CN203066064U - Double-layer plastic sleeve discrete material and concrete stiffening core combined pile - Google Patents
Double-layer plastic sleeve discrete material and concrete stiffening core combined pile Download PDFInfo
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- CN203066064U CN203066064U CN 201320052934 CN201320052934U CN203066064U CN 203066064 U CN203066064 U CN 203066064U CN 201320052934 CN201320052934 CN 201320052934 CN 201320052934 U CN201320052934 U CN 201320052934U CN 203066064 U CN203066064 U CN 203066064U
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Abstract
The utility model relates to a double-layer plastic sleeve discrete material and concrete stiffening core combined pile which comprises a pile top perforated concrete cover plate, a double-layer hollow plastic sleeve, a discrete material pile body, a reinforced concrete pile core, a precast reinforced concrete pile tip and a double-layer hollow plastic sleeve joint; the top of the double-layer hollow plastic sleeve is inserted into the pile top perforated concrete cover plate, the bottom of the double-layer hollow plastic sleeve is connected with a sleeve plug of the precast reinforced concrete pile tip, and the adjacent plastic sleeves are connected through the double-layer hollow plastic sleeve joint; annular space formed between the double-layer hollow plastic sleeve is filled with discrete materials, and the reinforced concrete pile core is poured in a circular cavity of an inner layer plastic sleeve. The double-layer plastic sleeve discrete material and concrete stiffening core combined pile can take the advantages of a drainage consolidation method and a composite foundation method, not only can greatly promote the vertical bearing capacity of the foundation by virtue of the reinforced concrete pile core, but also accelerate the consolidation of soil between the piles through the vertical drains on two sides of the concrete pile, and also can isolate the pile body concrete from the external environment through the double-layer hollow plastic sleeve, thereby enhancing the corrosion resistance of the pile body.
Description
Technical field
The utility model relates to a kind of double-layer plastic sleeve pipe discrete material and concrete stiff-core compound pile that can possess functions such as accelerating pile peripheral earth discharging consolidation, the vertical non-deformability of enhancing ground, raising steel concrete durability simultaneously, belong to the foundation engineering field, can be used for the treatment of soft foundation of engineerings such as highway, municipal administration.
Background technology
China is vast in territory, and geological conditions complexity and various places difference are bigger, and the soft foundation classification is many, it is wide to distribute, particularly the coastal area and in sedimentary facies area, Di Hu river exist the medium deep soft foundation of numerous complicated.How effectively to improve supporting capacity, the control soil deformation of deep soft soil foundation, be to need one of difficult problem that solves emphatically in the geotechnical engineering always.At present, measure mainly contains two classes to treatment of soft foundation, and a class is consolidation, and another kind of is compound foundation method.
Consolidation is mainly used in solving sedimentation and the stable problem of ground, and in order to accelerate soft soil consolidation, the most effective way is to increase drainage channel in natural soil layer, shortens drainage distance, to accelerate the fixed of soft base.Consolidation is made up of drainage system and two major parts of compression system.According to pressurization and two systems of draining different, derive the method for multiple fixed consolidated subsoil, as preloading, vacuum method, combined vacuum and surcharge preloading method, electroosmotic drainage etc.Because consolidation has characteristics such as cost is low, construction technology maturation, be used widely in China, but this method needs sufficient precompressed and discharging consolidation time, and the construction period is very long, and can't solve the settlement after construction problem that the soft foundation secondary consolidation causes.
Compound foundation method is namely squeezed into various forms of stakes in soft foundation, form composite foundation with the inter-pile soil body and reach the purpose that improves bearing capacity of foundation soil, reduces foundation settlement.The engineering construction zone higher to the ground requirement for bearing capacity or the construction period is short often adopts cement mixing pile, pile for prestressed pipe, powder spray piling, lime-soil compaction pile, deposited reinforced concrete pile etc. composite foundation method to handle.Because the reinforcement mechanism difference of various method for processing foundation, there is some difference for its scope of application, consolidation effect, disposal cost.Wherein, deposited reinforced concrete pile is because quality is more easy to control and detection, and consolidation effect is good, quality problems such as broken pile can not appear, handle in the engineering at deep soft foundation at present and obtain very widespread usage, but its cost is higher, and its pile body supporting capacity can not be given full play to when simultaneously high-intensity stake was used as the embankment stake.
Have at present at cement mixing pile, set sand drain in the inter-pile soils such as prestressed reinforced concrete pipe pile, combination constructing method thereofs such as plastic draining board, realized the Combination application of consolidation and compound foundation method, as draining powder spray piling (2D worker's method) etc., under suitable engineering background and geological conditions, also obtained relative good engineering effect, but these class methods need be carried out compound foundation method construction and consolidation construction respectively, the working procedure complexity, the construction organization difficulty is big, and vertical drainage body still has draining after the precompressed phase finishes, lure the effect of soft soil consolidation sedimentation into, the settlement amount after construction after easily causing architecture construction to be finished is excessive.
In sum, be used for the treatment of soft foundation measure at present and mainly contain consolidation and composite foundation method.The engineering time of consolidation is longer, and reinforcing the bulk strength finish groundwork, to promote amplitude limited, and the later stage deflection is bigger; The cost of single compound foundation method is higher, and pile body construction can produce big disturbance to the inter-pile soil body, and produces excess pore water pressure, and the supporting capacity of inter-pile soil body is difficult to take full advantage of etc.Though can take into account the advantage of consolidation and compound foundation method to a certain extent, there are technical problems such as the construction organization difficulty is big, the posterior settlement distortion is wayward in the method for existing Combination application discharging consolidation and composite foundation combination more.
Given this, according to present actual conditions and technical condition, a kind of length that can have consolidation and compound foundation method concurrently of invention of still needing can effectively be improved corrosion resistance, and can be to the novel compound pile of the dynamic control of ground posterior settlement.
Summary of the invention
The purpose of this utility model is consolidation and compound foundation method Combination application, provide a kind of and can possess functions such as the pile peripheral earth of acceleration discharging consolidation, the vertical non-deformability of enhancing ground, raising steel concrete durability simultaneously, and can effectively reduce treatment of soft foundation cost and double-layer plastic sleeve pipe discrete material and the concrete stiff-core compound pile of shortening precompressed phase.
In order to realize above-mentioned technical purpose, the utility model has adopted following technical scheme:
A kind of double-layer plastic sleeve pipe discrete material and concrete stiff-core compound pile is characterized in that compound pile is made up of stake heading tape hole concrete cover, double-deck hollow plastic sleeve pipe, discrete material pile body, reinforced concrete pile core, precast reinforced concrete pile point, double-deck hollow plastic casing joint; Insert in the concrete cover of stake heading tape hole at the top of double-deck hollow plastic sleeve pipe, and the bottom is connected with the sleeve pipe plug of precast pile tip, connects with casing joint between the adjacent plastic bushing; In the annular space that double-deck hollow plastic sleeve pipe forms, be filled with discrete material, in the circular cavity of inner plastic sleeve pipe, built the reinforced concrete pile core.
Double-deck hollow plastic sleeve pipe can adopt single wall screw pvc pipe, PE pipe or HDPE pipe, and casing shoe and top are not all sealed; Bond with PVC adhesive glue, super glue between every joint sleeve pipe and the casing joint, or holdfast is fixedly connected.
Evenly perforate on the outer tube wall of double-deck hollow plastic sleeve pipe, and the anti-geotextiles of filtering of outsourcing.
After immersed tube is squeezed into ground, fill discrete material in the annular space that double-deck hollow plastic sleeve pipe forms, this discrete material is preferably gravel or rubble or melon seeds sheet.
Stake heading tape hole concrete cover is cast-in-situ reinforced concrete slab, and rounded or square, the horizontal main muscle of its inside is fixedlyed connected with reinforcing cage master muscle, and double-deck hollow plastic sleeve pipe inserts certain depth in the cover plate.
Be provided with 4 ~ 6 drain holes and 2 Grouting Pipe in the concrete cover of stake heading tape hole, the position of drain hole is corresponding with double-deck hollow plastic sleeve pipe, evenly lays at interval ringwise, and the aperture is slightly less than the hollow gap width of double-deck hollow plastic sleeve pipe.
Go back symmetry in the concrete cover of stake heading tape hole and lay 2 Grouting Pipe, Grouting Pipe one end inserts in the discrete material of double-deck hollow plastic sleeve pipe, and the other end is responsible for slip casting and is connected.
It is conical that the bottom of precast pile tip is, and stake pinnacle face is provided with sleeve pipe plug and the cover pipe connected pipe that is connected with double-deck hollow plastic sleeve pipe, is provided with the immersed tube limited impression of annular in the outside of sleeve pipe plug, and the stake point adopts anticorrosion concrete prefabricated.
The discrete material of double-deck hollow plastic sleeve pipe connects by the sand cushion of stake heading tape hole concrete cover with stake top periphery.
The double-deck hollow plastic sleeve pipe discrete material of double-layer plastic sleeve pipe of the present utility model and concrete stiff-core compound pile comprise following construction sequence:
Step 2, precast concrete pile point, stake pinnacle face diameter is preset the sleeve pipe plug that is connected with double-deck hollow plastic sleeve pipe, the immersed tube limited impression that is connected with outside steel pipe immersed tube than the big 150mm ~ 250mm of outside plastic bushing in concrete;
Step 3, connect with casing joint and respectively to save double-deck hollow plastic sleeve pipe, the sleeve pipe total length surpasses designing pile length 150mm ~ 250mm;
Step 4, double-deck hollow plastic sleeve pipe is connected sealing with precast pile tip sleeve pipe plug, and gluing with the PVC cementing agent, and the sleeve pipe that will have the stake point then stretches into the steel pipe immersed tube of the outside from the bottom of outside steel pipe immersed tube; Insert batch meter 19 at the immersed tube top, the discrete material material inlet 20 of batch meter 19 and concrete pile core material inlet 21 respectively with the correspondence position of double-deck hollow plastic sleeve pipe;
Step 5, adopt the stake machine that sets that outside steel pipe immersed tube, bottom precast pile tip and double-deck hollow plastic sleeve pipe vertically, are evenly squeezed in the ground, water filling in the circular cavity of sleeve pipe then;
Step 7, the water in the inner layer sleeve extracted after, reinforcing cage is put into the circular cavity of inner plastic sleeve pipe, reinforcing cage master muscle should stretch into 150mm ~ 250mm in the heading tape hole concrete cover, and is welded to connect with transverse reinforcement in the concrete cover of stake heading tape hole;
Pour into discrete material in step 8, the annular space that forms toward double-deck hollow plastic sleeve pipe;
Step 9, in the circular cavity of inner plastic sleeve pipe concreting, and the concrete at stake top, and jolt ramming forms reinforced concrete pile core and a stake heading tape hole concrete cover;
Step 10, treat concrete curing expiration after 28 days, lay the sand cushion of thick 300mm ~ 500mm on the stake top;
The utlity model has following advantage and beneficial effect:
(1) in the annular space that double-deck hollow plastic sleeve pipe with holes forms, pours into medium coarse sand, can form the uniform vertical drainage body of thickness, stake heading tape hole concrete cover and stake top drainage blanket with top form the foundation drainage system, can accelerate the discharging consolidation of soft base.
Template when (2) inboard plastic bushing both can be used as concrete pile core pile has improved concrete pouring quality, also concrete pile core and external environment can be isolated, and has improved the concrete corrosion resistance of pile body; In addition, the plastic bushing sidewall is shape of threads, can fully contact with the concrete of cast, has improved the stress performance of pile body.
(3) precast pile tip adopts anticorrosion concrete prefabricated, and a stake point preset can with the close-connected sleeve pipe plug of double-layer plastic sleeve pipe and tube connector, the good leak tightness that sleeve pipe is connected with the stake point is from contacting of bottom partition underground water and concrete pile body.
(4) adopt the sleeve pipe water injection technology in the work progress, can prevent that double-deck hollow plastic sleeve pipe from deforming when adjacent stake sets, reduced pipe thickness, saved construction costs.
(5) after the end of precompressed phase, can be by Grouting Pipe slip casting default in the cover plate, with drain hole shutoff default in the cover plate, realization is to effective control of posterior settlement distortion.
In a word, characteristics of the present utility model are to have simultaneously the advantage of consolidation and compound foundation method, not only can strengthen the vertical non-deformability of ground, the discharging consolidation of acceleration inter-pile soil body, can also improve the corrosion resistance of pile body, and can control the settlement after construction that water discharging body brings out.
Description of drawings
Fig. 1 is the structural representation of the utility model double-layer plastic sleeve pipe discrete material and concrete stiff-core compound pile;
Fig. 2 is double-deck hollow plastic sleeve pipe schematic diagram;
Fig. 3 is a cross-sectional drawing of heading tape hole concrete cover;
Fig. 4 is the precast pile tip schematic diagram;
Fig. 5 is compound pile batch meter sectional view;
Fig. 6 is double-layer plastic sleeve pipe discrete material and concrete stiff-core compound pile construction technology figure.
Among the figure: the concrete cover of 1-stake heading tape hole, 2-stake top drainage blanket, the double-deck hollow plastic sleeve pipe of 3-, the 4-discrete material, the double-deck hollow plastic casing joint of 5-, 6-reinforced concrete pile core, the 7-reinforcing cage, the 8-precast pile tip, 9-cover plate drain hole, the horizontal main muscle of 10-, the double-deck hollow plastic sleeve pipe of 11-plug, 12-immersed tube limited impression, the 13-casing pipe hole opening, the 14-outer tube, pipe in the 15-, the anti-geotextiles of filtering of 16-, the inboard cover of 17-pipe connected pipe, 18-outer side sleeve tube connector, the 19-batch meter, 20-discrete material material inlet, 21-concrete pile core material inlet, the 22-immersed tube, the 23-Grouting Pipe.
Specific embodiment
Reinforcing bar welding procedure technical requirements, the concrete design and construction requirement of pile body, the bonding construction requirements of double-deck hollow plastic sleeve pipe and casing joint etc. are not repeated in the present embodiment, and emphasis is set forth the embodiment that the utility model relates to structure.
Fig. 1 is the structural representation of the utility model double-layer plastic sleeve pipe discrete material and concrete stiff-core compound pile, double-layer plastic sleeve pipe discrete material and concrete stiff-core compound pile with reference to shown in Figure 1 comprise a heading tape hole concrete cover 1, double-deck hollow plastic sleeve pipe 3, discrete material 4, reinforced concrete pile core 6, precast pile tip 8, double-deck hollow plastic casing joint 5.Outer tube 14 is formed double-deck hollow plastic sleeve pipe 3 with interior pipe 15, insert in the stake heading tape hole concrete cover 1 at the top of double-deck hollow plastic sleeve pipe 3, and the bottom is connected with the double-deck hollow plastic sleeve pipe plug 11 of precast pile tip 8, inboard cover pipe connected pipe 17, outer side sleeve tube connector 18.Connect with double-deck hollow plastic casing joint 5 between the adjacent plastic bushing; In the annular space that double-deck hollow plastic sleeve pipe 3 forms, be filled with discrete material 4, reinforced concrete pile core 6 is arranged in the circular cavity of inner plastic sleeve pipe.
Fig. 2 is double-deck hollow plastic sleeve pipe schematic diagram.As shown in Figure 2, double-deck hollow plastic sleeve pipe 3 comprises outer tube 14 and interior pipe 15, all adopts single wall PVC plastic film capicitor, every joint cover pipe range 6m, and inner tube diameter is 200mm, the hollow slit width between outer tube 14 and the interior pipe 15 is 60mm,
On the tube wall of the outer tube 14 of double-deck hollow plastic sleeve pipe 3, evenly offer casing pipe hole opening 13, casing pipe hole opening 13 vertically be spaced apart 300mm, hoop is uniformly-spaced evenly laid; The anti-filter of the outside bag geotextiles 16 of the outer tube 14 of double-deck hollow plastic sleeve pipe 3.
Use double-deck hollow plastic casing joint 5 to connect between the adjacent double-layers hollow plastic sleeve pipe 3, the PVC straight coupling is adopted in double-deck hollow plastic casing joint 5, and the bellmouth degree of depth is 50mm; Firm with PVC adhesive glue bonding between the double-deck hollow plastic sleeve pipe 3 of every joint and the double-deck hollow plastic casing joint 5.
150mm in the concrete cover 1 of stake heading tape hole is inserted at the top of double-deck hollow plastic sleeve pipe 3, and the bottom is erect sleeve pipe plug 11 with the double-deck hollow of precast pile tip 8 and is connected.
After immersed tube 22 and precast pile tip 8 are squeezed into ground, in the annular space that double-deck hollow plastic sleeve pipe 3 forms, fill discrete material 4, discrete material 4 adopt mud contents less than 3% and transmission coefficient greater than 1 * 10
-2The medium coarse sand of m/s.
In the circular cavity of the interior pipe 15 of double-deck hollow plastic sleeve pipe 3, settle reinforcing cage 7, fluid concrete forms reinforced concrete pile core 6, concrete adopts the pea gravel concreten of C30, requires the concrete aggregate maximum particle diameter to be no more than 25mm, and workability of concrete can satisfy the current specifications requirement; And during concreting, need to vibrate evenly along full stake is long with vibrating head.Reinforcing cage 7 carries out arrangement of reinforcement in strict accordance with the stake designing requirement.
Fig. 3 is the cross-sectional drawing of stake heading tape hole concrete cover.As shown in figs. 1 and 3, fixedly connected with stake heading tape hole concrete cover 1 in double-deck hollow plastic sleeve pipe 3 tops, and stake heading tape hole concrete cover 1 is rounded, adopts the mode of cover plate and the integrated pouring construction of pile concrete to form.Its inside is provided with 4 horizontal main muscle 10, and horizontal main muscle 10 adopts Φ 16 reinforcing bars; Reinforcing cage 7 main muscle stretch into 200mm in the heading tape hole concrete cover 1, are welded to connect with horizontal main muscle 10.
The diameter of stake heading tape hole concrete cover 1 is 600mm, and height is 200mm, need guarantee when building that a heading tape hole concrete cover 1 is concentric with double-deck hollow plastic sleeve pipe 3.
Be preset with 4 cover plate drain holes 9 along annular in the stake heading tape hole concrete cover 1, the position of cover plate drain hole 9 is corresponding with the annular space that double-deck hollow plastic sleeve pipe 3 forms, evenly lay ringwise, aperture 60mm, fill up discrete material in the hole, cover plate drain hole 9 connects with stake top sand mat of subgrade 2.
Symmetry is laid 2 Grouting Pipe 23 in stake heading tape hole concrete cover 1, and Grouting Pipe 23 1 ends insert the discrete material 4 interior 100mm of double-deck hollow plastic sleeve pipe 3, and the other end is responsible for slip casting and is connected.
Fig. 4 is the precast pile tip schematic diagram.As shown in Figure 4, precast pile tip 8 is reinforced concrete structure, and adopting diameter is the circular stake point of 400mm, and the sharp strength grade of concrete of stake is C30, requires the sharp surfacing of stake closely knit, area must not be arranged greater than 1% honeycomb, pitted skin and scarce limit arrisdefect phenomenon.
The center upper portion of precast pile tip 8 is provided with annular double-deck hollow plastic sleeve pipe plug 11, inboard cover pipe connected pipe 17, outer side sleeve tube connector 18; The width of double-deck hollow plastic sleeve pipe plug 11 is 50mm, and height is 150mm; Inboard cover pipe connected pipe 17, outer side sleeve tube connector 18 adopt light surface and PVC pipes, pipe thickness 10mm, and tube connector 17,18 external diameter equate that with the internal diameter of outer tube 14, interior pipe 15 quality and dimensional requirement satisfy the current specifications requirement.
Immersed tube limited impression 12 is established in the outside at double-deck center plastic bushing plug 11, and the degree of depth of groove 12 is 150mm.
The external diameter of immersed tube 22 is 350mm, adopts seamless steel pipe, and the strength grade of steel is Q345, and thickness is 20mm, and the steel pipe sizes specification satisfies the existing requirement of standard.
Fig. 5 is compound pile batch meter sectional view.As shown in Figure 5, batch meter 19 comprises discrete material material inlet 20 and concrete pile core material inlet 21; The height of batch meter 19 is 250mm, and the top is rounded, and external diameter is 450mm, and bottom size is corresponding with double-deck hollow plastic sleeve pipe 3; Adopting the thickness of steel plate is 8mm, and the strength grade of steel is Q235.
Fig. 6 is the construction technology figure of double-layer plastic sleeve pipe discrete material and concrete stiff-core compound pile, and with reference to Fig. 6, the work progress of double-layer plastic sleeve pipe discrete material and concrete stiff-core compound pile comprises:
Step 2, usefulness particular manufacturing craft precast concrete pile point 8, a stake pinnacle face diameter is 400mm, default the sleeve pipe plug 11 that is connected with double-deck hollow plastic sleeve pipe and the annular immersed tube limited impression 12 that is connected with immersed tube 22 in concrete;
Step 3, connect with double-deck hollow plastic casing joint 5 and respectively to save double-deck hollow plastic sleeve pipe 3, and gluing with the PVC cementing agent, and the length of double-deck hollow plastic sleeve pipe 3 is than the big 200mm of designing pile length;
Step 4, double-deck hollow plastic sleeve pipe 3 closely is connected with precast pile tip 8, the double-deck hollow plastic sleeve pipe 3 that will have precast pile tip 8 then stretches into the pipe from the bottom of immersed tube 22, insert batch meter 19 at immersed tube 22 tops, the discrete material material inlet 20 of batch meter 19 is corresponding with double-deck hollow plastic sleeve pipe respectively with concrete pile core material inlet 21;
Step 5, adopt the stake machine that sets that immersed tube 22, precast pile tip 8 and double-deck hollow plastic sleeve pipe 3 vertically, are evenly squeezed in the ground, water filling in the circular cavity of pipe 15 within the double-layer plastic sleeve pipe 3 then;
Step 7, the water in the interior pipe 15 of double-layer plastic sleeve pipe 3 is extracted, reinforcing cage 7 is put into pipe 15, reinforcing cage 7 main muscle stretch into about 200mm in the casting platform of heading tape hole concrete cover 1, and are welded to connect with the interior horizontal main muscle 10 of stake heading tape hole concrete cover 1;
Pour into discrete material 4 in step 8, the annular space that forms toward double-layer plastic sleeve pipe 3, form outside longitudinal drainage passage;
Step 9, in the double-layer plastic sleeve pipe concreting in pipe 15 the circular cavity, concreting in the casting platform of stake heading tape hole concrete cover 1, and jolt ramming subsequently forms reinforced concrete pile core 6 and a stake heading tape hole concrete cover 1;
Step 10, treat concrete setting after, lay the sand cushion of thick 300mm again on stake top;
Claims (8)
1. a double-layer plastic sleeve pipe discrete material and concrete stiff-core compound pile is characterized in that compound pile is made up of stake heading tape hole concrete cover, double-deck hollow plastic sleeve pipe, discrete material pile body, reinforced concrete pile core, precast reinforced concrete pile point, double-deck hollow plastic casing joint; Insert in the concrete cover of stake heading tape hole at the top of double-deck hollow plastic sleeve pipe, and the bottom is connected with the sleeve pipe plug of precast pile tip, connects with casing joint between the adjacent plastic bushing; In the annular space that double-deck hollow plastic sleeve pipe forms, be filled with discrete material, in the circular cavity of inner plastic sleeve pipe, built the reinforced concrete pile core.
2. double-layer plastic sleeve pipe discrete material according to claim 1 and concrete stiff-core compound pile is characterized in that described double-deck hollow plastic sleeve pipe adopts single wall screw pvc pipe, PE pipe or HDPE pipe, and casing shoe and top are not all sealed; Bond with PVC adhesive glue, super glue between every joint sleeve pipe and the casing joint, or holdfast is fixedly connected.
3. double-layer plastic sleeve pipe discrete material according to claim 2 and concrete stiff-core compound pile is characterized in that evenly perforate on the outer tube wall of described double-deck hollow plastic sleeve pipe, and the anti-geotextiles of filtering of outsourcing.
4. double-layer plastic sleeve pipe discrete material according to claim 1 and concrete stiff-core compound pile is characterized in that described discrete material is gravel, rubble or melon seeds sheet.
5. double-layer plastic sleeve pipe discrete material according to claim 1 and concrete stiff-core compound pile, it is characterized in that described stake heading tape hole concrete cover is cast-in-situ reinforced concrete slab, rounded or square, the horizontal main muscle of its inside is fixedlyed connected with reinforcing cage master muscle, and double-deck hollow plastic sleeve pipe inserts certain depth in the cover plate.
6. double-layer plastic sleeve pipe discrete material according to claim 1 and concrete stiff-core compound pile, it is characterized in that being provided with 4 ~ 6 drain holes and 2 Grouting Pipe in the concrete cover of described stake heading tape hole, the position of drain hole is corresponding with double-deck hollow plastic sleeve pipe, uniformly-spaced evenly lays ringwise.
7. double-layer plastic sleeve pipe discrete material according to claim 1 and concrete stiff-core compound pile, the bottom that it is characterized in that described precast pile tip is conical, stake pinnacle face is provided with sleeve pipe plug and the cover pipe connected pipe that is connected with double-deck hollow plastic sleeve pipe, be provided with the immersed tube limited impression of annular in the outside of sleeve pipe plug, the stake point adopts anticorrosion concrete prefabricated.
8. double-layer plastic sleeve pipe discrete material according to claim 1 and concrete stiff-core compound pile is characterized in that described stake heading tape hole concrete cover and the sand cushion of stake top periphery connect.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103074891A (en) * | 2013-01-29 | 2013-05-01 | 浙江信博城市建设有限公司 | Double-layer plastic sleeve bulk material and concrete stiffness core composite pile and construction method thereof |
CN108755652A (en) * | 2018-06-15 | 2018-11-06 | 中铁西安勘察设计研究院有限责任公司 | The basement process gauze granular media pilework of weak soil, sand foundation |
CN110480809A (en) * | 2019-08-27 | 2019-11-22 | 陕西工业职业技术学院 | A kind of modularization precast concrete formwork for placing |
RU204490U1 (en) * | 2020-11-25 | 2021-05-27 | Федеральное государственное автономное образовательное учреждение высшего образования "Сибирский федеральный университет" | DRILLING PIL |
-
2013
- 2013-01-29 CN CN 201320052934 patent/CN203066064U/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103074891A (en) * | 2013-01-29 | 2013-05-01 | 浙江信博城市建设有限公司 | Double-layer plastic sleeve bulk material and concrete stiffness core composite pile and construction method thereof |
CN103074891B (en) * | 2013-01-29 | 2015-07-15 | 浙江信博城市建设有限公司 | Double-layer plastic sleeve bulk material and concrete stiffness core composite pile and construction method thereof |
CN108755652A (en) * | 2018-06-15 | 2018-11-06 | 中铁西安勘察设计研究院有限责任公司 | The basement process gauze granular media pilework of weak soil, sand foundation |
CN110480809A (en) * | 2019-08-27 | 2019-11-22 | 陕西工业职业技术学院 | A kind of modularization precast concrete formwork for placing |
RU204490U1 (en) * | 2020-11-25 | 2021-05-27 | Федеральное государственное автономное образовательное учреждение высшего образования "Сибирский федеральный университет" | DRILLING PIL |
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