CN103603335A - Winged shelter steel-pipe pile capable of reducing influence of soil surface loading to adjacent pile foundations - Google Patents
Winged shelter steel-pipe pile capable of reducing influence of soil surface loading to adjacent pile foundations Download PDFInfo
- Publication number
- CN103603335A CN103603335A CN201310549637.1A CN201310549637A CN103603335A CN 103603335 A CN103603335 A CN 103603335A CN 201310549637 A CN201310549637 A CN 201310549637A CN 103603335 A CN103603335 A CN 103603335A
- Authority
- CN
- China
- Prior art keywords
- pile
- steel
- steel pipe
- pipe pile
- grouting
- 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.)
- Pending
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a winged shelter steel-pipe pile capable of reducing influence of soil surface surcharge loading to adjacent pile foundations. The winged shelter steel-pipe pile comprises a steel-pipe pile, wings, brace steel plates, grouting ducts and a sealing steel plate. The wings are arranged on two sides of the steel-pipe pile and symmetrically vertically connected to the outer wall of the steel-pipe pile; the sealing steel plate is disposed near the end of the steel-pipe pile and connected with the inner wall of the steel-pipe pile; the grouting ducts are distributed on the inner wall of the steel-pipe pile along the circumference uniformly, with the tops flush with the steel-pipe pile and the bottoms extend out of the sealing steel plate slightly. The wings arranged on the two sides of the steel-pipe pile bear more action of the oil surface surcharge loading; the own bearing capacity of the steel-pipe pile can be improved by grouting at the pile end, pile body settlement can be controlled, and transmission of surcharge loading additional stress in foundation soil can be blocked effectively, and the purpose of reducing actions of horizontal thrust and negative friction of the soil surface surcharge loading to the adjacent existing engineering pile foundations can be achieved.
Description
Technical field
The invention belongs to pile foundation engineering technique field, relate to the preloading of soil table to closing on the partition method of structure pile foundation impact, and the optimal design of steel pipe isolation pile.
Technical background
It is more common load form that soil table large area heap is loaded in Practical Project.If being weak soil and other, engineering ground there is larger constrictive foundation soil, foundation soil body can produce larger sedimentation under large area Loading, when foundation soil body Vertical Settlement is greater than after the pile foundation settlement of influence area, place, can cause the negative friction effect of pile foundation.Pile foundation will cause pile body axle power, pile foundation settlement to increase under negative friction effect, cause the serious consequences such as pile strength destruction, bearing course at pile end destruction and superstructure differential settlement destruction when serious.If preloading is distributed in pile foundation when one-sided, except pile foundation being produced to vertical negative friction effect, the level that also can produce, to thrust, produces more adverse influence so.These are comparatively common in current engineering to the adverse effect of pile foundation, for example, one-sided man-made island preloading to immersed tube at the bottom of the effect, embankment embankment of pile foundation to the effect of piles, goods preloading to the effect of Pile Foundation of Wharf etc.Pile foundation mitigation control measure under research soil table Loading are of universal significance, and significant for engineering safety.
Since 20th century, proposed pile foundation negative friction force concept the thirties, how to reduce the negative friction of large area Loading on pile body is the focus that engineering circles, academia pay close attention to always.Pile foundation negative friction force method for reducing has coating, tiretube process, soil removal and replacement displacement method, isolation pile method at present, wherein comparatively conventional with bituminous coating method.Yet there is inherent shortcoming in bituminous coating method: the chemical composition of bituminous material itself easily pollutes underground water in Underground Long-term use procedure; And bituminous coating is affected obviously by the factors such as temperature, time on reducing the effect of negative friction impact.Owing to still take reinforced concrete pile as main in China's pile foundation use, the main method of bituminous coating will be applicable to steel pipe pile, and engineering is promoted few.Isolation pile method is arranged extra some pile foundations between preloading and engineering pile foundation, and the subsidiary stress of the engineering pile foundation surrounding soil causing by formation capture-effect reduction preloading, realizes the object that reduces the effect of engineering pile foundation negative friction.The method is compared bituminous coating method, environment friendly and pollution-free; Relative internal and external casing method, the requirement of making, constructing is lower; Without the soil body is processed, avoid further welding.Isolation pile method is owing to more meeting the environmental protection that people improve day by day, energy-conservation idea.
In order further to improve the isolation effect of isolation pile, isolation effect to engineering pile foundation horizontal thrust and negative friction while particularly strengthening native list side preloading, proposed to add gap from piling method, and the operating mode existing prior to the preloading of soil table for engineering pile foundation, has proposed to add wing isolation pile with pile end grouting function.This adds wing isolation pile main body is steel pipe pile, at the pile body outer wall of near surface, wing plate is set, and stake end is the setting of remaining silent, and in pile body, can bury grouting pipe underground.
This adds wing isolation pile aspect isolation negative friction, long-pending because wing plate has increased the stake soil contact face of negative friction effect pile cutoff, makes isolation pile bear more negative frictions, thereby effectively reduces and act on the negative friction on engineering pile foundation.Aspect level of isolation thrust, because wing plate obtains more side horizontal soil drags, simultaneously increased to a certain extent pile body stiffness, contributed to control isolation pile distortion, make isolation pile bear more multilevel thrust reaching the object that further minimizing acts on horizontal thrust on engineering pile foundation.Providing under the condition of identical pile foundation level load-carrying properties, comparing conventionally the long method that increases stake footpath of full stake, nearly soil table stake side arranges wing plate and can more economize pile shaft material.Pile end grouting can be the end resistance of the unfavorable condition raising isolation pile of bearing course at pile end, by controlling the sedimentation of isolation pile pile body, the generation of the native relative displacement of restriction stake, and then the detrimental effect that reduces preloading load propagates to engineering pile, promotes the isolation effect of common isolation pile.
Add wing steel pipe isolation pile by bearing the effect of more soil tables preloading, and the method that can adopt pile end grouting improves self load-carrying properties, controls pile body sedimentation, thereby effectively intercept the propagation of soil table preloading subsidiary stress in foundation soil body, reach and reduce the object of soil table preloading to engineering pile foundation horizontal thrust, negative friction effect.Compare common isolation pile, nearly soil table stake side arranges wing plate and has effectively improved single pile isolation effect, therefore in Practical Project, can suitably increase the pile spacing of isolation pile, thereby effectively reduce the use amount of isolation pile, reduces construction investment.
Summary of the invention
technical problem:technical problem solved by the invention is to provide a kind of method of soil table large area preloading to Adjacent Pile Foundation adverse effect of subduing.By arrange some equidistant distributions with pile end grouting function add wing steel pipe isolation pile, effectively subdue pile foundation negative friction force effect and horizontal thrust effect that preloading causes, guarantee that engineering pile foundation possesses good service behaviour and security performance.
technical scheme:the present invention is achieved through the following technical solutions: a kind of reduce the preloading of soil table on Adjacent Pile Foundation impact add wing steel pipe isolation pile, it is characterized in that isolation pile is driven pile, isolation pile pile body main body is steel pipe pile, near surface pile body periphery is provided with vertical wing plate.Wing plate is plain plate.Remarkable and the poor situation of bearing course at pile end for preloading impact, steel pipe pile inside is provided for the grouting pipe of pile end grouting.
Described to add wing steel pipe isolation pile main body be steel pipe pile, and its external diameter is 600～2000mm, and wall thickness is 10～30mm.Stake is long to be designed according to the actual geological condition of engineering, and stake end should be arranged on good bearing stratum.For increasing end resistance, the soil plug effect based on squeezing into steel pipe pile is considered simultaneously, is being that 1～2D(D is stake external diameter according to stake end) locate to arrange back cover steel plate, back cover steel plate external diameter is slightly less than steel pipe pile internal diameter, is welded in steel pipe pile inwall.
Described wing plate is made by plain plate, and thickness is >=20mm, is highly 1～3D, and width is 0.5～1.5D.Wing plate is along the symmetrical vertically layout of stake periphery, and single steel pipe pile wing plate used is 2 or 4, the vertical soil table preloading of wing plate place plane or the place plane of symmetry and engineering pile foundation line direction.For guaranteeing resistance capacity to deformation, when wing plate width is 1～1.5D, the form that two blocks of wing plates of the one-sided employing of steel pipe pile form wedge is connected with steel pipe pile outer wall, and steel plate angle gets 10
o; When wing plate width is 0.5～1D, wing plate of the one-sided employing of steel pipe pile, is connected with steel pipe pile outer wall and diagonal brace steel plate is set.Wing plate adopts the mode of welding to be fixed on steel pipe pile outer wall both sides, before being connected, needs welding position to clear up with steel pipe pile outer wall, guarantees welding quality.
Described grouting pipe is steel pipe, and conduit bottom is furnished with grouting valve, and conduit is welded on steel pipe pile inwall, and grouting pipe arranges according to stake footpath size.For diameter, be not more than the stake of 1200mm, along circumference, be symmetrical arranged 2; For diameter, be greater than the stake of 1200mm, be symmetrical arranged 4.Grouting pipe is concordant with pile lining in position, stake top.It is 50mm that grouting pipe bottom is stretched out stake end back cover steel plate long.Pile end grouting should be controlled according to total grouting amount and grouting pressure.Grouting amount is got cement quality 1.5D t.For saturated soil, the water/binder ratio of slurries is 0.45～0.65; For unsaturated soil, the water/binder ratio of slurries is that the loose gravelly soil of 0.7～0.9(, gravel are 0.5～0.6); Low water-cement ratio slurries should mix water reducing agent.For decomposed rock, unsaturated clay and silt, grouting pressure is 3 ~ 6Mpa; For saturated soil layer grouting pressure, be 1.2 ~ 3MPa; Weak soil is got low value, and closely knit cohesive soil is got high value.Flow rate of grouting is no more than 75L/min.
The described wing steel pipe isolation pile that adds arranges distance for 5D ~ 3D apart from engineering pile, and longitudinal pitch is 6D ~ 12D.
beneficial effect:compared with prior art, the present invention has following beneficial effect:
1. the horizontal thrust effect to engineering pile for side soil table preloading, because stake side is provided with vertical wing plate, compare common pile foundation, add the footprint that wing isolation pile expands soil body lateral displacement, and strengthened to a certain extent the native bending rigidity of stake, can bear the effect of more horizontal thrust.Owing to adding wing isolation pile, there is the stronger service behaviour of bearing horizontal thrust, therefore can obviously reduce the horizontal force acting on engineering pile, have than the more significant horizontal thrust isolation effect of common isolation pile.
2. the negative friction effect to engineering pile for side soil table preloading, because stake side is provided with vertical wing plate, compares common pile foundation, adds wing isolation pile expansion stake soil contact face long-pending, can bear more negative friction effect.Owing to adding wing isolation pile, there is the stronger service behaviour of obtaining negative friction, therefore can obviously reduce the negative friction acting on engineering pile, have than the more significant negative friction isolation effect of common isolation pile.
3. of the present inventionly add wing isolation pile stake end sealing and there is pile end grouting function.For the poor situation of isolation pile bearing course at pile end, by pile end grouting, can effectively promote isolation pile Vertical Bearing Capacity, to level, to load-carrying properties, also can necessarily be promoted.The lifting of isolation pile load-carrying properties can effectively limit the soil body displacement between isolation pile and engineering pile, and then promotes isolation effect.
4. compare common isolation pile, proposed by the invention with pile end grouting function, add wing isolation pile owing to effectively having improved single pile isolation effect, therefore in Practical Project, can suitably increase the pile spacing of isolation pile, thereby effectively reduce the usage quantity of isolation pile, reduce construction investment, there is significant economic benefit.
5. providing under the condition of identical pile foundation level load-carrying properties, compare the long stake footpath that increases of conventional full stake to promote the method for pile foundation level bearing capacity, proposed by the invention with pile end grouting function add wing isolation pile, only in a nearly soil table stake side, wing plate is set and can more saves pile shaft material.
Accompanying drawing explanation
Fig. 1 be band slip casting function of the present invention add wing steel pipe isolation pile.
Fig. 2 is the top view that adds wing steel pipe isolation pile of band slip casting function of the present invention.The top view that adds wing steel pipe pile when wherein scheming a and being the wide 1～1.5D of being of wing plate; Figure b adds the top view of wing steel pipe pile while being the wide 0.5～1D of being of wing plate.
Fig. 3 is the elevation that adds wing steel pipe isolation pile of band slip casting function of the present invention.The elevation that adds wing steel pipe pile when wherein scheming a and being the wide 1～1.5D of being of wing plate; Figure b adds the elevation of wing steel pipe pile while being the wide 0.5～1D of being of wing plate.
Fig. 4 is the lateral view that adds wing steel pipe isolation pile of band slip casting function of the present invention.The lateral view that adds wing steel pipe pile when wherein scheming a and being the wide 1～1.5D of being of wing plate; Figure b adds the lateral view of wing steel pipe pile while being the wide 0.5～1D of being of wing plate.
Fig. 5 is that stake end of the present invention is arranged thin portion drawing
In figure: 1: steel pipe pile; 2: wing plate; 3: grouting pipe; 4: diagonal brace steel plate; 5: back cover steel plate; 6: injection slurry; 7: grouting valve; 8: grouting and reinforcing region; 9: the load action that the preloading of soil table produces.
The specific embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is elaborated.
The described wing steel pipe isolation pile main body that adds with slip casting function of bearing the load action (9) of soil table preloading generation is steel pipe pile (1), and its external diameter is 600～2000mm, and wall thickness is 10～30mm.Stake is long to be designed according to the actual geological condition of engineering, and stake end should be arranged on good bearing stratum.For increasing end resistance, the soil plug effect based on squeezing into steel pipe pile is considered simultaneously, is being that 1～2D(D is stake external diameter according to stake end) locate to arrange back cover steel plate (5), back cover steel plate (5) external diameter is slightly less than steel pipe pile (1) internal diameter, is welded in steel pipe pile (1) inwall.
Described wing plate (2) is made by plain plate, and thickness is >=20mm, is highly 1～3D, and width is 0.5～1.5D.Wing plate (2) is along the symmetrical vertically layout of stake periphery, and single steel pipe pile (1) wing plate used (2) is 2 or 4, the vertical soil table preloading of wing plate (2) place plane or the place plane of symmetry and engineering pile foundation line direction.For guaranteeing resistance capacity to deformation, when wing plate (2) width is 1～1.5D, the form that the one-sided employing of steel pipe pile (1) two sides wing plate (2) forms wedge is connected with steel pipe pile (1) outer wall, and steel plate angle gets 10
o; When wing plate (2) width is 0.5～1D, steel pipe pile (1) wing plate of one-sided employing (2), is connected with steel pipe pile (1) outer wall and diagonal brace steel plate (4) is set.Wing plate (2) adopts the mode of welding to be fixed on steel pipe pile (1) outer wall both sides, before being connected, needs welding position to clear up with steel pipe pile (1) outer wall, guarantees welding quality.
Described grouting pipe (3) is steel pipe, and grouting pipe (3) bottom is furnished with grouting valve (7), and grouting pipe (3) is welded on steel pipe pile (1) inwall, and grouting pipe (3) quantity arranges according to stake footpath size.For diameter, be not more than the stake of 1200mm, along circumference, be symmetrical arranged 2; For diameter, be greater than the stake of 1200mm, be symmetrical arranged 4.Grouting pipe (3) is concordant with pile lining in position, stake top.It is 50mm that grouting pipe (3) bottom is stretched out stake end back cover steel plate (5) long.According to total grouting amount and grouting pressure, control pile end grouting construction.Grouting amount is got cement quality 1.5D t.For saturated soil, the water/binder ratio of slurries is 0.45～0.65; For unsaturated soil, the water/binder ratio of slurries is that the loose gravelly soil of 0.7～0.9(, gravel are 0.5～0.6); Low water-cement ratio slurries should mix water reducing agent.For decomposed rock, unsaturated clay and silt, grouting pressure is 3 ~ 6Mpa; For saturated soil layer grouting pressure, be 1.2 ~ 3MPa; Weak soil is got low value, and closely knit cohesive soil is got high value.Flow rate of grouting is no more than 75L/min.The stake end Stabilizing Grout region (8) forming by pile end grouting.
The described wing steel pipe isolation pile that adds arranges distance for 5D ~ 3D apart from engineering pile, and longitudinal pitch is 6D ~ 12D.
The embodiment of isolation pile provided by the present invention is as follows:
Be positioned at certain construction of tunnel on the man-made island of coastal waters.Its engineering geological conditions be under earth's surface 0 ~ 20 meter for mucky soil, 20 meters is more closely knit sand below.By large area hydraulic reclamation mode, form that to form after marine man-made island ，Zhu island completion high to sea bed mucky soil be the preloading of 10 meters.Now, from excavation seabed, man-made island middle part immersed tube tunnel, immersed tube tunnel bottom adopts pile foundation that vertical supporting is provided, and steel pipe pile top is concordant with sea bed face.Due to the slow consolidation settlement of mucky soil under Loading, by forming the effect to thrust to the negative friction of immersed tube pile foundation and level, for guaranteeing the normal operation of immersed tube tunnel and engineering safety, need be at immersed tube pile foundation arranged outside one row's isolation pile.
Isolation pile adopts the present invention to add wing steel pipe isolation pile.Selecting diameter is 1200mm, the steel pipe pile that wall thickness is 20mm (1), and stake is long is 22.4m, passes through silt soil strata, enters sandy soils 2.4m.
Concrete implementation step is as follows:
1. in the inner distance stake of steel pipe pile (1), hold up 2.4m(2D) position layout back cover steel plate (5).Described back cover steel plate (5) adopts the round plate of thickness 30mm, and external diameter is slightly less than steel pipe pile (1) internal diameter, adopts the mode of welding to be connected with steel pipe pile (1) inwall.
2. a side wing (2) is 3.6m(3D by being of a size of height), wide is 1.80(1.5D) m, thickly make for the steel plate of 20mm.The form that the one-sided employing of steel pipe pile (1) two sides wing plate (2) forms wedge is connected with steel pipe pile (1) outer wall, and steel plate angle gets 10
o.Wing plate is along the symmetrical vertically layout of stake periphery, and wing plate (2) adopts the mode of welding to be fixed on steel pipe pile (1) outer wall both sides, before being connected, needs welding position to clear up with steel pipe pile (1) outer wall, guarantees welding quality.
3. complete after the procedure of processing of above-mentioned steel pipe pile (1), adopt pile driver that steel pipe pile (1) is squeezed into, the vertical soil table preloading of wing plate (2) the place plane of symmetry and engineering pile foundation line direction.Steel pipe pile (1) is arranged on apart from immersed tube pile foundation 4D place, and steel pipe pile (1) is arrangement pitch 9D longitudinally.
The geological conditions of certain new construction be under earth's surface 0 ~ 20 meter for soft clay layer, 20 meters is more closely knit sand below.Closing on original engineering foundation is pile foundation, after new construction completion due to the slow consolidation settlement of soft clay under soil table Loading, the effect to thrust to the negative friction of existing pile foundation and level will be formed, for guaranteeing the normal operation of existing building and engineering safety, need be at existing pile foundation arranged outside one row's isolation pile.
Isolation pile adopts band slip casting of the present invention to add wing steel pipe isolation pile.Selecting diameter is 1200mm, the steel pipe pile that wall thickness is 20mm (1), and stake is long is 22.4m, passes through soft clay layer, entering sandy soils is 2.4m.Concrete implementation step is as follows:
At steel pipe pile (1) inwall along being arranged symmetrically with four grouting pipe (3) stake week, described grouting pipe (3) is steel pipe, external diameter 42mm(interior diameter 32mm), length is 20.05m.Be welded on steel pipe pile (1) inwall.Grouting pipe (3) is concordant with steel pipe pile (1) in position, stake top.
2. in the inner distance stake of steel pipe pile (1), hold up 2.4m(2D) position layout back cover steel plate (5).Described back cover steel plate (5) adopts the round plate of thickness 30mm, and external diameter is slightly less than steel pipe pile (1) internal diameter, adopts the mode of welding to be connected with steel pipe pile (1) inwall.Back cover steel plate (5) surrounding leaves four circular holes that pass through for grouting pipe (3), adopts the mode of welding to be connected with steel pipe pile (1) inwall and grouting pipe (3).Grouting pipe (3) is steel pipe, and grouting pipe (3) bottom is furnished with grouting valve (7), and grouting pipe (3) is welded on steel pipe pile (1) inwall, and the long 50mm of stake end back cover steel plate (5) is stretched out in grouting pipe (3) bottom.
3. a side wing (2) is 3.6m(3D by being of a size of height), wide is 1.80(1.5D) m, thickly make for the steel plate of 20mm.The form that steel pipe pile (1) two blocks of wing plates of one-sided employing (2) form wedge is connected with steel pipe pile (1) outer wall, and steel plate angle gets 10
o.Wing plate is along the symmetrical vertically layout of stake periphery, and wing plate (2) adopts the mode of welding to be fixed on steel pipe pile (1) outer wall both sides, before being connected, needs welding position to clear up with steel pipe pile (1) outer wall, guarantees welding quality.
4. complete after the procedure of processing of above-mentioned steel pipe pile (1), adopt pile driver that steel pipe pile (1) is squeezed into, the vertical soil table preloading of wing plate (2) the place plane of symmetry and engineering pile foundation line direction.Steel pipe pile (1) is arranged on apart from immersed tube pile foundation 4D place, and steel pipe pile (1) is arrangement pitch 9D longitudinally.
5. after steel pipe pile (1) has set, according to total grouting amount and grouting pressure, control pile end grouting construction.Grouting amount is rule of thumb got cement quality 1.5D t, and the water/binder ratio of slurries should be determined according to native saturation ratio, permeability, get 0.45～0.65.Pile end grouting stops grouting pressure should, according to soil layer property and slip casting point Depth determination, get 1.2 ~ 3MPa.Flow rate of grouting should not surpass 75L/min.The stake end Stabilizing Grout region (8) forming by pile end grouting.
Claims (1)
1. one kind is reduced the preloading of soil table Adjacent Pile Foundation impact is added to wing steel pipe isolation pile, it is characterized in that isolation pile is driven pile, isolation pile pile body main body is steel pipe pile, near surface pile body periphery is provided with vertical wing plate, remarkable and the poor situation of bearing course at pile end for preloading impact, steel pipe pile inside is provided for the grouting pipe of pile end grouting
It is described that to add wing steel pipe isolation pile main body be steel pipe pile, its external diameter is 600～2000mm, and wall thickness is 10～30mm, be 1～2D(D is being a stake external diameter according to stake end) locate to arrange back cover steel plate, back cover steel plate external diameter is slightly less than steel pipe pile internal diameter, is welded in steel pipe pile inwall;
Described wing plate is made by plain plate, thickness is>=20mm, be highly 1～3D, width is 0.5～1.5D, and wing plate is along the symmetrical vertically layout of stake periphery, and single steel pipe pile wing plate used is 2 or 4, the vertical soil table preloading of wing plate place plane or the place plane of symmetry and engineering pile foundation line direction, when wing plate width is 1～1.5D, the form that two blocks of wing plates of the one-sided employing of steel pipe pile form wedge is connected with steel pipe pile outer wall, and steel plate angle gets 10
o; When wing plate width is 0.5～1D, wing plate of the one-sided employing of steel pipe pile, is connected with steel pipe pile outer wall and diagonal brace steel plate is set, and wing plate adopts the mode of welding to be fixed on steel pipe pile outer wall both sides;
Described grouting pipe is steel pipe, and conduit bottom is furnished with grouting valve, and conduit is welded on steel pipe pile inwall, and grouting pipe arranges according to stake footpath size, is not more than the stake of 1200mm for diameter, along circumference, is symmetrical arranged 2; For diameter, be greater than the stake of 1200mm, be symmetrical arranged 4, grouting pipe is concordant with pile lining in position, stake top, and it is 50mm that grouting pipe bottom is stretched out stake end back cover steel plate long.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310549637.1A CN103603335A (en) | 2013-11-08 | 2013-11-08 | Winged shelter steel-pipe pile capable of reducing influence of soil surface loading to adjacent pile foundations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310549637.1A CN103603335A (en) | 2013-11-08 | 2013-11-08 | Winged shelter steel-pipe pile capable of reducing influence of soil surface loading to adjacent pile foundations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103603335A true CN103603335A (en) | 2014-02-26 |
Family
ID=50121590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310549637.1A Pending CN103603335A (en) | 2013-11-08 | 2013-11-08 | Winged shelter steel-pipe pile capable of reducing influence of soil surface loading to adjacent pile foundations |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103603335A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869117A (en) * | 2017-01-25 | 2017-06-20 | 中铁大桥局集团有限公司 | A kind of steel-pipe pile stake bottom pre-load means and method |
| CN108180021A (en) * | 2018-03-05 | 2018-06-19 | 安徽路鼎科技股份有限公司 | The anti-rotational wing plate of push-bench |
| CN108533273A (en) * | 2018-04-11 | 2018-09-14 | 北京市政建设集团有限责任公司 | A kind of novel pipe shed for Support System in Soft Rock Tunnels leading pre-supporting |
| CN109056704A (en) * | 2018-09-17 | 2018-12-21 | 河北工业大学 | A kind of high-bearing capacity open end steel pipe pile installing constrainer discs additional |
| CN109057722A (en) * | 2018-07-13 | 2018-12-21 | 金川集团股份有限公司 | Casing bit and its fixing means in a kind of drilling of mine down-hole |
| WO2020233145A1 (en) * | 2019-05-23 | 2020-11-26 | 上海长凯岩土工程有限公司 | Construction method using inclined steel pipe combined structure to form force bearing body |
| CN115478557A (en) * | 2022-09-23 | 2022-12-16 | 中广核风电有限公司 | Construction method of wing-shaped pile foundation based on fan in seabed |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4919609A (en) * | 1972-06-14 | 1974-02-21 | ||
| CN101684650A (en) * | 2008-09-27 | 2010-03-31 | 陈东曙 | Cast-in-place concrete thin-walled tooth-shaped tubular pile with large diameter, pile forming device and method for forming pile |
| CN201933487U (en) * | 2010-12-30 | 2011-08-17 | 上海市城市建设设计研究院 | Steel pipe pile |
| CN202672140U (en) * | 2012-05-29 | 2013-01-16 | 上海长凯岩土工程有限公司 | Anchor rod static pressure anti-pulling steel pipe pile with lower portion grouted |
-
2013
- 2013-11-08 CN CN201310549637.1A patent/CN103603335A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4919609A (en) * | 1972-06-14 | 1974-02-21 | ||
| CN101684650A (en) * | 2008-09-27 | 2010-03-31 | 陈东曙 | Cast-in-place concrete thin-walled tooth-shaped tubular pile with large diameter, pile forming device and method for forming pile |
| CN201933487U (en) * | 2010-12-30 | 2011-08-17 | 上海市城市建设设计研究院 | Steel pipe pile |
| CN202672140U (en) * | 2012-05-29 | 2013-01-16 | 上海长凯岩土工程有限公司 | Anchor rod static pressure anti-pulling steel pipe pile with lower portion grouted |
Non-Patent Citations (2)
| Title |
|---|
| 文松霖: "《砂土中加翼桩的水平承载力试验研究》", 《岩土工程学报》, vol. 12, no. 4, 31 July 1990 (1990-07-31), pages 61 - 67 * |
| 王继成等: "《翼板、承台埋深对桩水平承载力的影响研究》", 《人民长江》, vol. 38, no. 8, 31 August 2007 (2007-08-31), pages 162 - 164 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869117A (en) * | 2017-01-25 | 2017-06-20 | 中铁大桥局集团有限公司 | A kind of steel-pipe pile stake bottom pre-load means and method |
| CN108180021A (en) * | 2018-03-05 | 2018-06-19 | 安徽路鼎科技股份有限公司 | The anti-rotational wing plate of push-bench |
| CN108533273A (en) * | 2018-04-11 | 2018-09-14 | 北京市政建设集团有限责任公司 | A kind of novel pipe shed for Support System in Soft Rock Tunnels leading pre-supporting |
| CN109057722A (en) * | 2018-07-13 | 2018-12-21 | 金川集团股份有限公司 | Casing bit and its fixing means in a kind of drilling of mine down-hole |
| CN109057722B (en) * | 2018-07-13 | 2024-03-05 | 金川集团股份有限公司 | Casing device in underground mine drilling and fixing method thereof |
| CN109056704A (en) * | 2018-09-17 | 2018-12-21 | 河北工业大学 | A kind of high-bearing capacity open end steel pipe pile installing constrainer discs additional |
| WO2020233145A1 (en) * | 2019-05-23 | 2020-11-26 | 上海长凯岩土工程有限公司 | Construction method using inclined steel pipe combined structure to form force bearing body |
| CN115478557A (en) * | 2022-09-23 | 2022-12-16 | 中广核风电有限公司 | Construction method of wing-shaped pile foundation based on fan in seabed |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103603335A (en) | Winged shelter steel-pipe pile capable of reducing influence of soil surface loading to adjacent pile foundations | |
| CN103422511B (en) | A kind of reinforcement method for transmission tower shallow base foundation under composite soft soil foundation | |
| CN104452829B (en) | A kind of pile-raft foundation float Structure and construction method | |
| CN203213124U (en) | Steel sheet pile and cement-mixed pile combined support | |
| CN104612179B (en) | Through the construction method of the diaphram wall of super thick silty sand ground | |
| CN104264698A (en) | Construction method of clay core earth rock cofferdam | |
| CN102051879B (en) | Process for constructing soil anchor | |
| CN202626978U (en) | Cemented soil secant pile group, diaphragm wall constituted by same and building foundation pit support system constituted by cemented soil secant pile group | |
| CN104499479A (en) | Dig-hole pile construction method based on penetration of sand gravel backfilling layer | |
| CN103696416B (en) | A kind of method for processing foundation | |
| CN203256729U (en) | Larson steel sheet pile containment device for open caisson construction | |
| CN103741670A (en) | Negative skin friction (NSF) removing foundation treatment method | |
| CN212316948U (en) | Backfill structure for drainage pipeline in high underground water level area | |
| CN110055973B (en) | Foundation pit enclosure structure under high-speed railway bridge with limited construction space and water stopping method | |
| CN215669631U (en) | Deep overburden foundation structure | |
| WO2021088445A1 (en) | Waterproof curtains at ends of underwater channel foundation pit along water banks | |
| CN203939036U (en) | A kind of steel sheet pile cofferdam structure that is applicable to river course | |
| CN202969370U (en) | Novel steel pipe pile | |
| CN108411895A (en) | Pipe row's pump mud injected foundation processing method | |
| CN204343286U (en) | A kind of steel pipe pile support | |
| CN204326119U (en) | A kind of pile-raft foundation float Structure | |
| CN104499489A (en) | Foundation pit construction method | |
| CN211498907U (en) | Waterproof curtain at end of underwater channel foundation pit along two sides of water | |
| CN206052770U (en) | A kind of use cast-in-situ bored pile combines the retaining wall of compaction grouting | |
| CN204435321U (en) | A kind of steam power station water intaking open channel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140226 |