellhole is constructed：Draw water 3 bottom of well casing setting precast pile tip 36, is fixed in groove 34, draw water well casing 3
Outsourcing strainer A6 and by 38 banding fixed of steel wire rope, 33 bottom of immersed tube is fixed in the positioning rim of a cup 37 of precast pile tip 36, is used
After immersed tube is depressed into specified absolute altitude by the mode of piling, microlith 7 is poured into draw water well casing 3 and immersed tube 33, it is heavy then gradually to extract
Pipe 33,3 top of well casing of drawing water keep verticality by positioning card 35.
Step 2: recharge is installed with water tank：Arrange that recharge water tank 16, water tank 16 are placed on water tank frame 30 at the construction field (site)
On, water tank 16 is connected with filtering ponds 11 by water pipe B14, and water pump B13 is arranged in filtering ponds 11, and liquid is arranged in water tank 16
Level controller 15 starts water pump B13 moisturizings when water requires supplementation in water tank 16 automatically, and water is used with ensure recharge.Water tank 16
The other end connect with water pipe C20.
Step 3: inspection well is arranged：It is configured lower water level observation well casing 26 in water table measure region, in observation well casing
Water monitor 27 is set in 26, and is connected with water level alarm 19, when WATER LEVEL CHANGES is more than the early warning value of setting,
Automatic alarm at once controls water pump C17 by electric cabinet B18 and interrupts recharge of drawing water；
Step 4: recharge Pipe installing：When groundwater recharge well casing 23, the construction of water-level observation well casing 26 are completed, recharge is used
Water tank 16 carries out the installation of the automatic recharge equipment of water pipe C20 and part after installation is complete；
Step 5: drawing water and handling：Drawing water, the underground water that well casing 3 extracts is collected, and behind aeration tank, is passed through
Water is extracted into filtering ponds 11 and is filtered precipitation process by booster pump 9.
Step 6: water tank water storage：Water in filtering ponds 11 is extracted by water pump B13 in water tank 16, is preset minimum
With highest warning line line, water level in water tank 16 is controlled by fluid level controller 15, after water level reaches setting warning line,
The power supply of control electric cabinet A12 cut-out water pumps B13 stops pumping, and after less than minimum warning line, controls water pump B13 to water tank
It draws water in 16.
Step 7: groundwater recharge：It being stored into 16 in the water tank of recharge water, water tank 16 is connect with recharge well casing 23, when
The water level in well casing 26 is observed less than after minimum warning line, the water pump C17 of 19 automatic alarm of alarm, control water tank 16 starts
Recharge underground water, when observing the water level in well casing 26 and reaching former base and cheat outer water level line 31, water pump C17 stops pumping recharge.
Claims (1)
1. the construction method of the intelligent full-automatic recharge system of underground water on the outside of a kind of deep basal pit, it is characterised in that including following step
Suddenly：
Step 1: wellhole is constructed：Draw water well casing (3) bottom setting precast pile tip (36), is fixed in groove (34), draw water well casing
(3) outsourcing strainer A (6) and by steel wire rope (38) banding fixed, immersed tube (33) bottom is fixed on the positioning of precast pile tip (36)
In rim of a cup (37), after immersed tube (33) is depressed into specified absolute altitude with the mode of piling, poured into the well casing that draws water (3) and immersed tube (33)
Microlith (7), then gradually extracts immersed tube (33), and (35) are blocked to keep verticality in the well casing that draws water (3) top by positioning；
Step 2: recharge is installed with water tank：Arrangement recharge is placed on water tank frame with water tank (16), water tank (16) at the construction field (site)
(30) on, water tank (16) is connected with filtering ponds (11) by water pipe B (14), the setting water pump B (13) in filtering ponds (11),
Setting fluid level controller (15) and water pump C (17), start water pump B automatically when water tank (16) interior water requires supplementation in water tank (16)
(13) moisturizing uses water with ensure recharge；The other end of water tank (16) is connect by water pump C (17) with water pipe C (20)；
Step 3: inspection well is arranged：It is configured lower water level observation well casing (26) in water table measure region, in observation well casing
(26) setting water monitor (27) in, and be connected with water level alarm (19), when WATER LEVEL CHANGES is more than the pre- of setting
When alert value, automatic alarm, controls water pump C (17) by electric cabinet B (18) and interrupts recharge of drawing water at once；
Step 4: recharge Pipe installing：When groundwater recharge well casing (23), water-level observation well casing (26) construction are completed, recharge is used
Water tank (16) carries out water pipe C (20) and installs after installation is complete；
Step 5: drawing water and handling：The underground water that the well casing that draws water (3) extracts is collected, and after aeration tank (8), is led to
It crosses booster pump (9) water is extracted into filtering ponds (11) and be filtered precipitation process；
Step 6: water tank water storage：Water in filtering ponds (11) is extracted by water pump B (13) in water tank (16), is preset most
Low and highest warning line line, water tank (16) interior water level is controlled by fluid level controller (15), when water level reaches setting warning
After water level, the power supply that control electric cabinet A (12) cuts off water pump B (13) stops pumping, and after less than minimum warning line, controls water
Pump B (13) draws water into water tank (16)；
Step 7: groundwater recharge：Recharge is stored into water in water tank (16), and water tank (16) is connect with recharge well casing (23), when
The water level in well casing (26) is observed less than after minimum warning line, alarm (19) automatic alarm controls the water pump C of water tank (16)
(17) start recharge underground water, when the water level in observation well casing (26), which reaches former base, cheats outer water level line (31), water pump C (17) stops
It only draws water recharge.
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| JP3467266B1 (en) * | 2002-09-17 | 2003-11-17 | 俊多 白石 | Prevention of ground liquefaction due to earthquake and facilities used for this method |
| CN102635122A (en) * | 2012-04-10 | 2012-08-15 | 上海广联建设发展有限公司 | Dewatering-recharging integrated device and process for foundation pit engineering |
| CN103290883B (en) * | 2013-05-12 | 2014-07-09 | 秦作栋 | Method for improving groundwater recharging efficiency by deaerating recharging water through negative pressure |
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| CN104865372B (en) * | 2015-06-12 | 2016-10-19 | 济南轨道交通集团有限公司 | The test method of model assay systems is recharged in the indoor on simulation artesian water stratum |
| CN105525633A (en) * | 2015-11-25 | 2016-04-27 | 同济大学 | Pumping-irrigating self-circulation control system for floating resistance of basement |
| CN206204922U (en) * | 2016-11-16 | 2017-05-31 | 中铁三局集团建筑安装工程有限公司 | The intelligent full-automatic recharge system of underground water on the outside of deep basal pit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112195945A (en) * | 2020-10-22 | 2021-01-08 | 中国电建集团贵阳勘测设计研究院有限公司 | Deep foundation pit construction method for keeping groundwater dynamically balanced |
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