CN2070773U - High pressure water injuctor for pile static pressing machine - Google Patents
High pressure water injuctor for pile static pressing machine Download PDFInfo
- Publication number
- CN2070773U CN2070773U CN 90216465 CN90216465U CN2070773U CN 2070773 U CN2070773 U CN 2070773U CN 90216465 CN90216465 CN 90216465 CN 90216465 U CN90216465 U CN 90216465U CN 2070773 U CN2070773 U CN 2070773U
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- CN
- China
- Prior art keywords
- pile
- pressing machine
- pressure water
- static
- stake
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a high-pressure water jetting device for a static pile pressing machine, comprising a high-pressure water feeding system, a holed preset pile (8) and a reverse-jet type pile tip (7). High-pressure water enters the pile tip (7) from the water-through hole at the center of the holed preset pile (8), and then jets out from the reverse-jet holes of the wall surfaces of the periphery of the pile tip after the distribution of a ball-shaped flow distributing cavity (16) arranged at the middle of the pile tip; the cutting force and counteracting force of the high-pressure flow guides a pile body to sink; with high efficiency and time saving function, the high-pressure water jetting device enhances the penetration ability of the static pile pressing machine, and widens the using field and range of the static pile pressing machine. As a thorough innovation of the static pile pressing machine, the utility model can be widely used in the construction engineering of pile driving.
Description
The utility model relates to a kind of building machinery, the water jetting at high pressure device on particularly a kind of static pile press.
Modern architecture industry pile works, the all-hydraulic silent piling new technology of a large amount of employings, the static pressure construction method is to use electronic whole hydraulic static pile pressing machine, to give the system reinforced concrete pile by the thrust of stake Oil cylinder generation is pressed into underground reposefully, compare with the hammering stake, silent piling has the work efficiency height, and expense is low, shockproof, advantages such as noiselessness.But, because static pressure construction, be by the fuselage deadweight dead load, pile cutoff is pressed in the soil reposefully, and minimum to the disturbance of soil layer, therefore be difficult to penetrate thicker layer of sand, just now, maximum type 160 type pilings, if below the face of land tens meters P
SValue reaches 30kg/cm
2Above flour sand layer, just can only enter 1-3 rice, and in fact, various places have a large amount of requirement of engineering to penetrate more than 3 meters even more than 10 meter burning into sand layer, better bearing stratum below entering, so, allow the stake point enter darker flour sand layer and to improve bearing capacity of single pile, be that silent piling technology is impacted the forbidden zone, enlarge the effective way of boundary of works area.
How to allow a bar enter the flour sand layer with comparalive ease? the utility model is this difficult problem of solution and proposes.
Total design philosophy is like this, make one group of system of giving with holes (8), the central authorities of this stake give and are shaped on a limbers, the stake point is a steel-casting, it is a kind of specially designed reflection-type stake point, have reflection hole (17) on the wall around this point, water under high pressure enters reflection-type stake point (7) by limbers of giving system bar (8) central authorities with holes, spray from its reflection hole (17) then, destroy stake point layer of sand on every side, and utilize the reaction force guiding pile body of water under high pressure to sink, thereby reach the purpose that penetrates dark layer of sand.
Described water jetting at high pressure device is not changed original static pile press system, but its penetration capacity is strengthened greatly, the use field and the scope of static pile press have been widened, having reduced the piling expense, shortened the piling cycle, is a kind of thorough reform to static pile press.
Fig. 1 is described utility model overall structure schematic diagram.(1) water under high pressure that it extrudes high-pressure hydraulic pump (6) for high-pressure hose is introduced the system stake (8) of giving with holes among the figure; (2) be the pile press master cylinder, (3) are the pile press clamping beam, and (4) are pump motor, and (5) are buffer tank, and (6) are high-pressure hydraulic pump, and (7) are reflection-type stake point, and (8) make stake for holes giving, and (14) are underground flour sand layer.
Fig. 2 is described utility model water jetting at high pressure principle schematic.(5) are buffer tank among the figure, and (6) are high-pressure hydraulic pump, and (9) are ball valve, and (10) are safety valve, and (11) are water pressure gauge, and (12) end valve for carrying.It more than is the high-pressure feed water system; (2) be the pile press master cylinder, (3) are the pile press clamping beam, and (8) make stake for holes giving, and (7) are reflection-type stake point, and (18) are pile press clamping oil cylinder, in order to clamping stake bar.
Fig. 3 is a reflection-type stake point structural representation.(15) are the sharp inlet opening of stake among the figure, and (16) are ball-type current distribution cavity.(17) be reflection hole, (18) are the stake point.Reflection-type stake point (7) is a cone, have inlet opening (15) at its afterbody, there is a ball-type current distribution cavity (16) at the position therebetween, has towards the reflection hole (17) of stake point (7) caudal directions on the wall around this cavity, and stake point (18) is a solid.
The water-feeding pressure of high pressure water system can be (10～80) kg/cm
2, the aperture of the sharp reflection hole of stake (17), angle of reflection can be according to the design bearing capacity of stake, embedded depth and on-the-spot soil property change, and design (can become series of products), and the size of hydraulic pressure should be decided on concrete condition of construction, the stake point can be cone, also can be pyramid, should bore the stake shape and decide.
Claims (1)
- Water jetting at high pressure device on a kind of static pile press.Comprise a bar, stake point, it is characterized in that: described stake bar is that a kind of central authorities give the system of giving with holes (8) that is shaped on a limbers; Described stake point (7) is a kind of reflection-type stake point.It is a cone, has inlet opening (15) at its afterbody, and there is a ball-type current distribution cavity (18) at the position therebetween.Have on the wall around this cavity and face a reflection hole (17) of sharp (7) caudal directions, stake point (18) is a solid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90216465 CN2070773U (en) | 1990-07-16 | 1990-07-16 | High pressure water injuctor for pile static pressing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90216465 CN2070773U (en) | 1990-07-16 | 1990-07-16 | High pressure water injuctor for pile static pressing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2070773U true CN2070773U (en) | 1991-02-06 |
Family
ID=4895618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90216465 Expired - Lifetime CN2070773U (en) | 1990-07-16 | 1990-07-16 | High pressure water injuctor for pile static pressing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2070773U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400467A (en) * | 2011-11-22 | 2012-04-04 | 中铁三局集团第六工程有限公司 | Construction method of cofferdam with steel sheet piles inserted and driven under assistance of high-pressure water injection |
| CN109778857A (en) * | 2018-11-30 | 2019-05-21 | 北京荣创岩土工程股份有限公司 | A kind of prefabricated pile is from pilot hole device and prefabricated pile from pilot hole pile making method |
-
1990
- 1990-07-16 CN CN 90216465 patent/CN2070773U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400467A (en) * | 2011-11-22 | 2012-04-04 | 中铁三局集团第六工程有限公司 | Construction method of cofferdam with steel sheet piles inserted and driven under assistance of high-pressure water injection |
| CN109778857A (en) * | 2018-11-30 | 2019-05-21 | 北京荣创岩土工程股份有限公司 | A kind of prefabricated pile is from pilot hole device and prefabricated pile from pilot hole pile making method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |