CN100532730C - Air flow filling and sucking type foundation draining method - Google Patents
Air flow filling and sucking type foundation draining method Download PDFInfo
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- CN100532730C CN100532730C CNB2006101548589A CN200610154858A CN100532730C CN 100532730 C CN100532730 C CN 100532730C CN B2006101548589 A CNB2006101548589 A CN B2006101548589A CN 200610154858 A CN200610154858 A CN 200610154858A CN 100532730 C CN100532730 C CN 100532730C
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- water discharging
- discharging body
- air
- air flow
- type foundation
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- 238000000034 method Methods 0.000 title claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 76
- 238000007599 discharging Methods 0.000 claims description 72
- 239000004576 sand Substances 0.000 claims description 26
- 239000004927 clay Substances 0.000 claims description 10
- 239000012528 membrane Substances 0.000 claims description 9
- 239000000945 filler Substances 0.000 claims description 6
- 239000003673 groundwater Substances 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 238000006073 displacement reaction Methods 0.000 abstract description 7
- 238000005086 pumping Methods 0.000 abstract 1
- 230000001502 supplementing effect Effects 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000007596 consolidation process Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004746 geotextile Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention provides air current suction type groundsill drainage, in particular a drainage in which an air current channel is formed inside a displacement hull by supplementing and pumping air so as to smoothly discharge the water content in the groundsill and to consolidate the groundsill. The prior art has the shortcomings of difficult drainage and bad effect. The invention has the following steps: 1. the displacement hull with a drainage channel is provided with at least one vertical hollow tubes inside; 2. the displacement hull with vertical hollow tubes is inserted into the groundsill; 3. the groundsill is pressed; 4. the air is led into the displacement hull from the hollow tubes and the air is pumped from the upper end of he drainage channel of the displacement hull, and the groundsill water is drained earthward along the displacement hull. The air can flow in the drainage system by forming the air current channel, thereby fulfilling the purposes of improving the drainage effect, being convenient to use by less labor, having good drainage effect and effectively guaranteeing the groundsill treatment quality.
Description
[technical field]
The present invention relates to a kind of moisture treatment of soft foundation method, specifically a kind ofly make and form gas channel in the water discharging body, with smooth and easy discharge ground institute water content, impel the drainage of ground consolidation by replenish importing air and suction air.
[background technology]
The vacuum dehydration method is generally adopted in existing moisture soft foundation draining, comprises the steps:
(1) embedding at least one vertical vacuum drainpipe in water discharging body (band drain);
(2) water discharging body is vertically inserted ground;
(3), the moisture content in the ground is discharged with the air that is sucked along drainage channel at the upper end of water discharging body vacuum tube suction air.
Adopt this water discharge method, because just uniaxially is bled from water discharging body, air can not get replenishing, make the air pressure in water discharging body and the ground more and more littler, increasing with the pressure differential in the external world, bleeding needs increasing suction force, after suction a period of time, the water discharging body internal gas pressure is very little, and suction causes draining to become very difficult near dead state.Therefore, even if adopt the vacuum dehydration method to carry out the draining of long period, often can only extract moisture content near the face of land, be difficult to get rid of the ponding of ground depths, cause still having part moisture content to be retained in water discharging body and the ground, easily cause drainage effect to fall flat, influenced foundation quality.
[summary of the invention]
In order to overcome the above-mentioned defective that exists in the prior art, the invention provides a kind of air flow filling and sucking type foundation draining method, not only can be from suction air in the water discharging body, also can in water discharging body, replenish air, the inspiratory flow passage is filled in formation, water discharging body and ground internal gas pressure are remained within limits, be convenient to smooth and easy draining, guarantee drainage effect and ground processing quality.
For this reason, the present invention adopts following technical scheme: air flow filling and sucking type foundation draining method is characterized in that it may further comprise the steps:
(1) at least one vertical hollow tube is set in advance in having the water discharging body of drainage channel;
(2) water discharging body with the vertical hollow tube of described band inserts ground;
(3) ground is exerted pressure;
(4) air is imported water discharging body from hollow tube in, and from the drainage channel upper end suction air of water discharging body, guiding ground water is along water discharging body row earthward.
After air charges into the water discharging body bottom by hollow tube, can be diffused in the water discharging body, when aspirating in the water discharging body upper end, air can upwards flow along drainage channel, be drawn out of from the water discharging body upper end at last, make the air-flow of air formation, in the air process of flowing, drive and guide the moisture content from ground infiltration water discharging body to discharge from the drainage channel of water discharging body together, make ground consolidation by above-mentioned aspiration circuit or channel flow.Like this, the air pressure in the water discharging body can remain within the specific limits, is close with ambient pressure, only needs less suction force just can produce the expection air-flow, and is efficient and convenient.After adopting this drainage certain hour, can effectively get rid of the excessive moisture in the soil, in the identical unit interval, can improve displacement greatly, guarantee ground processing quality.Water discharging body of the present invention can adopt existing band drain, and is convenient and easy.After water discharging body is inserted ground, need ground is exerted pressure, so above-mentioned (three) step and (four) step order can be changed or be carried out simultaneously.
As the further of technique scheme improved and replenish, the present invention adopts following technical measures:
Water discharging body comprises outer filter membrane that covers and built-in core body, before being inserted into ground, the core body lower end with water discharging body cuts off one section earlier, and the hollow tube lower end of running through water discharging body is exposed, again filter membrane bottom is tightened or upwards dug and wrap the core body lower end, form a filter membrane bag.Filter membrane only allows the sky G﹠W pass through in order to prevent earth impurity and enter in the water discharging body, guarantees that draining is smooth and easy, and auxiliary tool has increased orifice area, helps the diffusion of air and the circulation of moisture content.
A plurality of water discharging bodys are inserted ground, and the upper end of all water discharging body hollow tubes is connected in an air inlet is responsible for and goes up to form the air inlet pipe network, the upper end of all water discharging body drainage channels is connected with a suction tube, connects the auxiliary tool that is used to increase orifice area in the hollow tube lower end.After forming aforementioned connecting pipe, suction tube is linked to each other with a vacuum pump, air inlet is responsible for and then is connected with atmosphere, and described air inlet is responsible for and is provided with air pressure regulator.Make water discharging body form the pipe network shape, can improve drainage effect and efficient, increase simultaneously treated area of base, air pressure regulator is used to regulate the air pressure in the water discharging body, makes it to maintain under the certain negative pressure state, is convenient to ground water and enters in the water discharging body.A described air inlet is responsible for and a suction tube can be one or one group of body.Water discharging body drainage channel and suction tube are connected in the following way: offer some through holes and outside pipe, coat filter screen at suction tube, on suction tube and water discharging body, cover layer of sand, on layer of sand, cover 1 to 2 layer of diaphragm seal again, water discharging body drainage channel and suction tube are connected by the space in the layer of sand.Diaphragm seal is enclosed in water discharging body, suction tube and layer of sand in the enclosure space, and suction tube will pass to water discharging body by layer of sand by the suction force that vacuum pump produces, and forces interior air of water discharging body and moisture content to enter in the suction tube from through hole by layer of sand and discharges.Covering layer of sand and diaphragm seal can reduce cost, and gathers materials on the spot to form enclosure space.According to test, sand layer thickness should be greater than 50cm, and diaphragm seal should extend to layer of sand all around below the gutter 2m.
Also can water discharging body drainage channel and suction tube be connected by horizontal draining board.Cover layer of sand more thereon, on layer of sand, cover 1 to 2 layer of diaphragm seal.Like this, the moisture content in the water discharging body will enter by the drainage channel of horizontal draining board in the suction tube, cover layer of sand and diaphragm seal and can protect pipeline and strengthen sealing.
After the diaphragm seal covering was finished, cladding thickness filled a cubic meter filler again greater than the clay liner of 50cm on clay liner on diaphragm seal.Clay liner is in order to the protection diaphragm seal, prevents that cubic meter filler directly is pressed on the diaphragm seal and causes diaphragm seal to break.Also available sand cushion of clay liner or non-woven geotextile replace.
Open vacuum pump and air compressor air is filled suction before and simultaneously, ground is rolled or the classification piling prepressing with road roller.Roll or the classification piling prepressing in order to provide pressure to soil, make wherein moisture content force to enter in the water discharging body and discharge, further guarantee drainage effect.
The invention has the beneficial effects as follows: adopt not only from water discharging body suction gas but also can import the method for replenishing gas by the plumbing body, the draught head of water discharging body top and the bottom is kept within limits, by forming gas channel air is flowed in drainage system, the ponding that can effectively get rid of the ground depths, reach the purpose of improving drainage effect, easy to use laborsaving, draining is smooth and easy effective, has guaranteed ground processing quality effectively.
[description of drawings]
Fig. 1 is the invention process view.
Fig. 2 is the local enlarged diagram at Figure 1A place.
Fig. 3 is a kind of connected mode schematic diagram of pipe network of the present invention and horizontal draining board.
[specific embodiment]
Enforcement state air flow filling and sucking type foundation draining method as shown in Figure 1, 2, in water discharging body 2, bury the hollow tube contour 4 in advance underground with it, water discharging body 2 can be used existing band drain, and after its core body 14 lower ends are cut off one section hollow tube 4 is exposed, connect auxiliary tool 15 in hollow tube 4 lower ends, again the bottom of filter membrane 16 is tightened or upwards dug and wrap core body 14 lower ends, form a filter membrane bag.Core body 14 can use plastic plate or the plastic wire filament plate that has drainage channel.Drainage channel can be the slit between vertical guide groove or twine on the plastic plate.
Then a plurality of water discharging bodys 2 are vertically inserted in the grounds 1, the 5 formation air inlet pipe networks that link to each other are responsible in the upper end of all water discharging body 2 hollow tubes and air inlet, the upper end of all water discharging body 2 drainage channels is connected with suction tube 6, above-mentioned connection is airtight connection.The suction pipe network links to each other with vacuum pump, and air inlet is responsible for 5 and is connected with atmosphere, and the air inlet person in charge 5 is provided with air pressure regulator 3.
Offer some through holes on the suction tube 6 and outside pipe, coat filter screen, on suction tube 6 and water discharging body 2, cover layer of sand 7 again, on layer of sand 7, cover 1 to 2 layer of diaphragm seal 8 again, water discharging body 2 drainage channels and suction tube 6 are connected by the space in the layer of sand 7.Layer of sand 7 thickness should be greater than 50cm, and the following back of gutter 9 bottom 2m was fixing around diaphragm seal 8 extended to layer of sand.
Water discharging body 2 can adopt to be staggered is responsible for two ends in air inlet, and hollow tube 4 is responsible for 5 by air intake branch 17 and inflation and is linked to each other, and as shown in Figure 3, water discharging body 2 drainage channels and suction tube 6 can be connected by horizontal draining board 18.
On diaphragm seal 8, cover clay liner 10, on clay liner 10, fill cubic meter filler 11 again.Clay liner 10 thickness equally should be greater than 50cm, and cubic metre of earth and stone filler 11 thickness should be greater than 1m.Also available sand cushion of clay liner or non-woven geotextile replace.Open vacuum pump, regulate air pressure regulator 3, air is entered in the water discharging body, make the water discharging body internal gas pressure maintain 0.04-0.06mpa, by the empty G﹠W in the suction tube suction soil, ground is rolled or the classification piling prepressing with road roller simultaneously, the classification piling prepressing is promptly piled successively on cubic metre of earth and stone filler 11 and is added first order preloading 12, second level preloading 13 etc., reaches the purpose of effective draining.
Claims (10)
1, air flow filling and sucking type foundation draining method is characterized in that it may further comprise the steps:
A, in advance at least one vertical hollow tube (4) be set in having the water discharging body of drainage channel (2);
B, the water discharging body (2) of the vertical hollow tube of described band is inserted ground (1);
C, ground is exerted pressure;
D, air imported water discharging body from hollow tube in, and from the drainage channel upper end suction air of water discharging body (2), guiding ground water is along water discharging body (2) row earthward.
2, air flow filling and sucking type foundation draining method according to claim 1, it is characterized in that water discharging body (2) comprises outer filter membrane (16) that covers and built-in core body (14), before being inserted into ground, core body (14) lower end with water discharging body (2) cuts off one section earlier, hollow tube (4) lower end is exposed, again filter membrane (16) bottom is tightened or upwards dug and wrap core body (14) lower end, form a filter membrane bag.
3, air flow filling and sucking type foundation draining method according to claim 2, it is characterized in that a plurality of water discharging bodys (2) are inserted ground, and (5) are responsible in the upper end of all water discharging body hollow tubes and an air inlet are linked to each other and form the air inlet pipe network, the upper end of all water discharging bodys (2) drainage channel is connected with a suction tube (6), connects the auxiliary tool (15) that is used to increase orifice area in hollow tube (4) lower end.
4, air flow filling and sucking type foundation draining method according to claim 3 is characterized in that suction tube (6) is linked to each other with a vacuum pump, and air inlet is responsible for (5) and then is connected with atmosphere, and described air inlet is responsible for (5) and is provided with air pressure regulator (3).
5, air flow filling and sucking type foundation draining method according to claim 4, it is characterized in that water discharging body (2) drainage channel and suction tube (6) are connected in the following way: offer some through holes and outside pipe, coat filter screen at suction tube (6), go up covering layer of sand (7) at suction tube (6) and water discharging body (2), go up at layer of sand (7) again and cover 1 to 2 layer of diaphragm seal (8), water discharging body (2) drainage channel and suction tube (6) are connected by the space in the layer of sand (7).
6, air flow filling and sucking type foundation draining method according to claim 5 is characterized in that described layer of sand (7) thickness greater than 50cm, and described diaphragm seal (8) extends to layer of sand (7) gutter (9) below the 2m all around.
7, air flow filling and sucking type foundation draining method according to claim 4 is characterized in that water discharging body (2) drainage channel and suction tube (6) are connected by horizontal draining board (18).
8, air flow filling and sucking type foundation draining method according to claim 7 is characterized in that covering layer of sand (7) thereon after water discharging body (2) and suction tube (6) are connected, and goes up at layer of sand (7) and covers 1 to 2 layer of diaphragm seal (8).
9,, it is characterized in that cladding thickness fills a cubic meter filler (11) again greater than the clay liner (10) of 50cm on clay liner on diaphragm seal after diaphragm seal (8) covering is finished according to claim 5 or 6 or 8 described air flow filling and sucking type foundation draining methods.
10, air flow filling and sucking type foundation draining method according to claim 9 is characterized in that ground being rolled or the classification piling prepressing with road roller when opening vacuum pump air is aspirated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101548589A CN100532730C (en) | 2006-11-26 | 2006-11-26 | Air flow filling and sucking type foundation draining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101548589A CN100532730C (en) | 2006-11-26 | 2006-11-26 | Air flow filling and sucking type foundation draining method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101191329A CN101191329A (en) | 2008-06-04 |
| CN100532730C true CN100532730C (en) | 2009-08-26 |
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| CNB2006101548589A Expired - Fee Related CN100532730C (en) | 2006-11-26 | 2006-11-26 | Air flow filling and sucking type foundation draining method |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061691B (en) * | 2009-11-12 | 2012-12-19 | 任再永 | Construction method for treating foundation through filling by adopting draining pile tubes |
| CN101736734B (en) * | 2009-12-31 | 2014-02-26 | 郭艳景 | Quick strengthening method of extremely soft sludge |
| CN102888833A (en) * | 2011-12-29 | 2013-01-23 | 中国建筑第四工程局有限公司 | Method for reinforcing soft ground by combining vacuum preloading and surcharge vibration rolling |
| CN103866757B (en) * | 2014-04-10 | 2015-10-14 | 宜兴市良旭焊接瓷件有限公司 | The method of soil water desorption mummification or solidification |
| CN105220678A (en) * | 2015-09-15 | 2016-01-06 | 浙江开天工程技术有限公司 | A kind of processing method of soil body sclerosis |
| CN106013044A (en) * | 2016-05-24 | 2016-10-12 | 江苏鸿基水利建设工程有限公司 | Air impacting drainage and double-faced vacuum preloading consolidation method of deep soft soil foundation |
| CN107606375A (en) * | 2017-09-04 | 2018-01-19 | 无锡市永兴金属软管有限公司 | It is a kind of can assisted drainage metal hose |
| CN108894207A (en) * | 2018-07-27 | 2018-11-27 | 湖南宏禹工程集团有限公司 | The method of extrusion drainage device and reinforcing soft ground for reinforcing soft ground |
| CN110984122A (en) * | 2019-11-25 | 2020-04-10 | 浙江大学 | Vacuum preloading device and method for enhancing drainage function |
| CN114960989A (en) * | 2021-02-24 | 2022-08-30 | 李诗浩 | Drainage structures for building |
| CN112808760B (en) * | 2021-03-09 | 2022-04-15 | 河北民族师范学院 | Polluted soil in-situ leaching remediation method based on bionic transpiration |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1624252A (en) * | 2004-09-10 | 2005-06-08 | 任再永 | Vacuum net water suction method and special water drainage board |
| CN1664245A (en) * | 2005-04-01 | 2005-09-07 | 东南大学 | Operation method for consolidating soft soil foundation by pneumatic flerry vacuum preloading method |
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2006
- 2006-11-26 CN CNB2006101548589A patent/CN100532730C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1624252A (en) * | 2004-09-10 | 2005-06-08 | 任再永 | Vacuum net water suction method and special water drainage board |
| CN1664245A (en) * | 2005-04-01 | 2005-09-07 | 东南大学 | Operation method for consolidating soft soil foundation by pneumatic flerry vacuum preloading method |
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| CN101191329A (en) | 2008-06-04 |
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| C14 | Grant of patent or utility model | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Binwang Engineering Materials Co. Ltd. Assignor: Ren Zaiyong Contract fulfillment period: 2009.10.9 to 2015.10.8 Contract record no.: 2009330002713 Denomination of invention: Air flow filling and sucking type foundation draining method Granted publication date: 20090826 License type: Exclusive license Record date: 20091030 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.10.9 TO 2015.10.8; CHANGE OF CONTRACT Name of requester: ZHEJIANG BINWANG ENGINEERING MATERIALS CO., LTD. Effective date: 20091030 |
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Owner name: ZHEJIANG BINWANG ENGINEERING MATERIAL CO., LTD. Free format text: FORMER OWNER: REN ZAIYONG Effective date: 20120627 |
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Effective date of registration: 20120627 Address after: 318020 0576-84315187, Taizhou, Zhejiang Patentee after: Zhejiang Binwang Engineering Materials Co. Ltd. Address before: Taizhou City, Zhejiang province Chengjiang 318020 Town Industrial Zone Huangyan District Zhejiang Binwang Engineering Materials Co. Ltd. Patentee before: Ren Zaiyong |
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Granted publication date: 20090826 Termination date: 20181126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |