CN1084599A - A kind of drainage pile and drainage and construction method thereof - Google Patents
A kind of drainage pile and drainage and construction method thereof Download PDFInfo
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- CN1084599A CN1084599A CN 93100111 CN93100111A CN1084599A CN 1084599 A CN1084599 A CN 1084599A CN 93100111 CN93100111 CN 93100111 CN 93100111 A CN93100111 A CN 93100111A CN 1084599 A CN1084599 A CN 1084599A
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Abstract
A kind of drainage pile and drainage and construction method thereof, wall has the permeable composite earthwork material of groove and band drain or other around the said pile body, vertical tube and transverse tube that connection is arranged in the pile body, there is pervious concrete the vertical tube lower end, this pile body can make underground pore water discharge by various pipeline channels in pile driving process, go the airtight connection of pipeline between each behind the pile sinking again,, underground pore water is further discharged by making the pipe network negative pressure.Superiority of the present invention is: 1, pile body is simple in structure, is easy to make and guarantee strength of pile body; 2, improved the physico-mechanical properties of stake week soil; 3, the raw material and the engineering quantity of system stake have been reduced; 4, improved pile sinking speed.
Description
The invention belongs to the drainage pile of use in the Design of Soft Soil construction and the job practices of draining thereof.
At present, the full water soft foundation that runs in the construction, usually can not satisfy the requirement of engineering construction to foundation deformation and intensity, therefore must carry out artificial treatment, and, then adopt general method for processing foundation when soft thicker soil or when being positioned under water, not only unreasonable economically, and technically also have any problem, therefore, usually adopt pile foundation.Though adopt pile foundation energy engineering demands, but still there are some problems technically, because reaching, the stake point do not bury darker hard soil layer as (1), so stake is gone up load and is mainly supported by the frictional force between stake week and the soil, so more for satisfying the then required stake of certain load bearing requirements radical, pile body is longer; (2) stake is squeezed in the soil base and will be occupied certain space, full water soft foundation this space of driving piles can only lean on ground compaction soil to realize, sometimes protuberance is squeezed on ground, and stake is down beaten more, suffered resistance is big more, and its resistance is formed by the very high pore water pressure that is difficult to dissipate; (3) pile body squeeze into and load after, exist the pore water pressure that is difficult to dissipate in full water soft foundation inside, long-time exist, all unfavorable to building and ground safety.For addressing the above problem, once used diameter that increases stake or the mode that changes the shape of stake on the engineering, to improve the bearing capacity of single pile, with the mode of boring " hole " in the construction with facility, help pile body " sanction is gone into " ground, known U.S.PatentJan, 27,1987, Sheet2 of 44,639,168 and the clear 61-113920[of Japan Patent discloses clear and 61 years (1986) Mays 31] etc. all belong to this type, though the disclosed technology of this type of patent can solve and bear certain load, problems such as a draining and a following difficulty, but it is big all still to exist the job practices difficulty, pile body complex structure, or contradiction such as bearing capacity difference.
The objective of the invention is to design the job practices of a kind of drainage pile and draining thereof, it makes under the above-mentioned full water soft foundation of mentioning, and existing problem poor as pile body bearing capacity, that draining is unfavorable and following difficult is all satisfactorily resolved in the pile driving construction, is adoptable desirable approach in the soft soil foundation construction.
Technical scheme of the present invention: a kind of drainage pile, comprise pile body, it is characterized in that said pile body bottom pile crown is a cone shape, be uniform-distribution with the groove that passes through pile lining on the wall around the pile body, there is certain distance on this groove logical stake suitable for reading top or distance stake top, and end opening to pile crown shrinks on the flex point, and the gutter is arranged in the groove, and be installed on band drain or other permeable composite earthwork synthetic materials of permeable hole, be fixed with clothes-hook or fixed band simultaneously; Said pile body central vertical has the vertical setting of types water pipe, it is main drainpipe, vertical setting of types water pipe under shed is to the stake point, go up to turn apart from an a distance, stake top into level to opening, become drinking-water pipe to extracardiac pumping, be provided with many horizontally-arranged water pipes at vertical setting of types water pipe and pile body ditch spacing of tanks certain distance, it is branch drain, transverse tube can be in horizontal direction, and an end communicates with the vertical setting of types water pipe, and the other end is opened on the permeable hole of pile body groove internal drainage plate; The bottom of the vertical setting of types water pipe at said pile body center nearly stake point place's perfusion pervious concrete.Above-mentioned drainage pile can be carried out prefabricated outside the construction site according to designing requirement.After pile body after prefabricated is transported into the building site, at first carry out process for sinking, this technology can be carried out with various pile-sinking method, when running into the pore water pile jacking, carry out natural drainage technology, promptly slow down pile sinking speed, make underground pore water enter the pile body vertical tube by the pervious concrete of vertical tube bottom, enter horizontally-arranged water pipe and vertical setting of types water pipe by band drain or other permeable composite earthwork synthetic materials simultaneously, incremental thus, make pile body sink to design altitude, be that band drain is all imbedded in the soil on the pile body, after treating that whole drainage pile are heavy and finishing, then pipeline connects technology between the row stake, be about to each drinking-water pipe, be connected to main and house steward and form drainage pipeline networks with tube connector sealing, row startup pump for pipe system causes pipe network negative pressure technology more afterwards, promptly start the suction pump that is connected to house steward, make whole pipe network form negative pressure, then the water in the drainage pile vertical tube will enter main and house steward by tube connector, at last by outside the pump main net, this moment, the pipe network negative pressure increased, be passed to vertical setting of types water pipe and horizontally-arranged water pipe always, in groove, make the whole negative pressure state that forms in the stake, in such cases, water in the soil further flows to band drain under the pore water pressure effect outside stake, enter transverse tube and vertical tube, is discharged ground through main and house steward by pump again, the all soil of stake has reduced water content like this and has finished consolidation process, improve native physico-mechanical properties, increased native frictional force, improved the bearing capacity of drainage pile.Above-mentioned drainage pile drainage and construction method can be summarized by following flow process, that is: pile sinking → natural drainage → pile sinking finishes → stake between the airtight connection of pipeline → startups pump for pipe system make drainage by suction in pipe network negative pressure → stake → stake all native fixed → constructing finishes.
The superiority of related drainage pile of the present invention and drainage and construction method is: 1, pile body is simple in structure, makes easily, and can keep the structural strength of pile body; 2, pile body structure and drainage pattern thereof have improved the frictional force and the horizontal force resistant of stake, have also improved the bearing capacity and the stability of stake simultaneously; 3, the raw material and the engineering quantity of system stake have been reduced owing to the prefabrication system of stake; 4, this kind pile body structure has improved pile sinking speed, has saved construction investment.
Further specify present technique below in conjunction with drawings and Examples.
Fig. 1 cuts open structural representation for the related drainage pile pile body of the present invention side.
Fig. 2 is the a-a ' section structure schematic diagram of the related drainage pile pile body of the present invention Fig. 1.
Fig. 3 is pipeline structure schematic diagram in the related drainage pile stake of the present invention.
Fig. 4 is the fixed band structural representation of band drain on the related drainage pile of the present invention.
Fig. 5 is the full-page proof structural representation (side is cutd open) of the groove of the related drainage pile pile body of the present invention and interior band drain thereof.
Fig. 6 is the Facad structure schematic diagram of the groove internal drainage plate of the related drainage pile pile body of the present invention.
Fig. 7 is the drainage construction process schematic representation of the related drainage pile of the present invention.
Fig. 8 is the process chart of the drainage and construction method of the related drainage pile of the present invention.
Wherein 1 is pile body, and 2 is the vertical setting of types water pipe, and 3 is the horizontally-arranged water pipe, and 4 is band drain, 5 is groove, 5 ' be the gutter in the groove, 6 is fixed band, 6 ' be clothes-hook, 7 is pervious concrete, and 8 is the stake point, and 9 is drinking-water pipe, and 10 is main, 11 is interface tube, and 12 is tube connector, and 13 is house steward, 14 is pump, and 15 is the band drain wing, and 16 is permeable hole, 17 is interconnection, and 18 is the acrylic nonwoven, and 19 is ground.
Embodiment: a kind of drainage pile (is seen Fig. 1,2,3), comprise pile body 1, it is characterized in that said pile body bottom pile crown is a cone shape, be uniform-distribution with the groove 5 that passes through pile lining on the wall around the pile body, this groove is suitable for reading apart from stake top certain distance, end opening to pile crown shrinks 30cm place on the flex point, ditch groove width 3cm, dark 2cm, have in the groove gutter 5 ', being close to groove has one deck acrylic nonwoven 18(to see Fig. 5,6), amplexiform mutually with nonwoven and be band drain 4, band drain still amplexiforms one deck acrylic nonwoven outward, wear a permeable hole 16 every 1m on the said band drain, and the band drain wing 15 perpendicular to the plate face is still arranged on the plate, the plate wing of permeable hole both sides is removed and is stayed the interconnection 17 that can link up the water of whole vertical passages, fixedly band drain is with giving clothes-hook 6 ' (or the using fixed band 6) of burying in the groove, and pitch of nails can be 1m; Said pile body central vertical has vertical setting of types water pipe 2, vertical setting of types water pipe under shed is to stake point 8, go up to turning apart from 50cm place, stake top to level and become drinking-water pipe 9 to extracardiac pumping to opening, drinking-water pipe laterally goes out a 20cm, be provided with many horizontally-arranged water pipes 3 at vertical setting of types water pipe and pile body ditch spacing of tanks 1m distance, its caliber can be 10mm, and transverse tube in horizontal direction, one end communicates with the vertical setting of types water pipe, and the other end is opened on the permeable hole 16 of pile body groove internal drainage plate; The bottom of the vertical setting of types water pipe at said pile body center is in the above 100cm of stake point place perfusion pervious concrete 7.Above-mentioned drainage pile can be carried out prefabricated outside the construction site according to designing requirement.After pile body after prefabricated is transported into the building site, at first carry out process for sinking, this technology can be carried out with various pile-sinking method, when running into the pore water pile jacking, carry out natural drainage technology, promptly slow down pile sinking speed, leave pore water for and enter time of gutter, make underground pore water enter the pile body vertical tube by the pervious concrete of vertical tube bottom, enter band drain in the pile body groove by nonwoven simultaneously, and the permeable hole by band drain enters horizontally-arranged water pipe and vertical setting of types water pipe, and is incremental thus, makes pile body sink to design altitude, after treating that whole drainage pile are heavy and having finished, then pipeline connects technology between row stake, is about to each drinking-water pipe 9 usefulness tube connectors 12 sealing and is connected to main 10 and house steward 13 and forms the drainage pipeline networks (see figure 7), and row startup pump for pipe system causes pipe network negative pressure technology more afterwards, start the suction pump 14 that is connected to house steward, make whole pipe network form negative pressure, then the water in the drainage pile vertical tube will enter main and house steward by tube connector, at last by outside the pump main net; This moment, the pipe network negative pressure increased, and was passed to vertical setting of types water pipe and horizontally-arranged water pipe, in groove always, make the whole negative pressure state that forms in the stake, in such cases, the water in the soil further flows to band drain under the pore water pressure effect outside stake, enter transverse tube and vertical tube, discharged ground through main and house steward by pump again, the all soil of stake has reduced water content, has finished consolidation process, has improved native physico-mechanical properties, increase native frictional force, improved the bearing capacity of stake; Then construction finishes at last.
Described pile body can be drawn materials and is steel concrete, the also desirable nonmetals of all kinds of tubing available metal materials.
Claims (2)
1, a kind of drainage pile, comprise pile body, it is characterized in that said pile body bottom pile crown is a cone shape, be uniform-distribution with the groove that passes through pile lining on the wall around the pile body, there is certain distance on this groove logical stake suitable for reading top or distance stake top, and end opening to pile crown shrinks on the flex point, and the gutter is arranged in the groove, and be installed on band drain or other permeable composite earthwork synthetic materials of permeable hole, be fixed with clothes-hook or fixed band simultaneously; Said pile body central vertical has the vertical setting of types water pipe, it is main drainpipe, vertical setting of types water pipe under shed is to the stake point, go up to turn apart from an a distance, stake top into level to opening, become drinking-water pipe to extracardiac pumping, be provided with many horizontally-arranged water pipes at vertical setting of types water pipe and pile body ditch spacing of tanks certain distance, it is branch drain, transverse tube can be in horizontal direction, and an end communicates with the vertical setting of types water pipe, and the other end is opened on the permeable hole of pile body groove internal drainage plate; The bottom of the vertical setting of types water pipe at said pile body center nearly stake point place's perfusion pervious concrete.
2, drainage and construction method by the described drainage pile of claim 1, it is characterized in that it be by pile sinking → natural drainage → pile sinking finish → stake between the airtight connection of pipeline → startups pump for pipe system make drainage by suction in pipe network negative pressure → stake → stake all native fixed → technological process that finishes of constructing realizes, carry out process for sinking headed by the detailed process earlier, this technology can be carried out with various pile-sinking method, when running into the pore water pile jacking, carry out natural drainage technology, promptly slow down pile sinking speed, make underground pore water enter the pile body vertical tube by the pervious concrete of vertical tube bottom, enter horizontally-arranged water pipe and vertical setting of types water pipe by band drain or other permeable composite earthwork synthetic materials simultaneously, incremental thus, make pile body sink to design altitude, be on the pile body band drain all imbed treat in the soil that whole drainage pile are heavy and finish after, then pipeline connects technology between the row stake, be about to each drinking-water pipe, be connected to main and house steward and form drainage pipeline networks with tube connector sealing, row startup pump for pipe system causes pipe network negative pressure technology more afterwards, promptly start the suction pump that is connected to house steward, make whole pipe network form negative pressure, then the water in the drainage pile vertical tube will enter main and house steward by tube connector, at last by outside the pump main net, this moment, the pipe network negative pressure increased, be passed to vertical setting of types water pipe and horizontally-arranged water pipe always, in groove, make the whole negative pressure state that forms in the stake, in such cases, water in the soil further flows to band drain under the pore water pressure effect outside stake, enter transverse tube and vertical tube, discharged ground through main and house steward by pump again, the all soil of stake has reduced water content like this and has finished consolidation process, and promptly construction finishes at last.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93100111 CN1084599A (en) | 1993-02-06 | 1993-02-06 | A kind of drainage pile and drainage and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93100111 CN1084599A (en) | 1993-02-06 | 1993-02-06 | A kind of drainage pile and drainage and construction method thereof |
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| CN1084599A true CN1084599A (en) | 1994-03-30 |
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| CN 93100111 Pending CN1084599A (en) | 1993-02-06 | 1993-02-06 | A kind of drainage pile and drainage and construction method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1873108B (en) * | 2006-06-30 | 2010-08-25 | 贵阳铝镁设计研究院 | Pressure hydro consolidation method of airtight vacuum membrane for loess foundation in collapsibility |
| CN102061691B (en) * | 2009-11-12 | 2012-12-19 | 任再永 | Construction method for treating foundation through filling by adopting draining pile tubes |
| CN108018850A (en) * | 2017-12-22 | 2018-05-11 | 深圳职业技术学院 | A kind of reinforced soft soil ground device |
| CN111691394A (en) * | 2020-05-19 | 2020-09-22 | 宁波大学 | Pile end soil body reinforcing system |
| CN112095634A (en) * | 2020-09-03 | 2020-12-18 | 三峡大学 | Anchor rod pile plate retaining wall combination device and construction method |
-
1993
- 1993-02-06 CN CN 93100111 patent/CN1084599A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1873108B (en) * | 2006-06-30 | 2010-08-25 | 贵阳铝镁设计研究院 | Pressure hydro consolidation method of airtight vacuum membrane for loess foundation in collapsibility |
| CN102061691B (en) * | 2009-11-12 | 2012-12-19 | 任再永 | Construction method for treating foundation through filling by adopting draining pile tubes |
| CN108018850A (en) * | 2017-12-22 | 2018-05-11 | 深圳职业技术学院 | A kind of reinforced soft soil ground device |
| CN111691394A (en) * | 2020-05-19 | 2020-09-22 | 宁波大学 | Pile end soil body reinforcing system |
| CN112095634A (en) * | 2020-09-03 | 2020-12-18 | 三峡大学 | Anchor rod pile plate retaining wall combination device and construction method |
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